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2015-03-25[AArch64] Remove padding before stub sections.Marcus Shawcroft1-0/+5
Lower stub alignment from 8 to 4 bytes thus removing padding between input section content and stub section content.
2015-03-23[AArch64] Adjust layout emultempl/aarch64elf.em.Marcus Shawcroft1-0/+5
2015-03-18Use %F instead of %X for einfoChen Gang1-0/+4
When src or dst is NULL, the next fread or fwrite will cause a segmentation fault, so we need to treat it as fatal. * ldmain.c (main): Use %F instead of %X for einfo.
2015-03-02Correct -z nocopyreloc docAlan Modra1-0/+4
This option is misnamed. It should probably be called -z nodynbss, but it's too late to change now. * ld.texinfo (Options <-z nocopyreloc>): Rewrite.
2015-02-27Fixes a problem with the linker script parser not always handling the ! ↵Nick Clifton1-0/+6
character in memort region attributes. PR ld/17900 * ldlang.c (lang_set_flags): Allow exclamation mark to reverse the sense of the following memory region attribute characters.
2015-02-27Fix recent h8300 configury changesAlan Modra1-0/+7
* Makefile.am (ALL_EMULATION_SOURCES): Sort new h8300 entries. (eh8300elf_linux.c, eh8300helf_linux.c, eh8300self_linux.c, eh8300sxelf_linux.c): Do not invoke genscripts here. * Makefile.in: Regenerate.
2015-02-24Adds support for generating notes in V850 binaries.Nick Clifton1-0/+12
bfd * elf32-v850.c (v850_set_note): New function. Creates a Renesas style note entry. (v850_elf_make_note_section): New function. Creates a note section. (v850_elf_create_sections): New function. Create a note section if one is not already present. (v850_elf_set_note): New function. Adds a note to a bfd. (v850_elf_copy_private_bfd_data): New function. Copies V850 notes. (v850_elf_merge_notes): New function. Merges V850 notes. (print_v850_note): New function. Displays a V850 note. (v850_elf_print_notes): New function. Displays all notes attached to a bfd. (v850_elf_merge_private_bfd_data): Call v850_elf_merge_notes. (v850_elf_print_private_bfd_data): Call v850_elf_print_notes. (v850_elf_fake_sections): Set the type of the V850 note section. * bfd-in.h (v850_elf_create_sections): Add prototype. (v850_elf_set_note): Add prototype. * bfd-in2.h: Regenerate. binutils* readelf.c (get_machine_flags): Remove deprecated V850 machine flags. (get_v850_section_type_name): New function. Handles V850 special sections. (get_section_type_name): Add support for V850. (get_v850_elf_note_type): New function. Returns the name of a V850 note. (print_v850_note): New function. Prints a V850 note. (process_v850_notes): New function. Prints V850 notes. (process_note_sections): Add support for V850. binutils/testsute * binutils-all/objcopy.exp: Skip the strip-10 test for the V850. gas * config/tc-v850.c (soft_float): New variable. (v850_data_8): New variable. (md_show_usage): Add -msoft-float/-mhard-float. (md_parse_option): Likewise. (md_begin): Set the default value of soft_float. (v850_md_end): New function. Creates a note section. * config/tc-v850.h (md_end): Define. * doc/c-v850.texi: Document -msoft-float/-mhard-float. gas/testsuite * gas/elf/elf.exp: Add special version of the section2 test for the V850. * gas/elf/section2.e-v850: New file. include/elf * v850.h (EF_RH850_SIMD): Delete deprecated flag. (EF_RH850_CACHE): Likewise. (EF_RH850_MMU): Likewise. (EF_RH850_DATA_ALIGN8): Likewise. (SHT_RENESAS_IOP): Fix typo in name. (SHT_RENESAS_INFO): Define. (V850_NOTE_SECNAME): Define. (SIZEOF_V850_NOTE): Define. (V850_NOTE_NAME): Define. (enum v850_notes): New enum. (NUM_V850_NOTES): Define. ld/ChangeLog 2015-02-24 Nick Clifton <nickc@redhat.com> * Makefile.am (ev850.c): Add dependency upon $(srcdir)/emultempl/v850elf.em. (ev850_rh850.c): Likewise. * Makefile.in: Regenerate. * emultempl/v850elf.em: New file. * emulparams/v850.sh (EXTRA_EM_FILE): Define. * emulparams/v850_rh850.sh (EXTRA_EM_FILE): Define. * scripttempl/v850.sc: Add .note.renesas section. * scripttempl/v850_rh850.sc: Likewise. ld/testsuite * ld-elf/extract-symbol-1sec.d: Expect to fail on the V850.
