binutils-gdb/gas/dw2gencfi.h

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/* dw2gencfi.h - Support for generating Dwarf2 CFI information.
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Copyright (C) 2003-2014 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
2007-07-03 13:01:12 +02:00
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
bfd * Makefile.am (dwarf2.lo): Use dwarf2.h, not elf/dwarf2.h. (elf-eh-frame.lo): Likewise. (elf32-bfin.lo): Likewise. (elf32-frv.lo): Likewise. (elf32-xc16x.lo): Likewise. * Makefile.in: Rebuild. * dwarf2.c: Included dwarf.h, not elf/dwarf2.h. * elf-eh-frame.c: Likewise. * elf32-bfin.c: Likewise. * elf32-frv.c: Likewise. * elf32-xc16x.c: Likewise. binutils * Makefile.am (dwarf.o): Refer to dwarf2.h, not elf/dwarf2.h. * Makefile.in: Rebuild. * dwarf.c: Include dwarf2.h, not elf/dwarf2.h. gas * Makefile.am (DEPTC_alpha_ecoff): Refer to dwarf2.h, not elf/dwarf2.h. (DEPTC_alpha_elf): Likewise. (DEPTC_alpha_evax): Likewise. (DEPTC_arm_elf): Likewise. (DEPTC_hppa_elf): Likewise. (DEPTC_i386_aout): Likewise. (DEPTC_i386_coff): Likewise. (DEPTC_i386_elf): Likewise. (DEPTC_m68k_aout): Likewise. (DEPTC_m68k_coff): Likewise. (DEPTC_m68k_elf): Likewise. (DEPTC_mips_coff): Likewise. (DEPTC_mips_ecoff): Likewise. (DEPTC_mips_elf): Likewise. (DEPTC_ppc_coff): Likewise. (DEPTC_ppc_elf): Likewise. (DEPTC_s390_elf): Likewise. (DEPTC_sh_coff): Likewise. (DEPTC_sh_elf): Likewise. (DEPTC_sh64_elf): Likewise. (DEPTC_sparc_aout): Likewise. (DEPTC_sparc_coff): Likewise. (DEPTC_sparc_elf): Likewise. (as.o): Likewise. (dwarf2dbg.o): Likewise. (dw2gencfi.o): Likewise. (ehopt.o): Likewise. (read.o): Likewise. * Makefile.in: Rebuild. * dw2gencfi.h: Include dwarf2.h, not elf/dwarf2.h. * dwarf2dbg.c: Likewise. * ehopt.c: Likewise. gdb * dwarf2-frame.c: Include dwarf2.h, not elf/dwarf2.h. * dwarf2expr.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * sh-tdep.c: Likewise. * xtensa-tdep.c: Likewise. include * dwarf2.h: New file, moved from elf/. include/elf * dwarf2.h: Move to `..'.
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#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);
2011-05-09 Paul Brook <paul@codesourcery.com> 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.
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/* 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
};
/* The list of all FDEs that have been collected. */
extern struct fde_entry *all_fde_data;
2011-05-09 Paul Brook <paul@codesourcery.com> 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.
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/* 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 */