819 lines
22 KiB
C++
819 lines
22 KiB
C++
// options.c -- handle command line options for gold
|
|
|
|
// Copyright 2006, 2007 Free Software Foundation, Inc.
|
|
// Written by Ian Lance Taylor <iant@google.com>.
|
|
|
|
// This file is part of gold.
|
|
|
|
// This program 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 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program 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 this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
// MA 02110-1301, USA.
|
|
|
|
#include "gold.h"
|
|
|
|
#include <iostream>
|
|
#include <sys/stat.h>
|
|
#include "filenames.h"
|
|
#include "libiberty.h"
|
|
|
|
#include "options.h"
|
|
|
|
namespace gold
|
|
{
|
|
|
|
// The information we keep for a single command line option.
|
|
|
|
struct options::One_option
|
|
{
|
|
// The single character option name, or '\0' if this is only a long
|
|
// option.
|
|
char short_option;
|
|
|
|
// The long option name, or NULL if this is only a short option.
|
|
const char* long_option;
|
|
|
|
// Description of the option for --help output, or NULL if there is none.
|
|
const char* doc;
|
|
|
|
// How to print the option name in --help output, or NULL to use the
|
|
// default.
|
|
const char* help_output;
|
|
|
|
// Long option dash control. This is ignored if long_option is
|
|
// NULL.
|
|
enum
|
|
{
|
|
// Long option normally takes one dash; two dashes are also
|
|
// accepted.
|
|
ONE_DASH,
|
|
// Long option normally takes two dashes; one dash is also
|
|
// accepted.
|
|
TWO_DASHES,
|
|
// Long option always takes two dashes.
|
|
EXACTLY_TWO_DASHES
|
|
} dash;
|
|
|
|
// Function for special handling, or NULL. Returns the number of
|
|
// arguments to skip. This will normally be at least 1, but it may
|
|
// be 0 if this function changes *argv. ARG points to the location
|
|
// in *ARGV where the option starts, which may be helpful for a
|
|
// short option.
|
|
int (*special)(int argc, char** argv, char *arg, Command_line*);
|
|
|
|
// If this is a position independent option which does not take an
|
|
// argument, this is the member function to call to record it.
|
|
void (General_options::*general_noarg)();
|
|
|
|
// If this is a position independent function which takes an
|
|
// argument, this is the member function to call to record it.
|
|
void (General_options::*general_arg)(const char*);
|
|
|
|
// If this is a position dependent option which does not take an
|
|
// argument, this is the member function to call to record it.
|
|
void (Position_dependent_options::*dependent_noarg)();
|
|
|
|
// If this is a position dependent option which takes an argument,
|
|
// this is the member function to record it.
|
|
void (Position_dependent_options::*dependent_arg)(const char*);
|
|
|
|
// Return whether this option takes an argument.
|
|
bool
|
|
takes_argument() const
|
|
{ return this->general_arg != NULL || this->dependent_arg != NULL; }
|
|
};
|
|
|
|
class options::Command_line_options
|
|
{
|
|
public:
|
|
static const One_option options[];
|
|
static const int options_size;
|
|
};
|
|
|
|
} // End namespace gold.
|
|
|
|
namespace
|
|
{
|
|
|
|
// Handle the special -l option, which adds an input file.
|
|
|
|
int
|
|
library(int argc, char** argv, char* arg, gold::Command_line* cmdline)
|
|
{
|
|
return cmdline->process_l_option(argc, argv, arg);
|
|
}
|
|
|
|
// Handle the special --start-group option.
|
|
|
|
int
|
|
start_group(int, char**, char* arg, gold::Command_line* cmdline)
|
|
{
|
|
cmdline->start_group(arg);
|
|
return 1;
|
|
}
|
|
|
|
// Handle the special --end-group option.
|
|
|
|
int
|
|
end_group(int, char**, char* arg, gold::Command_line* cmdline)
|
|
{
|
|
cmdline->end_group(arg);
|
|
return 1;
|
|
}
|
|
|
|
// Report usage information for ld --help, and exit.
|
|
|
|
int
|
|
help(int, char**, char*, gold::Command_line*)
|
|
{
|
|
printf(_("Usage: %s [options] file...\nOptions:\n"), gold::program_name);
|
|
|
|
const int options_size = gold::options::Command_line_options::options_size;
|
|
const gold::options::One_option* options =
|
|
gold::options::Command_line_options::options;
|
|
for (int i = 0; i < options_size; ++i)
|
|
{
|
|
if (options[i].doc == NULL)
|
|
continue;
|
|
|
|
printf(" ");
|
|
int len = 2;
|
|
bool comma = false;
|
|
|
|
int j = i;
|
|
do
|
|
{
|
|
if (options[j].help_output != NULL)
|
|
{
|
|
if (comma)
|
|
{
|
|
printf(", ");
|
|
len += 2;
|
|
}
|
|
printf(options[j].help_output);
|
|
len += std::strlen(options[i].help_output);
|
|
comma = true;
|
|
}
|
|
else
|
|
{
|
|
if (options[j].short_option != '\0')
|
|
{
|
|
if (comma)
|
|
{
|
|
printf(", ");
|
|
len += 2;
|
|
}
|
|
printf("-%c", options[j].short_option);
|
|
len += 2;
|
|
comma = true;
|
|
}
|
|
|
|
if (options[j].long_option != NULL)
|
|
{
|
|
if (comma)
|
|
{
|
|
printf(", ");
|
|
len += 2;
|
|
}
|
|
if (options[j].dash == gold::options::One_option::ONE_DASH)
|
|
{
|
|
printf("-");
|
|
++len;
|
|
}
|
|
else
|
|
{
|
|
printf("--");
|
|
len += 2;
|
|
}
|
|
printf("%s", options[j].long_option);
|
|
len += std::strlen(options[j].long_option);
|
|
comma = true;
|
|
}
|
|
}
|
|
++j;
|
|
}
|
|
while (j < options_size && options[j].doc == NULL);
|
|
|
|
if (len >= 30)
|
|
{
|
|
printf("\n");
|
|
len = 0;
|
|
}
|
|
for (; len < 30; ++len)
|
|
std::putchar(' ');
|
|
|
|
std::puts(options[i].doc);
|
|
}
|
|
|
|
::exit(0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Report version information.
|
|
|
|
int
|
|
version(int, char**, char* opt, gold::Command_line*)
|
|
{
|
|
gold::print_version(opt[0] == 'v' && opt[1] == '\0');
|
|
::exit(0);
|
|
return 0;
|
|
}
|
|
|
|
// If the default sysroot is relocatable, try relocating it based on
|
|
// the prefix FROM.
|
|
|
|
char*
|
|
get_relative_sysroot(const char* from)
|
|
{
|
|
char* path = make_relative_prefix(gold::program_name, from,
|
|
TARGET_SYSTEM_ROOT);
|
|
if (path != NULL)
|
|
{
|
|
struct stat s;
|
|
if (::stat(path, &s) == 0 && S_ISDIR(s.st_mode))
|
|
return path;
|
|
free(path);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
// Return the default sysroot. This is set by the --with-sysroot
|
|
// option to configure.
|
|
|
|
std::string
|
|
get_default_sysroot()
|
|
{
|
|
const char* sysroot = TARGET_SYSTEM_ROOT;
|
|
if (*sysroot == '\0')
|
|
return "";
|
|
|
|
if (TARGET_SYSTEM_ROOT_RELOCATABLE)
|
|
{
|
|
char* path = get_relative_sysroot (BINDIR);
|
|
if (path == NULL)
|
|
path = get_relative_sysroot (TOOLBINDIR);
|
|
if (path != NULL)
|
|
{
|
|
std::string ret = path;
|
|
free(path);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return sysroot;
|
|
}
|
|
|
|
} // End anonymous namespace.
|
|
|
|
namespace gold
|
|
{
|
|
|
|
// Helper macros used to specify the options. We could also do this
|
|
// using constructors, but then g++ would generate code to initialize
|
|
// the array. We want the array to be initialized statically so that
|
|
// we get better startup time.
|
|
|
|
#define GENERAL_NOARG(short_option, long_option, doc, help, dash, func) \
|
|
{ short_option, long_option, doc, help, options::One_option::dash, \
|
|
NULL, func, NULL, NULL, NULL }
|
|
#define GENERAL_ARG(short_option, long_option, doc, help, dash, func) \
|
|
{ short_option, long_option, doc, help, options::One_option::dash, \
|
|
NULL, NULL, func, NULL, NULL }
|
|
#define POSDEP_NOARG(short_option, long_option, doc, help, dash, func) \
|
|
{ short_option, long_option, doc, help, options::One_option::dash, \
|
|
NULL, NULL, NULL, func, NULL }
|
|
#define POSDEP_ARG(short_option, long_option, doc, help, dash, func) \
|
|
{ short_option, long_option, doc, help, options::One_option::dash, \
|
|
NULL, NULL, NULL, NULL, func }
|
|
#define SPECIAL(short_option, long_option, doc, help, dash, func) \
|
|
{ short_option, long_option, doc, help, options::One_option::dash, \
|
|
func, NULL, NULL, NULL, NULL }
|
|
|
|
// Here is the actual list of options which we accept.
|
|
|
|
const options::One_option
|
|
options::Command_line_options::options[] =
|
|
{
|
|
POSDEP_NOARG('\0', "as-needed",
|
|
N_("Only set DT_NEEDED for dynamic libs if used"),
|
|
NULL, TWO_DASHES, &Position_dependent_options::set_as_needed),
|
|
POSDEP_NOARG('\0', "no-as-needed",
|
|
N_("Always DT_NEEDED for dynamic libs (default)"),
|
|
NULL, TWO_DASHES, &Position_dependent_options::clear_as_needed),
|
|
GENERAL_NOARG('E', "export-dynamic", N_("Export all dynamic symbols"),
|
|
NULL, TWO_DASHES, &General_options::set_export_dynamic),
|
|
GENERAL_NOARG('\0', "eh-frame-hdr", N_("Create exception frame header"),
|
|
NULL, TWO_DASHES, &General_options::set_create_eh_frame_hdr),
|
|
GENERAL_ARG('I', "dynamic-linker", N_("Set dynamic linker path"),
|
|
N_("-I PROGRAM, --dynamic-linker PROGRAM"), TWO_DASHES,
|
|
&General_options::set_dynamic_linker),
|
|
SPECIAL('l', "library", N_("Search for library LIBNAME"),
|
|
N_("-lLIBNAME, --library LIBNAME"), TWO_DASHES,
|
|
&library),
|
|
GENERAL_ARG('L', "library-path", N_("Add directory to search path"),
|
|
N_("-L DIR, --library-path DIR"), TWO_DASHES,
|
|
&General_options::add_to_search_path),
|
|
GENERAL_ARG('m', NULL, N_("Ignored for compatibility"), NULL, ONE_DASH,
|
|
&General_options::ignore),
|
|
GENERAL_ARG('o', "output", N_("Set output file name"),
|
|
N_("-o FILE, --output FILE"), TWO_DASHES,
|
|
&General_options::set_output_file_name),
|
|
GENERAL_ARG('O', NULL, N_("Optimize output file size"),
|
|
N_("-O level"), ONE_DASH,
|
|
&General_options::set_optimization_level),
|
|
GENERAL_NOARG('r', NULL, N_("Generate relocatable output"), NULL,
|
|
ONE_DASH, &General_options::set_relocatable),
|
|
GENERAL_ARG('R', "rpath", N_("Add DIR to runtime search path"),
|
|
N_("-R DIR, -rpath DIR"), ONE_DASH,
|
|
&General_options::add_to_rpath),
|
|
GENERAL_ARG('\0', "rpath-link",
|
|
N_("Add DIR to link time shared library search path"),
|
|
N_("--rpath-link DIR"), TWO_DASHES,
|
|
&General_options::add_to_rpath_link),
|
|
GENERAL_NOARG('s', "strip-all", N_("Strip all symbols"), NULL,
|
|
TWO_DASHES, &General_options::set_strip_all),
|
|
GENERAL_NOARG('S', "strip-debug", N_("Strip debugging information"), NULL,
|
|
TWO_DASHES, &General_options::set_strip_debug),
