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-rw-r--r--sysdeps/unix/mips/brk.S67
-rw-r--r--sysdeps/unix/mips/fork.S29
-rw-r--r--sysdeps/unix/mips/pipe.S31
-rw-r--r--sysdeps/unix/mips/sigreturn.S29
-rw-r--r--sysdeps/unix/mips/sysdep.S41
-rw-r--r--sysdeps/unix/mips/sysdep.h52
-rw-r--r--sysdeps/unix/mips/wait.S44
7 files changed, 293 insertions, 0 deletions
diff --git a/sysdeps/unix/mips/brk.S b/sysdeps/unix/mips/brk.S
new file mode 100644
index 0000000000..1754c0c4de
--- /dev/null
+++ b/sysdeps/unix/mips/brk.S
@@ -0,0 +1,67 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+
+#ifndef SYS_brk
+#define SYS_brk 17
+#endif
+
+#ifndef HAVE_GNU_LD
+#define __end end
+#endif
+
+.data
+.sdata
+ENTRY(__curbrk)
+ .word __end
+
+.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
+ sw a0, __curbrk
+ j ra
+ move v0, zero
+
+ /* What a horrible way to die. */
+error: j syscall_error
+ nop
+ nop
+ nop
+
+weak_alias (__brk, brk)
diff --git a/sysdeps/unix/mips/fork.S b/sysdeps/unix/mips/fork.S
new file mode 100644
index 0000000000..2347bf4d50
--- /dev/null
+++ b/sysdeps/unix/mips/fork.S
@@ -0,0 +1,29 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+
+SYSCALL__ (fork, 0)
+ beq v1, zero, parent /* Branch if parent. */
+ nop
+ /* We are the child. Return zero. */
+ move v0, zero
+parent:
+ ret
+
+weak_alias (__fork, fork)
diff --git a/sysdeps/unix/mips/pipe.S b/sysdeps/unix/mips/pipe.S
new file mode 100644
index 0000000000..f8ce56b118
--- /dev/null
+++ b/sysdeps/unix/mips/pipe.S
@@ -0,0 +1,31 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+
+SYSCALL__ (pipe, 1)
+ /* Plop in the two descriptors. */
+ sw v0, 0(a0)
+ sw v1, 4(a0)
+
+ /* Go out with a clean status. */
+ j ra
+ move v0, zero
+ nop
+
+weak_alias (__pipe, pipe)
diff --git a/sysdeps/unix/mips/sigreturn.S b/sysdeps/unix/mips/sigreturn.S
new file mode 100644
index 0000000000..1e76bf5f99
--- /dev/null
+++ b/sysdeps/unix/mips/sigreturn.S
@@ -0,0 +1,29 @@
+/* Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+
+#ifndef SYS_sigreturn
+#define SYS_sigreturn 103
+#endif
+
+ENTRY(__sigreturn)
+ li v0, SYS_sigreturn
+ syscall
+
+weak_alias (__sigreturn, sigreturn)
diff --git a/sysdeps/unix/mips/sysdep.S b/sysdeps/unix/mips/sysdep.S
new file mode 100644
index 0000000000..21bdf234f9
--- /dev/null
+++ b/sysdeps/unix/mips/sysdep.S
@@ -0,0 +1,41 @@
+/* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+#define _ERRNO_H
+#include <errnos.h>
+
+/* .globl errno */
+.set noreorder
+
+ENTRY(syscall_error)
+#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
+ /* We translate the system's EWOULDBLOCK error into EAGAIN.
+ The GNU C library always defines EWOULDBLOCK==EAGAIN.
+ EWOULDBLOCK_sys is the original number. */
+ bne v0, EWOULDBLOCK_sys, skip
+ nop
+ li v0, EAGAIN
+skip:
+#endif
+ /* Store it in errno... */
+ sw v0, errno
+
+ /* And just kick back a -1. */
+ j ra
+ li v0, -1
diff --git a/sysdeps/unix/mips/sysdep.h b/sysdeps/unix/mips/sysdep.h
new file mode 100644
index 0000000000..c09c5af7d2
--- /dev/null
+++ b/sysdeps/unix/mips/sysdep.h
@@ -0,0 +1,52 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdeps/unix/sysdep.h>
+
+#ifdef ASSEMBLER
+
+#include <regdef.h>
+
+#define ENTRY(name) \
+ .globl name; \
+ .align 2; \
+ .ent name,0; \
+ name##:
+
+/* 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. */
+#define PSEUDO(name, syscall_name, args) \
+ .set noreorder; \
+ .align 2; \
+ 99: j syscall_error; \
+ nop; \
+ ENTRY(name) \
+ li v0, SYS_##syscall_name; \
+ syscall; \
+ bne a3, zero, 99b; \
+ nop; \
+syse1:
+
+#define ret j ra ; nop
+#define r0 v0
+#define r1 v1
+/* The mips move insn is d,s. */
+#define MOVE(x,y) move y , x
+
+#endif
diff --git a/sysdeps/unix/mips/wait.S b/sysdeps/unix/mips/wait.S
new file mode 100644
index 0000000000..63bce849d4
--- /dev/null
+++ b/sysdeps/unix/mips/wait.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <sysdep.h>
+
+.set noreorder
+
+ENTRY(__wait)
+ /* Prep it for wait. */
+ move a1, zero
+ move a2, zero
+
+ li v0, SYS_wait
+ syscall
+ beq a3, zero, noerror
+ nop
+ j syscall_error
+ nop
+
+noerror:
+ /* If the arg is not NULL, store v1 there. */
+ beq a0, zero, noarg
+ nop
+ sw v1, 0(a0)
+ nop
+noarg:
+ ret
+
+weak_alias (__wait, wait)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 18:24:34 +0000