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2025-01-14elf: Add GNU_PROPERTY_MEMORY_SEAL gnu propertyAdhemerval Zanella1-0/+1
The GNU_PROPERTY_MEMORY_SEAL gnu property is a way to mark binaries to be memory sealed by the loader, to avoid further changes of PT_LOAD segments (such as unmapping or change permission flags). This is done along with Linux kernel (the mseal syscall [1]), and C runtime supports to instruct the kernel on the correct time during program startup (for instance, after RELRO handling). This support is added along the glibc support to handle the new gnu property [2]. This is a opt-in security features, like other security hardening ones like NX-stack or RELRO. The new property is ignored if present on ET_REL objects, and only added on ET_EXEC/ET_DYN if the linker option is used. A gnu property is used instead of DT_FLAGS_1 flag to allow memory sealing to work with ET_EXEC without PT_DYNAMIC support (at least on glibc some ports still do no support static-pie). [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8be7258aad44b5e25977a98db136f677fa6f4370 [2] https://sourceware.org/pipermail/libc-alpha/2024-September/160291.html Change-Id: Id47fadabecd24be0e83cff45653f7ce9a900ecf4
2025-01-14ld: Add LTO and none-LTO output support for ld -rH.J. Lu1-0/+1
Link with mixed IR/non-IR objects * 2 kinds of object files o non-IR object file has * non-IR sections o IR object file has * IR sections * non-IR sections * The output of "ld -r" with mixed IR/non-IR objects should work with: o Compilers/linkers with IR support. o Compilers/linkers without IR support. * Add the mixed object file which has o IR sections o non-IR sections: * Object codes from IR sections. * Object codes from non-IR object files. o Object-only section: * With section name ".gnu_object_only" and SHT_GNU_OBJECT_ONLY type on ELF: https://gitlab.com/x86-psABIs/Linux-ABI #define SHT_GNU_OBJECT_ONLY 0x6ffffff8 /* Object only */ * Contain non-IR object file. * Input is discarded after link. * Linker action: o Classify each input object file: * If there is a ".gnu_object_only" section, it is a mixed object file. * If there is a IR section, it is an IR object file. * Otherwise, it is a non-IR object file. o Relocatable non-IR link: * Prepare for an object-only output. * Prepare for a regular output. * For each mixed object file: * Add IR and non-IR sections to the regular output. * For object-only section: * Extract object only file. * Add it to the object-only output. * Discard object-only section. * For each IR object file: * Add IR and non-IR sections to the regular output. * For each non-IR object file: * Add non-IR sections to the regular output. * Add non-IR sections to the object-only output. * Final output: * If there are IR objects, non-IR objects and the object-only output isn't empty: * Put the object-only output into the object-only section. * Add the object-only section to the regular output. * Remove the object-only output. o Normal link and relocatable IR link: * Prepare for output. * IR link: * For each mixed object file: * Compile and add IR sections to the output. * Discard non-IR sections. * Object-only section: * Extract object only file. * Add it to the output. * Discard object-only section. * For each IR object file: * Compile and add IR sections to the output. * Discard non-IR sections. * For each non-IR object file: * Add non-IR sections to the output. * Non-IR link: * For each mixed object file: * Add non-IR sections to the output. * Discard IR sections and object-only section. * For each IR object file: * Add non-IR sections to the output. * Discard IR sections. * For each non-IR object file: * Add non-IR sections to the output. This is useful for Linux kernel build with LTO. bfd/ PR ld/12291 PR ld/12430 PR ld/13298 * bfd.c (bfd_lto_object_type): Add lto_mixed_object. (bfd): Add object_only_section. (bfd_group_signature): New. * elf.c (special_sections_g): Add .gnu_object_only. * format.c: Include "plugin-api.h" and "plugin.h" if BFD_SUPPORTS_PLUGINS is defined. (bfd_set_lto_type): Set type to lto_mixed_object for GNU_OBJECT_ONLY_SECTION_NAME section. (bfd_check_format_matches): Don't check the plugin target twice if the plugin target is explicitly specified. * opncls.c (bfd_extract_object_only_section): New. * plugin.c (bfd_plugin_fake_text_section): New. (bfd_plugin_fake_data_section): Likewise. (bfd_plugin_fake_bss_section): Likewise. (bfd_plugin_fake_common_section): Likewise. (bfd_plugin_get_symbols_in_object_only): Likewise. * plugin.c (add_symbols): Call bfd_plugin_get_symbols_in_object_only and count plugin_data->object_only_nsyms. (bfd_plugin_get_symtab_upper_bound): Count plugin_data->object_only_nsyms. bfd_plugin_get_symbols_in_object_only and add symbols from object only section. (bfd_plugin_canonicalize_symtab): Remove fake_section, fake_data_section, fake_bss_section and fake_common_section. Set udata.p to NULL. Use bfd_plugin_fake_text_section, bfd_plugin_fake_data_section, bfd_plugin_fake_bss_section and bfd_plugin_fake_common_section. Set udata.p to NULL. * plugin.h (plugin_data_struct): Add object_only_nsyms and object_only_syms. * section.c (GNU_OBJECT_ONLY_SECTION_NAME): New. * bfd-in2.h: Regenerated. binutils/ PR ld/12291 PR ld/12430 PR ld/13298 * objcopy.c (group_signature): Removed. (is_strip_section): Replace group_signature with bfd_group_signature. (setup_section): Likewise. * readelf.c (get_os_specific_section_type_name): Handle SHT_GNU_OBJECT_ONLY. gas/ PR ld/12291 PR ld/12430 PR ld/13298 * testsuite/gas/elf/section9.s: Add the .gnu_object_only test. * testsuite/gas/elf/section9.d: Updated. include/ PR ld/12291 PR ld/12430 PR ld/13298 * elf/common.h (SHT_GNU_OBJECT_ONLY): New. ld/ PR ld/12291 PR ld/12430 PR ld/13298 * ld.h (ld_config_type): Add emit_gnu_object_only and emitting_gnu_object_only. * ldelf.c (orphan_init_done): Make it file scope. (ldelf_place_orphan): Rename hold to orig_hold. Initialize hold from orig_hold at run-time. (ldelf_finish): New. * ldelf.h (ldelf_finish): New. * ldexp.c (ldexp_init): Take a bfd_boolean argument to supprt