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arm: setjmp/longjmp: fix PIC vs SHARED thinkos

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The logic in setjmp/__longjmp incorrectly uses "PIC" to figure out
whether the code is going into a shared library when it should be
using "SHARED".  If you build glibc with a gcc version that has PIE
enabled by default, then the code will try to use symbols that are
only in the shared library.

URL: https://bugs.gentoo.org/336914
This commit is contained in:
David Lamparter 2010-09-12 09:38:44 -04:00 committed by Mike Frysinger
parent 020167a4ce
commit 3ee578690f
3 changed files with 7 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2015-09-18 David Lamparter <equinox-gentoo@diac24.net>
* sysdeps/arm/setjmp.S: Change PIC to SHARED.
* sysdeps/arm/__longjmp.S: Likewise
2015-09-18 Wilco Dijkstra <wdijkstr@arm.com> 2015-09-18 Wilco Dijkstra <wdijkstr@arm.com>
* sysdeps/ieee754/dbl-64/s_signbit.c (__signbit): * sysdeps/ieee754/dbl-64/s_signbit.c (__signbit):

2
sysdeps/arm/__longjmp.S
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@ -81,7 +81,7 @@ ENTRY (__longjmp)
C_SYMBOL_NAME(_rtld_local_ro) \ C_SYMBOL_NAME(_rtld_local_ro) \
+ RTLD_GLOBAL_RO_DL_HWCAP_OFFSET) + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET)
# else # else
# ifdef PIC # ifdef SHARED
LDR_GLOBAL (a4, a3, C_SYMBOL_NAME(_rtld_global_ro), \ LDR_GLOBAL (a4, a3, C_SYMBOL_NAME(_rtld_global_ro), \
RTLD_GLOBAL_RO_DL_HWCAP_OFFSET) RTLD_GLOBAL_RO_DL_HWCAP_OFFSET)
# else # else

2
sysdeps/arm/setjmp.S
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@ -62,7 +62,7 @@ ENTRY (__sigsetjmp)
C_SYMBOL_NAME(_rtld_local_ro) \ C_SYMBOL_NAME(_rtld_local_ro) \
+ RTLD_GLOBAL_RO_DL_HWCAP_OFFSET) + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET)
# else # else
# ifdef PIC # ifdef SHARED
LDR_GLOBAL (a3, a4, C_SYMBOL_NAME(_rtld_global_ro), \ LDR_GLOBAL (a3, a4, C_SYMBOL_NAME(_rtld_global_ro), \
RTLD_GLOBAL_RO_DL_HWCAP_OFFSET) RTLD_GLOBAL_RO_DL_HWCAP_OFFSET)
# else # else