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Re: [PATCH] powerpc: Remove HAVE_ASM_GLOBAL_DOT_NAME define

From: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>
To: libc-alpha at sourceware dot org
Date: Wed, 11 Mar 2015 10:07:05 -0300
Subject: Re: [PATCH] powerpc: Remove HAVE_ASM_GLOBAL_DOT_NAME define
Authentication-results: sourceware.org; auth=none
References: <54D124C1 dot 3010208 at linux dot vnet dot ibm dot com> <54D8B844 dot 2070507 at linux dot vnet dot ibm dot com> <54F5FED1 dot 6080001 at linux dot vnet dot ibm dot com> <54FDF9A6 dot 100 at linux dot vnet dot ibm dot com>
Pushed upstream as 5ca10a0c9ad1edb3b2e2e59ac6dccdd879cf84ae


On 09-03-2015 16:51, Adhemerval Zanella wrote:
> Although this touch various non-powerpc files, this change is only used
> on powerpc.  If nobody objects I will commit it today or later tomorrow.
>
>
> On 03-03-2015 15:34, Adhemerval Zanella wrote:
>> Ping.
>>
>> On 09-02-2015 11:38, Adhemerval Zanella wrote:
>>> Ping.
>>>
>>> On 03-02-2015 17:42, Adhemerval Zanella wrote:
>>>> With AIX port deprecated there is no need to check/define
>>>> HAVE_ASM_GLOBAL_DOT_NAME anymore since the current minimum binutils
>>>> supported (2.22) does not emit global symbol with dot.
>>>>
>>>> This patch removes all the HAVE_ASM_GLOBAL_DOT_NAME definition and
>>>> checks for powerpc64 port.
>>>>
>>>> Checked on powerpc64.
>>>>
>>>> --
>>>>
>>>> 	* config.h.in [HAVE_ASM_GLOBAL_DOT_NAME]: Remove define.
>>>> 	* include/libc-symbols.h [HAVE_ASM_GLOBAL_DOT_NAME] (strong_alias):
>>>> 	Remove define.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (strong_data_alias): Likewise.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (weak_alias): Likewise.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (_symbol_version): Likewise.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (_default_symbol_version): Likewise.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (HIDDEN_JUMPTARGET): Likewise.
>>>> 	* nptl_db/db-symbols.h [HAVE_ASM_GLOBAL_DOT_NAME] (DOT): Remove
>>>> 	define.
>>>> 	* nptl_db/td_symbol_list.c (td_lookup): Remove
>>>> 	HAVE_ASM_GLOBAL_DOT_NAME code.
>>>> 	* sysdeps/powerpc/powerpc64/configure.ac: Remove
>>>> 	HAVE_ASM_GLOBAL_DOT_NAME check.
>>>> 	* sysdeps/powerpc/powerpc64/configure: Regenerate.
>>>> 	* sysdeps/powerpc/powerpc64/sysdep.h [HAVE_ASM_GLOBAL_DOT_NAME]
>>>> 	(DOT_LABEL): Remove define.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (BODY_LABEL): Likewise.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (ENTRY_2): Likewise.
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (END_2): Likewise.
>>>> 	* sysdeps/powerpc/powerpc64/tls-macros.h [HAVE_ASM_GLOBAL_DOT_NAME]
>>>> 	(__TLS_GET_ADDR): Likewise.
>>>> 	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
>>>> 	[HAVE_ASM_GLOBAL_DOT_NAME] (DASHDASHPFX): Likewise.
