diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/mips64/syscall.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips64/syscall.S | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/syscall.S b/sysdeps/unix/sysv/linux/mips/mips64/syscall.S index ea5bf491d6..3c6aaac810 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/syscall.S +++ b/sysdeps/unix/sysv/linux/mips/mips64/syscall.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2002, 2003, 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 @@ -20,17 +20,20 @@ #include <sys/asm.h> -/* Please consult the file sysdeps/unix/sysv/linux/x86-64/sysdep.h for - more information about the value -4095 used below. */ +/* Usage: + long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5, arg6, arg7) -/* Usage: long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5) - We need to do some arg shifting, the syscall_number will be in - rax. */ + We need to do some arg shifting, syscall_number will be in v0. */ .text -ENTRY (syscall) - move v0, a0 /* Syscall number -> v0 */ +NESTED (syscall, SZREG, ra) + .mask 0x00010000, -SZREG + .fmask 0x00000000, 0 + PTR_ADDIU sp, -SZREG + REG_S s0, (sp) + + move s0, a0 move a0, a1 /* shift arg1 - arg7. */ move a1, a2 move a2, a3 @@ -39,15 +42,19 @@ ENTRY (syscall) move a5, a6 move a6, a7 + move v0, s0 /* Syscall number -> v0 */ syscall /* Do the system call. */ + + REG_L s0, (sp) + PTR_ADDIU sp, SZREG bne a3, zero, L(error) ret L(error): - .cpsetup t9, a0, syscall - PTR_LA t9,__syscall_error - .cprestore + SETUP_GP64 (a0, syscall) + PTR_LA t9, __syscall_error + RESTORE_GP64 jr t9 -PSEUDO_END (syscall) +END (syscall) |