summaryrefslogtreecommitdiffstats
path: root/libebl
Commit message (Collapse)AuthorAgeFilesLines
* ppc64: Add HTM SPRs support to readelfGustavo Romero2017-07-252-0/+5
| | | | | | | | | | Since POWER8, PowerPC 64 supports Hardware Transactional Memory, which has three special purpose registers associated to it: tfhar, tfiar, and texasr. This commit add HTM SPRs set as known note type so it's possible to use 'readelf --notes' to inspect the HTM SPRs in a coredump file generated in such a machines. Signed-off-by: Gustavo Romero <[email protected]>
* strip: Deal with ARM data marker symbols pointing to debug sections.Mark Wielaard2017-07-246-5/+75
| | | | | | | | | | | | | | | | | | | ARM data marker symbols "$d" indicate the start of a sequence of data items in a section. For data only sections no data marker symbol is necessary, but may be put pointing to the start of the section. binutils however has a bug which places a data marker symbol somewhere inside the section (at least for .debug_frame). https://sourceware.org/bugzilla/show_bug.cgi?id=21809 When strip finds a symbol pointing to a debug section that would be put into the .debug file then it will copy over the whole symbol table. This isn't necessary because the symbol is redundant. Add an ebl hook to recognize data marker symbols with implementations for arm and aarch64. Use it in strip to strip such symbols from the symbol table if they point to a debug section. Signed-off-by: Mark Wielaard <[email protected]>
* Make __attribute__ conditional in all installed headersUlf Hermann2017-05-022-3/+7
| | | | | | | | | | __attribute__ is a GNU extension. If we want to link against the libraries using a different compiler, it needs to be disabled. It was already disabled in libdw.h, and this patch extends this to the other headers. We move the defines to libelf.h as that is included in all the others. Signed-off-by: Ulf Hermann <[email protected]>
* Check for existence of mempcpyUlf Hermann2017-02-173-0/+7
| | | | | | If it doesn't exist, provide a definition based on memcpy. Signed-off-by: Ulf Hermann <[email protected]>
* dwelf: Add string table functions from ebl.Mark Wielaard2016-08-034-384/+14
| | | | | | | | | | | | | | | | Move the strtab functions from libebl to libdw. Programs often want to create ELF/DWARF string tables. We don't want (static) linking against ebl since those are internal functions that might change. This introduces dwelf_strtab_init, dwelf_strtab_add, dwelf_strtab_add_len, dwelf_strtab_finalize, dwelf_strent_off, dwelf_strent_str and dwelf_strtab_free. Documentation for each has been added to libdwelf.h. The add fucntion got a variant that takes the length explicitly and finalize was changed to return NULL on out of memory instead of aborting. All code and tests now uses the new functions. Signed-off-by: Mark Wielaard <[email protected]>
* Remove eu-ld and unused code.Mark Wielaard2016-08-039-908/+23
| | | | | | | | Nobody has hacked on eu-ld in a very long time. It didn't really work. And we didn't install it by default in the spec file. Remove sources, the build rules and any (now) unused code. Signed-off-by: Mark Wielaard <[email protected]>
* Add support for BPFRichard Henderson2016-06-283-1/+7
| | | | Signed-off-by: Richard Henderson <[email protected]>
* Add support for m68kAndreas Schwab2016-05-232-1/+5
| | | | Signed-off-by: Andreas Schwab <[email protected]>
* Add NT_ARM_SYSTEM_CALL aarch64 syscall regset.Mark Wielaard2016-02-151-0/+1
| | | | | | | | | Linux kernel 3.18 added the NT_ARM_SYSTEM_CALL regset for aarch64. Recognize and print this new core item. https://bugzilla.redhat.com/show_bug.cgi?id=1285613 Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Don't assume ELF notes are "GNU" when unknown, recognize "Go" notes.Mark Wielaard2016-02-152-1/+40
| | | | | | | | | | | | We used to assume any unknown ELF note provider name was "GNU" and didn't recognize any of the "Go" provider types. We now check the provider name explictly in ebl_object_note_type_name and recognize the following Go note names: PKGLIST, ABIHASH, DEPS and BUILDID. But there is no attempt yet in ebl_object_note to decode the description of these notes. https://bugzilla.redhat.com/show_bug.cgi?id=1295951 Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Fix missing brackets around if statement body.Mark Wielaard2016-01-092-180/+187
