diff options
Diffstat (limited to 'erts/emulator/sys')
-rw-r--r-- | erts/emulator/sys/common/erl_mseg.c | 7 | ||||
-rw-r--r-- | erts/emulator/sys/unix/erl_unix_sys.h | 1 | ||||
-rw-r--r-- | erts/emulator/sys/unix/sys.c | 18 | ||||
-rw-r--r-- | erts/emulator/sys/unix/sys_drivers.c | 1 |
4 files changed, 23 insertions, 4 deletions
diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c index 1e05fd3490..d1895f3793 100644 --- a/erts/emulator/sys/common/erl_mseg.c +++ b/erts/emulator/sys/common/erl_mseg.c @@ -87,6 +87,7 @@ static const int debruijn[32] = { #define CACHE_AREAS (32 - MSEG_ALIGN_BITS) +/* FIXME: segment sizes > 2 GB result in bogus negative indices */ #define SIZE_TO_CACHE_AREA_IDX(S) (LOG2((S)) - MSEG_ALIGN_BITS) #define MAX_CACHE_SIZE (30) @@ -396,6 +397,9 @@ static ERTS_INLINE int cache_bless_segment(ErtsMsegAllctr_t *ma, void *seg, UWor if (MSEG_FLG_IS_2POW(flags)) { int ix = SIZE_TO_CACHE_AREA_IDX(size); + if (ix < 0) + return 0; + ASSERT(ix < CACHE_AREAS); ASSERT((1 << (ix + MSEG_ALIGN_BITS)) == size); @@ -471,6 +475,9 @@ static ERTS_INLINE void *cache_get_segment(ErtsMsegAllctr_t *ma, UWord *size_p, ASSERT(IS_2POW(size)); + if (ix < 0) + return NULL; + for( i = ix; i < CACHE_AREAS; i++) { if (erts_circleq_is_empty(&(ma->cache_powered_node[i]))) diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h index bd554238b7..aa373e76bc 100644 --- a/erts/emulator/sys/unix/erl_unix_sys.h +++ b/erts/emulator/sys/unix/erl_unix_sys.h @@ -322,6 +322,7 @@ extern SIGFUNC sys_signal(int, SIGFUNC); extern void sys_sigrelease(int); extern void sys_sigblock(int); extern void sys_init_suspend_handler(void); +extern void erts_sys_unix_later_init(void); /* * Handling of floating point exceptions. diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index f7ee9bace0..3752edc480 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -854,9 +854,14 @@ int erts_set_signal(Eterm signal, Eterm type) { /* Disable break */ void erts_set_ignore_break(void) { - sys_signal(SIGINT, SIG_IGN); - sys_signal(SIGQUIT, SIG_IGN); - sys_signal(SIGTSTP, SIG_IGN); + /* + * Ignore signals that can be sent to the VM by + * typing certain key combinations at the + * controlling terminal... + */ + sys_signal(SIGINT, SIG_IGN); /* Ctrl-C */ + sys_signal(SIGQUIT, SIG_IGN); /* Ctrl-\ */ + sys_signal(SIGTSTP, SIG_IGN); /* Ctrl-Z */ } /* Don't use ctrl-c for break handler but let it be @@ -880,7 +885,6 @@ void erts_replace_intr(void) { void init_break_handler(void) { sys_signal(SIGINT, request_break); - sys_signal(SIGTERM, generic_signal_handler); sys_signal(SIGHUP, generic_signal_handler); #ifndef ETHR_UNUSABLE_SIGUSRX sys_signal(SIGUSR1, generic_signal_handler); @@ -895,6 +899,12 @@ void sys_init_suspend_handler(void) #endif } +void +erts_sys_unix_later_init(void) +{ + sys_signal(SIGTERM, generic_signal_handler); +} + int sys_max_files(void) { return(max_files); diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c index 400f163652..93cf64719a 100644 --- a/erts/emulator/sys/unix/sys_drivers.c +++ b/erts/emulator/sys/unix/sys_drivers.c @@ -204,6 +204,7 @@ erl_sys_late_init(void) #ifdef ERTS_SMP erts_mtx_unlock(port->lock); #endif + erts_sys_unix_later_init(); /* Need to be called after forker has been started */ } /* II. Prototypes */ |