From 5972c4a4113e2a4de5edf519faf15296ae1eb3ed Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 18 Apr 2016 05:19:13 +0000 Subject: add mips n32 port (ILP32 ABI for mips64) based on patch submitted by Jaydeep Patil, with minor changes. --- arch/mipsn32/syscall_arch.h | 165 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 arch/mipsn32/syscall_arch.h (limited to 'arch/mipsn32/syscall_arch.h') diff --git a/arch/mipsn32/syscall_arch.h b/arch/mipsn32/syscall_arch.h new file mode 100644 index 00000000..58d2c8bd --- /dev/null +++ b/arch/mipsn32/syscall_arch.h @@ -0,0 +1,165 @@ +#define __SYSCALL_LL_E(x) (x) +#define __SYSCALL_LL_O(x) (x) + +__attribute__((visibility("hidden"))) +long (__syscall)(long, ...); + +#define SYSCALL_RLIM_INFINITY (-1UL/2) + +#if _MIPSEL || __MIPSEL || __MIPSEL__ +#define __stat_fix(st) ((st),(void)0) +#else +#include +static inline void __stat_fix(long p) +{ + struct stat *st = (struct stat *)p; + st->st_dev >>= 32; + st->st_rdev >>= 32; +} +#endif + +#ifndef __clang__ + +static inline long __syscall0(long n) +{ + register long r7 __asm__("$7"); + register long r2 __asm__("$2"); + __asm__ __volatile__ ( + "addu $2,$0,%2 ; syscall" + : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7) + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", + "$14", "$15", "$24", "$25", "hi", "lo", "memory"); + return r7 ? -r2 : r2; +} + +static inline long __syscall1(long n, long a) +{ + register long r4 __asm__("$4") = a; + register long r7 __asm__("$7"); + register long r2 __asm__("$2"); + __asm__ __volatile__ ( + "addu $2,$0,%2 ; syscall" + : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7), + "r"(r4) + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", + "$14", "$15", "$24", "$25", "hi", "lo", "memory"); + return r7 ? -r2 : r2; +} + +static inline long __syscall2(long n, long a, long b) +{ + register long r4 __asm__("$4") = a; + register long r5 __asm__("$5") = b; + register long r7 __asm__("$7"); + register long r2 __asm__("$2"); + __asm__ __volatile__ ( + "addu $2,$0,%2 ; syscall" + : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7), + "r"(r4), "r"(r5) + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", + "$14", "$15", "$24", "$25", "hi", "lo", "memory"); + if (r7) return -r2; + long ret = r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + return ret; +} + +static inline long __syscall3(long n, long a, long b, long c) +{ + register long r4 __asm__("$4") = a; + register long r5 __asm__("$5") = b; + register long r6 __asm__("$6") = c; + register long r7 __asm__("$7"); + register long r2 __asm__("$2"); + __asm__ __volatile__ ( + "addu $2,$0,%2 ; syscall" + : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7), + "r"(r4), "r"(r5), "r"(r6) + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", + "$14", "$15", "$24", "$25", "hi", "lo", "memory"); + if (r7) return -r2; + long ret = r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + return ret; +} + +static inline long __syscall4(long n, long a, long b, long c, long d) +{ + register long r4 __asm__("$4") = a; + register long r5 __asm__("$5") = b; + register long r6 __asm__("$6") = c; + register long r7 __asm__("$7") = d; + register long r2 __asm__("$2"); + __asm__ __volatile__ ( + "addu $2,$0,%2 ; syscall" + : "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7), + "r"(r4), "r"(r5), "r"(r6) + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", + "$14", "$15", "$24", "$25", "hi", "lo", "memory"); + if (r7) return -r2; + long ret = r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + if (n == SYS_fstatat) __stat_fix(c); + return ret; +} + +#else + +static inline long __syscall0(long n) +{ + return (__syscall)(n); +} + +static inline long __syscall1(long n, long a) +{ + return (__syscall)(n, a); +} + +static inline long __syscall2(long n, long a, long b) +{ + long r2 = (__syscall)(n, a, b); + if (r2 > -4096UL) return r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + return r2; +} + +static inline long __syscall3(long n, long a, long b, long c) +{ + long r2 = (__syscall)(n, a, b, c); + if (r2 > -4096UL) return r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + return r2; +} + +static inline long __syscall4(long n, long a, long b, long c, long d) +{ + long r2 = (__syscall)(n, a, b, c, d); + if (r2 > -4096UL) return r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + if (n == SYS_fstatat) __stat_fix(c); + return r2; +} + +#endif + +static inline long __syscall5(long n, long a, long b, long c, long d, long e) +{ + long r2 = (__syscall)(n, a, b, c, d, e); + if (r2 > -4096UL) return r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + if (n == SYS_fstatat) __stat_fix(c); + return r2; +} + +static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f) +{ + long r2 = (__syscall)(n, a, b, c, d, e, f); + if (r2 > -4096UL) return r2; + if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b); + if (n == SYS_fstatat) __stat_fix(c); + return r2; +} + +#define VDSO_USEFUL +#define VDSO_CGT_SYM "__vdso_clock_gettime" +#define VDSO_CGT_VER "LINUX_2.6" -- cgit v1.2.1