object-only output. (ldexp_finish): Likewise. * ldexp.h (ldexp_init): Take a bfd_boolean argument. (ldexp_finish): Likewise. * ldfile.c (ldfile_try_open_bfd): Call cmdline_check_object_only_section. * ldlang.c: Include "ldwrite.h" and elf-bfd.h. * ldlang.c (cmdline_object_only_file_list): New. (cmdline_object_only_archive_list): Likewise. (cmdline_temp_object_only_list): Likewise. (cmdline_lists_init): Likewise. (cmdline_list_new): Likewise. (cmdline_list_append): Likewise. (print_cmdline_list): Likewise. (cmdline_on_object_only_archive_list_p): Likewise. (cmdline_object_only_list_append): Likewise. (cmdline_get_object_only_input_files): Likewise. (cmdline_arg): Likewise. (setup_section): Likewise. (copy_section): Likewise. (cmdline_fopen_temp): Likewise. (cmdline_add_object_only_section): Likewise. (cmdline_emit_object_only_section): Likewise. (cmdline_extract_object_only_section): Likewise. (cmdline_check_object_only_section): Likewise. (cmdline_remove_object_only_files): Likewise. (lang_init): Take a bfd_boolean argument to supprt object-only output. Call cmdline_lists_init. (load_symbols): Call cmdline_on_object_only_archive_list_p to check if an archive member should be loaded. (lang_process): Handle object-only link. * ldlang.h (lang_init): Take a bfd_boolean argument. (cmdline_enum_type): New. (cmdline_header_type): Likewise. (cmdline_file_type): Likewise. (cmdline_bfd_type): Likewise. (cmdline_union_type): Likewise. (cmdline_list_type): Likewise. (cmdline_emit_object_only_section): Likewise. (cmdline_check_object_only_section): Likewise. (cmdline_remove_object_only_files): Likewise. * ldmain.c (main): Call xatexit with cmdline_remove_object_only_files. Pass FALSE to lang_init, ldexp_init and ldexp_finish. Use ld_parse_linker_script. Set link_info.output_bfd to NULL after close. Call cmdline_emit_object_only_section if needed. (add_archive_element): Call cmdline_check_object_only_section. (ld_parse_linker_script): New. * ldmain.h (ld_parse_linker_script): New. * plugin.c (plugin_maybe_claim): Call cmdline_check_object_only_section on claimed IR files. * scripttempl/elf.sc: Also discard .gnu_object_only sections. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/pe.sc: Likewise. * scripttempl/pep.sc: Likewise. * emultempl/aarch64elf.em (gld${EMULATION_NAME}_finish): Replace finish_default with ldelf_finish. * emultempl/alphaelf.em (alpha_finish): Likewise. * emultempl/avrelf.em (avr_finish): Likewise. * emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ppc32elf.em (ppc_finish): Likewise. * emultempl/ppc64elf.em (gld${EMULATION_NAME}_finish): Likewise. * emultempl/spuelf.em (gld${EMULATION_NAME}_finish): Likewise. * testsuite/ld-plugin/lto-10.out: New file. * testsuite/ld-plugin/lto-10a.c: Likewise. * testsuite/ld-plugin/lto-10b.c: Likewise. * testsuite/ld-plugin/lto-10r.d: Likewise. * testsuite/ld-plugin/lto-4.out: Likewise. * testsuite/ld-plugin/lto-4a.c: Likewise. * testsuite/ld-plugin/lto-4b.c: Likewise. * testsuite/ld-plugin/lto-4c.c: Likewise. * testsuite/ld-plugin/lto-4r-a.d: Likewise. * testsuite/ld-plugin/lto-4r-b.d: Likewise. * testsuite/ld-plugin/lto-4r-c.d: Likewise. * testsuite/ld-plugin/lto-4r-d.d: Likewise. * testsuite/ld-plugin/lto.exp (lto_link_tests): Prepare for "LTO 4[acd]", "lto-4r-[abcd]" and "LTO 10" tests. (lto_run_tests): Add "LTO 4[acd]" and "LTO 10" tests. Build liblto-4.a. Run "lto-4r-[abcd]" tests. Run lto-10r and create tmpdir/lto-10.o. Add test for nm on mixed LTO/non-LTO object. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
2025-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2024-12-02aarch64: GCS feature check in GNU note properties for input objectsSrinath Parvathaneni1-0/+1
This patch adds support for Guarded Control Stack in AArch64 linker. This patch implements the following: 1) Defines GNU_PROPERTY_AARCH64_FEATURE_1_GCS bit for GCS in GNU_PROPERTY_AARCH64_FEATURE_1_AND macro. 2) Adds readelf support to read and print the GCS feature in GNU properties in AArch64. Displaying notes found in: .note.gnu.property [ ]+Owner[ ]+Data size[ ]+Description GNU 0x00000010 NT_GNU_PROPERTY_TYPE_0 Properties: AArch64 feature: GCS 3) Adds support for the "-z gcs" linker option and document all the values allowed with this option (-z gcs[=always|never|implicit]) where "-z gcs" is equivalent to "-z gcs=always". When '-z gcs' option is omitted from the command line, it defaults to "implicit" and relies on the GCS feature marking in GNU properties. 4) Adds support for the "-z gcs-report" linker option and document all the values allowed with this option (-z gcs-report[=none|warning|error]) where "-z gcs-report" is equivalent to "-z gcs-report=warning". When this option is omitted from the command line, it defaults to "warning". The ABI changes adding GNU_PROPERTY_AARCH64_FEATURE_1_GCS to the GNU property GNU_PROPERTY_AARCH64_FEATURE_1_AND is merged into main and can be found in [1]. [1] https://github.com/ARM-software/abi-aa/blob/main/sysvabi64/sysvabi64.rst Co-authored-by: Matthieu Longo <matthieu.longo@arm.com> Co-authored-by: Yury Khrustalev <yury.khrustalev@arm.com>
2024-06-25gdb: LoongArch: Add support for hardware breakpointHui Li1-0/+2
LoongArch defines hardware watchpoint functions for fetch operations. After the software configures the watchpoints for fetch, the processor hardware will monitor the access addresses of the fetch operations and trigger a watchpoint exception when the watchpoint setting conditions are met. Hardware watchpoints for fetch operations is used to implement hardware breakpoint function on LoongArch. Refer to the following document for hardware breakpoint. https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#control-and-status-registers-related-to-watchpoints A simple test is as follows: lihui@bogon:~$ cat test.c #include <stdio.h> int a = 0; int main() { printf("start test\n"); a = 1; printf("a = %d\n", a); printf("end test\n"); return 0; } lihui@bogon:~$ gcc -g test.c -o test without this patch: lihui@bogon:~$ gdb test ... (gdb) start ... Temporary breakpoint 1, main () at test.c:5 5 printf("start test\n"); (gdb) hbreak 8 No hardware breakpoint support in the target. with this patch: lihui@bogon:~$ gdb test ... (gdb) start ... Temporary breakpoint 1, main () at test.c:5 5 printf("start test\n"); (gdb) hbreak 8 Hardware assisted breakpoint 2 at 0x1200006ec: file test.c, line 8. (gdb) c Continuing. start test a = 1 Breakpoint 2, main () at test.c:8 8 printf("end test\n"); (gdb) c Continuing. end test [Inferior 1 (process 25378) exited normally] Signed-off-by: Hui Li <lihui@loongson.cn> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
