diff options
Diffstat (limited to 'libc/sysdeps/linux/arm')
| -rw-r--r-- | libc/sysdeps/linux/arm/bits/syscalls.h | 4 | ||||
| -rw-r--r-- | libc/sysdeps/linux/arm/sysdep.h | 111 |
2 files changed, 4 insertions, 111 deletions
diff --git a/libc/sysdeps/linux/arm/bits/syscalls.h b/libc/sysdeps/linux/arm/bits/syscalls.h index e447a7b2d..5b305640f 100644 --- a/libc/sysdeps/linux/arm/bits/syscalls.h +++ b/libc/sysdeps/linux/arm/bits/syscalls.h @@ -83,6 +83,10 @@ } \ (int) __internal_sys_result; }) \ ) + +#undef INTERNAL_SYSCALL_ARM +#define INTERNAL_SYSCALL_ARM(name, err, nr, args...) \ + INTERNAL_SYSCALL_NCS(__ARM_NR_##name, err, nr, args) #endif #define INTERNAL_SYSCALL_ERROR_P(val, err) \ diff --git a/libc/sysdeps/linux/arm/sysdep.h b/libc/sysdeps/linux/arm/sysdep.h index 14529892d..cdc276c8a 100644 --- a/libc/sysdeps/linux/arm/sysdep.h +++ b/libc/sysdeps/linux/arm/sysdep.h @@ -276,117 +276,6 @@ __local_syscall_error: \ #define UNDOARGS_6 ldmfd sp!, {r4, r5}; #define UNDOARGS_7 ldmfd sp!, {r4, r5, r6}; -#else /* not __ASSEMBLER__ */ -/* Define a macro which expands into the inline wrapper code for a system - call. */ -#undef INLINE_SYSCALL -#define INLINE_SYSCALL(name, nr, args...) \ - ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \ - if (unlikely (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ))) \ - { \ - __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \ - _inline_sys_result = (unsigned int) -1; \ - } \ - (int) _inline_sys_result; }) - -#undef INTERNAL_SYSCALL_DECL -#define INTERNAL_SYSCALL_DECL(err) do { } while (0) - -#undef INTERNAL_SYSCALL_RAW -#if defined(__thumb__) -/* Hide the use of r7 from the compiler, this would be a lot - * easier but for the fact that the syscalls can exceed 255. - * For the moment the LOAD_ARG_7 is sacrificed. - * We can't use push/pop inside the asm because that breaks - * unwinding (ie. thread cancellation). - */ -#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \ - ({ unsigned int _internal_sys_result; \ - { \ - int _sys_buf[2]; \ - register int __a1 __asm__ ("a1"); \ - register int *_v3 __asm__ ("v3") = _sys_buf; \ - LOAD_ARGS_##nr (args) \ - *_v3 = (int) (name); \ - __asm__ __volatile__ ("str r7, [v3, #4]\n" \ - "\tldr r7, [v3]\n" \ - "\tswi 0 @ syscall " #name "\n" \ - "\tldr r7, [v3, #4]" \ - : "=r" (__a1) \ - : "r" (_v3) ASM_ARGS_##nr \ - : "memory"); \ - _internal_sys_result = __a1; \ - } \ - (int) _internal_sys_result; }) -#elif defined(__ARM_EABI__) -#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \ - ({unsigned int _internal_sys_result; \ - { \ - register int __a1 __asm__ ("r0"), _nr __asm__ ("r7"); \ - LOAD_ARGS_##nr (args) \ - _nr = name; \ - __asm__ __volatile__ ("swi 0x0 @ syscall " #name \ - : "=r" (__a1) \ - : "r" (_nr) ASM_ARGS_##nr \ - : "memory"); \ - _internal_sys_result = __a1; \ - } \ - (int) _internal_sys_result; }) -#else /* !defined(__ARM_EABI__) */ -#define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \ - ({ unsigned int _internal_sys_result; \ - { \ - register int __a1 __asm__ ("a1"); \ - LOAD_ARGS_##nr (args) \ - __asm__ __volatile__ ("swi %1 @ syscall " #name \ - : "=r" (__a1) \ - : "i" (name) ASM_ARGS_##nr \ - : "memory"); \ - _internal_sys_result = __a1; \ - } \ - (int) _internal_sys_result; }) -#endif - -#undef INTERNAL_SYSCALL -#define INTERNAL_SYSCALL(name, err, nr, args...) \ - INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args) - -#undef INTERNAL_SYSCALL_ARM -#define INTERNAL_SYSCALL_ARM(name, err, nr, args...) \ - INTERNAL_SYSCALL_RAW(__ARM_NR_##name, err, nr, args) - -#undef INTERNAL_SYSCALL_ERROR_P -#define INTERNAL_SYSCALL_ERROR_P(val, err) \ - ((unsigned int) (val) >= 0xfffff001u) - -#undef INTERNAL_SYSCALL_ERRNO -#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val)) - -#if defined(__ARM_EABI__) -#undef INTERNAL_SYSCALL_NCS -#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \ - INTERNAL_SYSCALL_RAW(number, err, nr, args) -#else -/* We can't implement non-constant syscalls directly since the syscall - number is normally encoded in the instruction. So use SYS_syscall. */ -#undef INTERNAL_SYSCALL_NCS -#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \ - INTERNAL_SYSCALL_NCS_##nr (number, err, args) - -#define INTERNAL_SYSCALL_NCS_0(number, err, args...) \ - INTERNAL_SYSCALL (syscall, err, 1, number, args) -#define INTERNAL_SYSCALL_NCS_1(number, err, args...) \ - INTERNAL_SYSCALL (syscall, err, 2, number, args) -#define INTERNAL_SYSCALL_NCS_2(number, err, args...) \ - INTERNAL_SYSCALL (syscall, err, 3, number, args) -#define INTERNAL_SYSCALL_NCS_3(number, err, args...) \ - INTERNAL_SYSCALL (syscall, err, 4, number, args) -#define INTERNAL_SYSCALL_NCS_4(number, err, args...) \ - INTERNAL_SYSCALL (syscall, err, 5, number, args) -#define INTERNAL_SYSCALL_NCS_5(number, err, args...) \ - INTERNAL_SYSCALL (syscall, err, 6, number, args) -#endif - #endif /* __ASSEMBLER__ */ /* Pointer mangling is not yet supported for ARM. */ |