>>>>
>>>> --
>>>>
>>>> diff --git a/config.h.in b/config.h.in
>>>> index 695ca35..a1ae478 100644
>>>> --- a/config.h.in
>>>> +++ b/config.h.in
>>>> @@ -37,9 +37,6 @@
>>>>  /* Define if the assembler supports the gnu_unique_object symbol type.  */
>>>>  #undef	HAVE_ASM_UNIQUE_OBJECT
>>>>
>>>> -/* Define a symbol_name as a global .symbol_name for ld.  */
>>>> -#undef	HAVE_ASM_GLOBAL_DOT_NAME
>>>> -
>>>>  /* On powerpc64, use overlapping .opd entries.  */
>>>>  #undef  USE_PPC64_OVERLAPPING_OPD
>>>>
>>>> diff --git a/include/libc-symbols.h b/include/libc-symbols.h
>>>> index 2da0ab4..ca3fe00 100644
>>>> --- a/include/libc-symbols.h
>>>> +++ b/include/libc-symbols.h
>>>> @@ -96,17 +96,6 @@
>>>>  # define ASM_LINE_SEP ;
>>>>  #endif
>>>>
>>>> -#ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -# ifndef C_SYMBOL_DOT_NAME
>>>> -#  if defined __GNUC__ && defined __GNUC_MINOR__ \
>>>> -      && (__GNUC__ << 16) + __GNUC_MINOR__ >= (3 << 16) + 1
>>>> -#   define C_SYMBOL_DOT_NAME(name) .name
>>>> -#  else
>>>> -#   define C_SYMBOL_DOT_NAME(name) .##name
>>>> -#  endif
>>>> -# endif
>>>> -#endif
>>>> -
>>>>  #ifndef __ASSEMBLER__
>>>>  /* GCC understands weak symbols and aliases; use its interface where
>>>>     possible, instead of embedded assembly language.  */
>>>> @@ -142,64 +131,28 @@
>>>>  #else /* __ASSEMBLER__ */
>>>>
>>>>  # ifdef HAVE_ASM_SET_DIRECTIVE
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define strong_alias(original, alias)				\
>>>> -  .globl C_SYMBOL_NAME (alias) ASM_LINE_SEP		\
>>>> -  .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original) ASM_LINE_SEP	\
>>>> -  .globl C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP		\
>>>> -  .set C_SYMBOL_DOT_NAME (alias),C_SYMBOL_DOT_NAME (original)
>>>> -#   define strong_data_alias(original, alias)				\
>>>> -  .globl C_SYMBOL_NAME (alias) ASM_LINE_SEP		\
>>>> -  .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original)
>>>> -#  else
>>>> -#   define strong_alias(original, alias)				\
>>>> +#  define strong_alias(original, alias)				\
>>>>    .globl C_SYMBOL_NAME (alias) ASM_LINE_SEP		\
>>>>    .set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original)
>>>> -#   define strong_data_alias(original, alias) strong_alias(original, alias)
>>>> -#  endif
>>>> +#  define strong_data_alias(original, alias) strong_alias(original, alias)
>>>>  # else
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define strong_alias(original, alias)				\
>>>> -  .globl C_SYMBOL_NAME (alias) ASM_LINE_SEP		\
>>>> -  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP		\
>>>> -  .globl C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP		\
>>>> -  C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original)
>>>> -#   define strong_data_alias(original, alias)				\
>>>> +#  define strong_alias(original, alias)				\
>>>>    .globl C_SYMBOL_NAME (alias) ASM_LINE_SEP		\
>>>>    C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
>>>> -#  else
>>>> -#   define strong_alias(original, alias)				\
>>>> -  .globl C_SYMBOL_NAME (alias) ASM_LINE_SEP		\
>>>> -  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
>>>> -#   define strong_data_alias(original, alias) strong_alias(original, alias)
>>>> -#  endif
>>>> +#  define strong_data_alias(original, alias) strong_alias(original, alias)
>>>>  # endif
>>>>
>>>>  # ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define weak_alias(original, alias)					\
>>>> -  .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original) ASM_LINE_SEP \
>>>> -  .weakext C_SYMBOL_DOT_NAME (alias), C_SYMBOL_DOT_NAME (original)
>>>> -#  else
>>>> -#   define weak_alias(original, alias)					\
>>>> +#  define weak_alias(original, alias)					\
>>>>    .weakext C_SYMBOL_NAME (alias), C_SYMBOL_NAME (original)
>>>> -#  endif
>>>>  #  define weak_extern(symbol)						\
>>>>    .weakext C_SYMBOL_NAME (symbol)
>>>>
>>>>  # else /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */
>>>>
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define weak_alias(original, alias)					\
>>>> -  .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP				\
>>>> -  C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original) ASM_LINE_SEP		\