|
|
GENERAL_NOARG('\0', "shared", N_("Generate shared library"),
|
|
NULL, ONE_DASH, &General_options::set_shared),
|
|
GENERAL_NOARG('\0', "static", N_("Do not link against shared libraries"),
|
|
NULL, ONE_DASH, &General_options::set_static),
|
|
GENERAL_NOARG('\0', "stats", N_("Print resource usage statistics"),
|
|
NULL, TWO_DASHES, &General_options::set_stats),
|
|
GENERAL_ARG('\0', "sysroot", N_("Set target system root directory"),
|
|
N_("--sysroot DIR"), TWO_DASHES, &General_options::set_sysroot),
|
|
GENERAL_ARG('\0', "Ttext", N_("Set the address of the .text section"),
|
|
N_("-Ttext ADDRESS"), ONE_DASH,
|
|
&General_options::set_text_segment_address),
|
|
GENERAL_NOARG('\0', "threads", N_("Run the linker multi-threaded"),
|
|
NULL, TWO_DASHES, &General_options::set_threads),
|
|
GENERAL_NOARG('\0', "no-threads", N_("Do not run the linker multi-threaded"),
|
|
NULL, TWO_DASHES, &General_options::clear_threads),
|
|
GENERAL_ARG('\0', "thread-count", N_("Number of threads to use"),
|
|
N_("--thread-count COUNT"), TWO_DASHES,
|
|
&General_options::set_thread_count),
|
|
GENERAL_ARG('\0', "thread-count-initial",
|
|
N_("Number of threads to use in initial pass"),
|
|
N_("--thread-count-initial COUNT"), TWO_DASHES,
|
|
&General_options::set_thread_count_initial),
|
|
GENERAL_ARG('\0', "thread-count-middle",
|
|
N_("Number of threads to use in middle pass"),
|
|
N_("--thread-count-middle COUNT"), TWO_DASHES,
|
|
&General_options::set_thread_count_middle),
|
|
GENERAL_ARG('\0', "thread-count-final",
|
|
N_("Number of threads to use in final pass"),
|
|
N_("--thread-count-final COUNT"), TWO_DASHES,
|
|
&General_options::set_thread_count_final),
|
|
POSDEP_NOARG('\0', "whole-archive",
|
|
N_("Include all archive contents"),
|
|
NULL, TWO_DASHES,
|
|
&Position_dependent_options::set_whole_archive),
|
|
POSDEP_NOARG('\0', "no-whole-archive",
|
|
N_("Include only needed archive contents"),
|
|
NULL, TWO_DASHES,
|
|
&Position_dependent_options::clear_whole_archive),
|
|
SPECIAL('(', "start-group", N_("Start a library search group"), NULL,
|
|
TWO_DASHES, &start_group),
|
|
SPECIAL(')', "end-group", N_("End a library search group"), NULL,
|
|
TWO_DASHES, &end_group),
|
|
SPECIAL('\0', "help", N_("Report usage information"), NULL,
|
|
TWO_DASHES, &help),
|
|
SPECIAL('v', "version", N_("Report version information"), NULL,
|
|
TWO_DASHES, &version)
|
|
};
|
|
|
|
const int options::Command_line_options::options_size =
|
|
sizeof (options) / sizeof (options[0]);
|
|
|
|
// The default values for the general options.
|
|
|
|
General_options::General_options()
|
|
: export_dynamic_(false),
|
|
dynamic_linker_(NULL),
|
|
search_path_(),
|
|
optimization_level_(0),
|
|
output_file_name_("a.out"),
|
|
is_relocatable_(false),
|
|
strip_(STRIP_NONE),
|
|
create_eh_frame_hdr_(false),
|
|
rpath_(),
|
|
rpath_link_(),
|
|
is_shared_(false),
|
|
is_static_(false),
|
|
print_stats_(false),
|
|
sysroot_(),
|
|
text_segment_address_(-1U), // -1 indicates value not set by user
|
|
threads_(false),
|
|
thread_count_initial_(0),
|
|
thread_count_middle_(0),
|
|
thread_count_final_(0)
|
|
{
|
|
}
|
|
|
|
// The default values for the position dependent options.
