diff options
Diffstat (limited to 'erts/emulator/sys/ose')
| -rw-r--r-- | erts/emulator/sys/ose/default.lmconf | 25 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/driver_int.h | 41 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/erl_main.c | 51 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/erl_ose_sys.h | 353 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/erl_ose_sys_ddll.c | 126 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/erl_poll.c | 774 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/erts.sig | 17 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/gcc_4.4.3_lm_ppc.lcf | 182 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/gcc_4.6.3_lm_ppc.lcf | 242 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/sys.c | 1755 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/sys_float.c | 844 | ||||
| -rw-r--r-- | erts/emulator/sys/ose/sys_time.c | 56 |
12 files changed, 4466 insertions, 0 deletions
diff --git a/erts/emulator/sys/ose/default.lmconf b/erts/emulator/sys/ose/default.lmconf new file mode 100644 index 0000000000..a66b0ece56 --- /dev/null +++ b/erts/emulator/sys/ose/default.lmconf @@ -0,0 +1,25 @@ +OSE_LM_STACK_SIZES=256,512,1024,2048,4096,8192,16384,65536 +OSE_LM_SIGNAL_SIZES=31,63,127,255,1023,4095,16383,65535 +OSE_LM_POOL_SIZE=0x200000 +OSE_LM_MAIN_NAME=main +OSE_LM_MAIN_STACK_SIZE=0xF000 +OSE_LM_MAIN_PRIORITY=20 +OSE_LM_PROGRAM_TYPE=APP_RAM +OSE_LM_DATA_INIT=YES +OSE_LM_BSS_INIT=YES +OSE_LM_EXEC_MODEL=SHARED +HEAP_MAX_SIZE=1000000000 +HEAP_SMALL_BUF_INIT_SIZE=64000000 +HEAP_LARGE_BUF_THRESHOLD=16000000 +HEAP_LOCK_TYPE=2 + +ERTS_DEFAULT_PRIO=24 +ERTS_SCHEDULER_PRIO=24 +ERTS_ASYNC_PRIO=22 +ERTS_AUX_PRIO=24 +ERTS_SYS_MSG_DISPATCHER_PRIO=21 + +# Setting the environment variable EFS_RESOLVE_TMO on the block to 0. +# This will eliminiate delays when trying to open files on not mounted +# volumes. +EFS_RESOLVE_TMO=0 diff --git a/erts/emulator/sys/ose/driver_int.h b/erts/emulator/sys/ose/driver_int.h new file mode 100644 index 0000000000..2c9ac955d8 --- /dev/null +++ b/erts/emulator/sys/ose/driver_int.h @@ -0,0 +1,41 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 1997-2009. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ +/* + * System dependant driver declarations + */ + +#ifndef __DRIVER_INT_H__ +#define __DRIVER_INT_H__ + +#ifdef HAVE_SYS_UIO_H +#include <sys/types.h> +#include <sys/uio.h> + +typedef struct iovec SysIOVec; + +#else + +typedef struct { + char* iov_base; + int iov_len; +} SysIOVec; + +#endif + +#endif diff --git a/erts/emulator/sys/ose/erl_main.c b/erts/emulator/sys/ose/erl_main.c new file mode 100644 index 0000000000..03119c3fec --- /dev/null +++ b/erts/emulator/sys/ose/erl_main.c @@ -0,0 +1,51 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2000-2009. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#include <stdlib.h> + +#include "sys.h" +#include "erl_vm.h" +#include "global.h" +#include "ose.h" + +int +main(int argc, char **argv) { + + /* When starting using pm_create -c ARGV="-- -root ..", argv[0] is the first + part of ARGV and not the name of the executable. So we shuffle some + pointers here to make erl_start happy. */ + if (argv[0][0] == '-') { + int i; + char **tmp_argv = malloc(sizeof(char*)*(argc+1)); + for (i = 0; i < argc; i++) + tmp_argv[i+1] = argv[i]; + tmp_argv[0] = "beam"; + erl_start(argc+1,tmp_argv); + free(tmp_argv); + } else { + erl_start(argc,argv); + } + + stop(current_process()); + + return 0; +} diff --git a/erts/emulator/sys/ose/erl_ose_sys.h b/erts/emulator/sys/ose/erl_ose_sys.h new file mode 100644 index 0000000000..cd66d95c26 --- /dev/null +++ b/erts/emulator/sys/ose/erl_ose_sys.h @@ -0,0 +1,353 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 1997-2011. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + * + * This file handles differences between different Unix systems. + * This should be the only place with conditional compilation + * depending on the type of OS. + */ + +#ifndef _ERL_OSE_SYS_H +#define _ERL_OSE_SYS_H + +#include "ose.h" +#undef NIL +#include "ramlog.h" +#include "erts.sig" + +#include "fcntl.h" +#include "math.h" +#include "stdio.h" +#include "stdlib.h" +#include "string.h" +#include "sys/param.h" +#include "sys/time.h" +#include "time.h" +#include "dirent.h" +#include "ethread.h" + +/* FIXME: configuration options */ +#define ERTS_SCHED_MIN_SPIN 1 +#define ERTS_SCHED_ONLY_POLL_SCHED_1 1 +#define ERTS_SCHED_FAIR 1 +#define NO_SYSCONF 1 +#define OPEN_MAX FOPEN_MAX + +#define MAP_ANON MAP_ANONYMOUS + +#ifndef HAVE_MMAP +# define HAVE_MMAP 0 +#endif + +#if HAVE_MMAP +# include "sys/mman.h" +#endif + +/* + * Min number of async threads + */ +#define ERTS_MIN_NO_OF_ASYNC_THREADS 1 + +/* + * Our own type of "FD's" + */ +#define ERTS_SYS_FD_TYPE struct erts_sys_fd_type* +#define NO_FSTAT_ON_SYS_FD_TYPE 1 /* They are signals, not files */ + +#include "sys/stat.h" + +/* FIXME mremap is not defined in OSE - POSIX issue */ +extern void *mremap (void *__addr, size_t __old_len, size_t __new_len, + int __flags, ...); + +/* FIXME: mremap constants */ +#define MREMAP_MAYMOVE 1 +#define MREMAP_FIXED 2 + +typedef void *GETENV_STATE; + +/* +** For the erl_timer_sup module. +*/ +#define HAVE_GETHRTIME + +typedef long long SysHrTime; +extern SysHrTime sys_gethrtime(void); + +void sys_init_hrtime(void); + +typedef time_t erts_time_t; + +typedef struct timeval SysTimeval; + +#define sys_gettimeofday(Arg) ((void) gettimeofday((Arg), NULL)) + +typedef struct { + clock_t tms_utime; + clock_t tms_stime; + clock_t tms_cutime; + clock_t tms_cstime; +} SysTimes; + +extern int erts_ticks_per_sec; + +#define SYS_CLK_TCK (erts_ticks_per_sec) + +extern clock_t sys_times(SysTimes *buffer); + +/* No use in having other resolutions than 1 Ms. */ +#define SYS_CLOCK_RESOLUTION 1 + +#ifdef NO_FPE_SIGNALS + +#define erts_get_current_fp_exception() NULL +#ifdef ERTS_SMP +#define erts_thread_init_fp_exception() do{}while(0) +#endif +# define __ERTS_FP_CHECK_INIT(fpexnp) do {} while (0) +# define __ERTS_FP_ERROR(fpexnp, f, Action) if (!finite(f)) { Action; } else {} +# define __ERTS_FP_ERROR_THOROUGH(fpexnp, f, Action) __ERTS_FP_ERROR(fpexnp, f, Action) +# define __ERTS_SAVE_FP_EXCEPTION(fpexnp) +# define __ERTS_RESTORE_FP_EXCEPTION(fpexnp) + +#define erts_sys_block_fpe() 0 +#define erts_sys_unblock_fpe(x) do{}while(0) + +#else /* !NO_FPE_SIGNALS */ + +extern volatile unsigned long *erts_get_current_fp_exception(void); +#ifdef ERTS_SMP +extern void erts_thread_init_fp_exception(void); +#endif +# if (defined(__i386__) || defined(__x86_64__)) && defined(__GNUC__) +# define erts_fwait(fpexnp,f) \ + __asm__ __volatile__("fwait" : "=m"(*(fpexnp)) : "m"(f)) +# elif (defined(__powerpc__) || defined(__ppc__)) && defined(__GNUC__) +# define erts_fwait(fpexnp,f) \ + __asm__ __volatile__("" : "=m"(*(fpexnp)) : "fm"(f)) +# elif defined(__sparc__) && defined(__linux__) && defined(__GNUC__) +# define erts_fwait(fpexnp,f) \ + __asm__ __volatile__("" : "=m"(*(fpexnp)) : "em"(f)) +# else +# define erts_fwait(fpexnp,f) \ + __asm__ __volatile__("" : "=m"(*(fpexnp)) : "g"(f)) +# endif +# if (defined(__i386__) || defined(__x86_64__)) && defined(__GNUC__) + extern void erts_restore_fpu(void); +# else +# define erts_restore_fpu() /*empty*/ +# endif +# if (!defined(__GNUC__) || \ + (__GNUC__ < 2) || \ + (__GNUC__ == 2 && __GNUC_MINOR < 96)) && \ + !defined(__builtin_expect) +# define __builtin_expect(x, expected_value) (x) +# endif +static __inline__ int erts_check_fpe(volatile unsigned long *fp_exception, double f) +{ + erts_fwait(fp_exception, f); + if (__builtin_expect(*fp_exception == 0, 1)) + return 0; + *fp_exception = 0; + erts_restore_fpu(); + return 1; +} +# undef erts_fwait +# undef erts_restore_fpu +extern void erts_fp_check_init_error(volatile unsigned long *fp_exception); +static __inline__ void __ERTS_FP_CHECK_INIT(volatile unsigned long *fp_exception) +{ + if (__builtin_expect(*fp_exception == 0, 1)) + return; + erts_fp_check_init_error(fp_exception); +} +# define __ERTS_FP_ERROR(fpexnp, f, Action) do { if (erts_check_fpe((fpexnp),(f))) { Action; } } while (0) +# define __ERTS_SAVE_FP_EXCEPTION(fpexnp) unsigned long old_erl_fp_exception = *(fpexnp) +# define __ERTS_RESTORE_FP_EXCEPTION(fpexnp) \ + do { *(fpexnp) = old_erl_fp_exception; } while (0) + /* This is for library calls where we don't trust the external + code to always throw floating-point exceptions on errors. */ +static __inline__ int erts_check_fpe_thorough(volatile unsigned long *fp_exception, double f) +{ + return erts_check_fpe(fp_exception, f) || !finite(f); +} +# define __ERTS_FP_ERROR_THOROUGH(fpexnp, f, Action) \ + do { if (erts_check_fpe_thorough((fpexnp),(f))) { Action; } } while (0) + +int erts_sys_block_fpe(void); +void erts_sys_unblock_fpe(int); + +#endif /* !NO_FPE_SIGNALS */ + +#define ERTS_FP_CHECK_INIT(p) __ERTS_FP_CHECK_INIT(&(p)->fp_exception) +#define ERTS_FP_ERROR(p, f, A) __ERTS_FP_ERROR(&(p)->fp_exception, f, A) +#define ERTS_FP_ERROR_THOROUGH(p, f, A) __ERTS_FP_ERROR_THOROUGH(&(p)->fp_exception, f, A) + +/* FIXME: force HAVE_GETPAGESIZE and stub getpagesize */ +#ifndef HAVE_GETPAGESIZE +#define HAVE_GETPAGESIZE 1 +#endif + +extern int getpagesize(void); + +#ifndef HZ +#define HZ 60 +#endif + +/* OSE5 doesn't provide limits.h so a number of macros should be + * added manually */ + +#ifndef CHAR_BIT +#define CHAR_BIT 8 +#endif + +/* Minimum and maximum values a `signed int' can hold. */ +#ifndef INT_MAX +#define INT_MAX 2147483647 +#endif + +#ifndef INT_MIN +#define INT_MIN (-INT_MAX - 1) +#endif + +#ifndef UINT_MAX +# define UINT_MAX 4294967295U +#endif + +/* +static void erts_ose_sys_send(union SIGNAL **signal,PROCESS dst, + char* file,int line) { + SIGSELECT **ziggy = (SIGSELECT**)signal; + printf("%s:%d 0x%x Send signal 0x%x(0x%x) to 0x%x\r\n", + file,line,current_process(),ziggy[0][0],*ziggy,dst); + send(signal,dst); +} +#define send(signal,dst) erts_ose_sys_send(signal,dst,__FILE__,__LINE__) + +static void erts_ose_sys_send_w_sender(union SIGNAL **signal, + PROCESS sender,PROCESS dst, + char* file,int line) { + SIGSELECT **ziggy = (SIGSELECT**)signal; + printf("%s:%d 0x%x Send signal 0x%x(0x%x) to 0x%x as 0x%x\r\n", + file,line,current_process(),ziggy[0][0],*ziggy,dst,sender); + send_w_sender(signal,sender,dst); +} +#define send_w_sender(signal,sender,dst) \ + erts_ose_sys_send_w_sender(signal,sender,dst,__FILE__,__LINE__) + + +static union SIGNAL *erts_ose_sys_receive(SIGSELECT *sigsel, + char *file, + int line) { + SIGSELECT *sig; + int i; + + printf("%s:%d 0x%x receive({%d,",file,line,current_process(),sigsel[0]); + for (i = 1; i < sigsel[0]; i++) + printf("0x%x, ",sigsel[i]); + if (sigsel[0] != 0) + printf("0x%x",sigsel[i]); + printf("})\n"); + sig = (SIGSELECT*)receive(sigsel); + printf("%s:%d 0x%x got 0x%x from 0x%x\n",file,line,current_process(), + *sig,sender((union SIGNAL**)(&sig))); + return (union SIGNAL*)sig; +} +#define receive(SIGSEL) erts_ose_sys_receive(SIGSEL,__FILE__,__LINE__) + +static union SIGNAL *erts_ose_sys_receive_w_tmo(OSTIME tmo,SIGSELECT *sigsel, + char *file,int line) { + SIGSELECT *sig; + int i; + if (tmo == 0) { + sig = (SIGSELECT*)receive_w_tmo(tmo,sigsel); + if (sig != NULL) { + printf("%s:%d 0x%x receive_w_tmo(0,{%d,",file,line,current_process(), + sigsel[0]); + for (i = 1; i < sigsel[0]; i++) + printf("0x%x, ",sigsel[i]); + if (sigsel[0] != 0) + printf("0x%x",sigsel[i]); + printf("})\n"); + printf("%s:%d 0x%x got 0x%x from 0x%x\n",file,line,current_process(), + *sig,sender((union SIGNAL**)(&sig))); + } + } else { + printf("%s:%d 0x%x receive_w_tmo(%u,{%d,",file,line,current_process(),tmo, + sigsel[0]); + for (i = 1; i < sigsel[0]; i++) + printf("0x%x, ",sigsel[i]); + if (sigsel[0] != 0) + printf("0x%x",sigsel[i]); + printf("})\n"); + sig = (SIGSELECT*)receive_w_tmo(tmo,sigsel); + printf("%s:%d 0x%x got ",file,line,current_process()); + if (sig == NULL) + printf("TIMEOUT\n"); + else + printf("0x%x from 0x%x\n",*sig,sender((union SIGNAL**)(&sig))); + } + + return (union SIGNAL*)sig; +} + +#define receive_w_tmo(tmo,sigsel) erts_ose_sys_receive_w_tmo(tmo,sigsel, \ + __FILE__,__LINE__) + +static union SIGNAL *erts_ose_sys_receive_fsem(OSTIME tmo,SIGSELECT *sigsel, + OSFSEMVAL fsem, + char *file,int line) { + SIGSELECT *sig; + int i; + if (tmo == 0) { + sig = (SIGSELECT*)receive_fsem(tmo,sigsel,fsem); + if (sig != NULL && sig != OS_RCV_FSEM) { + printf("%s:%d 0x%x receive_fsem(0,{%d,",file,line,current_process(), + sigsel[0]); + for (i = 1; i < sigsel[0]; i++) + printf("0x%x, ",sigsel[i]); + if (sigsel[0] != 0) + printf("0x%x",sigsel[i]); + printf("},%d)\n",fsem); + printf("%s:%d 0x%x got 0x%x from 0x%x\n",file,line,current_process(), + *sig,sender((union SIGNAL**)(&sig))); + } + } else { + printf("%s:%d 0x%x receive_fsem(%u,{%d,",file,line,current_process(),tmo, + sigsel[0]); + for (i = 1; i < sigsel[0]; i++) + printf("0x%x, ",sigsel[i]); + if (sigsel[0] != 0) + printf("0x%x",sigsel[i]); + printf("},%d)\n",fsem); + sig = (SIGSELECT*)receive_fsem(tmo,sigsel,fsem); + printf("%s:%d 0x%x got ",file,line,current_process()); + if (sig == NULL) + printf("TIMEOUT\n"); + else if (sig == OS_RCV_FSEM) + printf("FSEM\n"); + else + printf("0x%x from 0x%x\n",*sig,sender((union SIGNAL**)(&sig))); + } + + return (union SIGNAL*)sig; +} + +#define receive_fsem(tmo,sigsel,fsem) \ + erts_ose_sys_receive_fsem(tmo,sigsel,fsem,__FILE__,__LINE__) +*/ +#endif /* _ERL_OSE_SYS_H */ diff --git