diff options
author | Ulrich Drepper <drepper@redhat.com> | 2002-09-05 10:28:51 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2002-09-05 10:28:51 +0000 |
commit | 92b27c7470ca2844e4e1265746cb56ad1f664df3 (patch) | |
tree | 989027a0a57d82034206d3e2bbb7a4151dd2e24f /sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S | |
parent | 75e4a282218ce382d0fb3ff1ffef2108dd84fcce (diff) | |
download | glibc-92b27c7470ca2844e4e1265746cb56ad1f664df3.tar.gz |
Update.
2002-07-29 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/__longjmp.S: Moved to...
* sysdeps/powerpc/powerpc32/__longjmp.S: ...here.
* sysdeps/powerpc/add_n.S: Moved to...
* sysdeps/powerpc/powerpc32/add_n.S: ...here.
* sysdeps/powerpc/addmul_1.S: Moved to...
* sysdeps/powerpc/powerpc32/addmul_1.S: ...here.
* sysdeps/powerpc/atomicity.h: Moved to...
* sysdeps/powerpc/powerpc32/atomicity.h: ...here.
* sysdeps/powerpc/backtrace.c: Moved to...
* sysdeps/powerpc/powerpc32/backtrace.c: ...here.
* sysdeps/powerpc/bp-asm.h: Moved to...
* sysdeps/powerpc/powerpc32/bp-asm.h: ...here.
* sysdeps/powerpc/bsd-_setjmp.S: Moved to...
* sysdeps/powerpc/powerpc32/bsd-_setjmp.S: ...here.
* sysdeps/powerpc/bsd-setjmp.S: Moved to...
* sysdeps/powerpc/powerpc32/bsd-setjmp.S: ...here.
* sysdeps/powerpc/dl-machine.c: Moved to...
* sysdeps/powerpc/powerpc32/dl-machine.c: ...here.
* sysdeps/powerpc/dl-machine.h: Moved to...
* sysdeps/powerpc/powerpc32/dl-machine.h: ...here.
* sysdeps/powerpc/dl-start.S: Moved to...
* sysdeps/powerpc/powerpc32/dl-start.S: ...here.
* sysdeps/powerpc/gprrest0.S: Moved to...
* sysdeps/powerpc/powerpc32/gprrest0.S: ...here.
* sysdeps/powerpc/gprrest1.S: Moved to...
* sysdeps/powerpc/powerpc32/gprrest1.S: ...here.
* sysdeps/powerpc/gprsave0.S: Moved to...
* sysdeps/powerpc/powerpc32/gprsave0.S: ...here.
* sysdeps/powerpc/gprsave1.S: Moved to...
* sysdeps/powerpc/powerpc32/gprsave1.S: ...here.
* sysdeps/powerpc/lshift.S: Moved to...
* sysdeps/powerpc/powerpc32/lshift.S: ...here.
* sysdeps/powerpc/memset.S: Moved to...
* sysdeps/powerpc/powerpc32/memset.S: ...here.
* sysdeps/powerpc/mul_1.S: Moved to...
* sysdeps/powerpc/powerpc32/mul_1.S: ...here.
* sysdeps/powerpc/ppc-mcount.S: Moved to...
* sysdeps/powerpc/powerpc32/ppc-mcount.S: ...here.
* sysdeps/powerpc/register-dump.h: Moved to...
* sysdeps/powerpc/powerpc32/register-dump.h: ...here.
* sysdeps/powerpc/rshift.S: Moved to...
* sysdeps/powerpc/powerpc32/rshift.S: ...here.
* sysdeps/powerpc/setjmp.S: Moved to...
* sysdeps/powerpc/powerpc32/setjmp.S: ...here.
* sysdeps/powerpc/stpcpy.S: Moved to...
* sysdeps/powerpc/powerpc32/stpcpy.S: ...here.
* sysdeps/powerpc/strchr.S: Moved to...
* sysdeps/powerpc/powerpc32/strchr.S: ...here.
* sysdeps/powerpc/strcmp.S: Moved to...
* sysdeps/powerpc/powerpc32/strcmp.S: ...here.
* sysdeps/powerpc/strcpy.S: Moved to...
* sysdeps/powerpc/powerpc32/strcpy.S: ...here.
* sysdeps/powerpc/strlen.S: Moved to...
* sysdeps/powerpc/powerpc32/strlen.S: ...here.
* sysdeps/powerpc/sub_n.S: Moved to...
