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-rw-r--r--erts/emulator/sys/unix/erl_unix_sys.h10
-rw-r--r--erts/emulator/sys/unix/sys.c126
-rw-r--r--erts/emulator/sys/unix/sys_drivers.c24
-rw-r--r--erts/emulator/sys/unix/sys_float.c8
4 files changed, 0 insertions, 168 deletions
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index 22059d21d5..cbbd0e6f40 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -128,10 +128,6 @@
/* File descriptors are numbers anc consecutively allocated on Unix */
#define ERTS_SYS_CONTINOUS_FD_NUMBERS
-#ifndef ERTS_SMP
-# undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
-# define ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
-#endif
typedef void *GETENV_STATE;
@@ -354,9 +350,7 @@ extern void erts_sys_unix_later_init(void);
#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 (!isfinite(f)) { Action; } else {}
# define __ERTS_FP_ERROR_THOROUGH(fpexnp, f, Action) __ERTS_FP_ERROR(fpexnp, f, Action)
@@ -369,9 +363,7 @@ extern void erts_sys_unix_later_init(void);
#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))
@@ -438,10 +430,8 @@ void erts_sys_unblock_fpe(int);
/* Threads */
-#ifdef USE_THREADS
extern int init_async(int);
extern int exit_async(void);
-#endif
#define ERTS_EXIT_AFTER_DUMP _exit
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 50d8a35217..83edca1c2f 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -58,9 +58,7 @@
#define __DARWIN__ 1
#endif
-#ifdef USE_THREADS
#include "erl_threads.h"
-#endif
#include "erl_mseg.h"
@@ -94,19 +92,12 @@ extern void erts_sys_init_float(void);
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
erts_smp_atomic_t sys_misc_mem_sz;
-#if defined(ERTS_SMP)
static void smp_sig_notify(int signum);
static int sig_notify_fds[2] = {-1, -1};
@@ -114,7 +105,6 @@ static int sig_notify_fds[2] = {-1, -1};
static int sig_suspend_fds[2] = {-1, -1};
#endif
-#endif
jmp_buf erts_sys_sigsegv_jmp;
@@ -128,38 +118,12 @@ 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
-#ifndef ERTS_SMP
-static Eterm signalstate_sigterm[] = {
- am_sigint, /* 0 */
- am_sighup, /* 1 */
- am_sigquit, /* 2 */
- am_sigabrt, /* 3 */
- am_sigalrm, /* 4 */
- am_sigterm, /* 5 */
- am_sigusr1, /* 6 */
- am_sigusr2, /* 7 */
- am_sigchld, /* 8 */
- am_sigstop, /* 9 */
- am_sigtstp /* 10 */
-};
-
-volatile Uint erts_signal_state = 0;
-#define ERTS_SET_SIGNAL_STATE(S) (erts_signal_state |= signum_to_signalstate(S))
-#define ERTS_CLEAR_SIGNAL_STATE (erts_signal_state = 0)
-static ERTS_INLINE Uint signum_to_signalstate(int signum);
-#endif
/* set early so the break handler has access to initial mode */
static struct termios initial_tty_mode;
@@ -223,9 +187,6 @@ init_check_io(void)
io_func.select = driver_select_kp;
io_func.enif_select = enif_select_kp;
io_func.event = driver_event_kp;
-#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
- io_func.check_io_as_interrupt = erts_check_io_async_sig_interrupt_kp;
-#endif
io_func.check_io_interrupt = erts_check_io_interrupt_kp;
io_func.check_io_interrupt_tmd = erts_check_io_interrupt_timed_kp;
io_func.check_io = erts_check_io_kp;
@@ -239,9 +200,6 @@ init_check_io(void)
io_func.select = driver_select_nkp;
io_func.enif_select = enif_select_nkp;
io_func.event = driver_event_nkp;
-#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
- io_func.check_io_as_interrupt = erts_check_io_async_sig_interrupt_nkp;
-#endif
io_func.check_io_interrupt = erts_check_io_interrupt_nkp;
io_func.check_io_interrupt_tmd = erts_check_io_interrupt_timed_nkp;
io_func.check_io = erts_check_io_nkp;
@@ -253,11 +211,7 @@ init_check_io(void)
}
}
-#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
