#include "gold.h"
+#include <cerrno>
#include <cstdlib>
#include <cstring>
+#include <fstream>
#include <vector>
#include <iostream>
#include <sys/stat.h>
namespace options
{
+// 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
+// class Position_dependent_options.
+static bool ready_to_register = false;
+
// This global variable is set up as General_options is constructed.
static std::vector<const One_option*> registered_options;
void
One_option::register_option()
{
+ if (!ready_to_register)
+ return;
+
registered_options.push_back(this);
// We can't make long_options a static Option_map because we can't
const int shortname_as_int = static_cast<int>(this->shortname);
gold_assert(shortname_as_int >= 0 && shortname_as_int < 128);
if (this->shortname != '\0')
- short_options[shortname_as_int] = this;
+ {
+ gold_assert(short_options[shortname_as_int] == NULL);
+ short_options[shortname_as_int] = this;
+ }
}
void
option_name, arg);
}
+void
+parse_int(const char* option_name, const char* arg, int* retval)
+{
+ char* endptr;
+ *retval = strtol(arg, &endptr, 0);
+ if (*endptr != '\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)
{
void
General_options::parse_version(const char* opt, const char*, Command_line*)
{
- gold::print_version(opt[0] == '-' && opt[1] == 'v');
- ::exit(EXIT_SUCCESS);
+ bool print_short = (opt[0] == '-' && opt[1] == 'v');
+ gold::print_version(print_short);
+ this->printed_version_ = true;
+ if (!print_short)
+ ::exit(EXIT_SUCCESS);
}
void
General_options::parse_V(const char*, const char*, Command_line*)
{
gold::print_version(true);
+ this->printed_version_ = true;
printf(_(" Supported targets:\n"));
std::vector<const char*> supported_names;
gold::supported_target_names(&supported_names);
General_options::parse_library(const char*, const char* arg,
Command_line* cmdline)
{
- Input_file_argument file(arg, true, "", false, *this);
+ Input_file_argument::Input_file_type type;
+ const char *name;
+ if (arg[0] == ':')
+ {
+ type = Input_file_argument::INPUT_FILE_TYPE_SEARCHED_FILE;
+ name = arg + 1;
+ }
+ else
+ {
+ type = Input_file_argument::INPUT_FILE_TYPE_LIBRARY;
+ name = arg;
+ }
+ Input_file_argument file(name, type, "", false, *this);
cmdline->inputs().add_file(file);
}
General_options::parse_just_symbols(const char*, const char* arg,
Command_line* cmdline)
{
- Input_file_argument file(arg, false, "", true, *this);
+ Input_file_argument file(arg, Input_file_argument::INPUT_FILE_TYPE_FILE,
+ "", true, *this);
cmdline->inputs().add_file(file);
}
+// Handle --section-start.
+
+void
+General_options::parse_section_start(const char*, const char* arg,
+ Command_line*)
+{
+ const char* eq = strchr(arg, '=');
+ if (eq == NULL)
+ {
+ gold_error(_("invalid argument to --section-start; "
+ "must be SECTION=ADDRESS"));
+ return;
+ }
+
+ std::string section_name(arg, eq - arg);
+
+ ++eq;
+ const char* val_start = eq;
+ if (eq[0] == '0' && (eq[1] == 'x' || eq[1] == 'X'))
+ eq += 2;
+ if (*eq == '\0')
+ {
+ gold_error(_("--section-start address missing"));
+ return;
+ }
+ uint64_t addr = 0;
+ hex_init();
+ for (; *eq != '\0'; ++eq)
+ {
+ if (!hex_p(*eq))
+ {
+ gold_error(_("--section-start argument %s is not a valid hex number"),
+ val_start);
+ return;
+ }
+ addr <<= 4;
+ addr += hex_value(*eq);
+ }
+
+ this->section_starts_[section_name] = addr;
+}
+
+// Look up a --section-start value.
