cosmopolitan/libc/linux/read.h

16 lines
484 B
C

#ifndef COSMOPOLITAN_LIBC_LINUX_READ_H_
#define COSMOPOLITAN_LIBC_LINUX_READ_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
forceinline long LinuxRead(long fd, void *data, unsigned long size) {
long rc;
asm volatile("syscall"
: "=a"(rc), "=m"(*(char(*)[size])data)
: "0"(0), "D"(fd), "S"(data), "d"(size)
: "rcx", "r11", "memory");
return rc;
}
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_LINUX_READ_H_ */