diff options
Diffstat (limited to 'sysdeps/unix/sysv')
32 files changed, 195 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 52ac6ad484..d2f0b60ea9 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -53,7 +53,8 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \ tst-quota tst-sync_file_range tst-sysconf-iov_max tst-ttyname \ test-errno-linux tst-memfd_create tst-mlock2 tst-pkey \ - tst-rlimit-infinity tst-ofdlocks tst-gettid tst-gettid-kill + tst-rlimit-infinity tst-ofdlocks tst-gettid tst-gettid-kill \ + tst-tgkill tests-internal += tst-ofdlocks-compat # Generate the list of SYS_* macros for the system calls (__NR_* @@ -115,6 +116,7 @@ $(objpfx)tst-mman-consts.out: ../sysdeps/unix/sysv/linux/tst-mman-consts.py $(objpfx)tst-gettid: $(shared-thread-library) $(objpfx)tst-gettid-kill: $(shared-thread-library) +$(objpfx)tst-tgkill: $(shared-thread-library) endif # $(subdir) == misc diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions index 5166ccff25..c7137e2c2c 100644 --- a/sysdeps/unix/sysv/linux/Versions +++ b/sysdeps/unix/sysv/linux/Versions @@ -175,7 +175,7 @@ libc { getcpu; } GLIBC_2.30 { - gettid; + gettid; tgkill; } 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 b7283ad486..324909d553 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist @@ -2142,4 +2142,5 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist index a817e683a4..084e475569 100644 --- a/sysdeps/unix/sysv/linux/alpha/libc.abilist +++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist @@ -2217,6 +2217,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/arm/libc.abilist b/sysdeps/unix/sysv/linux/arm/libc.abilist index 97b6cbf903..f58d16e210 100644 --- a/sysdeps/unix/sysv/linux/arm/libc.abilist +++ b/sysdeps/unix/sysv/linux/arm/libc.abilist @@ -127,6 +127,7 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _Exit F GLIBC_2.4 _IO_2_1_stderr_ D 0xa0 diff --git a/sysdeps/unix/sysv/linux/bits/signal_ext.h b/sysdeps/unix/sysv/linux/bits/signal_ext.h new file mode 100644 index 0000000000..c07b869fab --- /dev/null +++ b/sysdeps/unix/sysv/linux/bits/signal_ext.h @@ -0,0 +1,31 @@ +/* System-specific extensions of <signal.h>, Linux version. + Copyright (C) 2019 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _SIGNAL_H +# error "Never include <bits/signal_ext.h> directly; use <signal.h> instead." +#endif + +#ifdef __USE_GNU + +/* Send SIGNAL to the thread TID in the thread group (process) + identified by TGID. This function behaves like kill, but also + fails with ESRCH if the specified TID does not belong to the + specified thread group. */ +extern int tgkill (__pid_t __tgid, __pid_t __tid, int __signal); + +#endif /* __USE_GNU */ diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist index 796e622a6d..38f6abaa30 100644 --- a/sysdeps/unix/sysv/linux/csky/libc.abilist +++ b/sysdeps/unix/sysv/linux/csky/libc.abilist @@ -2086,4 +2086,5 @@ GLIBC_2.29 xencrypt F GLIBC_2.29 xprt_register F GLIBC_2.29 xprt_unregister F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist index 4e7d71d112..eb628f907b 100644 --- a/sysdeps/unix/sysv/linux/hppa/libc.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist @@ -2038,6 +2038,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist index 11bd8c601a..6f240d9a59 100644 --- a/sysdeps/unix/sysv/linux/i386/libc.abilist +++ b/sysdeps/unix/sysv/linux/i386/libc.abilist @@ -2204,6 +2204,7 @@ GLIBC_2.3.4 vm86 F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist index 589cce5b8d..e589e3d7e2 100644 --- a/sysdeps/unix/sysv/linux/ia64/libc.abilist +++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist @@ -2070,6 +2070,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist index 4b3727a91d..02c3ceee8d 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist @@ -128,6 +128,7 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _Exit F GLIBC_2.4 _IO_2_1_stderr_ D 0x98 diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist index 4be30c0339..f9a86bd951 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist @@ -2147,6 +2147,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/microblaze/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/libc.abilist index e0010965a8..d153fe0df5 100644 --- a/sysdeps/unix/sysv/linux/microblaze/libc.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/libc.abilist @@ -2134,4 +2134,5 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist index 2a62f67741..fb3a9b18fc 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist @@ -2121,6 +2121,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_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 5a23f11fc9..22c80418f6 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist @@ -2119,6 +2119,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_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 32532a19da..a32aafb552 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist @@ -2127,6 +2127,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_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 882f5cb5bf..45342a587e 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist @@ -2121,6 +2121,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist index c99a299bab..fe1e96c170 100644 --- a/sysdeps/unix/sysv/linux/nios2/libc.abilist +++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist @@ -2175,4 +2175,5 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist index d5f4364197..cbcad5db98 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist @@ -2177,6 +2177,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist index 581fd10290..060994eccf 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist @@ -2210,6 +2210,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist index ce10e0436e..af68ed8d01 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist @@ -2040,6 +2040,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist index 1cc729da7f..d317dc0586 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist @@ -2244,4 +2244,5 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist index 2bda5692f4..07d75c0481 100644 --- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist +++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist @@ -2104,4 +2104,5 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist index dddc138a1e..0fdcd6109c 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist @@ -2172,6 +2172,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist index b2c75a48a8..ca871ad4be 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist @@ -2076,6 +2076,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/sh/libc.abilist b/sysdeps/unix/sysv/linux/sh/libc.abilist index 8b83449b16..b559e5b316 100644 --- a/sysdeps/unix/sysv/linux/sh/libc.abilist +++ b/sysdeps/unix/sysv/linux/sh/libc.abilist @@ -2042,6 +2042,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist index a237be9d93..37daaa28e4 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist @@ -2166,6 +2166,7 @@ GLIBC_2.30 __nldbl_vwarnx F GLIBC_2.30 __nldbl_warn F GLIBC_2.30 __nldbl_warnx F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist index b850694434..5f0a3adc3c 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist @@ -2093,6 +2093,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_chk F diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index 25424e1399..e374f97b5f 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -111,3 +111,4 @@ memfd_create EXTRA memfd_create i:si memfd_create pkey_alloc EXTRA pkey_alloc i:ii pkey_alloc pkey_free EXTRA pkey_free i:i pkey_free gettid EXTRA gettid Ei: __gettid gettid +tgkill EXTRA tgkill i:iii __tgkill tgkill diff --git a/sysdeps/unix/sysv/linux/tst-tgkill.c b/sysdeps/unix/sysv/linux/tst-tgkill.c new file mode 100644 index 0000000000..818e2f58da --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-tgkill.c @@ -0,0 +1,132 @@ +/* Smoke test for the tgkill system call. + Copyright (C) 2019 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 + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <signal.h> +#include <support/check.h> +#include <support/namespace.h> +#include <support/xthread.h> +#include <unistd.h> + +/* Number of times sigusr1_handler has been invoked. */ +static volatile sig_atomic_t signals_delivered; + +/* Expected TID of the thread receiving the signal. */ +static pid_t expected_signal_tid; + +static void +sigusr1_handler (int signo) +{ + TEST_COMPARE (expected_signal_tid, gettid ()); + ++signals_delivered; +} + +struct pid_and_tid +{ + pid_t pid; + pid_t tid; +}; + +/* Send signals from the subprocess which are not expected to be + delivered. There is no handler for SIGUSR2, so delivery will + result in a test failure. CLOSURE must point to a valid PID/TID + combination that is still running. */ +static void +subprocess_no_tid_match (void *closure) +{ + struct pid_and_tid *ids = closure; + TEST_COMPARE (tgkill (ids->pid, gettid (), SIGUSR2), -1); + TEST_COMPARE (errno, ESRCH); + + TEST_COMPARE (tgkill (getpid (), ids->tid, SIGUSR2), -1); + TEST_COMPARE (errno, ESRCH); + + TEST_COMPARE (tgkill (getppid (), gettid (), SIGUSR2), -1); + TEST_COMPARE (errno, ESRCH); +} + +/* Called from threadfunc below. */ +static void +subprocess (void *closure) +{ + int original_tid = expected_signal_tid; + + /* Do not expect that the folloing signals are delivered to the + subprocess. The parent process retains the original + expected_signal_tid value. */ + expected_signal_tid = 0; + TEST_COMPARE (tgkill (getpid (), original_tid, SIGUSR1), -1); + TEST_COMPARE (errno, ESRCH); + TEST_COMPARE (tgkill (getppid (), gettid (), SIGUSR1), -1); + TEST_COMPARE (errno, ESRCH); + TEST_COMPARE (expected_signal_tid, 0); + + /* This call has the correct PID/TID combination and is therefore + expected to suceed. */ + TEST_COMPARE (tgkill (getppid (), original_tid, SIGUSR1), 0); +} + +static void * +threadfunc (void *closure) +{ + TEST_VERIFY (gettid () != getpid ()); + expected_signal_tid = gettid (); + TEST_COMPARE (tgkill (getpid (), gettid (), SIGUSR1), 0); + TEST_COMPARE (signals_delivered, 1); + signals_delivered = 0; + + support_isolate_in_subprocess (subprocess, NULL); + + /* Check that exactly one signal arrived from the subprocess. */ + TEST_COMPARE (signals_delivered, 1); + + support_isolate_in_subprocess (subprocess_no_tid_match, + &(struct pid_and_tid) + { + .pid = getpid (), + .tid = gettid (), + }); + + support_isolate_in_subprocess (subprocess_no_tid_match, + &(struct pid_and_tid) + { + .pid = getpid (), + .tid = getpid (), + }); + + return NULL; +} + +static int +do_test (void) +{ + TEST_VERIFY_EXIT (signal (SIGUSR1, sigusr1_handler) != SIG_ERR); + + expected_signal_tid = gettid (); + TEST_COMPARE (gettid (), getpid ()); + TEST_COMPARE (tgkill (getpid (), gettid (), SIGUSR1), 0); + TEST_COMPARE (signals_delivered, 1); + signals_delivered = 0; + + xpthread_join (xpthread_create (NULL, threadfunc, NULL)); + + TEST_VERIFY (signal (SIGUSR1, SIG_DFL) == sigusr1_handler); + return 0; +} + +#include <support/test-driver.c> diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist index c6f22f0c7b..c82b3ba7b8 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist @@ -2051,6 +2051,7 @@ GLIBC_2.3.4 setsourcefilter F GLIBC_2.3.4 xdr_quad_t F GLIBC_2.3.4 xdr_u_quad_t F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F GLIBC_2.4 __confstr_chk F GLIBC_2.4 __fgets_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 1184385bce..ed89c34c55 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist @@ -2150,4 +2150,5 @@ GLIBC_2.29 getcpu F GLIBC_2.29 posix_spawn_file_actions_addchdir_np F GLIBC_2.29 posix_spawn_file_actions_addfchdir_np F GLIBC_2.30 gettid F +GLIBC_2.30 tgkill F GLIBC_2.30 twalk_r F |