a/erts/emulator/sys/ose/erl_ose_sys_ddll.c b/erts/emulator/sys/ose/erl_ose_sys_ddll.c new file mode 100644 index 0000000000..ebd80deeaf --- /dev/null +++ b/erts/emulator/sys/ose/erl_ose_sys_ddll.c @@ -0,0 +1,126 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2006-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* + * Interface functions to the dynamic linker using dl* functions. + * (No support in OSE, we use static linkage instead) + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "erl_vm.h" +#include "global.h" + + +void erl_sys_ddll_init(void) { +} + +/* + * Open a shared object + */ +int erts_sys_ddll_open(const char *full_name, void **handle, ErtsSysDdllError* err) +{ + return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY; +} + +int erts_sys_ddll_open_noext(char *dlname, void **handle, ErtsSysDdllError* err) +{ + return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY; +} + +/* + * Find a symbol in the shared object + */ +int erts_sys_ddll_sym2(void *handle, const char *func_name, void **function, + ErtsSysDdllError* err) +{ + return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY; +} + +/* XXX:PaN These two will be changed with new driver interface! */ + +/* + * Load the driver init function, might appear under different names depending on object arch... + */ + +int erts_sys_ddll_load_driver_init(void *handle, void **function) +{ + void *fn; + int res; + if ((res = erts_sys_ddll_sym2(handle, "driver_init", &fn, NULL)) != ERL_DE_NO_ERROR) { + res = erts_sys_ddll_sym2(handle, "_driver_init", &fn, NULL); + } + if (res == ERL_DE_NO_ERROR) { + *function = fn; + } + return res; +} + +int erts_sys_ddll_load_nif_init(void *handle, void **function, ErtsSysDdllError* err) +{ + void *fn; + int res; + if ((res = erts_sys_ddll_sym2(handle, "nif_init", &fn, err)) != ERL_DE_NO_ERROR) { + res = erts_sys_ddll_sym2(handle, "_nif_init", &fn, err); + } + if (res == ERL_DE_NO_ERROR) { + *function = fn; + } + return res; +} + +/* + * Call the driver_init function, whatever it's really called, simple on unix... +*/ +void *erts_sys_ddll_call_init(void *function) { + void *(*initfn)(void) = function; + return (*initfn)(); +} +void *erts_sys_ddll_call_nif_init(void *function) { + return erts_sys_ddll_call_init(function); +} + + + +/* + * Close a chared object + */ +int erts_sys_ddll_close2(void *handle, ErtsSysDdllError* err) +{ + return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY; +} + + +/* + * Return string that describes the (current) error + */ +char *erts_sys_ddll_error(int code) +{ + return "Unspecified error"; +} + +void erts_sys_ddll_free_error(ErtsSysDdllError* err) +{ + if (err->str != NULL) { + erts_free(ERTS_ALC_T_DDLL_TMP_BUF, err->str); + } +} diff --git a/erts/emulator/sys/ose/erl_poll.c b/erts/emulator/sys/ose/erl_poll.c new file mode 100644 index 0000000000..ca1ed6e53a --- /dev/null +++ b/erts/emulator/sys/ose/erl_poll.c @@ -0,0 +1,774 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2006-2012. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +/* + * Description: Poll interface suitable for ERTS on OSE with or without + * SMP support. + * + * The interface is currently implemented using: + * - receive + receive_fsem + * + * Author: Lukas Larsson + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "erl_thr_progress.h" +#include "erl_driver.h" +#include "erl_alloc.h" +#include "erl_poll.h" + +#define NOFILE 4096 + +/* + * Some debug macros + */ + +/* #define HARDDEBUG +#define HARDTRACE*/ +#ifdef HARDDEBUG +#ifdef HARDTRACE +#define HARDTRACEF(X, ...) { fprintf(stderr, X, __VA_ARGS__); fprintf(stderr,"\r\n"); } +#else +#define HARDTRACEF(...) +#endif + +#else +#define HARDTRACEF(X,...) +#define HARDDEBUGF(...) +#endif + +#if 0 +#define ERTS_POLL_DEBUG_PRINT +#endif + +#if defined(DEBUG) && 0 +#define HARD_DEBUG +#endif + +# define SEL_ALLOC erts_alloc +# define SEL_REALLOC realloc_wrap +# define SEL_FREE erts_free + +#ifdef ERTS_SMP + +#define ERTS_POLLSET_LOCK(PS) \ + erts_smp_mtx_lock(&(PS)->mtx) +#define ERTS_POLLSET_UNLOCK(PS) \ + erts_smp_mtx_unlock(&(PS)->mtx) + +#else + +#define ERTS_POLLSET_LOCK(PS) +#define ERTS_POLLSET_UNLOCK(PS) + +#endif + +/* + * --- Data types ------------------------------------------------------------ + */ + +union SIGNAL { + SIGSELECT sig_no; +}; + +typedef struct erts_sigsel_item_ ErtsSigSelItem; + +struct erts_sigsel_item_ { + ErtsSigSelItem *next; + ErtsSysFdType fd; + ErtsPollEvents events; +}; + +typedef struct erts_sigsel_info_ ErtsSigSelInfo; + +struct erts_sigsel_info_ { + ErtsSigSelInfo *next; + SIGSELECT signo; + ErlDrvOseEventId (*decode)(union SIGNAL* sig); + ErtsSigSelItem *fds; +}; + +struct ErtsPollSet_ { + SIGSELECT *sigs; + ErtsSigSelInfo *info; + Uint sig_count; + Uint item_count; + PROCESS interrupt; + erts_atomic32_t wakeup_state; + erts_smp_atomic32_t timeout; +#ifdef ERTS_SMP + erts_smp_mtx_t mtx; +#endif +}; + +static int max_fds = -1; + +#define ERTS_POLL_NOT_WOKEN ((erts_aint32_t) (1 << 0)) +#define ERTS_POLL_WOKEN_INTR ((erts_aint32_t) (1 << 1)) +#define ERTS_POLL_WOKEN_TIMEDOUT ((erts_aint32_t) (1 << 2)) +#define ERTS_POLL_WOKEN_IO_READY ((erts_aint32_t) (1 << 3)) +#define ERTS_POLL_SLEEPING ((erts_aint32_t) (1 << 4)) + +/* signal list prototypes */ +static ErtsSigSelInfo *get_sigsel_info(ErtsPollSet ps, SIGSELECT signo); +static ErtsSigSelItem *get_sigsel_item(ErtsPollSet ps, ErtsSysFdType fd); +static ErtsSigSelInfo *add_sigsel_info(ErtsPollSet ps, ErtsSysFdType fd, + ErlDrvOseEventId (*decode)(union SIGNAL* sig)); +static ErtsSigSelItem *add_sigsel_item(ErtsPollSet ps, ErtsSysFdType fd, + ErlDrvOseEventId (*decode)(union SIGNAL* sig)); +static int del_sigsel_info(ErtsPollSet ps, ErtsSigSelInfo *info); +static int del_sigsel_item(ErtsPollSet ps, ErtsSigSelItem *item); +static int update_sigsel(ErtsPollSet ps); + +static ErtsSigSelInfo * +get_sigsel_info(ErtsPollSet ps, SIGSELECT signo) { + ErtsSigSelInfo *curr = ps->info; + while (curr != NULL) { + if (curr->signo == signo) + return curr; + curr = curr->next; + } + return NULL; +} + +static ErtsSigSelItem * +get_sigsel_item(ErtsPollSet ps, ErtsSysFdType fd) { + ErtsSigSelInfo *info = get_sigsel_info(ps,fd->signo); + ErtsSigSelItem *curr; + + if (info == NULL) + return NULL; + + curr = info->fds; + + while (curr != NULL) { + if (curr->fd->id == fd->id) { + ASSERT(curr->fd->signo == fd->signo); + return curr; + } + curr = curr->next; + } + return NULL; +} + +static ErtsSigSelInfo * +add_sigsel_info(ErtsPollSet ps, ErtsSysFdType fd, + ErlDrvOseEventId (*decode)(union SIGNAL* sig)) { + ErtsSigSelInfo *info = SEL_ALLOC(ERTS_ALC_T_POLLSET, + sizeof(ErtsSigSelInfo)); + info->next = ps->info; + info->fds = NULL; + info->signo = fd->signo; + info->decode = decode; + ps->info = info; + ps->sig_count++; + return info; +} + +static ErtsSigSelItem * +add_sigsel_item(ErtsPollSet ps, ErtsSysFdType fd, + ErlDrvOseEventId (*decode)(union SIGNAL* sig)) { + ErtsSigSelInfo *info = get_sigsel_info(ps,fd->signo); + ErtsSigSelItem *item = SEL_ALLOC(ERTS_ALC_T_POLLSET, + sizeof(ErtsSigSelItem)); + if (info == NULL) + info = add_sigsel_info(ps, fd, decode); + if (info->decode != decode) { + erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); + erts_dsprintf(dsbufp, "erts_poll_control() inconsistency: multiple resolve_signal functions for same signal (%d)\n", + fd->signo); + erts_send_error_to_logger_nogl(dsbufp); + } + ASSERT(info->decode == decode); + item->next = info->fds; + item->fd = fd; + item->events = 0; + info->fds = item; + ps->item_count++; + return item; +} + +static int del_sigsel_info(ErtsPollSet ps, ErtsSigSelInfo *info) { + ErtsSigSelInfo *curr, *prev; + + if (ps->info == info) { + ps->info = ps->info->next; + } else { + curr = ps->info->next; + prev = ps->info; + + while (curr != info) { + if (curr == NULL) + return 1; + prev = curr; + curr = curr->next; + } + prev->next = curr->next; + } + + ps->sig_count--; + SEL_FREE(ERTS_ALC_T_POLLSET, info); + return 0; +} + +static int del_sigsel_item(ErtsPollSet ps, ErtsSigSelItem *item) { + ErtsSigSelInfo *info = get_sigsel_info(ps,item->fd->signo); + ErtsSigSelItem *curr, *prev; + + ps->item_count--; + ASSERT(ps->item_count >= 0); + + if (info->fds == item) { + info->fds = info->fds->next; + SEL_FREE(ERTS_ALC_T_POLLSET,item); + if (info->fds == NULL) + return del_sigsel_info(ps,info); + return 0; + } + + curr = info->fds->next; + prev = info->fds; + + while (curr != item) { + if (curr == NULL) { + /* We did not find an item to delete so we have to + * increment item count again. + */ + ps->item_count++; + return 1; + } + prev = curr; + curr = curr->next; + } + prev->next = curr->next; + SEL_FREE(ERTS_ALC_T_POLLSET,item); + return 0; +} + +#ifdef ERTS_SMP + +static void update_redir_tables(ErtsPollSet ps) { + struct OS_redir_entry *redir_table; + PROCESS sched_1 = ERTS_SCHEDULER_IX(0)->tid.id; + int i; + redir_table = SEL_ALLOC(ERTS_ALC_T_POLLSET, + sizeof(struct OS_redir_entry)*(ps->sig_count+1)); + + redir_table[0].sig = ps->sig_count+1; + redir_table[0].pid = 0; + + for (i = 1; i < ps->sig_count+1; i++) { + redir_table[i].sig = ps->sigs[i]; + redir_table[i].pid = sched_1; + } + + for (i = 1; i < erts_no_schedulers; i++) { + ErtsSchedulerData *esdp = ERTS_SCHEDULER_IX(i); + set_redirection(esdp->tid.id,redir_table); + } + + SEL_FREE(ERTS_ALC_T_POLLSET,redir_table); +} + +#endif + +static int update_sigsel(ErtsPollSet ps) { + ErtsSigSelInfo *info = ps->info; + + int i; + + if (ps->sigs != NULL) + SEL_FREE(ERTS_ALC_T_POLLSET,ps->sigs); + + if (ps->sig_count == 0) { + /* If there are no signals we place a non-valid signal to make sure that + * we do not trigger on a any unrelated signals which are sent to the + * process. + */ + ps->sigs = SEL_ALLOC(ERTS_ALC_T_POLLSET,sizeof(SIGSELECT)*(2)); + ps->sigs[0] = 1; + ps->sigs[1] = ERTS_SIGNAL_INVALID; + return 0; + } + + ps->sigs = SEL_ALLOC(ERTS_ALC_T_POLLSET,sizeof(SIGSELECT)*(ps->sig_count+1)); + ps->sigs[0] = ps->sig_count; + + for (i = 1; info != NULL; i++, info = info->next) + ps->sigs[i] = info->signo; + +#ifdef ERTS_SMP + update_redir_tables(ps); +#endif + + return 0; +} + +static ERTS_INLINE void +wake_poller(ErtsPollSet ps) +{ + erts_aint32_t wakeup_state; + + ERTS_THR_MEMORY_BARRIER; + wakeup_state = erts_atomic32_read_nob(&ps->wakeup_state); + while (wakeup_state != ERTS_POLL_WOKEN_IO_READY + && wakeup_state != ERTS_POLL_WOKEN_INTR) { + erts_aint32_t act = erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_WOKEN_INTR, + wakeup_state); + if (act == wakeup_state) { + wakeup_state = act; + break; + } + wakeup_state = act; + } + if (wakeup_state == ERTS_POLL_SLEEPING) { + /* + * Since we don't know the internals of signal_fsem() we issue + * a memory barrier as a safety precaution ensuring that + * the store we just made to wakeup_state wont be reordered + * with loads in signal_fsem(). + */ + ERTS_THR_MEMORY_BARRIER; + signal_fsem(ps->interrupt); + } +} + +static ERTS_INLINE void +reset_interrupt(ErtsPollSet ps) +{ + /* We need to keep io-ready if set */ + erts_aint32_t wakeup_state = erts_atomic32_read_nob(&ps->wakeup_state); + while (wakeup_state != ERTS_POLL_NOT_WOKEN && + wakeup_state != ERTS_POLL_SLEEPING) { + erts_aint32_t act = erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_NOT_WOKEN, + wakeup_state); + if (wakeup_state == act) + break; + wakeup_state = act; + } + ERTS_THR_MEMORY_BARRIER; +} + +static ERTS_INLINE void +set_interrupt(ErtsPollSet ps) +{ + wake_poller(ps); +} + +void erts_poll_interrupt(ErtsPollSet ps,int set) { + HARDTRACEF("erts_poll_interrupt called!\n"); + + if (!set) + reset_interrupt(ps); + else + set_interrupt(ps); + +} + +void erts_poll_interrupt_timed(ErtsPollSet ps,int set,erts_short_time_t msec) { + HARDTRACEF("erts_poll_interrupt_timed called!