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2024-04-04Memory corruption with USE_MMAPAlan Modra1-23/+32
mips64-linux-gnuabi64 +FAIL: GOT page 4 (two files) mipsel-linux-gnu +FAIL: GOT page 4 (two files) mipsisa32el-linux-gnu +FAIL: GOT page 4 (two files) mips-linux-gnu +FAIL: GOT page 4 (two files) powerpc64-freebsd +FAIL: relocatable relaxing large powerpc64le-linux-gnu +FAIL: relocatable relaxing large powerpc64-linux-gnu +FAIL: relocatable relaxing large powerpc-eabisim +FAIL: relocatable relaxing large powerpc-eabivle +FAIL: relocatable relaxing large powerpc-freebsd +FAIL: relocatable relaxing large powerpcle-elf +FAIL: relocatable relaxing large powerpc-linux-gnu +FAIL: relocatable relaxing large * elflink.c (bfd_elf_final_link): Heed bed->use_mmap when sizing buffers, not just USE_MMAP.
2024-04-04Re: USE_MMAP fuzzed object file attacksAlan Modra2-8/+6
I committed a broken patch. * aoutx.h (aout_get_external_symbols): Remove wrong #else and unneeded casts. * pdp11.c (aout_get_external_symbols): Likewise.
2024-04-04Fix uninitialised variable errorsAlan Modra2-12/+12
Commit c6291d749aec introduced a number of errors, found by clang. elf.c:456:7: error: variable 'alloc_ext_size' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (_bfd_mul_overflow (symcount, extsym_size, &amt)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ elf.c:464:7: error: variable 'alloc_extshndx_size' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (bfd_seek (ibfd, pos, SEEK_SET) != 0 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ elflink.c:2837:11: error: variable 'alloc1_size' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized] if (internal_relocs == NULL) ^~~~~~~~~~~~~~~~~~~~~~~ elflink.c:12595:16: error: variable 'ext_size' set but not used [-Werror,-Wunused-but-set-variable] size_t ext_size = 0; * elf.c (bfd_elf_get_elf_syms): Fix use of uninitialised variables. * elflink.c (_bfd_elf_link_info_read_relocs): Likewise. (bfd_elf_final_link): Fix set but not used warning.
2024-04-04USE_MMAP fuzzed object file attacksAlan Modra2-77/+84
If mmap is used without sanity checking, then we'll get a SIGBUS if an access is done to the mmap'd memory corresponding to a page past end of file. * aoutx.h (aout_get_external_symbols): Check that mmap regions are within file contents. Catch stringsize overflow. (some_aout_object_p): Don't clear already zeroed fields. Tidy. * pdp11.c: As for aoutx.h. Copy some fixes too.
2024-04-04Automatic date update in version.inGDB Administrator1-1/+1
2024-04-03elf: Add _bfd_elf_link_m[un]map_section_contentsH.J. Lu3-12/+82
To copy input section contents, add _bfd_elf_link_mmap_section_contents and _bfd_elf_link_munmap_section_contents to mmap in the input sections. * elf-bfd.h (_bfd_elf_link_mmap_section_contents): New. (_bfd_elf_link_munmap_section_contents): Likewise. * elf.c (elf_mmap_section_contents): New. (_bfd_elf_mmap_section_contents): Use it. (_bfd_elf_link_mmap_section_contents): New. (_bfd_elf_link_munmap_section_contents): Likewise. * elflink.c (elf_link_input_bfd): Call _bfd_elf_link_mmap_section_contents instead of bfd_get_full_section_contents. Call _bfd_elf_link_munmap_section_contents to munmap the section contents. (bfd_elf_final_link): When mmap is used, initialize max_contents_size to _bfd_minimum_mmap_size and increase it for compressed or linker created sections or sections whose rawsize != size.
