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10 daysld: Move note sections after .rodata sectionH.J. Lu2-11/+11
Move note sections after .rodata section so that note sections are placed in the same PT_LOAD segment together with .rodata section, instead of a separate PT_LOAD segment. PR ld/32341 * scripttempl/misc-sections.sc: Move note sections to ... * scripttempl/elf.sc: Here, after .rodata section. * testsuite/ld-elf/pr32341.d: New file. * testsuite/ld-elf/pr32341.s: Likewise. Co-Authored-By: Nick Clifton <nickc@redhat.com> Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
2024-09-30Improve the placement of orphan note sections.Nick Clifton10-6/+54
PR 32219
2024-09-19ld: Move the .note.build-id section to near the start of the memory map.Nick Clifton1-2/+37
This helps GDB to locate the debug information associated with a core dump. Core dumps include the first page of an executable's image, and if this page include the .note.build-id section then GDB can find it and then track down a debug info file for that build-id.
2024-06-18Ensure that the text segment is aligned on disk when using --rosegment.Nick Clifton1-1/+1
2024-06-13Add --rosegment option to BFD linker to stop the '-z separate-code' from ↵Nick Clifton1-18/+100
generating two read-only segments. PR 30907
2024-04-01hppa: Implement PA 2.0 symbolic relocations for long displacementsJohn David Anglin1-1/+1
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.
2024-01-31PR31124: Addendum: Remove PROVIDE of __flmap_init_label, __flmap.Georg-Johann Lay1-3/+3
Supply these symbols as computed by the linker scripts, even when there are weak definitions. PR 31124 * scripttempl/avr.sc (__flmap, __flmap_init_label): Remove PROVIDE.
2024-01-19ld: Remove scripttempl/elf_chaos.scH.J. Lu1-339/+0
scripttempl/elf_chaos.sc is unused. Remove it. * scripttempl/elf_chaos.sc: Removed.
2024-01-19Remove hosts/mipsbsd.h and scripttempl/mipsbsd.scH.J. Lu1-42/+0
Remove hosts/mipsbsd.h and scripttempl/mipsbsd.sc which are unused after commit 3596d8ceb2cdc35b4fd702ee9daace5a2d880174 Author: Alan Modra <amodra@gmail.com> Date: Wed Apr 18 15:39:34 2018 +0930 Remove mips aout, coff, and pe support bfd/ * hosts/mipsbsd.h: Removed. ld/ * scripttempl/mipsbsd.sc: Removed.
2024-01-04Update year range in copyright notice of binutils filesAlan Modra56-107/+107
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.
2023-12-18PR31177: Let region text start at __TEXT_REGION_ORIGIN___Georg-Johann Lay1-1/+2
The start of MEMORY region text currently starts hard-coded at 0. The linker can produce more exact diagnostics when it knows the exact placements of the memory regions. For some old devices, program memory starts at 0x8000, so allow to specify program memory start at __TEXT_REGION_ORIGIN__ similar to how the data region is described. If ok, please apply to master. This one is also fine to back-port. Johann -- AVR: Use __TEXT_REGION_ORIGIN__ as start for MEMORY region text. ld/ PR 31177 * scripttempl/avr.sc (__TEXT_REGION_ORIGIN__): New symbol. (MEMORY): Use as start address for the text region.
2023-12-15Addendum to PR31124Georg-Johann Lay1-23/+37
This is a small addendum to PR31124 "rodata in flash for more AVR devices". It adds some symbols so the startup code can set a lock on the FLMAP bit field as specified by the user. New symbols are introduced because otherwise, all the computations / decisions would have to be performed at run-time. It approved, please apply to master. Johann -- ld/ PR 31124 * scripttempl/avr.sc: Adjust comments. [MAYBE_FLMAP]: Add symbols __flmap_value and __flmap_value_with_lock. Remove __flmap_lsl4.
2023-12-12Support rodata in flash for more AVR devicesGeorg-Johann Lay1-4/+115
PR 31124 * Makefile.am (ALL_EMULATION_SOURCES): Add eavrxmega2_flmap.c and eavrxmega4_flmap.c. * Makefile.in: Regenerate. * configure.tgt: Add eavrxmega2_flmap and eavrxmega4_flmap to avr's targ_extra_emuls list. * emulparams/avrxmega2.sh (MAYBE_FLMAP): Define. * emulparams/avrxmega2_flmap.sh: New file. * emulparams/avrxmega4.sh (MAYBE_FLMAP): Define. * emulparams/avrxmega4_flmap.sh: New file. * scripttempl/avr.sc: Add support for HAVE_FLMAP.
