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2010-09-08 Rafael Espindola <espindola@google.com>

Browse source 
* arm.cc (do_finalize_sections): Create the __exidx_start and
	__exdix_end symbols even when the section is missing.
This commit is contained in:
Rafael Ávila de Espíndola 2010-09-08 18:31:35 +00:00
parent 9bd89d67b6
commit 731ca54a85
2 changed files with 48 additions and 26 deletions
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5
gold/ChangeLog
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@ -1,3 +1,8 @@
2010-09-08 Rafael Espindola <espindola@google.com>
* arm.cc (do_finalize_sections): Create the __exidx_start and
__exdix_end symbols even when the section is missing.
2010-09-08 Nick Clifton <nickc@redhat.com>
* README: Remove claim that MEMORY is not supported.

69
gold/arm.cc
View file

@ -8426,33 +8426,50 @@ Target_arm<big_endian>::do_finalize_sections(
// Handle the .ARM.exidx section.
Output_section* exidx_section = layout->find_output_section(".ARM.exidx");
if (exidx_section != NULL
&& exidx_section->type() == elfcpp::SHT_ARM_EXIDX
&& !parameters->options().relocatable())
{
// Create __exidx_start and __exdix_end symbols.
symtab->define_in_output_data("__exidx_start", NULL,
Symbol_table::PREDEFINED,
exidx_section, 0, 0, elfcpp::STT_OBJECT,
elfcpp::STB_GLOBAL, elfcpp::STV_HIDDEN, 0,
false, true);
symtab->define_in_output_data("__exidx_end", NULL,
Symbol_table::PREDEFINED,
exidx_section, 0, 0, elfcpp::STT_OBJECT,
elfcpp::STB_GLOBAL, elfcpp::STV_HIDDEN, 0,
true, true);
// For the ARM target, we need to add a PT_ARM_EXIDX segment for
// the .ARM.exidx section.
if (!layout->script_options()->saw_phdrs_clause())
{
gold_assert(layout->find_output_segment(elfcpp::PT_ARM_EXIDX, 0, 0)
== NULL);
Output_segment* exidx_segment =
layout->make_output_segment(elfcpp::PT_ARM_EXIDX, elfcpp::PF_R);
exidx_segment->add_output_section_to_nonload(exidx_section,
elfcpp::PF_R);
}
if (!parameters->options().relocatable())
{
if (exidx_section != NULL
&& exidx_section->type() == elfcpp::SHT_ARM_EXIDX)
{
// Create __exidx_start and __exdix_end symbols.
symtab->define_in_output_data("__exidx_start", NULL,
Symbol_table::PREDEFINED,
exidx_section, 0, 0, elfcpp::STT_OBJECT,
elfcpp::STB_GLOBAL, elfcpp::STV_HIDDEN,
0, false, true);
symtab->define_in_output_data("__exidx_end", NULL,
Symbol_table::PREDEFINED,
exidx_section, 0, 0, elfcpp::STT_OBJECT,
elfcpp::STB_GLOBAL, elfcpp::STV_HIDDEN,
0, true, true);
// For the ARM target, we need to add a PT_ARM_EXIDX segment for
// the .ARM.exidx section.
if (!layout->script_options()->saw_phdrs_clause())
{
gold_assert(layout->find_output_segment(elfcpp::PT_ARM_EXIDX, 0,
0)
== NULL);
Output_segment* exidx_segment =
layout->make_output_segment(elfcpp::PT_ARM_EXIDX, elfcpp::PF_R);
exidx_segment->add_output_section_to_nonload(exidx_section,
elfcpp::PF_R);
}
}
else
{
symtab->define_as_constant("__exidx_start", NULL,
Symbol_table::PREDEFINED,
0, 0, elfcpp::STT_OBJECT,
elfcpp::STB_GLOBAL, elfcpp::STV_HIDDEN, 0,
true, false);
symtab->define_as_constant("__exidx_end", NULL,
Symbol_table::PREDEFINED,
0, 0, elfcpp::STT_OBJECT,
elfcpp::STB_GLOBAL, elfcpp::STV_HIDDEN, 0,
true, false);
}
}
// Create an .ARM.attributes section if we have merged any attributes