From b04beebf0731c0da49bf9113bf299acf56e4c2e5 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Wed, 30 Nov 2016 16:23:58 +0100 Subject: [PATCH] ld.so: Remove __libc_memalign It is no longer needed since commit 6c444ad6e953dbdf9c7be065308a0a777 (elf: Do not use memalign for TCB/TLS blocks allocation [BZ #17730]). Applications do not link against ld.so and will use the definition in libc.so, so there is no ABI impact. --- ChangeLog | 57 ++++++++++++++++++++++ elf/Versions | 4 +- elf/dl-minimal.c | 18 +++---- sysdeps/generic/localplt.data | 6 +-- sysdeps/nacl/ld.abilist | 1 - sysdeps/unix/sysv/linux/aarch64/ld.abilist | 1 - sysdeps/unix/sysv/linux/aarch64/localplt.data | 7 ++- sysdeps/unix/sysv/linux/alpha/ld.abilist | 1 - sysdeps/unix/sysv/linux/alpha/localplt.data | 7 ++- sysdeps/unix/sysv/linux/arm/ld.abilist | 1 - sysdeps/unix/sysv/linux/arm/localplt.data | 7 ++- sysdeps/unix/sysv/linux/hppa/ld.abilist | 1 - sysdeps/unix/sysv/linux/hppa/localplt.data | 6 +-- sysdeps/unix/sysv/linux/i386/ld.abilist | 1 - sysdeps/unix/sysv/linux/i386/localplt.data | 6 +-- sysdeps/unix/sysv/linux/ia64/ld.abilist | 1 - sysdeps/unix/sysv/linux/ia64/localplt.data | 6 +-- sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist | 1 - sysdeps/unix/sysv/linux/m68k/localplt.data | 6 +-- sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist | 1 - sysdeps/unix/sysv/linux/microblaze/ld.abilist | 1 - sysdeps/unix/sysv/linux/microblaze/localplt.data | 7 ++- sysdeps/unix/sysv/linux/mips/mips32/ld.abilist | 1 - sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist | 1 - sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist | 1 - sysdeps/unix/sysv/linux/nios2/ld.abilist | 1 - sysdeps/unix/sysv/linux/nios2/localplt.data | 6 +-- .../sysv/linux/powerpc/powerpc32/fpu/localplt.data | 6 +-- .../unix/sysv/linux/powerpc/powerpc32/ld.abilist | 1 - .../linux/powerpc/powerpc32/nofpu/localplt.data | 6 +-- .../sysv/linux/powerpc/powerpc64/ld-le.abilist | 1 - .../unix/sysv/linux/powerpc/powerpc64/ld.abilist | 1 - .../sysv/linux/powerpc/powerpc64/localplt.data | 6 +-- sysdeps/unix/sysv/linux/s390/localplt.data | 13 +---- sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist | 1 - sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist | 1 - sysdeps/unix/sysv/linux/sh/ld.abilist | 1 - sysdeps/unix/sysv/linux/sh/localplt.data | 6 +-- sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist | 1 - .../unix/sysv/linux/sparc/sparc32/localplt.data | 6 +-- sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist | 1 - .../unix/sysv/linux/sparc/sparc64/localplt.data | 6 +-- .../sysv/linux/tile/tilegx/tilegx32/ld.abilist | 1 - .../sysv/linux/tile/tilegx/tilegx64/ld.abilist | 1 - sysdeps/unix/sysv/linux/tile/tilepro/ld.abilist | 1 - sysdeps/unix/sysv/linux/x86_64/64/ld.abilist | 1 - sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist | 1 - sysdeps/x86_64/localplt.data | 6 +-- 48 files changed, 106 insertions(+), 119 deletions(-) diff --git a/ChangeLog b/ChangeLog index d017478..09c2e52 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,62 @@ 2016-11-30 Florian Weimer + Remove __libc_memalign from ld.so because it is unused. + * elf/dl-minimal.c: Update comment on the malloc implementation. + (malloc): Renamed from __libc_memalign, replacing the original + malloc implementation. Replace the align parameter with + MALLOC_ALIGNMENT. + * elf/Versions (ld): Update comment and remove __libc_memalign. + * sysdeps/nacl/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/aarch64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/alpha/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/arm/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/hppa/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/i386/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/ia64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/microblaze/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/mips/mips32/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/nios2/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist: Likewise. + * sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/sh/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/tile/tilepro/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/x86_64/64/ld.abilist: Likewise. + * sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist: Likewise. + * sysdeps/generic/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/aarch64/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/alpha/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/arm/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/hppa/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/i386/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/ia64/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/m68k/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/microblaze/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/nios2/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/localplt.data + (ld.so): Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/localplt.data + (ld.so): Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc64/localplt.data (ld.so): + Likewise. + * sysdeps/unix/sysv/linux/s390/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/sh/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data (ld.so): Likewise. + * sysdeps/unix/sysv/linux/sparc/sparc64/localplt.data (ld.so): Likewise. + * sysdeps/x86_64/localplt.data (ld.so): Likewise. + +2016-11-30 Florian Weimer + [BZ #16628] Implement _dl_catch_error, _dl_signal_error in libc.so. * elf/dl-error-skeleton.c: Rename from elf/dl-error.c. diff --git a/elf/Versions b/elf/Versions index 05e5449..08f76a7 100644 --- a/elf/Versions +++ b/elf/Versions @@ -34,8 +34,8 @@ libc { ld { GLIBC_2.0 { - # Function from libc.so which must be shared with libc. - __libc_memalign; calloc; free; malloc; realloc; + # Functions which are interposed from libc.so. + calloc; free; malloc; realloc; _r_debug; } diff --git a/elf/dl-minimal.c b/elf/dl-minimal.c index 6034b5a..116ec49 100644 --- a/elf/dl-minimal.c +++ b/elf/dl-minimal.c @@ -31,8 +31,10 @@ #include -/* Minimal `malloc' allocator for use while loading shared libraries. - No block is ever freed. */ +/* Minimal malloc allocator for used during initial link. After the + initial link, a full malloc implementation is interposed, either + the one in libc, or a different one supplied by the user through + interposition. */ static void *alloc_ptr, *alloc_end, *alloc_last_block; @@ -49,7 +51,7 @@ extern unsigned long int weak_function strtoul (const char *nptr, /* Allocate an aligned memory block. */ void * weak_function -__libc_memalign (size_t align, size_t n) +malloc (size_t n) { if (alloc_end == 0) { @@ -62,8 +64,8 @@ __libc_memalign (size_t align, size_t n) } /* Make sure the allocation pointer is ideally aligned. */ - alloc_ptr = (void *) 0 + (((alloc_ptr - (void *) 0) + align - 1) - & ~(align - 1)); + alloc_ptr = (void *) 0 + (((alloc_ptr - (void *) 0) + MALLOC_ALIGNMENT - 1) + & ~(MALLOC_ALIGNMENT - 1)); if (alloc_ptr + n >= alloc_end || n >= -(uintptr_t) alloc_ptr) { @@ -88,12 +90,6 @@ __libc_memalign (size_t align, size_t n) return alloc_last_block; } -void * weak_function -malloc (size_t n) -{ - return __libc_memalign (MALLOC_ALIGNMENT, n); -} - /* We use this function occasionally since the real implementation may be optimized when it can assume the memory it returns already is set to NUL. */ diff --git a/sysdeps/generic/localplt.data b/sysdeps/generic/localplt.data index 5cf53a4..81c741b 100644 --- a/sysdeps/generic/localplt.data +++ b/sysdeps/generic/localplt.data @@ -7,10 +7,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/nacl/ld.abilist b/sysdeps/nacl/ld.abilist index 242f6d0..0a52a24 100644 --- a/sysdeps/nacl/ld.abilist +++ b/sysdeps/nacl/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.22 GLIBC_2.22 A -GLIBC_2.22 __libc_memalign F GLIBC_2.22 __libc_stack_end D 0x4 GLIBC_2.22 __stack_chk_guard D 0x4 GLIBC_2.22 __tls_get_addr F diff --git a/sysdeps/unix/sysv/linux/aarch64/ld.abilist b/sysdeps/unix/sysv/linux/aarch64/ld.abilist index ab08a98..ec7f617 100644 --- a/sysdeps/unix/sysv/linux/aarch64/ld.abilist +++ b/sysdeps/unix/sysv/linux/aarch64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.17 GLIBC_2.17 A -GLIBC_2.17 __libc_memalign F GLIBC_2.17 __libc_stack_end D 0x8 GLIBC_2.17 __stack_chk_guard D 0x8 GLIBC_2.17 __tls_get_addr F diff --git a/sysdeps/unix/sysv/linux/aarch64/localplt.data b/sysdeps/unix/sysv/linux/aarch64/localplt.data index e431f36..bb18ff9 100644 --- a/sysdeps/unix/sysv/linux/aarch64/localplt.data +++ b/sysdeps/unix/sysv/linux/aarch64/localplt.data @@ -7,11 +7,10 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader needs __tls_get_addr for TLS, and uses __libc_memalign -# internally to allocate aligned TLS storage. The other malloc family of -# functions are expected to allow user symbol interposition. +# The dynamic loader needs __tls_get_addr for TLS. ld.so: __tls_get_addr -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/alpha/ld.abilist b/sysdeps/unix/sysv/linux/alpha/ld.abilist index 9faf6eb..ca34294 100644 --- a/sysdeps/unix/sysv/linux/alpha/ld.abilist +++ b/sysdeps/unix/sysv/linux/alpha/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x28 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/alpha/localplt.data b/sysdeps/unix/sysv/linux/alpha/localplt.data index 2984393..cca17f1 100644 --- a/sysdeps/unix/sysv/linux/alpha/localplt.data +++ b/sysdeps/unix/sysv/linux/alpha/localplt.data @@ -24,11 +24,10 @@ libm.so: matherr # We used to offer inline functions that used this, so it must be exported. # Ought to reorg things such that carg isn't thus forced to use a plt. libm.so: __atan2 -# The dynamic loader needs __tls_get_addr for TLS, and uses __libc_memalign -# internally to allocate aligned TLS storage. The other malloc family of -# functions are expected to allow user symbol interposition. +# The dynamic loader needs __tls_get_addr for TLS. ld.so: __tls_get_addr ? -ld.so: __libc_memalign + RELA R_ALPHA_GLOB_DAT +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc + RELA R_ALPHA_GLOB_DAT ld.so: calloc + RELA R_ALPHA_GLOB_DAT ld.so: realloc + RELA R_ALPHA_GLOB_DAT diff --git a/sysdeps/unix/sysv/linux/arm/ld.abilist b/sysdeps/unix/sysv/linux/arm/ld.abilist index 4de351e..cbf3a3c 100644 --- a/sysdeps/unix/sysv/linux/arm/ld.abilist +++ b/sysdeps/unix/sysv/linux/arm/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.4 GLIBC_2.4 A -GLIBC_2.4 __libc_memalign F GLIBC_2.4 __libc_stack_end D 0x4 GLIBC_2.4 __stack_chk_guard D 0x4 GLIBC_2.4 __tls_get_addr F diff --git a/sysdeps/unix/sysv/linux/arm/localplt.data b/sysdeps/unix/sysv/linux/arm/localplt.data index a5ccd7f..8bc876d 100644 --- a/sysdeps/unix/sysv/linux/arm/localplt.data +++ b/sysdeps/unix/sysv/linux/arm/localplt.data @@ -7,11 +7,10 @@ libc.so: realloc libm.so: matherr libpthread.so: __errno_location libpthread.so: raise -# The dynamic loader needs __tls_get_addr for TLS, and uses __libc_memalign -# internally to allocate aligned TLS storage. The other malloc family of -# functions are expected to allow user symbol interposition. +# The dynamic loader needs __tls_get_addr for TLS. ld.so: __tls_get_addr -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/hppa/ld.abilist b/sysdeps/unix/sysv/linux/hppa/ld.abilist index dc3ebf4..fc1c60e 100644 --- a/sysdeps/unix/sysv/linux/hppa/ld.abilist +++ b/sysdeps/unix/sysv/linux/hppa/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.2 GLIBC_2.2 A -GLIBC_2.2 __libc_memalign F GLIBC_2.2 __libc_stack_end D 0x4 GLIBC_2.2 _dl_mcount F GLIBC_2.2 _r_debug D 0x14 diff --git a/sysdeps/unix/sysv/linux/hppa/localplt.data b/sysdeps/unix/sysv/linux/hppa/localplt.data index fea8c9c..9dd81b4 100644 --- a/sysdeps/unix/sysv/linux/hppa/localplt.data +++ b/sysdeps/unix/sysv/linux/hppa/localplt.data @@ -13,10 +13,8 @@ libc.so: sigprocmask libc.so: __errno_location libm.so: matherr libpthread.so: __errno_location -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/i386/ld.abilist b/sysdeps/unix/sysv/linux/i386/ld.abilist index b8914ed..ddf9e78 100644 --- a/sysdeps/unix/sysv/linux/i386/ld.abilist +++ b/sysdeps/unix/sysv/linux/i386/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/i386/localplt.data