aboutsummaryrefslogtreecommitdiff
path: root/gas/dwarf2dbg.c
AgeCommit message (Collapse)AuthorFilesLines
2021-11-26gas: Update commit 4780e5e4933H.J. Lu1-1/+1
Update commit 4780e5e4933a2497a5aecc4ceabbbb8e82aaf822 Author: Tom de Vries <tdevries@suse.de> Date: Fri Nov 26 09:59:45 2021 +0100 [gas] Fix file 0 dir with -gdwarf-5 1. Replace i with j in for (j = 0; i < NUM_MD5_BYTES; ++j) 2. Pass -W to readelf to force CU: in output due to: if (do_wide || strlen (directory) < 76) printf (_("CU: %s/%s:\n"), directory, file_table[0].name); else printf ("%s:\n", file_table[0].name); PR gas/28629 * dwarf2dbg.c (out_dir_and_file_list): Fix a typo in commit 4780e5e4933. * testsuite/gas/elf/dwarf-5-nop-for-line-table.d: Pass -W to readelf.
2021-11-26[gas] Fix file 0 dir with -gdwarf-5Tom de Vries1-2/+8
In out_dir_and_file_list, if file 0 is copied from file 1, only the filename is copied, and the dir and md5 fields are left to their default values. Fix this by adding the copy of the dir and md5 fields. gas/ChangeLog: 2021-11-26 Tom de Vries <tdevries@suse.de> PR 28629 * dwarf2dbg.c (out_dir_and_file_list): When copying file 1 to file 0, also copy dir and md5 fields. * testsuite/gas/i386/dwarf5-line-4.d: Adjust expected output.
2021-11-15Deal with full path in .file 0 directiveEric Botcazou1-13/+31
Gas uses the directory part, if present, of the .file 0 directive to set entry 0 of the directory table in DWARF 5, which represents the "current directory". Now Gas also uses the file part of the same directive to set entry 0 of the file table, which represents the "current compilation file". But the latter need not be located in the former so GCC will use a full path in the file part when it is passed a full path: gcc -c /full/path/test.c -save-temps yields: .file 0 "/current/directory" "/full/path/test.c" in the assembly file and: The Directory Table (offset 0x22, lines 2, columns 1): Entry Name 0 (indirect line string, offset: 0x25): /current/directory 1 (indirect line string, offset: 0x38): /full/path The File Name Table (offset 0x30, lines 2, columns 2): Entry Dir Name 0 0 (indirect line string, offset: 0x43): /full/path/test.c in the object file. Note the full path and the questionable Dir value in the 0 entry of the file table.
2021-09-20Fix allocate_filenum last dir/file checksAlan Modra1-3/+3
* dwarf2dbg.c (allocate_filenum) Correct use of last_used_dir_len.
2021-09-20Re: PR28149, debug info with wrong file associationAlan Modra1-13/+23
Fixes segfaults when building aarch64-linux kernel, due to only doing part of the work necessary when allocating file numbers late. I'd missed looping over subsegments, which resulted in some u.filename entries left around and later interpreted as u.view. PR 28149 * dwarf2dbg.c (purge_generated_debug): Iterate over subsegs too. (dwarf2_finish): Call do_allocate_filenum for all subsegs too, in a separate loop before subsegs are chained.
2021-09-18PR28149 part 2, purge generated line infoAlan Modra1-1/+29
Mixing compiler generated line info with gas generated line info is generally just confusing. Also .loc directives with non-zero view fields might reference a previous .loc. It becomes a little more tricky to locate that previous .loc if there might be gas generated line info present too. Mind you, we turn off gas generation of line info on seeing compiler generated line info, so any reference back won't hit gas generated line info. At least, if the view info is sane. Unfortunately, gas needs to handle mangled source. PR 28149 * dwarf2dbg.c (purge_generated_debug): New function. (dwarf2_directive_filename): Call the above. (out_debug_line): Don't segfault after purging. * testsuite/gas/i386/dwarf2-line-4.d: Update expected output. * testsuite/gas/i386/dwarf4-line-1.d: Likewise. * testsuite/gas/i386/dwarf5-line-1.d: Likewise. * testsuite/gas/i386/dwarf5-line-2.d: Likewise.
2021-09-18PR28149, debug info with wrong file associationAlan Modra1-67/+85
gcc-11 and gcc-12 pass -gdwarf-5 to gas, in order to prime gas for DWARF 5 level debug info. Unfortunately it seems there are cases where the compiler does not emit a .file or .loc dwarf debug directive before any machine instructions. (Note that the .file directive typically emitted as the first line of assembly output doesn't count as a dwarf debug directive. The dwarf .file has a file number before the file name string.) This patch delays allocation of file numbers for gas generated line debug info until the end of assembly, thus avoiding any clashes with compiler generated file numbers. Two fixes for test case source are necessary; A .loc can't use a file number that hasn't already been specified with .file. A followup patch will remove all the gas generated line info on seeing a .file directive. PR 28149 * dwarf2dbg.c (num_of_auto_assigned): Delete. (current): Update initialisation. (set_or_check_view): Replace all accesses to view with u.view. (dwarf2_consume_line_info): Likewise. (dwarf2_directive_loc): Likewise. Assert that we aren't generating line info. (dwarf2_gen_line_info_1): Don't call set_or_check_view on gas generated line entries. (dwarf2_gen_line_info): Set and track filenames for gas generated line entries. Simplify generation of labels. (get_directory_table_entry): Use filename_cmp when comparing dirs. (do_allocate_filenum): New function. (dwarf2_where): Set u.filename and filenum to -1 for gas generated line entries. (dwarf2_directive_filename): Remove num_of_auto_assigned handling. (process_entries): Update view field access. Call do_allocate_filenum. * dwarf2dbg.h (struct dwarf2_line_info): Add filename field in union aliasing view. * testsuite/gas/i386/dwarf2-line-3.s: Add .file directive. * testsuite/gas/i386/dwarf2-line-4.s: Likewise. * testsuite/gas/i386/dwarf2-line-4.d: Update expected output. * testsuite/gas/i386/dwarf4-line-1.d: Likewise. * testsuite/gas/i386/dwarf5-line-1.d: Likewise. * testsuite/gas/i386/dwarf5-line-2.d: Likewise.
2021-09-09gas: Use the directory name in .file 0H.J. Lu1-4/+8
DWARF5 allows .file 0 to take an optional directory name. Set the entry 0 of the directory table to the directory name in .file 0. PR gas/28266 * dwarf2dbg.c (get_directory_table_entry): Add an argument for the directory name in .file 0 and use it, instead of PWD. (allocate_filenum): Pass NULL to get_directory_table_entry. (allocate_filename_to_slot): Pass the incoming dirname to get_directory_table_entry. * testsuite/gas/elf/dwarf-5-file0-2.d: New file. * testsuite/gas/elf/dwarf-5-file0-2.s: Likewise. * testsuite/gas/elf/elf.exp: Run dwarf-5-file0-2.
