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| author | James Lyon <jamesly0n@hotmail.com> | 2013-04-26 16:42:12 +0100 |
|---|---|---|
| committer | James Lyon <jamesly0n@hotmail.com> | 2013-04-26 16:42:12 +0100 |
| commit | 6ee366e765483f6b48537d97fc81ae56f13d1b7f (patch) | |
| tree | c9365133ee9c4cf1ec4fcee0641ac9adc2fe825d /lib | |
| parent | 41d76e1fcbe498b0d01e245f5a2d368a23760101 (diff) | |
| download | tinycc-6ee366e765483f6b48537d97fc81ae56f13d1b7f.tar.gz tinycc-6ee366e765483f6b48537d97fc81ae56f13d1b7f.tar.bz2 | |
Fixed x86-64 long double passing.
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.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libtcc1.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libtcc1.c b/lib/libtcc1.c index 159c401..53dbec4 100644 --- a/lib/libtcc1.c +++ b/lib/libtcc1.c @@ -645,9 +645,10 @@ void *__va_start(void *fp) void *__va_arg(struct __va_list_struct *ap, enum __va_arg_type arg_type, - int size) + int size, int align) { size = (size + 7) & ~7; + align = (align + 7) & ~7; switch (arg_type) { case __va_gen_reg: if (ap->gp_offset < 48) { @@ -668,6 +669,7 @@ void *__va_arg(struct __va_list_struct *ap, case __va_stack: use_overflow_area: ap->overflow_arg_area += size; + ap->overflow_arg_area = (char*)((long long)(ap->overflow_arg_area + align - 1) & -(long long)align); return ap->overflow_arg_area - size; default: |