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| author | Waldemar Brodkorb <wbx@openadk.org> | 2015-10-17 11:17:07 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2015-10-19 01:37:11 +0200 |
| commit | 312f482d395b591398296b5472a3884a12716cbd (patch) | |
| tree | 682402fa4c470d4aa7c1334f7616408779559a8f /libc/sysdeps/linux/lm32/bits/syscalls.h | |
| parent | c807e03c88504cf01508daa6dbae9e93dacfcf3c (diff) | |
lm32: add new architecture
Add support for FPGA systems from Lattice Semiconductor
http://www.latticesemi.com
Merge https://github.com/m-labs/uclibc-lm32.git
Diffstat (limited to 'libc/sysdeps/linux/lm32/bits/syscalls.h')
| -rw-r--r-- | libc/sysdeps/linux/lm32/bits/syscalls.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/lm32/bits/syscalls.h b/libc/sysdeps/linux/lm32/bits/syscalls.h new file mode 100644 index 000000000..29569545b --- /dev/null +++ b/libc/sysdeps/linux/lm32/bits/syscalls.h @@ -0,0 +1,59 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + + +#ifndef __ASSEMBLER__ + +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({ \ + LOAD_ARGS_##nr (args); \ + register int __ret __asm__("r1"); \ + register int _scno __asm__("r8") = name; \ + __asm__ __volatile__("scall" \ + : "=r" (__ret) \ + : "r"(_scno) ASM_ARGS_##nr \ + : __SYSCALL_CLOBBERS ); \ + __ret; \ + }) + +/* original port had ret >= -125 ?! */ +#define LOAD_ARGS_0() do { } while(0) +#define ASM_ARGS_0 +#define LOAD_ARGS_1(a1) \ + int _a1 = (int)(a1); \ + LOAD_ARGS_0(); \ + register int __a1 __asm__("r1") = _a1 +#define ASM_ARGS_1 ASM_ARGS_0, "0"(__a1) +#define LOAD_ARGS_2(a1, a2) \ + int _a2 = (int)(a2); \ + LOAD_ARGS_1(a1); \ + register int __a2 __asm__("r2") = _a2 +#define ASM_ARGS_2 ASM_ARGS_1, "r"(__a2) +#define LOAD_ARGS_3(a1, a2, a3) \ + int _a3 = (int)(a3); \ + LOAD_ARGS_2(a1, a2); \ + register int __a3 __asm__("r3") = _a3 +#define ASM_ARGS_3 ASM_ARGS_2, "r"(__a3) +#define LOAD_ARGS_4(a1, a2, a3, a4) \ + int _a4 = (int)(a4); \ + LOAD_ARGS_3(a1, a2, a3); \ + register int __a4 __asm__("r4") = _a4 +#define ASM_ARGS_4 ASM_ARGS_3, "r"(__a4) +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + int _a5 = (int)(a5); \ + LOAD_ARGS_4(a1, a2, a3, a4); \ + register int __a5 __asm__("r5") = _a5 +#define ASM_ARGS_5 ASM_ARGS_4, "r"(__a5) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + int _a6 = (int)(a6); \ + LOAD_ARGS_5(a1, a2, a3, a4, a5); \ + register int __a6 __asm__("r6") = _a6 +#define ASM_ARGS_6 ASM_ARGS_5, "r"(__a6) + +#define __SYSCALL_CLOBBERS + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ |