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author | Rich Felker <dalias@aerifal.cx> | 2012-09-08 22:43:14 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2012-09-08 22:43:14 -0400 |
commit | 208eb584efbf995e0c5d92f76d5f4c08ae0054b4 (patch) | |
tree | 1d2613b937b371ca2fb3a1d550758ac298a4ebb7 /arch/x86_64 | |
parent | fe0260400eebb613338a720c9568c10ab4f17225 (diff) | |
download | musl-208eb584efbf995e0c5d92f76d5f4c08ae0054b4.zip musl-208eb584efbf995e0c5d92f76d5f4c08ae0054b4.tar.gz musl-208eb584efbf995e0c5d92f76d5f4c08ae0054b4.tar.bz2 |
syscall organization overhaul
now public syscall.h only exposes __NR_* and SYS_* constants and the
variadic syscall function. no macros or inline functions, no
__syscall_ret or other internal details, no 16-/32-bit legacy syscall
renaming, etc. this logic has all been moved to src/internal/syscall.h
with the arch-specific parts in arch/$(ARCH)/syscall_arch.h, and the
amount of arch-specific stuff has been reduced to a minimum.
changes still need to be reviewed/double-checked. minimal testing on
i386 and mips has already been performed.
Diffstat (limited to 'arch/x86_64')
-rw-r--r-- | arch/x86_64/bits/syscall.h | 68 | ||||
-rw-r--r-- | arch/x86_64/syscall_arch.h | 64 |
2 files changed, 64 insertions, 68 deletions
diff --git a/arch/x86_64/bits/syscall.h b/arch/x86_64/bits/syscall.h index 217515f..1ca5db2 100644 --- a/arch/x86_64/bits/syscall.h +++ b/arch/x86_64/bits/syscall.h @@ -1,71 +1,3 @@ -#define __SYSCALL_LL_E(x) (x) -#define __SYSCALL_LL_O(x) (x) - -#define __SYSCALL_SSLEN 8 - -static __inline long __syscall0(long __n) -{ - unsigned long __ret; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n) : "rcx", "r11", "memory"); - return __ret; -} - -static __inline long __syscall1(long __n, long __a1) -{ - unsigned long __ret; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1) : "rcx", "r11", "memory"); - return __ret; -} - -static __inline long __syscall2(long __n, long __a1, long __a2) -{ - unsigned long __ret; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2) - : "rcx", "r11", "memory"); - return __ret; -} - -static __inline long __syscall3(long __n, long __a1, long __a2, long __a3) -{ - unsigned long __ret; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2), - "d"(__a3) : "rcx", "r11", "memory"); - return __ret; -} - -static __inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4) -{ - unsigned long __ret; - register long __r10 __asm__("r10") = __a4; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2), - "d"(__a3), "r"(__r10): "rcx", "r11", "memory"); - return __ret; -} - -static __inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5) -{ - unsigned long __ret; - register long __r10 __asm__("r10") = __a4; - register long __r8 __asm__("r8") = __a5; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2), - "d"(__a3), "r"(__r10), "r"(__r8) : "rcx", "r11", "memory"); - return __ret; -} - -static __inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6) -{ - unsigned long __ret; - register long __r10 __asm__("r10") = __a4; - register long __r8 __asm__("r8") = __a5; - register long __r9 __asm__("r9") = __a6; - __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2), - "d"(__a3), "r"(__r10), "r"(__r8), "r"(__r9) : "rcx", "r11", "memory"); - return __ret; -} - -#define __socketcall(nm,a,b,c,d,e,f) syscall(__NR_##nm, a, b, c, d, e, f) -#define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(__NR_##nm, a, b, c, d, e, f) - #define __NR_read 0 #define __NR_write 1 #define __NR_open 2 diff --git a/arch/x86_64/syscall_arch.h b/arch/x86_64/syscall_arch.h new file mode 100644 index 0000000..1c4b48a --- /dev/null +++ b/arch/x86_64/syscall_arch.h @@ -0,0 +1,64 @@ +#define __SYSCALL_LL_E(x) (x) +#define __SYSCALL_LL_O(x) (x) + +#define __SYSCALL_SSLEN 8 + +static __inline long __syscall0(long n) +{ + unsigned long ret; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n) : "rcx", "r11", "memory"); + return ret; +} + +static __inline long __syscall1(long n, long a1) +{ + unsigned long ret; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1) : "rcx", "r11", "memory"); + return ret; +} + +static __inline long __syscall2(long n, long a1, long a2) +{ + unsigned long ret; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2) + : "rcx", "r11", "memory"); + return ret; +} + +static __inline long __syscall3(long n, long a1, long a2, long a3) +{ + unsigned long ret; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2), + "d"(a3) : "rcx", "r11", "memory"); + return ret; +} + +static __inline long __syscall4(long n, long a1, long a2, long a3, long a4) +{ + unsigned long ret; + register long r10 __asm__("r10") = a4; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2), + "d"(a3), "r"(r10): "rcx", "r11", "memory"); + return ret; +} + +static __inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5) +{ + unsigned long ret; + register long r10 __asm__("r10") = a4; + register long r8 __asm__("r8") = a5; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2), + "d"(a3), "r"(r10), "r"(r8) : "rcx", "r11", "memory"); + return ret; +} + +static __inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6) +{ + unsigned long ret; + register long r10 __asm__("r10") = a4; + register long r8 __asm__("r8") = a5; + register long r9 __asm__("r9") = a6; + __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2), + "d"(a3), "r"(r10), "r"(r8), "r"(r9) : "rcx", "r11", "memory"); + return ret; +} |