glibc/sysdeps/generic/sysdep.h

98 lines
3.5 KiB
C

/* Generic asm macros used on many machines.
Copyright (C) 1991-2024 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, see
<https://www.gnu.org/licenses/>. */
#ifndef C_LABEL
/* Define a macro we can use to construct the asm name for a C symbol. */
# define C_LABEL(name) name##:
#endif
#ifdef __ASSEMBLER__
/* Mark the end of function named SYM. This is used on some platforms
to generate correct debugging information. */
# ifndef END
# define END(sym)
# endif
# ifndef JUMPTARGET
# define JUMPTARGET(sym) sym
# endif
#endif
/* Macros to generate eh_frame unwind information. */
#ifdef __ASSEMBLER__
# define cfi_startproc .cfi_startproc
# define cfi_endproc .cfi_endproc
# define cfi_def_cfa(reg, off) .cfi_def_cfa reg, off
# define cfi_def_cfa_register(reg) .cfi_def_cfa_register reg
# define cfi_def_cfa_offset(off) .cfi_def_cfa_offset off
# define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
# define cfi_offset(reg, off) .cfi_offset reg, off
# define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
# define cfi_register(r1, r2) .cfi_register r1, r2
# define cfi_return_column(reg) .cfi_return_column reg
# define cfi_restore(reg) .cfi_restore reg
# define cfi_same_value(reg) .cfi_same_value reg
# define cfi_undefined(reg) .cfi_undefined reg
# define cfi_remember_state .cfi_remember_state
# define cfi_restore_state .cfi_restore_state
# define cfi_window_save .cfi_window_save
# define cfi_personality(enc, exp) .cfi_personality enc, exp
# define cfi_lsda(enc, exp) .cfi_lsda enc, exp
#else /* ! ASSEMBLER */
# define CFI_STRINGIFY(Name) CFI_STRINGIFY2 (Name)
# define CFI_STRINGIFY2(Name) #Name
# define CFI_STARTPROC ".cfi_startproc"
# define CFI_ENDPROC ".cfi_endproc"
# define CFI_DEF_CFA(reg, off) \
".cfi_def_cfa " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
# define CFI_DEF_CFA_REGISTER(reg) \
".cfi_def_cfa_register " CFI_STRINGIFY(reg)
# define CFI_DEF_CFA_OFFSET(off) \
".cfi_def_cfa_offset " CFI_STRINGIFY(off)
# define CFI_ADJUST_CFA_OFFSET(off) \
".cfi_adjust_cfa_offset " CFI_STRINGIFY(off)
# define CFI_OFFSET(reg, off) \
".cfi_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
# define CFI_REL_OFFSET(reg, off) \
".cfi_rel_offset " CFI_STRINGIFY(reg) "," CFI_STRINGIFY(off)
# define CFI_REGISTER(r1, r2) \
".cfi_register " CFI_STRINGIFY(r1) "," CFI_STRINGIFY(r2)
# define CFI_RETURN_COLUMN(reg) \
".cfi_return_column " CFI_STRINGIFY(reg)
# define CFI_RESTORE(reg) \
".cfi_restore " CFI_STRINGIFY(reg)
# define CFI_UNDEFINED(reg) \
".cfi_undefined " CFI_STRINGIFY(reg)
# define CFI_REMEMBER_STATE \
".cfi_remember_state"
# define CFI_RESTORE_STATE \
".cfi_restore_state"
# define CFI_WINDOW_SAVE \
".cfi_window_save"
# define CFI_PERSONALITY(enc, exp) \
".cfi_personality " CFI_STRINGIFY(enc) "," CFI_STRINGIFY(exp)
# define CFI_LSDA(enc, exp) \
".cfi_lsda " CFI_STRINGIFY(enc) "," CFI_STRINGIFY(exp)
#endif
#include "dwarf2.h"