2024-06-25gdb: LoongArch: Add support for hardware watchpointHui Li1-0/+2
LoongArch defines hardware watchpoint functions for load/store operations. After the software configures the watchpoints for load/store, the processor hardware will monitor the access addresses of the load/store operations and trigger watchpoint exception when the watchpoint setting conditions are met. After this patch, watch/rwatch/awatch command are supported. Refer to the following document for hardware watchpoint. https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#control-and-status-registers-related-to-watchpoints A simple test is as follows: lihui@bogon:~$ cat test.c #include <stdio.h> int a = 0; int main() { printf("start test\n"); a = 1; printf("a = %d\n", a); printf("end test\n"); return 0; } lihui@bogon:~$ gcc -g test.c -o test without this patch: lihui@bogon:~$ gdb test ... (gdb) start ... Temporary breakpoint 1, main () at test.c:5 5 printf("start test\n"); (gdb) awatch a Target does not support this type of hardware watchpoint. ... with this patch: lihui@bogon:~$ gdb test ... (gdb) start ... Temporary breakpoint 1, main () at test.c:5 5 printf("start test\n"); (gdb) awatch a Hardware access (read/write) watchpoint 2: a (gdb) c Continuing. start test Hardware access (read/write) watchpoint 2: a Old value = 0 New value = 1 main () at test.c:7 7 printf("a = %d\n", a); (gdb) c Continuing. Hardware access (read/write) watchpoint 2: a Value = 1 0x00000001200006e0 in main () at test.c:7 7 printf("a = %d\n", a); (gdb) c Continuing. a = 1 end test [Inferior 1 (process 22250) exited normally] Signed-off-by: Hui Li <lihui@loongson.cn> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
2024-05-28Add new ELF section and segment types to readelf.Nick Clifton1-29/+60
2024-05-20readelf: add pretty printing for FDO Dlopen Metadata noteLuca Boccassi1-0/+3
2024-02-12Add support to readelf for the PT_OPENBSD_SYSCALLS segment type.Frederic Cambus1-0/+1
binutils * readelf.c (get_segment_type): Handle PT_OPENBSD_SYSCALLS segment type. include * elf/common.h (PT_OPENBSD_SYSCALLS): Define.
2024-01-04Update year range in copyright notice of binutils filesAlan Modra1-1/+1
Adds two new external authors to etc/update-copyright.py to cover bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then updates copyright messages as follows: 1) Update cgen/utils.scm emitted copyrights. 2) Run "etc/update-copyright.py --this-year" with an extra external author I haven't committed, 'Kalray SA.', to cover gas testsuite files (which should have their copyright message removed). 3) Build with --enable-maintainer-mode --enable-cgen-maint=yes. 4) Check out */po/*.pot which we don't update frequently.
2023-12-28x86: Add NT_X86_SHSTK noteSchimpe, Christina1-0/+3
Define NT_X86_SHSTK which is the note for x86 Shadow Stack (SHSTK) to support Intel SHSTK in Linux kernel. For now only userspace shadow stack and kernel IBT are supported by the linux kernel. This note should be used instead of NT_X86_CET introduced in the commit "x86: Add NT_X86_CET note", as it is outdated and only used by old binutils versions.
2023-10-06gdb: support rseq auxvsIlya Leoshkevich1-0/+2
Linux kernel commit commit 317c8194e6ae ("rseq: Introduce feature size and alignment ELF auxiliary vector entries") introduced two new auxvs: AT_RSEQ_FEATURE_SIZE and AT_RSEQ_ALIGN. Support them in GDB. This fixes auxv.exp on kernels >= v6.3. Change-Id: I8966c4d5c73eb7b45de6d410a9b28a6628edad2e Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30540 Approved-By: Tom Tromey <tom@tromey.com>
2023-09-28Add support to readelf for the PT_OPENBSD_NOBTCFI segment type.Frederic Cambus1-0/+1
2023-08-21aarch64/sme2: Teach binutils/BFD about the NT_ARM_ZT register setLuis Machado1-0/+2
The Scalable Matrix Extension v2 (SME2) defines a new register, ZT0, that the Linux Kernel handles through a new NT_ARM_ZT register set. Teach binutils/BFD about it so that gdb can make use of it for reading and writing core files. This also enables readelf/objdump to show the correct identification for the NT_ARM_ZT register set. Validated under Fast Models.
2023-05-22Re: readelf: Support SHT_RELR/DT_RELR for -rAlan Modra1-1/+4
Revert value of DT_ENCODING to as it was before commit a7fd118627, and adjust readelf. include/ * elf/common.h (DT_ENCODING): Set back to 32. binutils/ * readelf.c (struct filedata): Don't size dynamic_info array using DT_ENCODING.
2023-03-23Add support to readelf for the PT_OPENBSD_MUTABLE segment type.Frederic Cambus1-0/+1
binutils * readelf.c (get_segment_type): Handle PT_OPENBSD_MUTABLE segment type. include * elf/common.h (PT_OPENBSD_MUTABLE): Define.
2023-03-16readelf: add support for QNT_STACK note subsectionsClément Chigot1-0/+13
QNX provides some .note subsections. QNT_STACK is the one controling the stack allocation. bfd/ChangeLog: * elf.c (BFD_QNT_CORE_INFO): Delete. (BFD_QNT_CORE_STATUS): Likewise. (BFD_QNT_CORE_GREG): Likewise. (BFD_QNT_CORE_FPREG): Likewise. (elfcore_grok_nto_note): Replace BFD_QNT_* by QNT_*. binutils/ChangeLog: * readelf.c (get_qnx_elfcore_note_type): New function. (print_qnx_note): New function. (process_note): Add support for QNX support. include/ChangeLog: * elf/common.h (QNT_DEBUG_FULLPATH): New define. (QNT_DEBUG_RELOC): New define. (QNT_STACK): New define. (QNT_GENERATOR): New define. (QNT_DEFAULT_LIB): New define. (QNT_CORE_SYSINFO): New define. (QNT_CORE_INFO): New define. (QNT_CORE_STATUS): New define. (QNT_CORE_GREG): New define. (QNT_CORE_FPREG): New define. (QNT_LINK_MAP): New define.