2015-02-24This patch modifies the AVR linker script templates to use ↵Senthil Kumar Selvaraj1-0/+7
__<name>_REGION_LENGTH__ symbols, if provided, for setting memory region lengths, defaulting to the current constant values otherwise. ld * scripttempl/avr.sc: Add new user_signatures region. Define and Use symbols for all region lengths. * scripttempl/avrtiny.sc: Define and use symbols for all region lengths. testsuite * ld-avr/region_overflow.d: New test. * ld-avr/region_overflow.s: Likewise.
2015-02-23Add support for the h8300-linux target.Yoshinori Sato1-0/+10
ld * Makefile.am: (ALL_EMULATION_SOURCES): Add new emulations. * Makefile.in: Regenerate. * configure.tgt: Add h8300-*-linux * emulparams/h8300elf_linux.sh: Add new emulation. * emulparams/h8300helf_linux.sh: Likewise. * emulparams/h8300self_linux.sh: Likewise. * emulparams/h8300sxelf_linux.sh: Likewise. bfd * config.bfd: Add h8300-*-linux. * configure.ac: Add h8300_elf32_linux_vec. * configure: Regenerate. * elf32-h8300.c: Likewise. * targets.c(_bfd_target_vector): Likewise. gas * config/tc-h8300.c (line_separater_chars): Add a version for h8300-linux that includes a separator. (default_mach): New variable. (md_main): Use it. (md_longopts): Add '--march' option. (md_parse_option): Parse the new option. * config/tc-h8300.h (TARGET_FORMAT): Add elf32-h8300-linux. * configure.tgt: Add h8300-*-linux * doc/c-h8300.texi: Document --march.
2015-02-23Fixes a problem where "ld -ixxx" would report an error of "ld: bad -rpath ↵Nick Clifton1-0/+5
option". * lexsup.c (parse_args): Produce a more reasonable error message when -ixxx or -rxxx is the last option on the linker command line.
2015-02-14Add a testcase for PR ld/17973H.J. Lu1-0/+8
ld/ PR ld/17973 * testplug2.c (allsymbolsread_silent): New. (set_register_hook): Handle allsymbolsreadsilent. (onall_symbols_read): Skip a message if allsymbolsread_silent is TRUE. ld/testsuite/ PR ld/17973 * ld-plugin/plugin.exp (regassilent): New. Compile tmpdir/dummy.s and ld-plugin/pr17973.s. (plugin_tests): Add a test for PR ld/17973. * ld-plugin/pr17973.d: New file. * ld-plugin/pr17973.s: Likewise.
2015-02-14PR ld/17973 LTO file symsAlan Modra1-0/+9
LTO output objects have an STT_FILE symbol using the name of the file, a temporary file. This results in executables that can't be exactly reproduced, so the file name needs to be dropped. We don't want to lose all file symbols when linking a mix of lto and non-lto objects as a file symbol can be used to figure which source file generated a given local symbol. So lto output objects need to be marked. I chose to mark lto output objects with a new bfd flag. This flag is also used to fix a bug in the link-once handling; An object being loaded after "loading_lto_outputs" is set might be one extracted from an archive to satisfy new references from lto objects, not an lto object itself. The new flag is copied from archive to elements, and the same done for no_export. This fixes a bug in that --exclude-libs doesn't work with thin archives. I'm not completely happy with this part of the patch and may revist this to avoid the hack in _bfd_look_for_bfd_in_cache. PR ld/17973 include/ * bfdlink.h (struct bfd_link_info): Delete loading_lto_outputs. bfd/ * bfd.c (struct bfd): Add lto_output. * linker.c (_bfd_handle_already_linked): Explicitly test for objects added by the lto plugin. * opncls.c (_bfd_new_bfd_contained_in): Copy lto_output and no_export flags from archive. * archive.c (open_nested_file): New function, setting lto_output and no_export, extracted from.. (find_nested_archive): ..here. Flip params. Rename from _bfd_find_nested_archive. (_bfd_get_elt_at_filepos): Correct var typo. Use open_nested_file. (_bfd_look_for_bfd_in_cache): Copy no_export. * elflink.c (elf_link_add_object_symbols): Remove now unnecessary my_archive->no_export test. (elf_link_input_bfd): Drop existing lto_output STT_FILE syms. Don't use the file name when adding lto_output STT_FILE sym. * bfd-in2.h: Regenerate. ld/ * ldlang.h (struct lang_input_statement_flags): Add lto_output. * ldlang.c (lang_process): Don't set loading_lto_outputs. * ldfile.c (ldfile_try_open_bfd): Transfer entry flags.lto_output to bfd. * plugin.c (add_input_file, add_input_library): Set flags.lto_output.
