mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
167 lines
5.5 KiB
C
167 lines
5.5 KiB
C
/* Generic asm macros used on many machines.
|
|
Copyright (C) 1991,92,93,96,98,2002,2003,2009 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. */
|
|
|
|
#ifndef C_LABEL
|
|
|
|
/* Define a macro we can use to construct the asm name for a C symbol. */
|
|
#ifdef NO_UNDERSCORES
|
|
#ifdef __STDC__
|
|
#define C_LABEL(name) name##:
|
|
#else
|
|
#define C_LABEL(name) name/**/:
|
|
#endif
|
|
#else
|
|
#ifdef __STDC__
|
|
#define C_LABEL(name) _##name##:
|
|
#else
|
|
#define C_LABEL(name) _/**/name/**/:
|
|
#endif
|
|
#endif
|
|
|
|
#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
|
|
|
|
/* Makros to generate eh_frame unwind information. */
|
|
# ifdef HAVE_ASM_CFI_DIRECTIVES
|
|
# 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
|
|
# define cfi_startproc
|
|
# define cfi_endproc
|
|
# define cfi_def_cfa(reg, off)
|
|
# define cfi_def_cfa_register(reg)
|
|
# define cfi_def_cfa_offset(off)
|
|
# define cfi_adjust_cfa_offset(off)
|
|
# define cfi_offset(reg, off)
|
|
# define cfi_rel_offset(reg, off)
|
|
# define cfi_register(r1, r2)
|
|
# define cfi_return_column(reg)
|
|
# define cfi_restore(reg)
|
|
# define cfi_same_value(reg)
|
|
# define cfi_undefined(reg)
|
|
# define cfi_remember_state
|
|
# define cfi_restore_state
|
|
# define cfi_window_save
|
|
# define cfi_personality(enc, exp)
|
|
# define cfi_lsda(enc, exp)
|
|
# endif
|
|
|
|
#else /* ! ASSEMBLER */
|
|
# ifdef HAVE_ASM_CFI_DIRECTIVES
|
|
# 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)
|
|
# else
|
|
# define CFI_STARTPROC
|
|
# define CFI_ENDPROC
|
|
# define CFI_DEF_CFA(reg, off)
|
|
# define CFI_DEF_CFA_REGISTER(reg)
|
|
# define CFI_DEF_CFA_OFFSET(off)
|
|
# define CFI_ADJUST_CFA_OFFSET(off)
|
|
# define CFI_OFFSET(reg, off)
|
|
# define CFI_REL_OFFSET(reg, off)
|
|
# define CFI_REGISTER(r1, r2)
|
|
# define CFI_RETURN_COLUMN(reg)
|
|
# define CFI_RESTORE(reg)
|
|
# define CFI_UNDEFINED(reg)
|
|
# define CFI_REMEMBER_STATE
|
|
# define CFI_RESTORE_STATE
|
|
# define CFI_WINDOW_SAVE
|
|
# define CFI_PERSONALITY(enc, exp)
|
|
# define CFI_LSDA(enc, exp)
|
|
# endif
|
|
|
|
#endif /* __ASSEMBLER__ */
|
|
|
|
/* Values used for encoding parameter of cfi_personality and cfi_lsda. */
|
|
#define DW_EH_PE_absptr 0x00
|
|
#define DW_EH_PE_omit 0xff
|
|
#define DW_EH_PE_uleb128 0x01
|
|
#define DW_EH_PE_udata2 0x02
|
|
#define DW_EH_PE_udata4 0x03
|
|
#define DW_EH_PE_udata8 0x04
|
|
#define DW_EH_PE_sleb128 0x09
|
|
#define DW_EH_PE_sdata2 0x0a
|
|
#define DW_EH_PE_sdata4 0x0b
|
|
#define DW_EH_PE_sdata8 0x0c
|
|
#define DW_EH_PE_signed 0x08
|
|
#define DW_EH_PE_pcrel 0x10
|
|
#define DW_EH_PE_textrel 0x20
|
|
#define DW_EH_PE_datarel 0x30
|
|
#define DW_EH_PE_funcrel 0x40
|
|
#define DW_EH_PE_aligned 0x50
|
|
#define DW_EH_PE_indirect 0x80
|