diff options
| author | Brooks Davis <brooks@FreeBSD.org> | 2023-12-18 22:28:42 +0000 |
|---|---|---|
| committer | Brooks Davis <brooks@FreeBSD.org> | 2023-12-18 22:28:42 +0000 |
| commit | 300bbb3a43e3cc1337b827b72ff5a22c4321a317 (patch) | |
| tree | 5072ed6260bf51b5e9b324c9b48826653d1d0ee3 | |
| parent | 604de40a024c760df5db542171d3953493f56bfb (diff) | |
| download | src-300bbb3a43e3cc1337b827b72ff5a22c4321a317.tar.gz src-300bbb3a43e3cc1337b827b72ff5a22c4321a317.zip | |
riscv/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: imp, markj
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D43057
| -rw-r--r-- | lib/libc/riscv/SYS.h | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/lib/libc/riscv/SYS.h b/lib/libc/riscv/SYS.h index 1e3e67834494..47c79e38f916 100644 --- a/lib/libc/riscv/SYS.h +++ b/lib/libc/riscv/SYS.h @@ -40,23 +40,22 @@ li t0, SYS_ ## name; \ ecall -#define PSEUDO(name) \ -ENTRY(__sys_##name); \ - WEAK_REFERENCE(__sys_##name, _##name); \ +#define _SYSCALL_BODY(name) \ _SYSCALL(name); \ bnez t0, 1f; \ ret; \ 1: la t1, cerror; \ - jr t1; \ + jr t1 + +#define PSEUDO(name) \ +ENTRY(__sys_##name); \ + WEAK_REFERENCE(__sys_##name, _##name); \ + _SYSCALL_BODY(name); \ END(__sys_##name) #define RSYSCALL(name) \ ENTRY(__sys_##name); \ WEAK_REFERENCE(__sys_##name, name); \ WEAK_REFERENCE(__sys_##name, _##name); \ - _SYSCALL(name); \ - bnez t0, 1f; \ - ret; \ -1: la t1, cerror; \ - jr t1; \ + _SYSCALL_BODY(name); \ END(__sys_##name) |