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| author | jasone <jasone@FreeBSD.org> | 2000-01-12 09:23:48 +0000 |
|---|---|---|
| committer | jasone <jasone@FreeBSD.org> | 2000-01-12 09:23:48 +0000 |
| commit | 75903038bc52105bc7479fe5f2b75f22f10c1c50 (patch) | |
| tree | c9e28eda650bbd7eaa3eb22c8d7c75d00a96a451 /lib/libc/i386/SYS.h | |
| parent | 688bb99b3f790aad607b949661d0361486bbe346 (diff) | |
| download | FreeBSD-src-75903038bc52105bc7479fe5f2b75f22f10c1c50.zip FreeBSD-src-75903038bc52105bc7479fe5f2b75f22f10c1c50.tar.gz | |
Add three-tier symbol naming in support of POSIX thread cancellation
points. For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep(). The arrows represent weak aliases. For
system calls, the pattern is _read() <-- _libc_read() <-- read().
Diffstat (limited to 'lib/libc/i386/SYS.h')
| -rw-r--r-- | lib/libc/i386/SYS.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/libc/i386/SYS.h b/lib/libc/i386/SYS.h index a5daa1c..5061052 100644 --- a/lib/libc/i386/SYS.h +++ b/lib/libc/i386/SYS.h @@ -43,15 +43,20 @@ #define SYSCALL(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \ ENTRY(__CONCAT(_,x)); \ + .weak CNAME(__CONCAT(_libc_,x)); \ + .set CNAME(__CONCAT(_libc_,x)),CNAME(__CONCAT(_,x)); \ .weak CNAME(x); \ - .set CNAME(x),CNAME(__CONCAT(_,x)); \ + .set CNAME(x),CNAME(__CONCAT(_libc_,x)); \ lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b #define RSYSCALL(x) SYSCALL(x); ret #define PSEUDO(x,y) ENTRY(__CONCAT(_,x)); \ + .weak CNAME(__CONCAT(_libc_,x)); \ + .set CNAME(__CONCAT(_libc_,x)),CNAME(__CONCAT(_,x)); \ .weak CNAME(x); \ - .set CNAME(x),CNAME(__CONCAT(_,x)); \ + .set CNAME(x),CNAME(__CONCAT(_libc_,x)); \ lea __CONCAT(SYS_,y), %eax; KERNCALL; ret + /* gas messes up offset -- although we don't currently need it, do for BCS */ #define LCALL(x,y) .byte 0x9a ; .long y; .word x |
