| commit | fce3da82e56a66bdafcef437abef0fa7b82b8d2b | |
| author | Stefan Liebler <stli@linux.vnet.ibm.com> | |
| Tue, 4 Apr 2017 11:16:28 +0000 (4 13:16 +0200) | ||
| committer | Stefan Liebler <stli@linux.vnet.ibm.com> | |
| Tue, 4 Apr 2017 11:16:28 +0000 (4 13:16 +0200) | ||
| tree | d4a95276b96532152b8aa4414974b328f10bea1d | treesnapshot (tar.gz zip) |
| parent | 83f0ad2bc63f26dab10f47c8741245d93eb4077a | commitdiff |
S390: Clobber also r14 in TLS_LD, TLS_GD macros on 31bit.
This patch also clobbers r14 in TLS_LD, TLS_GD macros on 31bit.
This ensures that r14 isn't used to save and restore r12 while
r14 is clobbered by the bas-instruction.
As note:
r12 can't be added to clobber list as gcc would fail with:
error: PIC register clobbered by ‘12’ in ‘asm’
For 64bit this fix was already done in 2004 in the
commit b80af23ac6973e69df6cd23d221fa44fffb21e17.
ChangeLog:
* sysdeps/s390/s390-32/tls-macros.h (TLS_LD, TLS_GD):
Clobber also r14.
This patch also clobbers r14 in TLS_LD, TLS_GD macros on 31bit.
This ensures that r14 isn't used to save and restore r12 while
r14 is clobbered by the bas-instruction.
As note:
r12 can't be added to clobber list as gcc would fail with:
error: PIC register clobbered by ‘12’ in ‘asm’
For 64bit this fix was already done in 2004 in the
commit b80af23ac6973e69df6cd23d221fa44fffb21e17.
ChangeLog:
* sysdeps/s390/s390-32/tls-macros.h (TLS_LD, TLS_GD):
Clobber also r14.
| ChangeLog | diffblobblamehistory | |
| sysdeps/s390/s390-32/tls-macros.h | diffblobblamehistory |