2024-04-03elf: Always keep symbol table and relocation info for eh_frameH.J. Lu1-16/+27
When --no-keep-memory is used, the symbol table and relocation info for eh_frame are freed after they are retrieved for each text section in the input object. If an input object has many text sections, the same data is retrieved and freed many times which can take a very long time. Update _bfd_elf_gc_mark to keep the symbol table and relocation info for eh_frame to avoid it. Data to link the 3.5GB clang executable in LLVM 17 debug build on Linux/x86-64 with 32GB RAM is: before after improvement user 86.31 86.44 -0.2% system 8.77 8.63 1.6% total 95.58 96.81 -1.3% maximum set(GB) 13.1 13.1 0% page faults 3024752 3028699 -1.3% and data to link the 275M cc1plus executable in GCC 14 stage 1 build is: user 5.49 5.46 -0.5% system 0.73 0.73 0% total 6.26 6.25 0.3% maximum set(MB) 964 964 0% page faults 235173 235796 -0.3% The memory usage impact is minimum and the link time of the Rust binary in https://sourceware.org/bugzilla/show_bug.cgi?id=31466 is reduced from 500+ seconds to 1.44 seconds, a 300x speedup. PR ld/31466 * elflink.c (init_reloc_cookie): Add a bool argument, keep_memory, for keeping memory. Always keep memory if keep_memory is true. (init_reloc_cookie_rels): Likewise (init_reloc_cookie_for_section): Add a bool argument for keeping memory and pass it to init_reloc_cookie and init_reloc_cookie_rels. (_bfd_elf_gc_mark_reloc): Pass false to _bfd_elf_gc_mark. (_bfd_elf_gc_mark): Pass true to init_reloc_cookie_for_section for the eh_frame section. Pass false to init_reloc_cookie_for_section for other sections. (_bfd_elf_gc_mark_extra_sections): Add Add a bool argument for keeping memory and pass it to _bfd_elf_gc_mark. (bfd_elf_parse_eh_frame_entries): Pass false to init_reloc_cookie and init_reloc_cookie_rels. (bfd_elf_gc_sections): Pass false to init_reloc_cookie_for_section and _bfd_elf_gc_mark. (bfd_elf_discard_info): Pass false to init_reloc_cookie_for_section and init_reloc_cookie.
2024-04-03elf: Don't cache symbol nor relocation tables with mmapH.J. Lu6-55/+59
During a "-j 8" LLVM 17 debug build on a machine with 32GB RAM and 16GB swap, ld was killed by kernel because of out of memory: [79437.949336] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/user.slice/user-1000.slice/session-9.scope,task=ld,pid=797431,uid=1000 [79437.949349] Out of memory: Killed process 797431 (ld) total-vm:9219600kB, anon-rss:6558156kB, file-rss:1792kB, shmem-rss:0kB, UID:1000 pgtables:17552kB oom_score_adj:0 Don't cache symbol nor relocation tables if they are mapped in. Data to link the 3.5GB clang executable in LLVM 17 debug build on Linux/x86-64 with 32GB RAM is: stdio mmap improvement user 86.73 87.02 -0.3% system 9.55 9.21 3.6% total 100.40 97.66 0.7% maximum set(GB) 17.34 13.14 24% page faults 4047667 3042877 25% and data to link the 275M cc1plus executable in GCC 14 stage 1 build is: user 5.41 5.44 -0.5% system 0.80 0.76 5% total 6.25 6.26 -0.2% maximum set(MB) 1323 968 27% page faults 323451 236371 27% These improve the overall system performance for parallel build by reducing memory usage and page faults. Also rename _bfd_link_keep_memory to _bfd_elf_link_keep_memory. Since the --no-keep-memory linker option causes: https://sourceware.org/bugzilla/show_bug.cgi?id=31458 this is opt-in by each backend. bfd/ * elf32-i386.c (elf_i386_scan_relocs): Remove _bfd_link_keep_memory. * elf64-x86-64.c (elf_x86_64_scan_relocs): Likewise. * elflink.c (_bfd_elf_link_keep_memory): New. (_bfd_elf_link_iterate_on_relocs): Replace _bfd_link_keep_memory with _bfd_elf_link_keep_memory. (elf_link_add_object_symbols): Likewise. (init_reloc_cookie): Likewise. (init_reloc_cookie_rels): Likewise. * libbfd-in.h (_bfd_link_keep_memory): Removed. * linker.c (_bfd_link_keep_memory): Likewise. * libbfd.h: Regenerated.