2023-02-02bfd: use "stack trace" instead of "unwind" for SFrameIndu Bhagat1-1/+1
SFrame format is meant for generating stack traces only. bfd/ * elf-bfd.h: Replace the use of "unwind" with "stack trace". * elf-sframe.c: Likewise. * elf64-x86-64.c: Likewise. * elfxx-x86.c: Likewise. include/ * elf/common.h: Likewise.
2023-01-03Add new NT_ARM_ZA and NT_ARM_SSVE register set constants.Luis Machado1-0/+4
2023-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
The newer update-copyright.py fixes file encoding too, removing cr/lf on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
2022-11-15bfd: linker: merge .sframe sectionsIndu Bhagat1-0/+1
The linker merges all the input .sframe sections. When merging, the linker verifies that all the input .sframe sections have the same abi/arch. The linker uses libsframe library to perform key actions on the .sframe sections - decode, read, and create output data. This implies buildsystem changes to make and install libsframe before libbfd. The linker places the output .sframe section in a new segment of its own: PT_GNU_SFRAME. A new segment is not added, however, if the generated .sframe section is empty. When a section is discarded from the final link, the corresponding entries in the .sframe section for those functions are also deleted. The linker sorts the SFrame FDEs on start address by default and sets the SFRAME_F_FDE_SORTED flag in the .sframe section. This patch also adds support for generation of SFrame unwind information for the .plt* sections on x86_64. SFrame unwind info is generated for IBT enabled PLT, lazy/non-lazy PLT. The existing linker option --no-ld-generated-unwind-info has been adapted to include the control of whether .sframe unwind information will be generated for the linker generated sections like PLT. Changes to the linker script have been made as necessary. ChangeLog: * Makefile.def: Add install dependency on libsframe for libbfd. * Makefile.in: Regenerated. * bfd/Makefile.am: Add elf-sframe.c * bfd/Makefile.in: Regenerated. * bfd/bfd-in2.h (SEC_INFO_TYPE_SFRAME): Regenerated. * bfd/configure: Regenerate. * bfd/configure.ac: Add elf-sframe.lo. * bfd/elf-bfd.h (struct sframe_func_bfdinfo): New struct. (struct sframe_dec_info): Likewise. (struct sframe_enc_info): Likewise. (struct elf_link_hash_table): New member for encoded .sframe object. (struct output_elf_obj_tdata): New member. (elf_sframe): New access macro. (_bfd_elf_set_section_sframe): New declaration. * bfd/elf.c (get_segment_type): Handle new segment PT_GNU_SFRAME. (bfd_section_from_phdr): Likewise. (get_program_header_size): Likewise. (_bfd_elf_map_sections_to_segments): Likewise. * bfd/elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Add contents to the .sframe sections or .plt* entries. * bfd/elflink.c (elf_section_ignore_discarded_relocs): Handle SEC_INFO_TYPE_SFRAME. (_bfd_elf_default_action_discarded): Handle .sframe section. (elf_link_input_bfd): Merge .sframe section. (bfd_elf_final_link): Write the output .sframe section. (bfd_elf_discard_info): Handle discarding .sframe section. * bfd/elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Create .sframe section for .plt and .plt.sec. (_bfd_x86_elf_finish_dynamic_sections): Handle .sframe from .plt* sections. * bfd/elfxx-x86.h (PLT_SFRAME_FDE_START_OFFSET): New definition. (SFRAME_PLT0_MAX_NUM_FRES): Likewise. (SFRAME_PLTN_MAX_NUM_FRES): Likewise. (struct elf_x86_sframe_plt): New structure. (struct elf_x86_link_hash_table): New member. (struct elf_x86_init_table): New members for .sframe creation. * bfd/section.c: Add new definition SEC_INFO_TYPE_SFRAME. * binutils/readelf.c (get_segment_type): Handle new segment PT_GNU_SFRAME. * ld/ld.texi: Update documentation for --no-ld-generated-unwind-info. * ld/scripttempl/elf.sc: Support .sframe sections. * ld/Makefile.am (TESTSFRAMELIB): Use it. (check-DEJAGNU): Likewise. * ld/Makefile.in: Regenerated. * ld/configure.ac (TESTSFRAMELIB): Set to the .so or .a like TESTBFDLIB. * ld/configure: Regenerated. * bfd/elf-sframe.c: New file. include/ChangeLog: * elf/common.h (PT_GNU_SFRAME): New definition. * elf/internal.h (struct elf_segment_map): Handle new segment type PT_GNU_SFRAME. ld/testsuite/ChangeLog: * ld/testsuite/ld-bootstrap/bootstrap.exp: Add SFRAMELIB. * ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test sframe-simple-1. * ld/testsuite/ld-aarch64/sframe-bar.s: New file. * ld/testsuite/ld-aarch64/sframe-foo.s: Likewise. * ld/testsuite/ld-aarch64/sframe-simple-1.d: Likewise. * ld/testsuite/ld-sframe/sframe-empty.d: New test. * ld/testsuite/ld-sframe/sframe-empty.s: New file. * ld/testsuite/ld-sframe/sframe.exp: New testsuite. * ld/testsuite/ld-x86-64/sframe-bar.s: New file. * ld/testsuite/ld-x86-64/sframe-foo.s: Likewise. * ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise. * ld/testsuite/ld-x86-64/sframe-plt-1.d: Likewise. * ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise. * ld/testsuite/ld-x86-64/x86-64.exp: Add new tests - sframe-simple-1, sframe-plt-1. * ld/testsuite/lib/ld-lib.exp: Add new proc to check if assembler supports SFrame section. * ld/testsuite/ld-sframe/discard.d: New file. * ld/testsuite/ld-sframe/discard.ld: Likewise. * ld/testsuite/ld-sframe/discard.s: Likewise.
