aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/mips/clone.S
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1997-07-12 23:35:19 +0000
committerUlrich Drepper <drepper@redhat.com>1997-07-12 23:35:19 +0000
commitf21acc89c06c14160eab88246e9dbe0b17eb5f89 (patch)
tree096a11e16faed78c69e77fd79b7c8bb4dc0bd051 /sysdeps/unix/sysv/linux/mips/clone.S
parent2d7da676f38bc00f40d2b604036c0295c156529e (diff)
downloadglibc-f21acc89c06c14160eab88246e9dbe0b17eb5f89.tar
glibc-f21acc89c06c14160eab88246e9dbe0b17eb5f89.tar.gz
glibc-f21acc89c06c14160eab88246e9dbe0b17eb5f89.tar.bz2
glibc-f21acc89c06c14160eab88246e9dbe0b17eb5f89.zip
1997-07-13 01:18 Ulrich Drepper <drepper@cygnus.com> * setjmp/setjmp.h: Define _setjmp and _longjmp also if __USE_XOPEN. * sysdeps/unix/sysv/linux/bits/ipc.h: Fix comment. * sysdeps/unix/sysv/linux/bits/msq.h: Likewise. * sysdeps/unix/sysv/linux/bits/sem.h: Likewise. * sysdeps/unix/sysv/linux/bits/shm.h: Likewise. * time/Makefile (routines): Add getdate. * time/time.h: Add prototype for getdate and getdate_r. * time/getdate.c: New file. Provided by Mark Kettenis <kettenis@phys.uva.nl>. 1997-06-30 14:49 H.J. Lu <hjl@gnu.ai.mit.edu> From Ralf Baechle <ralf@informatik.uni-koblenz.de> on Sat Jun 21 18:11:21 1997: * sysdeps/unix/sysv/linux/syscalls.list (swapon): Add __swapon alias. (swapoff): New. * elf/Makefile: Add linker script support. (headers): Add bits/dlfcn.h. * elf/dl-load.c (MAP_BASE_ADDR): New. * elf/dlfcn.h: Include <bits/dlfcn.h>. * elf/elf.h: Add MIPS support. * sysdeps/generic/Dist: Add entry.h. * sysdeps/generic/entry.h: New, define the entry symbol. * elf/rtld.c (_start): Include <entry.h>. Change to ENTRY_POINT. * sysdeps/generic/dl-sysdep.c (_start): Likewise. * mips/elf/start.S (_start): Likewise. * sysdeps/mips/bsd-_setjmp.S: Fix PIC. * sysdeps/mips/bsd-setjmp.S: Likewise. * sysdeps/mips/setjmp.S: Likewise. * mips/elf/start.S: Likewise. * sysdeps/unix/mips/brk.S: Likewise. * sysdeps/unix/mips/sysdep.S: Likewise. * sysdeps/unix/mips/sysdep.h: Likewise. * sysdeps/unix/mips/wait.S: Likewise. * sysdeps/mips/dl-machine.h: Update for Linux/MIPS. * sysdeps/mips/fpu_control.h: Likewise. * sysdeps/generic/bits/dlfcn.h: New file. * sysdeps/mips/rtld-ldscript.in: New for Linux/MIPS. * sysdeps/mips/rtld-parms: Likewise. * sysdeps/mips/bits/dlfcn.h: Likewise. * sysdeps/mips/mips64/rtld-parms: Likewise. * sysdeps/mips/mipsel/rtld-parms: Likewise. * sysdeps/unix/sysv/linux/mips/Dist: Likewise. * sysdeps/unix/sysv/linux/mips/Makefile: Likewise. * sysdeps/unix/sysv/linux/mips/clone.S: Likewise. * sysdeps/unix/sysv/linux/mips/entry.h: Likewise. * sysdeps/unix/sysv/linux/mips/fpregdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/fxstat.c: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_stat.h: Likewise. * sysdeps/unix/sysv/linux/mips/kernel_termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/lxstat.c: Likewise. * sysdeps/unix/sysv/linux/mips/regdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/sgidefs.h: Likewise. * sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mips/ustat.c: Likewise. * sysdeps/unix/sysv/linux/mips/xmknod.c: Likewise. * sysdeps/unix/sysv/linux/mips/xstat.c: Likewise. * sysdeps/unix/sysv/linux/mips/bits/endian.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/ioctl-types.h: * sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/signum.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/stat.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/statfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/time.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/acct.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/asm.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/cachectl.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/fpregdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/procfs.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/regdef.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/syscall.h: Likewise. * sysdeps/unix/sysv/linux/mips/sys/sysmips.h: Likewise. 1997-04-09 19:05 H.J. Lu (hjl@gnu.ai.mit.edu) * isomac.c (xstrndup): New, use it instead of strndup (). 1997-07-02 08:55 H.J. Lu <hjl@gnu.ai.mit.edu> * sysdeps/i386/dl-machine.h (elf_machine_rel): Print the program name for different sizes. 1997-07-10 15:47 Fila Kolodny <fila@ibi.com> * nis/ypclnt.c: Change references to MAXHOSTNAMELEN to NIS_MAXNAMELEN. Add include of rpcsvc/nis.h. * inet/getnameinfo.c: Delete references to MAXHOSTNAMELEN. * sysdeps/posix/getaddrinfo.c: Likewise. Change size of variable buffer to be big enough to hold an IPv6 address in printable format. 