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2003-12-05 Martin Schwidefsky <schwidefsky@de.ibm.com> * sysdeps/s390/s390-32/elf/setjmp.S (setjmp, __setjmp): Add END statements. * sysdeps/s390/s390-64/elf/setjmp.S (setjmp, __setjmp): Likewise. * sysdeps/s390/s390-32/sysdep.h (ENTRY): Add cfi_startproc directive. (END): Add cfi_endproc directive. * sysdeps/s390/s390-64/sysdep.h (ENTRY, END): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/socket.S (__socket): Remove cfi_startproc and cfi_endproc directive. * sysdeps/unix/sysv/linux/s390/s390-64/socket.S (__socket): Likewise. * sysdeps/s390/s390-32/addmul_1.S (__mpn_addmul_1): Add CFI directives. * sysdeps/s390/s390-32/add_n.S (__mpn_add_n): Likewise. * sysdeps/s390/s390-64/add_n.S (__mpn_add_n): Likewise. * sysdeps/s390/s390-32/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise. * sysdeps/s390/s390-64/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise. * sysdeps/s390/s390-32/mul_1.S (__mpn_mul_1): Likewise. * sysdeps/s390/s390-32/sub_n.S (__mpn_sub_n): Likewise. * sysdeps/s390/s390-64/sub_n.S (__mpn_sub_n): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S (__mmap64): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/mmap.S (__mmap): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/mmap.S (__mmap): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/syscall.S (syscall): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscall.S (syscall): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S (__syscall_error): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S (__syscall_error): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/clone.S (__clone): Add CFI directives. Move thread_start out of ENTRY/PSEUDO_END block to make backchain terminate. * sysdeps/unix/sysv/linux/s390/s390-64/clone.S (__clone): Likewise. * sysdeps/s390/s390-32/backtrace.c (trace_arg): New structure. (unwind_backtrace, unwind_getip): New variables. (init, __backchain_backtrace, backtrace_helper): New functions. (__backtrace): Use unwind info for backtrace instead of backchain walking if the unwind functions can be found. * sysdeps/s390/s390-64/backtrace.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c: New file. * sysdeps/unix/sysv/linux/s390/sys/procfs.h (ELF_NGREG32): New #define. (elf_greg_t32, elf_gregset_t32, elf_fpregset_t32): New types. (elf_prstatus32, elf_prpsinfo32): New structures. (prgregset32_t, prfpregset32_t, prstatus32_t, prpsinfo32_t): New types. * scripts/data/c++-types-s390-linux-gnu.data: New file. * scripts/data/c++-types-s390x-linux-gnu.data: New file.
69 lines
2.5 KiB
ArmAsm
69 lines
2.5 KiB
ArmAsm
/* Wrapper around clone system call. 64 bit S/390 version.
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Copyright (C) 2001, 2003 Free Software Foundation, Inc.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* clone is even more special than fork as it mucks with stacks
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and invokes a function in the right context after its all over. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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/* int __clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
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pid_t *parent_tid, void *tls, pid_t *child_tid); */
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/* sys_clone (void *child_stack, unsigned long flags,
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pid_t *parent_tid, pid_t *child_tid, void *tls); */
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.text
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ENTRY(__clone)
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stg %r6,48(%r15) /* store %r6 to save area */
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cfi_offset (%r6,-112)
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lgr %r0,%r5 /* move *arg out of the way */
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ltgr %r1,%r2 /* check fn and move to %r1 */
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jz error /* no NULL function pointers */
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ltgr %r2,%r3 /* check child_stack and move to %r2 */
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jz error /* no NULL stack pointers */
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lgr %r3,%r4 /* move flags to %r3 */
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lgr %r4,%r6 /* move parent_tid to %r4 */
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lg %r5,168(%r15) /* load child_tid from stack */
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lg %r6,160(%r15) /* load tls from stack */
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svc SYS_ify(clone)
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ltgr %r2,%r2 /* check return code */
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jz thread_start
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lg %r6,48(%r15) /* restore %r6 */
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jgm SYSCALL_ERROR_LABEL
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br %r14
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error:
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lghi %r2,-EINVAL
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jg SYSCALL_ERROR_LABEL
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PSEUDO_END (__clone)
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thread_start:
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/* fn is in gpr 1, arg in gpr 0 */
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lgr %r2,%r0 /* set first parameter to void *arg */
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aghi %r15,-160 /* make room on the stack for the save area */
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xc 0(8,%r15),0(%r15)
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basr %r14,%r1 /* jump to fn */
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#ifdef PIC
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jg _exit@PLT /* branch to _exit -> thread termination */
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#else
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jg _exit /* branch to _exit -> thread termination */
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#endif
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weak_alias (__clone, clone)
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