* sysdeps/powerpc/powerpc32/sub_n.S: ...here.
* sysdeps/powerpc/submul_1.S: Moved to...
* sysdeps/powerpc/powerpc32/submul_1.S: ...here.
* sysdeps/powerpc/elf/bzero.S: Moved to...
* sysdeps/powerpc/powerpc32/elf/bzero.S: ...here.
* sysdeps/powerpc/elf/start.S: Moved to...
* sysdeps/powerpc/powerpc32/elf/start.S: ...here.
* sysdeps/powerpc/fpu/__longjmp.S: Moved to...
* sysdeps/powerpc/powerpc32/fpu/__longjmp.S: ...here.
* sysdeps/powerpc/fpu/fprrest.S: Moved to...
* sysdeps/powerpc/powerpc32/fpu/fprrest.S: ...here.
* sysdeps/powerpc/fpu/fprsave.S: Moved to...
* sysdeps/powerpc/powerpc32/fpu/fprsave.S: ...here.
* sysdeps/powerpc/fpu/setjmp.S: Moved to...
* sysdeps/powerpc/powerpc32/fpu/setjmp.S: ...here.
* sysdeps/powerpc/fpu/s_copysign.S: Moved to...
* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: ...here.
* sysdeps/powerpc/fpu/s_copysignf.S: Moved to...
* sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: ...here.
* sysdeps/unix/sysv/linux/powerpc/brk.S: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S: ...here.
* sysdeps/unix/sysv/linux/powerpc/clone.S: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: ...here.
* sysdeps/unix/sysv/linux/powerpc/glob64.c: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c: ...here.
* sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: ...here.
* sysdeps/unix/sysv/linux/powerpc/socket.S: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S: ...here.
* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: ...here.
* sysdeps/unix/sysv/linux/powerpc/syscalls.list: Moved to...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: ...here.
Support PowerPC64. Separate powerpc into powerpc/powerpc32 and
powerpc/powerpc64.
2002-07-29 Steven Munroe <sjmunroe@us.ibm.com>
* FAQ.in: Add powerpc64 to supported targets list. Also state the
minimum gcc version is 3.2
* README: Add powerpc64 to supported targets list.
* configure.in: Change machine=powerpc to machine=powerpc/powerpc32.
Add powerpc64 and machine=powerpc/powerpc64.
(HAVE_ASM_GLOBAL_DOT_NAME): Define if linux*powerpc/powerpc64*.
* shlib-versions: Set DEFAULT version to 2.2.5 for powerpc64.
* sysdeps/powerpc/Dist: Remove dl-machine.c, dl-start.S, ppc-mcount.S,
gprsave1.S, gprsave0.S, gprrest1.S, and gprrest0.S.
* sysdeps/powerpc/powerpc32/Dist: New file.
* sysdeps/powerpc/Implies: Remove wordsize-32 and powerpc/soft-fp.
* sysdeps/powerpc/powerpc32/Implies: New file.
* sysdeps/powerpc/Makefile(cflags): Remove powerpc32 specific cflags.
($(with-fp) = no): Move test to powerpc32/Makefile.
($(subdir) = misc): Move to powerpc32/Makefile.
($(build-shared) = yes): Move to powerpc32/Makefile.
($(subdir) = csu): Move to powerpc32/Makefile.
(sysdep-rtld-routines): Remove dl-start. Moved these bits to ...
* sysdeps/powerpc/powerpc32/Makefile: New file.
* sysdeps/powerpc/Versions: Remove libgcc functions.
* sysdeps/powerpc/powerpc32/Versions: New file.
* sysdeps/powerpc/fpu/Makefile: Remove fprsave and fprrest.
* sysdeps/powerpc/powerpc32/fpu/Makefile: New file.
* sysdeps/unix/sysv/linux/configure.in (powerpc*):
Set arch_minimum_kernel=2.4.19 for powerpc/powerpc64. Also set
libc_cv_gcc_unwind_find_fde=yes only if !powerpc/powerpc64.
($machine): Add powerpc/powerpc64 to if ... | for
libc_cv_slibdir=/libc64.
(powerpc*): Set ldd_rewrite_script.
* sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed: New file.
* sysdeps/unix/sysv/linux/powerpc/Dist: Remove clone.S.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist: New file.
Add clone.S.
* sysdeps/unix/sysv/linux/powerpc/Makefile: Remove oldgetrlimit64.
