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| author | Brooks Davis <brooks@FreeBSD.org> | 2024-01-09 19:37:42 +0000 |
|---|---|---|
| committer | Brooks Davis <brooks@FreeBSD.org> | 2024-01-09 22:59:29 +0000 |
| commit | 13f345cdecd3e208b9226e3b1dcc39737ab2881b (patch) | |
| tree | 8066357b4083b2b2d8a1853fd9c567be58b02a35 | |
| parent | 8e2c2992da7aab7213b6349ff54dbaf1dcc05678 (diff) | |
| download | src-13f345cdecd3e208b9226e3b1dcc39737ab2881b.tar.gz src-13f345cdecd3e208b9226e3b1dcc39737ab2881b.zip | |
powerpc64/SYS.h: implement _SYSCALL_BODY() macro
Add _SYSCALL_BODY() macro which invokes the syscall via _SYCALL() and
calls cerror as required. Use to implement PSEUDO() and RSYSCALL().
Reviewed by: jhibbits
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D43322
| -rw-r--r-- | lib/libc/powerpc64/SYS.h | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/lib/libc/powerpc64/SYS.h b/lib/libc/powerpc64/SYS.h index dccd08b63541..bf8bc6cc0e27 100644 --- a/lib/libc/powerpc64/SYS.h +++ b/lib/libc/powerpc64/SYS.h @@ -40,11 +40,7 @@ li 0,(SYS_##name); \ sc -#define PSEUDO(name) \ - .text; \ - .align 2; \ -ENTRY(__sys_##name); \ - WEAK_REFERENCE(__sys_##name, _##name); \ +#define _SYSCALL_BODY(name) \ _SYSCALL(name); \ bnslr; \ mflr %r0; \ @@ -55,7 +51,14 @@ ENTRY(__sys_##name); \ addi %r1,%r1,48; \ ld %r0,16(%r1); \ mtlr %r0; \ - blr; \ + blr + +#define PSEUDO(name) \ + .text; \ + .align 2; \ +ENTRY(__sys_##name); \ + WEAK_REFERENCE(__sys_##name, _##name); \ + _SYSCALL_BODY(name); \ END(__sys_##name) #define RSYSCALL(name) \ @@ -64,16 +67,5 @@ END(__sys_##name) ENTRY(__sys_##name); \ WEAK_REFERENCE(__sys_##name, name); \ WEAK_REFERENCE(__sys_##name, _##name); \ - _SYSCALL(name); \ - bnslr; \ - \ - mflr %r0; \ - std %r0,16(%r1); \ - stdu %r1,-48(%r1); \ - bl CNAME(HIDENAME(cerror)); \ - nop; \ - addi %r1,%r1,48; \ - ld %r0,16(%r1); \ - mtlr %r0; \ - blr; \ + _SYSCALL_BODY(name); \ END(__sys_##name) |