>>>> -  .weak C_SYMBOL_DOT_NAME (alias) ASM_LINE_SEP				\
>>>> -  C_SYMBOL_DOT_NAME (alias) = C_SYMBOL_DOT_NAME (original)
>>>> -#  else
>>>> -#   define weak_alias(original, alias)					\
>>>> +#  define weak_alias(original, alias)					\
>>>>    .weak C_SYMBOL_NAME (alias) ASM_LINE_SEP				\
>>>>    C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
>>>> -#  endif
>>>>
>>>>  #  define weak_extern(symbol)						\
>>>>    .weak C_SYMBOL_NAME (symbol)
>>>> @@ -358,33 +311,15 @@ for linking")
>>>>  # define default_symbol_version(real, name, version) \
>>>>       _default_symbol_version(real, name, version)
>>>>  # ifdef __ASSEMBLER__
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define _symbol_version(real, name, version) \
>>>> -     .symver real, name##@##version ASM_LINE_SEP			\
>>>> -     .symver C_SYMBOL_DOT_NAME(real), C_SYMBOL_DOT_NAME(name##@##version)
>>>> -#   define _default_symbol_version(real, name, version) \
>>>> -     .symver real, name##@##@##version ASM_LINE_SEP			\
>>>> -     .symver C_SYMBOL_DOT_NAME(real), C_SYMBOL_DOT_NAME(name##@##@##version)
>>>> -#  else
>>>> -#   define _symbol_version(real, name, version) \
>>>> +#  define _symbol_version(real, name, version) \
>>>>       .symver real, name##@##version
>>>> -#   define _default_symbol_version(real, name, version) \
>>>> +#  define _default_symbol_version(real, name, version) \
>>>>       .symver real, name##@##@##version
>>>> -#  endif
>>>>  # else
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define _symbol_version(real, name, version) \
>>>> -     __asm__ (".symver " #real "," #name "@" #version "\n\t"	\
>>>> -	      ".symver ." #real ",." #name "@" #version)
>>>> -#   define _default_symbol_version(real, name, version) \
>>>> -     __asm__ (".symver " #real "," #name "@@" #version "\n\t"	\
>>>> -	      ".symver ." #real ",." #name "@@" #version)
>>>> -#  else
>>>> -#   define _symbol_version(real, name, version) \
>>>> +#  define _symbol_version(real, name, version) \
>>>>       __asm__ (".symver " #real "," #name "@" #version)
>>>> -#   define _default_symbol_version(real, name, version) \
>>>> +#  define _default_symbol_version(real, name, version) \
>>>>       __asm__ (".symver " #real "," #name "@@" #version)
>>>> -#  endif
>>>>  # endif
>>>>  #else
>>>>  # define symbol_version(real, name, version)
>>>> @@ -527,11 +462,7 @@ for linking")
>>>>  #  define hidden_data_def(name)	strong_data_alias (name, __GI_##name)
>>>>  #  define hidden_data_weak(name)	hidden_data_def (name)
>>>>  #  define hidden_data_ver(local, name) strong_data_alias (local, __GI_##name)
>>>> -#  ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#   define HIDDEN_JUMPTARGET(name) .__GI_##name
>>>> -#  else
>>>> -#   define HIDDEN_JUMPTARGET(name) __GI_##name
>>>> -#  endif
>>>> +#  define HIDDEN_JUMPTARGET(name) __GI_##name
>>>>  # endif
>>>>  #else
>>>>  # ifndef __ASSEMBLER__
>>>> diff --git a/nptl_db/db-symbols.h b/nptl_db/db-symbols.h
>>>> index 47fe951..0f27e67 100644
>>>> --- a/nptl_db/db-symbols.h
>>>> +++ b/nptl_db/db-symbols.h
>>>> @@ -16,11 +16,7 @@
>>>>     License along with the GNU C Library; if not, see
>>>>     <http://www.gnu.org/licenses/>.  */
>>>>
>>>> -#ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -# define DOT(x)	.##x		/* PPC64 requires . prefix on code symbols.  */
>>>> -#else
>>>> -# define DOT(x)	x		/* No prefix.  */
>>>> -#endif
>>>> +#define DOT(x)	x		/* No prefix.  */
>>>>
>>>>  #define STRINGIFY(name)		STRINGIFY_1(name)
>>>>  #define STRINGIFY_1(name)	#name
>>>> diff --git a/nptl_db/td_symbol_list.c b/nptl_db/td_symbol_list.c
>>>> index 6b14d36..6915ed7 100644
>>>> --- a/nptl_db/td_symbol_list.c
>>>> +++ b/nptl_db/td_symbol_list.c
>>>> @@ -48,13 +48,5 @@ td_lookup (struct ps_prochandle *ps, int idx, psaddr_t *sym_addr)
>>>>    result = ps_pglobal_lookup (ps, LIBPTHREAD_SO, symbol_list_arr[idx],
>>>>  			      sym_addr);
>>>>
>>>> -#ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -  /* For PowerPC, 64-bit uses dot symbols but 32-bit does not.
>>>> -     We could be a 64-bit libthread_db debugging a 32-bit libpthread.  */
>>>> -  if (result == PS_NOSYM && symbol_list_arr[idx][0] == '.')