2015-02-13Mention support for LLVM plugin in NEWSH.J. Lu1-0/+4
* NEWS: Mention support for LLVM plugin.
2015-02-13Correct ld.texinfo cross referenceAlan Modra1-0/+4
Fixes warning: @pxref cross-reference name should not contain `:' * ld.texinfo (Options <--defsym>): Correct cross reference.
2015-02-11Add --[no-]map-whole-files for gold compatibilityH.J. Lu1-0/+5
Gold supports: --map-whole-files Map whole files to memory (default on 64-bit hosts) --no-map-whole-files Map relevant file parts to memory (default on 32-bit hosts) This patch adds --[no-]map-whole-files command line options for gold compatibility. They are ignored for ld. * lexsup.c (ld_options): Add --[no-]map-whole-files for gold option compatibility.
2015-02-11Output "warning:" or "error:" in plugin messagesH.J. Lu1-0/+6
When plugin generates LDPL_WARNING, LDPL_FATAL and LDPL_ERROR messages, linker should display "warning:" or "error:" in plugin messages like regular linker messages. ld/ * plugin.c (message): Output "warning:" for LDPL_WARNING. Output "error:" for LDPL_FATAL and LDPL_ERROR. * testplug2.c (parse_option): Handle fatal, error and warning. ld/testsuite/ * ld-plugin/plugin-27.d: New. * ld-plugin/plugin-28.d: Likewise. * ld-plugin/plugin-29.d: Likewise. * plugin.exp (plugin_tests): Add tests for LDPL_FATAL, LDPL_ERROR and LDPL_WARNING.
2015-02-11Remove unused dump_tv_tagH.J. Lu1-0/+8
* testplug2.c (dump_tv_tag): Removed. (onall_symbols_read): Return LDPS_ERR if the file descriptor isn't closed. * testplug3.c (dump_tv_tag): Removed. (onclaim_file): Fix typo.
2015-02-11Add ChangeLogs for 439b7f41bH.J. Lu1-0/+15
2015-02-11Add ChangeLogs for commit 5ae0078cdH.J. Lu1-0/+16
2015-02-10Initialize use_mmapH.J. Lu1-0/+4
* plugin.c (plugin_maybe_claim): Initialize use_mmap.
2015-02-10Unmap the buffer if plugin didn't claim the fileH.J. Lu1-0/+9
If plugin didn't claim the file, unmap the buffer. * plugin.c (plugin_input_file_t): Add use_mmap. (plugin_pagesize): New. (get_view): Use plugin_pagesize. Set use_mmap if mmap is used. (plugin_load_plugins): Initialize plugin_pagesize. (plugin_maybe_claim): Unmap the buffer if plugin didn't claim the file.
2015-02-10Align offset passed to mmapH.J. Lu1-0/+4
Offset passed to mmap must be a multiple of the page size. This patch aligns offset passed to mmap. * plugin.c (get_view): Align offset passed to mmap.
2015-02-08Don't bfd_check_format if not neededH.J. Lu1-0/+5
When plugin isn't active or there is no thing more to claim, we don't need to call bfd_check_format. * ldfile.c (ldfile_try_open_bfd): Don't call bfd_check_format if plugin isn't active or there is no thing more to claim.
2015-02-08Check format against bfd_object directlyH.J. Lu1-0/+5
There is no need to call bfd_check_format. We should just check format against bfd_object directly. * plugin.c (plugin_maybe_claim): Check format against bfd_object directly.
