binutils-gdb/gas/remap.c

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/* Remap file names for debug info for GNU assembler.
Copyright (C) 2007-2019 Free Software Foundation, Inc.
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. */
#include "as.h"
#include "filenames.h"
/* Structure recording the mapping from source file and directory
names at compile time to those to be embedded in debug
information. */
typedef struct debug_prefix_map
{
const char *old_prefix;
const char *new_prefix;
size_t old_len;
size_t new_len;
struct debug_prefix_map *next;
} debug_prefix_map;
/* Linked list of such structures. */
debug_prefix_map *debug_prefix_maps;
/* Record a debug file prefix mapping. ARG is the argument to
-fdebug-prefix-map and must be of the form OLD=NEW. */
void
add_debug_prefix_map (const char *arg)
{
debug_prefix_map *map;
const char *p;
char *o;
p = strchr (arg, '=');
if (!p)
{
as_fatal (_("invalid argument '%s' to -fdebug-prefix-map"), arg);
return;
}
use XNEW and related macros more gas/ChangeLog: 2016-04-03 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * app.c (app_push): use XNEW macro. * as.c: Likewise. * config/obj-elf.c (obj_elf_change_section): Likewise. (elf_copy_symbol_attributes): Likewise. (obj_elf_size): Likewise. (build_group_lists): Likewise. * config/tc-aarch64.c (add_operand_error_record): Likewise. (md_assemble): Likewise. (tc_gen_reloc): Likewise. (get_upper_str): Likewise. (aarch64_parse_features): Likewise. * config/tc-arm.c (insert_reg_alias): Likewise. (insert_neon_reg_alias): Likewise. (find_or_make_literal_pool): Likewise. (s_arm_elf_cons): Likewise. (add_unwind_opcode): Likewise. (arm_parse_extension): Likewise. * config/tc-avr.c (create_record_for_frag): Likewise. * config/tc-crx.c: Likewise. * config/tc-d30v.c: Likewise. * config/tc-dlx.c (s_proc): Likewise. * config/tc-ft32.c: Likewise. * config/tc-h8300.c: Likewise. * config/tc-hppa.c (pa_proc): Likewise. (create_new_space): Likewise. (create_new_subspace): Likewise. * config/tc-i860.c: Likewise. * config/tc-i960.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-iq2000.c (iq2000_add_macro): Likewise. (iq2000_record_hi16): Likewise. * config/tc-m32c.c (m32c_indirect_operand): Likewise. * config/tc-m32r.c (debug_sym): Likewise. (m32r_record_hi16): Likewise. * config/tc-m68k.c (m68k_ip): Likewise. (md_begin): Likewise. * config/tc-mcore.c: Likewise. * config/tc-microblaze.c (check_got): Likewise. * config/tc-mips.c (append_insn): Likewise. (s_mipsset): Likewise. (mips_record_label): Likewise. (s_mips_end): Likewise. * config/tc-mmix.c (mmix_frob_file): Likewise. * config/tc-mn10200.c: Likewise. * config/tc-mn10300.c: Likewise. * config/tc-moxie.c: Likewise. * config/tc-msp430.c: Likewise. * config/tc-nds32.c (nds32_elf_save_pseudo_pattern): Likewise. * config/tc-ns32k.c: Likewise. * config/tc-or1k.c: Likewise. * config/tc-pdp11.c: Likewise. * config/tc-pj.c (fake_opcode): Likewise. * config/tc-ppc.c (ppc_apuinfo_section_add): Likewise. (ppc_macro): Likewise. (ppc_dwsect): Likewise. (ppc_machine): Likewise. * config/tc-rl78.c (rl78_frag_init): Likewise. * config/tc-rx.c (rx_frag_init): Likewise. * config/tc-s390.c (s390_lit_suffix): Likewise. (s390_machine): Likewise. (s390_machinemode): Likewise. * config/tc-score.c (s3_insert_reg): Likewise. (s3_gen_reloc): Likewise. * config/tc-score7.c (s7_insert_reg): Likewise. (s7_gen_reloc): Likewise. * config/tc-tic30.c (tic30_operand): Likewise. * config/tc-tic4x.c (tic4x_inst_make): Likewise. * config/tc-tic54x.c (stag_add_field): Likewise. (tic54x_struct): Likewise. (tic54x_space): Likewise. (tic54x_field): Likewise. (tic54x_mlib): Likewise. (subsym_substitute): Likewise. * config/tc-tic6x.c (tic6x_frob_label): Likewise. * config/tc-vax.c: Likewise. * config/tc-xc16x.c: Likewise. * config/tc-xtensa.c (xtensa_add_insn_label): Likewise. (directive_push): Likewise. (xtensa_begin_directive): Likewise. (tokenize_arguments): Likewise. (xtensa_add_literal_sym): Likewise. (new_resource_table): Likewise. (resize_resource_table): Likewise. (emit_single_op): Likewise. (xtensa_create_trampoline_frag): Likewise. (xtensa_maybe_create_literal_pool_frag): Likewise. (xtensa_add_config_info): Likewise. (xtensa_realloc_fixup_cache): Likewise. (add_subseg_info): Likewise. (cache_literal_section): Likewise. (add_xt_block_frags): Likewise. (add_xt_prop_frags): Likewise. (init_op_placement_info_table): Likewise. (build_section_rename): Likewise. * config/tc-z80.c: Likewise. * config/tc-z8k.c: Likewise. * depend.c (register_dependency): Likewise. * dwarf2dbg.c (get_line_subseg): Likewise. (dwarf2_gen_line_info_1): Likewise. (get_filenum): Likewise. * ecoff.c (allocate_scope): Likewise. (allocate_vlinks): Likewise. (allocate_shash): Likewise. (allocate_thash): Likewise. (allocate_tag): Likewise. (allocate_forward): Likewise. (allocate_thead): Likewise. (allocate_lineno_list): Likewise. * expr.c (make_expr_symbol): Likewise. * hash.c (hash_new_sized): Likewise. * input-file.c (input_file_push): Likewise. * listing.c (file_info): Likewise. (listing_newline): Likewise. * macro.c (new_formal): Likewise. (define_macro): Likewise. * remap.c (add_debug_prefix_map): Likewise. * symbols.c (symbol_find_noref): Likewise. (define_dollar_label): Likewise. (fb_label_instance_inc): Likewise. (symbol_relc_make_value): Likewise.
2016-04-01 15:26:30 +02:00
map = XNEW (debug_prefix_map);
o = xstrdup (arg);
map->old_prefix = o;
map->old_len = p - arg;
o[map->old_len] = 0;
p++;
map->new_prefix = xstrdup (p);
map->new_len = strlen (p);
map->next = debug_prefix_maps;
debug_prefix_maps = map;
}
/* Perform user-specified mapping of debug filename prefixes. Returns
a newly allocated buffer containing the name corresponding to FILENAME.
It is the caller's responsibility to free the buffer. */
const char *
remap_debug_filename (const char *filename)
{
debug_prefix_map *map;
for (map = debug_prefix_maps; map; map = map->next)
if (filename_ncmp (filename, map->old_prefix, map->old_len) == 0)
{
const char *name = filename + map->old_len;
return concat (map->new_prefix, name, NULL);
}
return xstrdup (filename);
}