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Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/mips32/sysdep.h')
-rw-r--r--sysdeps/unix/sysv/linux/mips/mips32/sysdep.h295
1 files changed, 152 insertions, 143 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
index 5eaf7a276b..3da2412259 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
+++ b/sysdeps/unix/sysv/linux/mips/mips32/sysdep.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -48,12 +48,12 @@
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ INTERNAL_SYSCALL_DECL(err); \
- long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
- if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
- { \
- __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
- result_var = -1L; \
- } \
+ long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
+ if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
+ result_var = -1L; \
+ } \
result_var; })
#undef INTERNAL_SYSCALL_DECL
@@ -66,209 +66,218 @@
#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
#undef INTERNAL_SYSCALL
-#define INTERNAL_SYSCALL(name, err, nr, args...) internal_syscall##nr(name, err, args)
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+ internal_syscall##nr (, "li\t$2, %2\t\t\t# " #name "\n\t", \
+ "i" (SYS_ify (name)), err, args)
-#define internal_syscall0(name, err, dummy...) \
-({ \
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ internal_syscall##nr (= number, , "r" (__v0), err, args)
+
+#define internal_syscall0(ncs_init, cs_init, input, err, dummy...) \
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %2\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set reorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall1(name, err, arg1) \
-({ \
+#define internal_syscall1(ncs_init, cs_init, input, err, arg1) \
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %3\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set reorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "r" (__a0), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall2(name, err, arg1, arg2) \
-({ \
+#define internal_syscall2(ncs_init, cs_init, input, err, arg1, arg2) \
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %4\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0), "r" (__a1) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall3(name, err, arg1, arg2, arg3) \
-({ \
+#define internal_syscall3(ncs_init, cs_init, input, err, arg1, arg2, arg3)\
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7"); \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "=r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall4(name, err, arg1, arg2, arg3, arg4) \
-({ \
+#define internal_syscall4(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4)\
+({ \
long _sys_result; \
\
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \
-({ \
+/* We need to use a frame pointer for the functions in which we
+ adjust $sp around the syscall, or debug information and unwind
+ information will be $sp relative and thus wrong during the syscall. As
+ of GCC 3.4.3, this is sufficient. */
+#define FORCE_FRAME_POINTER alloca (4)
+
+#define internal_syscall5(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5)\
+({ \
long _sys_result; \
\
+ FORCE_FRAME_POINTER; \
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "lw\t$2, %6\n\t" \
- "subu\t$29, 32\n\t" \
- "sw\t$2, 16($29)\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- "addiu\t$29, 32\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
- "m" ((long)arg5) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t%6, 16($29)\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), \
+ "r" ((long)arg5) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6)\
-({ \
+#define internal_syscall6(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6)\
+({ \
long _sys_result; \
\
+ FORCE_FRAME_POINTER; \
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "lw\t$2, %6\n\t" \
- "lw\t$8, %7\n\t" \
- "subu\t$29, 32\n\t" \
- "sw\t$2, 16($29)\n\t" \
- "sw\t$8, 20($29)\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- "addiu\t$29, 32\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
- "m" ((long)arg5), "m" ((long)arg6) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t%6, 16($29)\n\t" \
+ "sw\t%7, 20($29)\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), \
+ "r" ((long)arg5), "r" ((long)arg6) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
_sys_result; \
})
-#define internal_syscall7(name, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
-({ \
+#define internal_syscall7(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
+({ \
long _sys_result; \
\
+ FORCE_FRAME_POINTER; \
{ \
- register long __v0 asm("$2"); \
- register long __a0 asm("$4") = (long) arg1; \
- register long __a1 asm("$5") = (long) arg2; \
- register long __a2 asm("$6") = (long) arg3; \
- register long __a3 asm("$7") = (long) arg4; \
- __asm__ volatile ( \
- ".set\tnoreorder\n\t" \
- "lw\t$2, %6\n\t" \
- "lw\t$8, %7\n\t" \
- "lw\t$9, %8\n\t" \
- "subu\t$29, 32\n\t" \
- "sw\t$2, 16($29)\n\t" \
- "sw\t$8, 20($29)\n\t" \
- "sw\t$9, 24($29)\n\t" \
- "li\t$2, %5\t\t\t# " #name "\n\t" \
- "syscall\n\t" \
- "addiu\t$29, 32\n\t" \
- ".set\treorder" \
- : "=r" (__v0), "+r" (__a3) \
- : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
- "m" ((long)arg5), "m" ((long)arg6), "m" ((long)arg7) \
- : __SYSCALL_CLOBBERS); \
+ register long __v0 asm("$2") ncs_init; \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t%6, 16($29)\n\t" \
+ "sw\t%7, 20($29)\n\t" \
+ "sw\t%8, 24($29)\n\t" \
+ cs_init \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), \
+ "r" ((long)arg5), "r" ((long)arg6), "r" ((long)arg7) \
+ : __SYSCALL_CLOBBERS); \
err = __a3; \
_sys_result = __v0; \
} \
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