2015-02-07Replace entry->the_bfd with ibfdH.J. Lu1-0/+5
* plugin.c (plugin_maybe_claim): Replace entry->the_bfd with ibfd.
2015-02-07Update plugin_maybe_claimH.J. Lu1-0/+13
This patch removes the argument of pointer to struct ld_plugin_input_file. This is the first step to extract a plugin_object_p out of plugin_maybe_claim for BFD. * plugin.c: Include "libbfd.h". (plugin_strdup): New. (plugin_maybe_claim): Remove the argument of pointer to struct ld_plugin_input_file. Open and handle input entry. * plugin.h (plugin_maybe_claim): Updated. * ldfile.c (ldfile_try_open_bfd): Call plugin_maybe_claim directly without passing a pointer to struct ld_plugin_input_file. * ldmain.c: Don't include "libbfd.h". (add_archive_element): Call plugin_maybe_claim directly without passing a pointer to struct ld_plugin_input_file.
2015-02-06Document -z text, -z notext and -z textoffH.J. Lu1-0/+6
* ld.texinfo: Document -z text, -z notext and -z textoff. * emultempl/elf32.em (gld${EMULATION_NAME}_list_options): Add -z text, -z notext and -z textoff.
2015-02-06Use mmap and cache the view buffer for get_viewH.J. Lu1-0/+14
This patch uses mmap if it is available and works. It also caches the view buffer for get_view. * configure.ac: Add AC_FUNC_MMAP. * config.in: Regenerated. * configure: Likewise. * plugin.c: Include <sys/mman.h>. (MAP_FAILED): New. Defined if not defined. (PROT_READ): Likewise. (MAP_PRIVATE): Likewise. (view_buffer_t): New. (plugin_input_file_t): Add view_buffer. (get_view): Try mmap and cache the view buffer. (plugin_maybe_claim): Initialize view_buffer.
2015-02-05Close fd only if fd != -1H.J. Lu1-0/+5
This patch closes fd only if fd != -1. * plugin.c (release_input_file): Set fd to -1 after closing it. (plugin_maybe_claim): Close fd only if fd != -1.
2015-02-05Add plugin_input_file_tH.J. Lu1-0/+14
This patchs adds plugin_input_file_t to implement get_input_file, get_view and release_input_file. The maximum memeory overhead per IR input file are about 40 bytes for plugin_input_file_t plus the memory to store input IR filename. According to http://gcc.gnu.org/wiki/whopr/driver RELEASE_INPUT_FILE: Function pointer to the linker interface that releases a file descriptor for a claimed input file. The plug-in library must call this interface for each file descriptor obtained by the "get input file" interface. It must release all such file descriptors before returning from the WPA phase. However, GCC plug-in library doesn't use the "get input file" interface. It processed the IR input in the claim file handler. Since the the file descriptor opened for the IR input was unused after the claim file handler returns and GCC plug-in library before GCC 5 doesn't call the RELEASE_INPUT_FILE function pointer, ld closed the file descriptor to avoid leaking file descriptor. But this approach doesn't work with other plug-in libraries which uses the "get input file", "get view" and "release input file" interfaces. To avoid file descriptor leak with GCC prior to GCC 5 and support other plug-in libraries at the same time, we close the file descriptor only if the input IR file is a bfd_object file. This scheme doesn't work when a plug-in library needs the file descriptor and its IR is stored in bfd_object file. PR ld/17878 * plugin.c: Include <errno.h>. (errno): New. Declare if needed. (plugin_input_file_t): New. (get_input_file): Implemented. (get_view): Likewise. (release_input_file): Likewise. (add_symbols): Updated. (get_symbols): Likewise. (plugin_maybe_claim): Allocate a plugin_input_file_t. Close fd only for a bfd_object input.
2015-02-02xlc -z relro toc section fixesAlan Modra1-0/+7
Moving .toc out of .got caused us to lose toc sorting and multi-toc support. * emultempl/ppc64elf.em (toc_section_name): New var. (ppc_after_open): Set it. (ppc_before_allocation): Use it. (gld${EMULATION_NAME}_after_allocation): Here too.
