// options.c -- handle command line options for gold
-// Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
{
// This flag is TRUE if we should register the command-line options as they
-// are constructed. It is set after contruction of the options within
+// are constructed. It is set after construction of the options within
// class Position_dependent_options.
static bool ready_to_register = false;
// These are set up at the same time -- the variables that accept one
// dash, two, or require -z. A single variable may be in more than
-// one of thes data structures.
+// one of these data structures.
typedef Unordered_map<std::string, One_option*> Option_map;
static Option_map* long_options = NULL;
static One_option* short_options[128];
printf(" %s", *p);
printf("\n");
+ printf(_("%s: supported emulations:"), gold::program_name);
+ supported_names.clear();
+ gold::supported_emulation_names(&supported_names);
+ for (std::vector<const char*>::const_iterator p = supported_names.begin();
+ p != supported_names.end();
+ ++p)
+ printf(" %s", *p);
+ printf("\n");
+
// REPORT_BUGS_TO is defined in bfd/bfdver.h.
const char* report = REPORT_BUGS_TO;
if (*report != '\0')
{
char* endptr;
*retval = strtol(arg, &endptr, 0);
- if (*endptr != '\0' || retval < 0)
+ if (*endptr != '\0' || *retval < 0)
gold_fatal(_("%s: invalid option value (expected an integer): %s"),
option_name, arg);
}
}
void
-parse_uint64(const char* option_name, const char* arg, uint64_t *retval)
+parse_uint64(const char* option_name, const char* arg, uint64_t* retval)
{
char* endptr;
*retval = strtoull(arg, &endptr, 0);
}
void
+parse_percent(const char* option_name, const char* arg, double* retval)
+{
+ char* endptr;
+ *retval = strtod(arg, &endptr) / 100.0;
+ if (*endptr != '\0')
+ gold_fatal(_("%s: invalid option value "
+ "(expected a floating point number): %s"),
+ option_name, arg);
+}
+
+void
parse_string(const char* option_name, const char* arg, const char** retval)
{
if (*arg == '\0')
{
gold::print_version(true);
this->printed_version_ = true;
+
printf(_(" Supported targets:\n"));
std::vector<const char*> supported_names;
gold::supported_target_names(&supported_names);
p != supported_names.end();
++p)
printf(" %s\n", *p);
+
+ printf(_(" Supported emulations:\n"));
+ supported_names.clear();
+ gold::supported_emulation_names(&supported_names);
+ for (std::vector<const char*>::const_iterator p = supported_names.begin();
+ p != supported_names.end();
+ ++p)
+ printf(" %s\n", *p);
}
void
}
void
+General_options::parse_incremental(const char*, const char*,
+ Command_line*)
+{
+ this->incremental_mode_ = INCREMENTAL_AUTO;
+}
+
+void
+General_options::parse_no_incremental(const char*, const char*,
+ Command_line*)
+{
+ this->incremental_mode_ = INCREMENTAL_OFF;
+}
+
+void
+General_options::parse_incremental_full(const char*, const char*,
+ Command_line*)
+{
+ this->incremental_mode_ = INCREMENTAL_FULL;
+}
+
+void
+General_options::parse_incremental_update(const char*, const char*,
+ Command_line*)
+{
+ this->incremental_mode_ = INCREMENTAL_UPDATE;
+}
+
+void
General_options::parse_incremental_changed(const char*, const char*,
Command_line*)
{
}
void
+General_options::parse_incremental_startup_unchanged(const char*, const char*,
+ Command_line*)
+{
+ this->implicit_incremental_ = true;
+ this->incremental_startup_disposition_ = INCREMENTAL_UNCHANGED;
+}
+
+void
General_options::parse_library(const char*, const char* arg,
Command_line* cmdline)
{
Input_file_argument::Input_file_type type;
- const char *name;
+ const char* name;
if (arg[0] == ':')
{
type = Input_file_argument::INPUT_FILE_TYPE_SEARCHED_FILE;
cmdline->inputs().end_group();
}
+void
+General_options::parse_start_lib(const char*, const char*,
+ Command_line* cmdline)
+{
+ cmdline->inputs().start_lib(cmdline->position_dependent_options());
+}
+
+void
+General_options::parse_end_lib(const char*, const char*,
+ Command_line* cmdline)
+{
+ cmdline->inputs().end_lib();
+}
+
// The function add_excluded_libs() in ld/ldlang.c of GNU ld breaks up a list
-// of names seperated by commas or colons and puts them in a linked list.
