2001-03-16 09:57:45 +00:00
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/* Assembler macros for 64 bit S/390.
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2015-01-02 16:28:19 +00:00
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Copyright (C) 2001-2015 Free Software Foundation, Inc.
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2000-08-02 15:15:00 +00:00
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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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2001-07-06 04:58:11 +00:00
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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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2000-08-02 15:15:00 +00:00
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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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2001-07-06 04:58:11 +00:00
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Lesser General Public License for more details.
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2000-08-02 15:15:00 +00:00
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2001-07-06 04:58:11 +00:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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2000-08-02 15:15:00 +00:00
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#include <sysdeps/generic/sysdep.h>
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#ifdef __ASSEMBLER__
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/* Syntactic details of assembler. */
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/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */
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#define ALIGNARG(log2) 1<<log2
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#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
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/* Define an entry point visible from C. */
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#define ENTRY(name) \
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2012-08-02 19:04:29 +00:00
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.globl C_SYMBOL_NAME(name); \
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.type C_SYMBOL_NAME(name),@function; \
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2000-08-02 15:15:00 +00:00
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.align ALIGNARG(2); \
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C_LABEL(name) \
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Update.
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.
2003-12-06 00:20:16 +00:00
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cfi_startproc; \
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2000-08-02 15:15:00 +00:00
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CALL_MCOUNT
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#undef END
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#define END(name) \
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Update.
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.
2003-12-06 00:20:16 +00:00
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cfi_endproc; \
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2000-08-02 15:15:00 +00:00
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ASM_SIZE_DIRECTIVE(name) \
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/* If compiled for profiling, call `mcount' at the start of each function. */
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#ifdef PROF
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#ifdef PIC
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#define CALL_MCOUNT \
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2001-03-16 09:57:45 +00:00
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lgr 0,14 ; larl 1,0f ; brasl 14,_mcount@PLT ; lgr 14,0 ; \
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.data ; .align 4 ; 0: .long 0 ; .text ;
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2000-08-02 15:15:00 +00:00
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#else
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#define CALL_MCOUNT \
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2001-03-16 09:57:45 +00:00
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lgr 0,14 ; larl 1,0f ; brasl 14,_mcount ; lgr 14,0 ; \
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2003-03-07 10:06:56 +00:00
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.data ; .align 4 ; 0: .long 0 ; .text ;
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2000-08-02 15:15:00 +00:00
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#endif
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#else
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#define CALL_MCOUNT /* Do nothing. */
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#endif
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/* Since C identifiers are not normally prefixed with an underscore
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on this system, the asm identifier `syscall_error' intrudes on the
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C name space. Make sure we use an innocuous name. */
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#define syscall_error __syscall_error
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#define mcount _mcount
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2013-04-06 14:53:54 +00:00
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#undef PSEUDO
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2003-01-14 01:20:41 +00:00
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#define PSEUDO(name, syscall_name, args) \
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lose: SYSCALL_PIC_SETUP \
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jg JUMPTARGET(syscall_error); \
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.globl syscall_error; \
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ENTRY (name) \
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DO_CALL (syscall_name, args); \
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2000-08-02 15:15:00 +00:00
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jm lose
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#undef PSEUDO_END
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#define PSEUDO_END(name) \
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END (name)
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2003-01-09 20:30:21 +00:00
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#undef JUMPTARGET
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2000-08-02 15:15:00 +00:00
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#ifdef PIC
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2003-01-14 01:20:41 +00:00
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#define JUMPTARGET(name) name##@PLT
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2001-03-16 09:57:45 +00:00
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#define SYSCALL_PIC_SETUP \
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larl %r12,_GLOBAL_OFFSET_TABLE_
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2000-08-02 15:15:00 +00:00
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#else
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2003-01-14 01:20:41 +00:00
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#define JUMPTARGET(name) name
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2000-08-02 15:15:00 +00:00
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#define SYSCALL_PIC_SETUP /* Nothing. */
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#endif
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/* Local label name for asm code. */
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#ifndef L
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2003-03-07 10:06:56 +00:00
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#define L(name) .L##name
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2000-08-02 15:15:00 +00:00
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#endif
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#endif /* __ASSEMBLER__ */
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