diff options
| author | Brooks Davis <brooks@FreeBSD.org> | 2023-12-21 17:57:14 +0000 |
|---|---|---|
| committer | Brooks Davis <brooks@FreeBSD.org> | 2023-12-21 17:57:14 +0000 |
| commit | e88e1272792e41cbf0a5af1f5f0a858afece0475 (patch) | |
| tree | 6ca2a0837ab06e293108ba680f08e4fb1c6b657d | |
| parent | bd1654ce92569bbfbe513749db08cdd781b3a036 (diff) | |
power*/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/D43056
| -rw-r--r-- | lib/libc/powerpc/SYS.h | 13 | ||||
| -rw-r--r-- | lib/libc/powerpc64/SYS.h | 28 |
2 files changed, 17 insertions, 24 deletions
diff --git a/lib/libc/powerpc/SYS.h b/lib/libc/powerpc/SYS.h index 8c47a65735f5..24315f369531 100644 --- a/lib/libc/powerpc/SYS.h +++ b/lib/libc/powerpc/SYS.h @@ -40,14 +40,17 @@ li 0,(SYS_##name); \ sc +#define _SYSCALL_BODY(name) \ + _SYSCALL(name) \ + bnslr; \ + b CNAME(HIDENAME(cerror)) + #define PSEUDO(name) \ .text; \ .align 2; \ ENTRY(__sys_##name); \ WEAK_REFERENCE(__sys_##name, _##name); \ - _SYSCALL(name); \ - bnslr; \ - b CNAME(HIDENAME(cerror)); \ + _SYSCALL_BODY(name); \ END(__sys_##name) #define RSYSCALL(name) \ @@ -56,7 +59,5 @@ END(__sys_##name) ENTRY(__sys_##name); \ WEAK_REFERENCE(__sys_##name, name); \ WEAK_REFERENCE(__sys_##name, _##name); \ - _SYSCALL(name); \ - bnslr; \ - b CNAME(HIDENAME(cerror)); \ + _SYSCALL_BODY(name); \ END(__sys_##name) 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) |