285 lines
9.1 KiB
Diff
285 lines
9.1 KiB
Diff
commit e5cde2eb0ed7df9416fdd6070af07c8448c72a30
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Author: Steve Ellcey <sellcey@mips.com>
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Date: Wed Feb 12 11:01:35 2014 -0800
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mips: Remove duplicate macro definitions
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The INLINE_SYSCALL, INTERNAL_SYSCALL*, and internal_syscall* macros
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are defined for MIPS in both libc/sysdeps/linux/mips/sysdep.h and
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libc/sysdeps/linux/mips/bits/syscalls.h. The macros are the same
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in both cases except that syscalls.h defines internal_syscalls[567]
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the same for N32 and N64 ABIs and has a different definition for O32.
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I believe that is correct. The sysdep.h header uses the O32 versions
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for N32 and has different definitions for N64. I think that is wrong
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and that N32 and N64 should share the same definition (modulo the
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type 'long' vs. 'long long' for the arguments. This setup (from
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sysdep.h) now agrees with what glibc has.
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I am not positive about which header (sysdep.h vs syscalls.h) is
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really the right one to have these definitions in but using sysdep.h
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seems to work for all my builds.
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Signed-off-by: Steve Ellcey <sellcey@mips.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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--- a/libc/sysdeps/linux/mips/sysdep.h
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+++ b/libc/sysdeps/linux/mips/sysdep.h
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@@ -133,258 +133,6 @@ L(syse1):
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#else /* ! __ASSEMBLER__ */
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-/* Define a macro which expands into the inline wrapper code for a system
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- call. */
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-#undef INLINE_SYSCALL
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-#define INLINE_SYSCALL(name, nr, args...) \
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- ({ INTERNAL_SYSCALL_DECL(err); \
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- long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
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- if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
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- { \
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- __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
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- result_var = -1L; \
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- } \
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- result_var; })
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-
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-#undef INTERNAL_SYSCALL_DECL
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-#define INTERNAL_SYSCALL_DECL(err) long err
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-
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-#undef INTERNAL_SYSCALL_ERROR_P
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-#define INTERNAL_SYSCALL_ERROR_P(val, err) ((long) (err))
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-
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-#undef INTERNAL_SYSCALL_ERRNO
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-#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
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-
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-#undef INTERNAL_SYSCALL
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-#define INTERNAL_SYSCALL(name, err, nr, args...) \
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- internal_syscall##nr (, "li\t$2, %2\t\t\t# " #name "\n\t", \
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- "i" (SYS_ify (name)), err, args)
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-
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-#undef INTERNAL_SYSCALL_NCS
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-#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
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- internal_syscall##nr (= number, , "r" (__v0), err, args)
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-#undef internal_syscall0
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-#define internal_syscall0(ncs_init, cs_init, input, err, dummy...) \
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-({ \
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- long _sys_result; \
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- \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a3 __asm__("$7"); \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- ".set reorder" \
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- : "=r" (__v0), "=r" (__a3) \
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- : input \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef internal_syscall1
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-#define internal_syscall1(ncs_init, cs_init, input, err, arg1) \
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-({ \
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- long _sys_result; \
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- \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a3 __asm__("$7"); \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- ".set reorder" \
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- : "=r" (__v0), "=r" (__a3) \
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- : input, "r" (__a0) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef internal_syscall2
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-#define internal_syscall2(ncs_init, cs_init, input, err, arg1, arg2) \
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-({ \
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- long _sys_result; \
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- \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a1 __asm__("$5") = (long) arg2; \
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- register long __a3 __asm__("$7"); \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- ".set\treorder" \
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- : "=r" (__v0), "=r" (__a3) \
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- : input, "r" (__a0), "r" (__a1) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef internal_syscall3
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-#define internal_syscall3(ncs_init, cs_init, input, err, arg1, arg2, arg3)\
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-({ \
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- long _sys_result; \
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- \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a1 __asm__("$5") = (long) arg2; \
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- register long __a2 __asm__("$6") = (long) arg3; \
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- register long __a3 __asm__("$7"); \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- ".set\treorder" \