| | | | | | | | | | | | | | | | | | GCC6 [will have] a nice new warning that showed a real bug: elfutils/libebl/eblobjnote.c: In function ‘ebl_object_note’: elfutils/libebl/eblobjnote.c:135:5: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation] switch (type) ^~~~~~ elfutils/libebl/eblobjnote.c:45:3: note: ...this ‘if’ clause, but it is not if (! ebl->object_note (name, type, descsz, desc)) ^~ And indeed, it should have been under the if, but wasn't because of missing brackets. Added brackets (and reindent). Signed-off-by: Mark Wielaard <[email protected]>
* libdwfl: Use elf_compress[_gnu] to decompress string, symbol and reloc data.Mark Wielaard2016-01-062-1/+7
| | | | | | | | | This makes usage of the libdwfl symbol functions work out of the box even when some sections (string, symbol or xndx) are compressed. For ET_REL files this makes relocations just work by making sure the target section is decompressed first before relocations are applied. Signed-off-by: Mark Wielaard <[email protected]>
* libebl: new backend attribute ra_offset.Jose E. Marchesi2016-01-034-0/+24
| | | | | | | | Some backends need to fine-tune the return address as fetched from the corresponding CFI register. This patch adds a new backend attribute ra_offset and the corresponding ebl_ra_offset getter function. Signed-off-by: Jose E. Marchesi <[email protected]>
* Use -fPIC instead of -fpic when generating PIC code.Jose E. Marchesi2015-10-062-1/+6
| | | | | | | This avoids relocation overflows in sparc/sparc64 targets while linking, where the reachable data using -fpic is only 4kb. Signed-off-by: Jose E. Marchesi <[email protected]>
* Remove old-style function definitions.Mark Wielaard2015-09-2342-180/+60
| | | | | | | We already require -std=gnu99 and old-style function definitions might hide some compiler warnings. Signed-off-by: Mark Wielaard <[email protected]>
* Remove redundant NULL tests.Chih-Hung Hsieh2015-09-145-5/+15
| | | | | | | | GCC6 and Clang give warnings on redundant NULL tests of parameters that are declared with __nonnull_attribute__. Signed-off-by: Chih-Hung Hsieh <[email protected]> Signed-off-by: Mark Wielaard <[email protected]>
* Replace some K&R function definitions with ansi-C definitions.Chih-Hung Hsieh2015-09-073-5/+8
| | | | | Signed-off-by: Chih-Hung Hsieh <[email protected]> Signed-off-by: Mark Wielaard <[email protected]>
* libebl: SHT_(INIT|FINI|PREINIT)_ARRAY are valid targets for relocation.Mark Wielaard2015-06-142-5/+18
| | | | | | | Seen in run-elflint-self.sh for size.o when build with --enable-gcov. https://bugzilla.redhat.com/show_bug.cgi?id=1230798 Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Don't blow up stack when processing large NT_GNU_ABI_TAG.Mark Wielaard2015-05-272-2/+22
| | | | | | | Normally an NT_GNU_ABI_TAG is large, just 4 words (16 bytes). Only use stack allocated conversion buf for small (max 16 words) notes. Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Use static number for array stack allocation in openbackend.Mark Wielaard2015-05-272-2/+13
| | | | | | | | | Help the compiler see we stack allocate a small array. Add assert to check no machine prefix is ever larger than 16. Current maximum number is 7. This prevents gcc warning about possible unbounded stack usage with -Wstack-usage. Signed-off-by: Mark Wielaard <[email protected]>
* s/Really, not guarantee/Really, no guarantee/gMark Wielaard2015-01-271-1/+1
| | | | Signed-off-by: Mark Wielaard <[email protected]>
* libebl.h: Add comment from README that this is completely UNSUPPORTED.Mark Wielaard2015-01-272-1/+19
| | | | | | | Make it really, really clear that the libebl interface is NOT source and NOT abi compatible and we will break any users. Signed-off-by: Mark Wielaard <[email protected]>
* Use elf_getphdrnum instead of accessing ehdr->e_phnum directly.Mark Wielaard2014-11-265-9/+14
| | | | | | | Using elf_getphdrnum lets us handle ELF files that use more than PN_XNUM phdrs. And guards against some corrupt files. Signed-off-by: Mark Wielaard <[email protected]>
* Check elf_strptr didn't fail getting section name.Mark Wielaard2014-11-172-2/+6
| | | | | | | | Since elf_strptr can fail and return NULL we should always check the result before usage. Debug sections are only handled by section name, so make sure the name actually exists. Signed-off-by: Mark Wielaard <[email protected]>
* libebl: Add ebl_func_addr_mask plus ARM backend implementation.Mark Wielaard2014-06-225-4/+34