+// of names separated by commas or colons and puts them in a linked list.
// We implement the same parsing of names here but store names in an unordered
// map to speed up searching of names.
General_options::parse_exclude_libs(const char*, const char* arg,
Command_line*)
{
- const char *p = arg;
+ const char* p = arg;
while (*p != '\0')
{
// wild-card and matches any given name.
bool
-General_options::check_excluded_libs (const std::string &name) const
+General_options::check_excluded_libs(const std::string &name) const
{
Unordered_set<std::string>::const_iterator p;
return true;
// First strip off any directories in name.
- const char *basename = lbasename(name.c_str());
+ const char* basename = lbasename(name.c_str());
// Try finding an exact match.
p = excluded_libs_.find(std::string(basename));
}
}
+void
+General_options::parse_fix_v4bx(const char*, const char*,
+ Command_line*)
+{
+ this->fix_v4bx_ = FIX_V4BX_REPLACE;
+}
+
+void
+General_options::parse_fix_v4bx_interworking(const char*, const char*,
+ Command_line*)
+{
+ this->fix_v4bx_ = FIX_V4BX_INTERWORKING;
+}
+
+void
+General_options::parse_EB(const char*, const char*, Command_line*)
+{
+ this->endianness_ = ENDIANNESS_BIG;
+}
+
+void
+General_options::parse_EL(const char*, const char*, Command_line*)
+{
+ this->endianness_ = ENDIANNESS_LITTLE;
+}
+
} // End namespace gold.
namespace
}
void
-usage(const char* msg, const char *opt)
+usage(const char* msg, const char* opt)
{
fprintf(stderr,
_("%s: %s: %s\n"),
do_demangle_(false),
plugins_(NULL),
dynamic_list_(),
- incremental_disposition_(INCREMENTAL_CHECK),
+ incremental_mode_(INCREMENTAL_OFF),
+ incremental_disposition_(INCREMENTAL_STARTUP),
+ incremental_startup_disposition_(INCREMENTAL_CHECK),
implicit_incremental_(false),
excluded_libs_(),
symbols_to_retain_(),
- section_starts_()
+ section_starts_(),
+ fix_v4bx_(FIX_V4BX_NONE),
+ endianness_(ENDIANNESS_NOT_SET)
{
// Turn off option registration once construction is complete.
gold::options::ready_to_register = false;
program_name);
#endif
+ std::string libpath;
if (this->user_set_Y())
{
- std::string s = this->Y();
- if (s.compare(0, 2, "P,") == 0)
- s.erase(0, 2);
+ libpath = this->Y();
+ if (libpath.compare(0, 2, "P,") == 0)
+ libpath.erase(0, 2);
+ }
+ else if (!this->nostdlib())
+ {
+#ifndef NATIVE_LINKER
+#define NATIVE_LINKER 0
+#endif
+ const char* p = LIB_PATH;
+ if (strcmp(p, "::DEFAULT::") != 0)
+ libpath = p;
+ else if (NATIVE_LINKER
+ || this->user_set_sysroot()
+ || *TARGET_SYSTEM_ROOT != '\0')
+ {
+ this->add_to_library_path_with_sysroot("/lib");
+ this->add_to_library_path_with_sysroot("/usr/lib");
+ }
+ else
+ this->add_to_library_path_with_sysroot(TOOLLIBDIR);
+ }
+ if (!libpath.empty())
+ {
size_t pos = 0;
size_t next_pos;
do
{
- next_pos = s.find(':', pos);
+ next_pos = libpath.find(':', pos);
size_t len = (next_pos == std::string::npos
? next_pos
: next_pos - pos);
if (len != 0)
- this->add_to_library_path_with_sysroot(s.substr(pos, len).c_str());
+ this->add_to_library_path_with_sysroot(libpath.substr(pos, len));
pos = next_pos + 1;
}
while (next_pos != std::string::npos);
}
- else
- {
- // Even if they don't specify it, we add -L /lib and -L /usr/lib.
- // FIXME: We should only do this when configured in native mode.
- this->add_to_library_path_with_sysroot("/lib");
- this->add_to_library_path_with_sysroot("/usr/lib");
- }
// Parse the contents of -retain-symbols-file into a set.
if (this->retain_symbols_file())
}
}
+ // -Bgroup implies --unresolved-symbols=report-all.
