string: Add sigabbrev_np and sigdescr_np

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>

NEWS

@@ -47,6 +47,16 @@ Major new features:
   instead of weak references to symbols historically defined in
   libpthread.
 
+* The functions sigabbrev_np and sigdescr_np have been added.  The
+  sigabbrev_np returns the abbreviated signal name (e.g. "HUP" for SIGHUP)
+  while sigdescr_np returns a string describing the signal number (e.g
+  "Hangup" for SIGHUP).  Different than strsignal, sigdescr_np does not
+  attempt to translate the return description, 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.  These functions are GNU extensions.
+
 Deprecated and removed features, and other changes affecting compatibility:
 
 * The deprecated <sys/sysctl.h> header and the sysctl function have been

include/signal.h

@@ -16,7 +16,8 @@ libc_hidden_proto (__libc_current_sigrtmin)
 libc_hidden_proto (__libc_current_sigrtmax)
 extern const char * const __sys_siglist[_NSIG];
 libc_hidden_proto (__sys_siglist)
-
+extern const char * const __sys_sigabbrev[_NSIG];
+libc_hidden_proto (__sys_sigabbrev)
 
 /* Now define the internal interfaces.  */
 extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);

include/string.h

@@ -53,6 +53,9 @@ extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen);
 
 extern char *__strerror_l (int __errnum, locale_t __loc);
 
+extern const char *__sigdescr_np (int __errnum);
+libc_hidden_proto (__sigdescr_np)
+
 /* Get _STRING_ARCH_unaligned.  */
 #include <string_private.h>
 #endif

manual/signal.texi

@@ -880,6 +880,30 @@ to @var{signum}.
 This function is a BSD feature, declared in the header file @file{signal.h}.
 @end deftypefun
 
+@deftypefun void sigdescr_np (int @var{signum})
+@standards{GNU, string.h}
+@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
+This function returns the message describing the signal @var{signum} or
+@code{NULL} for invalid signal number (e.g "Hangup" for @code{SIGHUP}).
+Different than @code{strsignal} the returned description is not translated.
+The message points to a static storage whose lifetime is the whole lifetime
+of the program.
+
+@pindex string.h
+This function is a GNU extension, declared in the header file @file{string.h}.
+@end deftypefun
+
+@deftypefun void sigabbrev_np (int @var{signum})
+@standards{GNU, string.h}
+@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
+This function returns the abbreviation describing the signal @var{signum} or
+@code{NULL} for invalid signal number.  The message points to a static
+storage whose lifetime is the whole lifetime of the program.
+
+@pindex string.h
+This function is a GNU extension, declared in the header file @file{string.h}.
+@end deftypefun
+
 @node Signal Actions
 @section Specifying Signal Actions
 @cindex signal actions

stdio-common/siglist.c

@@ -34,5 +34,6 @@ const char *const __sys_sigabbrev[NSIG] =
 #include <siglist.h>
 #undef init_sig
 };
+libc_hidden_def (__sys_sigabbrev)
 
 #include <siglist-compat.c>

string/Makefile

@@ -44,7 +44,8 @@ routines	:= strcat strchr strcmp strcoll strcpy strcspn		\
 				     addsep replace)			\
 		   envz basename					\
 		   strcoll_l strxfrm_l string-inlines memrchr		\
-		   xpg-strerror strerror_l explicit_bzero
+		   xpg-strerror strerror_l explicit_bzero		\
+		   sigdescr_np sigabbrev_np
 
 strop-tests	:= memchr memcmp memcpy memmove mempcpy memset memccpy	\
 		   stpcpy stpncpy strcat strchr strcmp strcpy strcspn	\
@@ -61,7 +62,7 @@ tests		:= tester inl-tester noinl-tester testcopy test-ffs	\
 		   tst-strtok_r bug-strcoll2 tst-cmp tst-xbzero-opt	\
 		   test-endian-types test-endian-file-scope		\
 		   test-endian-sign-conversion tst-memmove-overflow	\
-		   tst-strsignal tst-strerror
+		   tst-strsignal tst-strerror test-sig_np
 
 # This test allocates a lot of memory and can run for a long time.
 xtests = tst-strcoll-overflow

string/Versions

@@ -85,4 +85,7 @@ libc {
   GLIBC_2.25 {
     explicit_bzero;
   }
+  GLIBC_2.32 {
+    sigdescr_np; sigabbrev_np;
+  }
 }

string/sigabbrev_np.c

@@ -0,0 +1,33 @@
+/* Return string describing signal abbreviation.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <string.h>
+#include <signal.h>
+#include <array_length.h>
+
+const char *const
+sigabbrev_np (int signum)
+{
+  const char *abbrev = NULL;
+
+  if (signum >= 0 && signum <= NSIG
+      && signum < array_length (__sys_sigabbrev))
+    abbrev = __sys_sigabbrev[signum];
+
+  return abbrev;
+}

string/sigdescr_np.c

@@ -0,0 +1,34 @@
+/* Return string describing signal.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <string.h>
+#include <signal.h>
+#include <array_length.h>
+
+const char *const
+__sigdescr_np (int signum)
+{
+  const char *descr = NULL;
+
+  if (signum >= 0 && signum <= NSIG && signum < array_length (__sys_siglist))
+    descr = __sys_siglist[signum];
+
+  return descr;
+}
+libc_hidden_def (__sigdescr_np)
+weak_alias (__sigdescr_np, sigdescr_np)

string/string.h

@@ -454,6 +454,14 @@ extern char *strsep (char **__restrict __stringp,
 /* Return a string describing the meaning of the signal number in SIG.  */
 extern char *strsignal (int __sig) __THROW;
 
