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PowerPC ugly symbol versioning 

http://sourceware.org/ml/libc-alpha/2013-08/msg00090.html

This patch fixes symbol versioning in setjmp/longjmp.  The existing
code uses raw versions, which results in wrong symbol versioning when
you want to build glibc with a base version of 2.19 for LE.

Note that the merging the 64-bit and 32-bit versions in novmx-lonjmp.c
and pt-longjmp.c doesn't result in GLIBC_2.0 versions for 64-bit, due
to the base in shlib_versions.

	* sysdeps/powerpc/longjmp.c: Use proper symbol versioning macros.
	* sysdeps/powerpc/novmx-longjmp.c: Likewise.
	* sysdeps/powerpc/powerpc32/bsd-_setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/bsd-setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/__longjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/mcount.c: Likewise.
	* sysdeps/powerpc/powerpc32/setjmp.S: Likewise.
	* sysdeps/powerpc/powerpc64/setjmp.S: Likewise.
	* nptl/sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c: Likewise.
This commit is contained in:
Alan Modra 2013-08-17 18:35:40 +09:30
parent be1e5d3113
commit 9b874b2f1e
11 changed files with 40 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
ChangeLog
View File

@ -1,3 +1,16 @@
2013-10-04 Alan Modra <amodra@gmail.com>
* sysdeps/powerpc/longjmp.c: Use proper symbol versioning macros.
* sysdeps/powerpc/novmx-longjmp.c: Likewise.
* sysdeps/powerpc/powerpc32/bsd-_setjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/bsd-setjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/fpu/__longjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/fpu/setjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/mcount.c: Likewise.
* sysdeps/powerpc/powerpc32/setjmp.S: Likewise.
* sysdeps/powerpc/powerpc64/setjmp.S: Likewise.
* nptl/sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c: Likewise.
2013-10-04 Anton Blanchard <anton@au1.ibm.com>
Alistair Popple <alistair@ozlabs.au.ibm.com>
Alan Modra <amodra@gmail.com>

13
nptl/sysdeps/unix/sysv/linux/powerpc/pt-longjmp.c
View File

@ -41,13 +41,8 @@ void __novmx_longjmp (jmp_buf env, int val)
__novmx__libc_longjmp (env, val);
}
# if __WORDSIZE == 64
symbol_version (__novmx_longjmp,longjmp,GLIBC_2.3);
symbol_version (__novmx_siglongjmp,siglongjmp,GLIBC_2.3);
# else
symbol_version (__novmx_longjmp,longjmp,GLIBC_2.0);
symbol_version (__novmx_siglongjmp,siglongjmp,GLIBC_2.0);
# endif
compat_symbol (libpthread, __novmx_longjmp, longjmp, GLIBC_2_0);
compat_symbol (libpthread, __novmx_siglongjmp, siglongjmp, GLIBC_2_0);
#endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)) */
void
@ -62,5 +57,5 @@ __vmx_siglongjmp (jmp_buf env, int val)
__libc_siglongjmp (env, val);
}
versioned_symbol (libc, __vmx_longjmp, longjmp, GLIBC_2_3_4);
versioned_symbol (libc, __vmx_siglongjmp, siglongjmp, GLIBC_2_3_4);
versioned_symbol (libpthread, __vmx_longjmp, longjmp, GLIBC_2_3_4);
versioned_symbol (libpthread, __vmx_siglongjmp, siglongjmp, GLIBC_2_3_4);

6
sysdeps/powerpc/longjmp.c
View File

@ -55,6 +55,6 @@ weak_alias (__vmx__libc_siglongjmp, __vmxsiglongjmp)
default_symbol_version (__vmx__libc_longjmp, __libc_longjmp, GLIBC_PRIVATE);
default_symbol_version (__vmx__libc_siglongjmp, __libc_siglongjmp, GLIBC_PRIVATE);
default_symbol_version (__vmx_longjmp, _longjmp, GLIBC_2.3.4);
default_symbol_version (__vmxlongjmp, longjmp, GLIBC_2.3.4);
default_symbol_version (__vmxsiglongjmp, siglongjmp, GLIBC_2.3.4);
versioned_symbol (libc, __vmx_longjmp, _longjmp, GLIBC_2_3_4);
versioned_symbol (libc, __vmxlongjmp, longjmp, GLIBC_2_3_4);
versioned_symbol (libc, __vmxsiglongjmp, siglongjmp, GLIBC_2_3_4);