2021-08-09GAS: DWARF-5: Ensure that the 0'th entry in the directory table contains the ↵Nick Clifton1-9/+29
current working directory. * dwarf2dbg.c (get_directory_table_entry): Ensure that dir[0] contains current working directory. (out_dir_and_file_list): Likewise. * testsuite/gas/elf/dwarf-5-dir0.s: New test source file. * testsuite/gas/elf/dwarf-5-dir0.d: New test driver. * testsuite/gas/elf/elf.exp: Run the new test. * testsuite/gas/elf/dwarf-5-file0.d: Adjust expected output. * testsuite/gas/i386/dwarf5-line-1.d: Likewise. * testsuite/gas/i386/dwarf5-line-2.d: Likewise.
2021-04-05C99 gas configuryAlan Modra1-11/+0
Also remove alloca stuff since we don't use alloca in gas nowadays. * configure.ac: Don't check for string.h, strings.h, stdlib.h, errno.h, limits.h, locale.h or time.h. Don't check for unlink, remove, sbrk (unused) or setlocale. Adjust gas_test_headers. Don't check for errno, free, malloc, realoc, sbrk, strstr, getenv strstr, or vsnprintf declarations. (AC_ISC_POSIX, AC_FUNC_ALLOCA, AC_C_INLINE): Don't invoke. * as.h: Don't include alloca-conf.h, include config.h instead. Include string.h, stdlib.h, errno.h unconditionally. Remove various fallback declarations. * asintl.h: Don't test HAVE_LOCALE_H. * as.c: Don't test HAVE_SETLOCALE. * dwarf2dbg.c: Include limits.h unconditionally. * expr.c: Likewise. * sb.c: Likewise. * symbols.c: Likewise. * config/tc-cr16.c: Likewise. * config/tc-d30v.c: Likewise. * config/tc-i386.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-tic54x.c (tic54x_mlib): Call remove rather than unlink. * config.in: Regenerate. * configure: Regenerate. * Makefile.in: Regenerate. * doc/Makefile.in: Regenerate.
2021-04-01Use startswith in gas subfolder.Martin Liska1-1/+1
gas/ChangeLog: * as.c (select_emulation_mode): Use startswith. * config/m68k-parse.y: Likewise. * config/obj-aout.c (obj_aout_type): Likewise. * config/obj-elf.c (elf_common_parse): Likewise. (obj_elf_section_type): Likewise. (obj_elf_section_word): Likewise. (obj_elf_section): Likewise. (obj_elf_symver): Likewise. (adjust_stab_sections): Likewise. * config/obj-evax.c (evax_shorten_name): Likewise. * config/obj-macho.c (obj_mach_o_is_frame_section): Likewise. * config/tc-aarch64.c (parse_aarch64_imm_float): Likewise. (aarch64_parse_features): Likewise. (create_register_alias): Likewise. (aarch64_data_in_code): Likewise. (md_parse_option): Likewise. * config/tc-alpha.c (s_alpha_section_word): Likewise. (s_alpha_pdesc): Likewise. * config/tc-arc.c (tokenize_extregister): Likewise. * config/tc-arm.c (create_register_alias): Likewise. (create_neon_reg_alias): Likewise. (parse_ifimm_zero): Likewise. (parse_qfloat_immediate): Likewise. (arm_elf_section_type): Likewise. (arm_parse_extension): Likewise. (aeabi_set_public_attributes): Likewise. (s_arm_arch_extension): Likewise. (arm_data_in_code): Likewise. (start_unwind_section): Likewise. * config/tc-avr.c (avr_ldi_expression): Likewise. * config/tc-csky.c (is_freglist_legal): Likewise. (csky_s_section): Likewise. * config/tc-d30v.c (do_assemble): Likewise. * config/tc-dlx.c (parse_operand): Likewise. * config/tc-epiphany.c (md_assemble): Likewise. * config/tc-h8300.c (h8300_elf_section): Likewise. (get_operand): Likewise. * config/tc-hppa.c (pa_ip): Likewise. (pa_level): Likewise. (pa_space): Likewise. * config/tc-i386.c (i386_mach): Likewise. (md_assemble): Likewise. (check_VecOperations): Likewise. (i386_target_format): Likewise. (i386_elf_section_type): Likewise. * config/tc-ia64.c (start_unwind_section): Likewise. (md_parse_option): Likewise. (is_taken_branch): Likewise. (idesc->name,): Likewise. (note_register_values): Likewise. (do_alias): Likewise. * config/tc-m32c.c (insn_to_subtype): Likewise. * config/tc-m68hc11.c (get_operand): Likewise. (md_assemble): Likewise. * config/tc-m68k.c (m68k_ip): Likewise. (m68k_elf_suffix): Likewise. * config/tc-mcore.c (mcore_s_section): Likewise. * config/tc-metag.c (parse_get_set): Likewise. (md_parse_option): Likewise. * config/tc-microblaze.c (parse_imm): Likewise. (check_got): Likewise. (md_apply_fix): Likewise. * config/tc-mips.c (CPU_HAS_MIPS16): Likewise. (md_begin): Likewise. (s_is_linkonce): Likewise. (check_regno): Likewise. (match_float_constant): Likewise. (classify_vr4120_insn): Likewise. (match_insn): Likewise. (mips_after_parse_args): Likewise. (s_change_sec): Likewise. (s_option): Likewise. (parse_code_option): Likewise. (md_section_align): Likewise. (nopic_need_relax): Likewise. * config/tc-mmix.c (mmix_handle_mmixal): Likewise. * config/tc-mn10300.c (mn10300_fix_adjustable): Likewise. (mn10300_end_of_match): Likewise. * config/tc-msp430.c (msp430_make_init_symbols): Likewise. * config/tc-nds32.c (nds32_parse_option): Likewise. * config/tc-nds32.h (md_do_align): Likewise. * config/tc-nios2.c (strprefix): Likewise. (nios2_special_relocation_p): Likewise. (nios2_parse_base_register): Likewise. (nios2_cons): Likewise. * config/tc-ns32k.c (addr_mode): Likewise. * config/tc-pdp11.c (set_option): Likewise. (parse_reg): Likewise. (parse_ac5): Likewise. (parse_op_no_deferred): Likewise. (set_cpu_model): Likewise. (set_machine_model): Likewise. * config/tc-pj.c (md_operand): Likewise. * config/tc-ppc.c (ppc_set_cpu): Likewise. (ppc_arch): Likewise. (ppc_section_type): Likewise. * config/tc-s12z.c (tb_reg_rel): Likewise. (tb_opr_rel): Likewise. * config/tc-s390.c (s390_parse_cpu): Likewise. (md_parse_option): Likewise. * config/tc-score.c (s3_nopic_need_relax): Likewise. (s3_pic_need_relax): Likewise. * config/tc-score7.c (s7_nopic_need_relax): Likewise. (s7_pic_need_relax): Likewise. * config/tc-sh.h (SUB_SEGMENT_ALIGN): Likewise. * config/tc-sparc.c (md_parse_option): Likewise. (sparc_ip): Likewise. (s_reserve): Likewise. (s_common): Likewise. (s_seg): Likewise. (sparc_cons): Likewise. * config/tc-tic54x.c (stag_add_field): Likewise. (tic54x_endstruct): Likewise. * config/tc-tic6x.c (tic6x_start_unwind_section): Likewise. * config/tc-v850.c (v850_comm): Likewise. (md_begin): Likewise. (md_assemble): Likewise. * config/tc-vax.c (vax_cons): Likewise. * config/tc-wasm32.c (wasm32_leb128): Likewise. * config/tc-xstormy16.c (md_operand): Likewise. * config/tc-xtensa.c (get_directive): Likewise. (xg_instruction_matches_option_term): Likewise. (is_unaligned_label): Likewise. (cache_literal_section): Likewise. * config/xtensa-relax.c (parse_precond): Likewise. (parse_option_cond): Likewise. (transition_applies): Likewise. (wide_branch_opcode): Likewise. * dw2gencfi.c: Likewise. * dwarf2dbg.c (dwarf2_directive_filename): Likewise. * ehopt.c (get_cie_info): Likewise. * input-file.c (input_file_open): Likewise. * listing.c (listing_newline): Likewise. (debugging_pseudo): Likewise. * read.c (read_a_source_file): Likewise. * write.c (adjust_reloc_syms): Likewise. (compress_debug): Likewise. (maybe_generate_build_notes): Likewise.
