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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-04-21 09:41:59 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-06-30 14:56:21 -0300 |
| commit | a1bdd81664aa681364da368154c48501db249df9 (patch) | |
| tree | 29f01a9ad8bcda2794869dd0555537a2de16fa38 /stdlib | |
| parent | c22d2021a9f9bdea62398976eea4f0e6ef668b7d (diff) | |
| download | glibc-a1bdd81664aa681364da368154c48501db249df9.tar.gz glibc-a1bdd81664aa681364da368154c48501db249df9.tar.xz glibc-a1bdd81664aa681364da368154c48501db249df9.zip | |
Refactor internal-signals.h
The main drive is to optimize the internal usage and required size when sigset_t is embedded in other data structures. On Linux, the current supported signal set requires up to 8 bytes (16 on mips), was lower than the user defined sigset_t (128 bytes). A new internal type internal_sigset_t is added, along with the functions to operate on it similar to the ones for sigset_t. The internal-signals.h is also refactored to remove unused functions Besides small stack usage on some functions (posix_spawn, abort) it lower the struct pthread by about 120 bytes (112 on mips). Checked on x86_64-linux-gnu. Reviewed-by: Arjun Shankar <arjun@redhat.com>
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/abort.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/stdlib/abort.c b/stdlib/abort.c index bcf72f9356..9c1065af0e 100644 --- a/stdlib/abort.c +++ b/stdlib/abort.c @@ -21,7 +21,7 @@ #include <stdlib.h> #include <string.h> #include <unistd.h> -#include <sigsetops.h> +#include <internal-signals.h> /* Try to get a machine dependent instruction which will make the program crash. This is used in case everything else fails. */ @@ -48,7 +48,6 @@ void abort (void) { struct sigaction act; - sigset_t sigs; /* First acquire the lock. */ __libc_lock_lock_recursive (lock); @@ -59,9 +58,10 @@ abort (void) if (stage == 0) { ++stage; - __sigemptyset (&sigs); - __sigaddset (&sigs, SIGABRT); - __sigprocmask (SIG_UNBLOCK, &sigs, 0); + internal_sigset_t sigs; + internal_sigemptyset (&sigs); + internal_sigaddset (&sigs, SIGABRT); + internal_sigprocmask (SIG_UNBLOCK, &sigs, NULL); } /* Send signal which possibly calls a user handler. */ |