12
sysdeps/powerpc/novmx-longjmp.c
View File

@ -50,13 +50,7 @@ weak_alias (__novmx__libc_siglongjmp, __novmx_longjmp)
weak_alias (__novmx__libc_siglongjmp, __novmxlongjmp)
weak_alias (__novmx__libc_siglongjmp, __novmxsiglongjmp)
# if __WORDSIZE == 64
symbol_version (__novmx_longjmp,_longjmp,GLIBC_2.3);
symbol_version (__novmxlongjmp,longjmp,GLIBC_2.3);
symbol_version (__novmxsiglongjmp,siglongjmp,GLIBC_2.3);
# else
symbol_version (__novmx_longjmp,_longjmp,GLIBC_2.0);
symbol_version (__novmxlongjmp,longjmp,GLIBC_2.0);
symbol_version (__novmxsiglongjmp,siglongjmp,GLIBC_2.0);
# endif
compat_symbol (libc, __novmx_longjmp, _longjmp, GLIBC_2_0);
compat_symbol (libc, __novmxlongjmp, longjmp, GLIBC_2_0);
compat_symbol (libc, __novmxsiglongjmp, siglongjmp, GLIBC_2_0);
#endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)) */

4
sysdeps/powerpc/powerpc32/bsd-_setjmp.S
View File

@ -30,7 +30,7 @@ libc_hidden_def (_setjmp)
/* Build a versioned object for libc. */
# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
symbol_version (__novmx_setjmp,_setjmp,GLIBC_2.0);
compat_symbol (libc, __novmx_setjmp, _setjmp, GLIBC_2_0);
ENTRY (__novmx_setjmp)
li r4,0 /* Set second argument to 0. */
@ -39,7 +39,7 @@ END (__novmx_setjmp)
libc_hidden_def (__novmx_setjmp)
# endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) */
default_symbol_version (__vmx_setjmp,_setjmp,GLIBC_2.3.4)
versioned_symbol (libc, __vmx_setjmp, _setjmp, GLIBC_2_3_4)
/* __GI__setjmp prototype is needed for ntpl i.e. _setjmp is defined
as a libc_hidden_proto & is used in sysdeps/generic/libc-start.c
if HAVE_CLEANUP_JMP_BUF is defined */

4
sysdeps/powerpc/powerpc32/bsd-setjmp.S
View File

@ -26,7 +26,7 @@ ENTRY (__novmxsetjmp)
b __novmx__sigsetjmp@local
END (__novmxsetjmp)
strong_alias (__novmxsetjmp, __novmx__setjmp)
symbol_version (__novmxsetjmp, setjmp, GLIBC_2.0)
compat_symbol (libc, __novmxsetjmp, setjmp, GLIBC_2_0)
#endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) ) */
@ -36,4 +36,4 @@ ENTRY (__vmxsetjmp)
END (__vmxsetjmp)
strong_alias (__vmxsetjmp, __vmx__setjmp)
strong_alias (__vmx__setjmp, __setjmp)
default_symbol_version (__vmxsetjmp,setjmp,GLIBC_2.3.4)
versioned_symbol (libc, __vmxsetjmp, setjmp, GLIBC_2_3_4)

4
sysdeps/powerpc/powerpc32/fpu/__longjmp.S
View File

@ -26,14 +26,14 @@
#else /* !NOT_IN_libc */
/* Build a versioned object for libc. */
default_symbol_version (__vmx__longjmp,__longjmp,GLIBC_2.3.4);
versioned_symbol (libc, __vmx__longjmp, __longjmp, GLIBC_2_3_4);
# define __longjmp __vmx__longjmp
# include "__longjmp-common.S"
# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)
# define __NO_VMX__
# undef JB_SIZE
symbol_version (__novmx__longjmp,__longjmp,GLIBC_2.0);
compat_symbol (libc, __novmx__longjmp, __longjmp, GLIBC_2_0);
# undef __longjmp
# define __longjmp __novmx__longjmp
# include "__longjmp-common.S"