2024-04-03elf: Use mmap to map in symbol and relocation tablesH.J. Lu5-41/+98
Add _bfd_mmap_read_temporary to mmap in symbol tables and relocations whose sizes >= 4 * page size. For the final link, allocate an external relocation buffer of 4 * page size to avoid using mmap and munmap on smaller relocation sections. Since _bfd_mmap_read_temporary allocates buffer as needed, its callers don't need to. When mmap is used to map in all ELF sections, data to link the 3.5GB clang executable in LLVM 17 debug build on Linux/x86-64 with 32GB RAM is: stdio mmap improvement user 84.79 85.27 -0.5% system 10.95 9.09 17% total 97.91 94.90 3% page faults 4837944 4033778 17% and data to link the 275M cc1plus executable in GCC 14 stage 1 build is: user 5.31 5.33 -0.4% system 0.86 0.76 12% total 6.19 6.13 1% page faults 361273 322491 11% * elf.c (bfd_elf_get_elf_syms): Don't allocate buffer for external symbol table. Replace bfd_read with _bfd_mmap_read_temporary. * elflink.c (elf_link_read_relocs_from_section): Add 2 arguments to return mmap memory address and size. (_bfd_elf_link_info_read_relocs): Don't allocate buffer for external relocation information. Replace bfd_read with _bfd_mmap_read_temporary. (bfd_elf_final_link): Cache external relocations up to _bfd_minimum_mmap_size bytes when mmap is used. * libbfd.c (_bfd_mmap_read_temporary): New. * libbfd-in.h (_bfd_mmap_read_temporary): Likewise. * libbfd.h: Regenerated.
2024-04-03elf: Add _bfd_elf_m[un]map_section_contentsH.J. Lu16-39/+212
Add _bfd_elf_mmap_section_contents and _bfd_elf_munmap_section_contents. A backend must opt-in to use mmap. It should replace bfd_malloc_and_get_section -> _bfd_elf_mmap_section_contents free -> _bfd_elf_munmap_section_contents on section contents. * compress.c (bfd_get_full_section_contents): Don't allocate buffer if mmapped_p is true. * elf-bfd.h (elf_backend_data): Add use_mmap. (bfd_elf_section_data): Add contents_addr and contents_size. (_bfd_elf_mmap_section_contents): New. (_bfd_elf_munmap_section_contents): Likewise. * elf-eh-frame.c (_bfd_elf_parse_eh_frame): Replace bfd_malloc_and_get_section and free with _bfd_elf_mmap_section_contents and _bfd_elf_munmap_section_contents on section contents. * elf-sframe.c (_bfd_elf_parse_sframe): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Replace bfd_malloc_and_get_section and free with _bfd_elf_mmap_section_contents and _bfd_elf_munmap_section_contents on section contents. (_bfd_elf_print_private_bfd_data): Likewise. (_bfd_elf_mmap_section_contents): New. (_bfd_elf_munmap_section_contents): Likewise. * elf32-i386.c (elf_i386_scan_relocs): Replace bfd_malloc_and_get_section and free with _bfd_elf_mmap_section_contents and _bfd_elf_munmap_section_contents on section contents. * elf64-x86-64.c (elf_x86_64_scan_relocs): Likewise. (elf_x86_64_get_synthetic_symtab): Likewise. * elfcode.h (elf_checksum_contents): Likewise. * elflink.c (elf_link_add_object_symbols): Likewise. (bfd_elf_get_bfd_needed_list): Likewise. * elfxx-target.h (elf_backend_use_mmap): New. (elfNN_bed): Add elf_backend_use_mmap. * elfxx-x86.c (elf_x86_size_or_finish_relative_reloc): Replace bfd_malloc_and_get_section and free with _bfd_elf_mmap_section_contents and _bfd_elf_munmap_section_contents on section contents. (_bfd_x86_elf_get_synthetic_symtab): Replace free with _bfd_elf_munmap_section_contents. * elfxx-x86.h (elf_backend_use_mmap): New. * libbfd.c: Include "elf-bfd.h". (_bfd_generic_get_section_contents): Call bfd_mmap_local for mmapped_p. * opncls.c (_bfd_delete_bfd): Also munmap ELF section contents. * section.c (asection): Add mmapped_p. (BFD_FAKE_SECTION): Updated. (bfd_malloc_and_get_section): Add a sanity check for not mmapped_p. * bfd-in2.h: Regenerated.