2023-09-25Revert "arc: Add new linker emulation and scripts for ARCv3 ISA."Claudiu Zissulescu1-4/+14
This reverts commit 4deb1ee57fdb711cac6f36fed75b3c8cb5112d99.
2023-09-25arc: Add new linker emulation and scripts for ARCv3 ISA.Claudiu Zissulescu1-14/+4
Add ARCv3's linker bits. Remove obsolete tests. ld/ xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com> * ld/Makefile.am: Add ARC64 targets. * ld/configure.tgt: Likewise. * ld/Makefile.in: Regenerate. * ld/emulparams/arc64elf32.sh: New file. * ld/emulparams/arc64elf64.sh: Likewise. * ld/emulparams/arc64linux32.sh: Likewise. * ld/emulparams/arc64linux64.sh: Likewise. * ld/scripttempl/elfarc.sc: Update stack and heap definitions. * ld/testsuite/ld-arc/got-weak.d: Deleted file. * ld/testsuite/ld-arc/got-weak.s: Likewise. Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
2023-08-31arc: Update elfarcv2 script templateClaudiu Zissulescu1-7/+11
Update ARC's elfarcv2 script template with: - The .ivt section (Interrupt Vector Table) is mapped at the begining of STARTUP_MEMORY when ivtbase_addr is not defined. Previously, it was pointing to 0x00. - MEMORY_FILE is a new emulation paramter and sets the name for the linker script file which holds the MEMORY commands required by arcv2elfx emulation. - Four new linker variables are introduced available when arcv2elf emulation is used: * __TEXT_REGION_ORIGIN__ Once defined it is setting the text region origin. By default it points to zero. * __TEXT_REGION_LENGTH__ Once defined it is setting the text region length. By default it is set to 2M. * __DATA_REGION_ORIGIN__ Once defined it is setting the data region origin. By default it is set to 0x80000000. * __DATA_REGION_LENGTH__ Once defined it is setting the data region length. By default it is set to 2M. ld/ChangeLog: * scripttempl/elfarcv2.sc: Update script template. Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
2023-08-02Revert "2.41 Release sources"Sam James14-42/+58
This reverts commit 675b9d612cc59446e84e2c6d89b45500cb603a8d. See https://sourceware.org/pipermail/binutils/2023-August/128761.html.
2023-08-022.41 Release sourcesbinutils-2_41-releaseNick Clifton14-58/+42
2023-07-17Support NEXT_SECTION in ALIGNOF and SIZEOFAlan Modra13-5/+13
This patch is aimed at making __bss_start properly aligned with the first of any bss-style sections following. Most of the work here involves keeping track of the last output section seen when processing the linker script. You can almost align __bss_start properly by using ${RELOCATING+. = ALIGN(${DATA_SDATA-${NO_SMALL_DATA-ALIGNOF(.${SBSS_NAME}) != 0 ? ALIGNOF(.${SBSS_NAME}) : }}${BSS_PLT+ALIGNOF(.plt) != 0 ? ALIGNOF(.plt) : }ALIGNOF(.${BSS_NAME}));} and changing every place that defines NO_SMALL_DATA to use " ", but having two .plt sections (marked SPECIAL) on some backends foils that idea. The problem is that you only want to pick up the following .plt, not the one preceeding __bss_start in the data segment if the backend decides that is the proper .plt section. Perhaps that could be fixed too, but I decided instead to extend the linker script a little. THIS_SECTION and PREV_SECTION could easily be added too. * ld.texi (ALIGNOF, SIZEOF): Update and mention NEXT_SECTION. * ldexp.c (output_section_find): New function. (fold_name <ALIGNOF, SIZEOF>): Use output_section_find. (exp_fold_tree): Add os parameter. Adjust all calls. (exp_fold_tree_no_dot, exp_get_vma, exp_get_power): Likewise. * ldexp.h (struct ldexp_control): Add last_os. (exp_fold_tree, exp_fold_tree_no_dot): Update prototypes. (exp_get_vma, exp_get_power): Likewise. * ldlang.c: Pass last output section to expression folder calls throughout file. (open_input_bfds): Add os parameter to track last os seen. (lang_size_sections_1): Rename output_section_statement param to current_os. Track last os. (lang_do_assignments_1): Track last os. * scripttempl/arclinux.sc: Align to ALIGNOF NEXT_SECTION before defining __bss_start. * scripttempl/elf.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * testsuite/ld-x86-64/pe-x86-64-5.od: Update expected __bss_start. * testsuite/ld-x86-64/pe-x86-64-5.rd: Likewise.