2021-03-31Use bool in gasAlan Modra1-38/+38
* as.h (POISON_BFD_BOOLEAN): Define. * as.c, * as.h, * atof-generic.c, * config/atof-ieee.c, * config/bfin-aux.h, * config/obj-coff.c, * config/obj-ecoff.c, * config/obj-elf.c, * config/obj-elf.h, * config/obj-som.c, * config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c, * config/tc-arc.h, * config/tc-arm.c, * config/tc-arm.h, * config/tc-avr.c, * config/tc-avr.h, * config/tc-bfin.c, * config/tc-bfin.h, * config/tc-bpf.c, * config/tc-cris.c, * config/tc-csky.c, * config/tc-csky.h, * config/tc-d10v.c, * config/tc-d10v.h, * config/tc-d30v.c, * config/tc-d30v.h, * config/tc-dlx.c, * config/tc-dlx.h, * config/tc-epiphany.c, * config/tc-epiphany.h, * config/tc-fr30.c, * config/tc-fr30.h, * config/tc-frv.c, * config/tc-frv.h, * config/tc-ft32.c, * config/tc-ft32.h, * config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386-intel.c, * config/tc-i386.c, * config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c, * config/tc-iq2000.h, * config/tc-lm32.c, * config/tc-lm32.h, * config/tc-m32c.c, * config/tc-m32c.h, * config/tc-m32r.c, * config/tc-m32r.h, * config/tc-m68hc11.c, * config/tc-m68k.c, * config/tc-mcore.c, * config/tc-mcore.h, * config/tc-mep.c, * config/tc-mep.h, * config/tc-metag.c, * config/tc-metag.h, * config/tc-microblaze.c, * config/tc-mips.c, * config/tc-mips.h, * config/tc-mmix.c, * config/tc-mn10200.c, * config/tc-mn10300.c, * config/tc-mn10300.h, * config/tc-moxie.c, * config/tc-msp430.c, * config/tc-msp430.h, * config/tc-mt.c, * config/tc-mt.h, * config/tc-nds32.c, * config/tc-nds32.h, * config/tc-nios2.c, * config/tc-ns32k.c, * config/tc-or1k.c, * config/tc-or1k.h, * config/tc-pdp11.c, * config/tc-ppc.c, * config/tc-pru.c, * config/tc-pru.h, * config/tc-riscv.c, * config/tc-riscv.h, * config/tc-rx.c, * config/tc-rx.h, * config/tc-s12z.c, * config/tc-s12z.h, * config/tc-s390.c, * config/tc-score.c, * config/tc-score.h, * config/tc-score7.c, * config/tc-sh.c, * config/tc-sh.h, * config/tc-spu.c, * config/tc-tic54x.c, * config/tc-tic6x.c, * config/tc-tic6x.h, * config/tc-tilegx.c, * config/tc-tilepro.c, * config/tc-v850.c, * config/tc-v850.h, * config/tc-visium.c, * config/tc-visium.h, * config/tc-wasm32.c, * config/tc-wasm32.h, * config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c, * config/tc-xstormy16.h, * config/tc-xtensa.c, * config/tc-xtensa.h, * config/tc-z80.c, * config/tc-z8k.c, * config/xtensa-istack.h, * config/xtensa-relax.c, * config/xtensa-relax.h, * dw2gencfi.c, * dwarf2dbg.c, * dwarf2dbg.h, * expr.c, * expr.h, * frags.c, * frags.h, * listing.c, * macro.c, * output-file.c, * read.c, * read.h, * stabs.c, * symbols.c, * write.c: Replace bfd_boolean with bool, FALSE with false, and TRUE with true.
2021-02-16PR27426, More bugs in dwarf2dbg.cAlan Modra1-3/+11
PR 27426 * dwarf2dbg.c (allocate_filename_to_slot): Allocate the dirs array in another place.
2021-02-08Fix an illegal memory access when parsing a corrupt assembler file.Nick Clifton1-2/+10
PR 27355 * dwarf2dbg.c (allocate_filename_to_slot): Allocate the dirs array if it has not already been created.
2021-01-21PR27221, 058430b4a1 warnings while assembling the Linux kernelAlan Modra1-2/+3
PR 27221 * dwarf2dbg.c (dwarf2_gen_line_info_1): Don't warn about ignored line number info when gas is generating it. * testsuite/gas/elf/dwarf2-20.d: Adjust to not expect warnings. * testsuite/gas/m68hc11/indexed12.d: Likewise. * testsuite/gas/elf/elf.exp: Don't run warn-2. * gas/testsuite/gas/elf/warn-2.s: Delete.
2021-01-21PR27218, memory access violation in dwarf2dbg.cAlan Modra1-13/+13
PR 27218 * dwarf2dbg.c (dwarf2_gen_line_info): Correct setting of dwarf_level. (dwarf2_directive_filename, dwarf2_directive_loc): Likewise, and error for negative file numbers.
2021-01-18as: Automatically enable DWARF5 supportH.J. Lu1-6/+18
Currently $ as -o x.o x.s fails when x.s contains DWARF5 ".file 0" or ".loc 0" directives. Update assembler to automatically enable DWARF5 support so that $ gcc -S -g -c x.c $ gcc -c x.s works. PR gas/27195 * dwarf2dbg.c (dwarf2_gen_line_info): Set dwarf_level to 5 if needed. (dwarf2_directive_filename): Likewise. (dwarf2_directive_loc): Likewise. * testsuite/gas/elf/dwarf-5-file0.d: Pass --gdwarf-3. * testsuite/gas/lns/lns-diag-1.l: Remove the "Error: file number less than one" errors.
2021-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2020-11-18Re: Stop Gas from generating line info or address rangesAlan Modra1-7/+9
* doc/as.texi (.nop): Document optional size arg. * dwarf2dbg.c (dwarf2_gen_line_info_1): Only check SEC_ALLOC when ELF. Warn whenever dwarf line number information is ignored. * frags.c (frag_offset_ignore_align_p): New function. * frags.h (frag_offset_ignore_align_p): Declare. * read.c (s_nop): Extend to support optional size arg. * testsuite/gas/elf/dwarf2-20.d: Expect warnings, and exact range. * testsuite/gas/elf/dwarf2-20.s: Emit 16 bytes worth of nops. * testsuite/gas/m68hc11/indexed12.d: Expect warnings.