>>>> -    result = ps_pglobal_lookup (ps, LIBPTHREAD_SO, &symbol_list_arr[idx][1],
>>>> -				sym_addr);
>>>> -#endif
>>>> -
>>>>    return result;
>>>>  }
>>>> diff --git a/sysdeps/powerpc/powerpc64/configure b/sysdeps/powerpc/powerpc64/configure
>>>> index 92ec607..d4deee7 100644
>>>> --- a/sysdeps/powerpc/powerpc64/configure
>>>> +++ b/sysdeps/powerpc/powerpc64/configure
>>>> @@ -1,37 +1,6 @@
>>>>  # This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
>>>>   # Local configure fragment for sysdeps/powerpc/powerpc64.
>>>>
>>>> -# The Aix ld uses global .symbol_names instead of symbol_names
>>>> -# and unfortunately early Linux PPC64 linkers use it as well.
>>>> -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for support for omitting dot symbols" >&5
>>>> -$as_echo_n "checking for support for omitting dot symbols... " >&6; }
>>>> -if ${libc_cv_omit_dot_syms+:} false; then :
>>>> -  $as_echo_n "(cached) " >&6
>>>> -else
>>>> -  libc_cv_omit_dot_syms=no
>>>> -echo 'void foo (void) {}' > conftest.c
>>>> -if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&5'
>>>> -  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
>>>> -  (eval $ac_try) 2>&5
>>>> -  ac_status=$?
>>>> -  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
>>>> -  test $ac_status = 0; }; }; then
>>>> -  if grep -w '\.foo' conftest.s > /dev/null; then
>>>> -    :
>>>> -  else
>>>> -    libc_cv_omit_dot_syms=yes
>>>> -  fi
>>>> -fi
>>>> -rm -f conftest.c conftest.s
>>>> -
>>>> -fi
>>>> -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_omit_dot_syms" >&5
>>>> -$as_echo "$libc_cv_omit_dot_syms" >&6; }
>>>> -if test x$libc_cv_omit_dot_syms != xyes; then
>>>> -  $as_echo "#define HAVE_ASM_GLOBAL_DOT_NAME 1" >>confdefs.h
>>>> -
>>>> -fi
>>>> -
>>>>  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker support for overlapping .opd entries" >&5
>>>>  $as_echo_n "checking for linker support for overlapping .opd entries... " >&6; }
>>>>  if ${libc_cv_overlapping_opd+:} false; then :
>>>> diff --git a/sysdeps/powerpc/powerpc64/configure.ac b/sysdeps/powerpc/powerpc64/configure.ac
>>>> index 67aac66..9e9881c 100644
>>>> --- a/sysdeps/powerpc/powerpc64/configure.ac
>>>> +++ b/sysdeps/powerpc/powerpc64/configure.ac
>>>> @@ -1,25 +1,6 @@
>>>>  GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
>>>>  # Local configure fragment for sysdeps/powerpc/powerpc64.
>>>>
>>>> -# The Aix ld uses global .symbol_names instead of symbol_names
>>>> -# and unfortunately early Linux PPC64 linkers use it as well.
>>>> -AC_CACHE_CHECK(for support for omitting dot symbols,
>>>> -libc_cv_omit_dot_syms, [dnl
>>>> -libc_cv_omit_dot_syms=no
>>>> -echo 'void foo (void) {}' > conftest.c
>>>> -if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
>>>> -  if grep -w '\.foo' conftest.s > /dev/null; then
>>>> -    :
>>>> -  else
>>>> -    libc_cv_omit_dot_syms=yes
>>>> -  fi
>>>> -fi
>>>> -rm -f conftest.c conftest.s
>>>> -])
>>>> -if test x$libc_cv_omit_dot_syms != xyes; then
>>>> -  AC_DEFINE(HAVE_ASM_GLOBAL_DOT_NAME)
>>>> -fi
>>>> -
>>>>  AC_CACHE_CHECK(for linker support for overlapping .opd entries,
>>>>  libc_cv_overlapping_opd, [dnl
>>>>  libc_cv_overlapping_opd=no
>>>> diff --git a/sysdeps/powerpc/powerpc64/sysdep.h b/sysdeps/powerpc/powerpc64/sysdep.h
>>>> index 1f4efe6..bf2a884 100644
>>>> --- a/sysdeps/powerpc/powerpc64/sysdep.h
>>>> +++ b/sysdeps/powerpc/powerpc64/sysdep.h
>>>> @@ -140,25 +140,14 @@
