844a34a2ae
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
2.3 KiB
ArmAsm
69 lines
2.3 KiB
ArmAsm
/* Copyright (C) 2001 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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#include <sysdep.h>
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/* Please consult the file sysdeps/unix/sysv/linux/s390/sysdep.h for
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more information about the value -4095 used below.*/
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ENTRY (syscall)
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/* Save registers and setup stack. */
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stmg %r6,%r15,48(%r15) /* Save registers. */
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cfi_offset (%r15,-40)
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cfi_offset (%r14,-48)
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cfi_offset (%r13,-56)
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cfi_offset (%r12,-64)
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cfi_offset (%r11,-72)
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cfi_offset (%r10,-80)
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cfi_offset (%r9,-88)
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cfi_offset (%r8,-96)
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cfi_offset (%r7,-104)
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cfi_offset (%r6,-112)
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lgr %r1,%r15
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lg %r0,8(%r15) /* Load eos. */
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aghi %r15,-160 /* Buy stack space. */
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cfi_adjust_cfa_offset (160)
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stg %r1,0(%r15) /* Store back chain. */
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stg %r0,8(%r15) /* Store eos. */
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lgr %r1,%r2 /* Move syscall number. */
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lgr %r2,%r3 /* First parameter. */
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lgr %r3,%r4 /* Second parameter. */
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lgr %r4,%r5 /* Third parameter. */
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lgr %r5,%r6 /* Fourth parameter. */
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lg %r6,320(%r15) /* Fifth parameter. */
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basr %r7,0
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0: clg %r1,4f-0b(%r7) /* svc number < 256? */
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jl 2f
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1: svc 0
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j 3f
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2: ex %r1,1b-0b(%r7) /* lsb of R1 is subsituted as SVC number */
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3: lg %r15,0(%r15) /* load back chain */
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cfi_adjust_cfa_offset (-160)
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lmg %r6,15,48(%r15) /* Load registers. */
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lghi %r0,-4095
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clgr %r2,%r0 /* Check R2 for error. */
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jgnl SYSCALL_ERROR_LABEL
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br %r14 /* Return to caller. */
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4: .quad 256
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PSEUDO_END (syscall)
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