2020-11-12Stop Gas from generating line info or address ranges for sections that do ↵Nick Clifton1-4/+14
not contain code or are not loaded. PR 26850 * dwarf2dbg.c (dwarf2_gen_line_info_1): Do not record lines in sections that are not executable or not loadable. (out_debug_line): Move warning message into dwarf2_gen_line_info_1. * testsuite/gas/elf/dwarf2-20.s: New test. * testsuite/gas/elf/dwarf2-20.d: New test driver. * testsuite/gas/elf/elf.exp: Run the new test. * testsuite/gas/elf/warn-2.s: Use the .nop directive.
2020-10-26gas: Clear all auto-assigned file slotsH.J. Lu1-11/+13
Since a file slot is auto-assigned for the #APP marker appeared before the first .file <NUMBER> directive has been seen, clear all auto-assigned file slots when seeing the first .file <NUMBER> directive. PR gas/26778 * * dwarf2dbg.c (num_of_auto_assigned): New. (allocate_filenum): Increment num_of_auto_assigned. (dwarf2_directive_filename): Clear the slots auto-assigned before the first .file <NUMBER> directive was seen. * testsuite/gas/i386/dwarf4-line-1.d: New file. * testsuite/gas/i386/dwarf4-line-1.s: Likewise. * testsuite/gas/i386/i386.exp: Run dwarf4-line-1.
2020-10-17gas: Always use as_where for preprocessed assembly codesH.J. Lu1-19/+24
Always clear the slot 1 if it was assigned to the input file before the first .file <NUMBER> directive has been seen. Always use as_where to generate the correct debug infor for preprocessed assembly codes. PR gas/25878 PR gas/26740 * dwarf2dbg.c (allocate_filename_to_slot): Don't reuse the slot 1 here. (dwarf2_where): Restore as_where. (dwarf2_directive_filename): Clear the slot 1 if it was assigned to the input file. * testsuite/gas/i386/dwarf5-line-2.d: New file. * testsuite/gas/i386/dwarf5-line-2.s: Likewise. * testsuite/gas/i386/dwarf5-line-3.d: Likewise. * testsuite/gas/i386/dwarf5-line-3.s: Likewise. * testsuite/gas/i386/i386.exp: Run dwarf5-line-2 and dwarf5-line-3.
2020-10-16gas: Reuse the input file entry in the file tableH.J. Lu1-18/+10
Some instructions can be emitted (dwarf2_emit_insn is called) before the first .file <NUMBER> directive has been seen, which allocates the input file as the first file entry. Reuse the input file entry in the file table. PR gas/25878 PR gas/26740 * dwarf2dbg.c (file_entry): Remove auto_assigned. (assign_file_to_slot): Remove the auto_assign argument. (allocate_filenum): Updated. (allocate_filename_to_slot): Reuse the input file entry in the file table. (dwarf2_where): Replace as_where with as_where_physical. * testsuite/gas/i386/dwarf5-line-1.d: New file. * testsuite/gas/i386/dwarf5-line-1.s: Likewise. * testsuite/gas/i386/i386.exp: Run dwarf5-line-1.
2020-09-11gas: Don't error when .debug_line already exists, unless .loc was usedMark Wielaard1-8/+21
When -g was used to generate DWARF gas would error out when a .debug_line already exists. But when a .debug_info section already exists it would simply skip generating one without warning or error. Do the same for .debug_line. It is only an error when the user explicitly uses .loc directives and also generates the .debug_line table itself. The tests are unfortunately arch specific because the line table is only generated when actual instructions have been emitted. Use i386 because that is probably the most used architecture. Before this patch the new dwarf-line-2 testcase would fail, with this patch it succeeds (and doesn't try to add its own line table). gas/ChangeLog: * as.texi (-g): Explicitly mention when .debug_info and .debug_line are generated for the DWARF format. (Loc): Add that it is an error to both use a .loc directive and generate a .debug_line yourself. * dwarf2dbg.c (dwarf2_any_loc_directive_seen): New static variable. (dwarf2_directive_loc): Set dwarf2_any_loc_directive_seen to TRUE. (dwarf2_finish): Check dwarf2_any_loc_directive_seen before emitting an error. Only create .debug_line if it is empty (or doesn't exist). * testsuite/gas/i386/i386.exp: Add dwarf2-line-{1,2,3,4} when testing an elf target. * testsuite/gas/i386/dwarf2-line-{1,2,3,4}.{s,d,l}: New test files.
2020-09-07gas: Output directory and file names in .debug_line_str for DWARF5Mark Wielaard1-17/+65
* dwarf2dbg.c (add_line_strp): New function. (out_dir_and_file_list): Take line_seg and sizeof_offset as arguments, Use DW_FORM_line_strp for dir and file. Call add_line_strp and set symbol offset for DWARF2_LINE_VERSION 5. (out_debug_line): Call out_dir_and_file_list with line_seg and sizeof_offset. * gas/testsuite/gas/elf/dwarf-5-file0.d: Expect indirect line strings.
2020-09-07gas: Output .debug_rnglists for DWARF 5.Mark Wielaard1-13/+85
* dwarf2dbg.c (DWARF2_RNGLISTS_VERSION): New constant. (out_debug_ranges): Add ranges_sym argument and set it. (out_debug_rnglists): New function. (out_debug_info): Change ranges_seg argument to ranges_sym and use it to set DW_AT_ranges value. (dwarf2_finish): Remove ranges_seg, add ranges_sym. For DWARF2_VERSION 5 call out_debug_rnglists.
2020-09-07gas: Make sure to only add an md5 to a .file when requested.Mark Wielaard1-1/+1
* dwarf2dbg.c (dwarf2_directive_filename): Initialize with_md5 to FALSE. * gas/testsuite/gas/elf/dwarf-5-file0.s: Add a random bignum.
2020-09-03gas: Use DW_FORM_sec_offset for DWARF version 4 or higher.Mark Wielaard1-9/+11
Older DWARF versions used DW_FORM_data4 or DW_FORM_data8 for offsets into sections for e.g. DW_AT_stmt_list ot DW_AT_ranges. But version 4 introduced a dedicated form for such section offsets. Make sure to emit the proper form for newer DWARF versions. gas/ChangeLog: * dwarf2dbg.c (out_debug_abbrev): Use DW_FORM_sec_offset for DWARF version 4 or higher.
2020-08-21Rearrange symbol_create parametersAlan Modra1-9/+9
These functions take an offset within frag, frag within section, and section parameter. So it makes sense to order the parameters as section, frag, offset. * symbols.h (symbol_new, symbol_create, local_symbol_make), (symbol_temp_new): Arrange params as section, frag, offset. * symbols.c: Adjust to suit. * as.c: Likewise. * cgen.c: Likewise. * dwarf2dbg.c: Likewise. * ecoff.c: Likewise. * expr.c: Likewise. * itbl-ops.c: Likewise. * read.c: Likewise. * stabs.c: Likewise. * subsegs.c: Likewise. * config/obj-coff.c: Likewise. * config/obj-elf.c: Likewise. * config/obj-macho.c: Likewise. * config/tc-aarch64.c: Likewise. * config/tc-alpha.c: Likewise. * config/tc-arc.c: Likewise. * config/tc-arm.c: Likewise. * config/tc-avr.c: Likewise. * config/tc-cr16.c: Likewise. * config/tc-cris.c: Likewise. * config/tc-csky.c: Likewise. * config/tc-dlx.c: Likewise. * config/tc-hppa.c: Likewise. * config/tc-i386.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-m32r.c: Likewise. * config/tc-m68k.c: Likewise. * config/tc-mips.c: Likewise. * config/tc-mmix.c: Likewise. * config/tc-mn10200.c: Likewise. * config/tc-mn10300.c: Likewise. * config/tc-nds32.c: Likewise. * config/tc-nios2.c: Likewise. * config/tc-ppc.c: Likewise. * config/tc-riscv.c: Likewise. * config/tc-s390.c: Likewise. * config/tc-sh.c: Likewise. * config/tc-tic4x.c: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-xtensa.c: Likewise.
2020-08-04gas: Use udata for DW_AT_high_pc when emitting DWARF4Mark Wielaard1-3/+5
For DWARF4 DW_AT_high_pc can be expressed as constant offset from DW_AT_low_pc which saves a relocation. Use DW_FORM_udate (uleb128) to keep the constant value as small as possible. gas/ChangeLog: * dwarf2dbg.c (out_debug_abbrev): When DWARF2_VERSION >= 4, use DW_FORM_udata for DW_AT_high_pc. (out_debug_info): Use emit_leb128_expr for DW_AT_high_pc, when DWARF2_VERSION >= 4. * read.c (emit_leb128_exp): No longer static. * read.h (emit_leb128_exp): Define.
2020-08-04gas: Make sure .debug_line file table contains a zero filename and dirMark Wielaard1-9/+26
For DWARF5 the zero file list entry in the .debug_line table represents the compile unit main file. It can be set with .file 0 when -gdwarf-5 is given. But since this directive is illegal for older versions, this is almost never set. To make sure it is always set (so DW_AT_name of the compile unit can be set) use file (and dir) 1 if that is defined (otherwise fall back to pwd, to match DW_AT_comp_dir). gas/ChangeLog: * gas/dwarf2dbg.c (out_dir_and_file_list): For DWARF5 emit at least one directory if there is at least one file. Use dirs[1] if dirs[0] is not set, or if there is no dirs[1] the current working directory. Use files[1] filename, when files[0] filename isn't set.
2020-08-04gas: Fix .debug_info CU header for --gdwarf-5Mark Wielaard1-2/+16
DWARF5 CU headers have a new unit type field and move the abbrev offset to the end of the header. gas/ChangeLog: * dwarf2dbg.c (out_debug_info): Emit unit type and abbrev offset for DWARF5. * gas/testsuite/gas/elf/dwarf-4-cu.d: New file. * gas/testsuite/gas/elf/dwarf-4-cu.s: Likewise. * gas/testsuite/gas/elf/dwarf-5-cu.d: Likewise. * gas/testsuite/gas/elf/dwarf-5-cu.s: Likewise. * testsuite/gas/elf/elf.exp: Run dwarf-4-cu and dwarf-5-cu.
2020-05-05Restore readelf's warnings that describe real problems with the file being ↵Nick Clifton1-0/+5
examined. Fix bug displaying empty file name tables. binutils* dwarf.c (do_checks): New global variable. (display_formatted_table): Warn about an unexpected number of columns in the table, if checks are enabled. Do not complain about the lack of data following the number of entries in the table if the table is empty. (display_debug_lines_decoded): Only warn about an unexpected number of columns in a table if checks are enabled. * dwarf.h (do_checks): Add a prototype. * elfcomm.c (error): Remove weak attribute. (warn): Likewise. * readelf.c (do_checks): Delete. (warn): Delete. (process_section_headers): Only warn about empty sections if checks are enabled. gas * dwarf2dbg.c (out_dir_and_file_list): Add comments describing the construction of a DWARF-5 directory name table. * testsuite/gas/elf/pr25917.d: Update expected output.
2020-05-04GAS: Do not create an entry for the default directory if the directory table ↵Nick Clifton1-4/+1
is empty. Improve readelf's decoding of empty directory and file name tables. PR 25917 * dwarf.c (display_debug_lines_decoded): Warn if encountering a supicious number of entries for DWARF-5 format directory and file name tables. Do not display file name table header if the table is empty. Do not allocate space for empty tables.
2020-05-04Fix an illegal memory access in the assembler when generating a DWARF5 ↵Nick Clifton1-1/+1
file/directory table with no entries. PR 25917 * dwarf2dbg.c (out_dir_and_file_list): Check for the directory table's existence before looking at its entries. * testsuite/gas/elf/pr25917.s: New test source file. * testsuite/gas/elf/pr25917.d: New test driver. * testsuite/gas/elf/elf.exp (run_elf_list_test): Run the new test.
2020-04-27GAS: Allow automatically assigned entries in the file table to be reassigned ↵Nick Clifton1-51/+60
if the source file specifically requests to use the assigned slot. PR 25878 * dwarf2dbg.c (struct file_entry): Add auto_assigned field. (assign_file_to_slot): New function. Fills in an entry in the files table. (allocate_filenum): Use new function. (allocate_filename_to_slot): Use new function. If the specified slot entry is already in use, but was chosen automatically then reassign the automatic entry.
2020-03-31PR 25611, PR 25614: GAS: Remove a double inclusion of "bignum.h"Maciej W. Rozycki1-1/+0
Correct an issue with commit 5496f3c635dc ("Add support for generating DWARF-5 format directory and file name tables from the assembler.") and remove a duplicate direct inclusion of "bignum.h" from dwarf2dbg.c that causes a GAS compilation error: In file included from .../gas/dwarf2dbg.c:33: .../gas/bignum.h:42: error: redefinition of typedef 'LITTLENUM_TYPE' .../gas/bignum.h:42: error: previous declaration of 'LITTLENUM_TYPE' was here make[4]: *** [dwarf2dbg.o] Error 1 with some GCC versions, as this header has been already included via "as.h" and then "flonum.h". gas/ PR 25611 PR 25614 * dwarf2dbg.c: Do not include "bignum.h".
2020-03-11Add support for generating DWARF-5 format directory and file name tables ↵Nick Clifton1-148/+535
from the assembler. PR 25611 PR 25614 * dwarf.h (DWARF2_Internal_LineInfo): Add li_address_size and li_segment_size fields. * dwarf.c (read_debug_line_header): Record the address size and segment selector size values (if present) in the lineinfo structure. (display_formatted_table): Warn if the format count is empty but the table itself is not empty. Display the format count and entry count at the start of the table dump. (display_debug_lines_raw): Display the address size and segement selector size fields, if present. * testsuite/binutils-all/dw5.W: Update expected output. gas * dwarf2dbg.c (DWARF2_FILE_TIME_NAME): Default to -1. (DWARF2_FILE_SIZE_NAME): Default to -1. (DWARF2_LINE_VERSION): Default to the current dwarf level or 3, whichever is higher. (DWARF2_LINE_MAX_OPS_PER_INSN): Provide a default value of 1. (NUM_MD5_BYTES): Define. (struct file entry): Add md5 field. (get_filenum): Delete and replace with... (get_basename): New function. (get_directory_table_entry): New function. (allocate_filenum): New function. (allocate_filename_to_slot): New function. (dwarf2_where): Use new functions. (dwarf2_directive_filename): Add support for extended .file pseudo-op. (dwarf2_directive_loc): Allow the use of file number zero with DWARF 5 or higher. (out_file_list): Rename to... (out_dir_and_file_list): Add DWARF 5 support. (out_debug_line): Emit extra values into the section header for DWARF 5. (out_debug_str): Allow for file 0 to be used with DWARF 5. * doc/as.texi (.file): Update the description of this pseudo-op. * testsuite/gas/elf-dwarf-5-file0.s: Add more lines. * testsuite/gas/elf-dwarf-5-file0.d: Update expected dump output. * testsuite/gas/lns/lns-diag-1.l: Update expected error message. * NEWS: Mention the new feature.