\n"); + + if (!set) + reset_interrupt(ps); + else if (erts_smp_atomic32_read_acqb(&ps->timeout) > (erts_aint32_t) msec) + set_interrupt(ps); +} + +ErtsPollEvents erts_poll_control(ErtsPollSet ps, ErtsSysFdType fd, + ErtsPollEvents pe, int on, int* do_wake) { + ErtsSigSelItem *curr; + ErtsPollEvents new_events; + int old_sig_count; + + HARDTRACEF( + "%ux: In erts_poll_control, fd = %d, pe = %d, on = %d, *do_wake = %d, curr = 0x%xu", + ps, fd, pe, on, do_wake, curr); + + ERTS_POLLSET_LOCK(ps); + + if (on && (pe & ERTS_POLL_EV_IN) && (pe & ERTS_POLL_EV_OUT)) { + /* Check to make sure both in and out are not used at the same time */ + new_events = ERTS_POLL_EV_NVAL; + goto done; + } + + curr = get_sigsel_item(ps, fd); + old_sig_count = ps->sig_count; + + if (curr == NULL && on) { + curr = add_sigsel_item(ps, fd, fd->resolve_signal); + } else if (curr == NULL && !on) { + new_events = ERTS_POLL_EV_NVAL; + goto done; + } + + new_events = curr->events; + + if (pe == 0) { + *do_wake = 0; + goto done; + } + + if (on) { + new_events |= pe; + curr->events = new_events; + } else { + new_events &= ~pe; + curr->events = new_events; + if (new_events == 0 && del_sigsel_item(ps, curr)) { + new_events = ERTS_POLL_EV_NVAL; + goto done; + } + } + + if (ps->sig_count != old_sig_count) { + if (update_sigsel(ps)) + new_events = ERTS_POLL_EV_NVAL; + } +done: + ERTS_POLLSET_UNLOCK(ps); + HARDTRACEF("%ux: Out erts_poll_control", ps); + return new_events; +} + +int erts_poll_wait(ErtsPollSet ps, + ErtsPollResFd pr[], + int *len, + SysTimeval *utvp) { + int res = ETIMEDOUT, no_fds, currid = 0; + OSTIME timeout; + union SIGNAL *sig; + // HARDTRACEF("%ux: In erts_poll_wait",ps); + if (ps->interrupt == (PROCESS)0) + ps->interrupt = current_process(); + + ASSERT(current_process() == ps->interrupt); + ASSERT(get_fsem(current_process()) == 0); + ASSERT(erts_atomic32_read_nob(&ps->wakeup_state) & + (ERTS_POLL_NOT_WOKEN | ERTS_POLL_WOKEN_INTR)); + /* Max no of spots avable in pr */ + no_fds = *len; + + *len = 0; + + ASSERT(utvp); + + /* erts_printf("Entering erts_poll_wait(), timeout=%d\n", + (int) utvp->tv_sec*1000 + utvp->tv_usec/1000); */ + + timeout = utvp->tv_sec*1000 + utvp->tv_usec/1000; + + if (timeout > ((time_t) ERTS_AINT32_T_MAX)) + timeout = ERTS_AINT32_T_MAX; + erts_smp_atomic32_set_relb(&ps->timeout, (erts_aint32_t) timeout); + + while (currid < no_fds) { + if (timeout > 0) { + erts_aint32_t act = erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_SLEEPING, + ERTS_POLL_NOT_WOKEN); + if (act == ERTS_POLL_NOT_WOKEN) { +#ifdef ERTS_SMP + erts_thr_progress_prepare_wait(NULL); +#endif + sig = receive_fsem(timeout, ps->sigs, 1); +#ifdef ERTS_SMP + erts_thr_progress_finalize_wait(NULL); +#endif + } else { + ASSERT(act == ERTS_POLL_WOKEN_INTR); + sig = OS_RCV_FSEM; + } + } else + sig = receive_w_tmo(0, ps->sigs); + + if (sig == NULL) { + if (timeout > 0) { + erts_aint32_t act = erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_WOKEN_TIMEDOUT, + ERTS_POLL_SLEEPING); + if (act == ERTS_POLL_WOKEN_INTR) + /* Restore fsem as it was signaled but we got a timeout */ + wait_fsem(1); + } else + erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_WOKEN_TIMEDOUT, + ERTS_POLL_NOT_WOKEN); + break; + } else if (sig == OS_RCV_FSEM) { + ASSERT(erts_atomic32_read_nob(&ps->wakeup_state) == ERTS_POLL_WOKEN_INTR); + break; + } + { + ErtsSigSelInfo *info = get_sigsel_info(ps, sig->sig_no); + struct erts_sys_fd_type fd = { sig->sig_no, info->decode(sig) }; + ErtsSigSelItem *item = get_sigsel_item(ps, &fd); + + ASSERT(sig); + if (currid == 0 && timeout > 0) { + erts_aint32_t act = erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_WOKEN_IO_READY, + ERTS_POLL_SLEEPING); + if (act == ERTS_POLL_WOKEN_INTR) { + /* Restore fsem as it was signaled but we got a msg */ + wait_fsem(1); + act = erts_atomic32_cmpxchg_nob(&ps->wakeup_state, + ERTS_POLL_WOKEN_IO_READY, + ERTS_POLL_WOKEN_INTR); + } + } else if (currid == 0) { + erts_atomic32_set_nob(&ps->wakeup_state, + ERTS_POLL_WOKEN_IO_READY); + } + + if (item == NULL) { + erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); + erts_dsprintf( + dsbufp, + "erts_poll_wait() failed: found unkown signal id %d (signo %u) " + "(curr_proc 0x%x)\n", + fd.id, fd.signo, current_process()); + erts_send_error_to_logger_nogl(dsbufp); + timeout = 0; + ASSERT(0); + } else { + int i; + struct erts_sys_fd_type *fd = NULL; + ErtsPollOseMsgList *tl,*new; + + /* Check if this fd has already been triggered by a previous signal */ + for (i = 0; i < currid;i++) { + if (pr[i].fd == item->fd) { + fd = pr[i].fd; + pr[i].events |= item->events; + break; + } + } + + /* First time this fd is triggered */ + if (fd == NULL) { + pr[currid].fd = item->fd; + pr[currid].events = item->events; + fd = item->fd; + timeout = 0; + currid++; + } + + /* Insert new signal in approriate list */ + new = erts_alloc(ERTS_ALC_T_FD_SIG_LIST,sizeof(ErtsPollOseMsgList)); + new->next = NULL; + new->data = sig; + + ethr_mutex_lock(&fd->mtx); + tl = fd->msgs; + + if (tl == NULL) { + fd->msgs = new; + } else { + while (tl->next != NULL) + tl = tl->next; + tl->next = new; + } + ethr_mutex_unlock(&fd->mtx); + } + + } + } + + { + erts_aint32_t wakeup_state = erts_atomic32_read_nob(&ps->wakeup_state); + + switch (wakeup_state) { + case ERTS_POLL_WOKEN_IO_READY: + res = 0; + break; + case ERTS_POLL_WOKEN_INTR: + res = EINTR; + break; + case ERTS_POLL_WOKEN_TIMEDOUT: + res = ETIMEDOUT; + break; + case ERTS_POLL_NOT_WOKEN: + /* This happens when we get an invalid signal only */ + res = EINVAL; + break; + default: + res = 0; + erl_exit(ERTS_ABORT_EXIT, + "%s:%d: Internal error: Invalid wakeup_state=%d\n", + __FILE__, __LINE__, (int) wakeup_state); + } + } + + erts_atomic32_set_nob(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN); + erts_smp_atomic32_set_nob(&ps->timeout, ERTS_AINT32_T_MAX); + + *len = currid; + + // HARDTRACEF("%ux: Out erts_poll_wait",ps); + return res; +} + +int erts_poll_max_fds(void) +{ + + HARDTRACEF("In/Out erts_poll_max_fds -> %d",max_fds); + return max_fds; +} + +void erts_poll_info(ErtsPollSet ps, + ErtsPollInfo *pip) +{ + Uint size = 0; + Uint num_events = 0; + + size += sizeof(struct ErtsPollSet_); + size += sizeof(ErtsSigSelInfo)*ps->sig_count; + size += sizeof(ErtsSigSelItem)*ps->item_count; + size += sizeof(SIGSELECT)*(ps->sig_count+1); + + pip->primary = "receive_fsem"; + + pip->fallback = NULL; + + pip->kernel_poll = NULL; + + pip->memory_size = size; + + pip->poll_set_size = num_events; + + pip->fallback_poll_set_size = 0; + + pip->lazy_updates = 0; + + pip->pending_updates = 0; + + pip->batch_updates = 0; + + pip->concurrent_updates = 0; + + + pip->max_fds = erts_poll_max_fds(); + HARDTRACEF("%ux: Out erts_poll_info",ps); + +} + +ErtsPollSet erts_poll_create_pollset(void) +{ + ErtsPollSet ps = SEL_ALLOC(ERTS_ALC_T_POLLSET, + sizeof(struct ErtsPollSet_)); + + ps->sigs = NULL; + ps->sig_count = 0; + ps->item_count = 0; + ps->info = NULL; + ps->interrupt = (PROCESS)0; + erts_atomic32_init_nob(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN); + erts_smp_atomic32_init_nob(&ps->timeout, ERTS_AINT32_T_MAX); +#ifdef ERTS_SMP + erts_smp_mtx_init(&ps->mtx, "pollset"); +#endif + update_sigsel(ps); + HARDTRACEF("%ux: Out erts_poll_create_pollset",ps); + return ps; +} + +void erts_poll_destroy_pollset(ErtsPollSet ps) +{ + ErtsSigSelInfo *info; + for (info = ps->info; ps->info != NULL; info = ps->info, ps->info = ps->info->next) { + ErtsSigSelItem *item; + for (item = info->fds; info->fds != NULL; item = info->fds, info->fds = info->fds->next) + SEL_FREE(ERTS_ALC_T_POLLSET, item); + SEL_FREE(ERTS_ALC_T_POLLSET, info); + } + + SEL_FREE(ERTS_ALC_T_POLLSET,ps->sigs); + +#ifdef ERTS_SMP + erts_smp_mtx_destroy(&ps->mtx); +#endif + + SEL_FREE(ERTS_ALC_T_POLLSET,ps); +} + +void erts_poll_init(void) +{ + HARDTRACEF("In %s", __FUNCTION__); + max_fds = 256; + + HARDTRACEF("Out %s", __FUNCTION__); +} + + +/* OSE driver functions */ + +union SIGNAL *erl_drv_ose_get_signal(ErlDrvEvent drv_ev) { + struct erts_sys_fd_type *ev = (struct erts_sys_fd_type *)drv_ev; + ethr_mutex_lock(&ev->mtx); + if (ev->msgs == NULL) { + ethr_mutex_unlock(&ev->mtx); + return NULL; + } else { + ErtsPollOseMsgList *msg = ev->msgs; + union SIGNAL *sig = (union SIGNAL*)msg->data; + ASSERT(msg->data); + ev->msgs = msg->next; + ethr_mutex_unlock(&ev->mtx); + erts_free(ERTS_ALC_T_FD_SIG_LIST,msg); + return sig; + } +} + +ErlDrvEvent +erl_drv_ose_event_alloc(SIGSELECT signo, ErlDrvOseEventId id, + ErlDrvOseEventId (*resolve_signal)(union SIGNAL *sig), void *extra) { + struct erts_sys_fd_type *ev = erts_alloc(ERTS_ALC_T_DRV_EV, + sizeof(struct erts_sys_fd_type)); + ev->signo = signo; + ev->extra = extra; + ev->id = id; + ev->msgs = NULL; + ev->resolve_signal = resolve_signal; + ethr_mutex_init(&ev->mtx); + return (ErlDrvEvent)ev; +} + +void erl_drv_ose_event_free(ErlDrvEvent drv_ev) { + struct erts_sys_fd_type *ev = (struct erts_sys_fd_type *)drv_ev; + ASSERT(ev->msgs == NULL); + ethr_mutex_destroy(&ev->mtx); + erts_free(ERTS_ALC_T_DRV_EV,ev); +} + +void erl_drv_ose_event_fetch(ErlDrvEvent drv_ev, SIGSELECT *signo, + ErlDrvOseEventId *id, void **extra) { + struct erts_sys_fd_type *ev = (struct erts_sys_fd_type *)drv_ev; + if (signo) + *signo = ev->signo; + if (extra) + *extra = ev->extra; + if (id) + *id = ev->id; +} diff --git a/erts/emulator/sys/ose/erts.sig b/erts/emulator/sys/ose/erts.sig new file mode 100644 index 0000000000..78b883ee6c --- /dev/null +++ b/erts/emulator/sys/ose/erts.sig @@ -0,0 +1,17 @@ +#ifndef ERTS_OSE_SIGNALS +#define ERTS_OSE_SIGNALS + +#ifndef ERTS_OSE_SIGNAL_BASE +#define ERTS_OSE_SIGNAL_BASE 0x01900280 +#endif + +#define ERTS_SIGNAL_INVALID ERTS_OSE_SIGNAL_BASE +#define ERTS_SIGNAL_FD_DRV_CONFIG ERTS_OSE_SIGNAL_BASE+1 +#define ERTS_SIGNAL_FD_DRV_ASYNC ERTS_OSE_SIGNAL_BASE+2 +#define ERTS_SIGNAL_OSE_DRV_ATTACH ERTS_OSE_SIGNAL_BASE+3 +#define ERTS_SIGNAL_OSE_DRV_HUNT ERTS_OSE_SIGNAL_BASE+4 + +#define ERTS_SIGNAL_RUN_ERL_SETUP ERTS_OSE_SIGNAL_BASE+100 +#define ERTS_SIGNAL_RUN_ERL_DAEMON ERTS_OSE_SIGNAL_BASE+101 + +#endif diff --git a/erts/emulator/sys/ose/gcc_4.4.3_lm_ppc.lcf b/erts/emulator/sys/ose/gcc_4.4.3_lm_ppc.lcf new file mode 100644 index 0000000000..a19d23facf --- /dev/null +++ b/erts/emulator/sys/ose/gcc_4.4.3_lm_ppc.lcf @@ -0,0 +1,182 @@ +/******************************************************************************* + * Copyright (C) 2013-2014 by Enea Software AB, + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************/ + +OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") +OUTPUT_ARCH("powerpc") +ENTRY("crt0_lm") +MEMORY +{ + rom : ORIGIN = 0x01000000, LENGTH = 0x01000000 + ram : ORIGIN = 0x02000000, LENGTH = 0x01000000 +} +PHDRS +{ + ph_conf PT_LOAD ; + ph_rom PT_LOAD ; + ph_ram PT_LOAD ; +} +SECTIONS +{ + .text : + { + *(.text_first) + *(.text) + *(.text.*) + *(.stub) + *(oscode) + *(.init*) + *(.fini*) + *(.gnu.warning) + *(.gnu.linkonce.t.*) + *(.glue_7t) + *(.glue_7) + } > rom :ph_rom = 0 + .ose_sfk_biosentry : + { + *(.ose_sfk_biosentry) + } > rom :ph_rom + .ctors : + { + __CTOR_LIST__ = .; + *(.ctors) + *(SORT(.ctors.*)) + __CTOR_END__ = .; + } > rom :ph_rom + .dtors : + { + __DTOR_LIST__ = .; + *(.dtors) + *(SORT(.dtors.*)) + __DTOR_END__ = .; + } > rom :ph_rom + OSESYMS : + { + *(.osesyms) + } > rom :ph_rom + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r.*) + } > rom :ph_rom + .eh_frame_hdr : + { + *(.eh_frame_hdr) + } > rom :ph_rom + .eh_frame : + { + __EH_FRAME_BEGIN__ = .; + *(.eh_frame) + LONG(0) + __EH_FRAME_END__ = .; + } > rom :ph_rom + .gcc_except_table : + { + *(.gcc_except_table .gcc_except_table.*) + } > rom :ph_rom + .sdata2 : + { + PROVIDE (_SDA2_BASE_ = .); + *(.sdata2) + *(.sdata2.*) + *(.gnu.linkonce.s2.*) + } > rom :ph_rom + .sbss2 : + { + *(.sbss2) + *(.sbss2.*) + *(.gnu.linkonce.sb2.*) + } > rom :ph_rom + LMCONF : + { + obj/?*?/ose_confd.o(.rodata) + *(LMCONF) + } > rom :ph_conf + .data : + { + LONG(0xDEADBABE) + *(.data) + *(.data.*) + *(.gnu.linkonce.d.*) + SORT(CONSTRUCTORS) + . = ALIGN(0x10); + } > ram :ph_ram = 0 + .sdata2 : + { + _SDA2_BASE_ = .; + *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) + }> ram :ph_ram + .sdata : + { + PROVIDE (_SDA_BASE_ = .); + *(.sdata) + *(.sdata.*) + *(.gnu.linkonce.s.*) + } > ram :ph_ram + .sbss : + { + *(.sbss) + *(.sbss.*) + *(.scommon) + *(.gnu.linkonce.sb.*) + } > ram :ph_ram + .bss (NOLOAD) : + { + *(.bss) + *(.bss.*) + *(COMMON) + *(.gnu.linkonce.b.*) + *(.osvars) + } > ram :ph_ram + .ignore (NOLOAD) : + { + *(.rel.dyn) + } > ram :ph_ram + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } +} +__OSESYMS_START = ADDR(OSESYMS); +__OSESYMS_END = ADDR(OSESYMS) + SIZEOF(OSESYMS); diff --git a/erts/emulator/sys/ose/gcc_4.6.3_lm_ppc.lcf b/erts/emulator/sys/ose/gcc_4.6.3_lm_ppc.lcf new file mode 100644 index 0000000000..3440c2961b --- /dev/null +++ b/erts/emulator/sys/ose/gcc_4.6.3_lm_ppc.lcf @@ -0,0 +1,242 @@ +/******************************************************************************* + * Copyright (C) 2013-2014 by Enea Software AB, + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************/ + +OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc") +OUTPUT_ARCH("powerpc") + +ENTRY("crt0_lm") + +/* Note: + * You may have to increase the length of the "rom" memory region and the + * origin and length of the "ram" memory region below depending on the size + * of the code and data in your load module. + */ + +MEMORY +{ + conf : ORIGIN = 0x00100000, LENGTH = 0x00030000 + rom : ORIGIN = 0x01000000, LENGTH = 0x01000000 + ram : ORIGIN = 0x03000000, LENGTH = 0x01000000 +} + +PHDRS +{ + ph_conf PT_LOAD ; + ph_rom PT_LOAD ; + ph_ram PT_LOAD ; +} + +SECTIONS +{ +/*--------------------------------------------------------------------------- + * Load module configuration area + *-------------------------------------------------------------------------*/ + + /* Load module configuration section. */ + LMCONF : + { + obj/?*?/ose_confd.o(.rodata) + *(LMCONF) + } > conf :ph_conf + +/*--------------------------------------------------------------------------- + * Read-only area + *-------------------------------------------------------------------------*/ + + /* Code section. */ + .text : + { + *(.text) + *(.text.*) + *(.stub) + *(oscode) + *(.init*) + *(.fini*) + *(.gnu.warning) + *(.gnu.linkonce.t.*) + } > rom :ph_rom = 0 + + /* OSE symbols section. */ + OSESYMS : + { + *(.osesyms) + } > rom :ph_rom + + /* Read-only data section. */ + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r.*) + } > rom :ph_rom + + /* C++ exception handling section. */ + .eh_frame : + { + __EH_FRAME_BEGIN__ = .; + *(.eh_frame) + LONG(0) + __EH_FRAME_END__ = .; + } > rom :ph_rom + + /* C++ exception handling section. */ + .gcc_except_table : + { + *(.gcc_except_table .gcc_except_table.*) + } > rom :ph_rom + + /* PowerPC EABI initialized read-only data section. */ + .sdata2 : + { + PROVIDE (_SDA2_BASE_ = .); + *(.sdata2) + *(.sdata2.*) + *(.gnu.linkonce.s2.*) + } > rom :ph_rom + + /* PowerPC EABI uninitialized read-only data section. */ + .sbss2 : + { + *(.sbss2) + *(.sbss2.*) + *(.gnu.linkonce.sb2.