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authorDale S. Rahn <rahnds@cvs.openbsd.org>1999-06-13 17:19:04 +0000
committerDale S. Rahn <rahnds@cvs.openbsd.org>1999-06-13 17:19:04 +0000
commit6a5148180f20b818a679ae5cee0e7a9110622113 (patch)
tree6d6f499d479566101ee208afec326025e89df09c /sys/arch
parentb104228c06766950f8a16165f5220816e41fcf3e (diff)
Transitional va-ppc.h that works with both egcs and gcc-2.8. It may
be possible to have more optimial egcs support.
Diffstat (limited to 'sys/arch')
-rw-r--r--sys/arch/powerpc/include/va-ppc.h72
1 files changed, 71 insertions, 1 deletions
diff --git a/sys/arch/powerpc/include/va-ppc.h b/sys/arch/powerpc/include/va-ppc.h
index 4bf23184a6c..54486c16a94 100644
--- a/sys/arch/powerpc/include/va-ppc.h
+++ b/sys/arch/powerpc/include/va-ppc.h
@@ -58,7 +58,11 @@ typedef struct {
#define __VA_GP_REGSAVE(AP,TYPE) \
((TYPE *) (void *) (&(((__va_regsave_t *) \
(AP)->reg_save_area)->__gp_save[(int)(AP)->gpr])))
+#if __GNUC_MINOR__ > 8
+#define GCC29
+#endif
+#ifndef GCC29
/* 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:
@@ -67,7 +71,14 @@ typedef struct {
#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 */
-
+#else /* GCC29 */
+/* 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. */
+#endif /* GCC29 */
+
+#ifndef GCC29
#define __va_words __builtin_args_info (0)
#define __va_fregno __builtin_args_info (1)
#define __va_nargs __builtin_args_info (2)
@@ -88,6 +99,13 @@ __extension__ ({ \
* sizeof (long))); \
(void)0; \
})
+#else /* GCC29 */
+#define __va_start_common(AP, FAKE) \
+__extension__ ({ \
+ (AP) = (struct __va_list_tag *)__builtin_alloca(sizeof(__gnuc_va_list)); \
+ __builtin_memcpy ((AP), __builtin_saveregs (), sizeof(__gnuc_va_list)); \
+ })
+#endif /* GCC29 */
#ifdef _STDARG_H /* stdarg.h support */
@@ -116,6 +134,7 @@ __extension__ ({ \
#define __va_aggregate_p(TYPE) (__builtin_classify_type(*(TYPE *)0) >= 12)
#define __va_size(TYPE) ((sizeof(TYPE) + sizeof (long) - 1) / sizeof (long))
+#ifndef GCC29
#define va_arg(AP,TYPE) \
__extension__ (*({ \
register TYPE *__ptr; \
@@ -168,6 +187,57 @@ __extension__ (*({ \
\
__ptr; \
}))
+#else /* GCC29 */
+#define va_arg(AP,TYPE) \
+__extension__ (*({ \
+ register TYPE *__ptr; \
+ \
+ if (__va_float_p (TYPE) && (AP)->fpr < 8) \
+ { \
+ __ptr = __VA_FP_REGSAVE (AP, TYPE); \
+ (AP)->fpr++; \
+ } \
+ \
+ else if (__va_aggregate_p (TYPE) && (AP)->gpr < 8) \
+ { \
+ __ptr = * __VA_GP_REGSAVE (AP, TYPE *); \
+ (AP)->gpr++; \
+ } \
+ \
+ else if (!__va_float_p (TYPE) && !__va_aggregate_p (TYPE) \
+ && (AP)->gpr + __va_size(TYPE) <= 8 \
+ && (!__va_longlong_p(TYPE) \
+ || (AP)->gpr + __va_size(TYPE) <= 8)) \
+ { \
+ if (__va_longlong_p(TYPE) && ((AP)->gpr & 1) != 0) \
+ (AP)->gpr++; \
+ \
+ __ptr = __VA_GP_REGSAVE (AP, TYPE); \
+ (AP)->gpr += __va_size (TYPE); \
+ } \
+ \
+ else if (!__va_float_p (TYPE) && !__va_aggregate_p (TYPE) \
+ && (AP)->gpr < 8) \
+ { \
+ (AP)->gpr = 8; \
+ __ptr = (TYPE *) (void *) (__va_overflow(AP)); \
+ __va_overflow(AP) += __va_size (TYPE) * sizeof (long); \
+ } \
+ \
+ else if (__va_aggregate_p (TYPE)) \
+ { \
+ __ptr = * (TYPE **) (void *) (__va_overflow(AP)); \
+ __va_overflow(AP) += sizeof (TYPE *); \
+ } \
+ else \
+ { \
+ __ptr = (TYPE *) (void *) (__va_overflow(AP)); \
+ __va_overflow(AP) += __va_size (TYPE) * sizeof (long); \
+ } \
+ \
+ __ptr; \
+}))
+#endif /* not GCC29 */
#define va_end(AP) ((void)0)