b/sysdeps/unix/sysv/linux/i386/localplt.data index 48bcc42..2c25849 100644 --- a/sysdeps/unix/sysv/linux/i386/localplt.data +++ b/sysdeps/unix/sysv/linux/i386/localplt.data @@ -7,10 +7,8 @@ libc.so: malloc + REL R_386_GLOB_DAT libc.so: memalign + REL R_386_GLOB_DAT libc.so: realloc + REL R_386_GLOB_DAT libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign + REL R_386_GLOB_DAT +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc + REL R_386_GLOB_DAT ld.so: calloc + REL R_386_GLOB_DAT ld.so: realloc + REL R_386_GLOB_DAT diff --git a/sysdeps/unix/sysv/linux/ia64/ld.abilist b/sysdeps/unix/sysv/linux/ia64/ld.abilist index 9041ccb..9b45d5e 100644 --- a/sysdeps/unix/sysv/linux/ia64/ld.abilist +++ b/sysdeps/unix/sysv/linux/ia64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.2 GLIBC_2.2 A -GLIBC_2.2 __libc_memalign F GLIBC_2.2 __libc_stack_end D 0x8 GLIBC_2.2 _dl_mcount F GLIBC_2.2 _r_debug D 0x28 diff --git a/sysdeps/unix/sysv/linux/ia64/localplt.data b/sysdeps/unix/sysv/linux/ia64/localplt.data index df63530..fd2b98c 100644 --- a/sysdeps/unix/sysv/linux/ia64/localplt.data +++ b/sysdeps/unix/sysv/linux/ia64/localplt.data @@ -6,10 +6,8 @@ libc.so: realloc libm.so: matherr libm.so: matherrf libm.so: matherrl -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist index 4de351e..cbf3a3c 100644 --- a/sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.4 GLIBC_2.4 A -GLIBC_2.4 __libc_memalign F GLIBC_2.4 __libc_stack_end D 0x4 GLIBC_2.4 __stack_chk_guard D 0x4 GLIBC_2.4 __tls_get_addr F diff --git a/sysdeps/unix/sysv/linux/m68k/localplt.data b/sysdeps/unix/sysv/linux/m68k/localplt.data index abfbd34..1a2acfd 100644 --- a/sysdeps/unix/sysv/linux/m68k/localplt.data +++ b/sysdeps/unix/sysv/linux/m68k/localplt.data @@ -6,10 +6,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist index ee34589..3907c9d 100644 --- a/sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/microblaze/ld.abilist b/sysdeps/unix/sysv/linux/microblaze/ld.abilist index f486acb..265085e 100644 --- a/sysdeps/unix/sysv/linux/microblaze/ld.abilist +++ b/sysdeps/unix/sysv/linux/microblaze/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.18 GLIBC_2.18 A -GLIBC_2.18 __libc_memalign F GLIBC_2.18 __libc_stack_end D 0x4 GLIBC_2.18 __stack_chk_guard D 0x4 GLIBC_2.18 __tls_get_addr F diff --git a/sysdeps/unix/sysv/linux/microblaze/localplt.data b/sysdeps/unix/sysv/linux/microblaze/localplt.data index 697fdd0..07bcf3b 100644 --- a/sysdeps/unix/sysv/linux/microblaze/localplt.data +++ b/sysdeps/unix/sysv/linux/microblaze/localplt.data @@ -6,11 +6,10 @@ libc.so: memalign libc.so: realloc libm.so: matherr libpthread.so: __errno_location -# The dynamic loader needs __tls_get_addr for TLS, and uses __libc_memalign -# internally to allocate aligned TLS storage. The other malloc family of -# functions are expected to allow user symbol interposition. +# The dynamic loader needs __tls_get_addr for TLS. ld.so: __tls_get_addr -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/mips/mips32/ld.abilist b/sysdeps/unix/sysv/linux/mips/mips32/ld.abilist index afdb905..651b952 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/ld.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist index 6993e70..bf55148 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist index 759e99b..f7ba5fd 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x28 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/nios2/ld.abilist b/sysdeps/unix/sysv/linux/nios2/ld.abilist index 389bdaa..a127464 100644 --- a/sysdeps/unix/sysv/linux/nios2/ld.abilist +++ b/sysdeps/unix/sysv/linux/nios2/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.21 GLIBC_2.21 A -GLIBC_2.21 __libc_memalign F GLIBC_2.21 __libc_stack_end D 0x4 GLIBC_2.21 __stack_chk_guard D 0x4 GLIBC_2.21 __tls_get_addr F diff --git a/sysdeps/unix/sysv/linux/nios2/localplt.data b/sysdeps/unix/sysv/linux/nios2/localplt.data index a7d774d..584963d 100644 --- a/sysdeps/unix/sysv/linux/nios2/localplt.data +++ b/sysdeps/unix/sysv/linux/nios2/localplt.data @@ -27,10 +27,8 @@ libc.so: __nedf2 libc.so: __eqdf2 libc.so: __extendsfdf2 libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/localplt.data b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/localplt.data index 4ef5bf4..5000631 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/localplt.data +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/localplt.data @@ -5,10 +5,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist index 2eb4d5f..100d133 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/localplt.data b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/localplt.data index c919426..1c20d2f 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/localplt.data +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/localplt.data @@ -35,10 +35,8 @@ libc.so: realloc libm.so: copysignl ? libm.so: fabsl libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist index 27d451b..ef6159b 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld-le.abilist @@ -1,5 +1,4 @@ GLIBC_2.17 GLIBC_2.17 A -GLIBC_2.17 __libc_memalign F GLIBC_2.17 __libc_stack_end D 0x8 GLIBC_2.17 __tls_get_addr F GLIBC_2.17 _dl_mcount F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist index 8914eb0..2c3b74c 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/ld.abilist @@ -3,7 +3,6 @@ GLIBC_2.22 __tls_get_addr_opt F GLIBC_2.23 GLIBC_2.23 A GLIBC_2.23 __parse_hwcap_and_convert_at_platform F GLIBC_2.3 GLIBC_2.3 A -GLIBC_2.3 __libc_memalign F GLIBC_2.3 __libc_stack_end D 0x8 GLIBC_2.3 __tls_get_addr F GLIBC_2.3 _dl_mcount F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/localplt.data b/sysdeps/unix/sysv/linux/powerpc/powerpc64/localplt.data index 2d43472..6f8ed25 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/localplt.data +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/localplt.data @@ -4,10 +4,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to -# allow user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/s390/localplt.data b/sysdeps/unix/sysv/linux/s390/localplt.data index bd1addd..5000631 100644 --- a/sysdeps/unix/sysv/linux/s390/localplt.data +++ b/sysdeps/unix/sysv/linux/s390/localplt.data @@ -5,17 +5,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -# It is also allowed to call __libc_memalign via function-pointer loaded from -# GOT instead of calling via a plt-stub. In this case there is a R_390_GLOB_DAT -# relocation in section .rela.dyn instead of R_390_JMP_SLOT in .rela.plt. -# After commit "elf: Do not use memalign for TCB/TLS blocks allocation -# [BZ #17730]" __libc_memalign is only called in elf/dl-minimal.c: malloc() in -# ld.so and gcc -O2/-O3 leads to R_390_GLOB_DAT. If build with -# -fno-optimize-sibling-calls an R_390_JMP_SLOT is generated. -ld.so: __libc_memalign + RELA R_390_GLOB_DAT +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist index ec7491f..c16b2c1 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist index c2e0d96..5e604f5 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist +++ b/sysdeps/unix/sysv/linux/s390/s390-64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.2 GLIBC_2.2 A -GLIBC_2.2 __libc_memalign F GLIBC_2.2 __libc_stack_end D 0x8 GLIBC_2.2 _dl_mcount F GLIBC_2.2 _r_debug D 0x28 diff --git a/sysdeps/unix/sysv/linux/sh/ld.abilist b/sysdeps/unix/sysv/linux/sh/ld.abilist index dc3ebf4..fc1c60e 100644 --- a/sysdeps/unix/sysv/linux/sh/ld.abilist +++ b/sysdeps/unix/sysv/linux/sh/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.2 GLIBC_2.2 A -GLIBC_2.2 __libc_memalign F GLIBC_2.2 __libc_stack_end D 0x4 GLIBC_2.2 _dl_mcount F GLIBC_2.2 _r_debug D 0x14 diff --git a/sysdeps/unix/sysv/linux/sh/localplt.data b/sysdeps/unix/sysv/linux/sh/localplt.data index e6fb930..f1f5eff 100644 --- a/sysdeps/unix/sysv/linux/sh/localplt.data +++ b/sysdeps/unix/sysv/linux/sh/localplt.data @@ -10,10 +10,8 @@ libc.so: _Unwind_Find_FDE libc.so: _exit libc.so: __errno_location libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist index 3acaae2..fb4bcb0 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.0 GLIBC_2.0 A -GLIBC_2.0 __libc_memalign F GLIBC_2.0 _r_debug D 0x14 GLIBC_2.0 calloc