*) + } > rom :ph_rom + +/*--------------------------------------------------------------------------- + * Read-write area + *-------------------------------------------------------------------------*/ + + /*------------------------------------------------------------------- + * Initialized data (copied by PM) + *-----------------------------------------------------------------*/ + + /* Data section. */ + .data : + { + *(.data) + *(.data.*) + *(.gnu.linkonce.d.*) + SORT(CONSTRUCTORS) + } > ram :ph_ram + + /* C++ constructor section. */ + .ctors : + { + __CTOR_LIST__ = .; + *(.ctors) + *(SORT(.ctors.*)) + __CTOR_END__ = .; + } > ram :ph_ram + + /* C++ destructor section. */ + .dtors : + { + __DTOR_LIST__ = .; + *(.dtors) + *(SORT(.dtors.*)) + __DTOR_END__ = .; + } > ram :ph_ram + + + /* Small data section. */ + .sdata ALIGN(0x10) : + { + PROVIDE (_SDA_BASE_ = .); + *(.sdata) + *(.sdata.*) + *(.gnu.linkonce.s.*) + } > ram :ph_ram + + /*------------------------------------------------------------------- + * Uninitialized data (cleared by PM) + *-----------------------------------------------------------------*/ + + /* Small bss section. */ + .sbss : + { + *(.sbss) + *(.sbss.*) + *(.scommon) + *(.gnu.linkonce.sb.*) + } > ram :ph_ram + + /* Bss section. */ + .bss : + { + *(.bss) + *(.bss.*) + *(COMMON) + *(.gnu.linkonce.b.*) + } > ram :ph_ram + +/*--------------------------------------------------------------------------- + * Debug information + *-------------------------------------------------------------------------*/ + + /* + * Stabs debug sections. + */ + + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + + /* + * DWARF debug sections. + */ + + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } +} diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c new file mode 100644 index 0000000000..c892cc69c7 --- /dev/null +++ b/erts/emulator/sys/ose/sys.c @@ -0,0 +1,1755 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 1996-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif +#include "sys/time.h" +#include "time.h" +#include "sys/uio.h" +#include "termios.h" +#include "ctype.h" +#include "termios.h" + +#ifdef HAVE_FCNTL_H +#include "fcntl.h" +#endif + +#ifdef HAVE_SYS_IOCTL_H +#include "sys/ioctl.h" +#endif + +#define ERTS_WANT_BREAK_HANDLING +#define WANT_NONBLOCKING +#include "sys.h" +#include "erl_thr_progress.h" + +#ifdef USE_THREADS +#include "erl_threads.h" +#endif + +#include "erl_mseg.h" + +#include "unistd.h" +#include "efs.h" +#include "erl_printf.h" +#include "aio.h" +#include "pm.h" +#include "fcntl.h" + +/* Set the define to 1 to get some logging */ +#if 0 +#include "ramlog.h" +#define LOG(output) ramlog_printf output +#else +#define LOG(output) +#endif + +extern char **environ; +static erts_smp_rwmtx_t environ_rwmtx; +static PROCESS sig_proxy_pid = 0; + +#define MAX_VSIZE 16 /* Max number of entries allowed in an I/O + * vector sock_sendv(). + */ +/* + * Don't need global.h, but bif_table.h (included by bif.h), + * won't compile otherwise + */ +#include "global.h" +#include "bif.h" + +#include "erl_sys_driver.h" +#include "erl_check_io.h" +#include "erl_cpu_topology.h" + +/* The priority for reader/writer processes */ +#define FD_PROC_PRI get_pri(current_process()) + +typedef struct ErtsSysReportExit_ ErtsSysReportExit; +struct ErtsSysReportExit_ { + ErtsSysReportExit *next; + Eterm port; + int pid; + int ifd; + int ofd; + ErlDrvEvent attach_event; + ErlDrvEvent input_event; + ErlDrvEvent output_event; +}; + +/* This data is shared by these drivers - initialized by spawn_init() */ +static struct driver_data { + ErlDrvPort port_num; + int ofd; + int ifd; + int packet_bytes; + ErtsSysReportExit *report_exit; + int pid; + int alive; + int status; + ErlDrvEvent input_event; + ErlDrvEvent output_event; + struct aiocb aiocb; + FmHandle handle; + char *install_handle; +} *driver_data; /* indexed by fd */ + +struct async { + SIGSELECT signo; + ErlDrvTermData port; + ErlDrvTermData proc; + PROCESS spid; + PROCESS target; + Uint32 ref; +}; + +static ErtsSysReportExit *report_exit_list; +static ERTS_INLINE void report_exit_status(ErtsSysReportExit *rep, int status); + +extern int driver_interrupt(int, int); +extern void do_break(void); + +extern void erl_sys_args(int*, char**); + +/* The following two defs should probably be moved somewhere else */ + +extern void erts_sys_init_float(void); + +extern void erl_crash_dump(char* file, int line, char* fmt, ...); + +#define DIR_SEPARATOR_CHAR '/' + +#if defined(DEBUG) +#define ERL_BUILD_TYPE_MARKER ".debug" +#else /* opt */ +#define ERL_BUILD_TYPE_MARKER +#endif + +#define CHILD_SETUP_PROG_NAME "child_setup" ERL_BUILD_TYPE_MARKER + +#ifdef DEBUG +static int debug_log = 0; +#endif + +#ifdef ERTS_SMP +static erts_smp_atomic32_t have_prepared_crash_dump; +#define ERTS_PREPARED_CRASH_DUMP \ + ((int) erts_smp_atomic32_xchg_nob(&have_prepared_crash_dump, 1)) +#else +static volatile int have_prepared_crash_dump; +#define ERTS_PREPARED_CRASH_DUMP \ + (have_prepared_crash_dump++) +#endif + +static erts_smp_atomic_t sys_misc_mem_sz; + +#if defined(ERTS_SMP) +erts_mtx_t chld_stat_mtx; +#endif + +#if defined(ERTS_SMP) /* ------------------------------------------------- */ +#define CHLD_STAT_LOCK erts_mtx_lock(&chld_stat_mtx) +#define CHLD_STAT_UNLOCK erts_mtx_unlock(&chld_stat_mtx) + +#else /* ------------------------------------------------------------------- */ +#define CHLD_STAT_LOCK +#define CHLD_STAT_UNLOCK +static volatile int children_died; +#endif + +#define SET_AIO(REQ,FD,SIZE,BUFF) \ + memset(&(REQ),0,sizeof(REQ)); \ + (REQ).aio_fildes = FD; \ + (REQ).aio_offset = FM_POSITION_CURRENT; \ + (REQ).aio_nbytes = SIZE; \ + (REQ).aio_buf = BUFF; \ + (REQ).aio_sigevent.sigev_notify = SIGEV_NONE + +/* the first sizeof(struct aiocb *) bytes of the write buffer + * will contain the pointer to the aiocb struct, this needs + * to be freed between asynchronous writes. + * A write of 0 bytes is ignored. */ +#define WRITE_AIO(FD,SIZE,BUFF) do { \ + if (SIZE > 0) { \ + struct aiocb *write_req = driver_alloc(sizeof(struct aiocb)); \ + char *write_buff = driver_alloc((sizeof(char)*SIZE)+1+ \ + (sizeof(struct aiocb *))); \ + *(struct aiocb **)write_buff = (struct aiocb *)write_req; \ + write_buff += sizeof(struct aiocb *); \ + memcpy(write_buff,BUFF,SIZE+1); \ + SET_AIO(*write_req,FD,SIZE,write_buff); \ + aio_write(write_req); \ + } \ +} while(0) + +/* free the write_buffer and write_req + * created in the WRITE_AIO() request macro */ +#define FREE_AIO(ptr) do { \ + struct aiocb *aiocb_ptr; \ + char *buffer_ptr; \ + aiocb_ptr = *(struct aiocb **)((ptr)-sizeof(struct aiocb *)); \ + buffer_ptr = (((char*)ptr)-sizeof(struct aiocb *)); \ + driver_free(aiocb_ptr); \ + driver_free(buffer_ptr); \ +} while(0) + +/* When we have several schedulers, we need to make sure + * that scheduler issuing aio_dispatch() is the owner on the signal */ +#define DISPATCH_AIO(sig) do { \ + restore(sig); \ + aio_dispatch(sig); \ + } while(0) + + +/* debug print macros */ +#define DEBUG_RES 0 + +#ifdef DEBUG_RES +#define DEBUG_CHECK_RES(actual, expected) \ + do { \ + if (actual != expected ) { \ + ramlog_printf("Result check failed" \ + " got: 0x%08x expected:0x%08x\nat: %s:%d\n", \ + actual, expected, __FILE__, __LINE__); \ + abort(); /* This might perhaps be too harsh? */ \ + } \ + } while(0) +#else +#define DEBUG_CHECK_RES +#endif + +static struct fd_data { + char pbuf[4]; /* hold partial packet bytes */ + int psz; /* size of pbuf */ + char *buf; + char *cpos; + int sz; + int remain; /* for input on fd */ +} *fd_data; /* indexed by fd */ + +/********************* General functions ****************************/ + +/* This is used by both the drivers and general I/O, must be set early */ +static int max_files = -1; + +/* + * a few variables used by the break handler + */ +#ifdef ERTS_SMP +erts_smp_atomic32_t erts_break_requested; +#define ERTS_SET_BREAK_REQUESTED \ + erts_smp_atomic32_set_nob(&erts_break_requested, (erts_aint32_t) 1) +#define ERTS_UNSET_BREAK_REQUESTED \ + erts_smp_atomic32_set_nob(&erts_break_requested, (erts_aint32_t) 0) +#else +volatile int erts_break_requested = 0; +#define ERTS_SET_BREAK_REQUESTED (erts_break_requested = 1) +#define ERTS_UNSET_BREAK_REQUESTED (erts_break_requested = 0) +#endif +/* set early so the break handler has access to initial mode */ +static struct termios initial_tty_mode; +static int replace_intr = 0; +/* assume yes initially, ttsl_init will clear it */ +int using_oldshell = 1; +static PROCESS get_signal_proxy_pid(void); + +static void +init_check_io(void) +{ + erts_init_check_io(); + max_files = erts_check_io_max_files(); +} + +#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT +#define ERTS_CHK_IO_AS_INTR() erts_check_io_async_sig_interrupt() +#else +#define ERTS_CHK_IO_AS_INTR() erts_check_io_interrupt(1) +#endif +#define ERTS_CHK_IO_INTR erts_check_io_interrupt +#define ERTS_CHK_IO_INTR_TMD erts_check_io_interrupt_timed +#define ERTS_CHK_IO erts_check_io +#define ERTS_CHK_IO_SZ erts_check_io_size + + +void +erts_sys_schedule_interrupt(int set) +{ + ERTS_CHK_IO_INTR(set); +} + +#ifdef ERTS_SMP +void +erts_sys_schedule_interrupt_timed(int set, erts_short_time_t msec) +{ + ERTS_CHK_IO_INTR_TMD(set, msec); +} +#endif + +Uint +erts_sys_misc_mem_sz(void) +{ + Uint res = ERTS_CHK_IO_SZ(); + res += erts_smp_atomic_read_mb(&sys_misc_mem_sz); + return res; +} + +/* + * reset the terminal to the original settings on exit + */ +void sys_tty_reset(int exit_code) +{ + if (using_oldshell && !replace_intr) { + SET_BLOCKING(0); + } + else if (isatty(0)) { + tcsetattr(0,TCSANOW,&initial_tty_mode); + } +} + +#ifdef USE_THREADS + +typedef struct { + int sched_bind_data; +} erts_thr_create_data_t; + +/* + * thr_create_prepare() is called in parent thread before thread creation. + * Returned value is passed as argument to thr_create_cleanup(). + */ +static void * +thr_create_prepare(void) +{ + erts_thr_create_data_t *tcdp; + + tcdp = erts_alloc(ERTS_ALC_T_TMP, sizeof(erts_thr_create_data_t)); + + tcdp->sched_bind_data = erts_sched_bind_atthrcreate_prepare(); + + return (void *) tcdp; +} + + +/* thr_create_cleanup() is called in parent thread after thread creation. */ +static void +thr_create_cleanup(void *vtcdp) +{ + erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp; + + erts_sched_bind_atthrcreate_parent(tcdp->sched_bind_data); + + erts_free(ERTS_ALC_T_TMP, tcdp); +} + +static void +thr_create_prepare_child(void *vtcdp) +{ + erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp; + +#ifdef ERTS_ENABLE_LOCK_COUNT + erts_lcnt_thread_setup(); +#endif + + erts_sched_bind_atthrcreate_child(tcdp->sched_bind_data); +} + +#endif /* #ifdef USE_THREADS */ + +void +erts_sys_pre_init(void) +{ + erts_printf_add_cr_to_stdout = 1; + erts_printf_add_cr_to_stderr = 1; +#ifdef USE_THREADS + { + erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER; + + eid.thread_create_child_func = thr_create_prepare_child; + /* Before creation in parent */ + eid.thread_create_prepare_func = thr_create_prepare; + /* After creation in parent */ + eid.thread_create_parent_func = thr_create_cleanup, + + erts_thr_init(&eid); + + report_exit_list = NULL; + +#ifdef ERTS_ENABLE_LOCK_COUNT + erts_lcnt_init(); +#endif + +#if defined(ERTS_SMP) + erts_mtx_init(&chld_stat_mtx, "child_status"); +#endif + } +#ifdef ERTS_SMP + erts_smp_atomic32_init_nob(&erts_break_requested, 0); + erts_smp_atomic32_init_nob(&have_prepared_crash_dump, 0); +#else + erts_break_requested = 0; + have_prepared_crash_dump = 0; +#endif +#if !defined(ERTS_SMP) + children_died = 0; +#endif +#endif /* USE_THREADS */ + erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0); +} + +void +erl_sys_init(void) +{ + +#ifdef USE_SETLINEBUF + setlinebuf(stdout); +#else + setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ); +#endif + + erts_sys_init_float(); + + /* we save this so the break handler can set and reset it properly */ + /* also so that we can reset on exit (break handler or not) */ + if (isatty(0)) { + tcgetattr(0,&initial_tty_mode); + } + tzset(); /* Required at least for NetBSD with localtime_r() */ +} + +static ERTS_INLINE int +prepare_crash_dump(int secs) +{ +#define NUFBUF (3) + int i, max; + char env[21]; /* enough to hold any 64-bit integer */ + size_t envsz; + /*DeclareTmpHeapNoproc(heap,NUFBUF);*/ + /*Eterm *hp = heap;*/ + /*Eterm list = NIL;*/ + int has_heart = 0; + + UseTmpHeapNoproc(NUFBUF); + + if (ERTS_PREPARED_CRASH_DUMP) + return 0; /* We have already been called */ + + + /* Positive secs means an alarm must be set + * 0 or negative means no alarm + * + * Set alarm before we try to write to a port + * we don't want to hang on a port write with + * no alarm. + * + */ + +#if 0 /*ose TBD!!!*/ + if (secs >= 0) { + alarm((unsigned int)secs); + } +#endif + + /* Make sure we unregister at epmd (unknown fd) and get at least + one free filedescriptor (for erl_crash.dump) */ + + max = max_files; + if (max < 1024) + max = 1024; + for (i = 3; i < max; i++) { + close(i); + } + + envsz = sizeof(env); + i = erts_sys_getenv__("ERL_CRASH_DUMP_NICE", env, &envsz); + if (i >= 0) { + int nice_val; + nice_val = i != 0 ? 0 : atoi(env); + if (nice_val > 39) { + nice_val = 39; + } + set_pri(nice_val); + } + + UnUseTmpHeapNoproc(NUFBUF); +#undef NUFBUF + return has_heart; +} + +int erts_sys_prepare_crash_dump(int secs) +{ + return prepare_crash_dump(secs); +} + +static ERTS_INLINE void +break_requested(void) +{ + /* + * just set a flag - checked for and handled by + * scheduler threads erts_check_io() (not signal handler). + */ +#ifdef DEBUG + fprintf(stderr,"break!