4
sysdeps/powerpc/powerpc32/fpu/setjmp.S
View File

@ -26,7 +26,7 @@
#else /* !NOT_IN_libc */
/* Build a versioned object for libc. */
default_symbol_version (__vmx__sigsetjmp,__sigsetjmp,GLIBC_2.3.4)
versioned_symbol (libc, __vmx__sigsetjmp, __sigsetjmp, GLIBC_2_3_4)
# define __sigsetjmp __vmx__sigsetjmp
# define __sigjmp_save __vmx__sigjmp_save
# include "setjmp-common.S"
@ -36,7 +36,7 @@ default_symbol_version (__vmx__sigsetjmp,__sigsetjmp,GLIBC_2.3.4)
# undef __sigsetjmp
# undef __sigjmp_save
# undef JB_SIZE
symbol_version (__novmx__sigsetjmp,__sigsetjmp,GLIBC_2.0)
compat_symbol (libc, __novmx__sigsetjmp, __sigsetjmp, GLIBC_2_0)
# define __sigsetjmp __novmx__sigsetjmp
# define __sigjmp_save __novmx__sigjmp_save
# include "setjmp-common.S"

2
sysdeps/powerpc/powerpc32/mcount.c
View File

@ -9,7 +9,7 @@
/* __mcount_internal was added in glibc 2.15 with version GLIBC_PRIVATE,
but it should have been put in version GLIBC_2.15. Mark the
GLIBC_PRIVATE version obsolete and add it to GLIBC_2.16 instead. */
default_symbol_version (___mcount_internal, __mcount_internal, GLIBC_2.16);
versioned_symbol (libc, ___mcount_internal, __mcount_internal, GLIBC_2_16);
#if SHLIB_COMPAT (libc, GLIBC_2_15, GLIBC_2_16)
strong_alias (___mcount_internal, ___mcount_internal_private);

4
sysdeps/powerpc/powerpc32/setjmp.S
View File

@ -25,7 +25,7 @@
#else /* !NOT_IN_libc */
/* Build a versioned object for libc. */
default_symbol_version (__vmx__sigsetjmp,__sigsetjmp,GLIBC_2.3.4)
versioned_symbol (libc, __vmx__sigsetjmp, __sigsetjmp, GLIBC_2_3_4)
# define __sigsetjmp __vmx__sigsetjmp
# define __sigjmp_save __vmx__sigjmp_save
# include "setjmp-common.S"
@ -35,7 +35,7 @@ default_symbol_version (__vmx__sigsetjmp,__sigsetjmp,GLIBC_2.3.4)
# undef __sigsetjmp
# undef __sigjmp_save
# undef JB_SIZE
symbol_version (__novmx__sigsetjmp,__sigsetjmp,GLIBC_2.0)
compat_symbol (libc, __novmx__sigsetjmp, __sigsetjmp, GLIBC_2_0)
# define __sigsetjmp __novmx__sigsetjmp
# define __sigjmp_save __novmx__sigjmp_save
# include "setjmp-common.S"

12
sysdeps/powerpc/powerpc64/setjmp.S
View File

@ -26,9 +26,9 @@
#else /* !NOT_IN_libc */
/* Build a versioned object for libc. */
default_symbol_version (__vmxsetjmp, setjmp, GLIBC_2.3.4)
default_symbol_version (__vmx_setjmp,_setjmp,GLIBC_2.3.4)
default_symbol_version (__vmx__sigsetjmp,__sigsetjmp,GLIBC_2.3.4)
versioned_symbol (libc, __vmxsetjmp, setjmp, GLIBC_2_3_4)
versioned_symbol (libc, __vmx_setjmp, _setjmp, GLIBC_2_3_4)
versioned_symbol (libc, __vmx__sigsetjmp, __sigsetjmp, GLIBC_2_3_4)
# define setjmp __vmxsetjmp
# define _setjmp __vmx_setjmp
# define __sigsetjmp __vmx__sigsetjmp
@ -44,9 +44,9 @@ strong_alias (__vmx__sigsetjmp, __setjmp)
# undef __sigjmp_save
# undef JB_SIZE
# define __NO_VMX__
symbol_version (__novmxsetjmp, setjmp, GLIBC_2.3)
symbol_version (__novmx_setjmp,_setjmp,GLIBC_2.3);
symbol_version (__novmx__sigsetjmp,__sigsetjmp,GLIBC_2.3)
compat_symbol (libc, __novmxsetjmp, setjmp, GLIBC_2_3)
compat_symbol (libc, __novmx_setjmp,_setjmp, GLIBC_2_3);
compat_symbol (libc, __novmx__sigsetjmp,__sigsetjmp, GLIBC_2_3)
# define setjmp __novmxsetjmp
# define _setjmp __novmx_setjmp
# define __sigsetjmp __novmx__sigsetjmp