* sysdeps/unix/sysv/linux/powerpc/Versions: Remove GLIBC_2.0
functions. Remove GLIBC_2.2 functions except getrlimit and
setrlimit. Moved them to ...
* sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions: New file.
2002-09-04 Ulrich Drepper <drepper@redhat.com>
* libio/tst-atime.c: Include <errno.h>.
(do_test): Only perform fstatvfs check if ST_NOATIME is defined.
2002-09-03 Isamu Hasegawa <isamu@yamato.ibm.com>
* posix/regcomp.c (regcomp): Append "__restrict" modifier to avoid
warnings of some compilers.
(build_collating_symbol): Change the type of characters from
"unsigned char" to "char", and append a cast to "char*" pointer in
array subscript.
(build_collating_symbol): Likewise.
(build_equiv_class): Likewise.
(build_charclass): Likewise.
(re_compile_pattern): Remove incorrect cast.
(re_compile_fastmap_iter): Change the type of characters from
"unsigned char" to "char", and append a cast to "char*" pointer
in array subscript.
(parse_bracket_exp): Likewise.
* posix/regex_internal.c (re_string_construct_common): Likewise.
(re_string_allocate): Likewise.
(re_string_construct): Likewise.
(re_string_realloc_buffers): Likewise.
(build_wcs_buffer): Likewise.
(re_string_reconstruct): Likewise.
* posix/regex_internal.h: Change the type of characters in
re_string_t and bracket_elem_t from "unsigned char" to "char".
* posix/regexec.c (regexec): Append "__restrict" modifier to avoid
warnings of some compilers.
(transit_state_bkref_loop): Change the type of characters from
"unsigned char" to "char", and append a cast to "char*" pointer in
array subscript.
(check_node_accept_bytes): Likewise.
(find_collation_sequence_value): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S new file mode 100644 index 0000000000..97849a5b26 --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S @@ -0,0 +1,94 @@ +/* Wrapper around clone system call. + Copyright (C) 1997,98,99,2000,02 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <bp-sym.h> +#include <bp-asm.h> + +/* This is the only really unusual system call in PPC linux, but not + because of any weirdness in the system call itself; because of + all the freaky stuff we have to do to make the call useful. */ + +/* int [r3] clone(int (*fn)(void *arg) [r3], void *child_stack [r4], + int flags [r5], void *arg [r6]); */ + +ENTRY (BP_SYM (__clone)) + /* GKM FIXME: add bounds checks, where sensible. */ + DISCARD_BOUNDS (r4) + DISCARD_BOUNDS (r6) + + /* Check for child_stack == NULL || fn == NULL. */ + cmpwi cr0,r4,0 + cmpwi cr1,r3,0 + cror cr0*4+eq,cr1*4+eq,cr0*4+eq + beq- cr0,L(badargs) + + /* Set up stack frame for parent. */ + stwu r1,-32(r1) + stmw r29,16(r1) + + /* Set up stack frame for child. */ + clrrwi r4,r4,4 + li r0,0 + stwu r0,-16(r4) + + /* Save fn, args, stack across syscall. */ + mr r29,r3 /* Function in r29. */ + mr r30,r4 /* Stack pointer in r30. */ + mr r31,r6 /* Argument in r31. */ + + /* 'flags' argument is first parameter to clone syscall. (The other + argument is the stack pointer, already in r4.) */ + mr r3,r5 + + /* Do the call. */ + DO_CALL(SYS_ify(clone)) + + /* Check for child process. */ + cmpwi cr1,r3,0 + crandc cr1*4+eq,cr1*4+eq,cr0*4+so + bne- cr1,L(parent) /* The '-' is to minimise the race. */ + + /* On at least mklinux DR3a5, clone() doesn't actually change + the stack pointer. I'm pretty sure this is a bug, because + it adds a race condition if a signal is sent to a thread + just after it is created (in the previous three instructions). */ + mr r1,r30 + /* Call procedure. */ + mtctr r29 + mr r3,r31 + bctrl + /* Call _exit with result from procedure. */ + b HIDDEN_JUMPTARGET(_exit) + +L(parent): + /* Parent. Restore registers & return. */ + lmw r29,16(r1) + addi r1,r1,32 + bnslr+ + b JUMPTARGET(__syscall_error) + +L(badargs): + li r3,EINVAL + b JUMPTARGET(__syscall_error) +END (BP_SYM (__clone)) + +weak_alias (BP_SYM (__clone), BP_SYM (clone)) |