\n"); +#endif + if (ERTS_BREAK_REQUESTED) + erl_exit(ERTS_INTR_EXIT, ""); + + ERTS_SET_BREAK_REQUESTED; + ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */ +} + +/* Disable break */ +void erts_set_ignore_break(void) { + +} + +/* Don't use ctrl-c for break handler but let it be + used by the shell instead (see user_drv.erl) */ +void erts_replace_intr(void) { + struct termios mode; + + if (isatty(0)) { + tcgetattr(0, &mode); + + /* here's an example of how to replace ctrl-c with ctrl-u */ + /* mode.c_cc[VKILL] = 0; + mode.c_cc[VINTR] = CKILL; */ + + mode.c_cc[VINTR] = 0; /* disable ctrl-c */ + tcsetattr(0, TCSANOW, &mode); + replace_intr = 1; + } +} + +void init_break_handler(void) +{ + +} + +int sys_max_files(void) +{ + return(max_files); +} + + +/************************** OS info *******************************/ + +/* Used by erlang:info/1. */ +/* (This code was formerly in drv.XXX/XXX_os_drv.c) */ + +char os_type[] = "ose"; + +void +os_flavor(char* namebuf, /* Where to return the name. */ + unsigned size) /* Size of name buffer. */ +{ +#if 0 + struct utsname uts; /* Information about the system. */ + char* s; + + (void) uname(&uts); + for (s = uts.sysname; *s; s++) { + if (isupper((int) *s)) { + *s = tolower((int) *s); + } + } + strcpy(namebuf, uts.sysname); +#else + strncpy(namebuf, "release", size); +#endif +} + +void +os_version(pMajor, pMinor, pBuild) +int* pMajor; /* Pointer to major version. */ +int* pMinor; /* Pointer to minor version. */ +int* pBuild; /* Pointer to build number. */ +{ + *pMajor = 5; + *pMinor = 7; + *pBuild = 0; +} + +void init_getenv_state(GETENV_STATE *state) +{ + erts_smp_rwmtx_rlock(&environ_rwmtx); + *state = NULL; +} + +char **environ; /*ose - needs replacement*/ + +char *getenv_string(GETENV_STATE *state0) +{ + char **state = (char **) *state0; + char *cp; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&environ_rwmtx)); + + if (state == NULL) + state = environ; + + cp = *state++; + *state0 = (GETENV_STATE) state; + + return cp; +} + +void fini_getenv_state(GETENV_STATE *state) +{ + *state = NULL; + erts_smp_rwmtx_runlock(&environ_rwmtx); +} + + +/************************** Port I/O *******************************/ + +/* I. Common stuff */ + +union SIGNAL { + SIGSELECT sig_no; + struct FmReadPtr fm_read_reply; + struct FmWritePtr fm_write_reply; + struct async async; +}; + +/* II. The spawn/fd drivers */ + +/* + * Decreasing the size of it below 16384 is not allowed. + */ +#define ERTS_SYS_READ_BUF_SZ (64*1024) + +/* Driver interfaces */ +static ErlDrvData spawn_start(ErlDrvPort, char*, SysDriverOpts*); +static ErlDrvData fd_start(ErlDrvPort, char*, SysDriverOpts*); +static ErlDrvSSizeT fd_control(ErlDrvData, unsigned int, char *, ErlDrvSizeT, + char **, ErlDrvSizeT); +static int spawn_init(void); +static void fd_stop(ErlDrvData); +static void erl_stop(ErlDrvData); +static void ready_input(ErlDrvData, ErlDrvEvent); +static void ready_output(ErlDrvData, ErlDrvEvent); +static void output(ErlDrvData, char*, ErlDrvSizeT); +static void stop_select(ErlDrvEvent, void*); + +static PROCESS +get_signal_proxy_pid(void) { + union SIGNAL *sig; + SIGSELECT any_sig[] = {0}; + + if (!sig_proxy_pid) { + sig = alloc(sizeof(union SIGNAL), ERTS_SIGNAL_OSE_DRV_ATTACH); + hunt("ose_signal_driver_proxy", 0, NULL, &sig); + sig = receive(any_sig); + sig_proxy_pid = sender(&sig); + free_buf(&sig); + } + ASSERT(sig_proxy_pid); + return sig_proxy_pid; +} + +static ErlDrvOseEventId +resolve_signal(union SIGNAL* sig) { + switch(sig->sig_no) { + + case FM_READ_PTR_REPLY: + return (ErlDrvOseEventId)sig->fm_read_reply.handle; + + case FM_WRITE_PTR_REPLY: + return (ErlDrvOseEventId)sig->fm_write_reply.handle; + + case ERTS_SIGNAL_OSE_DRV_ATTACH: + return (ErlDrvOseEventId)sig->async.target; + + default: + break; + } + return (ErlDrvOseEventId)-1; +} + +struct erl_drv_entry spawn_driver_entry = { + spawn_init, + spawn_start, + erl_stop, + output, + ready_input, + ready_output, + "spawn", + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + ERL_DRV_EXTENDED_MARKER, + ERL_DRV_EXTENDED_MAJOR_VERSION, + ERL_DRV_EXTENDED_MINOR_VERSION, + ERL_DRV_FLAG_USE_PORT_LOCKING, + NULL, NULL, + stop_select +}; +struct erl_drv_entry fd_driver_entry = { + NULL, + fd_start, + fd_stop, + output, + ready_input, + ready_output, + "fd", + NULL, + NULL, + fd_control, + NULL, + NULL, + NULL, /* ready_async */ + NULL, /* flush */ + NULL, /* call */ + NULL, /* event */ + ERL_DRV_EXTENDED_MARKER, + ERL_DRV_EXTENDED_MAJOR_VERSION, + ERL_DRV_EXTENDED_MINOR_VERSION, + 0, /* ERL_DRV_FLAGs */ + NULL, /* handle2 */ + NULL, /* process_exit */ + stop_select +}; + +static void +set_spawn_fd(int local_fd, int remote_fd, PROCESS remote_pid) { + PROCESS vm_pid; + FmHandle handle; + char env_val[55]; + char env_name[10]; + EfsStatus efs_res; + + /* get pid of pipevm and handle of chosen fd */ + efs_res = efs_examine_fd(local_fd, FLIB_FD_VMPID, &vm_pid, 0); + DEBUG_CHECK_RES(efs_res, EFS_SUCCESS); + + /* setup the file descriptor to buffer per line */ + efs_res = efs_config_fd(local_fd, FLIB_FD_BUFMODE, FM_BUFF_LINE, + FLIB_FD_BUFSIZE, 80, 0); + DEBUG_CHECK_RES(efs_res, EFS_SUCCESS); + + /* duplicate handle and set spawn pid owner */ + efs_res = efs_dup_to(local_fd, remote_pid, &handle); + DEBUG_CHECK_RES(efs_res, EFS_SUCCESS); + + sprintf(env_name, "FD%d", remote_fd); + + /* Syntax of the environment variable: + * "FD#" "<pid of pipevm>,<handle>,<buffer mode>,<buff size>,<omode>" */ + sprintf(env_val, "0x%lx,0x%lx,%lu,%lu,0x%x", + vm_pid, handle, + FM_BUFF_LINE, 80, + O_APPEND); + + set_env(remote_pid, env_name, env_val); +} + +static ErlDrvData +set_driver_data(ErlDrvPort port_num, + int ifd, + int ofd, + int packet_bytes, + int read_write, + int exit_status, + PROCESS pid) +{ + Port *prt; + ErtsSysReportExit *report_exit; + + prt = erts_drvport2port(port_num); + if (prt != ERTS_INVALID_ERL_DRV_PORT) { + prt->os_pid = pid; + } + + /* READ */ + if (read_write & DO_READ) { + efs_examine_fd(ifd, FLIB_FD_HANDLE, &driver_data[ifd].handle, 0); + driver_data[ifd].ifd = ifd; + driver_data[ifd].packet_bytes = packet_bytes; + driver_data[ifd].port_num = port_num; + driver_data[ifd].pid = pid; + + /* async read struct */ + memset(&driver_data[ifd].aiocb, 0, sizeof(struct aiocb)); + driver_data[ifd].aiocb.aio_buf = driver_alloc(255); + driver_data[ifd].aiocb.aio_fildes = ifd; + driver_data[ifd].aiocb.aio_nbytes = 255; + + driver_data[ifd].alive = 1; + driver_data[ifd].status = 0; + driver_data[ifd].input_event = + erl_drv_ose_event_alloc(FM_READ_PTR_REPLY, + driver_data[ifd].handle, resolve_signal, + &driver_data[ifd].ifd); + + /* READ & WRITE */ + if (read_write & DO_WRITE) { + driver_data[ifd].ofd = ofd; + efs_examine_fd(ofd, FLIB_FD_HANDLE, &driver_data[ofd].handle, 0); + + driver_data[ifd].output_event = + erl_drv_ose_event_alloc(FM_WRITE_PTR_REPLY, + driver_data[ofd].handle, resolve_signal, + &driver_data[ofd].ofd); + driver_data[ofd].pid = pid; + if (ifd != ofd) { + driver_data[ofd] = driver_data[ifd]; + driver_data[ofd].aiocb.aio_buf = NULL; + } + } + else { /* READ ONLY */ + driver_data[ifd].ofd = -1; + } + + /* enable input event */ + (void) driver_select(port_num, driver_data[ifd].input_event, + (ERL_DRV_READ | ERL_DRV_USE), 1); + + aio_read(&driver_data[ifd].aiocb); + } + else { /* WRITE ONLY */ + efs_examine_fd(ofd, FLIB_FD_HANDLE, &driver_data[ofd].handle, 0); + driver_data[ofd].packet_bytes = packet_bytes; + driver_data[ofd].port_num = port_num; + driver_data[ofd].ofd = ofd; + driver_data[ofd].pid = pid; + driver_data[ofd].alive = 1; + driver_data[ofd].status = 0; + driver_data[ofd].output_event = + erl_drv_ose_event_alloc(FM_WRITE_PTR_REPLY, driver_data[ofd].handle, + resolve_signal, &driver_data[ofd].ofd); + driver_data[ofd].input_event = driver_data[ofd].output_event; + } + + /* this is used for spawned load modules, and is needed + * to properly uninstall them */ + if (exit_status) { + struct PmProgramInfo *info; + int install_handle_size; + union SIGNAL *sig; + PmStatus pm_status; + report_exit = erts_alloc(ERTS_ALC_T_PRT_REP_EXIT, + sizeof(ErtsSysReportExit)); + report_exit->next = report_exit_list; + report_exit->port = erts_drvport2id(port_num); + report_exit->pid = pid; + report_exit->ifd = (read_write & DO_READ) ? ifd : -1; + report_exit->ofd = (read_write & DO_WRITE) ? ofd : -1; + report_exit_list = report_exit; + report_exit->attach_event = + erl_drv_ose_event_alloc(ERTS_SIGNAL_OSE_DRV_ATTACH, pid, + resolve_signal, &driver_data[ifd].ifd); + + /* setup ifd and ofd report exit */ + driver_data[ifd].report_exit = report_exit; + driver_data[ofd].report_exit = report_exit; + + pm_status = ose_pm_program_info(pid, &info); + DEBUG_CHECK_RES(pm_status, PM_SUCCESS); + + install_handle_size = strlen(info->install_handle)+1; + driver_data[ifd].install_handle = driver_alloc(install_handle_size); + strcpy(driver_data[ifd].install_handle, + info->install_handle); + + free_buf((union SIGNAL **)&info); + + sig = alloc(sizeof(struct async), ERTS_SIGNAL_OSE_DRV_ATTACH); + sig->async.target = pid; + send(&sig, get_signal_proxy_pid()); + + /* this event will trigger when we receive an attach signal + * from the recently dead load module */ + (void)driver_select(port_num,report_exit->attach_event, DO_READ, 1); + } + else { + report_exit = NULL; + } + + /* the return value is the pointer to the driver_data struct we created + * in this function, it will be used in the drivers input + * and output functions */ + return (ErlDrvData)((!(read_write & DO_READ) && read_write & DO_WRITE) + ? &driver_data[ofd] + : &driver_data[ifd]); +} + +static int spawn_init() +{ + int i; + + driver_data = (struct driver_data *) + erts_alloc(ERTS_ALC_T_DRV_TAB, max_files * sizeof(struct driver_data)); + erts_smp_atomic_add_nob(&sys_misc_mem_sz, + max_files * sizeof(struct driver_data)); + + for (i = 0; i < max_files; i++) + driver_data[i].pid = -1; + + return 1; +} + +static void +init_fd_data(int fd, ErlDrvPort port_num) +{ + fd_data[fd].buf = NULL; + fd_data[fd].cpos = NULL; + fd_data[fd].remain = 0; + fd_data[fd].sz = 0; + fd_data[fd].psz = 0; +} + +/* FIXME write a decent text on pipes on ose */ +static ErlDrvData +spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts) +{ + int ifd[2]; + int ofd[2]; + static uint32_t ticker = 0; + PmStatus pm_status; + OSDOMAIN domain = PM_NEW_DOMAIN; + PROCESS progpid, mainbid, mainpid; + char *handle = NULL; + struct PmProgramInfo *info; + char *args = NULL; + char *tmp_handle; + ErlDrvData res = (ErlDrvData)-1; + int handle_size; + char *ptr; + + /* handle arguments */ + ptr = strchr(name, ' '); + if (ptr != NULL) { + *ptr ='\0'; + ptr++; + args = ptr; + } + else { + args = NULL; + } + + /* create an install handle */ + ptr = strrchr(name, '/'); + if (ptr != NULL) { + ptr++; + tmp_handle = ptr; + } + else { + tmp_handle = name; + } + handle_size = strlen(tmp_handle)+1; + handle_size += (ticker<10)?3:((ticker<100)?4:5); + + handle = driver_alloc(handle_size); + snprintf(handle, handle_size, "%s_%d", tmp_handle, ticker); + + do { + snprintf(handle, handle_size, "%s_%d", tmp_handle, ticker++); + pm_status = ose_pm_install_load_module(0, "ELF", name, handle, + 0, 0, NULL); + + } while (pm_status == PM_EINSTALL_HANDLE_ALREADY_INSTALLED); + DEBUG_CHECK_RES(pm_status, PM_SUCCESS); + + /* Create Program */ + pm_status = ose_pm_create_program(&domain, handle, 0, 0, + NULL, &progpid, &mainbid); + DEBUG_CHECK_RES(pm_status, PM_SUCCESS); + + /* Get the mainpid from the newly created program */ + pm_status = ose_pm_program_info(progpid, &info); + DEBUG_CHECK_RES(pm_status, PM_SUCCESS); + + mainpid = info->main_process; + free_buf ((union SIGNAL **)&info); + + /* pipevm needs to be started + * pipe will return 0 if success, -1 if not, + * errno will be set */ + if (pipe(ifd) != 0 || pipe(ofd) != 0) { + DEBUG_CHECK_RES(0, -1); + ASSERT(0); + } + + /* setup driver data */ + res = set_driver_data(port_num, ofd[0], ifd[1], opts->packet_bytes, + opts->read_write, 1 /* opts->exit_status */, progpid); + + /* init the fd_data array for read/write */ + init_fd_data(ofd[0], port_num); + init_fd_data(ifd[1], port_num); + + /* setup additional configurations + * for the spawned applications environment */ + if (args != NULL) { + set_env(progpid, "ARGV", args); + } + set_env(mainbid, "EFS_RESOLVE_TMO", 0); + set_spawn_fd(ifd[0], 0, mainpid); + set_spawn_fd(ofd[1], 1, mainpid); + set_spawn_fd(ofd[1], 2, mainpid); + + /* start the spawned program */ + pm_status = ose_pm_start_program(mainbid); + DEBUG_CHECK_RES(pm_status, PM_SUCCESS); + + /* close unused fd's */ + close(ifd[0]); + close(ofd[1]); + + if (handle) { + driver_free(handle); + } + + return (ErlDrvData)res; +} + +#define FD_DEF_HEIGHT 24 +#define FD_DEF_WIDTH 80 +/* Control op */ +#define FD_CTRL_OP_GET_WINSIZE 100 + +static int fd_get_window_size(int fd, Uint32 *width, Uint32 *height) +{ +#ifdef TIOCGWINSZ + struct winsize ws; + if (ioctl(fd,TIOCGWINSZ,&ws) == 0) { + *width = (Uint32) ws.ws_col; + *height = (Uint32) ws.ws_row; + return 0; + } +#endif + return -1; +} + +static ErlDrvSSizeT fd_control(ErlDrvData drv_data, + unsigned int command, + char *buf, ErlDrvSizeT len, + char **rbuf, ErlDrvSizeT rlen) +{ + struct driver_data *data = (struct driver_data *)drv_data; + char resbuff[2*sizeof(Uint32)]; + switch (command) { + case FD_CTRL_OP_GET_WINSIZE: + { + Uint32 w,h; + if (fd_get_window_size(data->ifd,&w,&h)) + return 0; + memcpy(resbuff,&w,sizeof(Uint32)); + memcpy(resbuff+sizeof(Uint32),&h,sizeof(Uint32)); + } + break; + default: + return 0; + } + if (rlen < 2*sizeof(Uint32)) { + *rbuf = driver_alloc(2*sizeof(Uint32)); + } + memcpy(*rbuf,resbuff,2*sizeof(Uint32)); + return 2*sizeof(Uint32); +} + +static ErlDrvData fd_start(ErlDrvPort port_num, char* name, + SysDriverOpts* opts) +{ + ErlDrvData res; + + CHLD_STAT_LOCK; + if (opts->read_write & DO_READ) { + init_fd_data(opts->ifd, port_num); + } + if (opts->read_write & DO_WRITE) { + init_fd_data(opts->ofd, port_num); + } + res = set_driver_data(port_num, opts->ifd, opts->ofd, + opts->packet_bytes, + opts->read_write, 0, -1); + CHLD_STAT_UNLOCK; + return res; +} + +static void clear_fd_data(int fd) +{ + if (fd_data[fd].sz > 0) { + erts_free(ERTS_ALC_T_FD_ENTRY_BUF, (void *) fd_data[fd].buf); + ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= fd_data[fd].sz); + erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*fd_data[fd].sz); + } + fd_data[fd].buf = NULL; + fd_data[fd].sz = 0; + fd_data[fd].remain = 0; + fd_data[fd].cpos = NULL; + fd_data[fd].psz = 0; +} + +static void nbio_stop_fd(ErlDrvPort prt, ErlDrvEvent ev) +{ + int *fd; + driver_select(prt,ev,DO_READ|DO_WRITE,0); + erl_drv_ose_event_fetch(ev, NULL, NULL, (void **)&fd); + clear_fd_data(*fd); + SET_BLOCKING(*fd); +} + +static void fd_stop(ErlDrvData drv_data) /* Does not close the fds */ +{ + struct driver_data *data = (struct driver_data *)drv_data; + + if (data->ofd != -1) { + if (data->ifd != data->ofd) { /* read and write */ + nbio_stop_fd(data->port_num, data->input_event); + nbio_stop_fd(data->port_num, data->output_event); + } + else { /* write only */ + nbio_stop_fd(data->port_num, data->output_event); + } + } + else { /* read only */ + nbio_stop_fd(data->port_num, data->input_event); + } +} + + +static void erl_stop(ErlDrvData drv_data) +{ + struct driver_data *data = (struct driver_data *)drv_data; + + CHLD_STAT_LOCK; + data->pid = -1; + CHLD_STAT_UNLOCK; + + if (data->ofd != -1) { + if (data->ifd != data->ofd) { /* read and write */ + nbio_stop_fd(data->port_num, data->input_event); + nbio_stop_fd(data->port_num, data->output_event); + driver_select(data->port_num, data->input_event, ERL_DRV_USE, 0); + driver_select(data->port_num, data->output_event, ERL_DRV_USE, 0); + } + else { /* write only */ + nbio_stop_fd(data->port_num, data->output_event); + driver_select(data->port_num, data->output_event, ERL_DRV_USE, 0); + } + } + else { /* read only */ + nbio_stop_fd(data->port_num, data->input_event); + driver_select(data->port_num, data->input_event, ERL_DRV_USE, 0); + } + close(data->ifd); + close(data->ofd); +} + +/* The parameter e is a pointer to the driver_data structure + * related to the fd to be used as output */ +static void output(ErlDrvData drv_data, char* buf, ErlDrvSizeT len) +{ + ErlDrvSizeT sz; + char lb[4]; + char* lbp; + struct driver_data *data = (struct driver_data *)drv_data; + + if (((data->packet_bytes == 2) && + (len > 0xffff)) || (data->packet_bytes == 1 && len > 0xff)) { + driver_failure_posix(data->port_num, EINVAL); + return; /* -1; */ + } + put_int32(len, lb); + lbp = lb + (4-(data->packet_bytes)); + + if ((sz = driver_sizeq(data->port_num)) > 0) { + driver_enq(data->port_num, lbp, data->packet_bytes); + driver_enq(data->port_num, buf, len); + if (sz + len + data->packet_bytes >= (1 << 13)) + set_busy_port(data->port_num, 1); + } + else { + driver_enq(data->port_num, buf, len); /* n is the skip value */ + + driver_select(data->port_num, data->output_event, + ERL_DRV_WRITE|ERL_DRV_USE, 1); + + WRITE_AIO(data->ofd, len, buf); + } + return; /* 0; */ +} + +/* This function is being run when we in recieve + * either a read of 0 bytes, or the attach signal from a dying + * spawned load module */ +static int port_inp_failure(ErlDrvPort port_num, ErlDrvEvent ready_fd, int res) + /* Result: 0 (eof) or -1 (error) */ +{ + int *fd; + SIGSELECT sig_no; + ASSERT(res <= 0); + + erl_drv_ose_event_fetch(ready_fd,&sig_no, NULL, (void **)&fd); + + /* As we need to handle two signals, we do this in two steps */ + if (driver_data[*fd].alive) { + report_exit_status(driver_data[*fd].report_exit, 0); /* status? */ + } + else { + clear_fd_data(*fd); + driver_report_exit(driver_data[*fd].port_num, driver_data[*fd].status); + /* As we do not really know if the spawn has crashed or exited nicely + * we do not check the result status of the following call.. FIXME + * can we handle this in a better way? */ + ose_pm_uninstall_load_module(driver_data[*fd].install_handle); + driver_free(driver_data[*fd].install_handle); + driver_free((void *)driver_data[*fd].aiocb.aio_buf); + + close(*fd); + } + + return 0; +} + +/* The parameter e is a pointer to the driver_data structure + * related to the fd to be used as output. + * ready_fd is the event that triggered this call to ready_input */ +static void ready_input(ErlDrvData drv_data, ErlDrvEvent ready_fd) +{ + int res; + Uint h; + char *buf; + union SIGNAL *sig; + struct driver_data *data = (struct driver_data *)drv_data; + + sig = erl_drv_ose_get_signal(ready_fd); + ASSERT(sig); + + + while (sig) { + /* If we've recieved an attach signal, we need to handle + * it in port_inp_failure */ + if (sig->sig_no == ERTS_SIGNAL_OSE_DRV_ATTACH) { + port_inp_failure(data->port_num, ready_fd, 0); + } + else { + res = sig->fm_read_reply.actual; + + if (data->packet_bytes == 0) { + if (res < 0) { + if ((errno != EINTR) && (errno != ERRNO_BLOCK)) { + port_inp_failure(data->port_num, ready_fd, res); + } + } + else if (res == 0) { + /* read of 0 bytes, eof, otherside of pipe is assumed dead */ + port_inp_failure(data->port_num, ready_fd, res); + } + else { + buf = driver_alloc(res); + memcpy(buf, (void *)data->aiocb.aio_buf, res); + driver_select(data->port_num, data->output_event, + ERL_DRV_WRITE|ERL_DRV_USE, 1); + driver_output(data->port_num, (char*) buf, res); + driver_free(buf); + } + } + /* We try to read the remainder */ + else if (fd_data[data->ifd].remain > 0) { + if (res < 0) { + if ((errno != EINTR) && (errno != ERRNO_BLOCK)) { + port_inp_failure(data->port_num, ready_fd, res); + } + } + else if (res == 0) { + port_inp_failure(data->port_num, ready_fd, res); + } + else if (res == fd_data[data->ifd].remain) { /* we're done */ + driver_output(data->port_num, + fd_data[data->ifd].buf, + fd_data[data->ifd].sz); + clear_fd_data(data->ifd); + } + else { /* if (res < fd_data[fd].remain) */ + fd_data[data->ifd].cpos += res; + fd_data[data->ifd].remain -= res; + } + } + else if (fd_data[data->ifd].remain == 0) { /* clean fd */ + if (res < 0) { + if ((errno != EINTR) && (errno != ERRNO_BLOCK)) { + port_inp_failure(data->port_num, ready_fd, res); + } + } + else if (res == 0) { /* eof */ + port_inp_failure(data->port_num, ready_fd, res); + } + else if (res < data->packet_bytes - fd_data[data->ifd].psz) { + memcpy(fd_data[data->ifd].pbuf+fd_data[data->ifd].psz, + (void *)data->aiocb.aio_buf, res); + fd_data[data->ifd].psz += res; + } + else { /* if (res >= packet_bytes) */ + unsigned char* cpos = (unsigned char*)data->aiocb.aio_buf; + int bytes_left = res; + + while (1) { + int psz = fd_data[data->ifd].psz; + char* pbp = fd_data[data->ifd].pbuf + psz; + + while (bytes_left && (psz < data->packet_bytes)) { + *pbp++ = *cpos++; + bytes_left--; + psz++; + } + + if (psz < data->packet_bytes) { + fd_data[data->ifd].psz = psz; + break; + } + fd_data[data->ifd].psz = 0; + + switch (data->packet_bytes) { + case 1: h = get_int8(fd_data[data->ifd].pbuf); break; + case 2: h = get_int16(fd_data[data->ifd].pbuf); break; + case 4: h = get_int32(fd_data[data->ifd].pbuf); break; + default: ASSERT(0); return; /* -1; */ + } + + if (h <= (bytes_left)) { + driver_output(data->port_num, (char*) cpos, h); + cpos += h; + bytes_left -= h; + continue; + } + else { /* The last message we got was split */ + char *buf = erts_alloc_fnf(ERTS_ALC_T_FD_ENTRY_BUF, h); + if (!buf) { + errno = ENOMEM; + port_inp_failure(data->port_num, ready_fd, -1); + } + else { + erts_smp_atomic_add_nob(&sys_misc_mem_sz, h); + sys_memcpy(buf, cpos, bytes_left); + fd_data[data->ifd].buf = buf; + fd_data[data->ifd].sz = h; + fd_data[data->ifd].remain = h - bytes_left; + fd_data[data->ifd].cpos = buf + bytes_left; + } + break; + } + } + } + } + + /* reset the read buffer and init next asynch read */ + DISPATCH_AIO(sig); + memset((void *)data->aiocb.aio_buf, 0, 255); + + if (res > 0) { + aio_read(&data->aiocb); + } + } + sig = erl_drv_ose_get_signal(ready_fd); + } +} + + +/* The parameter e is a pointer to the driver_data structure + * related to the fd to be used as output. + * ready_fd is the event that triggered this call to ready_input */ +static void ready_output(ErlDrvData drv_data, ErlDrvEvent ready_fd) +{ + SysIOVec *iov; + int vlen; + int res; + union SIGNAL *sig; + struct driver_data *data = (struct driver_data *)drv_data; + + sig = erl_drv_ose_get_signal(ready_fd); + ASSERT(sig); + + while (sig != NULL) { + if (sig->fm_write_reply.actual <= 0) { + int status; + + status = efs_status_to_errno(sig->fm_write_reply.status); + driver_select(data->port_num, ready_fd, ERL_DRV_WRITE, 0); + DISPATCH_AIO(sig); + FREE_AIO(sig->fm_write_reply.buffer); + + driver_failure_posix(data->port_num, status); + } + else { /* written bytes > 0 */ + iov = driver_peekq(data->port_num, &vlen); + if (vlen > 0) { + DISPATCH_AIO(sig); + FREE_AIO(sig->fm_write_reply.buffer); + res = driver_deq(data->port_num, iov[0].iov_len); + if (res > 0) { + iov = driver_peekq(data->port_num, &vlen); + WRITE_AIO(data->ofd, iov[0].iov_len, iov[0].iov_base); + } + } + } + sig = erl_drv_ose_get_signal(ready_fd); + } +} + +static void stop_select(ErlDrvEvent ready_fd, void* _) +{ + int *fd; + erl_drv_ose_event_fetch(ready_fd, NULL, NULL, (void **)&fd); + erl_drv_ose_event_free(ready_fd); + close(*fd); +} + + +void erts_do_break_handling(void) +{ + struct termios temp_mode; + int saved = 0; + + /* + * Most functions that do_break() calls are intentionally not thread safe; + * therefore, make sure that all threads but this one are blocked before + * proceeding! + */ + erts_smp_thr_progress_block(); + + /* during break we revert to initial settings */ + /* this is done differently for oldshell */ + if (using_oldshell && !replace_intr) { + SET_BLOCKING(1); + } + else if (isatty(0)) { + tcgetattr(0,&temp_mode); + tcsetattr(0,TCSANOW,&initial_tty_mode); + saved = 1; + } + + /* call the break handling function, reset the flag */ + do_break(); + + fflush(stdout); + + /* after break we go back to saved settings */ + if (using_oldshell && !replace_intr) { + SET_NONBLOCKING(1); + } + else if (saved) { + tcsetattr(0,TCSANOW,&temp_mode); + } + + erts_smp_thr_progress_unblock(); +} + +static pid_t +getpid(void) +{ + return get_bid(current_process()); +} + +int getpagesize(void) +{ + return 1024; +} + + +/* Fills in the systems representation of the jam/beam process identifier. +** The Pid is put in STRING representation in the supplied buffer, +** no interpretatione of this should be done by the rest of the +** emulator. The buffer should be at least 21 bytes long. +*/ +void sys_get_pid(char *buffer, size_t buffer_size){ + pid_t p = getpid(); + /* Assume the pid is scalar and can rest in an unsigned long... */ + erts_snprintf(buffer, buffer_size, "%lu",(unsigned long) p); +} + +int +erts_sys_putenv_raw(char *key, char *value) { + return erts_sys_putenv(key, value); +} +int +erts_sys_putenv(char *key, char *value) +{ + int res; + + erts_smp_rwmtx_rwlock(&environ_rwmtx); + res = set_env(get_bid(current_process()), key, + value); + erts_smp_rwmtx_rwunlock(&environ_rwmtx); + return res; +} + + +int +erts_sys_unsetenv(char *key) +{ + int res; + + erts_smp_rwmtx_rwlock(&environ_rwmtx); + res = set_env(get_bid(current_process()),key,NULL); + erts_smp_rwmtx_rwunlock(&environ_rwmtx); + + return res; +} + +int +erts_sys_getenv__(char *key, char *value, size_t *size) +{ + int res; + char *orig_value = get_env(get_bid(current_process()), key); + if (!orig_value) + res = -1; + else { + size_t len = sys_strlen(orig_value); + if (len >= *size) { + *size = len + 1; + res = 1; + } + else { + *size = len; + sys_memcpy((void *) value, (void *) orig_value, len+1); + res = 0; + } + free_buf((union SIGNAL **)&orig_value); + } + return res; +} + +int +erts_sys_getenv_raw(char *key, char *value, size_t *size) { + return erts_sys_getenv(key, value, size); +} + +/* + * erts_sys_getenv + * returns: + * -1, if environment key is not set with a value + * 0, if environment key is set and value fits into buffer res + * 1, if environment key is set but does not fit into buffer res + * res is set with the needed buffer res value + */ + +int +erts_sys_getenv(char *key, char *value, size_t *size) +{ + int res; + erts_smp_rwmtx_rlock(&environ_rwmtx); + res = erts_sys_getenv__(key, value, size); + erts_smp_rwmtx_runlock(&environ_rwmtx); + return res; +} + +void +sys_init_io(void) +{ + fd_data = (struct fd_data *) + erts_alloc(ERTS_ALC_T_FD_TAB, max_files * sizeof(struct fd_data)); + erts_smp_atomic_add_nob(&sys_misc_mem_sz, + max_files * sizeof(struct fd_data)); +} + +extern const char pre_loaded_code[]; +extern Preload pre_loaded[]; + +void erts_sys_alloc_init(void) +{ +} + +void *erts_sys_alloc(ErtsAlcType_t t, void *x, Uint sz) +{ + void *res = malloc((size_t) sz); +#if HAVE_ERTS_MSEG + if (!res) { + erts_mseg_clear_cache(); + return malloc((size_t) sz); + } +#endif + return res; +} + +void *erts_sys_realloc(ErtsAlcType_t t, void *x, void *p, Uint sz) +{ + void *res = realloc(p, (size_t) sz); +#if HAVE_ERTS_MSEG + if (!res) { + erts_mseg_clear_cache(); + return realloc(p, (size_t) sz); + } +#endif + return res; +} + +void erts_sys_free(ErtsAlcType_t t, void *x, void *p) +{ + free(p); +} + +/* Return a pointer to a vector of names of preloaded modules */ + +Preload* +sys_preloaded(void) +{ + return pre_loaded; +} + +/* Return a pointer to preloaded code for module "module" */ +unsigned char* +sys_preload_begin(Preload* p) +{ + return p->code; +} + +/* Clean up if allocated */ +void sys_preload_end(Preload* p) +{ + /* Nothing */ +} + +/* Read a key from console (?) */ + +int sys_get_key(fd) +int fd; +{ + int c; + unsigned char rbuf[64]; + + fflush(stdout); /* Flush query ??? */ + + if ((c = read(fd,rbuf,64)) <= 0) { + return c; + } + + return rbuf[0]; +} + + +#ifdef DEBUG + +extern int erts_initialized; +void +erl_assert_error(const char* expr, const char* func, + const char* file, int line) +{ + fflush(stdout); + fprintf(stderr, "%s:%d:%s() Assertion failed: %s\n", + file, func, line, expr); + fflush(stderr); + ramlog_printf("%s:%d:%s() Assertion failed: %s\n", + file, func, line, expr); + + abort(); +} + +void +erl_debug(char* fmt, ...) +{ + char sbuf[1024]; /* Temporary buffer. */ + va_list va; + + if (debug_log) { + va_start(va, fmt); + vsprintf(sbuf, fmt, va); + va_end(va); + fprintf(stderr, "%s", sbuf); + } +} + +#endif /* DEBUG */ + +static ERTS_INLINE void +report_exit_status(ErtsSysReportExit *rep, int status) +{ + if (rep->ifd >= 0) { + driver_data[rep->ifd].alive = 0; + driver_data[rep->ifd].status = status; + } + if (rep->ofd >= 0) { + driver_data[rep->ofd].alive = 0; + driver_data[rep->ofd].status = status; + } + + erts_free(ERTS_ALC_T_PRT_REP_EXIT, rep); +} + +#define ERTS_REPORT_EXIT_STATUS report_exit_status + +/* + * Called from schedule() when it runs out of runnable processes, + * or when Erlang code has performed INPUT_REDUCTIONS reduction + * steps. runnable == 0 iff there are no runnable Erlang processes. + */ +void +erl_sys_schedule(int runnable) +{ + ASSERT(get_fsem(current_process()) == 0); +#ifdef ERTS_SMP + ASSERT(erts_get_scheduler_data()->no == 1); + ERTS_CHK_IO(!runnable); +#else + ERTS_CHK_IO( 1 ); +#endif + ASSERT(get_fsem(current_process()) == 0); + ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); +} + + +#ifdef ERTS_SMP + +void +erts_sys_main_thread(void) +{ + erts_thread_disable_fpe(); + + /* Become signal receiver thread... */ +#ifdef ERTS_ENABLE_LOCK_CHECK + erts_lc_set_thread_name("signal_receiver"); +#endif + + while (1) { + static const SIGSELECT sigsel[] = {0}; + union SIGNAL *msg = receive(sigsel); + + fprintf(stderr,"Main thread got message %d from 0x%x!!\r\n", + msg->sig_no, sender(&msg)); + free_buf(&msg); + } +} + +#endif /* ERTS_SMP */ + +void +erl_sys_args(int* argc, char** argv) +{ + int i, j; + + erts_smp_rwmtx_init(&environ_rwmtx, "environ"); + + init_check_io(); + + /* Handled arguments have been marked with NULL. Slide arguments + not handled towards the beginning of argv. */ + for (i = 0, j = 0; i < *argc; i++) { + if (argv[i]) + argv[j++] = argv[i]; + } + *argc = j; + +} diff --git a/erts/emulator/sys/ose/sys_float.c b/erts/emulator/sys/ose/sys_float.c new file mode 100644 index 0000000000..d9d6bb7c04 --- /dev/null +++ b/erts/emulator/sys/ose/sys_float.c @@ -0,0 +1,844 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2001-2013. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "global.h" +#include "erl_process.h" + + +#ifdef NO_FPE_SIGNALS + +void +erts_sys_init_float(void) +{ +# ifdef SIGFPE + sys_sigset(SIGFPE, SIG_IGN); /* Ignore so we can test for NaN and Inf */ +# endif +} + +#else /* !NO_FPE_SIGNALS */ + +#ifdef ERTS_SMP +static erts_tsd_key_t fpe_key; + +/* once-only initialisation early in the main thread (via erts_sys_init_float()) */ +static void erts_init_fp_exception(void) +{ + /* XXX: the wrappers prevent using a pthread destructor to + deallocate the key's value; so when/where do we do that? */ + erts_tsd_key_create(&fpe_key); +} + +void erts_thread_init_fp_exception(void) +{ + unsigned long *fpe = erts_alloc(ERTS_ALC_T_FP_EXCEPTION, sizeof(*fpe)); + *fpe = 0L; + erts_tsd_set(fpe_key, fpe); +} + +static ERTS_INLINE volatile unsigned long *erts_thread_get_fp_exception(void) +{ + return (volatile unsigned long*)erts_tsd_get(fpe_key); +} +#else /* !SMP */ +#define erts_init_fp_exception() /*empty*/ +static volatile unsigned long fp_exception; +#define erts_thread_get_fp_exception() (&fp_exception) +#endif /* SMP */ + +volatile unsigned long *erts_get_current_fp_exception(void) +{ + Process *c_p; + + c_p = erts_get_current_process(); + if (c_p) + return &c_p->fp_exception; + return erts_thread_get_fp_exception(); +} + +static void set_current_fp_exception(unsigned long pc) +{ + volatile unsigned long *fpexnp = erts_get_current_fp_exception(); + ASSERT(fpexnp != NULL); + *fpexnp = pc; +} + +void erts_fp_check_init_error(volatile unsigned long *fpexnp) +{ + char buf[64]; + snprintf(buf, sizeof buf, "ERTS_FP_CHECK_INIT at %p: detected unhandled FPE at %p\r\n", + __builtin_return_address(0), (void*)*fpexnp); + if (write(2, buf, strlen(buf)) <= 0) + erl_exit(ERTS_ABORT_EXIT, "%s", buf); + *fpexnp = 0; +#if defined(__i386__) || defined(__x86_64__) + erts_restore_fpu(); +#endif +} + +/* Is there no standard identifier for Darwin/MacOSX ? */ +#if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__) +#define __DARWIN__ 1 +#endif + +#if (defined(__i386__) || defined(__x86_64__)) && defined(__GNUC__) + +static void unmask_x87(void) +{ + unsigned short cw; + + __asm__ __volatile__("fstcw %0" : "=m"(cw)); + cw &= ~(0x01|0x04|0x08); /* unmask IM, ZM, OM */ + __asm__ __volatile__("fldcw %0" : : "m"(cw)); +} + +/* mask x87 FPE, return true if the previous state was unmasked */ +static int mask_x87(void) +{ + unsigned short cw; + int unmasked; + + __asm__ __volatile__("fstcw %0" : "=m"(cw)); + unmasked = (cw & (0x01|0x04|0x08)) == 0; + /* or just set cw = 0x37f */ + cw |= (0x01|0x04|0x08); /* mask IM, ZM, OM */ + __asm__ __volatile__("fldcw %0" : : "m"(cw)); + return unmasked; +} + +static void unmask_sse2(void) +{ + unsigned int mxcsr; + + __asm__ __volatile__("stmxcsr %0" : "=m"(mxcsr)); + mxcsr &= ~(0x003F|0x0680); /* clear exn flags, unmask OM, ZM, IM (not PM, UM, DM) */ + __asm__ __volatile__("ldmxcsr %0" : : "m"(mxcsr)); +} + +/* mask SSE2 FPE, return true if the previous state was unmasked */ +static int mask_sse2(void) +{ + unsigned int mxcsr; + int unmasked; + + __asm__ __volatile__("stmxcsr %0" : "=m"(mxcsr)); + unmasked = (mxcsr & 0x0680) == 0; + /* or just set mxcsr = 0x1f80 */ + mxcsr &= ~0x003F; /* clear exn flags */ + mxcsr |= 0x0680; /* mask OM, ZM, IM (not PM, UM, DM) */ + __asm__ __volatile__("ldmxcsr %0" : : "m"(mxcsr)); + return unmasked; +} + +#if defined(__x86_64__) + +static inline int cpu_has_sse2(void) { return 1; } + +#else /* !__x86_64__ */ + +/* + * Check if an x86-32 processor has SSE2. + */ +static unsigned int xor_eflags(unsigned int mask) +{ + unsigned int eax, edx; + + eax = mask; /* eax = mask */ + __asm__("pushfl\n\t" + "popl %0\n\t" /* edx = original EFLAGS */ + "xorl %0, %1\n\t" /* eax = mask ^ EFLAGS */ + "pushl %1\n\t" + "popfl\n\t" /* new EFLAGS = mask ^ original EFLAGS */ + "pushfl\n\t" + "popl %1\n\t" /* eax = new EFLAGS */ + "xorl %0, %1\n\t" /* eax = new EFLAGS ^ old EFLAGS */ + "pushl %0\n\t" + "popfl" /* restore original EFLAGS */ + : "=d"(edx), "=a"(eax) + : "1"(eax)); + return eax; +} + +static __inline__ unsigned int cpuid_eax(unsigned int op) +{ + unsigned int eax, save_ebx; + + /* In PIC mode i386 reserves EBX. So we must save + and restore it ourselves to not upset gcc. */ + __asm__( + "movl %%ebx, %1\n\t" + "cpuid\n\t" + "movl %1, %%ebx" + : "=a"(eax), "=m"(save_ebx) + : "0"(op) + : "cx", "dx"); + return eax; +} + +static __inline__ unsigned int cpuid_edx(unsigned int op) +{ + unsigned int eax, edx, save_ebx; + + /* In PIC mode i386 reserves EBX. So we must save + and restore it ourselves to not upset gcc. */ + __asm__( + "movl %%ebx, %2\n\t" + "cpuid\n\t" + "movl %2, %%ebx" + : "=a"(eax), "=d"(edx), "=m"(save_ebx) + : "0"(op) + : "cx"); + return edx; +} + +/* The AC bit, bit #18, is a new bit introduced in the EFLAGS + * register on the Intel486 processor to generate alignment + * faults. This bit cannot be set on the Intel386 processor. + */ +static __inline__ int is_386(void) +{ + return ((xor_eflags(1<<18) >> 18) & 1) == 0; +} + +/* Newer x86 processors have a CPUID instruction, as indicated by + * the ID bit (#21) in EFLAGS being modifiable. + */ +static __inline__ int has_CPUID(void) +{ + return (xor_eflags(1<<21) >> 21) & 1; +} + +static int cpu_has_sse2(void) +{ + unsigned int maxlev, features; + static int has_sse2 = -1; + + if (has_sse2 >= 0) + return has_sse2; + has_sse2 = 0; + + if (is_386()) + return 0; + if (!has_CPUID()) + return 0; + maxlev = cpuid_eax(0); + /* Intel A-step Pentium had a preliminary version of CPUID. + It also didn't have SSE2. */ + if ((maxlev & 0xFFFFFF00) == 0x0500) + return 0; + /* If max level is zero then CPUID cannot report any features. */ + if (maxlev == 0) + return 0; + features = cpuid_edx(1); + has_sse2 = (features & (1 << 26)) != 0; + + return has_sse2; +} +#endif /* !__x86_64__ */ + +static void unmask_fpe(void) +{ + __asm__ __volatile__("fnclex"); + unmask_x87(); + if (cpu_has_sse2()) + unmask_sse2(); +} + +static void unmask_fpe_conditional(int unmasked) +{ + if (unmasked) + unmask_fpe(); +} + +/* mask x86 FPE, return true if the previous state was unmasked */ +static int mask_fpe(void) +{ + int unmasked; + + unmasked = mask_x87(); + if (cpu_has_sse2()) + unmasked |= mask_sse2(); + return unmasked; +} + +void erts_restore_fpu(void) +{ + __asm__ __volatile__("fninit"); + unmask_x87(); + if (cpu_has_sse2()) + unmask_sse2(); +} + +#elif defined(__sparc__) && defined(__linux__) + +#if defined(__arch64__) +#define LDX "ldx" +#define STX "stx" +#else +#define LDX "ld" +#define STX "st" +#endif + +static void unmask_fpe(void) +{ + unsigned long fsr; + + __asm__(STX " %%fsr, %0" : "=m"(fsr)); + fsr &= ~(0x1FUL << 23); /* clear FSR[TEM] field */ + fsr |= (0x1AUL << 23); /* enable NV, OF, DZ exceptions */ + __asm__ __volatile__(LDX " %0, %%fsr" : : "m"(fsr)); +} + +static void unmask_fpe_conditional(int unmasked) +{ + if (unmasked) + unmask_fpe(); +} + +/* mask SPARC FPE, return true if the previous state was unmasked */ +static int mask_fpe(void) +{ + unsigned long fsr; + int unmasked; + + __asm__(STX " %%fsr, %0" : "=m"(fsr)); + unmasked = ((fsr >> 23) & 0x1A) == 0x1A; + fsr &= ~(0x1FUL << 23); /* clear FSR[TEM] field */ + __asm__ __volatile__(LDX " %0, %%fsr" : : "m"(fsr)); + return unmasked; +} + +#elif (defined(__powerpc__) && defined(__linux__)) || (defined(__ppc__) && defined(__DARWIN__)) + +#if defined(__linux__) +#include <sys/prctl.h> + +static void set_fpexc_precise(void) +{ + if (prctl(PR_SET_FPEXC, PR_FP_EXC_PRECISE) < 0) { + perror("PR_SET_FPEXC"); + exit(1); + } +} + +#elif defined(__DARWIN__) + +#include <mach/mach.h> +#include <pthread.h> + +/* + * FE0 FE1 MSR bits + * 0 0 floating-point exceptions disabled + * 0 1 floating-point imprecise nonrecoverable + * 1 0 floating-point imprecise recoverable + * 1 1 floating-point precise mode + * + * Apparently: + * - Darwin 5.5 (MacOS X <= 10.1) starts with FE0 == FE1 == 0, + * and resets FE0 and FE1 to 0 after each SIGFPE. + * - Darwin 6.0 (MacOS X 10.2) starts with FE0 == FE1 == 1, + * and does not reset FE0 or FE1 after a SIGFPE. + */ +#define FE0_MASK (1<<11) +#define FE1_MASK (1<<8) + +/* a thread cannot get or set its own MSR bits */ +static void *fpu_fpe_enable(void *arg) +{ + thread_t t = *(thread_t*)arg; + struct ppc_thread_state state; + unsigned int state_size = PPC_THREAD_STATE_COUNT; + + if (thread_get_state(t, PPC_THREAD_STATE, (natural_t*)&state, &state_size) != KERN_SUCCESS) { + perror("thread_get_state"); + exit(1); + } + if ((state.srr1 & (FE1_MASK|FE0_MASK)) != (FE1_MASK|FE0_MASK)) { +#if 1 + /* This would also have to be performed in the SIGFPE handler + to work around the MSR reset older Darwin releases do. */ + state.srr1 |= (FE1_MASK|FE0_MASK); + thread_set_state(t, PPC_THREAD_STATE, (natural_t*)&state, state_size); +#else + fprintf(stderr, "srr1 == 0x%08x, your Darwin is too old\n", state.srr1); + exit(1); +#endif + } + return NULL; /* Ok, we appear to be on Darwin 6.0 or later */ +} + +static void set_fpexc_precise(void) +{ + thread_t self = mach_thread_self(); + pthread_t enabler; + + if (pthread_create(&enabler, NULL, fpu_fpe_enable, &self)) { + perror("pthread_create"); + } else if (pthread_join(enabler, NULL)) { + perror("pthread_join"); + } +} + +#endif + +static void set_fpscr(unsigned int fpscr) +{ + union { + double d; + unsigned int fpscr[2]; + } u; + + u.fpscr[0] = 0xFFF80000; + u.fpscr[1] = fpscr; + __asm__ __volatile__("mtfsf 255,%0" : : "f"(u.d)); +} + +static unsigned int get_fpscr(void) +{ + union { + double d; + unsigned int fpscr[2]; + } u; + + __asm__("mffs %0" : "=f"(u.d)); + return u.fpscr[1]; +} + +static void unmask_fpe(void) +{ + set_fpexc_precise(); + set_fpscr(0x80|0x40|0x10); /* VE, OE, ZE; not UE or XE */ +} + +static void unmask_fpe_conditional(int unmasked) +{ + if (unmasked) + unmask_fpe(); +} + +/* mask PowerPC FPE, return true if the previous state was unmasked */ +static int mask_fpe(void) +{ + int unmasked; + + unmasked = (get_fpscr() & (0x80|0x40|0x10)) == (0x80|0x40|0x10); + set_fpscr(0x00); + return unmasked; +} + +#else + +static void unmask_fpe(void) +{ + fpsetmask(FP_X_INV | FP_X_OFL | FP_X_DZ); +} + +static void unmask_fpe_conditional(int unmasked) +{ + if (unmasked) + unmask_fpe(); +} + +/* mask IEEE FPE, return true if previous state was unmasked */ +static int mask_fpe(void) +{ + const fp_except unmasked_mask = FP_X_INV | FP_X_OFL | FP_X_DZ; + fp_except old_mask; + + old_mask = fpsetmask(0); + return (old_mask & unmasked_mask) == unmasked_mask; +} + +#endif + +#if (defined(__linux__) && (defined(__i386__) || defined(__x86_64__) || defined(__sparc__) || defined(__powerpc__))) || (defined(__DARWIN__) && (defined(__i386__) || defined(__x86_64__) || defined(__ppc__))) || (defined(__FreeBSD__) && (defined(__x86_64__) || defined(__i386__))) || ((defined(__NetBSD__) || defined(__OpenBSD__)) && defined(__x86_64__)) || (defined(__sun__) && defined(__x86_64__)) + +#if defined(__linux__) && defined(__i386__) +#if !defined(X86_FXSR_MAGIC) +#define X86_FXSR_MAGIC 0x0000 +#endif +#elif defined(__FreeBSD__) && defined(__x86_64__) +#include <sys/types.h> +#include <machine/fpu.h> +#elif defined(__FreeBSD__) && defined(__i386__) +#include <sys/types.h> +#include <machine/npx.h> +#elif defined(__DARWIN__) +#include <machine/signal.h> +#elif defined(__OpenBSD__) && defined(__x86_64__) +#include <sys/types.h> +#include <machine/fpu.h> +#endif +#if !