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| author | julian <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
| commit | 619b731f5bb5e09dcf1eaf1fbd96383ca64398fd (patch) | |
| tree | a89c7f50ec371cef4418259b9dccdd31ebb2f61f /lib/libc/i386/SYS.h | |
| parent | 663b14fb2f3198fb0bfb62ae16b6b56c2a4dd055 (diff) | |
| download | FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.zip FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.tar.gz | |
Reviewed by: julian and (hsu?)
Submitted by: John Birrel(L?)
changes for threadsafe operations
Diffstat (limited to 'lib/libc/i386/SYS.h')
| -rw-r--r-- | lib/libc/i386/SYS.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/lib/libc/i386/SYS.h b/lib/libc/i386/SYS.h index 53837ab..9e989e5 100644 --- a/lib/libc/i386/SYS.h +++ b/lib/libc/i386/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 */ |
