linux: Add pidfd_send_signal

This was added on Linux 5.1(3eb39f47934f9d5a3027fe00d906a45fe3a15fad)
as a way to avoid the race condition of using kill (where PID might be
reused by the kernel between between obtaining the pid and sending the
signal).

If the siginfo_t argument is NULL then pidfd_send_signal is equivalent
to kill.  If it is not NULL pidfd_send_signal is equivalent to
rt_sigqueueinfo.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

diff --git a/NEWS b/NEWS
index 278288f7687fb760f8816fc679e2bd7907387f71..ad0c08d8ca80d19bcfae579d5f29a3fbae1d7797 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -16,9 +16,9 @@ Major new features:
   -z pack-relative-relocs option, which is supported for some targets
   in recent binutils versions.  Lazy binding doesn't apply to DT_RELR.
 
-* On Linux, the pidfd_open and pidfd_getfd functions have been added.
-  The pidfd functionality provides access to a process while avoiding
-  the issue of PID reuse on tranditional Unix systems.
+* On Linux, the pidfd_open, pidfd_getfd, and pidfd_send_signal functions
+  have been added.  The pidfd functionality provides access to a process
+  while avoiding the issue of PID reuse on tranditional Unix systems.
 
 Deprecated and removed features, and other changes affecting compatibility:
 

diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index 78912c0484a47149bc1925bbe665a6ef953b899a..694c64a5bc4f80f09c96861462c037c5ff6b359d 100644 (file)
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -302,6 +302,7 @@ libc {
   GLIBC_2.36 {
     pidfd_open;
     pidfd_getfd;
+    pidfd_send_signal;
   }
   GLIBC_PRIVATE {
     # functions used in other libraries

diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index 1acaa31519c4744d17bd950a52624f022d14f5ba..760212963173d629f49a8e7632d1cafaa30f0e40 100644 (file)
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2618,3 +2618,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index fa2018b88a4a1144958cf4d7b80da56e2ec7e1f6..5b39d6023cee3ad999bd872e5039a2619881b410 100644 (file)
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -2715,6 +2715,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
index 4ed3f76c4f0fd2e7a6055878b4a4d5e976bd873e..e413302f2eec1e04b2f63375f1a22efda90b5f55 100644 (file)
--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -2379,3 +2379,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index edc7cf524ec7bc9f866673be97f740a54a09ed73..ade1b93d136f26cf0d3936d6df49a543a388fef3 100644 (file)
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -498,6 +498,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index 6554476cd2e26661a42fda7a5aadad0901f5ff89..10e91537fae106c314860f54123fbddcd1c21078 100644 (file)
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -495,6 +495,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
index 201ec9a9665e0d38d7c74608b28cccb121096869..22618c7aaa990a0f7aef726db2ba5e29793d24bc 100644 (file)
--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -2654,3 +2654,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
index 116369f2383e57472e2001c21a33a3a8c0652915..e2aea90c74ce5dcc3bb5bf8efdcbb5f5f8be78f7 100644 (file)
--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
@@ -2603,6 +2603,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index 2c5aea2d0dd071bd3764a04fd840febc4bf99f63..29ecca26bb95787f1056e496b26a6f1791d88501 100644 (file)
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -2787,6 +2787,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist
index 4bb67cc684beafa91c14b3ea29137b716a0fc2e3..69a2ca2391c85bfe5953bb52821ad4984d69c5fe 100644 (file)
--- a/sysdeps/unix/sysv/linux/ia64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist
@@ -2553,6 +2553,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
index dbe82628b00f24246282d70f467b05848409d084..23cc4ddd8a10e219437ec63aa5bf359c0f920081 100644 (file)
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
@@ -499,6 +499,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0x98
 GLIBC_2.4 _IO_2_1_stdin_ D 0x98

diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
index e42d47632e6b852ca9fcbd2c5bf2d2884dc2570e..2d1d8a3d0cefe507f03c51a5c2c8531a098c7553 100644 (file)
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
@@ -2730,6 +2730,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
index 0b79ff3a37f793c72706137429b06c4bd84811b1..7b6e88bdb97e451e95c5f92abc6b1b318254a161 100644 (file)
--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
@@ -2703,3 +2703,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index d2f0713d1f45f1132010151c27841f8f790dde03..155c97479065a777c6bc3284ab2265851fd33957 100644 (file)
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2700,3 +2700,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
index 382852234f3b41bdea9efe45e1e87fcf4ccf2bb5..7a811120ea74732c6dd184f104060ea1a0c1613b 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
@@ -2695,6 +2695,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
index cb02b6df77e55855c81664d795600943731a0fa8..7d28dca5c190718cda4b9bf958998b4e8d7f05dc 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
@@ -2693,6 +2693,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index 7e62a8b7fcf1417d3dbd0011bb65b67c0f23d715..41790f0d63ff1b15f93554dfb4b24268921df7ab 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -2701,6 +2701,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
index 63840726feef90a48be83365bb35cf186b66cd50..9c15006c123264a436633104b29a9221e8b8b8c6 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
@@ -2604,6 +2604,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
index e4608208a850c2ece3785866296148050391b013..27c0498b602aba1c5f3d4ba9cb76afd9219aaf2b 100644 (file)
--- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
@@ -2742,3 +2742,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/or1k/libc.abilist b/sysdeps/unix/sysv/linux/or1k/libc.abilist
index 97c37b3f52319a5cab41e781bb48ce4975ba4d3d..e500d4756f5fe46a63e72ec20a8ff56a8bcdcee8 100644 (file)
--- a/sysdeps/unix/sysv/linux/or1k/libc.abilist
+++ b/sysdeps/unix/sysv/linux/or1k/libc.abilist
@@ -2125,3 +2125,4 @@ GLIBC_2.35 writev F
 GLIBC_2.35 wscanf F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
index 0d017c3119999d3bed5087f5e1afaf67cc3a1240..adb21db204a36d598c9af17871e5a433573ad79f 100644 (file)
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
@@ -2757,6 +2757,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
index 5e61dfbd7845954cdc98074f381219768eff862d..28a08c4afb2c63889cfbdfca7fd784ac3b48debe 100644 (file)
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
@@ -2790,6 +2790,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
index a7ddc5022e60a0bbb426b571cf9e0fc8295ae6bc..98c5f3e61ca4e06e4be85726e6d778b392b603d1 100644 (file)
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
@@ -2512,6 +2512,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
index 78117f1deacb57f3c7addb2b031977bfb6644d73..31e5aa90cdda88b9117b55a557eb288a5939b432 100644 (file)
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
@@ -2814,3 +2814,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
index 8d935d09aaeca5a122551baaba2ab00c497bdf75..87d90bf6684cc8b140d99a9b17efee1f39609d30 100644 (file)
--- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
@@ -2381,3 +2381,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
index f373fa0e25c9e9ba7c91d915fdf1d8a75034d806..b4a8f56aa24642d943c7c32b37bfe2daf39107a0 100644 (file)
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
@@ -2581,3 +2581,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F

diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index 33a00c0a03fdef146f7a05dfba7e4768a03a3d1b..e4a58cc1451ddba47aae2437734b27afbcad9ec3 100644 (file)
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -2755,6 +2755,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
index 32c3e171add462c914913834a97e0eee784b7272..ef0f0c3fa177645cf3db3958304a718e8e9a8a6d 100644 (file)
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -2549,6 +2549,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
index acc7b4a3b70bb019c3a79fe68b023402045047f6..603d50668f20f6d10f91a56ee3efcd96eed6be7e 100644 (file)
--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
@@ -2610,6 +2610,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
index 10c0727830fe229d04ef5779759dd7c840f9b4b3..078cdf05a714beebefa21af7abe9461c682764bb 100644 (file)
--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
@@ -2607,6 +2607,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index 1c389b2fa93e81128a04f1751d74d4e1ae963467..735505ac516ec89d2e142c8d00288e34779c4ad1 100644 (file)
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -2750,6 +2750,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
index 4c49c781e01c445931ab00920a71216f35edc7a4..48df7952cdf1390f46e9e3134a590c4f0ff81351 100644 (file)
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
@@ -2576,6 +2576,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/sys/pidfd.h b/sysdeps/unix/sysv/linux/sys/pidfd.h
index 7194fc2a14379a125dc70cef99e407169ad0fd48..7bbc5e4863ce645e60093dff9d9977f502883671 100644 (file)
--- a/sysdeps/unix/sysv/linux/sys/pidfd.h
+++ b/sysdeps/unix/sysv/linux/sys/pidfd.h
@@ -38,4 +38,12 @@ extern int pidfd_open (__pid_t __pid, unsigned int __flags) __THROW;
 extern int pidfd_getfd (int __pidfd, int __targetfd,
                        unsigned int __flags) __THROW;
 
+/* Sends the signal SIG to the target process referred by the PIDFD.  If
+   INFO points to a siginfo_t buffer, it will be populated.
+
+   The FLAGS argument is reserved for future use, it must be specified
+   as 0.  */
+extern int pidfd_send_signal (int __pidfd, int __sig, siginfo_t *__info,
+                             unsigned int __flags) __THROW;
+
 #endif /* _PIDFD_H  */

diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 5dd7a12b7603f158202b0740feef1a9d67658f58..d9653bb433ce64c99faad0b9ab37ca43cb888eb7 100644 (file)
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -42,6 +42,7 @@ pipe2         -       pipe2           i:fi    __pipe2         pipe2
 pidfd_open     EXTRA   pidfd_open      i:iU    pidfd_open
 pidfd_getfd    EXTRA   pidfd_getfd     i:iiU   pidfd_getfd
 pivot_root     EXTRA   pivot_root      i:ss    pivot_root
+pidfd_send_signal      EXTRA   pidfd_send_signal       i:iiPU  pidfd_send_signal
 query_module   EXTRA   query_module    i:sipip __compat_query_module   query_module@GLIBC_2.0:GLIBC_2.23
 quotactl       EXTRA   quotactl        i:isip  quotactl
 remap_file_pages -     remap_file_pages i:pUiUi        __remap_file_pages remap_file_pages

diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index cef6e6593361acd4f1c68c6736bbcdc7bb3bdd58..1629fb77621a28468ee65b1c09940b38c91c3f54 100644 (file)
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -2527,6 +2527,7 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index 4ac98b6823bf30554c8433edbffc842743296c5f..ee9674ff75df49cf2450147328d80ec618849277 100644 (file)
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2633,3 +2633,4 @@ GLIBC_2.35 epoll_pwait2 F
 GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.36 pidfd_getfd F
 GLIBC_2.36 pidfd_open F
+GLIBC_2.36 pidfd_send_signal F