|
|
|
|
Position_dependent_options::Position_dependent_options()
|
|
: do_static_search_(false),
|
|
as_needed_(false),
|
|
include_whole_archive_(false)
|
|
{
|
|
}
|
|
|
|
// Add the sysroot, if any, to the search paths.
|
|
|
|
void
|
|
General_options::add_sysroot()
|
|
{
|
|
if (this->sysroot_.empty())
|
|
{
|
|
this->sysroot_ = get_default_sysroot();
|
|
if (this->sysroot_.empty())
|
|
return;
|
|
}
|
|
|
|
const char* sysroot = this->sysroot_.c_str();
|
|
char* canonical_sysroot = lrealpath(sysroot);
|
|
|
|
for (Dir_list::iterator p = this->search_path_.begin();
|
|
p != this->search_path_.end();
|
|
++p)
|
|
p->add_sysroot(sysroot, canonical_sysroot);
|
|
|
|
free(canonical_sysroot);
|
|
}
|
|
|
|
// Search_directory methods.
|
|
|
|
// This is called if we have a sysroot. Apply the sysroot if
|
|
// appropriate. Record whether the directory is in the sysroot.
|
|
|
|
void
|
|
Search_directory::add_sysroot(const char* sysroot,
|
|
const char* canonical_sysroot)
|
|
{
|
|
gold_assert(*sysroot != '\0');
|
|
if (this->put_in_sysroot_)
|
|
{
|
|
if (!IS_DIR_SEPARATOR(this->name_[0])
|
|
&& !IS_DIR_SEPARATOR(sysroot[strlen(sysroot) - 1]))
|
|
this->name_ = '/' + this->name_;
|
|
this->name_ = sysroot + this->name_;
|
|
this->is_in_sysroot_ = true;
|
|
}
|
|
else
|
|
{
|
|
// Check whether this entry is in the sysroot. To do this
|
|
// correctly, we need to use canonical names. Otherwise we will
|
|
// get confused by the ../../.. paths that gcc tends to use.
|
|
char* canonical_name = lrealpath(this->name_.c_str());
|
|
int canonical_name_len = strlen(canonical_name);
|
|
int canonical_sysroot_len = strlen(canonical_sysroot);
|
|
if (canonical_name_len > canonical_sysroot_len
|
|
&& IS_DIR_SEPARATOR(canonical_name[canonical_sysroot_len]))
|
|
{
|
|
canonical_name[canonical_sysroot_len] = '\0';
|
|
if (FILENAME_CMP(canonical_name, canonical_sysroot) == 0)
|
|
this->is_in_sysroot_ = true;
|
|
}
|
|
free(canonical_name);
|
|
}
|
|
}
|
|
|
|
// Input_arguments methods.
|
|
|
|
// Add a file to the list.
|
|
|
|
void
|
|
Input_arguments::add_file(const Input_file_argument& file)
|
|
{
|
|
if (!this->in_group_)
|
|
this->input_argument_list_.push_back(Input_argument(file));
|
|
else
|
|
{
|
|
gold_assert(!this->input_argument_list_.empty());
|
|
gold_assert(this->input_argument_list_.back().is_group());
|
|
this->input_argument_list_.back().group()->add_file(file);
|
|
}
|
|
}
|
|
|
|
// Start a group.
|
|
|
|
void
|
|
Input_arguments::start_group()
|
|
{
|
|
gold_assert(!this->in_group_);
|
|
Input_file_group* group = new Input_file_group();
|
|
this->input_argument_list_.push_back(Input_argument(group));
|
|
this->in_group_ = true;
|
|
}
|
|
|
|
// End a group.
|
|
|
|
void
|
|
Input_arguments::end_group()
|
|
{
|
|
gold_assert(this->in_group_);
|
|
this->in_group_ = false;
|
|
}
|
|
|
|
// Command_line options.
|
|
|
|
Command_line::Command_line()
|
|
: options_(), position_options_(), inputs_()
|
|
{
|
|
}
|
|
|
|
// Process the command line options.