2022-09-23Support AT_USRSTACKBASE and AT_USRSTACKLIM.John Baldwin1-0/+2
FreeBSD's kernel has recently added two new ELF auxiliary vector entries to describe the location of the user stack for the initial thread in a process. This change displays the proper name and description of these entries in 'info auxv'.
2022-08-02Add ELFCOMPRESS_ZSTD.Cary Coutant1-0/+2
include/elf/ * common.h: Add ELFCOMPRESS_ZSTD.
2022-04-07Recognize the NT_ARM_SYSTEM_CALL register setLuis Machado1-0/+2
Update binutils to recognize the NT_ARM_SYSTEM_CALL set that is dumped by Linux to core files.
2022-04-01Recognize FreeBSD core dump note for x86 segment base registers.John Baldwin1-0/+1
This core dump note contains the value of the base address of the %fs and %gs segments for both i386 and amd64 core dumps. It is primarily useful in resolving the address of TLS variables in core dumps. binutils/ChangeLog: * readelf.c (get_freebsd_elfcore_note_type): Handle NT_FREEBSD_X86_SEGBASES. include/ChangeLog: * elf/common.h (NT_FREEBSD_X86_SEGBASES): Define.
2022-03-16binutils/readelf: handle AMDGPU OS ABIsSimon Marchi1-0/+2
When the machine is EM_AMDGPU, handle the various OS ABIs described here: https://llvm.org/docs/AMDGPUUsage.html#header For a binary with the HSA OS ABI, the change looks like: - OS/ABI: <unknown: 40> + OS/ABI: AMD HSA binutils/ChangeLog: * readelf.c (get_osabi_name): Handle EM_AMDGPU OS ABIs. include/ChangeLog: * elf/common.h (ELFOSABI_AMDGPU_PAL, ELFOSABI_AMDGPU_MESA3D): New. Change-Id: I383590c390f7dc2fe0f902f50038735626d71863
2022-03-16bfd: add AMDGCN architectureSimon Marchi1-0/+1
Add support for the AMDGCN architecture to BFD. This is the bare minimum to get $ ./configure --target=amdgcn-hsa-amdhsa --disable-gas $ make all-binutils working later in this series. The specific AMDGCN models added here are a bit arbitrary, based on what we intend to initially support in GDB. This list will need to be updated in the future anyway. The complete up-to-date list of existing AMDGPU models can be found here: https://llvm.org/docs/AMDGPUUsage.html#processors The ELF format for this architecture is documented here: https://llvm.org/docs/AMDGPUUsage.html#elf-code-object The flags for the "HSA" OS ABI are properly versioned and documented on that page. But the NONE, PAL and MESA3D OS ABIs are not well documented nor versioned. Taking a peek at the LLVM source code, we see that they encode their flags the same way as HSA v3. For example, for PAL: https://github.com/llvm/llvm-project/blob/c8b614cd74a92d85936aed5ac7c642af75ffdc29/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp#L601 So at least, we know that all AMDGPU objects (of which AMDGCN objects are a subset of) at the time of writing encode the specific GPU model in the EF_AMDGPU_MACH field of e_flags. bfd/ChangeLog: * Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES): Add cpu-amdgcn.c. (BFD64_BACKENDS): Add elf64-amdgcn.lo. (BFD64_BACKENDS_CFILES): Add elf64-amdgcn.c. * Makefile.in: Re-generate. * cpu-amdgcn.c: New. * elf64-amdgcn.c: New. * archures.c (bfd_architecture): Add bfd_arch_amdgcn and related mach defines. (bfd_amdgcn_arch): New. (bfd_archures_list): Add bfd_amdgcn_arch. * bfd-in2.h: Re-generate. * config.bfd: Handle amdgcn* target. * configure.ac: Handle amdgcn_elf64_le_vec. * configure: Re-generate. * elf-bfd.h (elf_target_id): Add AMDGCN_ELF_DATA. * targets.c (amdgcn_elf64_le_vec): New. (_bfd_target_vector): Add amdgcn_elf64_le_vec. include/ChangeLog: * elf/amdgpu.h: New. * elf/common.h (ELFOSABI_AMDGPU_HSA): Add. Change-Id: I969f7b14960797e88891c308749a6e341eece5b2
2022-02-03Rename EM_56800V4 to EM_56800EF.Cary Coutant1-1/+1
include/elf: * common.h: Rename EM_56800V4 to EM_56800EF.
2022-02-03Add new e_machine values.Cary Coutant1-0/+3
include/elf: * common.h: Add EM_U16_U8CORE, EM_TACHYUM, EM_56800V4.
2022-01-25Fix a probem building the binutils on SPARC/amd64Klaus Ziegler1-0/+2
PR 28816 * elf/common.h (AT_SUN_HWCAP): Make definition conditional.
2022-01-02Update year range in copyright notice of binutils filesAlan Modra1-1/+1
The result of running etc/update-copyright.py --this-year, fixing all the files whose mode is changed by the script, plus a build with --enable-maintainer-mode --enable-cgen-maint=yes, then checking out */po/*.pot which we don't update frequently. The copy of cgen was with commit d1dd5fcc38ead reverted as that commit breaks building of bfp opcodes files.
2021-12-07Support AT_FXRNG and AT_KPRELOAD on FreeBSD.John Baldwin1-0/+2
FreeBSD's kernel has recently added two new ELF auxiliary vector entries. AT_FXRNG points to a root seed version for the kernel's PRNG. Userland can use this to reseed a userland PRNG after the kernel's PRNG has reseeded. AT_KPRELOAD is the base address of a kernel-provided vDSO. This change displays the proper name and description of these entries in 'info auxv'. include/ChangeLog: * elf/common.h (AT_FREEBSD_FXRNG, AT_FREEBSD_KPRELOAD): Define.