| | | | | | | | | | | | | | The ARM EABI says that the zero bit of function symbol st_value indicates whether the symbol points to a THUMB or ARM function. Also the return value address in an unwind will contain the same extra bit to indicate whether to return to a regular ARM or THUMB function. Add a new ebl function to mask off such bits and turn a function value into a function address so that we get the actual value that a function symbol or return address points to. It isn't easily possible to reuse the existing ebl_resolve_sym_value for this purpose, so we end up with another hook that can be used from dwfl_module_getsym, handle_cfi and elflint. Signed-off-by: Mark Wielaard <[email protected]>
* backends: Add ebl_check_reloc_target_type.Mark Wielaard2014-05-196-3/+74
| | | | | | | | | And implement for arm and ia64. Both have special section types that are valid targets for a reloc. Both refer to unwind data. elflint now just calls ebl_check_reloc_target_type instead of hard coding the expected section types. Signed-off-by: Mark Wielaard <[email protected]>
* libdwfl: Introduce dwfl_module_getsym_info and dwfl_module_addrinfo.Mark Wielaard2013-12-206-1/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some arches like ppc64 use function descriptor values instead of function addresses causing matching of names and addresses to fail when using dwfl_module_getsym or dwfl_module_addrsym. Add ebl hook to resolve any function descriptor values found in non-ET_REL modules. The new function dwfl_module_getsym_info doesn't adjust the symbol value in any way, but returns the adjusted and/or resolved address associated with the symbol separately. The new function dwfl_module_addrinfo resolves against both the address associated with the symbol (which could be the function entry address) value and the adjusted st_value. So that it is easy to resolve and match either function descriptors and/or function entry addresses. Since these new functions also return more information they replace the dwfl_module_getsym_elf and dwfl_module_addrsym_elf functions that never made it into a released elfutils version. addr2line and readelf now use the new functions when looking up functions names. addr2line will now also display the section the address was found in when given -x. Extra testcases were added for both addr2line and the dwflsyms testscase. Signed-off-by: Mark Wielaard <[email protected]>
* unwinder: s390 and s390xJan Kratochvil2013-12-186-1/+143
| | | | Signed-off-by: Jan Kratochvil <[email protected]>
* unwinder: ppc and ppc64Jan Kratochvil2013-12-155-2/+65
| | | | Signed-off-by: Jan Kratochvil <[email protected]>
* Support AArch64 architecturePetr Machata2013-11-262-1/+6
| | | | Signed-off-by: Petr Machata <[email protected]>
* Code cleanup: Remove const in prototypeJan Kratochvil2013-11-142-4/+7
| | | | Signed-off-by: Jan Kratochvil <[email protected]>
* Unwinder for x86*.Jan Kratochvil2013-11-076-5/+97
| | | | | Signed-off-by: Jan Kratochvil <[email protected]> Signed-off-by: Mark Wielaard <[email protected]>
* backends: ppc_abi_cfi reg1 use DW_CFA_val_offset not DW_CFA_val_expression.Mark Wielaard2013-10-072-0/+10
| | | | | | | | | | | | | | | Register rules using expressions are stored using an offset from the start of the .eh_frame or .debug_frame ELF section data. Since abi_cfi rules aren't stored in those ELF sections they should use neither DW_CFA_expression nor DW_CFA_val_expression. The only backend that used DW_CFA_val_expression was ppc_cfi.c. It was easier to express the same rule using DW_CFA_val_offset than to change the code to handle register rules using expressions. On most architectures this did work by accident. See the definition of struct dwarf_frame_register value in libdw/cfi.h to see why. But on ia64 the abi_cfi data and actual frame data were placed too far apart and caused a crash in tests/run-addrcfi.sh for ppc32. Signed-off-by: Mark Wielaard <[email protected]>
* Recognize names of some new core note types in ebl_core_note_type_namePetr Machata2013-09-272-1/+11
| | | | Signed-off-by: Petr Machata <[email protected]>
* eblsectionstripp.c (ebl_section_strip_p): Check shdr_l is not NULL.Mark Wielaard2013-09-252-2/+6
| | | | Signed-off-by: Mark Wielaard <[email protected]>
* Updates for Automake 1.13.Mark Wielaard2013-04-262-1/+5
| | | | | | | autoreconf will install config/test-driver, ignore it. Update gettext m4 and po files to version 0.18.2. Use AM_CPPFLAGS instead of INCLUDES. All changes are backward compatible with Automake 1.11.