2023-07-12.noinit and .persistent for msp430Alan Modra1-14/+11
Similar to the previous patch, but also tidy a few more sections. * scripttempl/elf32msp430.sc (.text, .rodata, .data, .bss, .noinit), (.persistent): Align the section rather than aligning inside.
2023-07-12.noinit and .persistent alignmentAlan Modra1-4/+2
It's more elegant to make the section match up with its "_start" symbol. We could align by setting the address of the section (by using ALIGN before the colon), but this way we also set sh_addralign to at least $ALIGNMENT. * scripttempl/elf.sc (.noinit, .persistent): Align the output section rather than using ". = ALIGN();" at the beginning. Set address to zero when not a final link.
2023-07-12Re: Align linkerscript symbols according to ABIAlan Modra1-1/+2
Align dot before symbols defined outside of output sections. Before _end is already aligned. * scripttempl/elf.sc (def_symbol): Tidy excess space. (_edata): Align before emitting symbol when SYMBOL_ABI_ALIGNMENT.
2023-07-05Align linkerscript symbols according to ABIAndreas Krebbel1-19/+31
Apply ABI specific alignment to symbols generated in the default linker script.
2023-05-04ld: pru: Place exception-handling sections correctlyDimitar Dimitrov1-8/+26
* scripttempl/pru.sc (OUTPUT_SECTION_ALIGN): New helper variable to place at end of DMEM output sections. (.data): Use the helper variable. (.eh_frame): New output section. (.gnu_extab): Ditto. (.gcc_except_table): Ditto. (.resource_table): Use the helper variable.
2023-03-17Another source_shAlan Modra1-1/+1
* scripttempl/z80.sc: Use source_sh to source elf.sc.
2023-03-16Re: Add --enable-linker-verssionAlan Modra37-86/+70
Output sections without any input sections to initialise their flags have their flags initialised by data statements to LOAD, ALLOC, HAS_CONTENTS by default. This is wrong for .comment. Fix that by making the script initialise the section type to INFO, one of the noalloc section types. That also allows the address of .comment to be set to zero, as is usual for non-alloc sections. Also, use source_sh for all of the sourced scripts to set up make dependencies. PR 30187 * scripttempl/misc-sections.sc: Set .comment address to zero and type to INFO. * scripttempl/ft32.sc: Fix breakages from last edit. * scripttempl/arclinux.sc: Use source_sh to source DWARF.sc and misc-sections.sc. * scripttempl/avr.sc: Likewise. * scripttempl/dlx.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf32cr16.sc: Likewise. * scripttempl/elf32crx.sc: Likewise. * scripttempl/elf32msp430.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfarcv2.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfd30v.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfm9s12z.sc: Likewise. * scripttempl/elfmicroblaze.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/i386beos.sc: Likewise. * scripttempl/i386go32.sc: Likewise. * scripttempl/ia64vms.sc: Likewise. * scripttempl/ip2k.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/mmo.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/pru.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/visium.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * scripttempl/z80.sc: Likewise. * testsuite/ld-scripts/ld-version-2.d: Don't skip ft32 or pru.
