diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/sysdep.h | 136 |
2 files changed, 103 insertions, 39 deletions
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c b/sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c index 906b5c2281..f79142283f 100644 --- a/sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c +++ b/sysdeps/unix/sysv/linux/wordsize-64/posix_fallocate.c @@ -38,7 +38,13 @@ posix_fallocate (int fd, __off_t offset, __off_t len) # endif { INTERNAL_SYSCALL_DECL (err); +# ifdef INTERNAL_SYSCALL_TYPES + int res = INTERNAL_SYSCALL_TYPES (fallocate, err, 4, int, fd, + int, 0, off_t, offset, + off_t, len); +# else int res = INTERNAL_SYSCALL (fallocate, err, 4, fd, 0, offset, len); +# endif if (! INTERNAL_SYSCALL_ERROR_P (res, err)) return 0; diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h index 396345e8b7..cde8652936 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h @@ -203,6 +203,20 @@ } \ (long int) resultvar; }) +/* Define a macro with explicit types for arguments, which expands inline + into the wrapper code for a system call. It should be used when size + of any argument > size of long int. */ +# undef INLINE_SYSCALL_TYPES +# define INLINE_SYSCALL_TYPES(name, nr, args...) \ + ({ \ + unsigned long int resultvar = INTERNAL_SYSCALL_TYPES (name, , nr, args); \ + if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar, ), 0)) \ + { \ + __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, )); \ + resultvar = (unsigned long int) -1; \ + } \ + (long int) resultvar; }) + # undef INTERNAL_SYSCALL_DECL # define INTERNAL_SYSCALL_DECL(err) do { } while (0) @@ -220,6 +234,20 @@ # define INTERNAL_SYSCALL(name, err, nr, args...) \ INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args) +# define INTERNAL_SYSCALL_NCS_TYPES(name, err, nr, args...) \ + ({ \ + unsigned long int resultvar; \ + LOAD_ARGS_TYPES_##nr (args) \ + LOAD_REGS_TYPES_##nr (args) \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (name) ASM_ARGS_##nr : "memory", "cc", "r11", "cx"); \ + (long int) resultvar; }) +# undef INTERNAL_SYSCALL_TYPES +# define INTERNAL_SYSCALL_TYPES(name, err, nr, args...) \ + INTERNAL_SYSCALL_NCS_TYPES (__NR_##name, err, nr, ##args) + # undef INTERNAL_SYSCALL_ERROR_P # define INTERNAL_SYSCALL_ERROR_P(val, err) \ ((unsigned long int) (long int) (val) >= -4095L) @@ -286,53 +314,83 @@ # define LOAD_REGS_0 # define ASM_ARGS_0 -# define LOAD_ARGS_1(a1) \ - long int __arg1 = (long int) (a1); \ +# define LOAD_ARGS_TYPES_1(t1, a1) \ + t1 __arg1 = (t1) (a1); \ LOAD_ARGS_0 () -# define LOAD_REGS_1 \ - register long int _a1 asm ("rdi") = __arg1; \ +# define LOAD_REGS_TYPES_1(t1, a1) \ + register t1 _a1 asm ("rdi") = __arg1; \ LOAD_REGS_0 # define ASM_ARGS_1 ASM_ARGS_0, "r" (_a1) - -# define LOAD_ARGS_2(a1, a2) \ - long int __arg2 = (long int) (a2); \ - LOAD_ARGS_1 (a1) -# define LOAD_REGS_2 \ - register long int _a2 asm ("rsi") = __arg2; \ - LOAD_REGS_1 +# define LOAD_ARGS_1(a1) \ + LOAD_ARGS_TYPES_1 (long int, a1) +# define LOAD_REGS_1 \ + LOAD_REGS_TYPES_1 (long int, a1) + +# define LOAD_ARGS_TYPES_2(t1, a1, t2, a2) \ + t2 __arg2 = (t2) (a2); \ + LOAD_ARGS_TYPES_1 (t1, a1) +# define LOAD_REGS_TYPES_2(t1, a1, t2, a2) \ + register t2 _a2 asm ("rsi") = __arg2; \ + LOAD_REGS_TYPES_1(t1, a1) # define ASM_ARGS_2 ASM_ARGS_1, "r" (_a2) - -# define LOAD_ARGS_3(a1, a2, a3) \ - long int __arg3 = (long int) (a3); \ - LOAD_ARGS_2 (a1, a2) -# define LOAD_REGS_3 \ - register long int _a3 asm ("rdx") = __arg3; \ - LOAD_REGS_2 +# define LOAD_ARGS_2(a1, a2) \ + LOAD_ARGS_TYPES_2 (long int, a1, long int, a2) +# define LOAD_REGS_2 \ + LOAD_REGS_TYPES_2 (long int, a1, long int, a2) + +# define LOAD_ARGS_TYPES_3(t1, a1, t2, a2, t3, a3) \ + t3 __arg3 = (t3) (a3); \ + LOAD_ARGS_TYPES_2 (t1, a1, t2, a2) +# define LOAD_REGS_TYPES_3(t1, a1, t2, a2, t3, a3) \ + register t3 _a3 asm ("rdx") = __arg3; \ + LOAD_REGS_TYPES_2(t1, a1, t2, a2) # define ASM_ARGS_3 ASM_ARGS_2, "r" (_a3) - -# define LOAD_ARGS_4(a1, a2, a3, a4) \ - long int __arg4 = (long int) (a4); \ - LOAD_ARGS_3 (a1, a2, a3) -# define LOAD_REGS_4 \ - register long int _a4 asm ("r10") = __arg4; \ - LOAD_REGS_3 +# define LOAD_ARGS_3(a1, a2, a3) \ + LOAD_ARGS_TYPES_3 (long int, a1, long int, a2, long int, a3) +# define LOAD_REGS_3 \ + LOAD_REGS_TYPES_3 (long int, a1, long int, a2, long int, a3) + +# define LOAD_ARGS_TYPES_4(t1, a1, t2, a2, t3, a3, t4, a4) \ + t4 __arg4 = (t4) (a4); \ + LOAD_ARGS_TYPES_3 (t1, a1, t2, a2, t3, a3) +# define LOAD_REGS_TYPES_4(t1, a1, t2, a2, t3, a3, t4, a4) \ + register t4 _a4 asm ("r10") = __arg4; \ + LOAD_REGS_TYPES_3(t1, a2, t2, a2, t3, a3) # define ASM_ARGS_4 ASM_ARGS_3, "r" (_a4) - -# define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ - long int __arg5 = (long int) (a5); \ - LOAD_ARGS_4 (a1, a2, a3, a4) -# define LOAD_REGS_5 \ - register long int _a5 asm ("r8") = __arg5; \ - LOAD_REGS_4 +# define LOAD_ARGS_4(a1, a2, a3, a4) \ + LOAD_ARGS_TYPES_4 (long int, a1, long int, a2, long int, a3, \ + long int, a4) +# define LOAD_REGS_4 \ + LOAD_REGS_TYPES_4 (long int, a1, long int, a2, long int, a3, \ + long int, a4) + +# define LOAD_ARGS_TYPES_5(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ + t5 __arg5 = (t5) (a5); \ + LOAD_ARGS_TYPES_4 (t1, a1, t2, a2, t3, a3, t4, a4) +# define LOAD_REGS_TYPES_5(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ + register t5 _a5 asm ("r8") = __arg5; \ + LOAD_REGS_TYPES_4 (t1, a1, t2, a2, t3, a3, t4, a4) # define ASM_ARGS_5 ASM_ARGS_4, "r" (_a5) - -# define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ - long int __arg6 = (long int) (a6); \ - LOAD_ARGS_5 (a1, a2, a3, a4, a5) -# define LOAD_REGS_6 \ - register long int _a6 asm ("r9") = __arg6; \ - LOAD_REGS_5 +# define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + LOAD_ARGS_TYPES_5 (long int, a1, long int, a2, long int, a3, \ + long int, a4, long int, a5) +# define LOAD_REGS_5 \ + LOAD_REGS_TYPES_5 (long int, a1, long int, a2, long int, a3, \ + long int, a4, long int, a5) + +# define LOAD_ARGS_TYPES_6(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ + t6 __arg6 = (t6) (a6); \ + LOAD_ARGS_TYPES_5 (t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) +# define LOAD_REGS_TYPES_6(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ + register t6 _a6 asm ("r9") = __arg6; \ + LOAD_REGS_TYPES_5 (t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) # define ASM_ARGS_6 ASM_ARGS_5, "r" (_a6) +# define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + LOAD_ARGS_TYPES_6 (long int, a1, long int, a2, long int, a3, \ + long int, a4, long int, a5, long int, a6) +# define LOAD_REGS_6 \ + LOAD_REGS_TYPES_6 (long int, a1, long int, a2, long int, a3, \ + long int, a4, long int, a5, long int, a6) #endif /* __ASSEMBLER__ */ |