+
+bool
+General_options::section_start(const char* secname, uint64_t* paddr) const
+{
+ if (this->section_starts_.empty())
+ return false;
+ std::map<std::string, uint64_t>::const_iterator p =
+ this->section_starts_.find(secname);
+ if (p == this->section_starts_.end())
+ return false;
+ *paddr = p->second;
+ return true;
+}
+
void
General_options::parse_static(const char*, const char*, Command_line*)
{
}
// The function add_excluded_libs() in ld/ldlang.c of GNU ld breaks up a list
-// of names seperated by commas or semi-colons and puts them in a linked list.
+// of names seperated 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.
if (p != excluded_libs_.end())
return true;
+ // First strip off any directories in name.
+ const char *basename = lbasename(name.c_str());
+
// Try finding an exact match.
- p = excluded_libs_.find(name);
+ p = excluded_libs_.find(std::string(basename));
if (p != excluded_libs_.end())
return true;
// Try matching NAME without ".a" at the end.
- size_t length = name.length();
+ size_t length = strlen(basename);
if ((length >= 2)
- && (name[length-2] == '.')
- && (name[length-1] == 'a'))
+ && (basename[length - 2] == '.')
+ && (basename[length - 1] == 'a'))
{
- p = excluded_libs_.find(name.substr(0, length - 2));
+ p = excluded_libs_.find(std::string(basename, length - 2));
if (p != excluded_libs_.end())
return true;
}
return false;
}
+// Recognize input and output target names. The GNU linker accepts
+// these with --format and --oformat. This code is intended to be
+// minimally compatible. In practice for an ELF target this would be
+// the same target as the input files; that name always start with
+// "elf". Non-ELF targets would be "srec", "symbolsrec", "tekhex",
+// "binary", "ihex".
+
+General_options::Object_format
+General_options::string_to_object_format(const char* arg)
+{
+ if (strncmp(arg, "elf", 3) == 0)
+ return gold::General_options::OBJECT_FORMAT_ELF;
+ else if (strcmp(arg, "binary") == 0)
+ return gold::General_options::OBJECT_FORMAT_BINARY;
+ else
+ {
+ gold::gold_error(_("format '%s' not supported; treating as elf "
+ "(supported formats: elf, binary)"),
+ arg);
+ return gold::General_options::OBJECT_FORMAT_ELF;
+ }
+}
+
+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;
+}
+
} // End namespace gold.
namespace
usage();
}
-// Recognize input and output target names. The GNU linker accepts
-// these with --format and --oformat. This code is intended to be
-// minimally compatible. In practice for an ELF target this would be
-// the same target as the input files; that name always start with
-// "elf". Non-ELF targets would be "srec", "symbolsrec", "tekhex",
-// "binary", "ihex".
-
-gold::General_options::Object_format
-string_to_object_format(const char* arg)
-{
- if (strncmp(arg, "elf", 3) == 0)
- return gold::General_options::OBJECT_FORMAT_ELF;
- else if (strcmp(arg, "binary") == 0)
- return gold::General_options::OBJECT_FORMAT_BINARY;
- else
- {
- gold::gold_error(_("format '%s' not supported; treating as elf "
- "(supported formats: elf, binary)"),
- arg);
- return gold::General_options::OBJECT_FORMAT_ELF;
- }
-}
-
// If the default sysroot is relocatable, try relocating it based on
// the prefix FROM.
{
General_options::General_options()
- : execstack_status_(General_options::EXECSTACK_FROM_INPUT), static_(false),
- do_demangle_(false), plugins_(),
- incremental_disposition_(INCREMENTAL_CHECK), implicit_incremental_(false)
+ : printed_version_(false),
+ execstack_status_(EXECSTACK_FROM_INPUT),
+ icf_status_(ICF_NONE),
+ static_(false),
+ do_demangle_(false),
+ plugins_(NULL),
+ dynamic_list_(),
+ incremental_disposition_(INCREMENTAL_CHECK),
+ implicit_incremental_(false),
+ excluded_libs_(),
+ symbols_to_retain_(),
+ section_starts_()
{
+ // Turn off option registration once construction is complete.
+ gold::options::ready_to_register = false;
}
General_options::Object_format
General_options::format_enum() const
{
- return string_to_object_format(this->format());
+ return General_options::string_to_object_format(this->format());
}
General_options::Object_format
General_options::oformat_enum() const
{
- return string_to_object_format(this->oformat());
+ return General_options::string_to_object_format(this->oformat());
}
// Add the sysroot, if any, to the search paths.
else if (this->noexecstack())
this->set_execstack_status(EXECSTACK_NO);
+ // icf_status_ is a three-state variable; update it based on the
+ // value of this->icf().
+ if (strcmp(this->icf(), "none") == 0)
+ this->set_icf_status(ICF_NONE);
+ else if (strcmp(this->icf(), "safe") == 0)
+ this->set_icf_status(ICF_SAFE);
+ else
+ this->set_icf_status(ICF_ALL);
+
// Handle the optional argument for --demangle.
if (this->user_set_demangle())
{
this->add_to_library_path_with_sysroot("/usr/lib");
}
+ // Parse the contents of -retain-symbols-file into a set.
+ if (this->retain_symbols_file())
+ {
+ std::ifstream in;
+ in.open(this->retain_symbols_file());
+ if (!in)
+ gold_fatal(_("unable to open -retain-symbols-file file %s: %s"),
+ this->retain_symbols_file(), strerror(errno));
+ std::string line;
+ std::getline(in, line); // this chops off the trailing \n, if any
+ while (in)
+ {
+ if (!line.empty() && line[line.length() - 1] == '\r') // Windows
+ line.resize(line.length() - 1);
+ this->symbols_to_retain_.insert(line);
+ std::getline(in, line);
+ }
+ }
+
if (this->shared() && !this->user_set_allow_shlib_undefined())
this->set_allow_shlib_undefined(true);
// Now that we've normalized the options, check for contradictory ones.
if (this->shared() && this->is_static())
gold_fatal(_("-shared and -static are incompatible"));
+ if (this->shared() && this->pie())
+ gold_fatal(_("-shared and -pie are incompatible"));
if (this->shared() && this->relocatable())
gold_fatal(_("-shared and -r are incompatible"));
+ if (this->pie() && this->relocatable())
+ gold_fatal(_("-pie and -r are incompatible"));
+
+ // 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"));
if (this->oformat_enum() != General_options::OBJECT_FORMAT_ELF
- && (this->shared() || this->relocatable()))
- gold_fatal(_("binary output format not compatible with -shared or -r"));
+ && (this->shared()
+ || this->pie()
+ || this->relocatable()))
+ gold_fatal(_("binary output format not compatible "
+ "with -shared or -pie or -r"));
if (this->user_set_hash_bucket_empty_fraction()
&& (this->hash_bucket_empty_fraction() < 0.0
{
}
+// Pre_options is the hook that sets the ready_to_register flag.
+
+Command_line::Pre_options::Pre_options()
+{
+ gold::options::ready_to_register = true;
+}
+
// Process the command line options. For process_one_option, i is the
// index of argv to process next, and must be an option (that is,
// start with a dash). The return value is the index of the next
this->position_options_.copy_from_options(this->options());
if (no_more_options || argv[i][0] != '-')
{
- Input_file_argument file(argv[i], false, "", false,
- this->position_options_);
+ Input_file_argument file(argv[i],
+ Input_file_argument::INPUT_FILE_TYPE_FILE,
+ "", false, this->position_options_);
this->inputs_.add_file(file);
++i;
}
this->options_.finalize();
}
+// Finalize the version script options and return them.
+
+const Version_script_info&
+Command_line::version_script()
+{
+ this->options_.finalize_dynamic_list();
+ Version_script_info* vsi = this->script_options_.version_script_info();
+ vsi->finalize();
+ return *vsi;
+}
+
} // End namespace gold.
projects / deliverable / binutils-gdb.git / blobdiff