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New plugin interface to get list of symbols wrapped with --wrap option.

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2018-02-22  Sriraman Tallam  <tmsriram@google.com>

	* plugin.cc (get_wrap_symbols): New plugin interface.
	(load): Add get_wrap_symbols to transfer vector.
	* plugin-api.h (ld_plugin_get_wrap_symbols): New plugin interface.
	* testsuite/plugin_test.c (onload): Call and check get_wrap_symbols
	interface.
	* testsuite/plugin_test_wrap_symbols.sh: New test script.
	* testsuite/plugin_test_wrap_symbols_1.cc: New file.
	* testsuite/plugin_test_wrap_symbols_2.cc: New file.
	* testsuite/Makefile.am (plugin_test_wrap_symbols): New test.
	* testsuite/Makefile.in: Regenerate.
This commit is contained in:
Sriraman Tallam
2018-02-22 13:56:46 -08:00
parent 0bccfb2994
commit 0b65c07b97
10 changed files with 261 additions and 10 deletions
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28
gold/plugin.cc
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@@ -170,6 +170,9 @@ get_input_section_size(const struct ld_plugin_section section,
static enum ld_plugin_status
register_new_input(ld_plugin_new_input_handler handler);
static enum ld_plugin_status
get_wrap_symbols(uint64_t *num_symbols, const char ***wrap_symbol_list);
};
#endif // ENABLE_PLUGINS
@@ -214,7 +217,7 @@ Plugin::load()
sscanf(ver, "%d.%d", &major, &minor);
// Allocate and populate a transfer vector.
const int tv_fixed_size = 30;
const int tv_fixed_size = 31;
int tv_size = this->args_.size() + tv_fixed_size;
ld_plugin_tv* tv = new ld_plugin_tv[tv_size];
@@ -352,6 +355,10 @@ Plugin::load()
tv[i].tv_tag = LDPT_REGISTER_NEW_INPUT_HOOK;
tv[i].tv_u.tv_register_new_input = register_new_input;
++i;
tv[i].tv_tag = LDPT_GET_WRAP_SYMBOLS;
tv[i].tv_u.tv_get_wrap_symbols = get_wrap_symbols;
++i;
tv[i].tv_tag = LDPT_NULL;
tv[i].tv_u.tv_val = 0;
@@ -1833,6 +1840,25 @@ get_input_section_size(const struct ld_plugin_section section,
return LDPS_OK;
}
static enum ld_plugin_status
get_wrap_symbols(uint64_t *count, const char ***wrap_symbols)
{
gold_assert(parameters->options().has_plugins());
*count = parameters->options().wrap_size();
if (*count == 0)
return LDPS_OK;
*wrap_symbols = new const char *[*count];
int i = 0;
for (options::String_set::const_iterator
it = parameters->options().wrap_begin();
it != parameters->options().wrap_end(); ++it, ++i) {
(*wrap_symbols)[i] = it->c_str();
}
return LDPS_OK;
}
// Specify the ordering of sections in the final layout. The sections are
// specified as (handle,shndx) pairs in the two arrays in the order in