2021-12-01readelf: recognize FDO Packaging Metadata ELF noteLuca Boccassi1-0/+3
As defined on: https://systemd.io/COREDUMP_PACKAGE_METADATA/ this note will be used starting from Fedora 36. Allow readelf --notes to pretty print it: Displaying notes found in: .note.package Owner Data size Description FDO 0x00000039 FDO_PACKAGING_METADATA Packaging Metadata: {"type":"deb","name":"fsverity-utils","version":"1.3-1"} Signed-off-by: Luca Boccassi <luca.boccassi@microsoft.com>
2021-11-16readelf: Support SHT_RELR/DT_RELR for -rFangrui Song1-1/+1
The -r output for SHT_RELR looks like: Relocation section '.relr.dyn' at offset 0x530 contains 4 entries: 7 offsets 00000000000028c0 00000000000028c8 0000000000003ad0 0000000000003ad8 0000000000003ae0 0000000000003ae8 0000000000003af0 For --use-dynamic, the header looks like 'RELR' relocation section at offset 0x530 contains 32 bytes: include/ * elf/common.h (DT_ENCODING): Bump to 38. * elf/external.h (Elf32_External_Relr): New. (Elf64_External_Relr): New. binutils/ * readelf.c (enum relocation_type): New. (slurp_relr_relocs): New. (dump_relocations): Change is_rela to rel_type. Dump RELR. (dynamic_relocations): Add DT_RELR. (process_relocs): Check SHT_RELR and DT_RELR. (process_dynamic_section): Store into dynamic_info for DT_RELR/DT_RELRENT/DT_RELRSZ.
2021-11-06readelf: Support RELR in -S and -d and outputFangrui Song1-0/+4
readelf -r dumping support is not added in this patch. include/ * elf/common.h: Add SHT_RELR, DT_RELR{,SZ,ENT} bfd/ * elf.c (_bfd_elf_print_private_bfd_data): Add DT_RELR{,SZ,ENT}. binutils/ * readelf.c (get_dynamic_type): Add DT_RELR{,SZ,ENT}. (get_section_type_name): Add SHT_RELR.
2021-10-24LoongArch bfd supportliuzhensong1-1/+11
2021-10-22 Chenghua Xu <xuchenghua@loongson.cn> Zhensong Liu <liuzhensong@loongson.cn> Weinan Liu <liuweinan@loongson.cn> bfd/ * Makefile.am: Add LoongArch. * archures.c: Likewise. * config.bfd: Likewise. * configure.ac: Likewise. * cpu-loongarch.c: New. * elf-bfd.h: Add LoongArch. * elf.c: Add LoongArch elfcore_grok_xxx. * elfnn-loongarch.c: New. * elfxx-loongarch.c: New. * elfxx-loongarch.h: New. * reloc.c: Add LoongArch BFD RELOC ENUM. * targets.c: Add LoongArch target. * Makefile.in: Regenerate. * bfd-in2.h: Regenerate. * configure: Regenerate. * libbfd.h: Regenerate. * po/BLD-POTFILES.in: Regenerate. * po/SRC-POTFILES.in: Regenerate. include/ * elf/common.h: Add NT_LARCH_{CPUCFG,CSR,LSX,LASX}. * elf/loongarch.h: New.
2021-09-30Add Solaris specific ELF note processingLibor Bukata1-0/+23
Add elfcore_grok_solaris_note function that enables to obtain process status, register values, and program info from Solaris's core files. bfd/ * elf.c (elfcore_grok_solaris_note): Solaris specific ELF note parser. Better GDB's coredump analysis on Solaris... (elfcore_grok_solaris_note_impl): New function. (elfcore_grok_solaris_prstatus): New function. (elfcore_grok_solaris_info): New function. (elfcore_grok_solaris_lwpstatus): New function. (elf_parse_notes): Added "CORE" groker element. include/ * elf/common.h: Add note segment constants for core files on Solaris systems.
2021-09-07Revert: [AArch64] MTE corefile supportLuis Machado1-6/+0
bfd * elf.c (elfcore_make_memtag_note_section): New function. (elfcore_grok_note): Handle NT_MEMTAG note types. binutils* readelf.c (get_note_type): Handle NT_MEMTAG note types. include * elf/common.h (NT_MEMTAG): New constant. (NT_MEMTAG_TYPE_AARCH_MTE): New constant.
2021-08-11Add 3 new PAC-related ARM note typesLuis Machado1-0/+9
The following patch synchronizes includes/objdump/readelf with the Linux Kernel in terms of ARM regset notes. We're currently missing 3 of them: NT_ARM_PACA_KEYS NT_ARM_PACG_KEYS NT_ARM_PAC_ENABLED_KEYS We don't need GDB to bother with this at the moment, so this doesn't update bfd/elf.c. If needed, we can do it in the future. binutils/ * readelf.c (get_note_type): Handle new ARM PAC notes. include/elf/ * common.h (NT_ARM_PACA_KEYS, NT_ARM_PACG_KEYS) (NT_ARM_PAC_ENABLED_KEYS): New constants.
2021-07-08elf: Add GNU_PROPERTY_1_NEEDEDH.J. Lu1-0/+7
Add GNU_PROPERTY_1_NEEDED: #define GNU_PROPERTY_1_NEEDED GNU_PROPERTY_UINT32_OR_LO to indicate the needed properties by the object file. Add GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS: #define GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS (1U << 0) to indicate that the object file requires canonical function pointers and cannot be used with copy relocation. binutils/ * readelf.c (decode_1_needed): New. (print_gnu_property_note): Handle GNU_PROPERTY_1_NEEDED. include/ * elf/common.h (GNU_PROPERTY_1_NEEDED): New. (GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS): Likewise. ld/ * testsuite/ld-elf/property-1_needed-1a.d: New file. * testsuite/ld-elf/property-1_needed-1.s: Likewise.
