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| author | Richard Henderson <rth@cygnus.com> | 1999-04-30 08:06:23 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 1999-04-30 08:06:23 -0700 |
| commit | 2c4974b72a5f9a9744b2319b85e4eb239e601c44 (patch) | |
| tree | 7706f72402a9c7f3fb2f9ab9b6a37610041e752f /gcc/ginclude | |
| parent | d8f8e9ba17173a2b929b6047c6892610271cf252 (diff) | |
| download | gcc-2c4974b72a5f9a9744b2319b85e4eb239e601c44.zip gcc-2c4974b72a5f9a9744b2319b85e4eb239e601c44.tar.gz gcc-2c4974b72a5f9a9744b2319b85e4eb239e601c44.tar.bz2 | |
va-ppc.h (__va_start_common): Let __builtin_saveregs do the work.
* va-ppc.h (__va_start_common): Let __builtin_saveregs do the work.
* rs6000.c (expand_builtin_saveregs): For V4, initialize a private
va_list struct, and return a pointer to it.
(setup_incoming_varargs): V4 save area based off virtual_stack_vars
instead of frame_pointer.
From-SVN: r26710
Diffstat (limited to 'gcc/ginclude')
| -rw-r--r-- | gcc/ginclude/va-ppc.h | 35 |
1 files changed, 7 insertions, 28 deletions
diff --git a/gcc/ginclude/va-ppc.h b/gcc/ginclude/va-ppc.h index 736369d..6d81497 100644 --- a/gcc/ginclude/va-ppc.h +++ b/gcc/ginclude/va-ppc.h @@ -59,34 +59,13 @@ typedef struct { ((TYPE *) (void *) (&(((__va_regsave_t *) \ (AP)->reg_save_area)->__gp_save[(int)(AP)->gpr]))) -/* Common code for va_start for both varargs and stdarg. This depends - on the format of rs6000_args in rs6000.h. The fields used are: - - #0 WORDS # words used for GP regs/stack values - #1 FREGNO next available FP register - #2 NARGS_PROTOTYPE # args left in the current prototype - #3 ORIG_NARGS original value of NARGS_PROTOTYPE - #4 VARARGS_OFFSET offset from frame pointer of varargs area */ - -#define __va_words __builtin_args_info (0) -#define __va_fregno __builtin_args_info (1) -#define __va_nargs __builtin_args_info (2) -#define __va_orig_nargs __builtin_args_info (3) -#define __va_varargs_offset __builtin_args_info (4) - -#define __va_start_common(AP, FAKE) \ -__extension__ ({ \ - register int __words = __va_words - FAKE; \ - \ - (AP)->gpr = (__words < 8) ? __words : 8; \ - (AP)->fpr = __va_fregno - 33; \ - (AP)->reg_save_area = (((char *) __builtin_frame_address (0)) \ - + __va_varargs_offset); \ - __va_overflow(AP) = ((char *)__builtin_saveregs () \ - + (((__words >= 8) ? __words - 8 : 0) \ - * sizeof (long))); \ - (void)0; \ -}) +/* Common code for va_start for both varargs and stdarg. We allow all + the work to be done by __builtin_saveregs. It returns a pointer to + a va_list that was constructed on the stack; we must simply copy it + to the user's variable. */ + +#define __va_start_common(AP, FAKE) \ + __builtin_memcpy ((AP), __builtin_saveregs (), sizeof(__gnuc_va_list)) #ifdef _STDARG_H /* stdarg.h support */ |