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- : "=r" (__v0), "=r" (__a3) \
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- : input, "r" (__a0), "r" (__a1), "r" (__a2) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef internal_syscall4
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-#define internal_syscall4(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4)\
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-({ \
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- long _sys_result; \
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- \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a1 __asm__("$5") = (long) arg2; \
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- register long __a2 __asm__("$6") = (long) arg3; \
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- register long __a3 __asm__("$7") = (long) arg4; \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- ".set\treorder" \
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- : "=r" (__v0), "+r" (__a3) \
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- : input, "r" (__a0), "r" (__a1), "r" (__a2) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-/* We need to use a frame pointer for the functions in which we
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- adjust $sp around the syscall, or debug information and unwind
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- information will be $sp relative and thus wrong during the syscall. As
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- of GCC 3.4.3, this is sufficient. */
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-#define FORCE_FRAME_POINTER alloca (4)
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-
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-#undef internal_syscall5
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-#define internal_syscall5(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5)\
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-({ \
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- long _sys_result; \
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- \
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- FORCE_FRAME_POINTER; \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a1 __asm__("$5") = (long) arg2; \
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- register long __a2 __asm__("$6") = (long) arg3; \
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- register long __a3 __asm__("$7") = (long) arg4; \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- "subu\t$29, 32\n\t" \
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- "sw\t%6, 16($29)\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- "addiu\t$29, 32\n\t" \
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- ".set\treorder" \
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- : "=r" (__v0), "+r" (__a3) \
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- : input, "r" (__a0), "r" (__a1), "r" (__a2), \
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- "r" ((long)arg5) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef internal_syscall6
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-#define internal_syscall6(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6)\
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-({ \
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- long _sys_result; \
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- \
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- FORCE_FRAME_POINTER; \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a1 __asm__("$5") = (long) arg2; \
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- register long __a2 __asm__("$6") = (long) arg3; \
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- register long __a3 __asm__("$7") = (long) arg4; \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- "subu\t$29, 32\n\t" \
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- "sw\t%6, 16($29)\n\t" \
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- "sw\t%7, 20($29)\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- "addiu\t$29, 32\n\t" \
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- ".set\treorder" \
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- : "=r" (__v0), "+r" (__a3) \
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- : input, "r" (__a0), "r" (__a1), "r" (__a2), \
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- "r" ((long)arg5), "r" ((long)arg6) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef internal_syscall7
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-#define internal_syscall7(ncs_init, cs_init, input, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
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-({ \
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- long _sys_result; \
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- \
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- FORCE_FRAME_POINTER; \
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- { \
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- register long __v0 __asm__("$2") ncs_init; \
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- register long __a0 __asm__("$4") = (long) arg1; \
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- register long __a1 __asm__("$5") = (long) arg2; \
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- register long __a2 __asm__("$6") = (long) arg3; \
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- register long __a3 __asm__("$7") = (long) arg4; \
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- __asm__ __volatile__ ( \
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- ".set\tnoreorder\n\t" \
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- "subu\t$29, 32\n\t" \
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- "sw\t%6, 16($29)\n\t" \
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- "sw\t%7, 20($29)\n\t" \
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- "sw\t%8, 24($29)\n\t" \
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- cs_init \
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- "syscall\n\t" \
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- "addiu\t$29, 32\n\t" \
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- ".set\treorder" \
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- : "=r" (__v0), "+r" (__a3) \
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- : input, "r" (__a0), "r" (__a1), "r" (__a2), \
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- "r" ((long)arg5), "r" ((long)arg6), "r" ((long)arg7) \
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- : __SYSCALL_CLOBBERS); \
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- err = __a3; \
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- _sys_result = __v0; \
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- } \
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- _sys_result; \
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-})
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-
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-#undef __SYSCALL_CLOBBERS
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-#define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \
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- "$14", "$15", "$24", "$25", "memory"
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-
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/* Pointer mangling is not yet supported for MIPS. */
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#define PTR_MANGLE(var) (void) (var)
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#define PTR_DEMANGLE(var) (void) (var)
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