/* as.c - GAS main program.
- Copyright (C) 1987-2017 Free Software Foundation, Inc.
+ Copyright (C) 1987-2019 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
#define COMMON
+/* Disable code to set FAKE_LABEL_NAME in obj-multi.h, to avoid circular
+ reference. */
+#define INITIALIZING_EMULS
+
#include "as.h"
#include "subsegs.h"
#include "output-file.h"
/* Enable verbose mode. */
int verbose = 0;
+/* Which version of DWARF CIE to produce. This default value of -1
+ indicates that this value has not been set yet, a default value is
+ provided in dwarf2_init. A different value can also be supplied by the
+ command line flag --gdwarf-cie-version, or by a target in
+ MD_AFTER_PARSE_ARGS. */
+int flag_dwarf_cie_version = -1;
+
#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON;
+bfd_boolean flag_generate_build_notes = DEFAULT_GENERATE_BUILD_NOTES;
#endif
/* Keep the output file. */
--size-check=[error|warning]\n\
ELF .size directive check (default --size-check=error)\n"));
fprintf (stream, _("\
- --elf-stt-common=[no|yes]\n\
+ --elf-stt-common=[no|yes] "));
+ if (DEFAULT_GENERATE_ELF_STT_COMMON)
+ fprintf (stream, _("(default: yes)\n"));
+ else
+ fprintf (stream, _("(default: no)\n"));
+ fprintf (stream, _("\
generate ELF common symbols with STT_COMMON type\n"));
fprintf (stream, _("\
--sectname-subst enable section name substitution sequences\n"));
+
+ fprintf (stream, _("\
+ --generate-missing-build-notes=[no|yes] "));
+#if DEFAULT_GENERATE_BUILD_NOTES
+ fprintf (stream, _("(default: yes)\n"));
+#else
+ fprintf (stream, _("(default: no)\n"));
#endif
+ fprintf (stream, _("\
+ generate GNU Build notes if none are present in the input\n"));
+#endif /* OBJ_ELF */
+
fprintf (stream, _("\
-f skip whitespace and comment preprocessing\n"));
fprintf (stream, _("\
OPTION_GSTABS_PLUS,
OPTION_GDWARF2,
OPTION_GDWARF_SECTIONS,
+ OPTION_GDWARF_CIE_VERSION,
OPTION_STRIP_LOCAL_ABSOLUTE,
OPTION_TRADITIONAL_FORMAT,
OPTION_WARN,
OPTION_NOEXECSTACK,
OPTION_SIZE_CHECK,
OPTION_ELF_STT_COMMON,
+ OPTION_ELF_BUILD_NOTES,
OPTION_SECTNAME_SUBST,
OPTION_ALTERNATE,
OPTION_AL,
,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK}
,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON}
,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST}
+ ,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES}
#endif
,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2}
so we keep it here for backwards compatibility. */
,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2}
,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS}
+ ,{"gdwarf-cie-version", required_argument, NULL, OPTION_GDWARF_CIE_VERSION}
,{"gen-debug", no_argument, NULL, 'g'}
,{"gstabs", no_argument, NULL, OPTION_GSTABS}
,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS}
case OPTION_VERSION:
/* This output is intended to follow the GNU standards document. */
printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
- printf (_("Copyright (C) 2017 Free Software Foundation, Inc.\n"));
+ printf (_("Copyright (C) 2019 Free Software Foundation, Inc.\n"));
printf (_("\
This program is free software; you may redistribute it under the terms of\n\
the GNU General Public License version 3 or later.\n\
flag_dwarf_sections = TRUE;
break;
+ case OPTION_GDWARF_CIE_VERSION:
+ flag_dwarf_cie_version = atoi (optarg);
+ /* The available CIE versions are 1 (DWARF 2), 3 (DWARF 3), and 4
+ (DWARF 4 and 5). */
+ if (flag_dwarf_cie_version < 1