-#define ERTS_CHK_IO_AS_INTR() (*io_func.check_io_as_interrupt)()
-#else
#define ERTS_CHK_IO_AS_INTR() (*io_func.check_io_interrupt)(1)
-#endif
#define ERTS_CHK_IO_INTR (*io_func.check_io_interrupt)
#define ERTS_CHK_IO_INTR_TMD (*io_func.check_io_interrupt_tmd)
#define ERTS_CHK_IO (*io_func.check_io)
@@ -272,11 +226,7 @@ init_check_io(void)
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
@@ -290,13 +240,11 @@ erts_sys_schedule_interrupt(int set)
ERTS_CHK_IO_INTR(set);
}
-#ifdef ERTS_SMP
void
erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
{
ERTS_CHK_IO_INTR_TMD(set, timeout_time);
}
-#endif
UWord
erts_sys_get_page_size(void)
@@ -339,7 +287,6 @@ MALLOC_USE_HASH(1);
#endif
#endif
-#ifdef USE_THREADS
#ifdef ERTS_THR_HAVE_SIG_FUNCS
@@ -418,19 +365,15 @@ thr_create_prepare_child(void *vtcdp)
erts_sched_bind_atthrcreate_child(tcdp->sched_bind_data);
}
-#endif /* #ifdef USE_THREADS */
void
erts_sys_pre_init(void)
{
-#ifdef USE_THREADS
erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
-#endif
erts_printf_add_cr_to_stdout = 1;
erts_printf_add_cr_to_stderr = 1;
-#ifdef USE_THREADS
eid.thread_create_child_func = thr_create_prepare_child;
/* Before creation in parent */
@@ -452,21 +395,13 @@ erts_sys_pre_init(void)
erts_lc_init();
#endif
-#endif /* USE_THREADS */
erts_init_sys_time_sup();
-#ifdef USE_THREADS
-#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
-#endif /* USE_THREADS */
erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0);
@@ -531,10 +466,8 @@ SIGFUNC sys_signal(int sig, SIGFUNC func)
return(oact.sa_handler);
}
-#ifdef USE_THREADS
#undef sigprocmask
#define sigprocmask erts_thr_sigmask
-#endif
void sys_sigblock(int sig)
{
@@ -697,11 +630,7 @@ break_requested(void)
static RETSIGTYPE request_break(int signum)
{
-#ifdef ERTS_SMP
smp_sig_notify(signum);
-#else
- break_requested();
-#endif
}
#ifdef ETHR_UNUSABLE_SIGUSRX
@@ -810,35 +739,10 @@ signum_to_signalterm(int signum)
}
}
-#ifndef ERTS_SMP
-static ERTS_INLINE Uint
-signum_to_signalstate(int signum)
-{
- switch (signum) {
- case SIGINT: return (1 << 0);
- case SIGHUP: return (1 << 1);
- case SIGQUIT: return (1 << 2);
- case SIGABRT: return (1 << 3);
- case SIGALRM: return (1 << 4);
- case SIGTERM: return (1 << 5);
- case SIGUSR1: return (1 << 6);
- case SIGUSR2: return (1 << 7);
- case SIGCHLD: return (1 << 8);
- case SIGSTOP: return (1 << 9);
- case SIGTSTP: return (1 << 10);
- default: return 0;
- }
-}
-#endif
static RETSIGTYPE generic_signal_handler(int signum)
{
-#ifdef ERTS_SMP
smp_sig_notify(signum);
-#else
- ERTS_SET_SIGNAL_STATE(signum);
- ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
-#endif
}
int erts_set_signal(Eterm signal, Eterm type) {
@@ -1032,22 +936,6 @@ void erts_do_break_handling(void)
erts_smp_thr_progress_unblock();
}
-#ifdef ERTS_SIGNAL_STATE
-void erts_handle_signal_state(void) {
- Uint signal_state = ERTS_SIGNAL_STATE;
- Uint i = 0;
-
- ERTS_CLEAR_SIGNAL_STATE;
-
- while (signal_state) {
- if (signal_state & 0x1) {
- signal_notify_requested(signalstate_sigterm[i]);
- }
- i++;
- signal_state = signal_state >> 1;
- }
-}
-#endif
/* Fills in the systems representation of the jam/beam process identifier.
** The Pid is put in STRING representation in the supplied buffer,
@@ -1282,16 +1170,6 @@ erl_assert_error(const char* expr, const char* func, const char* file, int line)
fprintf(stderr, "%s:%d:%s() Assertion failed: %s\n",
file, line, func, expr);
fflush(stderr);
-#if !defined(ERTS_SMP) && 0
- /* Writing a crashdump from a failed assertion when smp support
- * is enabled almost a guaranteed deadlocking, don't even bother.
- *
- * It could maybe be useful (but I'm not convinced) to write the
- * crashdump if smp support is disabled...
