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m68k: fix cancellable syscall with 5 or 6 arguments

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This commit is contained in:
Andreas Schwab 2012-11-18 01:07:22 +01:00
parent e510ab5eff
commit 67f2b51c62
2 changed files with 10 additions and 5 deletions
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5
ports/ChangeLog.m68k
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@ -1,3 +1,8 @@
2012-11-18 Andreas Schwab <schwab@linux-m68k.org>
* sysdeps/unix/sysv/linux/m68k/nptl/sysdep-cancel.h (_DOCARGS_5)
(UNDOCARGS_5): Save %d5 on stack instead of in %a1.
2012-11-15 Andreas Schwab <schwab@linux-m68k.org>
* sysdeps/m68k/dl-machine.h (ELF_MACHINE_RUNTIME_FIXUP_PARAMS):

10
ports/sysdeps/unix/sysv/linux/m68k/nptl/sysdep-cancel.h
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@ -69,8 +69,6 @@
# define _DOCARGS_2(n) DOCARGS_0 move.l n+4(%sp), %d2; _DOCARGS_1 (n)
# define UNDOCARGS_2 UNDOCARGS_0
/* TODO: We can optimize DOCARGS_{3, 4} by saving registers to a0 and a1
instead of pushing them on stack. */
# define DOCARGS_3 _DOCARGS_3 (12)
# define _DOCARGS_3(n) move.l %d3, -(%sp); \
cfi_adjust_cfa_offset (4); cfi_rel_offset (%d3, 0); \
@ -86,9 +84,11 @@
cfi_adjust_cfa_offset (-4); cfi_restore (%d4);
# define DOCARGS_5 _DOCARGS_5 (20)
# define _DOCARGS_5(n) move.l %d5, %a1; cfi_register (%d5, a1); \
move.l n(%sp), %d5; _DOCARGS_4 (n-4)
# define UNDOCARGS_5 UNDOCARGS_4 move.l %a1, %d5; cfi_restore (%d5);
# define _DOCARGS_5(n) move.l %d5, -(%sp); \
cfi_adjust_cfa_offset (4); cfi_rel_offset (%d5, 0); \
move.l n+4(%sp), %d5; _DOCARGS_4 (n)
# define UNDOCARGS_5 UNDOCARGS_4 move.l (%sp)+, %d5; \
cfi_adjust_cfa_offset (-4); cfi_restore (%d5);
# define DOCARGS_6 _DOCARGS_6 (24)
# define _DOCARGS_6(n) move.l n(%sp), %a0; _DOCARGS_5 (n-4)