From 9da3df102148ebd3e371b00886b9a3ffb811ce25 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 15 Jan 2003 01:02:03 +0000 Subject: [PATCH] (INTERNAL_SYSCALL, INTERNAL_SYSCALL_DECL, INTERNAL_SYSCALL_ERRNO, INTERNAL_SYSCALL_ERROR_P, INLINE_SYSCALL): Define. --- sysdeps/unix/sysv/linux/mips/sysdep.h | 238 ++++++++++++++++++++++++++++++++++ 1 file changed, 238 insertions(+) diff --git a/sysdeps/unix/sysv/linux/mips/sysdep.h b/sysdeps/unix/sysv/linux/mips/sysdep.h index be88479..1fd64e5 100644 --- a/sysdeps/unix/sysv/linux/mips/sysdep.h +++ b/sysdeps/unix/sysv/linux/mips/sysdep.h @@ -33,4 +33,242 @@ # define SYS_ify(syscall_name) __NR_/**/syscall_name #endif +#ifndef __ASSEMBLER__ + +/* Define a macro which expands into the inline wrapper code for a system + call. */ +#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; \ + } \ + result_var; }) + +#undef INTERNAL_SYSCALL_DECL +#define INTERNAL_SYSCALL_DECL(err) long err + +#undef INTERNAL_SYSCALL_ERROR_P +#define INTERNAL_SYSCALL_ERROR_P(val, err) ((long) (err)) + +#undef INTERNAL_SYSCALL_ERRNO +#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_syscall0(name, 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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall1(name, 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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall2(name, 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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall3(name, 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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall4(name, 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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \ +({ \ + 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" \ + "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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6)\ +({ \ + 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" \ + "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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall7(name, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\ +({ \ + 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" \ + "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); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24", "$25" + +#endif /* __ASSEMBLER__ */ + #endif /* linux/mips/sysdep.h */ -- 2.7.4