481ff3f386
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.
168 lines
4.9 KiB
C
168 lines
4.9 KiB
C
/* TI C6X ELF support for BFD.
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Copyright 2010, 2011
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Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef _ELF_TIC6X_H
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#define _ELF_TIC6X_H
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#include "elf/reloc-macros.h"
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/* Relocation types. */
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START_RELOC_NUMBERS (elf_tic6x_reloc_type)
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RELOC_NUMBER (R_C6000_NONE, 0)
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RELOC_NUMBER (R_C6000_ABS32, 1)
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RELOC_NUMBER (R_C6000_ABS16, 2)
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RELOC_NUMBER (R_C6000_ABS8, 3)
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RELOC_NUMBER (R_C6000_PCR_S21, 4)
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RELOC_NUMBER (R_C6000_PCR_S12, 5)
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RELOC_NUMBER (R_C6000_PCR_S10, 6)
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RELOC_NUMBER (R_C6000_PCR_S7, 7)
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RELOC_NUMBER (R_C6000_ABS_S16, 8)
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RELOC_NUMBER (R_C6000_ABS_L16, 9)
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RELOC_NUMBER (R_C6000_ABS_H16, 10)
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RELOC_NUMBER (R_C6000_SBR_U15_B, 11)
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RELOC_NUMBER (R_C6000_SBR_U15_H, 12)
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RELOC_NUMBER (R_C6000_SBR_U15_W, 13)
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RELOC_NUMBER (R_C6000_SBR_S16, 14)
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RELOC_NUMBER (R_C6000_SBR_L16_B, 15)
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RELOC_NUMBER (R_C6000_SBR_L16_H, 16)
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RELOC_NUMBER (R_C6000_SBR_L16_W, 17)
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RELOC_NUMBER (R_C6000_SBR_H16_B, 18)
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RELOC_NUMBER (R_C6000_SBR_H16_H, 19)
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RELOC_NUMBER (R_C6000_SBR_H16_W, 20)
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RELOC_NUMBER (R_C6000_SBR_GOT_U15_W, 21)
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RELOC_NUMBER (R_C6000_SBR_GOT_L16_W, 22)
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RELOC_NUMBER (R_C6000_SBR_GOT_H16_W, 23)
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RELOC_NUMBER (R_C6000_DSBT_INDEX, 24)
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RELOC_NUMBER (R_C6000_PREL31, 25)
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RELOC_NUMBER (R_C6000_COPY, 26)
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RELOC_NUMBER (R_C6000_JUMP_SLOT, 27)
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RELOC_NUMBER (R_C6000_EHTYPE, 28)
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RELOC_NUMBER (R_C6000_PCR_H16, 29)
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RELOC_NUMBER (R_C6000_PCR_L16, 30)
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RELOC_NUMBER (R_C6000_ALIGN, 253)
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RELOC_NUMBER (R_C6000_FPHEAD, 254)
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RELOC_NUMBER (R_C6000_NOCMP, 255)
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END_RELOC_NUMBERS (R_TIC6X_max)
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/* Processor-specific flags. */
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/* File contains static relocation information. */
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#define EF_C6000_REL 0x1
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/* Processor-specific section types. */
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/* Unwind function table for stack unwinding. */
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#define SHT_C6000_UNWIND 0x70000001
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/* DLL dynamic linking pre-emption map. */
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#define SHT_C6000_PREEMPTMAP 0x70000002
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/* Object file compatibility attributes. */
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#define SHT_C6000_ATTRIBUTES 0x70000003
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/* Intermediate code for link-time optimization. */
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#define SHT_TI_ICODE 0x7F000000
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/* Symbolic cross reference information. */
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#define SHT_TI_XREF 0x7F000001
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/* Reserved. */
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#define SHT_TI_HANDLER 0x7F000002
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/* Compressed data for initializing C variables. */
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#define SHT_TI_INITINFO 0x7F000003
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/* Extended program header attributes. */
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#define SHT_TI_PHATTRS 0x7F000004
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/* Processor specific section indices. These sections do not actually
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exist. Symbols with a st_shndx field corresponding to one of these
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values have a special meaning. */
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/* Small data area common symbol. */
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#define SHN_TIC6X_SCOMMON SHN_LORESERVE
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/* Processor-specific segment types. */
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/* Extended Segment Attributes. */
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#define PT_C6000_PHATTR 0x70000000
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/* Processor-specific dynamic tags. */
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/* Undocumented. */
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#define DT_C6000_GSYM_OFFSET 0x6000000D
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/* Undocumented. */
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#define DT_C6000_GSTR_OFFSET 0x6000000F
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/* Statically linked base address of data segment. */
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#define DT_C6000_DSBT_BASE 0x70000000
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/* Number of entries in this module's DSBT. */
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#define DT_C6000_DSBT_SIZE 0x70000001
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/* Undocumented. */
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#define DT_C6000_PREEMPTMAP 0x70000002
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/* The hard-coded DSBT index for this module, if any. */
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#define DT_C6000_DSBT_INDEX 0x70000003
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/* Extended program header attributes. */
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/* Terminate a segment. */
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#define PHA_NULL 0x0
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/* Segment's address bound to the final address. */
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#define PHA_BOUND 0x1
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/* Segment cannot be further relocated. */
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#define PHA_READONLY 0x2
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/* Build attributes. */
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enum
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{
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#define TAG(tag, value) tag = value,
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#include "elf/tic6x-attrs.h"
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#undef TAG
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Tag_C6XABI_last
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};
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/* Values for Tag_ISA. GNU-specific names; the ABI does not specify
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names for these values. */
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enum
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{
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C6XABI_Tag_ISA_none = 0,
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C6XABI_Tag_ISA_C62X = 1,
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C6XABI_Tag_ISA_C67X = 3,
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C6XABI_Tag_ISA_C67XP = 4,
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C6XABI_Tag_ISA_C64X = 6,
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C6XABI_Tag_ISA_C64XP = 7,
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C6XABI_Tag_ISA_C674X = 8
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};
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/* Special section names. */
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#define ELF_STRING_C6000_unwind ".c6xabi.exidx"
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#define ELF_STRING_C6000_unwind_info ".c6xabi.extab"
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#define ELF_STRING_C6000_unwind_once ".gnu.linkonce.c6xabi.exidx."
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#define ELF_STRING_C6000_unwind_info_once ".gnu.linkonce.c6xabi.extab."
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#endif /* _ELF_TIC6X_H */
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