FreeChainXenon/binutils-gdb
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add new plugin hooks to support querying section alignment and size.

Browse source 
include/
2016-03-03  Than McIntosh <thanm@google.com>

	* plugin-api.h: Add new hooks to the plugin transfer vector to
	to support querying section alignment and section size.
	(ld_plugin_get_input_section_alignment): New hook.
	(ld_plugin_get_input_section_size): New hook.
	(ld_plugin_tag): Add LDPT_GET_INPUT_SECTION_ALIGNMENT
	and LDPT_GET_INPUT_SECTION_SIZE.
	(ld_plugin_tv): Add tv_get_input_section_alignment and
	tv_get_input_section_size.

gold/
2016-03-03  Than McIntosh  <thanm@google.com>

	* plugin.cc (Plugin::load): Include hooks for get_input_section_size
	and get_input_section_alignment in transfer vector.
	(get_input_section_alignment): New function.
	(get_input_section_size): New function.
	* testsuite/Makefile.am: Add plugin_layout_with_alignment.sh test.
	* testsuite/Makefile.in: [Regenerate.]
	* testsuite/plugin_section_alignment.cc: New test file.
	* testsuite/plugin_layout_with_alignment.cc: New test file.
	* testsuite/plugin_layout_with_alignment.sh: New test file.
This commit is contained in:
Cary Coutant 2016-03-03 12:09:06 -08:00
parent 95ecdfbfcb
commit 82838bd626
7 changed files with 530 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

26
include/plugin-api.h
View file

@ -345,6 +345,26 @@ enum ld_plugin_status
const struct ld_plugin_section * section_list,
unsigned int num_sections);
/* The linker's interface for retrieving the section alignment requirement
of a specific section in an object. This interface should only be invoked in the
claim_file handler. This function sets *ADDRALIGN to the ELF sh_addralign
value of the input section. */
typedef
enum ld_plugin_status
(*ld_plugin_get_input_section_alignment) (const struct ld_plugin_section section,
unsigned int *addralign);
/* The linker's interface for retrieving the section size of a specific section
in an object. This interface should only be invoked in the claim_file handler.
This function sets *SECSIZE to the ELF sh_size
value of the input section. */
typedef
enum ld_plugin_status
(*ld_plugin_get_input_section_size) (const struct ld_plugin_section section,
uint64_t *secsize);
enum ld_plugin_level
{
LDPL_INFO,
@ -385,7 +405,9 @@ enum ld_plugin_tag
LDPT_GET_SYMBOLS_V2 = 25,
LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS = 26,
LDPT_UNIQUE_SEGMENT_FOR_SECTIONS = 27,
LDPT_GET_SYMBOLS_V3 = 28
LDPT_GET_SYMBOLS_V3 = 28,
LDPT_GET_INPUT_SECTION_ALIGNMENT = 29,
LDPT_GET_INPUT_SECTION_SIZE = 30
};
/* The plugin transfer vector. */
@ -417,6 +439,8 @@ struct ld_plugin_tv
ld_plugin_allow_section_ordering tv_allow_section_ordering;
ld_plugin_allow_unique_segment_for_sections tv_allow_unique_segment_for_sections;
ld_plugin_unique_segment_for_sections tv_unique_segment_for_sections;
ld_plugin_get_input_section_alignment tv_get_input_section_alignment;
ld_plugin_get_input_section_size tv_get_input_section_size;
} tv_u;
};