1bce6bd86f
bfd/ * elf32-tic6x.c (is_tic6x_elf_unwind_section_name, elf32_tic6x_fake_sections): New functions. (elf_backend_fake_sections): Define. gas/ * config/tc-tic6x.c (streq): Define. (tic6x_get_unwind): New. (s_tic6x_cantunwind, s_tic6x_handlerdata, s_tic6x_endp, s_tic6x_personalityindex, s_tic6x_personality): New functions. (md_pseudo_table): Add "endp", "handlerdata", "personalityindex", "personality" and "cantunwind". (tic6x_regname_to_dw2regnum, tic6x_frame_initial_instructions, tic6x_start_unwind_section, tic6x_unwind_frame_regs, tic6x_pop_rts_offset_little, tic6x_pop_rts_offset_big, tic6x_unwind_reg_from_dwarf, tic6x_flush_unwind_word, tic6x_unwind_byte, tic6x_unwind_2byte, tic6x_unwind_uleb, tic6x_cfi_startproc, output_exidx_entry, tic6x_output_unwinding, tic6x_cfi_endproc): New. * config/tc-tic6x.h (TIC6X_NUM_UNWIND_REGS): Define. (tic6x_unwind_info): New. (tic6x_segment_info_type): Add marked_pr_dependency, unwind and text_unwind. (TARGET_USE_CFIPOP, tc_regname_to_dw2regnum, tc_cfi_frame_initial_instructions, DWARF2_DEFAULT_RETURN_COLUMN, DWARF2_CIE_DATA_ALIGNMENT, tc_cfi_startproc, tc_cfi_endproc, tc_cfi_section_name): Define. * doc/c-tic6x.texi: Document new unwinding directives. * dw2gencfi.c (tc_cfi_startproc, tc_cfi_endproc): Add default definitions. (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to dw2gencfi.h. (CFI_EMIT_target): Define. (dot_cfi_sections): Check tc_cfi_section_name. (dot_cfi_startproc): Use tc_cfi_startproc. (dot_cfi_endproc): Use tc_cfi_endproc. * dw2gencfi.h (cfi_insn_data, fde_entry, CFI_adjust_cfa_offset, CFI_return_column, CFI_rel_offset, CFI_escape, CFI_signal_frame, CFI_val_encoded_addr): Move to here from dw2gencfi.c. gas/testsuite: * gas/tic6x/unwind-1.d: New test. * gas/tic6x/unwind-1.s: New test. * gas/tic6x/unwind-2.d: New test. * gas/tic6x/unwind-2.s: New test. * gas/tic6x/unwind-3.d: New test. * gas/tic6x/unwind-3.s: New test. * gas/tic6x/unwind-bad-1.d: New test. * gas/tic6x/unwind-bad-1.s: New test. * gas/tic6x/unwind-bad-1.l: New test. * gas/tic6x/unwind-bad-2.d: New test. * gas/tic6x/unwind-bad-2.s: New test. * gas/tic6x/unwind-bad-2.l: New test. include/ * elf/tic6x.h (ELF_STRING_C6000_unwind, ELF_STRING_C6000_unwind_info, ELF_STRING_C6000_unwind_once, ELF_STRING_C6000_unwind_info_once): Define.
130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/* dw2gencfi.h - Support for generating Dwarf2 CFI information.
|
|
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 3, or (at your option)
|
|
any later version.
|
|
|
|
GAS 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 General Public License for more details.
|
|
|
|
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, 51 Franklin Street - Fifth Floor, Boston, MA
|
|
02110-1301, USA. */
|
|
|
|
#ifndef DW2GENCFI_H
|
|
#define DW2GENCFI_H
|
|
|
|
#include "dwarf2.h"
|
|
|
|
struct symbol;
|
|
|
|
extern const pseudo_typeS cfi_pseudo_table[];
|
|
|
|
/* cfi_finish() is called at the end of file. It will complain if
|
|
the last CFI wasn't properly closed by .cfi_endproc. */
|
|
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);
|
|
|
|
/* Structures for md_cfi_end. */
|
|
|
|
#if defined (TE_PE) || defined (TE_PEP)
|
|
#define SUPPORT_FRAME_LINKONCE 1
|
|
#else
|
|
#define SUPPORT_FRAME_LINKONCE 0
|
|
#endif
|
|
|
|
struct cfi_insn_data
|
|
{
|
|
struct cfi_insn_data *next;
|
|
#if SUPPORT_FRAME_LINKONCE
|
|
segT cur_seg;
|
|
#endif
|
|
int insn;
|
|
union
|
|
{
|
|
struct
|
|
{
|
|
unsigned reg;
|
|
offsetT offset;
|
|
} ri;
|
|
|
|
struct
|
|
{
|
|
unsigned reg1;
|
|
unsigned reg2;
|
|
} rr;
|
|
|
|
unsigned r;
|
|
offsetT i;
|
|
|
|
struct
|
|
{
|
|
symbolS *lab1;
|
|
symbolS *lab2;
|
|
} ll;
|
|
|
|
struct cfi_escape_data *esc;
|
|
|
|
struct
|
|
{
|
|
unsigned reg, encoding;
|
|
expressionS exp;
|
|
} ea;
|
|
} u;
|
|
};
|
|
|
|
struct fde_entry
|
|
{
|
|
struct fde_entry *next;
|
|
#if SUPPORT_FRAME_LINKONCE
|
|
segT cur_seg;
|
|
#endif
|
|
symbolS *start_address;
|
|
symbolS *end_address;
|
|
struct cfi_insn_data *data;
|
|
struct cfi_insn_data **last;
|
|
unsigned char per_encoding;
|
|
unsigned char lsda_encoding;
|
|
expressionS personality;
|
|
expressionS lsda;
|
|
unsigned int return_column;
|
|
unsigned int signal_frame;
|
|
#if SUPPORT_FRAME_LINKONCE
|
|
int handled;
|
|
#endif
|
|
};
|
|
|
|
/* Fake CFI type; outside the byte range of any real CFI insn. */
|
|
#define CFI_adjust_cfa_offset 0x100
|
|
#define CFI_return_column 0x101
|
|
#define CFI_rel_offset 0x102
|
|
#define CFI_escape 0x103
|
|
#define CFI_signal_frame 0x104
|
|
#define CFI_val_encoded_addr 0x105
|
|
|
|
#endif /* DW2GENCFI_H */
|