2024-04-03elf: Use mmap to map in read-only sectionsH.J. Lu12-43/+328
There are many linker input files in LLVM debug build with huge string sections. All these string sections can be treated as read-only. But linker copies all of them into memory which consumes huge amount of memory and slows down linker significantly. Add _bfd_mmap_readonly_persistent and _bfd_mmap_readonly_temporary to mmap in reado-only sections with size >= 4 * page size. NB: All string sections in valid ELF inputs must be null terminated. There is no need to terminate it again and string sections are mmapped as read-only. * bfd.c (bfd_mmapped_entry): New. (bfd_mmapped): Likewise. (bfd): Add mmapped. * bfdwin.c (bfd_get_file_window): Use _bfd_pagesize. * cache.c (cache_bmmap): Remove pagesize_m1 and use pagesize_m1 instead. * elf.c (bfd_elf_get_str_section): Call _bfd_mmap_readonly_persistent instead of _bfd_alloc_and_read. Don't terminate the string section again. (get_hash_table_data): Call _bfd_mmap_readonly_temporary and _bfd_munmap_readonly_temporary instead of _bfd_malloc_and_read and free. (_bfd_elf_get_dynamic_symbols): Call _bfd_mmap_readonly_persistent instead of _bfd_alloc_and_read. Don't terminate the string section again. Call _bfd_mmap_readonly_temporary and _bfd_munmap_readonly_temporary instead of _bfd_malloc_and_read and free. (_bfd_elf_slurp_version_tables): Call _bfd_mmap_readonly_temporary and _bfd_munmap_readonly_temporary instead of _bfd_malloc_and_read and free. * elflink.c (bfd_elf_link_record_dynamic_symbol): Use bfd_malloc to get the unversioned symbol. * libbfd-in.h (_bfd_pagesize): New. (_bfd_pagesize_m1): Likewise. (_bfd_minimum_mmap_size): Likewise. (_bfd_mmap_readonly_persistent): Likewise. (_bfd_mmap_readonly_temporary): Likewise. (_bfd_munmap_readonly_temporary): Likewise. * libbfd.c (bfd_allocate_mmapped_page): New. (_bfd_mmap_readonly_temporary): Likewise. (_bfd_munmap_readonly_temporary): Likewise. (_bfd_mmap_readonly_persistent): Likewise. (_bfd_pagesize): Likewise. (_bfd_pagesize_m1): Likewise. (_bfd_minimum_mmap_size): Likewise. (bfd_init_pagesize): Likewise. * lynx-core.c (lynx_core_file_p): Use _bfd_pagesize. * opncls.c (_bfd_delete_bfd): Munmap tracked mmapped memories. * sysdep.h (MAP_ANONYMOUS): New. Define if undefined. * bfd-in2.h: Regenerated. * libbfd.h: Likewise.
2024-04-03Automatic date update in version.inGDB Administrator1-1/+1
2024-04-02PR31458, FAIL: MIPS eh-frame 3 with --no-keep-memoryH.J. Lu3-10/+22
PR 31458 bfd/ * elf-bfd.h (_bfd_elf_link_read_relocs), (_bfd_elf_link_info_read_relocs): Constify section. * elflink.c: Likewise. * elfxx-mips.c (_bfd_mips_elf_eh_frame_address_size): Read relocs again in case --no-keep-memory. ld/ * testsuite/ld-mips-elf/mips-elf.exp: Run --no-keep-memory version of eh-frame3 test.
2024-04-02PR 30569, delete _bfd_mips_elf_early_size_sectionsAlan Modra5-56/+34
PR30569 was triggered by a patch of mine 6540edd52cc0 moving the call to always_size_sections in bfd_elf_size_dynamic_sections earlier, made to support the x86 DT_RELR implementation. This broke mips16 code handling stubs when --export-dynamic is passed to the linker, because numerous symbols then became dynamic after always_size_sections. The mips backend fiddles with symbols in its always_size_sections. Maciej in 902e9fc76a0e had moved the call to always_size_sections to after the export-dynamic code. Prior to that, Nathan in 04c3a75556c0 moved it before the exec stack code, back to the start of bfd_elf_size_dynamic_sections which was where Ian put it originally in ff12f303355b. So the call has moved around a little. I'm leaving it where it is, and instead calling mips_elf_check_symbols from late_size_sections (the old size_dynamic_sections) which is now always called. In fact, the whole of _bfd_mips_elf_early_size_sections can be merged into _bfd_mips_elf_late_size_sections.
2024-04-02PR 30569, always call elf_backend_size_dynamic_sectionsAlan Modra60-333/+340
This largely mechanical patch is preparation for a followup patch. For quite some time I've thought that it would be useful to call elf_backend_size_dynamic_sections even when no dynamic objects are seen by the linker. That's what this patch does, with some renaming. There are no functional changes to the linker, just a move of the dynobj test in bfd_elf_size_dynamic_sections to target backend functions, replacing the asserts/aborts already there. No doubt some of the current always_size_sections functions could be moved to size_dynamic_sections but I haven't made that change. Because both hooks are now always called, I have renamed always_size_sections to early_size_sections and size_dynamic_sections to late_size_sections. I condisdered calling late_size_sections plain size_sections, since this is the usual target dynamic section sizing hook, but decided that searching the sources for "size_sections" would then hit early_size_sections and other functions.
2024-04-02Automatic date update in version.inGDB Administrator1-1/+1
2024-04-01hppa: Implement PA 2.0 symbolic relocations for long displacementsJohn David Anglin1-1/+45
The PA 2.0 architecture introduced several new load and store instructions with long displacements. These include floating point loads and stores for word mode, and integer and floating point loads and stores for double words. Currently, ld does not correctly support symbolic relocations for these instructions. If these are used, ld applies the standard R_PARISC_DPREL14R relocation and corrupts the instruction. This change uses bfd_hppa_insn2fmt to determine the correct relocation format. We need to check the computed displacement as the immediate value used in these instruction must be a multiple of 4 or 8 depending on whether the access is for a word or double word. A misaligned offset can potentially occur if the symbol is not properly aligned or if $global$ (the global pointer) is not double word aligned. $global$ is provided as a .data section start symbol. The patch adjusts elf.sc and hppalinux.sh to align .data to a 8-byte boundary in non-shared and non-pie links. 2024-04-01 John David Anglin <danglin@gcc.gnu.org> PR ld/31503 bfd/ChangeLog: * elf32-hppa.c (final_link_relocate): Output ld/ChangeLog: * emulparams/hppalinux.sh (DATA_SECTION_ALIGNMENT): Define. * scripttempl/elf.sc: Align .data section to DATA_SECTION_ALIGNMENT when relocating.
2024-04-01LoongArch: Fix the issue of excessive relocation generated by GD and IELulu Cai1-86/+93
Currently, whether GD and IE generate dynamic relocation is determined by SYMBOL_REFERENCES_LOCAL and bfd_link_executable. This results in dynamic relocations still being generated in some situations where dynamic relocations are not necessary (such as the undefined weak symbol in static links). We use RLARCH_TLS_GD_IE_NEED_DYN_RELOC macros to determine whether GD/IE needs dynamic relocation. If GD/IE requires dynamic relocation, set need_reloc to true and indx to be a dynamic index. At the same time, some test cases were modified to use regular expression matching instead of complete disassembly matching.
2024-04-01Automatic date update in version.inGDB Administrator1-1/+1
2024-03-31BFD: Fix the bug of R_LARCH_AGLIN caused by discard sectionmengqinggang4-1/+29
To represent the first and third expression of .align, R_LARCH_ALIGN need to associate with a symbol. We define a local symbol for R_LARCH_AGLIN. But if the section of the local symbol is discarded, it may result in a undefined symbol error. Instead, we use the section name symbols, and this does not need to add extra symbols. During partial linking (ld -r), if the symbol associated with a relocation is STT_SECTION type, the addend of relocation needs to add the section output offset. We prevent it for R_LARCH_ALIGN. The elf_backend_data.rela_normal only can set all relocations of a target to rela_normal. Add a new function is_rela_normal to elf_backend_data, it can set part of relocations to rela_normal.