2020-03-06Add support for a ".file 0" directive if supporting DWARF 5 or higher.Nick Clifton1-6/+16
PR 25614 * dwarf2dbg.c (dwarf2_directive_filename): Allow a file number of 0 if the dwarf_level is 5 or more. Complain if a filename follows a file 0. * testsuite/gas/elf/dwarf-5-file0.s: New test. * testsuite/gas/elf/dwarf-5-file0.d: New test driver. * testsuite/gas/elf/elf.exp: Run the new test. PR 25612 * config/tc-ia64.h (DWARF2_VERISION): Fix typo. * doc/as.texi: Fix another typo.
2020-03-06Add support for --dwarf-[3|4|5] to assembler command line.Nick Clifton1-1/+1
PR 25612 * as.c (dwarf_level): Define. (show_usage): Add --gdwarf-3, --gdwarf-4 and --gdwarf-5. (parse_args): Add support for the new options. as.h (dwarf_level): Prototype. * dwarf2dbg.c (DWARF2_VERSION): Use dwarf_level as default version value. * config/tc-ia64.h (DWARF2_VERISION): Update definition. (DWARF2_LINE_VERSION): Remove definition. * doc/as.texi: Document the new options.
2020-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2019-11-28gas/riscv: Produce version 3 DWARF CIE by defaultAndrew Burgess1-0/+11
The flag controlling the default DWARF CIE version to produce now starts with the value -1. This can be modified with the command line flag as before, but after command line flag processing, in md_after_parse_args targets can, if the global still has the value -1, override this value. This gives a target specific default. If a CIE version is not select either by command line flag, or a target specific default, then some new code in dwarf2_init now select a global default. This remains as version 1 to match previous behaviour. This RISC-V has a target specific default of version provided, this make the return column uleb128, which means we can use all DWARF registers include CSRs. I chose to switch to version 3 rather than version 4 as this is most similar to the global default (version 1). Switching to version 4 adds additional columns to the CIE header. gas/ChangeLog: * as.c (flag_dwarf_cie_version): Change initial value to -1, and update comment. * config/tc-riscv.c (riscv_after_parse_args): Set flag_dwarf_cie_version if it has not already been set. * dwarf2dbg.c (dwarf2_init): Initialise flag_dwarf_cie_version if needed. * testsuite/gas/riscv/default-cie-version.d: New file. * testsuite/gas/riscv/default-cie-version.s: New file. ld/ChangeLog: * testsuite/ld-elf/eh5.d: Accept version 3 DWARF CIE. Change-Id: Ibbfe8f0979fba480bf0a359978b09d2b3055555e
2019-11-25Introduce new section flag: SEC_ELF_OCTETSChristian Eggers1-7/+12
All symbols, sizes and relocations in this section are octets instead of bytes. Required for DWARF debug sections as DWARF information is organized in octets, not bytes. bfd/ * section.c (struct bfd_section): New flag SEC_ELF_OCTETS. * archures.c (bfd_octets_per_byte): New parameter sec. If section is not NULL and SEC_ELF_OCTETS is set, one octet es returned [ELF targets only]. * bfd.c (bfd_get_section_limit): Provide section parameter to bfd_octets_per_byte. * bfd-in2.h: regenerate. * binary.c (binary_set_section_contents): Move call to bfd_octets_per_byte into section loop. Provide section parameter to bfd_octets_per_byte. * coff-arm.c (coff_arm_reloc): Provide section parameter to bfd_octets_per_byte. * coff-i386.c (coff_i386_reloc): likewise. * coff-mips.c (mips_reflo_reloc): likewise. * coff-x86_64.c (coff_amd64_reloc): likewise. * cofflink.c (_bfd_coff_link_input_bfd): likewise. (_bfd_coff_reloc_link_order): likewise. * elf.c (_bfd_elf_section_offset): likewise. (_bfd_elf_make_section_from_shdr): likewise. Set SEC_ELF_OCTETS for sections with names .gnu.build.attributes, .debug*, .zdebug* and .note.gnu*. * elf32-msp430.c (rl78_sym_diff_handler): Provide section parameter to bfd_octets_per_byte. * elf32-nds.c (nds32_elf_get_relocated_section_contents): likewise. * elf32-ppc.c (ppc_elf_addr16_ha_reloc): likewise. * elf32-pru.c (pru_elf32_do_ldi32_relocate): likewise. * elf32-s12z.c (opru18_reloc): likewise. * elf32-sh.c (sh_elf_reloc): likewise. * elf32-spu.c (spu_elf_rel9): likewise. * elf32-xtensa.c (bfd_elf_xtensa_reloc): likewise * elf64-ppc.c (ppc64_elf_brtaken_reloc): likewise. (ppc64_elf_addr16_ha_reloc): likewise. (ppc64_elf_toc64_reloc): likewise. * elflink.c (bfd_elf_final_link): likewise. (bfd_elf_perform_complex_relocation): likewise. (elf_fixup_link_order): likewise. (elf_link_input_bfd): likewise. (elf_link_sort_relocs): likewise. (elf_reloc_link_order): likewise. (resolve_section): likewise. * linker.c (_bfd_generic_reloc_link_order): likewise. (bfd_generic_define_common_symbol): likewise. (default_data_link_order): likewise. (default_indirect_link_order): likewise. * srec.c (srec_set_section_contents): likewise. (srec_write_section): likewise. * syms.c (_bfd_stab_section_find_nearest_line): likewise. * reloc.c (_bfd_final_link_relocate): likewise. (bfd_generic_get_relocated_section_contents): likewise. (bfd_install_relocation): likewise. For section which have SEC_ELF_OCTETS set, multiply output_base and output_offset with bfd_octets_per_byte. (bfd_perform_relocation): likewise. include/ * coff/ti.h (GET_SCNHDR_SIZE, PUT_SCNHDR_SIZE, GET_SCN_SCNLEN), (PUT_SCN_SCNLEN): Adjust bfd_octets_per_byte calls. binutils/ * objdump.c (disassemble_data): Provide section parameter to bfd_octets_per_byte. (dump_section): likewise (dump_section_header): likewise. Show SEC_ELF_OCTETS flag if set. gas/ * as.h: Define SEC_OCTETS as SEC_ELF_OCTETS if OBJ_ELF. * dwarf2dbg.c: (dwarf2_finish): Set section flag SEC_OCTETS for .debug_line, .debug_info, .debug_abbrev, .debug_aranges, .debug_str and .debug_ranges sections. * write.c (maybe_generate_build_notes): Set section flag SEC_OCTETS for .gnu.build.attributes section. * frags.c (frag_now_fix): Don't divide by OCTETS_PER_BYTE if SEC_OCTETS is set. * symbols.c (resolve_symbol_value): Likewise. ld/ * ldexp.c (fold_name): Provide section parameter to bfd_octets_per_byte. * ldlang (init_opb): New argument s. Set opb_shift to 0 if SEC_ELF_OCTETS for the current section is set. (print_input_section): Pass current section to init_opb. (print_data_statement,print_reloc_statement, print_padding_statement): Likewise. (lang_check_section_addresses): Call init_opb for each section. (lang_size_sections_1,lang_size_sections_1, lang_do_assignments_1): Likewise. (lang_process): Pass NULL to init_opb.
