diff options
author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-09-06 14:44:15 +0200 |
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committer | Stefan Liebler <stli@linux.vnet.ibm.com> | 2016-09-06 14:44:15 +0200 |
commit | a0d47f487fe250c63cc21e9608b85bc02dc2a006 (patch) | |
tree | c733063f3ab96b40cac1fe55cf54dda3b672eebb /ChangeLog | |
parent | 4bf5f2224baa1590f92f7a26930928fe9f7e4b57 (diff) |
S390: Support PLT and GOT references in check-localplt.
on s390x the test elf/check-localplt is failing after recent commits:
"elf: Do not use memalign for TCB/TLS blocks allocation [BZ #17730]"
"elf: Avoid using memalign for TLS allocations [BZ #17730]"
"elf: dl-minimal malloc needs to respect fundamental alignment"
due to "Missing required PLT reference: ld.so: __libc_memalign".
After the commits __libc_memalign is only called in elf/dl-minimal.c in
malloc() function in ld.so and gcc -O2/-O3 leads to R_390_GLOB_DAT
instead of R_390_JMP_SLOT. __libc_memalign is called via
function-pointer loaded from GOT instead of calling via a plt-stub. In
this case there is the R_390_GLOB_DAT relocation in section .rela.dyn
instead of R_390_JMP_SLOT in .rela.plt.
This patch marks ld.so: __libc_memalign with R_390_GLOB_DAT in
localplt.data to allow both relocations.
If build with -fno-optimize-sibling-calls or on s390(31bit) a
R_390_JMP_SLOT is generated.
ChangeLog:
* sysdeps/unix/sysv/linux/s390/localplt.data: Mark
ld.so: __libc_memalign with "+ RELA R_390_GLOB_DAT".
Diffstat (limited to 'ChangeLog')
-rw-r--r-- | ChangeLog | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -1,3 +1,8 @@ +2016-09-06 Stefan Liebler <stli@linux.vnet.ibm.com> + + * sysdeps/unix/sysv/linux/s390/localplt.data: Mark ld.so: + __libc_memalign with "+ RELA R_390_GLOB_DAT". + 2016-09-06 Florian Weimer <fweimer@redhat.com> Convert malloc to __libc_lock. Automated part, using this Perl |