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ld: Add -plugin-save-temps

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Add -plugin-save-temps to store plugin intermediate files permanently.
It can be used to exam the final input object files generated from IR
inputs.

	* NEWS: Mention -plugin-save-temps.
	* ld.h (ld_config_type): Add plugin_save_temps.
	* ld.texi: Document -plugin-save-temps.
	* ldlex.h (option_values): Add OPTION_PLUGIN_SAVE_TEMPS.
	* lexsup.c (ld_options): Add -plugin-save-temps.
	(parse_args): Handle OPTION_PLUGIN_SAVE_TEMPS.
	* plugin.c (plugin_call_cleanup): Don't call plugin
	cleanup_handler for -plugin-save-temps.
This commit is contained in:
H.J. Lu
2020-10-26 04:36:59 -07:00
parent 900c0f0aa3
commit d9511b64b8
6 changed files with 27 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
ld/NEWS
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@@ -1,5 +1,7 @@
-*- text -*-
* Add -plugin-save-temps to store plugin intermediate files permanently.
Changes in 2.42:
* Add -z mark-plt/-z nomark-plt options to x86-64 ELF linker to mark PLT

3
ld/ld.h
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@@ -300,6 +300,9 @@ typedef struct
/* The size of the hash table to use. */
unsigned long hash_table_size;
/* If set, store plugin intermediate files permanently. */
bool plugin_save_temps;
/* If set, print discarded sections in map file output. */
bool print_map_discarded;

4
ld/ld.texi
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@@ -1140,6 +1140,10 @@ Omit debugger symbol information (but not all symbols) from the output file.
Omit (or do not omit) global symbols defined in discarded sections.
Enabled by default.
@kindex -plugin-save-temps
@item -plugin-save-temps
Store the plugin ``temporary'' intermediate files permanently.
@kindex -t
@kindex --trace
@cindex input files, displaying

1
ld/ldlex.h
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@@ -146,6 +146,7 @@ enum option_values
#if BFD_SUPPORTS_PLUGINS
OPTION_PLUGIN,
OPTION_PLUGIN_OPT,
OPTION_PLUGIN_SAVE_TEMPS,
#endif /* BFD_SUPPORTS_PLUGINS */
OPTION_DEFAULT_SCRIPT,
OPTION_PRINT_OUTPUT_FORMAT,

6
ld/lexsup.c
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@@ -187,6 +187,9 @@ static const struct ld_option ld_options[] =
'\0', N_("PLUGIN"), N_("Load named plugin"), ONE_DASH },
{ {"plugin-opt", required_argument, NULL, OPTION_PLUGIN_OPT},
'\0', N_("ARG"), N_("Send arg to last-loaded plugin"), ONE_DASH },
{ {"plugin-save-temps", no_argument, NULL, OPTION_PLUGIN_SAVE_TEMPS},
'\0', NULL, N_("Store plugin intermediate files permanently"),
ONE_DASH },
{ {"flto", optional_argument, NULL, OPTION_IGNORE},
'\0', NULL, N_("Ignored for GCC LTO option compatibility"),
ONE_DASH },
@@ -1211,6 +1214,9 @@ parse_args (unsigned argc, char **argv)
if (plugin_opt_plugin_arg (optarg))
einfo (_("%F%P: bad -plugin-opt option\n"));
break;
case OPTION_PLUGIN_SAVE_TEMPS:
config.plugin_save_temps = true;
break;
#endif /* BFD_SUPPORTS_PLUGINS */
case 'q':
link_info.emitrelocations = true;

19
ld/plugin.c
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@@ -1367,14 +1367,17 @@ plugin_call_cleanup (void)
{
if (curplug->cleanup_handler && !curplug->cleanup_done)
{
enum ld_plugin_status rv;
curplug->cleanup_done = true;
called_plugin = curplug;
rv = (*curplug->cleanup_handler) ();
called_plugin = NULL;
if (rv != LDPS_OK)
info_msg (_("%P: %s: error in plugin cleanup: %d (ignored)\n"),
curplug->name, rv);
if (!config.plugin_save_temps)
{
enum ld_plugin_status rv;
curplug->cleanup_done = true;
called_plugin = curplug;
rv = (*curplug->cleanup_handler) ();
called_plugin = NULL;
if (rv != LDPS_OK)
info_msg (_("%P: %s: error in plugin cleanup: %d (ignored)\n"),
curplug->name, rv);
}
dlclose (curplug->dlhandle);
}
curplug = curplug->next;