2024-03-31Automatic date update in version.inGDB Administrator1-1/+1
2024-03-30Automatic date update in version.inGDB Administrator1-1/+1
2024-03-29Automatic date update in version.inGDB Administrator1-1/+1
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2024-03-26Don't claim a fat IR object if no IR object should be claimedH.J. Lu6-31/+87
When the linker sees an input object containing nothing but IR during rescan, it should ignore it (LTO phase is over). But if the input object is a fat IR object, which has non-IR code as well, it should be used to resolve references as if it did not contain any IR at all. This patch adds lto_type to bfd and linker avoids claiming a fat IR object if no IR object should be claimed. bfd/ PR ld/23935 * archive.c (_bfd_compute_and_write_armap): Check bfd_get_lto_type instead of lto_slim_object. * elflink.c (elf_link_add_object_symbols): Likewise. * bfd.c (bfd_lto_object_type): New. (bfd): Remove lto_slim_object and add lto_type. (bfd_get_lto_type): New function. * elf.c (lto_section): Removed. (_bfd_elf_make_section_from_shdr): Don't set lto_slim_object. * format.c: (lto_section): New. (bfd_set_lto_type): New function. (bfd_check_format_matches): Call bfd_set_lto_type. * bfd-in2.h: Regenerated. binutils/ PR ld/23935 * nm.c (display_rel_file): Check bfd_get_lto_type instead of lto_slim_object. ld/ PR ld/23935 * ldmain.c (add_archive_element): Don't claim a fat IR object if no IR object should be claimed. * testsuite/ld-plugin/lto.exp (pr20103): Adjust fat IR test. Add PR ld/23935 test. * testsuite/ld-plugin/pr23935a.c: New file. * testsuite/ld-plugin/pr23935b.c: Likewise.
2024-03-26Automatic date update in version.inGDB Administrator1-1/+1
2024-03-25bfd: make _bfd_section_size_insane part of the public APIAndrew Burgess5-10/+10
If a BFD user is making use of a function like bfd_get_section_contents to read a section into a pre-allocated buffer, then that BFD user might also want to make use of _bfd_section_size_insane prior to allocating the buffer they intend to use in order to validate that the buffer size that plan to allocate is sane. This commit makes _bfd_section_size_insane public, by renaming it to bfd_section_size_insane. I've updated the existing uses within bfd/, I don't believe this function is used outside of bfd/ currently. One place that I plan to make use of this function is in gdb/gdb_bfd.c, in the function gdb_bfd_get_full_section_contents. This change isn't included in this commit, but will come later if/when this has been merged into bfd. There should be no change in behaviour after this commit. bfd/ * bfd-in2.h (bfd_section_size_insane): Add declaration. * compress.c (bfd_get_full_section_contents): Update for new name of _bfd_section_size_insane. (bfd_init_section_compress_status): Likewise. * dwarf2.c (read_section): Likewise. (_bfd_dwarf2_slurp_debug_info): Likewise. * libbfd.h (_bfd_section_size_insane): Remove declaration. * section.c (_bfd_section_size_insane): Rename to ... (bfd_section_size_insane): ... this. binutils/ * readelf.c (uncompress_section_contents): Update comment to account for new name of _bfd_section_size_insane.
2024-03-25Automatic date update in version.inGDB Administrator1-1/+1
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2024-03-19Fix free of unallocated memory in the BFD library's compression code.Nick Clifton1-0/+4
PR 31455
2024-03-19LoongArch: Add relaxation for R_LARCH_CALL36mengqinggang1-0/+59
This relaxation is effective for both macro instructions (call36, tail36) and explicit relocation instructions (pcaddu18i + jirl). call36 f -> bl f R_LARCH_CALL36 -> R_LARCH_B26 tail36 $t0, f -> b f R_LARCH_CALL36 -> R_LARCH_B26
2024-03-19Automatic date update in version.inGDB Administrator1-1/+1
2024-03-18bfd: add missing include <time.h>Clément Chigot2-0/+2
bdfio.c is defining bfd_get_current_time which is returning a time_t. This type is defined in time.h and thus, must be included in bfd main header to avoid undefined type when include bfd.h. Note that most of the time, <time.h> is pulled by <sys/stat.h> already included in bfd.h. That's why it went unnoticed.