+ || flag_dwarf_cie_version == 2
+ || flag_dwarf_cie_version > 4)
+ as_fatal (_("Invalid --gdwarf-cie-version `%s'"), optarg);
+ break;
+
case 'J':
flag_signed_overflow_ok = 1;
break;
case OPTION_SECTNAME_SUBST:
flag_sectname_subst = 1;
break;
-#endif
+
+ case OPTION_ELF_BUILD_NOTES:
+ if (strcasecmp (optarg, "no") == 0)
+ flag_generate_build_notes = FALSE;
+ else if (strcasecmp (optarg, "yes") == 0)
+ flag_generate_build_notes = TRUE;
+ else
+ as_fatal (_("Invalid --generate-missing-build-notes option: `%s'"),
+ optarg);
+ break;
+
+#endif /* OBJ_ELF */
+
case 'Z':
flag_always_generate_output = 1;
break;
static size_t
macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val)
{
- char *hold;
expressionS ex;
sb_terminate (in);
- hold = input_line_pointer;
- input_line_pointer = in->ptr + idx;
+ temp_ilp (in->ptr + idx);
expression_and_evaluate (&ex);
idx = input_line_pointer - in->ptr;
- input_line_pointer = hold;
+ restore_ilp ();
if (ex.X_op != O_constant)
as_bad ("%s", emsg);
/* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
to have relocs, otherwise we don't find out in time. */
applicable = bfd_applicable_section_flags (stdoutput);
- bfd_set_section_flags (stdoutput, text_section,
+ bfd_set_section_flags (text_section,
applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_CODE | SEC_READONLY));
- bfd_set_section_flags (stdoutput, data_section,
+ bfd_set_section_flags (data_section,
applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_DATA));
- bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
+ bfd_set_section_flags (bss_section, applicable & SEC_ALLOC);
seg_info (bss_section)->bss = 1;
#endif
subseg_new (BFD_ABS_SECTION_NAME, 0);
main (int argc, char ** argv)
{
char ** argv_orig = argv;
+ struct stat sob;
int macro_strip_at;
out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
hex_init ();
- bfd_init ();
+ if (bfd_init () != BFD_INIT_MAGIC)
+ as_fatal (_("libbfd ABI mismatch"));
bfd_set_error_program_name (myname);
#ifdef USE_EMULATIONS
/* Call parse_args before any of the init/begin functions
so that switches like --hash-size can be honored. */
parse_args (&argc, &argv);
+
+ if (argc > 1 && stat (out_file_name, &sob) == 0)
+ {
+ int i;
+
+ for (i = 1; i < argc; ++i)
+ {
+ struct stat sib;
+
+ /* Check that the input file and output file are different. */
+ if (stat (argv[i], &sib) == 0
+ && sib.st_ino == sob.st_ino
+ /* POSIX emulating systems may support stat() but if the
+ underlying file system does not support a file serial number
+ of some kind then they will return 0 for the inode. So
+ two files with an inode of 0 may not actually be the same.
+ On real POSIX systems no ordinary file will ever have an
+ inode of 0. */
+ && sib.st_ino != 0
+ /* Different files may have the same inode number if they
+ reside on different devices, so check the st_dev field as
+ well. */
+ && sib.st_dev == sob.st_dev)
+ {
+ const char *saved_out_file_name = out_file_name;
+
+ /* Don't let as_fatal remove the output file! */
+ out_file_name = NULL;
+ as_fatal (_("The input '%s' and output '%s' files are the same"),
+ argv[i], saved_out_file_name);
+ }
+ }
+ }
+
symbol_begin ();
frag_init ();
subsegs_begin ();
segT gnustack;
gnustack = subseg_new (".note.GNU-stack", 0);
- bfd_set_section_flags (stdoutput, gnustack,
+ bfd_set_section_flags (gnustack,
SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
}
projects / deliverable / binutils-gdb.git / blobdiff