2015-01-29Remove plugin_active_plugins_p()H.J. Lu1-0/+9
Replace plugin_active_plugins_p() with link_info.lto_plugin_active. * ldfile.c (ldfile_try_open_bfd): Replace plugin_active_plugins_p() with link_info.lto_plugin_active. * ldlang.c (lang_process): Likewise. * ldmain.c (add_archive_element): Likewise. * plugin.c (plugin_active_plugins_p): Removed. * plugin.h (plugin_active_plugins_p): Likewise.
2015-01-28Make plugin_get_ir_dummy_bfd staticH.J. Lu1-0/+6
* plugin.h (plugin_get_ir_dummy_bfd): Removed. Move comments to ... * plugin.c (plugin_get_ir_dummy_bfd): Here. Make it static.
2015-01-28The initial support for LDPT_GET_VIEWH.J. Lu1-0/+11
This patch adds the initial support for LDPT_GET_VIEW. ld/ PR ld/17878 * plugin.c (tv_header_tags(): Add LDPT_GET_VIEW. (get_view): New function. (set_tv_header): Handle LDPT_GET_VIEW. * testplug.c (tag_names): Add LDPT_GET_VIEW. (tv_get_view): New. (dump_tv_tag): Handle LDPT_GET_VIEW. (parse_tv_tag): Likewise. ld/testsuite/ PR ld/17878 * ld-plugin/plugin-1.d: Add LDPT_GET_VIEW. * ld-plugin/plugin-10.d: Likewise. * ld-plugin/plugin-11.d: Likewise. * ld-plugin/plugin-2.d: Likewise. * ld-plugin/plugin-3.d: Likewise. * ld-plugin/plugin-4.d: Likewise. * ld-plugin/plugin-5.d: Likewise. * ld-plugin/plugin-6.d: Likewise. * ld-plugin/plugin-7.d: Likewise. * ld-plugin/plugin-8.d: Likewise. * ld-plugin/plugin-9.d: Likewise.
2015-01-28PowerPC64 changes for xlcAlan Modra1-0/+8
The changes to reorder sections for better relro protection on powerpc64, 3e2b0f31, 23283c1b, and 5ad18f16, run into a problem with xlc. xlc -qdatalocal puts global variables into .toc, which means that .toc must be writable. The simplest way to accomplish this is to edit the linker script to remove .toc sections from .got on detecting xlc object files. bfd/ * elf64-ppc.h (struct ppc64_elf_params): Add "object_in_toc". * elf64-ppc.c (ppc64_elf_add_symbol_hook): Assume that global symbols in .toc indicate xlc compiled code that might require a rw .toc. ld/ * emulparams/elf64ppc.sh (INITIAL_READWRITE_SECTIONS): Define. * emultempl/ppc64elf.em (params): Init new field. (ppc_after_open): New function. (LDEMUL_AFTER_OPEN): Define. * ldlang.c (lang_final): Whitespace fix. ld/testsuite/ * ld-powerpc/tocvar.d, * ld-powerpc/tocvar.s: New test. * ld-powerpc/tocnovar.d, * ld-powerpc/tocnovar.s: New test. * ld-powerpc/powerpc.exp: Run tocvar and tocnovar.
2015-01-28FT32 initial supportAlan Modra1-0/+8
FT32 is a new 32-bit RISC core developed by FTDI for embedded applications. * configure.ac: Add FT32 support. * configure: Regenerate. bfd/ * Makefile.am: Add FT32 files. * archures.c (enum bfd_architecture): Add bfd_arch_ft32. (bfd_mach_ft32): Define. (bfd_ft32_arch): Declare. (bfd_archures_list): Add bfd_ft32_arch. * config.bfd: Handle FT32. * configure.ac: Likewise. * cpu-ft32.c: New file. * elf32-ft32.c: New file. * reloc.c (BFD_RELOC_FT32_10, BFD_RELOC_FT32_20, BFD_RELOC_FT32_17, BFD_RELOC_FT32_18): Define. * targets.c (_bfd_target_vector): Add ft32_elf32_vec. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. * Makefile.in: Regenerate. * configure: Regenerate. * po/SRC-POTFILES.in: Regenerate. binutils/ * readelf.c: Add FT32 support. gas/ * Makefile.am: Add FT32 files. * config/tc-ft32.c: New file. * config/tc-ft32.h: New file. * configure.tgt: Add FT32 support. * Makefile.in: Regenerate. * po/POTFILES.in: Regenerate. gas/testsuite/ * gas/ft32/ft32.exp: New file. * gas/ft32/insn.d: New file. * gas/ft32/insn.s: New file. include/ * dis-asm.h (print_insn_ft32): Declare. include/elf/ * common.h (EM_FT32): Define. * ft32.h: New file. include/opcode/ * ft32.h: New file. ld/ * Makefile.am: Add FT32 files. * configure.tgt: Handle FT32 target. * emulparams/elf32ft32.sh: New file. * scripttempl/ft32.sc: New file. * Makefile.in: Regenerate. opcodes/ * Makefile.am: Add FT32 files. * configure.ac: Handle FT32. * disassemble.c (disassembler): Call print_insn_ft32. * ft32-dis.c: New file. * ft32-opc.c: New file. * Makefile.in: Regenerate. * configure: Regenerate. * po/POTFILES.in: Regenerate.