+# ifdef __USE_GNU
+/* Return an abbreviation string for the signal number SIG.  */
+extern const char *sigabbrev_np (int __sig) __THROW;
+/* Return a string describing the meaning of the signal number in SIG,
+   the result is not translated.  */
+extern const char *sigdescr_np (int __sig) __THROW;
+# endif
+
 /* Copy SRC to DEST, returning the address of the terminating '\0' in DEST.  */
 extern char *__stpcpy (char *__restrict __dest, const char *__restrict __src)
      __THROW __nonnull ((1, 2));

string/strsignal.c

@@ -21,19 +21,14 @@
 #include <string.h>
 #include <libintl.h>
 #include <tls-internal.h>
-#include <array_length.h>
 
 /* Return a string describing the meaning of the signal number SIGNUM.  */
 char *
 strsignal (int signum)
 {
-  const char *desc = NULL;
+  const char *desc = __sigdescr_np (signum);
-
-  if (signum >= 0 && signum <= NSIG && signum < array_length (__sys_siglist))
-    desc = __sys_siglist[signum];
-
   if (desc != NULL)
-    return (char *) _(desc);
+    return _(desc);
 
   struct tls_internal_t *tls_internal = __glibc_tls_internal ();
   free (tls_internal->strsignal_buf);

string/test-sig_np.c

@@ -0,0 +1,51 @@
+/* Test and sigabbrev_np and sigdescr_np.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <string.h>
+#include <signal.h>
+#include <array_length.h>
+
+#include <support/support.h>
+#include <support/check.h>
+
+static const struct test_t
+{
+  int errno;
+  const char *abbrev;
+  const char *descr;
+} tests[] =
+{
+#define N_(name)                      name
+#define init_sig(sig, abbrev, desc)   { sig, abbrev, desc },
+#include <siglist.h>
+#undef init_sig
+};
+
+static int
+do_test (void)
+{
+  for (size_t i = 0; i < array_length (tests); i++)
+    {
+      TEST_COMPARE_STRING (sigabbrev_np (tests[i].errno), tests[i].abbrev);
+      TEST_COMPARE_STRING (sigdescr_np (tests[i].errno), tests[i].descr);
+    }
+
+  return 0;
+}
+
+#include <support/test-driver.c>

sysdeps/mach/hurd/i386/libc.abilist

@@ -2184,6 +2184,8 @@ GLIBC_2.30 twalk_r F
 GLIBC_2.32 __libc_single_threaded D 0x1
 GLIBC_2.32 mach_print F
 GLIBC_2.32 mremap F
+GLIBC_2.32 sigabbrev_np F
+GLIBC_2.32 sigdescr_np F
 GLIBC_2.32 thrd_current F
 GLIBC_2.32 thrd_equal F
 GLIBC_2.32 thrd_sleep F

sysdeps/unix/sysv/linux/aarch64/libc.abilist

@@ -2157,3 +2157,5 @@ 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

sysdeps/unix/sysv/linux/alpha/libc.abilist

@@ -2239,6 +2239,8 @@ 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

sysdeps/unix/sysv/linux/arm/be/libc.abilist

@@ -141,6 +141,8 @@ 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 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

sysdeps/unix/sysv/linux/arm/le/libc.abilist

@@ -138,6 +138,8 @@ 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 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

sysdeps/unix/sysv/linux/csky/libc.abilist

@@ -2101,3 +2101,5 @@ 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

sysdeps/unix/sysv/linux/hppa/libc.abilist

@@ -2060,6 +2060,8 @@ 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

sysdeps/unix/sysv/linux/i386/libc.abilist

@@ -2226,6 +2226,8 @@ 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

sysdeps/unix/sysv/linux/ia64/libc.abilist

@@ -2092,6 +2092,8 @@ 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

sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist

@@ -142,6 +142,8 @@ 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 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0x98
 GLIBC_2.4 _IO_2_1_stdin_ D 0x98

sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist

@@ -2172,6 +2172,8 @@ 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

sysdeps/unix/sysv/linux/microblaze/be/libc.abilist

@@ -2152,3 +2152,5 @@ 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

sysdeps/unix/sysv/linux/microblaze/le/libc.abilist

@@ -2149,3 +2149,5 @@ 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

sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist

@@ -2143,6 +2143,8 @@ 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

sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist

@@ -2141,6 +2141,8 @@ 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

sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist

@@ -2149,6 +2149,8 @@ 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

sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist

@@ -2143,6 +2143,8 @@ 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

sysdeps/unix/sysv/linux/nios2/libc.abilist

@@ -2190,3 +2190,5 @@ 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

sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist

@@ -2199,6 +2199,8 @@ 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

sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist

@@ -2232,6 +2232,8 @@ 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

sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist

@@ -2062,6 +2062,8 @@ 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

sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist

@@ -2352,3 +2352,5 @@ 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

sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist

@@ -2119,3 +2119,5 @@ 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

sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist

@@ -2197,6 +2197,8 @@ 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

sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist

@@ -2098,6 +2098,8 @@ 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

sysdeps/unix/sysv/linux/sh/be/libc.abilist

@@ -2067,6 +2067,8 @@ 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

sysdeps/unix/sysv/linux/sh/le/libc.abilist

@@ -2064,6 +2064,8 @@ 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

sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist

@@ -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

sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist

@@ -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

sysdeps/unix/sysv/linux/x86_64/64/libc.abilist

@@ -2073,6 +2073,8 @@ 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

sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist

@@ -2170,3 +2170,5 @@ 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