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Add atomics to chibicc

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This change also fixes #434 and makes the chibicc assembler better.
This commit is contained in:
Justine Tunney 2022-06-20 03:08:00 -07:00
parent 5ddf43332e
commit a988896048
21 changed files with 650 additions and 445 deletions
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10
libc/linux/futex.h
View file

@ -1,16 +1,16 @@
#ifndef COSMOPOLITAN_LIBC_LINUX_FUTEX_H_
#define COSMOPOLITAN_LIBC_LINUX_FUTEX_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
#include "libc/calls/struct/timespec.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
forceinline int LinuxFutexWait(void *addr, int expect,
struct timespec *timeout) {
int ax;
register void *r10 asm("r10") = timeout;
asm volatile("syscall"
asm volatile("mov\t%5,%%r10\n\t"
"syscall"
: "=a"(ax)
: "0"(202), "D"(addr), "S"(0), "d"(expect), "r"(r10)
: "rcx", "r11", "memory");
: "0"(202), "D"(addr), "S"(0), "d"(expect), "g"(timeout)
: "rcx", "r10", "r11", "memory");
return ax;
}