>>>>  name##: OPD_ENT (name);				\
>>>>  	.previous;
>>>>
>>>> -#ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -# define DOT_LABEL(X) .##X
>>>> -# define BODY_LABEL(X) .##X
>>>> -# define ENTRY_2(name)	\
>>>> -	.globl BODY_LABEL(name);		\
>>>> -	ENTRY_1(name)				\
>>>> -	.size name, 24;
>>>> -# define END_2(name)	\
>>>> -	.size BODY_LABEL(name),.-BODY_LABEL(name);
>>>> -#else
>>>> -# define DOT_LABEL(X) X
>>>> -# define BODY_LABEL(X) .LY##X
>>>> -# define ENTRY_2(name)	\
>>>> +#define DOT_LABEL(X) X
>>>> +#define BODY_LABEL(X) .LY##X
>>>> +#define ENTRY_2(name)	\
>>>>  	.type name,@function;			\
>>>>  	ENTRY_1(name)
>>>> -# define END_2(name)	\
>>>> +#define END_2(name)	\
>>>>  	.size name,.-BODY_LABEL(name);		\
>>>>  	.size BODY_LABEL(name),.-BODY_LABEL(name);
>>>> -#endif
>>>>  #define LOCALENTRY(name)
>>>>
>>>>  #else /* _CALL_ELF */
>>>> @@ -403,25 +392,14 @@ LT_LABELSUFFIX(name,_name_end): ; \
>>>>  	OPD_ENT (name) "\n"						\
>>>>  	".popsection;"
>>>>
>>>> -#ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -# define DOT_PREFIX "."
>>>> -# define BODY_PREFIX "."
>>>> -# define ENTRY_2(name)	\
>>>> -	".globl " BODY_PREFIX #name ";\n"				\
>>>> -	ENTRY_1(name) "\n"						\
>>>> -	".size  " #name ", 24;"
>>>> -# define END_2(name)	\
>>>> -	".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
>>>> -#else
>>>> -# define DOT_PREFIX ""
>>>> -# define BODY_PREFIX ".LY"
>>>> -# define ENTRY_2(name)	\
>>>> +#define DOT_PREFIX ""
>>>> +#define BODY_PREFIX ".LY"
>>>> +#define ENTRY_2(name)	\
>>>>  	".type " #name ",@function;\n"					\
>>>>  	ENTRY_1(name)
>>>> -# define END_2(name)	\
>>>> +#define END_2(name)	\
>>>>  	".size " #name ",.-" BODY_PREFIX #name ";\n"			\
>>>>  	".size " BODY_PREFIX #name ",.-" BODY_PREFIX #name ";"
>>>> -#endif
>>>>  #define LOCALENTRY(name)
>>>>
>>>>  #else /* _CALL_ELF */
>>>> diff --git a/sysdeps/powerpc/powerpc64/tls-macros.h b/sysdeps/powerpc/powerpc64/tls-macros.h
>>>> index 198215d..42a95ec 100644
>>>> --- a/sysdeps/powerpc/powerpc64/tls-macros.h
>>>> +++ b/sysdeps/powerpc/powerpc64/tls-macros.h
>>>> @@ -17,11 +17,9 @@
>>>>  	  : "=r" (__result) );						      \
>>>>       __result;								      \
>>>>    })
>>>> -#ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -# define __TLS_GET_ADDR ".__tls_get_addr"
>>>> -#else
>>>> -# define __TLS_GET_ADDR "__tls_get_addr"
>>>> -#endif
>>>> +
>>>> +#define __TLS_GET_ADDR "__tls_get_addr"
>>>> +
>>>>  /* PowerPC64 Local Dynamic TLS access.  */
>>>>  #define TLS_LD(x)							      \
>>>>    ({ int * __result;							      \
>>>> diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
>>>> index 6579757..5cd7ddb 100644
>>>> --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
>>>> +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h
>>>> @@ -25,11 +25,7 @@
>>>>
>>>>  #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt)
>>>>
>>>> -# ifdef HAVE_ASM_GLOBAL_DOT_NAME
>>>> -#  define DASHDASHPFX(str) .__##str
>>>> -# else
>>>> -#  define DASHDASHPFX(str) __##str
>>>> -# endif
>>>> +# define DASHDASHPFX(str) __##str
>>>>
>>>>  #if _CALL_ELF == 2
>>>>  #define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16+48)
>>>>
References:
- Re: [PATCH] powerpc: Remove HAVE_ASM_GLOBAL_DOT_NAME define
  - From: Adhemerval Zanella
- Re: [PATCH] powerpc: Remove HAVE_ASM_GLOBAL_DOT_NAME define
  - From: Adhemerval Zanella
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