2024-03-18Fix compiling bfd/vms-lib.c for a 32-bit host.Nick Clifton1-2/+2
2024-03-18Automatic date update in version.inGDB Administrator1-1/+1
2024-03-17Automatic date update in version.inGDB Administrator1-1/+1
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2024-03-15Automatic date update in version.inGDB Administrator1-1/+1
2024-03-14Automatic date update in version.inGDB Administrator1-1/+1
2024-03-13bfd: Use size_t in the BFD mmap interfaceH.J. Lu5-16/+16
Change the size type in the BFD mmap interface from bfd_size_type to size_t to be consistent with the size type of the host mmap interface. * bfdio.c (bfd_iovec): Change the bmmap size type to size_t. (bfd_mmap): Likewise. (memory_bmmap): Likewise. * cache.c (cache_bmmap): Change the bmmap size type to size_t. * opncls.c (opncls_bmmap): Change the bmmap size type to size_t. * bfd-in2.h: Regenerated. * libbfd.h: Likewise.
2024-03-13bfd: Use MAP_FAILED for mmap failureH.J. Lu6-19/+19
Use MAP_FAILED, instead of ((void *) -1), for mmap failure and use ((void *) -1) only if MAP_FAILED is undefined. * bfdio.c (bfd_mmap): Replace (void *) -1 with MAP_FAILED for mmap failure. * bfdwin.c: Don't include <sys/mman.h>. (MAP_FILE): Removed. (bfd_get_file_window): Replace (void *) -1 with MAP_FAILED for mmap failure. * cache.c: Don't include <sys/mman.h>. (cache_bmmap): Replace (void *) -1 with MAP_FAILED for mmap failure. * opncls.c (opncls_bmmap): Likewise. * sysdep.h: Include <sys/mman.h> if HAVE_MMAP is define. (MAP_FILE): New. Defined as 0 if undefined. (MAP_FAILED): New. Defined as ((void *) -1) if undefined.
2024-03-13bfd: Don't call bfd_write with 0 sizeH.J. Lu1-1/+1
There is no need to call bfd_write with 0 size. * elf-strtab.c (_bfd_elf_strtab_emit): Don't call bfd_write with 0 size.
2024-03-13RISC-V: Add -march=help for gasHau Hsu2-0/+49
Use -march=help for gas to print all supported extensions and versions. Here is part of the output of `as -march=help`: All available -march extensions for RISC-V: e 1.9 i 2.1, 2.0 m 2.0 a 2.1, 2.0 f 2.2, 2.0 d 2.2, 2.0 q 2.2, 2.0 c 2.0 v 1.0 h 1.0 zicbom 1.0 zicbop 1.0 ... This patch assumes that the supported extensions with the same versions are listed together. For example: static struct riscv_supported_ext riscv_supported_std_ext[] = { ... {"i", ISA_SPEC_CLASS_20191213, 2, 1, 0 }, {"i", ISA_SPEC_CLASS_20190608, 2, 1, 0 }, {"i", ISA_SPEC_CLASS_2P2, 2, 0, 0 }, ... }; For the "i" extension, 2.1.0 with different spec class are listed together. This patch records the previous printed extension and version. If the current extension and version are the same as the previous one, skip printing. bfd/ * elfxx-riscv.c (riscv_print_extensions): New function. Print available extensions and versions. * elfxx-riscv.h (riscv_print_extensions): New declaration. gas/ * gas/config/tc-riscv.c (md_parse_option): Parse 'help' keyword in -march option to print available extensions and versions. * testsuite/gas/riscv/march-help.l: New testcase for -march=help. * testsuite/gas/riscv/riscv.exp: Updated.
2024-03-13Automatic date update in version.inGDB Administrator1-1/+1
2024-03-12Automatic date update in version.inGDB Administrator1-1/+1