+ if (this->Bgroup() && !this->user_set_unresolved_symbols())
+ this->set_unresolved_symbols("report-all");
+
+ // -shared implies --allow-shlib-undefined. Currently
+ // ---allow-shlib-undefined controls warnings issued based on the
+ // -symbol table. --unresolved-symbols controls warnings issued
+ // -based on relocations.
if (this->shared() && !this->user_set_allow_shlib_undefined())
this->set_allow_shlib_undefined(true);
if (this->pie() && this->relocatable())
gold_fatal(_("-pie and -r are incompatible"));
+ if (!this->shared())
+ {
+ if (this->filter() != NULL)
+ gold_fatal(_("-F/--filter may not used without -shared"));
+ if (this->any_auxiliary())
+ gold_fatal(_("-f/--auxiliary may not be used without -shared"));
+ }
+
// TODO: implement support for -retain-symbols-file with -r, if needed.
if (this->relocatable() && this->retain_symbols_file())
gold_fatal(_("-retain-symbols-file does not yet work with -r"));
"[0.0, 1.0)"),
this->hash_bucket_empty_fraction());
- if (this->implicit_incremental_ && !this->incremental())
+ if (this->implicit_incremental_ && this->incremental_mode_ == INCREMENTAL_OFF)
gold_fatal(_("Options --incremental-changed, --incremental-unchanged, "
"--incremental-unknown require the use of --incremental"));
+ // Check for options that are not compatible with incremental linking.
+ // Where an option can be disabled without seriously changing the semantics
+ // of the link, we turn the option off; otherwise, we issue a fatal error.
+
+ if (this->incremental_mode_ != INCREMENTAL_OFF)
+ {
+ if (this->relocatable())
+ gold_fatal(_("incremental linking is not compatible with -r"));
+ if (this->emit_relocs())
+ gold_fatal(_("incremental linking is not compatible with "
+ "--emit-relocs"));
+ if (this->has_plugins())
+ gold_fatal(_("incremental linking is not compatible with --plugin"));
+ if (this->gc_sections())
+ {
+ gold_warning(_("ignoring --gc-sections for an incremental link"));
+ this->set_gc_sections(false);
+ }
+ if (this->icf_enabled())
+ {
+ gold_warning(_("ignoring --icf for an incremental link"));
+ this->set_icf_status(ICF_NONE);
+ }
+ if (strcmp(this->compress_debug_sections(), "none") != 0)
+ {
+ gold_warning(_("ignoring --compress-debug-sections for an "
+ "incremental link"));
+ this->set_compress_debug_sections("none");
+ }
+ }
+
// FIXME: we can/should be doing a lot more sanity checking here.
}
// Add a file to the list.
-void
-Input_arguments::add_file(const Input_file_argument& file)
+Input_argument&
+Input_arguments::add_file(Input_file_argument& file)
{
- if (!this->in_group_)
- this->input_argument_list_.push_back(Input_argument(file));
- else
+ file.set_arg_serial(++this->file_count_);
+ if (this->in_group_)
{
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);
+ return this->input_argument_list_.back().group()->add_file(file);
}
+ if (this->in_lib_)
+ {
+ gold_assert(!this->input_argument_list_.empty());
+ gold_assert(this->input_argument_list_.back().is_lib());
+ return this->input_argument_list_.back().lib()->add_file(file);
+ }
+ this->input_argument_list_.push_back(Input_argument(file));
+ return this->input_argument_list_.back();
}
// Start a group.
{
if (this->in_group_)
gold_fatal(_("May not nest groups"));
+ if (this->in_lib_)
+ gold_fatal(_("may not nest groups in libraries"));
Input_file_group* group = new Input_file_group();
this->input_argument_list_.push_back(Input_argument(group));
this->in_group_ = true;
this->in_group_ = false;
}
+// Start a lib.
+
+void
+Input_arguments::start_lib(const Position_dependent_options& options)
+{
+ if (this->in_lib_)
+ gold_fatal(_("may not nest libraries"));
+ if (this->in_group_)
+ gold_fatal(_("may not nest libraries in groups"));
+ Input_file_lib* lib = new Input_file_lib(options);
+ this->input_argument_list_.push_back(Input_argument(lib));
+ this->in_lib_ = true;
+}
+
+// End a lib.
+
+void
+Input_arguments::end_lib()
+{
+ if (!this->in_lib_)
+ gold_fatal(_("lib end without lib start"));
+ this->in_lib_ = false;
+}
+
// Command_line options.
Command_line::Command_line()
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