#define __SYSCALL_LL_E(x) (x)
#define __SYSCALL_LL_O(x) (x)
-__attribute__((visibility("hidden")))
-long (__syscall)(long, ...);
-
#define SYSCALL_RLIM_INFINITY (-1UL/2)
-#include <sys/stat.h>
-struct kernel_stat {
- unsigned int st_dev;
- unsigned int __pad1[3];
- unsigned long long st_ino;
- unsigned int st_mode;
- unsigned int st_nlink;
- int st_uid;
- int st_gid;
- unsigned int st_rdev;
- unsigned int __pad2[3];
- long long st_size;
- unsigned int st_atime_sec;
- unsigned int st_atime_nsec;
- unsigned int st_mtime_sec;
- unsigned int st_mtime_nsec;
- unsigned int st_ctime_sec;
- unsigned int st_ctime_nsec;
- unsigned int st_blksize;
- unsigned int __pad3;
- unsigned long long st_blocks;
-};
-
-static void __stat_fix(struct kernel_stat *kst, struct stat *st)
-{
- st->st_dev = kst->st_dev;
- st->st_ino = kst->st_ino;
- st->st_mode = kst->st_mode;
- st->st_nlink = kst->st_nlink;
- st->st_uid = kst->st_uid;
- st->st_gid = kst->st_gid;
- st->st_rdev = kst->st_rdev;
- st->st_size = kst->st_size;
- st->st_atim.tv_sec = kst->st_atime_sec;
- st->st_atim.tv_nsec = kst->st_atime_nsec;
- st->st_mtim.tv_sec = kst->st_mtime_sec;
- st->st_mtim.tv_nsec = kst->st_mtime_nsec;
- st->st_ctim.tv_sec = kst->st_ctime_sec;
- st->st_ctim.tv_nsec = kst->st_ctime_nsec;
- st->st_blksize = kst->st_blksize;
- st->st_blocks = kst->st_blocks;
-}
-
-#ifndef __clang__
+#define SYSCALL_CLOBBERLIST \
+ "$1", "$3", "$10", "$11", "$12", "$13", \
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory"
static inline long __syscall0(long n)
{
register long r7 __asm__("$7");
- register long r2 __asm__("$2");
+ register long r2 __asm__("$2") = n;
__asm__ __volatile__ (
- "daddu $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");
+ "syscall"
+ : "+&r"(r2), "=r"(r7)
+ :
+ : SYSCALL_CLOBBERLIST);
return r7 ? -r2 : r2;
}
{
register long r4 __asm__("$4") = a;
register long r7 __asm__("$7");
- register long r2 __asm__("$2");
+ register long r2 __asm__("$2") = n;
__asm__ __volatile__ (
- "daddu $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");
+ "syscall"
+ : "+&r"(r2), "=r"(r7)
+ : "r"(r4)
+ : SYSCALL_CLOBBERLIST);
return r7 ? -r2 : r2;
}
static inline long __syscall2(long n, long a, long b)
{
- struct kernel_stat kst;
- long ret;
- register long r4 __asm__("$4");
- register long r5 __asm__("$5");
+ register long r4 __asm__("$4") = a;
+ register long r5 __asm__("$5") = b;
register long r7 __asm__("$7");
- register long r2 __asm__("$2");
-
- r5 = b;
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- r5 = (long) &kst;
+ register long r2 __asm__("$2") = n;
- r4 = a;
__asm__ __volatile__ (
- "daddu $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;
- ret = r2;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)b);
-
- return ret;
+ "syscall"
+ : "+&r"(r2), "=r"(r7)
+ : "r"(r4), "r"(r5)
+ : SYSCALL_CLOBBERLIST);
+ return r7 ? -r2 : r2;
}
static inline long __syscall3(long n, long a, long b, long c)
{
- struct kernel_stat kst;
- long ret;
- register long r4 __asm__("$4");
- register long r5 __asm__("$5");
- register long r6 __asm__("$6");
+ 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");
+ register long r2 __asm__("$2") = n;
- r5 = b;
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- r5 = (long) &kst;
-
- r4 = a;
- r6 = c;
__asm__ __volatile__ (
- "daddu $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;
- ret = r2;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)b);
-
- return ret;
+ "syscall"
+ : "+&r"(r2), "=r"(r7)
+ : "r"(r4), "r"(r5), "r"(r6)
+ : SYSCALL_CLOBBERLIST);
+ return r7 ? -r2 : r2;
}
static inline long __syscall4(long n, long a, long b, long c, long d)
{
- struct kernel_stat kst;
- long ret;
- register long r4 __asm__("$4");
- register long r5 __asm__("$5");
- register long r6 __asm__("$6");
- register long r7 __asm__("$7");
- register long r2 __asm__("$2");
-
- r5 = b;
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- r5 = (long) &kst;
+ 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") = n;
- r4 = a;
- r6 = c;
- r7 = d;
__asm__ __volatile__ (
- "daddu $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;
- ret = r2;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)b);
-
- 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;
- long old_b = b;
- struct kernel_stat kst;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
-
- r2 = (__syscall)(n, a, b);
- if (r2 > -4096UL) return r2;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)old_b);
-
- return r2;
-}
-
-static inline long __syscall3(long n, long a, long b, long c)
-{
- long r2;
- long old_b = b;
- struct kernel_stat kst;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
-
- r2 = (__syscall)(n, a, b, c);
- if (r2 > -4096UL) return r2;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)old_b);
-
- return r2;
-}
-
-static inline long __syscall4(long n, long a, long b, long c, long d)
-{
- long r2;
- long old_b = b;
- struct kernel_stat kst;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
-
- r2 = (__syscall)(n, a, b, c, d);
- if (r2 > -4096UL) return r2;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- __stat_fix(&kst, (struct stat *)old_b);
-
- return r2;
+ "syscall"
+ : "+&r"(r2), "+r"(r7)
+ : "r"(r4), "r"(r5), "r"(r6)
+ : SYSCALL_CLOBBERLIST);
+ return r7 ? -r2 : r2;
}
-#endif
-
static inline long __syscall5(long n, long a, long b, long c, long d, long e)
{
- long r2;
- long old_b = b;
- struct kernel_stat kst;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
-
- 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(&kst, (struct stat *)old_b);
+ 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 r8 __asm__("$8") = e;
+ register long r2 __asm__("$2") = n;
- return r2;
+ __asm__ __volatile__ (
+ "syscall"
+ : "+&r"(r2), "+r"(r7)
+ : "r"(r4), "r"(r5), "r"(r6), "r"(r8)
+ : SYSCALL_CLOBBERLIST);
+ return r7 ? -r2 : r2;
}
static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
{
- long r2;
- long old_b = b;
- struct kernel_stat kst;
-
- if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat)
- b = (long) &kst;
-
- 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(&kst, (struct stat *)old_b);
+ 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 r8 __asm__("$8") = e;
+ register long r9 __asm__("$9") = f;
+ register long r2 __asm__("$2") = n;
- return r2;
+ __asm__ __volatile__ (
+ "syscall"
+ : "+&r"(r2), "+r"(r7)
+ : "r"(r4), "r"(r5), "r"(r6), "r"(r8), "r"(r9)
+ : SYSCALL_CLOBBERLIST);
+ return r7 ? -r2 : r2;
}
#define VDSO_USEFUL
projects / musl / blobdiff