- */
- if (erts_initialized)
- erl_crash_dump(file, line, "Assertion failed: %s\n", expr);
-#endif
abort();
}
@@ -1326,7 +1204,6 @@ erl_sys_schedule(int runnable)
}
-#ifdef ERTS_SMP
static erts_smp_tid_t sig_dispatcher_tid;
@@ -1515,7 +1392,6 @@ erts_sys_main_thread(void)
}
}
-#endif /* ERTS_SMP */
#ifdef ERTS_ENABLE_KERNEL_POLL /* get_value() is currently only used when
kernel-poll is enabled */
@@ -1602,10 +1478,8 @@ erl_sys_args(int* argc, char** argv)
init_check_io();
-#ifdef ERTS_SMP
init_smp_sig_notify();
init_smp_sig_suspend();
-#endif
/* Handled arguments have been marked with NULL. Slide arguments
not handled towards the beginning of argv. */
diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c
index 834706d86f..03d948c6e9 100644
--- a/erts/emulator/sys/unix/sys_drivers.c
+++ b/erts/emulator/sys/unix/sys_drivers.c
@@ -53,9 +53,7 @@
#define WANT_NONBLOCKING /* must define this to pull in defs from sys.h */
#include "sys.h"
-#ifdef USE_THREADS
#include "erl_threads.h"
-#endif
extern char **environ;
extern erts_smp_rwmtx_t environ_rwmtx;
@@ -86,11 +84,7 @@ static Eterm forker_port;
#define MAXIOV 16
#endif
-#ifdef USE_THREADS
# define FDBLOCK 1
-#else
-# define FDBLOCK 0
-#endif
/* Used by the fd driver iff the fd could not be set to non-blocking */
typedef struct ErtsSysBlocking_ {
@@ -178,9 +172,7 @@ void
erl_sys_late_init(void)
{
SysDriverOpts opts;
-#ifdef ERTS_SMP
Port *port;
-#endif
sys_signal(SIGPIPE, SIG_IGN); /* Ignore - we'll handle the write failure */
@@ -197,13 +189,9 @@ erl_sys_late_init(void)
opts.argv = NULL;
opts.parallelism = erts_port_parallelism;
-#ifdef ERTS_SMP
port =
-#endif
erts_open_driver(&forker_driver, make_internal_pid(0), "forker", &opts, NULL, NULL);
-#ifdef ERTS_SMP
erts_mtx_unlock(port->lock);
-#endif
erts_sys_unix_later_init(); /* Need to be called after forker has been started */
}
@@ -220,10 +208,8 @@ static ErlDrvData vanilla_start(ErlDrvPort, char*, SysDriverOpts*);
/* II.III FD prototypes */
static ErlDrvData fd_start(ErlDrvPort, char*, SysDriverOpts*);
-#if FDBLOCK
static void fd_async(void *);
static void fd_ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data);
-#endif
static ErlDrvSSizeT fd_control(ErlDrvData, unsigned int, char *, ErlDrvSizeT,
char **, ErlDrvSizeT);
static void fd_stop(ErlDrvData);
@@ -287,11 +273,7 @@ struct erl_drv_entry fd_driver_entry = {
fd_control,
NULL,
outputv,
-#if FDBLOCK
fd_ready_async, /* ready_async */
-#else
- NULL,
-#endif
fd_flush, /* flush */
NULL, /* call */
NULL, /* event */
@@ -1092,13 +1074,11 @@ static void fd_stop(ErlDrvData ev) /* Does not close the fds */
ErlDrvPort prt = dd->port_num;
int sz = sizeof(ErtsSysDriverData);
-#if FDBLOCK
if (dd->blocking) {
erts_free(ERTS_ALC_T_SYS_BLOCKING, dd->blocking);
dd->blocking = NULL;
sz += sizeof(ErtsSysBlocking);
}
-#endif
if (dd->ifd) {
sz += sizeof(ErtsSysFdData);
@@ -1220,7 +1200,6 @@ static void outputv(ErlDrvData e, ErlIOVec* ev)
driver_enqv(ix, ev, n); /* n is the skip value */
driver_select(ix, ofd, ERL_DRV_WRITE|ERL_DRV_USE, 1);
}
-#if FDBLOCK
else {
if (ev->size != 0) {
driver_enqv(ix, ev, 0);
@@ -1231,7 +1210,6 @@ static void outputv(ErlDrvData e, ErlIOVec* ev)
driver_pdl_unlock(dd->blocking->pdl);
}
}
-#endif
/* return 0;*/
}
@@ -1579,7 +1557,6 @@ static void stop_select(ErlDrvEvent fd, void* _)
close((int)fd);
}
-#if FDBLOCK
static void
fd_async(void *async_data)
@@ -1658,7 +1635,6 @@ void fd_ready_async(ErlDrvData drv_data,
return; /* 0; */
}
-#endif
/* Forker driver */
diff --git a/erts/emulator/sys/unix/sys_float.c b/erts/emulator/sys/unix/sys_float.c
index 6435da086f..a82c15bd32 100644
--- a/erts/emulator/sys/unix/sys_float.c
+++ b/erts/emulator/sys/unix/sys_float.c
@@ -39,7 +39,6 @@ erts_sys_init_float(void)
#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()) */
@@ -61,11 +60,6 @@ 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)
{
@@ -659,11 +653,9 @@ void erts_sys_init_float(void)
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: