Teresa Johnson a83c3f7879 [LTO] Prevent dead stripping and internalization of symbols with sections ... Summary: ELF linkers generate __start_<secname> and __stop_<secname> symbols when there is a value in a section <secname> where the name is a valid C identifier. If dead stripping determines that the values declared in section <secname> are dead, and we then internalize (and delete) such a symbol, programs that reference the corresponding start and end section symbols will get undefined reference linking errors. To fix this, add the section name to the IRSymtab entry when a symbol is defined in a specific section. Then use this in the gold-plugin to mark the symbol as external and visible from outside the summary when the section name is a valid C identifier. Reviewers: pcc Subscribers: mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D35639 llvm-svn: 309009		2017-07-25 19:42:32 +00:00
..
AArch64	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
AMDGPU	AMDGPU: Remove deprecated and unused elf definitions	2017-06-05 21:33:40 +00:00
ARM	Reland r298901 with modifications (reverted in r298932)	2017-04-03 21:50:04 +00:00
Inputs	[WebAssembly] Be consistent in generating trivial test input files	2017-07-10 20:43:26 +00:00
Lanai	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
Mips	[yaml2obj] Missed updating a few test cases in r273915	2016-06-27 20:02:49 +00:00
X86	[LTO] Prevent dead stripping and internalization of symbols with sections	2017-07-25 19:42:32 +00:00
ar-create.test	…
ar-error.test	…
archive-delete.test	…
archive-error-tmp.txt	…
archive-extract-dir.test	…
archive-extract.test	[llvm-ar] errors go on stderr and not on stdout.	2017-04-05 14:52:17 +00:00
archive-format.test	Archives require a symbol table on Solaris, even if empty.	2017-03-14 19:57:13 +00:00
archive-long-index.test	…
archive-move.test	…
archive-pad.test	Write to a temporary file in test instead of random file in the test directory.	2017-02-22 09:02:27 +00:00
archive-replace-pos.test	…
archive-symtab.test	Add support for Darwin’s static library table of contents with 64-bit offsets to the archive members.	2016-06-17 22:16:06 +00:00
archive-thin-create.test	llvm/test/Object/archive-thin-create.test: Make sure that %t is empty to stabilize the test.	2016-12-09 11:44:57 +00:00
archive-thin-paths.test	Object: replace backslashes with slashes in embedded relative thin archive paths on Windows.	2016-11-15 21:36:35 +00:00
archive-thin-read.test	Create thin archive in GNU format to fix test on OS X.	2016-03-31 23:07:50 +00:00
archive-toc.test	Prefix path when displaying thin archives.	2016-12-04 06:52:30 +00:00
archive-update.test	…
check_binary_output.ll	…
coff-archive-short.test	…
coff-archive.test	…
coff-empty-drectve.test	[COFF] Gracefully handle empty .drectve sections	2017-05-14 18:34:56 +00:00
coff-invalid.test	…
coff-weak-externals.test	llvm-objdump: support dumping AUX records for weak externals	2016-05-26 01:45:12 +00:00
corrupt.test	[ELF] Convert ELF.h to Expected<T>.	2016-11-16 05:10:28 +00:00
directory.ll	…
dllimport-globalref.ll	…
dllimport.ll	…
dyn-rel-relocation.test	…
dynamic-reloc.test	Add a testcase that would have found the bug in r263971.	2016-03-21 21:09:38 +00:00
elf-reloc-no-sym.test	…
elf-unknown-type.test	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
invalid.test	[llvm-readobj] Improve errors on invalid binary	2017-05-10 14:18:11 +00:00
kext.test	…
lit.local.cfg	…
macho-invalid.test	Fix a typo in an error message for a check of invalid Mach-O files where	2017-02-07 21:20:44 +00:00
mangle-ir.ll	…
mri-addlib.test	…
mri-addmod.test	…
mri-crlf.test	…
mri1.test	…
mri2.test	…
mri3.test	…
mri4.test	…
mri5.test	…
multi-module.ll	Object: Make IRObjectFile own multiple modules and enumerate symbols from all modules.	2016-12-13 20:20:17 +00:00
nm-archive.test	Change llvm-objdump, llvm-nm and llvm-size when reporting an object file error	2016-05-17 17:10:12 +00:00
nm-darwin-m.test	…
nm-error.test	…
nm-irix6.test	…
nm-pe-image.test	…
nm-shared-object.test	Object: Handle files without a dynamic symbol table.	2017-02-03 16:53:55 +00:00
nm-trivial-object.test	[WebAssembly] Be consistent in generating trivial test input files	2017-07-10 20:43:26 +00:00
nm-universal-binary.test	Add support for Darwin’s 64-bit universal files with 64-bit offsets and sizes for the objects.	2016-06-20 22:16:18 +00:00
nm-weak-global-macho.test	…
no-section-header-string-table.test	…
no-section-table.test	[llvm-readobj] - Teach readobj to print DT_FILTER dynamic tag in human readable form.	2017-07-14 16:00:16 +00:00
obj2yaml-coff-long-file-symbol.test	…
obj2yaml-coff-long-section-name.test	…
obj2yaml-coff-section-aux-symbol.test	…
obj2yaml-coff-weak-external.test	…
obj2yaml-invalid-reloc.test	[obj2yaml] Produce correct output for invalid relocations.	2017-01-26 23:12:53 +00:00
obj2yaml-sectiongroup.test	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
obj2yaml.test	[WebAssembly] Be consistent in generating trivial test input files	2017-07-10 20:43:26 +00:00
objc-imageinfo-coff.ll	test: fix hexagon build	2017-06-05 21:45:25 +00:00
objc-imageinfo-elf.ll	test: fix hexagon build	2017-06-05 21:45:25 +00:00
objc-imageinfo-macho.ll	test: fix hexagon build	2017-06-05 21:45:25 +00:00
objdump-export-list.test	…
objdump-file-header.test	…
objdump-no-sectionheaders.test	…
objdump-private-headers.test	…
objdump-reloc-shared.test	Revert "[llvm-objdump] Printing relocations in executable and shared object files. This partially reverts r215844 by removing test objdump-reloc-shared.test which stated GNU objdump doesn't print relocations, it does."	2016-03-21 20:59:15 +00:00
objdump-relocations.test	[WebAssembly] Be consistent in generating trivial test input files	2017-07-10 20:43:26 +00:00
objdump-section-content.test	…
objdump-sectionheaders.test	…
objdump-shndx.test	…
objdump-symbol-table.test	…
pr25877.test	…
readobj-absent.test	…
readobj-elf-versioning.test	…
readobj-shared-object.test	[llvm-readobj] - Teach readobj to print DT_FILTER dynamic tag in human readable form.	2017-07-14 16:00:16 +00:00
readobj.test	…
relocation-executable.test	…
simple-archive.test	…
size-trivial-macho.test	…
stackmap-dump.test	[Stackmap] Added callsite counts to emitted function information.	2016-09-14 20:22:03 +00:00
wasm-invalid-start.test	[WebAssembly] Fix validation of start function	2017-05-09 17:51:38 +00:00
yaml2obj-coff-invalid-alignment.test	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-coff-multi-doc.test	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-alignment.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-bits-endian.test	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-file-headers-with-e_flags.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-file-headers.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-multi-doc.test	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-rel-noref.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-rel.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-section-basic.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-section-invalid-size.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-symbol-LocalGlobalWeak.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-symbol-basic.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-elf-symbol-visibility.yaml	[yaml2obj] Remove --format option in favor of YAML tags	2016-06-27 19:53:53 +00:00
yaml2obj-readobj.test	…