2019-11-25Reverts patches providing octet support in dwarfChristian Eggers1-31/+8
Reverts "dwarf2: Align relocation within .debug_line section" commit 204f543cae7a5dc908264b49d558191d0ceb989c, Reverts "dwarf2: Pad size of .debug_line section." commit 145c4477d239fef4e31a457ff8a1ba7153e9a448, Reverts "dwarf2: Use octets for .debug_line prologue" commit 38c24f42c97af59ad83505ed735e689c63d3ca45, Mostly reverts "dwarf2: Use octets for dwarf2 headers" commit 7235427998571b6d8267e7ac72a52d7b082f4c2b, Mostly reverts "Symbols with octets value" commit d18d199917337537713f9fc4b7ae4d6568f740cf. * dwarf2dbg.c (out_set_addr): Revert 2019-03-13 change. (out_debug_line, out_debug_aranges, out_debug_info): Likewise. * symbols.h (symbol_set_value_now_octets, symbol_octets_p): Remove. * symbols.c (struct symbol_flags): Remove member sy_octets. (symbol_temp_new_now_octets): Don't set symbol_flags::sy_octets. (resolve_symbol_value): Revert: Return octets instead of bytes if sy_octets is set. (symbol_set_value_now_octets): Remove. (symbol_octets_p): Remove.
2019-09-19bfd_section_* macrosAlan Modra1-14/+9
This large patch removes the unnecessary bfd parameter from various bfd section macros and functions. The bfd is hardly ever used and if needed for the bfd_set_section_* or bfd_rename_section functions can be found via section->owner except for the com, und, abs, and ind std_section special sections. Those sections shouldn't be modified anyway. The patch also removes various bfd_get_section_<field> macros, replacing their use with bfd_section_<field>, and adds bfd_set_section_lma. I've also fixed a minor bug in gas where compressed section renaming was done directly rather than calling bfd_rename_section. This would have broken bfd_get_section_by_name and similar functions, but that hardly mattered at such a late stage in gas processing. bfd/ * bfd-in.h (bfd_get_section_name, bfd_get_section_vma), (bfd_get_section_lma, bfd_get_section_alignment), (bfd_get_section_size, bfd_get_section_flags), (bfd_get_section_userdata): Delete. (bfd_section_name, bfd_section_size, bfd_section_vma), (bfd_section_lma, bfd_section_alignment): Lose bfd parameter. (bfd_section_flags, bfd_section_userdata): New. (bfd_is_com_section): Rename parameter. * section.c (bfd_set_section_userdata, bfd_set_section_vma), (bfd_set_section_alignment, bfd_set_section_flags, bfd_rename_section), (bfd_set_section_size): Delete bfd parameter, rename section parameter. (bfd_set_section_lma): New. * bfd-in2.h: Regenerate. * mach-o.c (bfd_mach_o_init_section_from_mach_o): Delete bfd param, update callers. * aoutx.h, * bfd.c, * coff-alpha.c, * coff-arm.c, * coff-mips.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * compress.c, * ecoff.c, * elf-eh-frame.c, * elf-hppa.h, * elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-properties.c, * elf-s390-common.c, * elf-vxworks.c, * elf.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-csky.c, * elf32-d10v.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c, * elf32-ppc.c, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c, * elf32-v850.c, * elf32-vax.c, * elf32-visium.c, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-bpf.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c, * elflink.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * i386msdos.c, * linker.c, * mach-o.c, * mmo.c, * opncls.c, * pdp11.c, * pei-x86_64.c, * peicode.h, * reloc.c, * section.c, * syms.c, * vms-alpha.c, * xcofflink.c: Update throughout for bfd section macro and function changes. binutils/ * addr2line.c, * bucomm.c, * coffgrok.c, * dlltool.c, * nm.c, * objcopy.c, * objdump.c, * od-elf32_avr.c, * od-macho.c, * od-xcoff.c, * prdbg.c, * rdcoff.c, * rddbg.c, * rescoff.c, * resres.c, * size.c, * srconv.c, * strings.c, * windmc.c: Update throughout for bfd section macro and function changes. gas/ * as.c, * as.h, * dw2gencfi.c, * dwarf2dbg.c, * ecoff.c, * read.c, * stabs.c, * subsegs.c, * subsegs.h, * write.c, * config/obj-coff-seh.c, * config/obj-coff.c, * config/obj-ecoff.c, * config/obj-elf.c, * config/obj-macho.c, * config/obj-som.c, * config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c, * config/tc-arm.c, * config/tc-avr.c, * config/tc-bfin.c, * config/tc-bpf.c, * config/tc-d10v.c, * config/tc-d30v.c, * config/tc-epiphany.c, * config/tc-fr30.c, * config/tc-frv.c, * config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386.c, * config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c, * config/tc-lm32.c, * config/tc-m32c.c, * config/tc-m32r.c, * config/tc-m68hc11.c, * config/tc-mep.c, * config/tc-microblaze.c, * config/tc-mips.c, * config/tc-mmix.c, * config/tc-mn10200.c, * config/tc-mn10300.c, * config/tc-msp430.c, * config/tc-mt.c, * config/tc-nds32.c, * config/tc-or1k.c, * config/tc-ppc.c, * config/tc-pru.c, * config/tc-rl78.c, * config/tc-rx.c, * config/tc-s12z.c, * config/tc-s390.c, * config/tc-score.c, * config/tc-score7.c, * config/tc-sh.c, * config/tc-sparc.c, * config/tc-spu.c, * config/tc-tic4x.c, * config/tc-tic54x.c, * config/tc-tic6x.c, * config/tc-tilegx.c, * config/tc-tilepro.c, * config/tc-v850.c, * config/tc-visium.c, * config/tc-wasm32.c, * config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c, * config/tc-xtensa.c, * config/tc-z8k.c: Update throughout for bfd section macro and function changes. * write.c (compress_debug): Use bfd_rename_section. gdb/ * aarch64-linux-tdep.c, * arm-tdep.c, * auto-load.c, * coff-pe-read.c, * coffread.c, * corelow.c, * dbxread.c, * dicos-tdep.c, * dwarf2-frame.c, * dwarf2read.c, * elfread.c, * exec.c, * fbsd-tdep.c, * gcore.c, * gdb_bfd.c, * gdb_bfd.h, * hppa-tdep.c, * i386-cygwin-tdep.c, * i386-fbsd-tdep.c, * i386-linux-tdep.c, * jit.c, * linux-tdep.c, * machoread.c, * maint.c, * mdebugread.c, * minidebug.c, * mips-linux-tdep.c, * mips-sde-tdep.c, * mips-tdep.c, * mipsread.c, * nto-tdep.c, * objfiles.c, * objfiles.h, * osabi.c, * ppc-linux-tdep.c, * ppc64-tdep.c, * record-btrace.c, * record-full.c, * remote.c, * rs6000-aix-tdep.c, * rs6000-tdep.c, * s390-linux-tdep.c, * s390-tdep.c, * solib-aix.c, * solib-dsbt.c, * solib-frv.c, * solib-spu.c, * solib-svr4.c, * solib-target.c, * spu-linux-nat.c, * spu-tdep.c, * symfile-mem.c, * symfile.c, * symmisc.c, * symtab.c, * target.c, * windows-nat.c, * xcoffread.c, * cli/cli-dump.c, * compile/compile-object-load.c, * mi/mi-interp.c: Update throughout for bfd section macro and function changes. * gcore (gcore_create_callback): Use bfd_set_section_lma. * spu-tdep.c (spu_overlay_new_objfile): Likewise. gprof/ * corefile.c, * symtab.c: Update throughout for bfd section macro and function changes. ld/ * ldcref.c, * ldctor.c, * ldelf.c, * ldlang.c, * pe-dll.c, * emultempl/aarch64elf.em, * emultempl/aix.em, * emultempl/armcoff.em, * emultempl/armelf.em, * emultempl/cr16elf.em, * emultempl/cskyelf.em, * emultempl/m68hc1xelf.em, * emultempl/m68kelf.em, * emultempl/mipself.em, * emultempl/mmix-elfnmmo.em, * emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em, * emultempl/ppc64elf.em, * emultempl/xtensaelf.em: Update throughout for bfd section macro and function changes. libctf/ * ctf-open-bfd.c: Update throughout for bfd section macro changes. opcodes/ * arc-ext.c: Update throughout for bfd section macro changes. sim/ * common/sim-load.c, * common/sim-utils.c, * cris/sim-if.c, * erc32/func.c, * lm32/sim-if.c, * m32c/load.c, * m32c/trace.c, * m68hc11/interp.c, * ppc/hw_htab.c, * ppc/hw_init.c, * rl78/load.c, * rl78/trace.c, * rx/gdb-if.c, * rx/load.c, * rx/trace.c: Update throughout for bfd section macro changes.
