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authorIan Lance Taylor <ian@airs.com>2011-07-15 21:43:08 +0000
committerIan Lance Taylor <ian@airs.com>2011-07-15 21:43:08 +0000
commitf1ddb6008e405707f7025369cfd7ec0ba442d128 (patch)
tree8cadf0eb5b35ef18245571f71b17ceb68418b9ea /gold/target-select.cc
parent9e8b7a03dd9c4754ff3f18ca13a1dad851f4ec58 (diff)
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* options.h (class General_options): Add --print-output-format.
Move -EL next to -EB, for better --help output. * target-select.cc: Include <cstdio>, "options.h", and "parameters.h". (Target_selector::do_target_bfd_name): New function. (print_output_format): New function. * target-select.h (class Target_selector): Update declarations. (Target_selector::target_bfd_name): New function. (print_output_format): Declare. * main.cc: Include "target-select.h". (main): Handle --print-output-format. * gold.cc: Include "target-select.h". (queue_initial_tasks): Handle --print-output-format when there are no input files. * parameters.cc (parameters_force_valid_target): Give a better error message if -EB/-EL does not match target. * freebsd.h (Target_selector_freebsd::do_target_bfd_name): New function.
Diffstat (limited to 'gold/target-select.cc')
-rw-r--r--gold/target-select.cc57
1 files changed, 57 insertions, 0 deletions
diff --git a/gold/target-select.cc b/gold/target-select.cc
index b8a9f40..9370a87 100644
--- a/gold/target-select.cc
+++ b/gold/target-select.cc
@@ -22,9 +22,12 @@
#include "gold.h"
+#include <cstdio>
#include <cstring>
#include "elfcpp.h"
+#include "options.h"
+#include "parameters.h"
#include "target-select.h"
namespace
@@ -80,6 +83,18 @@ Target_selector::set_target()
this->instantiated_target_ = this->do_instantiate_target();
}
+// If we instantiated TARGET, return the corresponding BFD name.
+
+const char*
+Target_selector::do_target_bfd_name(const Target* target)
+{
+ if (!this->is_our_target(target))
+ return NULL;
+ const char* my_bfd_name = this->bfd_name();
+ gold_assert(my_bfd_name != NULL);
+ return my_bfd_name;
+}
+
// Find the target for an ELF file.
Target*
@@ -157,4 +172,46 @@ supported_emulation_names(std::vector<const char*>* names)
p->supported_emulations(names);
}
+// Implement the --print-output-format option.
+
+void
+print_output_format()
+{
+ if (!parameters->target_valid())
+ {
+ // This case arises when --print-output-format is used with no
+ // input files. We need to come up with the right string to
+ // print based on the other options. If the user specified the
+ // format using a --oformat option, use that. That saves each
+ // target from having to remember the name that was used to
+ // select it. In other cases, we will just have to ask the
+ // target.
+ if (parameters->options().user_set_oformat())
+ {
+ const char* bfd_name = parameters->options().oformat();
+ Target* target = select_target_by_bfd_name(bfd_name);
+ if (target != NULL)
+ printf("%s\n", bfd_name);
+ else
+ gold_error(_("unrecognized output format %s"), bfd_name);
+ return;
+ }
+
+ parameters_force_valid_target();
+ }
+
+ const Target* target = &parameters->target();
+ for (Target_selector* p = target_selectors; p != NULL; p = p->next())
+ {
+ const char* bfd_name = p->target_bfd_name(target);
+ if (bfd_name != NULL)
+ {
+ printf("%s\n", bfd_name);
+ return;
+ }
+ }
+
+ gold_unreachable();
+}
+
} // End namespace gold.