2015-01-28Allow symbols in MEMORY region specificationSenthil Kumar Selvaraj1-0/+14
This patch fixes PR 4643 by allowing symbols in the LENGTH and ORIGIN fields of MEMORY regions. Previously, only constants and constant expressions are allowed. For the AVR target, this helps define memory constraints more accurately (per device), without having to create a ton of device specific linker scripts. ld/ PR 4643 * ldexp.c (fold_name): Fold LENGTH only after lang_first_phase_enum. * ldgram.y (memory_spec): Don't evaluate ORIGIN and LENGTH rightaway. * ldlang.h (struct memory_region_struct): Add origin_exp and length_exp fields. * ldlang.c (lang_do_memory_regions): New. (lang_memory_region_lookup): Initialize origin_exp and length_exp fields. (lang_process): Call lang_do_memory_regions. ld/testsuite/ * ld-scripts/memory.t: Define new symbol tred. * ld-scripts/memory_sym.t: New. * ld-scripts/script.exp: Perform MEMORY with symbols test, and conditionally check values of linker symbols.
2015-01-20Reorder more powerpc64 sections again for -z relroAlan Modra1-0/+10
.toc1 is the second level TOC section used by gcc's -mminimal-toc. It too should be read-only after relocation. Also, the last patch description mentioned .sbss moving but didn't actually do that, so fix that problem. .tocbss (whatever that is) was before .sbss previously, so move that one too. * emulparams/elf64ppc.sh (OTHER_SDATA_SECTIONS): Use in place of.. (OTHER_BSS_SYMBOLS): ..this. (OTHER_PLT_RELOC_SECTIONS): Don't define. (OTHER_GOT_RELOC_SECTIONS): Add rela.toc1 and rela.tocbss. (OTHER_READWRITE_SECTIONS): Don't define. Move .toc1 to.. (OTHER_RELRO_SECTIONS_2): ..here. * scripttempl/elf.sc: Move SBSS too when DATA_SDATA.
2015-01-20ld: Don't evaluate unneeded PROVIDE expressions.Andrew Burgess1-0/+7
When creating a linker mapfile (using -Map=MAPFILE), we previously would always try to evaluate the expression from a PROVIDE statement. However, this is not always safe, consider: PROVIDE (foo = 0x10); PROVIDE (bar = foo); In this example, if neither 'foo' or 'bar' is needed, then while generating the linker mapfile evaluating the expression for 'foo' is harmless (just the value 0x10). However, evaluating the expression for 'bar' requires the symbol 'foo', which is undefined. This used to cause a fatal error. This patch changes the behaviour, so that when the destination of the PROVIDE is not defined (that is the PROVIDE is not going to provide anything) the expression is not evaluated, and instead a special string is displayed to indicate that the linker is discarding the PROVIDE statement. This change not only fixes the spurious undefined symbol error, but also means that a user can now tell if a PROVIDE statement has provided anything by inspecting the linker mapfile, something that could not be done before. ld/ChangeLog: * ldlang.c (print_assignment): Only evaluate the expression for a PROVIDE'd assignment when the destination is being defined. Display a special message for PROVIDE'd symbols that are not being provided. ld/testsuite/ChangeLog: * ld-scripts/provide-4.d: New file. * ld-scripts/provide-4-map.d: New file. * ld-scripts/provide-4.t: New file. * ld-scripts/provide-5.d: New file. * ld-scripts/provide-5.s: New file. * ld-scripts/provide-5-map.d: New file. * ld-scripts/provide-5.t: New file. * ld-scripts/provide.exp: Run the provide-4.d and provide-5.d tests.
2015-01-20Reorder more powerpc64 sections for -z relroAlan Modra1-0/+11
This moves .got too, which requires .sdata and .sbss to move with it, because these sections share addressing via the toc pointer and with small-model code must be within a 16-bit signed offset. .plt, .iplt and .branch_lt must also be moved since they are addressed via a 32-bit offset from the toc pointer, and we might have a very large .data section. This change means we may have some bss style sections before the data segment, necessitating another PT_LOAD header. Also, since _edata is defined at the end of the data segment it's possible with an empty .data to have _edata at the end of .plt which looks a little unusual since .plt is a bss style section. That should only happen rarely in real world binaries, but does occur in the ld testsuite. ld/ * emulparams/elf64ppc.sh (BSS_PLT): Don't define. (OTHER_READWRITE_SECTIONS): Move .branch_lt to.. (OTHER_RELRO_SECTIONS_2): ..here. (DATA_GOT, SEPARATE_GOTPLT, DATA_SDATA, DATA_PLT, PLT_BEFORE_GOT): Define. * scripttempl/elf.sc: Handle DATA_SDATA and DATA_GOT/DATA_PLT/ PLT_BEFORE_GOT combination. (DATA_GOT, SDATA_GOT): Don't define if either is already defined. ld/testsuite/ * ld-powerpc/ambiguousv1.d, * ld-powerpc/ambiguousv1b.d, * ld-powerpc/ambiguousv2.d, * ld-powerpc/ambiguousv2b.d, * ld-powerpc/elfv2exe.d, * ld-powerpc/elfv2so.d, * ld-powerpc/tlsexe.r, * ld-powerpc/tlsexetoc.r, * ld-powerpc/tlsso.r, * ld-powerpc/tlstocso.r: Update.
2015-01-20Reorder powerpc64 sections for -z relroAlan Modra1-0/+6
More sections can be read-only after relocation. .opd is an obvious candidate. * emulparams/elf64ppc.sh (OTHER_READWRITE_SECTIONS): Move .opd to.. (OTHER_RELRO_SECTIONS_2): ..here, new define. * scripttempl/elf.sc: Add OTHER_RELRO_SECTIONS_2.
2015-01-19Add a testcase for PR ld/17615H.J. Lu1-1/+1
PR ld/17615 * ld-elf/pr17615.d: New file. * ld-elf/pr17615.s: Likewise.
2015-01-19Fix garbage collection of common symbolsAlan Modra1-0/+5
Running lang_common before garbage collection means slightly less work in garbage collection code, since common symbols should no longer appear there. It does have the side effect of keeping linker script symbols (at least those defined outside of sections) global too, hence some testsuite churn. bfd/ PR 17165 * elf-bfd.h (ELF_COMMON_DEF): Note that this might be true for linker script assignments too. * elflink.c (elf_gc_sweep_symbol): Don't drop ELF_COMMON_DEF syms. (bfd_elf_gc_mark_dynamic_ref_symbol): Similarly. ld/ PR 17165 * ldlang.c (lang_process): Run lang_common before lang_gc_sections. ld/testsuite/ * ld-gc/pr14265.d, * ld-cris/tls-gc-68.d, * ld-cris/tls-gc-69.d, * ld-cris/tls-gc-70.d, * ld-cris/tls-gc-71.d, * ld-cris/tls-gc-75.d, * ld-cris/tls-gc-76.d, * ld-cris/tls-gc-79.d, * ld-mmix/bpo-10.d, * ld-mmix/bpo-11.d: Update.
2015-01-14[ARM] Reject R_ARM_REL32 when trying to defer it to runtimeJiong Wang1-0/+16
bfd/ * elf32-arm.c (elf32_arm_final_link_relocate): Reject R_ARM_32/_NOI when trying to defer them to runtime. ld/testsuite/ * ld-arm/elf32-reject.s: New testcase. * ld-arm/elf32-reject.d: Likewise. * ld-arm/elf32-reject-pie.s: Likewise. * ld-arm/elf32-reject-pie.d: Likewise. * ld-arm/arm-elf.exp: Run new testcases. * ld-arm/ifunc-7.s: Delete f2/f4 test items. * ld-arm/ifunc-7.rd: Likewise. * ld-arm/ifunc-7.gd: Likewise. * ld-arm/ifunc-7.dd: Likewise. * ld-arm/ifunc-8.s: Likewise. * ld-arm/ifunc-8.rd: Likewise. * ld-arm/ifunc-8.gd: Likewise. * ld-arm/ifunc-8.dd: Likewise.
