diff options
39 files changed, 129 insertions, 0 deletions
@@ -24,6 +24,11 @@ Major new features: same functionality as madvise but alters the target process identified by the pidfd. +* On Linux, the process_mrelease function has been added. It allows a + caller to release the memory of a dying process. The release of the + memory is carried out in the context of the caller, using the caller's + CPU affinity, and priority with CPU usage accounted to the caller. + Deprecated and removed features, and other changes affecting compatibility: * Support for prelink will be removed in the next release; this includes diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 627506daad..9e691fa103 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -129,6 +129,7 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \ tst-epoll \ tst-getauxval \ tst-pidfd \ + tst-process_mrelease \ # tests # process_madvise requires CAP_SYS_ADMIN. diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions index c13a3c4fe7..66a995d3dc 100644 --- a/sysdeps/unix/sysv/linux/Versions +++ b/sysdeps/unix/sysv/linux/Versions @@ -304,6 +304,7 @@ libc { pidfd_getfd; pidfd_send_signal; process_madvise; + process_mrelease; } 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 4d8e64ce04..027a1cf531 100644 --- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist @@ -2620,3 +2620,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist index 36f3129257..703fcf5deb 100644 --- a/sysdeps/unix/sysv/linux/alpha/libc.abilist +++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist @@ -2717,6 +2717,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 2a1e346d4b..28c52dcbac 100644 --- a/sysdeps/unix/sysv/linux/arc/libc.abilist +++ b/sysdeps/unix/sysv/linux/arc/libc.abilist @@ -2381,3 +2381,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist index 25de8a018c..c3adade814 100644 --- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist @@ -500,6 +500,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 e9cf9b1593..33a90a248e 100644 --- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist @@ -497,6 +497,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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/bits/mman_ext.h b/sysdeps/unix/sysv/linux/bits/mman_ext.h index 20960e7df5..97234a7adf 100644 --- a/sysdeps/unix/sysv/linux/bits/mman_ext.h +++ b/sysdeps/unix/sysv/linux/bits/mman_ext.h @@ -30,4 +30,6 @@ extern __ssize_t process_madvise (int __pid_fd, const struct iovec* __iov, unsigned __flags) __THROW; +extern int process_mrelease (int pidfd, unsigned int flags) __THROW; + #endif /* __USE_GNU */ diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist index 66c2f28c43..23a00cfc0b 100644 --- a/sysdeps/unix/sysv/linux/csky/libc.abilist +++ b/sysdeps/unix/sysv/linux/csky/libc.abilist @@ -2656,3 +2656,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist index 527880dc06..93e1068208 100644 --- a/sysdeps/unix/sysv/linux/hppa/libc.abilist +++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist @@ -2605,6 +2605,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 1497b8a2c3..356b05cae4 100644 --- a/sysdeps/unix/sysv/linux/i386/libc.abilist +++ b/sysdeps/unix/sysv/linux/i386/libc.abilist @@ -2789,6 +2789,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 abe351d0b4..58e51aae4b 100644 --- a/sysdeps/unix/sysv/linux/ia64/libc.abilist +++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist @@ -2555,6 +2555,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 130f7a6b04..ea4a19cbc2 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist @@ -501,6 +501,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 cf59edb383..217717859c 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist @@ -2732,6 +2732,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 f1b927d63d..0e373d5c89 100644 --- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist @@ -2705,3 +2705,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist index 9bb7c76f94..569d3e5556 100644 --- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist @@ -2702,3 +2702,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist index 03e7820eea..7ccc7f93eb 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist @@ -2697,6 +2697,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 3d70dc1140..d197f0bd5d 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist @@ -2695,6 +2695,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 5498e2ee30..4a8e857e53 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist @@ -2703,6 +2703,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 dbebed5d36..e0a170c030 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist @@ -2606,6 +2606,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 a0bfa86068..6f809245c9 100644 --- a/sysdeps/unix/sysv/linux/nios2/libc.abilist +++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist @@ -2744,3 +2744,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/or1k/libc.abilist b/sysdeps/unix/sysv/linux/or1k/libc.abilist index 7d09a03d0e..1fc9e27c27 100644 --- a/sysdeps/unix/sysv/linux/or1k/libc.abilist +++ b/sysdeps/unix/sysv/linux/or1k/libc.abilist @@ -2127,3 +2127,4 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist index db8fc28e75..01ba1dd9ec 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist @@ -2759,6 +2759,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 e6cbb83b26..263231a396 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist @@ -2792,6 +2792,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 162241fc68..2c3c3af8fb 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist @@ -2514,6 +2514,7 @@ GLIBC_2.36 pidfd_getfd F GLIBC_2.36 pidfd_open F GLIBC_2.36 pidfd_send_signal F GLIBC_2.36 process_madvise F +GLIBC_2.36 process_mrelease 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 2845ee2015..4138874b38 1 |