diff options
Diffstat (limited to 'lib/libc/amd64/SYS.h')
| -rw-r--r-- | lib/libc/amd64/SYS.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/lib/libc/amd64/SYS.h b/lib/libc/amd64/SYS.h index 53837ab541f5..9e989e5116af 100644 --- a/lib/libc/amd64/SYS.h +++ b/lib/libc/amd64/SYS.h @@ -35,7 +35,7 @@ * * from: @(#)SYS.h 5.5 (Berkeley) 5/7/91 * - * $Id: SYS.h,v 1.3 1993/11/04 00:01:17 paul Exp $ + * $Id: SYS.h,v 1.2 1994/08/05 01:17:57 wollman Exp $ */ #include <sys/syscall.h> @@ -63,6 +63,21 @@ #define SYSCALL(x) 2: jmp cerror; ENTRY(x); lea SYS_/**/x,%eax; LCALL(7,0); jb 2b #define RSYSCALL(x) SYSCALL(x); ret + +#ifdef _THREAD_SAFE +/* + * Support for user-space threads which require that some syscalls be + * private to the threaded library. + */ +#define PSYSCALL(x) 2: jmp cerror; ENTRY(_thread_sys_/**/x); lea SYS_/**/x,%eax; LCALL(7,0); jb 2b +#else +/* + * The non-threaded library defaults to traditional syscalls where + * the function name matches the syscall name. + */ +#define PSYSCALL(x) SYSCALL(x) +#endif +#define PRSYSCALL(x) PSYSCALL(x); ret #define PSEUDO(x,y) ENTRY(x); lea SYS_/**/y, %eax; ; LCALL(7,0); ret #define CALL(x,y) call _/**/y; addl $4*x,%esp /* gas fucks up offset -- although we don't currently need it, do for BCS */ |