2015-01-02Correct printed year in copyright noticesAlan Modra1-0/+4
2015-01-02ChangeLog rotatation and copyright year updateAlan Modra1-1100/+4
2014-12-24Don't create .eh_frame_hdr on shared lib bfdAlan Modra1-0/+6
If no object files have .eh_frame, but some shared library does, then ld creates a .eh_frame_hdr section using the shared library bfd. This is silly since shared library .eh_frame sections don't contribute to the output .eh_frame and thus no .eh_frame_hdr is needed. Also, the bfd section list and count is cleared for shared libraries, and a zero section count used as a flag in lang_check to omit a call to bfd_merge_private_bfd_data for shared libraries. If we create a section on a shared lib bfd then ld will wrongly attempt to merge the shared library private bfd data. PR 17742 * ld/emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Exclude shared libraries in loop looking for .eh_frame sections. Similarly for build-id loop.
2014-12-23AVR/ld: Propagate link-relax elf header flag correctly.Andrew Burgess1-0/+6
The AVR target has an elf header flag to indicate if an object was assembler ready for linker relaxation. If a partial link is performed then it is important that the link-relax flag in the output object is set correctly, otherwise, during the final link, we might try to perform linker relaxation on code that was not assembled suitably. As the link-relax elf header covers the entire object file we must be conservative when setting the flag in the output object, so, for a partial link, any input object that does not have the link-relax flag set will cause the output object to also not have the link-relax flag set. This conservative approach could be softened in future, we only need to disable the link relax flag if an input file is not marked link-relax ready, and the input file contains a relaxable section. However, I've left this optimisation for a later day. For the final link I've overloaded the use of the link-relax elf header flag, in a final executable, the flag now indicates if the executable was built with linker relaxation on or not. ld/ChangeLog: * emultempl/avrelf.em: Add include of elf/avr.h. (avr_finish): New function. (LDEMUL_FINISH): Added. ld/testsuite/ChangeLog: * ld-avr/relax-elf-flags-01.d: New file. * ld-avr/relax-elf-flags-02.d: New file. * ld-avr/relax-elf-flags-03.d: New file. * ld-avr/relax-elf-flags-04.d: New file. * ld-avr/relax-elf-flags-05.d: New file. * ld-avr/relax-elf-flags-06.d: New file. * ld-avr/relax-elf-flags-07.d: New file. * ld-avr/relax-elf-flags-08.d: New file. * ld-avr/relax-elf-flags-a.s: New file. * ld-avr/relax-elf-flags-b.s: New file.
2014-12-23Report an error for script multiply defined symbolsAlan Modra1-0/+7
or maybe not just yet, but this is better than a FIXME. * ldexp.c (update_definedness): Return false if script symbol is redefining a strong symbol in an object. (exp_fold_tree_1 <etree_assign>): Set up for reporting a multiple definition error, but for now leave disabled.
2014-12-23Use a symbol flag bit to mark linker defined symbolsAlan Modra1-0/+4
Trying to use the SEC_LINKER_CREATED section flag to determine whether a symbol is linker defined fails to work on targets like alpha that define special SEC_COMMON sections. These might contain symbols that originated in an object file. include/ * bfdlink.h (struct bfd_link_hash_entry): Comment non_ir_ref. Add linker_def. bfd/ * elflink.c (_bfd_elf_define_linkage_sym): Set linker_def. * linker.c (_bfd_generic_link_add_one_symbol): Clear linker_def for CDEF, DEF, DEFW, COM. ld/ * ldexp.c (exp_fold_tree_1 <etree_provide>): Test linker_def. ld/testsuite/ * ld-powerpc/sdabase.s, * ld-powerpc/sdabase.t, * ld-powerpc/sdabase.d: New test. * ld-powerpc/sdabase2.t, * ld-powerpc/sdabase2.d: New test. * ld-powerpc/powerpc.exp: Run them.
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