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.

ChangeLog

@@ -1,3 +1,60 @@
+2016-11-30  Florian Weimer  <fweimer@redhat.com>
+
+	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  <fweimer@redhat.com>
 
 	[BZ #16628]

elf/Versions

@@ -34,8 +34,8 @@ libc {
 
 ld {
   GLIBC_2.0 {
-    # Function from libc.so which must be shared with libc.
+    # Functions which are interposed from libc.so.
-    __libc_memalign; calloc; free; malloc; realloc;
+    calloc; free; malloc; realloc;
 
     _r_debug;
   }

elf/dl-minimal.c

@@ -31,8 +31,10 @@
 
 #include <assert.h>
 
-/* Minimal `malloc' allocator for use while loading shared libraries.
+/* Minimal malloc allocator for used during initial link.  After the
-   No block is ever freed.  */
+   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)
+  alloc_ptr = (void *) 0 + (((alloc_ptr - (void *) 0) + MALLOC_ALIGNMENT - 1)
-			    & ~(align - 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.  */

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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 ld.so: malloc
 ld.so: calloc
 ld.so: realloc

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

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
+# The dynamic loader needs __tls_get_addr for TLS.
-# internally to allocate aligned TLS storage. The other malloc family of
-# functions are expected to allow user symbol interposition.
 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
+# The dynamic loader needs __tls_get_addr for TLS.
-# internally to allocate aligned TLS storage. The other malloc family of
-# functions are expected to allow user symbol interposition.
 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
+# The dynamic loader needs __tls_get_addr for TLS.
-# internally to allocate aligned TLS storage. The other malloc family of
-# functions are expected to allow user symbol interposition.
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign + REL R_386_GLOB_DAT
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The dynamic loader needs __tls_get_addr for TLS.
-# internally to allocate aligned TLS storage. The other malloc family of
-# functions are expected to allow user symbol interposition.
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to
+# allocations after the initial link (when dlopen is used).
-# allow user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# 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
 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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# aligned TLS storage. The other malloc family of functions are
+# allocations after the initial link (when dlopen is used).
-# expected to allow user symbol interposition.
-ld.so: __libc_memalign
 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
+# The main malloc is interposed into the dynamic linker, for
-# aligned TLS storage. The other malloc family of functions are
+# allocations after the initial link (when dlopen is used).
-# expected to allow user symbol interposition.
-ld.so: __libc_memalign
 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

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
+# The main malloc is interposed into the dynamic linker, for
-# TLS storage. The other malloc family of functions are expected to allow
+# allocations after the initial link (when dlopen is used).
-# user symbol interposition.
-ld.so: __libc_memalign + RELA R_X86_64_GLOB_DAT
 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