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Make minor improvements

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This commit is contained in:
Justine Tunney 2020-12-19 11:21:04 -08:00
parent 1fc91f3580
commit b562d6fdb3
41 changed files with 1948 additions and 92 deletions
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10
libc/runtime/valist.c
View file

@ -17,16 +17,16 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.h"
#include "libc/runtime/valist.h"
static void *__va_arg_mem(struct __va *ap, unsigned long sz, unsigned align) {
void *r = ap->overflow_arg_area;
if (align > 8) r = (void *)(((unsigned long)r + 15) / 16 * 16);
ap->overflow_arg_area = (void *)(((unsigned long)r + sz + 7) / 8 * 8);
static void *__va_arg_mem(struct __va *ap, size_t sz, size_t align) {
void *r = (void *)ROUNDUP((intptr_t)ap->overflow_arg_area, align);
ap->overflow_arg_area = (void *)ROUNDUP((intptr_t)r + sz, 8);
return r;
}
void *__va_arg(struct __va *ap, unsigned long sz, unsigned align, unsigned k) {
void *__va_arg(struct __va *ap, size_t sz, unsigned align, unsigned k) {
void *r;
switch (k) {
case 0:

6
libc/runtime/valist.h
View file

@ -4,13 +4,13 @@
COSMOPOLITAN_C_START_
struct __va {
unsigned int gp_offset;
unsigned int fp_offset;
uint32_t gp_offset;
uint32_t fp_offset;
void *overflow_arg_area;
void *reg_save_area;
};
void *__va_arg(struct __va *, unsigned long, unsigned, unsigned);
void *__va_arg(struct __va *, size_t, unsigned, unsigned);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */