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| author | Rogerio Alves <rcardoso@linux.vnet.ibm.com> | 2018-07-16 15:07:10 -0300 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> | 2018-07-16 16:08:41 -0300 |
| commit | 52b2a80fae89d2a99ac3d1866a73c8bbf7b608ff (patch) | |
| tree | c861930d393bdd30c0cbdc7346aa388cee7eebf2 /sysdeps/powerpc/powerpc64/Makefile | |
| parent | 3ae725dfb6d7f61447d27d00ed83e573bd5454f4 (diff) | |
powerpc64: Always restore TOC on longjmp [BZ #21895]
This patch changes longjmp to always restore the TOC pointer (r2 register)
to the caller frame on powerpc64 and powerpc64le. This is related to bug
21895 that reports a situation where you have a static longjmp to a
shared object file.
[BZ #21895]
* sysdeps/powerpc/powerpc64/__longjmp-common.S: Remove condition code for
restoring r2 in longjmp.
* sysdeps/powerpc/powerpc64/Makefile: Added tst-setjmp-bug21895-static to
test list.
Added rules to build test tst-setjmp-bug21895-static.
Added module setjmp-bug21895 and rules to build a shared object from it.
* sysdeps/powerpc/powerpc64/setjmp-bug21895.c: New test file.
* sysdeps/powerpc/powerpc64/tst-setjmp-bug21895-static.c: New test file.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'sysdeps/powerpc/powerpc64/Makefile')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/Makefile | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile index 9d15db0328..a0bd0c9504 100644 --- a/sysdeps/powerpc/powerpc64/Makefile +++ b/sysdeps/powerpc/powerpc64/Makefile @@ -47,3 +47,15 @@ ifeq ($(subdir),gmon) CFLAGS-mcount.c += $(no-special-regs) sysdep_routines += ppc-mcount endif + +ifeq ($(subdir),setjmp) +tests += tst-setjmp-bug21895-static +tests-static += tst-setjmp-bug21895-static +modules-names += setjmp-bug21895 + +$(objpfx)tst-setjmp-bug21895-static: $(common-objpfx)dlfcn/libdl.a +$(objpfx)tst-setjmp-bug21895-static.out: $(objpfx)setjmp-bug21895.so + +tst-setjmp-bug21895-static-ENV = \ + LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)setjmp:$(common-objpfx)elf +endif |