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S/390: Don't use r11 in INTERNAL_VSYSCALL_NCS macro

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Andreas Krebbel 2011-07-19 20:29:27 -04:00 committed by Ulrich Drepper
parent c8835729b8
commit 19df733e64
3 changed files with 17 additions and 8 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2011-07-13 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
(INTERNAL_VSYSCALL_NCS): Use r10 for backing up the return address
register in order to avoid conflicts with the soft frame pointer
being held in r11 when necessary.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
(INTERNAL_VSYSCALL_NCS): Likewise.
2011-07-14 Marek Polacek <mpolacek@redhat.com> 2011-07-14 Marek Polacek <mpolacek@redhat.com>
* elf/dl-fini.c (_dl_sort_fini): Remove unused link_map *l argument, * elf/dl-fini.c (_dl_sort_fini): Remove unused link_map *l argument,

8
sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h
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@ -50,7 +50,7 @@
even if the call succeeded. E.g., the `lseek' system call might return even if the call succeeded. E.g., the `lseek' system call might return
a large offset. Therefore we must not anymore test for < 0, but test a large offset. Therefore we must not anymore test for < 0, but test
for a real error by making sure the value in gpr2 is a real error for a real error by making sure the value in gpr2 is a real error
number. Linus said he will make sure the no syscall returns a value number. Linus said he will make sure that no syscall returns a value
in -1 .. -4095 as a valid result so we can savely test with -4095. */ in -1 .. -4095 as a valid result so we can savely test with -4095. */
#undef PSEUDO #undef PSEUDO
@ -368,12 +368,12 @@
DECLARGS_##nr(args) \ DECLARGS_##nr(args) \
register long _ret asm("2"); \ register long _ret asm("2"); \
asm volatile ( \ asm volatile ( \
"lr 11,14\n\t" \ "lr 10,14\n\t" \
"basr 14,%1\n\t" \ "basr 14,%1\n\t" \
"lr 14,11\n\t" \ "lr 14,10\n\t" \
: "=d" (_ret) \ : "=d" (_ret) \
: "d" (fn) ASMFMT_##nr \ : "d" (fn) ASMFMT_##nr \
: "cc", "memory", "0", "1", "11" CLOBBER_##nr); \ : "cc", "memory", "0", "1", "10" CLOBBER_##nr); \
_ret; }) _ret; })
/* Pointer mangling support. */ /* Pointer mangling support. */

8
sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
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@ -62,7 +62,7 @@
even if the call succeeded. E.g., the `lseek' system call might return even if the call succeeded. E.g., the `lseek' system call might return
a large offset. Therefore we must not anymore test for < 0, but test a large offset. Therefore we must not anymore test for < 0, but test
for a real error by making sure the value in gpr2 is a real error for a real error by making sure the value in gpr2 is a real error
number. Linus said he will make sure the no syscall returns a value number. Linus said he will make sure that no syscall returns a value
in -1 .. -4095 as a valid result so we can savely test with -4095. */ in -1 .. -4095 as a valid result so we can savely test with -4095. */
#undef PSEUDO #undef PSEUDO
@ -370,12 +370,12 @@
DECLARGS_##nr(args) \ DECLARGS_##nr(args) \
register long _ret asm("2"); \ register long _ret asm("2"); \
asm volatile ( \ asm volatile ( \
"lgr 11,14\n\t" \ "lgr 10,14\n\t" \
"basr 14,%1\n\t" \ "basr 14,%1\n\t" \
"lgr 14,11\n\t" \ "lgr 14,10\n\t" \
: "=d" (_ret) \ : "=d" (_ret) \
: "a" (fn) ASMFMT_##nr \ : "a" (fn) ASMFMT_##nr \
: "cc", "memory", "0", "1", "11" CLOBBER_##nr); \ : "cc", "memory", "0", "1", "10" CLOBBER_##nr); \
_ret; }) _ret; })
/* Pointer mangling support. */ /* Pointer mangling support. */