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string: Add sigabbrev_np and sigdescr_np

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The sigabbrev_np returns the abbreviated signal name (e.g. "HUP" for
SIGHUP) while sigdescr_np returns the string describing the error
number (e.g "Hangup" for SIGHUP).  Different than strsignal,
sigdescr_np does not attempt to translate the return description and
both functions return NULL for an invalid signal number.

They should be used instead of sys_siglist or sys_sigabbrev and they
are both thread and async-signal safe.  They are added as GNU
extensions on string.h header (same as strsignal).

Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
and s390x-linux-gnu.

Tested-by: Carlos O'Donell <carlos@redhat.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Adhemerval Zanella
2020-05-18 17:05:05 -03:00
parent 4f92497488
commit bfe05aa289
43 changed files with 236 additions and 10 deletions
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2
sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
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@@ -2188,6 +2188,8 @@ GLIBC_2.32 pthread_attr_setsigmask_np F
GLIBC_2.32 pthread_getaffinity_np F
GLIBC_2.32 pthread_getattr_np F
GLIBC_2.32 pthread_sigmask F
GLIBC_2.32 sigabbrev_np F
GLIBC_2.32 sigdescr_np F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

2
sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
View File

@@ -2115,6 +2115,8 @@ GLIBC_2.32 pthread_attr_setsigmask_np F
GLIBC_2.32 pthread_getaffinity_np F
GLIBC_2.32 pthread_getattr_np F
GLIBC_2.32 pthread_sigmask F
GLIBC_2.32 sigabbrev_np F
GLIBC_2.32 sigdescr_np F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F