|
|
|
|
void
|
|
Command_line::process(int argc, char** argv)
|
|
{
|
|
const int options_size = options::Command_line_options::options_size;
|
|
const options::One_option* options =
|
|
options::Command_line_options::options;
|
|
bool no_more_options = false;
|
|
int i = 0;
|
|
while (i < argc)
|
|
{
|
|
if (argv[i][0] != '-' || no_more_options)
|
|
{
|
|
this->add_file(argv[i], false);
|
|
++i;
|
|
continue;
|
|
}
|
|
|
|
// Option starting with '-'.
|
|
int dashes = 1;
|
|
if (argv[i][1] == '-')
|
|
{
|
|
dashes = 2;
|
|
if (argv[i][2] == '\0')
|
|
{
|
|
no_more_options = true;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Look for a long option match.
|
|
char* opt = argv[i] + dashes;
|
|
char first = opt[0];
|
|
int skiparg = 0;
|
|
char* arg = strchr(opt, '=');
|
|
bool argument_with_equals = arg != NULL;
|
|
if (arg != NULL)
|
|
{
|
|
*arg = '\0';
|
|
++arg;
|
|
}
|
|
else if (i + 1 < argc)
|
|
{
|
|
arg = argv[i + 1];
|
|
skiparg = 1;
|
|
}
|
|
|
|
int j;
|
|
for (j = 0; j < options_size; ++j)
|
|
{
|
|
if (options[j].long_option != NULL
|
|
&& (dashes == 2
|
|
|| (options[j].dash
|
|
!= options::One_option::EXACTLY_TWO_DASHES))
|
|
&& first == options[j].long_option[0]
|
|
&& strcmp(opt, options[j].long_option) == 0)
|
|
{
|
|
if (options[j].special)
|
|
i += options[j].special(argc - 1, argv + i, opt, this);
|
|
else
|
|
{
|
|
if (!options[j].takes_argument())
|
|
{
|
|
if (argument_with_equals)
|
|
this->usage(_("unexpected argument"), argv[i]);
|
|
arg = NULL;
|
|
skiparg = 0;
|
|
}
|
|
else
|
|
{
|
|
if (arg == NULL)
|
|
this->usage(_("missing argument"), argv[i]);
|
|
}
|
|
this->apply_option(options[j], arg);
|
|
i += skiparg + 1;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
if (j < options_size)
|
|
continue;
|
|
|
|
// If we saw two dashes, we need to see a long option.
|
|
if (dashes == 2)
|
|
this->usage(_("unknown option"), argv[i]);
|
|
|
|
// Look for a short option match. There may be more than one
|
|
// short option in a given argument.
|
|
bool done = false;
|
|
char* s = argv[i] + 1;
|
|
++i;
|
|
while (*s != '\0' && !done)
|
|
{
|
|
char opt = *s;
|
|
int j;
|
|
for (j = 0; j < options_size; ++j)
|
|
{
|
|
if (options[j].short_option == opt)
|
|
{
|
|
if (options[j].special)
|
|
{
|
|
// Undo the argument skip done above.
|
|
--i;
|
|
i += options[j].special(argc - i, argv + i, s, this);
|
|
done = true;
|
|
}
|
|
else
|
|
{
|
|
arg = NULL;
|
|
if (options[j].takes_argument())
|
|
{
|
|
if (s[1] != '\0')
|
|
{
|
|
arg = s + 1;
|
|
done = true;
|
|
}
|
|
else if (i < argc)
|
|
{
|
|
arg = argv[i];
|
|
++i;
|
|
}
|
|
else
|
|
this->usage(_("missing argument"), opt);
|
|
}
|
|
this->apply_option(options[j], arg);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (j >= options_size)
|
|
this->usage(_("unknown option"), *s);
|
|
|
|
++s;
|
|
}
|
|
}
|
|
|
|
if (this->inputs_.in_group())
|
|
{
|
|
fprintf(stderr, _("%s: missing group end"), program_name);
|
|
this->usage();
|
|
}
|
|
|
|
// FIXME: We should only do this when configured in native mode.