F GLIBC_2.0 free F diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data b/sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data index d5b5895..c9786fd 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/localplt.data @@ -16,10 +16,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate -# aligned TLS storage. The other malloc family of functions are -# expected to allow user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist index 9041ccb..9b45d5e 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.2 GLIBC_2.2 A -GLIBC_2.2 __libc_memalign F GLIBC_2.2 __libc_stack_end D 0x8 GLIBC_2.2 _dl_mcount F GLIBC_2.2 _r_debug D 0x28 diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/localplt.data b/sysdeps/unix/sysv/linux/sparc/sparc64/localplt.data index edceab5..912bd1a 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/localplt.data +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/localplt.data @@ -18,10 +18,8 @@ libc.so: malloc libc.so: memalign libc.so: realloc libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate -# aligned TLS storage. The other malloc family of functions are -# expected to allow user symbol interposition. -ld.so: __libc_memalign +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc ld.so: calloc ld.so: realloc diff --git a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/ld.abilist b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/ld.abilist index 3ab170c..f166310 100644 --- a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/ld.abilist +++ b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.12 GLIBC_2.12 A -GLIBC_2.12 __libc_memalign F GLIBC_2.12 __libc_stack_end D 0x4 GLIBC_2.12 __tls_get_addr F GLIBC_2.12 _dl_mcount F diff --git a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/ld.abilist b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/ld.abilist index aa6cbab..ab74e7e 100644 --- a/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/ld.abilist +++ b/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.12 GLIBC_2.12 A -GLIBC_2.12 __libc_memalign F GLIBC_2.12 __libc_stack_end D 0x8 GLIBC_2.12 __tls_get_addr F GLIBC_2.12 _dl_mcount F diff --git a/sysdeps/unix/sysv/linux/tile/tilepro/ld.abilist b/sysdeps/unix/sysv/linux/tile/tilepro/ld.abilist index 3ab170c..f166310 100644 --- a/sysdeps/unix/sysv/linux/tile/tilepro/ld.abilist +++ b/sysdeps/unix/sysv/linux/tile/tilepro/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.12 GLIBC_2.12 A -GLIBC_2.12 __libc_memalign F GLIBC_2.12 __libc_stack_end D 0x4 GLIBC_2.12 __tls_get_addr F GLIBC_2.12 _dl_mcount F diff --git a/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist b/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist index 9e09ac6..07cab4b 100644 --- a/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/64/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.2.5 GLIBC_2.2.5 A -GLIBC_2.2.5 __libc_memalign F GLIBC_2.2.5 __libc_stack_end D 0x8 GLIBC_2.2.5 _dl_mcount F GLIBC_2.2.5 _r_debug D 0x28 diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist index d595038..236357b 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist +++ b/sysdeps/unix/sysv/linux/x86_64/x32/ld.abilist @@ -1,5 +1,4 @@ GLIBC_2.16 GLIBC_2.16 A -GLIBC_2.16 __libc_memalign F GLIBC_2.16 __libc_stack_end D 0x4 GLIBC_2.16 __tls_get_addr F GLIBC_2.16 _dl_mcount F diff --git a/sysdeps/x86_64/localplt.data b/sysdeps/x86_64/localplt.data index 28096f8..014a9f4 100644 --- a/sysdeps/x86_64/localplt.data +++ b/sysdeps/x86_64/localplt.data @@ -9,10 +9,8 @@ libc.so: malloc + RELA R_X86_64_GLOB_DAT libc.so: memalign + RELA R_X86_64_GLOB_DAT libc.so: realloc + RELA R_X86_64_GLOB_DAT libm.so: matherr -# The dynamic loader uses __libc_memalign internally to allocate aligned -# TLS storage. The other malloc family of functions are expected to allow -# user symbol interposition. -ld.so: __libc_memalign + RELA R_X86_64_GLOB_DAT +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). ld.so: malloc + RELA R_X86_64_GLOB_DAT ld.so: calloc + RELA R_X86_64_GLOB_DAT ld.so: realloc + RELA R_X86_64_GLOB_DAT -- 2.7.4