2021-06-18elf: Add GNU_PROPERTY_UINT32_AND_XXX/GNU_PROPERTY_UINT32_OR_XXXH.J. Lu1-0/+10
Implement GNU_PROPERTY_UINT32_AND_XXX/GNU_PROPERTY_UINT32_OR_XXX: https://sourceware.org/pipermail/gnu-gabi/2021q1/000467.html 1. GNU_PROPERTY_UINT32_AND_LO..GNU_PROPERTY_UINT32_AND_HI #define GNU_PROPERTY_UINT32_AND_LO 0xb0000000 #define GNU_PROPERTY_UINT32_AND_HI 0xb0007fff A bit in the output pr_data field is set only if it is set in all relocatable input pr_data fields. If all bits in the the output pr_data field are zero, this property should be removed from output. If the bit is 1, all input relocatables have the feature. If the bit is 0 or the property is missing, the info is unknown. 2. GNU_PROPERTY_UINT32_OR_LO..GNU_PROPERTY_UINT32_OR_HI #define GNU_PROPERTY_UINT32_OR_LO 0xb0008000 #define GNU_PROPERTY_UINT32_OR_HI 0xb000ffff A bit in the output pr_data field is set if it is set in any relocatable input pr_data fields. If all bits in the the output pr_data field are zero, this property should be removed from output. If the bit is 1, some input relocatables have the feature. If the bit is 0 or the property is missing, the info is unknown. bfd/ * elf-properties.c (_bfd_elf_parse_gnu_properties): Handle GNU_PROPERTY_UINT32_AND_LO, GNU_PROPERTY_UINT32_AND_HI, GNU_PROPERTY_UINT32_OR_LO and GNU_PROPERTY_UINT32_OR_HI. (elf_merge_gnu_properties): Likewise. binutils/ * readelf.c (print_gnu_property_note): Handle GNU_PROPERTY_UINT32_AND_LO, GNU_PROPERTY_UINT32_AND_HI, GNU_PROPERTY_UINT32_OR_LO and GNU_PROPERTY_UINT32_OR_HI. include/ * elf/common.h (GNU_PROPERTY_UINT32_AND_LO): New. (GNU_PROPERTY_UINT32_AND_HI): Likewise. (GNU_PROPERTY_UINT32_OR_LO): Likewise. (GNU_PROPERTY_UINT32_OR_HI): Likewise. ld/ * testsuite/ld-elf/property-and-1.d: New file. * testsuite/ld-elf/property-and-1.s: Likewise. * testsuite/ld-elf/property-and-2.d: Likewise. * testsuite/ld-elf/property-and-2.s: Likewise. * testsuite/ld-elf/property-and-3.d: Likewise. * testsuite/ld-elf/property-and-3.s: Likewise. * testsuite/ld-elf/property-and-4.d: Likewise. * testsuite/ld-elf/property-and-empty.s: Likewise. * testsuite/ld-elf/property-or-1.d: Likewise. * testsuite/ld-elf/property-or-1.s: Likewise. * testsuite/ld-elf/property-or-2.d: Likewise. * testsuite/ld-elf/property-or-2.s: Likewise. * testsuite/ld-elf/property-or-3.d: Likewise. * testsuite/ld-elf/property-or-3.s: Likewise. * testsuite/ld-elf/property-or-4.d: Likewise. * testsuite/ld-elf/property-or-empty.s: Likewise.
2021-06-15Allow readelf to recognise GO buildid notes.Nick Clifton1-0/+1
binutils * readelf.c (get_note_type): Add support for NT_GO_BUILDID. include * elf/common.h (NT_GO_BUILDID): Define.
2021-05-28x86: Restore PC16 relocation overflow checkH.J. Lu1-1/+0
The x86-64 psABI has --- A program or object file using R_X86_64_8, R_X86_64_16, R_X86_64_PC16 or R_X86_64_PC8 relocations is not conformant to this ABI, these relocations are only added for documentation purposes. --- Since x86 PC16 relocations have been used for 16-bit programs in an ELF32 or ELF64 container, PC16 relocation should wrap-around in 16-bit address space. Revert commit a7664973b24a242cd9ea17deb5eaf503065fc0bd Author: Jan Beulich <jbeulich@suse.com> Date: Mon Apr 26 10:41:35 2021 +0200 x86: correct overflow checking for 16-bit PC-relative relocs and xfail the related tests. Also revert commit 50c95a739c91ae70cf8481936611aa1f5397a384 Author: H.J. Lu <hjl.tools@gmail.com> Date: Wed May 26 12:13:13 2021 -0700 x86: Propery check PC16 reloc overflow in 16-bit mode instructions while keeping PR ld/27905 tests for PC16 relocation in 16-bit programs. bfd/ PR ld/27905 * elf32-i386.c: Don't include "libiberty.h". (elf_howto_table): Revert commits a7664973b24 and 50c95a739c9. (elf_i386_rtype_to_howto): Revert commit 50c95a739c9. (elf_i386_info_to_howto_rel): Likewise. (elf_i386_tls_transition): Likewise. (elf_i386_relocate_section): Likewise. * elf64-x86-64.c (x86_64_elf_howto_table): Revert commits a7664973b24 and 50c95a739c9. (elf_x86_64_rtype_to_howto): Revert commit 50c95a739c9. * elfxx-x86.c (_bfd_x86_elf_parse_gnu_properties): Likewise. * elfxx-x86.h (elf_x86_obj_tdata): Likewise. (elf_x86_has_code16): Likewise. binutils/ PR ld/27905 * readelf.c (decode_x86_feature_2): Revert commit 50c95a739c9. gas/ PR ld/27905 * config/tc-i386.c (set_code_flag): Revert commit 50c95a739c9. (set_16bit_gcc_code_flag): Likewise. (x86_cleanup): Likewise. * testsuite/gas/i386/code16-2.d: Updated. * testsuite/gas/i386/x86-64-code16-2.d: Likewise. include/ PR ld/27905 * elf/common.h (GNU_PROPERTY_X86_FEATURE_2_CODE16): Removed. ld/ PR ld/27905 * testsuite/ld-i386/pcrel16-2.d: xfail. * testsuite/ld-x86-64/pcrel16-2.d: Likewise.
2021-05-26x86: Propery check PC16 reloc overflow in 16-bit mode instructionsH.J. Lu1-0/+1
commit a7664973b24a242cd9ea17deb5eaf503065fc0bd Author: Jan Beulich <jbeulich@suse.com> Date: Mon Apr 26 10:41:35 2021 +0200 x86: correct overflow checking for 16-bit PC-relative relocs caused linker failure when building 16-bit program in a 32-bit ELF container. Update GNU_PROPERTY_X86_FEATURE_2_USED with #define GNU_PROPERTY_X86_FEATURE_2_CODE16 (1U << 12) to indicate that 16-bit mode instructions are used in the input object: https://groups.google.com/g/x86-64-abi/c/UvvXWeHIGMA to indicate that 16-bit mode instructions are used in the object to allow linker to properly perform relocation overflow check for 16-bit PC-relative relocations in 16-bit mode instructions. 1. Update x86 assembler to always generate the GNU property note with GNU_PROPERTY_X86_FEATURE_2_CODE16 for .code16 in ELF object. 2. Update i386 and x86-64 linkers to use 16-bit PC16 relocations if input object is marked with GNU_PROPERTY_X86_FEATURE_2_CODE16. bfd/ PR ld/27905 * elf32-i386.c: Include "libiberty.h". (elf_howto_table): Add 16-bit R_386_PC16 entry. (elf_i386_rtype_to_howto): Add a BFD argument. Use 16-bit R_386_PC16 if input has 16-bit mode instructions. (elf_i386_info_to_howto_rel): Update elf_i386_rtype_to_howto call. (elf_i386_tls_transition): Likewise. (elf_i386_relocate_section): Likewise. * elf64-x86-64.c (x86_64_elf_howto_table): Add 16-bit R_X86_64_PC16 entry. (elf_x86_64_rtype_to_howto): Use 16-bit R_X86_64_PC16 if input has 16-bit mode instructions. * elfxx-x86.c (_bfd_x86_elf_parse_gnu_properties): Set elf_x86_has_code16 if relocatable input is marked with GNU_PROPERTY_X86_FEATURE_2_CODE16. * elfxx-x86.h (elf_x86_obj_tdata): Add has_code16. (elf_x86_has_code16): New. binutils/ PR ld/27905 * readelf.c (decode_x86_feature_2): Support GNU_PROPERTY_X86_FEATURE_2_CODE16. gas/ PR ld/27905 * config/tc-i386.c (set_code_flag): Update x86_feature_2_used with GNU_PROPERTY_X86_FEATURE_2_CODE16 for .code16 in ELF object. (set_16bit_gcc_code_flag): Likewise. (x86_cleanup): Always generate the GNU property note if x86_feature_2_used isn't 0. * testsuite/gas/i386/code16-2.d: New file. * testsuite/gas/i386/code16-2.s: Likewise. * testsuite/gas/i386/x86-64-code16-2.d: Likewise. * testsuite/gas/i386/i386.exp: Run code16-2 and x86-64-code16-2. include/ PR ld/27905 * elf/common.h (GNU_PROPERTY_X86_FEATURE_2_CODE16): New. ld/ PR ld/27905 * testsuite/ld-i386/code16.d: New file. * testsuite/ld-i386/code16.t: Likewise. * testsuite/ld-x86-64/code16.d: Likewise. * testsuite/ld-x86-64/code16.t: Likewise. * testsuite/ld-i386/i386.exp: Run code16. * testsuite/ld-x86-64/x86-64.exp: Likewise.
2021-05-23elf: Use official name LoongArch for EM_LOONGARCH.Chenghua Xu1-1/+1
The official name for Loongson Architecture is LoongArch, it is better to use LoongArch instead of Loongson Loongarch for EM_LOONGARCH to avoid confusion and keep consistent with the various of software in the future. The official documentation in Chinese: http://www.loongson.cn/uploadfile/cpu/LoongArch.pdf The translated version in English: https://loongson.github.io/LoongArch-Documentation/ binutils/ * readelf.c (get_machine_name): Change Loongson Loongarch to LoongArch. include/ * elf/common.h (EM_LOONGARCH): Change Loongson Loongarch to LoongArch.
2021-05-21[AArch64] MTE corefile supportLuis Machado1-0/+6
bfd * elf.c (elfcore_make_memtag_note_section): New function. (elfcore_grok_note): Handle NT_MEMTAG note types. binutils* readelf.c (get_note_type): Handle NT_MEMTAG note types. include * elf/common.h (NT_MEMTAG): New constant. (NT_MEMTAG_TYPE_AARCH_MTE): New constant.
2021-03-24AArch64: Add MTE register set support for GDB and gdbserverLuis Machado1-0/+3
AArch64 MTE support in the Linux kernel exposes a new register through ptrace. This patch adds the required code to support it. include/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * elf/common.h (NT_ARM_TAGGED_ADDR_CTRL): Define. gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * aarch64-linux-nat.c (fetch_mteregs_from_thread): New function. (store_mteregs_to_thread): New function. (aarch64_linux_nat_target::fetch_registers): Update to call fetch_mteregs_from_thread. (aarch64_linux_nat_target::store_registers): Update to call store_mteregs_to_thread. * aarch64-tdep.c (aarch64_mte_register_names): New struct. (aarch64_cannot_store_register): Handle MTE registers. (aarch64_gdbarch_init): Initialize and setup MTE registers. * aarch64-tdep.h (gdbarch_tdep) <mte_reg_base>: New field. <has_mte>: New method. * arch/aarch64-linux.h (AARCH64_LINUX_SIZEOF_MTE): Define. gdbserver/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * linux-aarch64-low.cc (aarch64_fill_mteregset): New function. (aarch64_store_mteregset): New function. (aarch64_regsets): Add MTE register set entry. (aarch64_sve_regsets): Add MTE register set entry.
2021-03-19elf: Rename EM_INTEL205 to EM_INTELGTH.J. Lu1-1/+1
Rename EM_INTEL205 to EM_INTELGT for Intel Graphics Technology. binutils/ * readelf.c (get_machine_name): Add EM_INTELGT. include/ * elf/common.h (EM_INTEL205): Renamed to ... (EM_INTELGT): This.
2021-03-12Add values for NetBSD .note.netbsd.ident notes (PaX).Frederic Cambus1-0/+9
* elf/common.h (NT_NETBSD_PAX, NT_NETBSD_PAX_MPROTECT) (NT_NETBSD_PAX_NOMPROTECT, NT_NETBSD_PAX_GUARD, NT_NETBSD_PAX_NOGUARD) (NT_NETBSD_PAX_ASLR, NT_NETBSD_PAX_NOASLR): Define.
2021-03-05bfd/binutils: add support for RISC-V CSRs in core filesAndrew Burgess1-0/+2
Adds support for including RISC-V control and status registers into core files. The value for the define NT_RISCV_CSR is set to 0x900, this corresponds to a patch I have proposed for the Linux kernel here: http://lists.infradead.org/pipermail/linux-riscv/2020-December/003910.html As I have not yet heard if the above patch will be accepted into the kernel or not I have set the note name string to "GDB", and the note type to NT_RISCV_CSR. This means that if the above patch is rejected from the kernel, and the note type number 0x900 is assigned to some other note type, we will still be able to distinguish between the GDB produced NT_RISCV_CSR, and the kernel produced notes, where the name would be set to "CORE". bfd/ChangeLog: * elf-bfd.h (elfcore_write_riscv_csr): Declare. * elf.c (elfcore_grok_riscv_csr): New function. (elfcore_grok_note): Handle NT_RISCV_CSR. (elfcore_write_riscv_csr): New function. (elfcore_write_register_note): Handle '.reg-riscv-csr'. binutils/ChangeLog: * readelf.c (get_note_type): Handle NT_RISCV_CSR. include/ChangeLog: * elf/common.h (NT_RISCV_CSR): Define.
generated by cgit v1.1 at 2025-03-14 23:56:14 +0000