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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-12-02 09:09:55 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-12-02 09:09:55 +0100 |
| commit | f91d3fd64d9b98054f5663a8fb533d15ca9f5943 (patch) | |
| tree | f04f8023c6d50dfe79afb4b9bf8b29f9616dbe9f /elf/ifuncmain4static.c | |
| parent | 55a38f82369669e181a05bcf2ac6c647dcd9b261 (diff) | |
| download | glibc-f91d3fd64d9b98054f5663a8fb533d15ca9f5943.tar.gz glibc-f91d3fd64d9b98054f5663a8fb533d15ca9f5943.tar.xz glibc-f91d3fd64d9b98054f5663a8fb533d15ca9f5943.zip | |
Fix new testcase elf/tst-latepthread on s390x.
The first dlopen ("tst-latepthreadmod.so", RTLD_LOCAL | RTLD_LAZY) call
in elf/tst-latepthread.c fails on s390x with "error: dlopen failed:
.../build-s390x/elf/tst-latepthreadmod.so:
undefined symbol: this_function_is_not_defined".
In elf/tst-latepthreadmod.c, this_function_is_not_defined is a sibling
call which leads to a R_390_GLOB_DAT relocation in .rela.dyn instead of
a R_390_JMP_SLOT in .rela.plt.
As RTLD_LAZY skips the JMP_SLOT relocations, but not GLOB_DAT ones,
the dlopen call fails. If elf/tst-latepthreadmod.c is build with
-fno-optimize-sibling-calls, a JMP_SLOT relocation is generated for
this_function_is_not_defined and the test passes.
ChangeLog:
* elf/Makefile (CFLAGS-tst-latepthreadmod.c):
Add -fno-optimize-sibling-calls.
Diffstat (limited to 'elf/ifuncmain4static.c')
0 files changed, 0 insertions, 0 deletions