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Fixed x86-64 long double passing.

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long double arguments require 16-byte alignment on the stack, which
requires adjustment when the the stack offset is not an evven number of
8-byte words.
This commit is contained in:
James Lyon
2013-04-26 16:42:12 +01:00
parent 41d76e1fcb
commit 6ee366e765
4 changed files with 206 additions and 123 deletions
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4
include/stdarg.h
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@ -7,13 +7,13 @@
typedef void *va_list;
va_list __va_start(void *fp);
void *__va_arg(va_list ap, int arg_type, int size);
void *__va_arg(va_list ap, int arg_type, int size, int align);
va_list __va_copy(va_list src);
void __va_end(va_list ap);
#define va_start(ap, last) ((ap) = __va_start(__builtin_frame_address(0)))
#define va_arg(ap, type) \
(*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type))))
(*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type))))
#define va_copy(dest, src) ((dest) = __va_copy(src))
#define va_end(ap) __va_end(ap)