|
|
this->options_.add_to_search_path_with_sysroot("/lib");
|
|
this->options_.add_to_search_path_with_sysroot("/usr/lib");
|
|
|
|
this->options_.add_sysroot();
|
|
|
|
// Ensure options don't contradict each other and are otherwise kosher.
|
|
this->normalize_options();
|
|
}
|
|
|
|
// Ensure options don't contradict each other and are otherwise kosher.
|
|
|
|
void
|
|
Command_line::normalize_options()
|
|
{
|
|
// If the user specifies both -s and -r, convert the -s as -S.
|
|
// -r requires us to keep externally visible symbols!
|
|
if (this->options_.strip_all() && this->options_.is_relocatable())
|
|
{
|
|
// Clears the strip_all() status, replacing it with strip_debug().
|
|
this->options_.set_strip_debug();
|
|
}
|
|
|
|
// FIXME: we can/should be doing a lot more sanity checking here.
|
|
}
|
|
|
|
|
|
// Apply a command line option.
|
|
|
|
void
|
|
Command_line::apply_option(const options::One_option& opt,
|
|
const char* arg)
|
|
{
|
|
if (arg == NULL)
|
|
{
|
|
if (opt.general_noarg)
|
|
(this->options_.*(opt.general_noarg))();
|
|
else if (opt.dependent_noarg)
|
|
(this->position_options_.*(opt.dependent_noarg))();
|
|
else
|
|
gold_unreachable();
|
|
}
|
|
else
|
|
{
|
|
if (opt.general_arg)
|
|
(this->options_.*(opt.general_arg))(arg);
|
|
else if (opt.dependent_arg)
|
|
(this->position_options_.*(opt.dependent_arg))(arg);
|
|
else
|
|
gold_unreachable();
|
|
}
|
|
}
|
|
|
|
// Add an input file or library.
|
|
|
|
void
|
|
Command_line::add_file(const char* name, bool is_lib)
|
|
{
|
|
Input_file_argument file(name, is_lib, "", this->position_options_);
|
|
this->inputs_.add_file(file);
|
|
}
|
|
|
|
// Handle the -l option, which requires special treatment.
|
|
|
|
int
|
|
Command_line::process_l_option(int argc, char** argv, char* arg)
|
|
{
|
|
int ret;
|
|
const char* libname;
|
|
if (arg[1] != '\0')
|
|
{
|
|
ret = 1;
|
|
libname = arg + 1;
|
|
}
|
|
else if (argc > 1)
|
|
{
|
|
ret = 2;
|
|
libname = argv[argc + 1];
|
|
}
|
|
else
|
|
this->usage(_("missing argument"), arg);
|
|
|
|
this->add_file(libname, true);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// Handle the --start-group option.
|
|
|
|
void
|
|
Command_line::start_group(const char* arg)
|
|
{
|
|
if (this->inputs_.in_group())
|
|
this->usage(_("may not nest groups"), arg);
|
|
this->inputs_.start_group();
|
|
}
|
|
|
|
// Handle the --end-group option.
|
|
|
|
void
|
|
Command_line::end_group(const char* arg)
|
|
{
|
|
if (!this->inputs_.in_group())
|
|
this->usage(_("group end without group start"), arg);
|
|
this->inputs_.end_group();
|
|
}
|
|
|
|
// Report a usage error. */
|
|
|
|
void
|
|
Command_line::usage()
|
|
{
|
|
fprintf(stderr,
|
|
_("%s: use the --help option for usage information\n"),
|
|
program_name);
|
|
::exit(1);
|
|
}
|
|
|
|
void
|
|
Command_line::usage(const char* msg, const char *opt)
|
|
{
|
|
fprintf(stderr,
|
|
_("%s: %s: %s\n"),
|
|
program_name, opt, msg);
|
|
this->usage();
|
|
}
|
|
|
|
void
|
|
Command_line::usage(const char* msg, char opt)
|
|
{
|
|
fprintf(stderr,
|
|
_("%s: -%c: %s\n"),
|
|
program_name, opt, msg);
|
|
this->usage();
|
|
}
|
|
|
|
} // End namespace gold.
|