(defined(__OpenBSD__) && defined(__x86_64__)) +#include <ucontext.h> +#endif +#include <string.h> + +#if defined(__linux__) && defined(__x86_64__) +#define mc_pc(mc) ((mc)->gregs[REG_RIP]) +#elif defined(__linux__) && defined(__i386__) +#define mc_pc(mc) ((mc)->gregs[REG_EIP]) +#elif defined(__DARWIN__) && defined(__i386__) +#ifdef DARWIN_MODERN_MCONTEXT +#define mc_pc(mc) ((mc)->__ss.__eip) +#else +#define mc_pc(mc) ((mc)->ss.eip) +#endif +#elif defined(__DARWIN__) && defined(__x86_64__) +#ifdef DARWIN_MODERN_MCONTEXT +#define mc_pc(mc) ((mc)->__ss.__rip) +#else +#define mc_pc(mc) ((mc)->ss.rip) +#endif +#elif defined(__FreeBSD__) && defined(__x86_64__) +#define mc_pc(mc) ((mc)->mc_rip) +#elif defined(__FreeBSD__) && defined(__i386__) +#define mc_pc(mc) ((mc)->mc_eip) +#elif defined(__NetBSD__) && defined(__x86_64__) +#define mc_pc(mc) ((mc)->__gregs[_REG_RIP]) +#elif defined(__NetBSD__) && defined(__i386__) +#define mc_pc(mc) ((mc)->__gregs[_REG_EIP]) +#elif defined(__OpenBSD__) && defined(__x86_64__) +#define mc_pc(mc) ((mc)->sc_rip) +#elif defined(__sun__) && defined(__x86_64__) +#define mc_pc(mc) ((mc)->gregs[REG_RIP]) +#endif + +static void fpe_sig_action(int sig, siginfo_t *si, void *puc) +{ + ucontext_t *uc = puc; + unsigned long pc; + +#if defined(__linux__) +#if defined(__x86_64__) + mcontext_t *mc = &uc->uc_mcontext; + fpregset_t fpstate = mc->fpregs; + pc = mc_pc(mc); + /* A failed SSE2 instruction will restart. To avoid + looping we mask SSE2 exceptions now and unmask them + again later in erts_check_fpe()/erts_restore_fpu(). + On RISCs we update PC to skip the failed instruction, + but the ever increasing complexity of the x86 instruction + set encoding makes that a poor solution here. */ + fpstate->mxcsr = 0x1F80; + fpstate->swd &= ~0xFF; +#elif defined(__i386__) + mcontext_t *mc = &uc->uc_mcontext; + fpregset_t fpstate = mc->fpregs; + pc = mc_pc(mc); + if ((fpstate->status >> 16) == X86_FXSR_MAGIC) + ((struct _fpstate*)fpstate)->mxcsr = 0x1F80; + fpstate->sw &= ~0xFF; +#elif defined(__sparc__) && defined(__arch64__) + /* on SPARC the 3rd parameter points to a sigcontext not a ucontext */ + struct sigcontext *sc = (struct sigcontext*)puc; + pc = sc->sigc_regs.tpc; + sc->sigc_regs.tpc = sc->sigc_regs.tnpc; + sc->sigc_regs.tnpc += 4; +#elif defined(__sparc__) + /* on SPARC the 3rd parameter points to a sigcontext not a ucontext */ + struct sigcontext *sc = (struct sigcontext*)puc; + pc = sc->si_regs.pc; + sc->si_regs.pc = sc->si_regs.npc; + sc->si_regs.npc = (unsigned long)sc->si_regs.npc + 4; +#elif defined(__powerpc__) +#if defined(__powerpc64__) + mcontext_t *mc = &uc->uc_mcontext; + unsigned long *regs = &mc->gp_regs[0]; +#else + mcontext_t *mc = uc->uc_mcontext.uc_regs; + unsigned long *regs = &mc->gregs[0]; +#endif + pc = regs[PT_NIP]; + regs[PT_NIP] += 4; + regs[PT_FPSCR] = 0x80|0x40|0x10; /* VE, OE, ZE; not UE or XE */ +#endif +#elif defined(__DARWIN__) && (defined(__i386__) || defined(__x86_64__)) +#ifdef DARWIN_MODERN_MCONTEXT + mcontext_t mc = uc->uc_mcontext; + pc = mc_pc(mc); + mc->__fs.__fpu_mxcsr = 0x1F80; + *(unsigned short *)&mc->__fs.__fpu_fsw &= ~0xFF; +#else + mcontext_t mc = uc->uc_mcontext; + pc = mc_pc(mc); + mc->fs.fpu_mxcsr = 0x1F80; + *(unsigned short *)&mc->fs.fpu_fsw &= ~0xFF; +#endif /* DARWIN_MODERN_MCONTEXT */ +#elif defined(__DARWIN__) && defined(__ppc__) + mcontext_t mc = uc->uc_mcontext; + pc = mc->ss.srr0; + mc->ss.srr0 += 4; + mc->fs.fpscr = 0x80|0x40|0x10; +#elif defined(__FreeBSD__) && defined(__x86_64__) + mcontext_t *mc = &uc->uc_mcontext; + struct savefpu *savefpu = (struct savefpu*)&mc->mc_fpstate; + struct envxmm *envxmm = &savefpu->sv_env; + pc = mc_pc(mc); + envxmm->en_mxcsr = 0x1F80; + envxmm->en_sw &= ~0xFF; +#elif defined(__FreeBSD__) && defined(__i386__) + mcontext_t *mc = &uc->uc_mcontext; + union savefpu *savefpu = (union savefpu*)&mc->mc_fpstate; + pc = mc_pc(mc); + if (mc->mc_fpformat == _MC_FPFMT_XMM) { + struct envxmm *envxmm = &savefpu->sv_xmm.sv_env; + envxmm->en_mxcsr = 0x1F80; + envxmm->en_sw &= ~0xFF; + } else { + struct env87 *env87 = &savefpu->sv_87.sv_env; + env87->en_sw &= ~0xFF; + } +#elif defined(__NetBSD__) && defined(__x86_64__) + mcontext_t *mc = &uc->uc_mcontext; + struct fxsave64 *fxsave = (struct fxsave64 *)&mc->__fpregs; + pc = mc_pc(mc); + fxsave->fx_mxcsr = 0x1F80; + fxsave->fx_fsw &= ~0xFF; +#elif defined(__NetBSD__) && defined(__i386__) + mcontext_t *mc = &uc->uc_mcontext; + pc = mc_pc(mc); + if (uc->uc_flags & _UC_FXSAVE) { + struct envxmm *envxmm = (struct envxmm *)&mc->__fpregs; + envxmm->en_mxcsr = 0x1F80; + envxmm->en_sw &= ~0xFF; + } else { + struct env87 *env87 = (struct env87 *)&mc->__fpregs; + env87->en_sw &= ~0xFF; + } +#elif defined(__OpenBSD__) && defined(__x86_64__) + struct fxsave64 *fxsave = uc->sc_fpstate; + pc = mc_pc(uc); + fxsave->fx_mxcsr = 0x1F80; + fxsave->fx_fsw &= ~0xFF; +#elif defined(__sun__) && defined(__x86_64__) + mcontext_t *mc = &uc->uc_mcontext; + struct fpchip_state *fpstate = &mc->fpregs.fp_reg_set.fpchip_state; + pc = mc_pc(mc); + fpstate->mxcsr = 0x1F80; + fpstate->sw &= ~0xFF; +#endif +#if 0 + { + char buf[64]; + snprintf(buf, sizeof buf, "%s: FPE at %p\r\n", __FUNCTION__, (void*)pc); + write(2, buf, strlen(buf)); + } +#endif + set_current_fp_exception(pc); +} + +static void erts_thread_catch_fp_exceptions(void) +{ + struct sigaction act; + memset(&act, 0, sizeof act); + act.sa_sigaction = fpe_sig_action; + act.sa_flags = SA_SIGINFO; + sigaction(SIGFPE, &act, NULL); + unmask_fpe(); +} + +#else /* !((__linux__ && (__i386__ || __x86_64__ || __powerpc__)) || (__DARWIN__ && (__i386__ || __x86_64__ || __ppc__))) */ + +static void fpe_sig_handler(int sig) +{ + set_current_fp_exception(1); /* XXX: convert to sigaction so we can get the trap PC */ +} + +static void erts_thread_catch_fp_exceptions(void) +{ + sys_sigset(SIGFPE, fpe_sig_handler); + unmask_fpe(); +} + +#endif /* (__linux__ && (__i386__ || __x86_64__ || __powerpc__)) || (__DARWIN__ && (__i386__ || __x86_64__ || __ppc__))) */ + +/* once-only initialisation early in the main thread */ +void erts_sys_init_float(void) +{ + erts_init_fp_exception(); + erts_thread_catch_fp_exceptions(); + erts_printf_block_fpe = erts_sys_block_fpe; + erts_printf_unblock_fpe = erts_sys_unblock_fpe; +} + +#endif /* NO_FPE_SIGNALS */ + +void erts_thread_init_float(void) +{ +#ifdef ERTS_SMP + /* This allows Erlang schedulers to leave Erlang-process context + and still have working FP exceptions. XXX: is this needed? */ + erts_thread_init_fp_exception(); +#endif + +#ifndef NO_FPE_SIGNALS + /* NOTE: + * erts_thread_disable_fpe() is called in all threads at + * creation. We at least need to call unmask_fpe() + */ +#if defined(__DARWIN__) || defined(__FreeBSD__) + /* Darwin (7.9.0) does not appear to propagate FP exception settings + to a new thread from its parent. So if we want FP exceptions, we + must manually re-enable them in each new thread. + FreeBSD 6.1 appears to suffer from a similar issue. */ + erts_thread_catch_fp_exceptions(); +#else + unmask_fpe(); +#endif + +#endif +} + +void erts_thread_disable_fpe(void) +{ +#if !defined(NO_FPE_SIGNALS) + (void)mask_fpe(); +#endif +} + +#if !defined(NO_FPE_SIGNALS) +int erts_sys_block_fpe(void) +{ + return mask_fpe(); +} + +void erts_sys_unblock_fpe(int unmasked) +{ + unmask_fpe_conditional(unmasked); +} +#endif + +/* The following check is incorporated from the Vee machine */ + +#define ISDIGIT(d) ((d) >= '0' && (d) <= '9') + +/* + ** Convert a double to ascii format 0.dddde[+|-]ddd + ** return number of characters converted or -1 if error. + ** + ** These two functions should maybe use localeconv() to pick up + ** the current radix character, but since it is uncertain how + ** expensive such a system call is, and since no-one has heard + ** of other radix characters than '.' and ',' an ad-hoc + ** low execution time solution is used instead. + */ + +int +sys_double_to_chars_ext(double fp, char *buffer, size_t buffer_size, size_t decimals) +{ + char *s = buffer; + + if (erts_snprintf(buffer, buffer_size, "%.*e", decimals, fp) >= buffer_size) + return -1; + /* Search upto decimal point */ + if (*s == '+' || *s == '-') s++; + while (ISDIGIT(*s)) s++; + if (*s == ',') *s++ = '.'; /* Replace ',' with '.' */ + /* Scan to end of string */ + while (*s) s++; + return s-buffer; /* i.e strlen(buffer) */ +} + +/* Float conversion */ + +int +sys_chars_to_double(char* buf, double* fp) +{ +#ifndef NO_FPE_SIGNALS + volatile unsigned long *fpexnp = erts_get_current_fp_exception(); +#endif + char *s = buf, *t, *dp; + + /* Robert says that something like this is what he really wanted: + * (The [.,] radix test is NOT what Robert wanted - it was added later) + * + * 7 == sscanf(Tbuf, "%[+-]%[0-9][.,]%[0-9]%[eE]%[+-]%[0-9]%s", ....); + * if (*s2 == 0 || *s3 == 0 || *s4 == 0 || *s6 == 0 || *s7) + * break; + */ + + /* Scan string to check syntax. */ + if (*s == '+' || *s == '-') s++; + if (!ISDIGIT(*s)) /* Leading digits. */ + return -1; + while (ISDIGIT(*s)) s++; + if (*s != '.' && *s != ',') /* Decimal part. */ + return -1; + dp = s++; /* Remember decimal point pos just in case */ + if (!ISDIGIT(*s)) + return -1; + while (ISDIGIT(*s)) s++; + if (*s == 'e' || *s == 'E') { + /* There is an exponent. */ + s++; + if (*s == '+' || *s == '-') s++; + if (!ISDIGIT(*s)) + return -1; + while (ISDIGIT(*s)) s++; + } + if (*s) /* That should be it */ + return -1; + +#ifdef NO_FPE_SIGNALS + errno = 0; +#endif + __ERTS_FP_CHECK_INIT(fpexnp); + *fp = strtod(buf, &t); + __ERTS_FP_ERROR_THOROUGH(fpexnp, *fp, return -1); + if (t != s) { /* Whole string not scanned */ + /* Try again with other radix char */ + *dp = (*dp == '.') ? ',' : '.'; + errno = 0; + __ERTS_FP_CHECK_INIT(fpexnp); + *fp = strtod(buf, &t); + __ERTS_FP_ERROR_THOROUGH(fpexnp, *fp, return -1); + } + +#ifdef NO_FPE_SIGNALS + if (errno == ERANGE) { + if (*fp == HUGE_VAL || *fp == -HUGE_VAL) { + /* overflow, should give error */ + return -1; + } else if (t == s && *fp == 0.0) { + /* This should give 0.0 - OTP-7178 */ + errno = 0; + + } else if (*fp == 0.0) { + return -1; + } + } +#endif + return 0; +} + +int +matherr(struct exception *exc) +{ +#if !defined(NO_FPE_SIGNALS) + volatile unsigned long *fpexnp = erts_get_current_fp_exception(); + if (fpexnp != NULL) + *fpexnp = (unsigned long)__builtin_return_address(0); +#endif + return 1; +} diff --git a/erts/emulator/sys/ose/sys_time.c b/erts/emulator/sys/ose/sys_time.c new file mode 100644 index 0000000000..7e96f68424 --- /dev/null +++ b/erts/emulator/sys/ose/sys_time.c @@ -0,0 +1,56 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2005-2009. All Rights Reserved. + * + * The contents of this file are subject to the Erlang Public License, + * Version 1.1, (the "License"); you may not use this file except in + * compliance with the License. You should have received a copy of the + * Erlang Public License along with this software. If not, it can be + * retrieved online at http://www.erlang.org/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + * the License for the specific language governing rights and limitations + * under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "global.h" + +/******************* Routines for time measurement *********************/ + +int erts_ticks_per_sec = 0; /* Will be SYS_CLK_TCK in erl_unix_sys.h */ + +int sys_init_time(void) +{ + return SYS_CLOCK_RESOLUTION; +} + +clock_t sys_times(SysTimes *now) { + now->tms_utime = now->tms_stime = now->tms_cutime = now->tms_cstime = 0; + return 0; +} + +static OSTICK last_tick_count = 0; +static SysHrTime wrap = 0; +static OSTICK us_per_tick; + +void sys_init_hrtime() { + us_per_tick = system_tick(); +} + +SysHrTime sys_gethrtime() { + OSTICK ticks = get_ticks(); + if (ticks < (SysHrTime) last_tick_count) { + wrap += 1ULL << 32; + } + last_tick_count = ticks; + return ((((SysHrTime) ticks) + wrap) * 1000*us_per_tick); +} |