2019-05-15.file file number checkingAlan Modra1-13/+14
This adds another test for file numbers given in .file directives, checking that the value can be represented as an unsigned int and that a memory allocation expression doesn't overflow. I removed a test added recently since an earlier test (num < 1) already covers the (num < 0) case. * dwarf2dbg.c: Whitespace fixes. (get_filenum): Don't strdup "file". Adjust error message. (dwarf2_directive_filename): Use an unsigned type for "num". Catch truncation of file number and overflow of get_filenum XRESIZEVEC multiplication. Delete dead code.
2019-05-14A series of fixes to addres problems detected by compiling the assembler ↵Nick Clifton1-3/+14
with address sanitization enabled. PR 24538 gas * macro.c (get_any_string): Increase size of buffer used to hold decimal value of expression result. * dw2gencfi.c (get_debugseg_name): Handle an empty name. * dwarf2dbg.c (get_filenum): Catch integer wraparound when extending allocate file array. (dwarf2_directive_filename): Add extra checks of the computed file number. * config/tc-arm.c (arm_tc_equal_in_insn): Insert copy of name into warning hash table. (s_arm_eabi_attribute): Check for obj_elf_vendor_attribute returning -1. * config/tc-i386.c (i386_output_nops): Catch an attempt to generate nops of negative lengths. * as.h (MAX_LITTLENUMS): Move definition to here from... * config/atof-ieee.c: ...here. * config/tc-aarch64.c: ...here. * config/tc-arc.c: ...here. * config/tc-arm.c: ...here. * config/tc-epiphany.c: ...here. * config/tc-i386.c: ...here. * config/tc-ia64.c: ...here. (And correct the value). * config/tc-m32c.c: ...here. * config/tc-m32r.c: ...here. * config/tc-metag.c: ...here. * config/tc-microblaze.c: ...here. * config/tc-nds32.c: ...here. * config/tc-or1k.c: ...here. * config/tc-score.c: ...here. * config/tc-score7.c: ...here. * config/tc-tic4x.c: ...here. * config/tc-tilegx.c: ...here. * config/tc-tilepro.c: ...here. * config/tc-visium.c: ...here. * config/tc-sh.c (md_assemble): Add check for an instruction with no opcodes. * config/tc-mips.c (mips_lookup_insn): Add check for very short instruction name. * config/tc-tic54x.c: Use unsigned chars to access is_end_of_line array. (tic54x_start_line_hook): Check for an empty line. (next_line_shows_parallel): Do not walk off the end of the string. (tic54x_macro_start): Check for too much macro nesting. (tic54x_start_label): Add label_start parameter. Use this parameter to check the first character of the label. * config/tc-tic54x.h (TC_START_LABEL_WITHOUT_COLON): Pass line_start variable to tic54x_start_label. PR 24538 opcodes * ia64-opc.c (ia64_find_matching_opcode): Check for reaching the end of the table prematurely.
2019-05-05[LVu] base subseg head view on prev subseg's tailAlexandre Oliva1-5/+32
Location views at borders between subsegments/subsections in the same segment/section are computed as if each new subsegment/subsection started with a forced view reset to zero, but the line number program does not introduce resets that are not explicitly requested, so if a subsegment ends at the same address another starts, the line number program will have a continuity of views at the border address, whereas the initial view number label in the latter subsegment will be miscomputed as zero. This patch delays the assignment of view expressions at subsegment heads to the time of chaining the frags of subsegments into a single segment, so that they are set based on the view at the end of the previous subsegment in the same segment. The line number program created for the test program had an unnecessary DW_LNS_advance_pc at the end. This patch also arranges for us not to emit it. for gas/ChangeLog * dwarf2dbg.c (set_or_check_view): Skip heads when assigning views of prior locs. (dwarf2_gen_line_info_1): Skip heads. (size_inc_line_addr, emit_inc_line_addr): Drop DW_LNS_advance_pc for zero addr delta. (dwarf2_finish): Assign views for heads of segments. * testsuite/gas/elf/dwarf2-19.d: New. * testsuite/gas/elf/dwarf2-19.s: New. * testsuite/gas/elf/elf.exp: Test it.
2019-03-13dwarf2: Align relocation within .debug_line sectionChristian Eggers1-3/+15
All relocations specify a byte address. As dwarf debug information is organized in octets, some relocations may not be aligned. While it might be possible to define special relocations that operate at an octet offset from their address, it's easier to ensure the relocations are aligned by padding with "nop" statements. In most dwarf sections this requirement is already fulfilled, only relocations for symbol address within the .debug_line section can be misaligned. * dwarf2dbg.c (out_set_addr): Align relocation within .debug_line.
2019-03-13dwarf2: Pad size of .debug_line section.Christian Eggers1-0/+11
As all dwarf debug information is organized in octets, the size of all dwarf sections must be aligned to OCTETS_PER_BYTE. Most DWARF sections meet this requirement, only the .debug_line section can reach an arbitrary octet size. In order to align the size to a multiple of OCTETS_PER_BYTE, the section is padded with "nop" statements at the end. * dwarf2dbg.c (out_debug_line): Pad size of .debug_line section.
generated by cgit v1.1 at 2025-02-16 05:22:13 +0000