/* dw2gencfi.h - Support for generating Dwarf2 CFI information.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
Contributed by Michal Ludvig <mludvig@suse.cz>
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#ifndef DW2GENCFI_H
#define DW2GENCFI_H
-#include "elf/dwarf2.h"
+#include "dwarf2.h"
-struct cfi_config {
- /* Target address length in bytes. (usually 4 or 8).
- Round it up for archs like S/390 with 31b addresses. */
- unsigned int addr_length;
-
- /* Alignment of .eh_frame blocks in bytes (usually 1, 4 or 8). */
- unsigned int eh_align;
-
- /* Code alignment (1 for x86/amd64 machines, 4 or 8 for
- RISC machines). Consult Dwarf2 standard for details. */
- int code_align;
-
- /* Data (stack) alignment (-4 on x86, -8 on amd64, something
- positive on archs where stack grows up). Consult Dwarf2
- standard for details. */
- int data_align;
-
- /* Return address column (0x8 on x86, 0x10 on amd64). Consult
- Dwarf2 standard for details. */
- int ra_column;
-
- /* Relocation type for init_addr FDE record. (BFD_RELOC_64
- on amd64). */
- int reloc_type;
-};
-
-/* Codes of CFI instructions taken from Dwarf2 standard. */
-enum cfi_insn {
- CFA_nop = DW_CFA_nop,
- CFA_set_loc = DW_CFA_set_loc,
- CFA_advance_loc1 = DW_CFA_advance_loc1,
- CFA_advance_loc2 = DW_CFA_advance_loc2,
- CFA_advance_loc4 = DW_CFA_advance_loc4,
- CFA_offset_extended = DW_CFA_offset_extended,
- CFA_resotre_extended = DW_CFA_restore_extended,
- CFA_undefined = DW_CFA_undefined,
- CFA_same_value = DW_CFA_same_value,
- CFA_register = DW_CFA_register,
- CFA_remember_state = DW_CFA_remember_state,
- CFA_restore_state = DW_CFA_restore_state,
- CFA_def_cfa = DW_CFA_def_cfa,
- CFA_def_cfa_register = DW_CFA_def_cfa_register,
- CFA_def_cfa_offset = DW_CFA_def_cfa_offset,
- CFA_advance_loc = DW_CFA_advance_loc,
- CFA_offset = DW_CFA_offset,
- CFA_restore = DW_CFA_restore,
-
- /* These don't belong to the standard. */
- CFI_startproc = 0xff00,
- CFI_endproc = 0xff01,
- CFI_adjust_cfa_offset = 0xff10,
- CFI_verbose = 0xffff
-};
+struct symbol;
extern const pseudo_typeS cfi_pseudo_table[];
-/* Insert .cfi_* directives to the list of pseudo-ops. */
-void cfi_pop_insert PARAMS ((void));
-
-/* Set/change setup of the CFI machinery. This change won't
- affect already generated CIEs/FDEs. */
-void cfi_set_config PARAMS ((struct cfi_config *cfg));
-
/* cfi_finish() is called at the end of file. It will complain if
the last CFI wasn't properly closed by .cfi_endproc. */
-void cfi_finish PARAMS ((void));
-
-/* Add CFI instruction to the list of instructions
- of the current frame. cfi_add_insn() could be used
- in tc_cfi_frame_initial_instructions() to add instructions
- needed for every frame (ie. those that usually go to CIE). */
-void cfi_add_insn (enum cfi_insn insn, long param0, long param1);
+extern void cfi_finish (void);
+
+/* Entry points for backends to add unwind information. */
+extern void cfi_new_fde (struct symbol *);
+extern void cfi_end_fde (struct symbol *);
+extern void cfi_set_return_column (unsigned);
+extern void cfi_add_advance_loc (struct symbol *);
+
+extern void cfi_add_CFA_offset (unsigned, offsetT);
+extern void cfi_add_CFA_def_cfa (unsigned, offsetT);
+extern void cfi_add_CFA_register (unsigned, unsigned);
+extern void cfi_add_CFA_def_cfa_register (unsigned);
+extern void cfi_add_CFA_def_cfa_offset (offsetT);
+extern void cfi_add_CFA_restore (unsigned);
+extern void cfi_add_CFA_undefined (unsigned);
+extern void cfi_add_CFA_same_value (unsigned);
+extern void cfi_add_CFA_remember_state (void);
+extern void cfi_add_CFA_restore_state (void);
#endif /* DW2GENCFI_H */
projects / deliverable / binutils-gdb.git / blobdiff