2023-03-15Add --enable-linker-version option to bfd linker to add an entry in the ↵Nick Clifton33-273/+80
.comment section. PR 30187 * NEWS: Mention the new feature. * ld.texi: Document the new feature. * ldgram.y: Handle LINKER_VERSION token. * ldlang.c (lang_add_version): New function. (enable_linker_version): New global variable. * ldlang.h (land_add_version): Prototype. (enable_linker_version): Export. * ldlex.h (OPTION_ENABLE_LINKER_VERSION): Define. (OPTION_DISABLE_LINKER_VERSION): Define. * ldlex.l (LINKER_VERSION): Add token. * lexsup.c (ld_options): Add --enable-linker-version and --disable-linker-version. (parse_args): Handle the new options. * scripttempl/arclinux.sc: Remove stabs and comment sections and replace with inclusion of misc-sections.sc * scripttempl/avr.sc: Likewise. * scripttempl/dlx.sc: Likewise. * scripttempl/elf.sc: Likewise. * scripttempl/elf32cr16.sc: Likewise. * scripttempl/elf32crx.sc: Likewise. * scripttempl/elf32msp430.sc: Likewise. * scripttempl/elf64bpf.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfarcv2.sc: Likewise. * scripttempl/elfd10v.sc: Likewise. * scripttempl/elfd30v.sc: Likewise. * scripttempl/elfm68hc11.sc: Likewise. * scripttempl/elfm68hc12.sc: Likewise. * scripttempl/elfm9s12z.sc: Likewise. * scripttempl/elfmicroblaze.sc: Likewise. * scripttempl/elfxgate.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/epiphany_4x4.sc: Likewise. * scripttempl/ft32.sc: Likewise. * scripttempl/ip2k.sc: Likewise. * scripttempl/iq2000.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/pru.sc: Likewise. * scripttempl/v850.sc: Likewise. * scripttempl/v850_rh850.sc: Likewise. * scripttempl/visium.sc: Likewise. * scripttempl/xstormy16.sc: Likewise. * scripttempl/z80.sc: Likewise. * testsuite/ld-scripts/script.exp: Run new tests. * scripttempl/misc-sections.sc: New file. * testsuite/ld-scripts/ld-version-2.d: New file. * testsuite/ld-scripts/ld-version.d: New file. * testsuite/ld-scripts/ld-version.t: New file.
2023-02-04ld: pru: Add optional section alignmentsDimitar Dimitrov1-3/+11
The Texas Instruments SoCs with AARCH64 host processors have stricter alignment requirements than ones with ARM32 host processors. It's not only the requirement for resource_table to be aligned to 8. But also any loadable segment size must be a multiple of 4 [1]. The current PRU default linker script may output a segment size not aligned to 4, which would cause firmware load failure on AARCH64 hosts. Fix this by using COMMONPAGESIZE and MAXPAGESIZE to signify respectively the section memory size requirement and the resource table section's start address alignment. This would avoid penalizing the ARM32 hosts, for which the default values (1 and 1) are sufficient. For AARCH64 hosts, the alignments would be overwritten from GCC spec files using the linker command line, e.g.: -z common-page-size=4 -z max-page-size=8 [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/remoteproc/pru_rproc.c?h=v6.1#n555 ld/ChangeLog: * scripttempl/pru.sc (_data_end): Remove the alignment. (.data): Align output section size to COMMONPAGESIZE. (.resource_table): Ditto. Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
2023-02-04ld: pru: Merge the bss input sections into dataDimitar Dimitrov1-10/+14
The popular method to load PRU firmware is through the remoteproc Linux kernel driver. In order to save a few bytes from the firmware, the PRU CRT0 is spared from calling memset for the bss segment [1]. Instead the host loader is supposed to zero out the bss segment. This is important for PRU, which typically has only 8KB for instruction memory. The legacy non-mainline PRU host driver relied on the default behaviour of the kernel core remoteproc [2]. That default is to zero out the loadable memory regions not backed by file storage (i.e. the bss sections). This worked for the libgloss' CRT0. But the PRU loader merged in mainline Linux explicitly changes the default behaviour [3]. It no longer is zeroing out memory regions. Hence the bss sections are not initialized - neither by CRT0, nor by the host loader. This patch fixes the issue by aligning the GNU LD default linker script with the mainline Linux kernel expectation. Since the mainline kernel driver is submitted by the PRU manufacturer itself (Text Instruments), we can consider that as defining the ABI. This change has been tested on Beaglebone AI-64 [4]. Static counter variables in the firmware are now always starting from zero, as expected. There was only one new toolchain test failure in orphan3.d, due to reordering of the output sections. I believe this is a harmless issue. I could not rewrite the PASS criteria to ignore the output section ordering, so I have disabled that test case for PRU. [1] https://sourceware.org/git/?p=newlib-cygwin.git;a=blob;f=libgloss/pru/crt0.S;h=b3f0d53a93acc372f461007553e7688ca77753c9;hb=HEAD#l40 [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/remoteproc/remoteproc_elf_loader.c?h=v6.1#n228 [3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/remoteproc/pru_rproc.c?h=v6.1#n641 [4] https://beagleboard.org/ai-64 ld/ChangeLog: * scripttempl/pru.sc (.data): Merge .bss input sections into the .data output section. * testsuite/ld-elf/orphan3.d: Disable for PRU. Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
2023-01-04Avoid unaligned pointer reads in PEP .idata sectionMark Harmstone1-0/+1
This is something I discovered when working on aarch64, though it's relevant to x86_64 too. The PE32+ imports are located in the .idata section, which starts off with a 20-byte structure for each DLL, containing offsets into the rest of the section. This is the Import Directory Table in https://learn.microsoft.com/en-us/windows/win32/debug/pe-format, which is a concatenation of the .idata$2 sections. This is then followed by an 20 zero bytes generated by the linker script, which calls this .idata$3. After this comes the .idata$4 entries for each function, which the loader overwrites with the function pointers. Because there's no padding between .idata$3 and .idata$4, this means that if there's an even number of DLLs, the function pointers won't be aligned on an 8-byte boundary. Misaligned reads are slower on x86_64, but this is more important on aarch64, as the e.g. `ldr x0, [x0, :lo12:__imp__func]` the compiler might generate requires __imp__func (the .idata$4 entry) to be aligned to 8 bytes. Without this you get IMAGE_REL_ARM64_PAGEOFFSET_12L overflow errors.
2023-01-01Update year range in copyright notice of binutils filesAlan Modra55-106/+106
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.
2022-12-21Keep the .drectve section when performing a relocateable link.Nick Clifton2-2/+2
PR 29900 * scripttempl/pe.sc: Keep the .drectve section when performing a relocateable link. * scripttempl/pep.sc: Likewise.
2022-11-15bfd: linker: merge .sframe sectionsIndu Bhagat1-0/+2
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.
2022-11-03AVR Linker: Allow the start of the data region to specified on the command line.Nick Clifton1-1/+3
PR 29471 * scripttempl/avr.sc (__DATA_REGION_ORIGIN__): Define. If a value has not been provided on the command line then use DATA_ORIGIN. (MEMORY): Use __DATA_REGION_ORIGIN__ as the start of the data region.
2022-06-27drop XC16x bitsJan Beulich3-241/+0
Commit 04f096fb9e25 ("Move the xc16x target to the obsolete list") moved the architecture from the "obsolete but still available" to the "obsolete / support removed" list in config.bfd, making the architecture impossible to enable (except maybe via "enable everything" options"). Note that I didn't touch */po/*.po{,t} on the assumption that these would be updated by some (half)automatic means.
2022-01-13Correct .relr.dyn nocombreloc scriptAlan Modra1-1/+1
* scripttempl/elf.sc (.relr.dyn): Don't depend on $COMBRELOC.
2022-01-12ld: Initial DT_RELR supportH.J. Lu1-0/+4
Add a -z pack-relative-relocs option to enable DT_RELR and create a relr.dyn section for DT_RELR. DT_RELR is implemented with the linker relaxation infrastructure, but it doesn't require the --relax option enabled. -z pack-relative-relocs implies -z combreloc. -z nocombreloc implies -z nopack-relative-relocs. -z pack-relative-relocs is chosen over the similar option in lld, --pack-dyn-relocs=relr, to implement a glibc binary lockout mechanism with a special glibc version symbol, to avoid random crashes of DT_RELR binaries with the existing glibc binaries. bfd/ * elf-bfd.h (elf_link_hash_table): Add srelrdyn. * elflink.c (_bfd_elf_link_create_dynamic_sections): Create a .relr.dyn section for DT_RELR. include/ * bfdlink.h (bfd_link_info): Add enable_dt_relr. ld/ * News: Mention -z pack-relative-relocs and -z nopack-relative-relocs. * ld.texi: Document -z pack-relative-relocs and -z nopack-relative-relocs. * ldelf.c (ldelf_after_parse): Disable DT_RELR if not building PIE nor shared library. Add 3 spare dynamic tags for DT_RELR, DT_RELRSZ and DT_RELRENT. * ldlang.c (lang_relax_sections): Also enable relaxation if DT_RELR is enabled. * emulparams/elf32_x86_64.sh: Source dt-relr.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/dt-relr.sh: New file. * scripttempl/elf.sc: Support .relr.dyn.
2022-01-02Update year range in copyright notice of binutils filesAlan Modra58-112/+112
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.
2021-11-30ld: pru: Add pru_irq_map output sectionNick Clifton1-0/+6
* scripttempl/pru.sc (.pru_irq_map): Define output section. * testsuite/ld-pru/pru_irq_map-1.d: New test. * testsuite/ld-pru/pru_irq_map-2.d: New test. * testsuite/ld-pru/pru_irq_map.s: New test.
2021-11-25ld: fix POSIX shell test usageMike Frysinger2-2/+2
POSIX test uses = for compares, not == which is a bashism.
2021-09-30ld: pru: Fix resource_table output section alignmentDimitar Dimitrov1-4/+3
My commit 261980de18b added alignment for the resource table symbol. But it is wrong. The Linux remoteproc driver loads and interprets the contents of the .resource_table ELF section, not of a table symbol. Without this patch, if the linker happens to output padding for symbol alignment, then the resource table contents as viewed by the kernel loader would "shift" and look corrupted. ld/ChangeLog: * scripttempl/pru.sc (.resource_table): Align the output section, not the first symbol. Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
2021-05-10PRU: Add alignment for resource table, and allow sizes of memory regions to ↵Dimitar Dimitrov1-2/+9
be set from the command line. ld * scripttempl/pru.sc (.resource_table): Add ALIGN directive. Use symbols for memory sizes.
2021-03-12aix: implement TLS relocation for gas and ldClément Chigot1-1/+29
Add support for TLS in XCOFF. Amongst the things done by this commit: - Update XCOFF auxialiary header to match new version and allow TLS sections. - Add TLS sections (.tdata and .tbss) support in gas and ld. - Add support for the TLS relocations in gas and ld. Two different types BFD_RELOC are created for PPC and PPC64 as the size is a pointer, thus distinct in 32 or 64bit. The addresses given by ld to .tdata and .tbss is a bit special. In XCOFF, these addresses are actually offsets from the TLS pointer computed at runtime. AIX assembly and linker does the same. In top of that, the .tdata must be before .data (this is mandatory for AIX loader). Thus, the aix ld script is recomputing "." before .data to restore its original value. There might be a simpler way, but this one is working. Optimisation linked to TLS relocations aren't yet implemented. bfd/ * reloc.c (BFD_RELOC_PPC_TLS_LE, BFD_RELOC_PPC_TLS_IE, BFD_RELOC_PPC_TLS_M, BFD_RELOC_PPC_TLS_ML, BFD_RELOC_PPC64_TLS_GD, BFD_RELOC_PPC64_TLS_LD, BFD_RELOC_PPC64_TLS_LE, BFD_RELOC_PPC64_TLS_IE, BFD_RELOC_PPC64_TLS_M, BFD_RELOC_PPC64_TLS_ML): New relocations. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. * coff-rs6000.c (xcoff_calculate_relocation): Call xcoff_reloc_type_tls for TLS relocations. (xcoff_howto_table): Implement TLS relocations. (_bfd_xcoff_reloc_type_lookup): Add cases TLS relocations. (xcoff_reloc_type_tls): New function. * coff64-rs6000.c (xcoff_calculate_relocation): Likewise. (xcoff_howto_table): Likewise. (_bfd_xcoff_reloc_type_lookup): Likewise. * coffcode.h (sec_to_styp_flags): Handle TLS sections. (styp_to_sec_flags): Likewise. (coff_compute_section_file_positions): Avoid file offset optimisation for .data when the previous section is .tdata. (coff_write_object_contents): Handle TLS sections. * coffswap.h (coff_swap_aouthdr_out): Add support for new fields in aouthdr. * libxcoff.h (xcoff_reloc_type_tls): Add prototype. * xcofflink.c (xcoff_link_add_symbols): Handle XMC_UL. (xcoff_need_ldrel_p): Add cases for TLS relocations. (xcoff_create_ldrel): Add l_symndx for TLS sections. gas/ * config/tc-ppc.c (ppc_xcoff_text_section, ppc_xcoff_data_section, (ppc_xcoff_bss_section, ppc_xcoff_tdata_section, (ppc_xcoff_tbss_section): New variables. (ppc_text_subsegment, ppc_text_csects, ppc_data_subgments, (ppc_data_csects): Removed. (ppc_xcoff_section_is_initialized, ppc_init_xcoff_section, ppc_xcoff_parse_cons): New functions. (md_being): Initialize XCOFF sections. (ppc_xcoff_suffix): Add support for TLS relocations (fixup_size, md_apply_fix): Add support for new BFD_RELOC. (ppc_change_csect): Handle XMC_TL, XMC_UL. Correctly, add XMC_BS to .bss section. Handle new XCOFF section variables. (ppc_comm): Likewise. (ppc_toc): Likewise. (ppc_symbol_new_hook): Likewise. (ppc_frob_symbol): Likewise. (ppc_fix_adjustable): Add tbss support. * config/tc-ppc.h (TC_PARSE_CONS_EXPRESSION): New define. (ppc_xcoff_parse_cons): Add prototype. (struct ppc_xcoff_section): New structure. ld/ * emultempl/aix.em: Ensure .tdata section is removed if empty, even with -r flag. * scripttempl/aix.sc: Handle TLS sections. * testsuite/ld-powerpc/aix52.exp: Add new tests. * testsuite/ld-powerpc/aix-tls-reloc-32.d: New test. * testsuite/ld-powerpc/aix-tls-reloc-64.d: New test. * testsuite/ld-powerpc/aix-tls-reloc.ex: New test. * testsuite/ld-powerpc/aix-tls-reloc.s: New test. * testsuite/ld-powerpc/aix-tls-section-32.d: New test. * testsuite/ld-powerpc/aix-tls-section-64.d: New test. * testsuite/ld-powerpc/aix-tls-section.ex: New test. * testsuite/ld-powerpc/aix-tls-section.s: New test. include/ * coff/internal.h (struct internal_aouthdr): Add new fields. * coff/rs6000.h (AOUTHDRÃ): Add new fields. * coff/rs6k64.h (struct external_filehdr): Likewise. * coff/xcoff.h (_TDATA), _TBSS): New defines (RS6K_AOUTHDR_TLS_LE, RS6K_AOUTHDR_RAS, RS6K_AOUTHDR_ALGNTDATA, RS6K_AOUTHDR_SHR_SYMTAB, RS6K_AOUTHDR_FORK_POLICY, RS6K_AOUTHDR_FORK_COR): New defines. (XMC_TU): Removed. (XMC_UL): New define.
2021-03-12aix: implement R_TOCU and R_TOCL relocationsClément Chigot1-0/+1
Implement support for largetoc on XCOFF. R_TOCU and R_TOCL are referenced by the new BFD defines: BFD_RELOC_PPC_TOC16_HI and BFD_RELOC_PPC_TOC16_LO. A new toc storage class is added XMC_TE. In order to correctly handle R_TOCU, the logic behind xcoff_reloc_type_toc is changed to compute the whole TOC offset instead of just the difference between the "link" offset and the "assembly" offset. In gas, add a function to transform addis format used by AIX "addis RT, D(RA)" into the ELF format "addis RT, RA, SI". bfd/ * reloc.c (BFD_RELOC_PPC_TOC16_HI, BFD_RELOC_PPC_TOC16_LO): New relocations. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. * coff-rs6000.c (xcoff_calculate_relocation): Call xcoff_reloc_type_toc for R_TOCU and R_TOCL. (xcoff_howto_table): Remove src_mask for TOC relocations. Add R_TOCU and R_TOCL howtos. (_bfd_xcoff_reloc_type_lookup): Add cases for BFD_RELOC_PPC_TOC16_HI and BFD_RELOC_PPC_TOC16_LO. (xcoff_reloc_type_toc): Compute the whole offset. Implement R_TOCU and R_TOCL. * coff64-rs6000.c (xcoff64_calculate_relocation): Likewise. (xcoff64_howto_table): Likewise. (xcoff64_reloc_type_lookup): Likewise. gas/ * config/tc-ppc.c (ppc_xcoff_suffix): New function. (MAP, MAP32, MAP64): New macros for XCOFF. (ppc_xcoff_fixup_addis): New function. (ppc_is_toc_sym): Handle XMC_TE. (fixup_size): Add cases for BFD_RELOC_PPC_TOC16_HI and BFD_RELOC_PPC_TOC16_LO. (md_assemble): Call ppc_xcoff_fixup_addis for XCOFF. (ppc_change_csect): Handle XMC_TE. (ppc_tc): Enable .tc symbols to have only a XMC_TC or XMC_TE storage class. (ppc_symbol_new_hook): Handle XMC_TE. (ppc_frob_symbol): Likewise. (ppc_fix_adjustable): Likewise. (md_apply_fix): Handle BFD_RELOC_PPC_TOC16_HI and BFD_RELOC_PPC_TOC16_LO. ld/ * scripttempl/aix.sc: Add .te to .data section. * testsuite/ld-powerpc/aix52.exp: Add test structure for AIX7+. Add aix-largetoc-1 test. * testsuite/ld-powerpc/aix-largetoc-1-32.d: New test. * testsuite/ld-powerpc/aix-largetoc-1-64.d: New test. * testsuite/ld-powerpc/aix-largetoc-1.ex: New test. * testsuite/ld-powerpc/aix-largetoc-1.s: New test.
2021-03-10bfd: strip symbols not representable in COFF/PE symbol tableJan Beulich1-1/+1
The offset-within-section field in the symbol table entry is only 32 bits wide, so rather than emitting bogus entries omit them, and issue a diagnostic identifying the issue. This requires adjusting the PR/22267 test to no longer produce symbols with out of range values on 64-bit BFD. This also depends on adjustments to testsuite/ld-scripts/map-address.* made by an earlier patch. The purpose of the test can very well be achieved nevertheless.
2021-03-01Add DWARF-5 section names to PE and PEP linker scripts.Nick Clifton2-31/+137
PR 27268 * scripttempl/pe.sc: Add DWARF-5 section names. * scripttempl/pep.sc: Likewise.
2021-02-09Remove arm-symbianelfAlan Modra1-417/+0
* configure.ac: Delete arm*-*-symbianelf* entry. * configure: Regenerate. bfd/ * config.bfd (arm*-*-symbianelf*): Move from obsolete to removed. * configure.ac: Delete symbian entries. * elf-bfd.h (enum elf_target_os): Delete is_symbian. * elf32-arm.c: Remove symbian support. Formatting. * targets.c: Delete symbian entries. * configure: Regenerate. binutils/ * testsuite/lib/binutils-common.exp (supports_gnu_osabi): Remove symbianelf. gas/ * Makefile.am (TARG_ENV_HFILES): Remove config/te-symbian.h. * config/tc-arm.c (elf32_arm_target_format): Remove TE_SYMBIAN support. * config/te-symbian.h: Delete. * configure.tgt: Remove arm-*-symbianelf*. * testsuite/gas/arm/arch4t-eabi.d: Don't mention symbianelf in target selection. * testsuite/gas/arm/arch4t.d: Likewise. * testsuite/gas/arm/got_prel.d: Likewise. * testsuite/gas/arm/mapdir.d: Likewise. * testsuite/gas/arm/mapmisc.d: Likewise. * testsuite/gas/arm/mapsecs.d: Likewise. * testsuite/gas/arm/mapshort-eabi.d: Likewise. * testsuite/gas/arm/thumb-eabi.d: Likewise. * testsuite/gas/arm/thumb.d: Likewise. * testsuite/gas/arm/thumbrel.d: Likewise. * Makefile.in: Regenerate. * po/POTFILES.in: Regenerate. ld/ * Makefile.am (ALL_EMULATION_SOURCES): Remove earmsymbian.c. Don't include symbian dep file. * configure.tgt: Remove arm*-*-symbianelf* entry. * emulparams/armsymbian.sh: Delete. * ld.texi: Don't mention symbian. * scripttempl/armbpabi.sc: Delete. * testsuite/ld-arm/symbian-seg1.d: Delete. * testsuite/ld-arm/symbian-seg1.s: Delete. * testsuite/ld-arm/arm-elf.exp: Don't run symbian-seg1. * Makefile.in: Regenerate. * po/BLD-POTFILES.in: Regenerate.
2021-01-26PR27226, ld.bfd contains huge .rodata sectionAlan Modra1-1/+1
This makes it possible to build ld without any compiled-in scripts, by setting COMPILE_IN=no in the environment. pe, beos and pdp11 targets didn't support scripts from the file system, with pdp11 nastily editing the ld/ldscripts file so that the built-in script didn't match. PR 27226 * emulparams/alphavms.sh: Don't set COMPILE_IN. * emulparams/elf64_ia64_vms.sh: Likewise. * emulparams/elf64mmix.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/mmo.sh: Likewise. * emulparams/pdp11.sh: Set DATA_SEG_ADDR. * scripttempl/pdp11.sc: Use it. * emultempl/pdp11.em: Don't edit .xn script for separate_code, instead use .xe script. Support scripts from file system. * emultempl/beos.em: Support scripts from file system. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * testsuite/ld-bootstrap/bootstrap.exp: Make tmpdir/ldscripts link.
2021-01-25Add some more DWARF-5 sectionsFangrui Song1-3/+5
2021-01-25Update linker scripts with the names of new DWARF-5 debug sections.Nick Clifton1-7/+11
* scripttempl/DWARF.sc: Add .debug_loclists, .debug_rnglists, .debug_line_str and .debug_str_offsets. Move .debug_macro and .debug_addr into DWARF-5 section.
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