1997-07-12 18:47 Ulrich Drepper <drepper@cygnus.com> * assert/assert.h [!NDEBUG] (assert, assert_perror): Don't use || and && in tests to allow use in C++ code which overloads these operators. Reported by Istvan Marko <istvan@cmdmail.amd.com>. * configure.in: Move mips64* recognition before mips*. Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>. 1997-07-03 20:44 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makerules (lib%.so, $(common-objpfx)libc.so): Don't use automatic variables in dependency lists. (build-shlib): Always filter out the version script file. * extra-lib.mk ($(objpfx)$(lib).so): Depend on version script. 1997-07-12 17:56 Ulrich Drepper <drepper@cygnus.com> * login/login.c (tty_name): Test return value of ttyname_r for != 0, not < 0. * misc/ttyslot.c (ttyslot): Test return value of ttyname_r for == 0, not >= 0. * sysdeps/unix/getlogin.c (getlogin): Test return value of ttyname_r for != 0. * sysdeps/unix/getlogin_r.c (getlogin_r): Likewise. 1997-07-10 Andreas Jaeger <aj@arthur.rhein-neckar.de> * login/utmp_file.c (getutline_r_file): Fix type: compare with *result. 1997-07-11 00:21 Mark Kettenis <kettenis@phys.uva.nl> * login/Makefile (headers): Add utmpx.h and bits/utmpx.h. 1997-07-09 19:21 Mark Kettenis <kettenis@phys.uva.nl> * login/programs/utmpd.c, login/programs/database.c, login/programs/request.c: Prepare messages for internationalization. * login/programs/utmpd.c: (main): Change handling of errors in opening the database. * login/programs/database.c: (open_database, synchronize_dtatabase, initialize_database): Properly handle errors. (get_mtime): Use fstat instead of stat. All callers changed. * login/getutent_r.c: Make setutxent a weak alias for __setutxent. * login/getutent.c: Rename getutent to __getutent and make getutent a weak alias. Make getutxent a weak alias for __getutent. * login/utmpx.h: New file. * sysdeps/gnu/bits/utmp.h: Cleanup. Added comments. * sysdeps/gnu/bits/utmpx.h: New file. * stdio-common/strops.c: Partialy undo last change. Will need more investigation.
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/clone.S')
-rw-r--r--sysdeps/unix/sysv/linux/mips/clone.S125
1 files changed, 125 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/clone.S b/sysdeps/unix/sysv/linux/mips/clone.S
new file mode 100644
index 0000000000..357f70e47f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/clone.S
@@ -0,0 +1,125 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ralf Baechle <ralf@gnu.ai.mit.edu>, 1996.
+
+ 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* clone() is even more special than fork() as it mucks with stacks
+ and invokes a function in the right context after its all over. */
+
+#include <sys/asm.h>
+#include <asm/unistd.h>
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+
+/* int clone(int (*fn)(), void *child_stack, int flags, int nargs, ...) */
+
+#define FRAMESZ 4*SZREG
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+#define MAX_REG_ARGS 4
+#else
+#define MAX_REG_ARGS 6
+#endif
+
+ .text
+NESTED(__clone,4*SZREG,sp)
+#ifdef __PIC__
+ .set noreorder
+ .cpload $25
+ .set reorder
+ .cprestore 16
+#endif
+ PTR_SUBIU sp,FRAMESZ
+#ifdef PROF
+ .set noat
+ move $1,ra
+ jal _mcount
+ .set at
+#endif
+
+ /* Sanity check arguments. */
+ li v0,EINVAL
+ beqz a0,error /* no NULL function pointers */
+ beqz a1,error /* no NULL stack pointers */
+ bltz a3,error /* no negative argument counts */
+
+ /* Allocate space on the new stack and copy args over */
+ move t0,a3 # save nargs for __thread_start
+ PTR_SLL t1,a3,PTR_SCALESHIFT
+ PTR_ADDU t1,a3,sp
+1: REG_L t2,-SZREG(t1)
+ PTR_SUBIU t1,SZREG
+ REG_S t2,-SZREG(a1)
+ PTR_SUBIU a3,1
+ PTR_SUBIU a1,SZREG
+ bnez a3,1b
+
+ /* Do the system call */
+ move t9,a0 # get fn ptr out of the way
+ move a0,a2
+ li v0,__NR_clone
+ syscall
+
+ bnez a3,error
+ beqz v0,__thread_start
+
+ /* Successful return from the parent */
+ PTR_ADDIU sp,FRAMESZ
+ ret
+
+ /* Something bad happened -- no child created */
+error:
+ PTR_ADDIU sp,FRAMESZ
+#ifdef PIC
+ la t9,__syscall_error
+ jr t9
+#else
+ j __syscall_error
+#endif
+ END(__clone)
+
+/* Load up the arguments to the function. Put this block of code in
+ its own function so that we can terminate the stack trace with our
+ debug info.
+
+ At this point we have t0=nargs, t9=fn, sp=&arg[0]. */
+
+NESTED(__thread_start,32,sp)
+ /* Stackframe has been created on entry of clone() */
+ /* Calculate address of jump into argument loading code */
+ li t1,MAX_REG_ARGS
+ slt t0,t1,t2 /* max MAX_REG_ARGS args in registers */
+ MOVN (t2,t1,t0)
+ la v0,arg0
+ PTR_SLL t1,t0,PTR_SCALESHIFT
+ PTR_SUBU v0,t1
+ jr v0
+
+ /* Load the integer register arguments */
+ REG_L a0,SZREG(sp)
+arg0:
+
+ /* Call the user's function */
+ jalr t9
+
+ /* Call _exit rather than doing it inline for breakpoint purposes */
+ move a0,v0
+ jal _exit
+
+ END(__thread_start)
+
+weak_alias(__clone, clone)