ld.so: Remove __libc_memalign

It is no longer needed since commit 6c444ad6e9
(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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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