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* incremental.cc (Incremental_inputs::report_command_line): Ignore

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--incremental-patch option.
	* layout.cc (Free_list::allocate): Extend allocation beyond original
	end if enabled.
	(Layout::make_output_section): Mark sections that should get
	patch space.
	* options.cc (parse_percent): New function.
	* options.h (parse_percent): New function.
	(DEFINE_percent): New macro.
	(General_options): Add --incremental-patch option.
	* output.cc (Output_section::Output_section): Initialize new data
	members.
	(Output_section::add_input_section): Print section name when out
	of patch space.
	(Output_section::add_output_section_data): Likewise.
	(Output_section::set_final_data_size): Add patch space when
	doing --incremental-full.
	(Output_section::do_reset_address_and_file_offset): Remove patch
	space.
	(Output_segment::set_section_list_addresses): Print debug output
	only if --incremental-update.
	* output.h (Output_section::set_is_patch_space_allowed): New function.
	(Output_section::is_patch_space_allowed_): New data member.
	(Output_section::patch_space_): New data member.
	* parameters.cc (Parameters::incremental_full): New function.
	* parameters.h (Parameters::incremental_full): New function
	* testsuite/Makefile.am (incremental_test_2): Add test for
	--incremental-patch option.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/two_file_test_1_v1.cc (t1, t2, t3): Add comments.
	(t18): Remove function body.
This commit is contained in:
Cary Coutant
2011-07-06 21:19:32 +00:00
parent 438640d112
commit 9fbd3822ad
12 changed files with 175 additions and 42 deletions
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26
gold/layout.cc
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@@ -168,6 +168,11 @@ Free_list::allocate(off_t len, uint64_t align, off_t minoff)
off_t start = p->start_ > minoff ? p->start_ : minoff;
start = align_address(start, align);
off_t end = start + len;
if (end > p->end_ && p->end_ == this->length_ && this->extend_)
{
this->length_ = end;
p->end_ = end;
}
if (end <= p->end_)
{
if (p->start_ + 3 >= start && p->end_ <= end + 3)
@@ -186,6 +191,12 @@ Free_list::allocate(off_t len, uint64_t align, off_t minoff)
return start;
}
}
if (this->extend_)
{
off_t start = align_address(this->length_, align);
this->length_ = start + len;
return start;
}
return -1;
}
@@ -1413,6 +1424,21 @@ Layout::make_output_section(const char* name, elfcpp::Elf_Word type,
&& strcmp(name + strlen(name) - 3, "str") == 0)
this->have_stabstr_section_ = true;
// During a full incremental link, we add patch space to most
// PROGBITS and NOBITS sections. Flag those that may be
// arbitrarily padded.
if ((type == elfcpp::SHT_PROGBITS || type == elfcpp::SHT_NOBITS)
&& order != ORDER_INTERP
&& order != ORDER_INIT
&& order != ORDER_PLT
&& order != ORDER_FINI
&& order != ORDER_RELRO_LAST
&& order != ORDER_NON_RELRO_FIRST
&& strcmp(name, ".ctors") != 0
&& strcmp(name, ".dtors") != 0
&& strcmp(name, ".jcr") != 0)
os->set_is_patch_space_allowed();
// If we have already attached the sections to segments, then we
// need to attach this one now. This happens for sections created
// directly by the linker.