* libebl/Jan Kratochvil2012-10-124-3/+13
| | | | | | | | | | 2012-10-12 Jan Kratochvil <[email protected]> * ebl-hooks.h (abi_cfi): Extend its comment for return value. * eblopenbackend.c (default_abi_cfi): Return -1. * libebl.h (ebl_abi_cfi): Extend its comment for return value. Signed-off-by: Jan Kratochvil <[email protected]>
* Handle new core note types in EBLPetr Machata2012-09-172-1/+18
| | | | Signed-off-by: Petr Machata <[email protected]>
* Add support for Tilera TILE-Gx processor.Jeff Kenton2012-08-242-0/+5
| | | | Signed-off-by: Jeff Kenton <[email protected]>
* Add low-level support for .debug_macro.Mark Wielaard2012-06-272-0/+6
| | | | Signed-off-by: Mark Wielaard <[email protected]>
* Update name, license and contributor policy.Mark Wielaard2012-06-0551-2016/+969
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Change name from "Red Hat elfutils" to "elfutils". * Update license of standalone tools and test from GPLv2 to GPLv3+. * Change license of libraries from GPLv2+exception to GPLv2/LGPLv3+. * Add Developer Certificate of Origin based contributor policy. top-level: - COPYING: Upgraded from GPLv2 to GPLv3. - CONTRIBUTING, COPYING-GPLv2, COPYING-LGPLv3: New files. - NEWS: Added note about new contribution and license policy. - Makefile.am: Updated to GPLv3, added new files to EXTRA_DIST. - configure.ac: Update to GPLv3, changed AC_INIT name to 'elfutils'. backends, lib, libasm, libcpu, libdw, libdwfl, libebl, libelf: - All files updated to GPLv2/LGPLv3+. Except some very small files (<5 lines) which didn't have any headers at all before, the linker .maps files and the libcpu/defs files which only contain data and libelf/elf.h which comes from glibc and is under LGPLv2+. config: - elfutils.spec.in: Add new License: headers and new %doc files. - Update all license headers to GPLv2/LGPLv3+ for files used by libs. src, tests: - All files updated to GPLv3+. Except for the test bz2 data files, the linker maps and script files and some very small files (<5 lines) that don't have any headers. Signed-off-by: Richard Fontana <[email protected]> Signed-off-by: Mark Wielaard <[email protected]>
* Remove .mtn-ignore and .cvsignore files.Mark Wielaard2012-06-051-1/+0
| | | | We use .gitignore these days.
* Add support for printing SDT elf notes.Mark Wielaard2011-04-266-10/+118
| | | | | | | | | | | | | libebl/ * libebl.h (ebl_object_note_type_name): Add const char *name arg. * eblhooks.h (object_note_type_name): Likewise. * eblopenbackend.c (default_object_note_type_name): Likewise. * eblobjnotetypename.c (ebl_object_note_type_name): Likewise. And print version if name is "stapsdt". * eblobjnote.c (ebl_object_note): Add output for "stapsdt" notes. src/ * readelf.c (handle_notes_data): Call ebl_object_note_type_name with note name.
* Fix doubled words.Marek Polacek2011-04-161-1/+1
|
* Fix typo in TLSDESC_GOT.Marek Polacek2011-03-212-1/+5
|
* Add new ebl_check_st_other_bits function.upstream/mpolacek/autotestMark Wielaard2011-03-116-3/+93
|
* Consider .gdb_index as a debugging section.Roland McGrath2010-07-072-0/+6
|
* Clean up and consolidate automake magic to reduce duplication and to work ↵Roland McGrath2010-02-152-23/+9
| | | | with --disable-dependency-tracking.
* Make readelf -n check note name strings, handle "VMCOREINFO" flavor.Roland McGrath2010-01-045-19/+27
|
* Clean up NT_GNU_GOLD_VERSION printing.Roland McGrath2009-10-142-2/+6
|
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-27 04:10:44 +0000