diff options
Diffstat (limited to 'sysdeps/unix/mips')
-rw-r--r-- | sysdeps/unix/mips/brk.S | 44 | ||||
-rw-r--r-- | sysdeps/unix/mips/sysdep.S | 25 | ||||
-rw-r--r-- | sysdeps/unix/mips/sysdep.h | 26 | ||||
-rw-r--r-- | sysdeps/unix/mips/wait.S | 6 |
4 files changed, 59 insertions, 42 deletions
diff --git a/sysdeps/unix/mips/brk.S b/sysdeps/unix/mips/brk.S index 197672669b..e38f735b92 100644 --- a/sysdeps/unix/mips/brk.S +++ b/sysdeps/unix/mips/brk.S @@ -24,46 +24,24 @@ #endif #ifndef HAVE_GNU_LD -#define __end end +#define _end end #endif -.data -.sdata + .data ENTRY(__curbrk) - .word __end + .word 0 .end __curbrk -.text -.set noreorder -.set noat -ENTRY(__brk) - /* Minimum is one page. */ - lui v0, 4096 - lw v0, __end - nop - - /* If they ask for less than a page, givvem the whole - thing anyway. */ - sltu AT, a0, v0 - beq AT, zero, down1 - nop - move a0, v0 -down1: - li v0, SYS_brk - syscall - bne a3, zero, error - - /* Update __curbrk and exit cleanly. */ - lui AT, 4096 + .text +SYSCALL__(brk, 1) + .set reorder + /* Handle the query case. */ + bnez a0, 1f + move a0,v0 +1: /* Update __curbrk and exit cleanly. */ sw a0, __curbrk - j ra move v0, zero - - /* What a horrible way to die. */ -error: j syscall_error - nop - nop - nop + jr ra .end __brk weak_alias (__brk, brk) diff --git a/sysdeps/unix/mips/sysdep.S b/sysdeps/unix/mips/sysdep.S index 0cfc302770..ac8335fe5b 100644 --- a/sysdeps/unix/mips/sysdep.S +++ b/sysdeps/unix/mips/sysdep.S @@ -21,10 +21,23 @@ #define _ERRNO_H #include <bits/errno.h> -/* .globl errno */ -.set noreorder + .comm errno, 4 +#ifdef __ELF__ + .type errno, @object +#endif + + .set noreorder -ENTRY(syscall_error) +ENTRY(__syscall_error) +#ifdef __PIC__ + .set noat + move $1, $31 + bltzal $0, 0f + nop +0: .cpload $31 + move $31, $1 + .set at +#endif #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN /* We translate the system's EWOULDBLOCK error into EAGAIN. The GNU C library always defines EWOULDBLOCK==EAGAIN. @@ -40,4 +53,8 @@ skip: /* And just kick back a -1. */ j ra li v0, -1 - .end syscall_error + END(__syscall_error) + +/* We provide this alias for compatilility with other Unices + like IRIX 5 */ +weak_alias (__syscall_error, syscall_error) diff --git a/sysdeps/unix/mips/sysdep.h b/sysdeps/unix/mips/sysdep.h index 2f148d0938..cbafbdcd9a 100644 --- a/sysdeps/unix/mips/sysdep.h +++ b/sysdeps/unix/mips/sysdep.h @@ -32,19 +32,41 @@ /* Note that while it's better structurally, going back to call syscall_error can make things confusing if you're debugging---it looks like it's jumping backwards into the previous fn. */ +#ifdef __PIC__ + #define PSEUDO(name, syscall_name, args) \ + .align 2; \ + 99: la t9,syscall_error; \ + jr t9; \ + ENTRY(name) \ + .set noreorder; \ + .cpload t9; \ + li v0, SYS_##syscall_name; \ + syscall; \ + .set reorder; \ + bne a3, zero, 99b; \ +syse1: +#else #define PSEUDO(name, syscall_name, args) \ .set noreorder; \ .align 2; \ 99: j syscall_error; \ - nop; \ ENTRY(name) \ + .set noreorder; \ li v0, SYS_##syscall_name; \ syscall; \ + .set reorder; \ bne a3, zero, 99b; \ - nop; \ syse1: +#endif + +#undef PSEUDO_END +#define PSEUDO_END(sym) .end sym #define ret j ra ; nop + +#undef END +#define END(sym) .end sym + #define r0 v0 #define r1 v1 /* The mips move insn is d,s. */ diff --git a/sysdeps/unix/mips/wait.S b/sysdeps/unix/mips/wait.S index a544156c4e..9ea55bc7d0 100644 --- a/sysdeps/unix/mips/wait.S +++ b/sysdeps/unix/mips/wait.S @@ -28,14 +28,14 @@ ENTRY(__wait) li v0, SYS_wait syscall - beq a3, zero, noerror + beqz a3, noerror nop - j syscall_error + j __syscall_error nop noerror: /* If the arg is not NULL, store v1 there. */ - beq a0, zero, noarg + beqz a0, noarg nop sw v1, 0(a0) nop |