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| author | Joseph Myers <joseph@codesourcery.com> | 2018-12-17 18:31:50 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2018-12-17 18:31:50 +0000 |
| commit | 551e81d9e321ebe63465be2607fd251da38b4b0b (patch) | |
| tree | e7300d8430e69b789b7df49ee9c105f70bdddfde | |
| parent | df648905e7d8340bb3e78813fd25e2077b9685d9 (diff) | |
| download | glibc-551e81d9e321ebe63465be2607fd251da38b4b0b.tar.gz glibc-551e81d9e321ebe63465be2607fd251da38b4b0b.tar.xz glibc-551e81d9e321ebe63465be2607fd251da38b4b0b.zip | |
Do not clobber r12 for ia64 syscalls.
GCC mainline now gives errors for an asm that clobbers the stack pointer. According to <https://gcc.gnu.org/ml/gcc-patches/2018-12/msg00932.html> GCC previously ignored such a clobber; thus, this patch removes it from the clobbers for ia64 syscalls. Tested with build-many-glibcs.py for ia64-linux-gnu. * sysdeps/unix/sysv/linux/ia64/sysdep.h (ASM_CLOBBERS_6_COMMON): Do not clobber r12.
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ia64/sysdep.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 16ca8b7b27..10eba56bb6 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2018-12-17 Joseph Myers <joseph@codesourcery.com> + * sysdeps/unix/sysv/linux/ia64/sysdep.h (ASM_CLOBBERS_6_COMMON): + Do not clobber r12. + * scripts/glibcextract.py (compare_macro_consts): Take parameters to allow extra macros from first or second sources. * sysdeps/unix/sysv/linux/tst-mman-consts.py: New file. diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep.h b/sysdeps/unix/sysv/linux/ia64/sysdep.h index f8f8d900c6..0505b966d2 100644 --- a/sysdeps/unix/sysv/linux/ia64/sysdep.h +++ b/sysdeps/unix/sysv/linux/ia64/sysdep.h @@ -346,7 +346,7 @@ #define ASM_CLOBBERS_5 ASM_CLOBBERS_6, "out5" #define ASM_CLOBBERS_6_COMMON , "out6", "out7", \ /* Non-stacked integer registers, minus r8, r10, r15. */ \ - "r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \ + "r2", "r3", "r9", "r11", "r13", "r14", "r16", "r17", "r18", \ "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \ "r28", "r29", "r30", "r31", \ /* Predicate registers. */ \ |