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2018-08-08Automatic date update in version.inGDB Administrator1-1/+1
2018-08-07PowerPC64 EH info for _notoc linkage stubsAlan Modra2-140/+264
This patch generates EH info for the new _notoc linkage stubs, to support unwinding from asynchronous signal handlers. Unwinding through the __tls_get_addr_opt stub was already supported, but that was just a single stub. With multiple stubs the EH opcodes need to be emitted and sized when iterating over stubs, so this is done when emitting and sizing the stub code. Emitting the CIEs and FDEs is done when sizing the stubs, as we did before in order to have the linker generated FDEs indexed in .eh_frame_hdr. I moved the final tweaks to FDEs from ppc64_elf_finish_dynamic_sections to ppc64_elf_build_stubs simply because it's tidier to be done with them at that point. bfd/ * elf64-ppc.c (struct map_stub): Delete tls_get_addr_opt_bctrl. Add lr_restore, eh_size and eh_base. (eh_advance, eh_advance_size): New functions. (build_tls_get_addr_stub): Emit EH info for stub. (ppc_build_one_stub): Likewise for _notoc stubs. (ppc_size_one_stub): Size EH info for stub. (group_sections): Init new map_stub fields. (stub_eh_frame_size): Delete. (ppc64_elf_size_stubs): Size EH info for stubs. Set up dummy EH program for stubs. (ppc64_elf_build_stubs): Reinit new map_stub fields. Set FDE offset to stub section here.. (ppc64_elf_finish_dynamic_sections): ..rather than here. ld/ * testsuite/ld-powerpc/notoc.s: Generate some cfi. * testsuite/ld-powerpc/notoc.d: Adjust. * testsuite/ld-powerpc/notoc.wf: New file. * testsuite/ld-powerpc/powerpc.exp: Run "ext" and "notoc" tests as run_ld_link_tests rather than run_dump_test.
2018-08-07__tls_get_addr_opt stubs and tocsave optimizationAlan Modra2-6/+15
This patch fixes a bug in the handling of the __tls_get_addr_opt stub. Calls via this stub don't have a toc restoring instruction following the "bl", and the stub itself doesn't have an initial toc save instruction. Thus it is incorrect to skip over the first instruction when a __tls_get_addr call is marked with a tocsave reloc. * elf64-ppc.c (ppc64_elf_relocate_section): Don't skip first instruction of __tls_get_addr_opt stub. (plt_stub_size): Omit ALWAYS_EMIT_R2SAVE condition when dealing with __tls_get_addr_opt stub. (build_tls_get_addr_stub, ppc_size_one_stub): Likewise.
2018-08-07Automatic date update in version.inGDB Administrator1-1/+1
2018-08-06[ARC] Update warning reporting.Claudiu Zissulescu2-7/+17
MWDT compiler doesn't use eflags and makes use of 0x0c section. For those, silence the gnu warning system. bfd/ Claudiu Zissulescu <claziss@synopsys.com> * elf32-arc.c (arc_elf_merge_private_bfd_data): Complain about efalgs only when in/out exists. (elf32_arc_section_from_shdr): Don't complain about 0x0c section type. It is mwdt compiler specific.
2018-08-06[ARC] Update merging attributes.claziss2-3/+15
Some attributes were ignored during merging. Fix that, and add some errors. bfd/ 2017-09-19 Claudiu Zissulescu <claziss@synopsys.com> * elf32-arc.c (arc_elf_merge_attributes): Fix merge attributes. ld/ 2017-09-19 Claudiu Zissulescu <claziss@synopsys.com> * testsuite/ld-arc/attr-merge-6.d: New file. * testsuite/ld-arc/attr-merge-6a.s: Likewise. * testsuite/ld-arc/attr-merge-6b.s: Likewise. * testsuite/ld-arc/attr-merge-6bis.d: Likewise.
2018-08-06[ARC] Add Tag_ARC_ATR_version.claziss2-0/+11
Add a new tag (Tag_ARC_ATR_version) used to indicate if current attributes are interpreted in GNU way. This attribute is used by Synopsys custom compiler to correctly identify and interpret the object attributes section as generated by GNU tools. gas/ 2017-08-02 Claudiu Zissulescu <claziss@synopsys.com> * config/tc-arc.c (arc_set_public_attributes): Add Tag_ARC_ATR_version. (arc_convert_symbolic_attribute): Likewise. * testsuite/gas/arc/attr-arc600.d: Update test. * testsuite/gas/arc/attr-arc600_mul32x16.d: Likewise. * testsuite/gas/arc/attr-arc600_norm.d: Likewise. * testsuite/gas/arc/attr-arc601.d: Likewise. * testsuite/gas/arc/attr-arc601_mul32x16.d: Likewise. * testsuite/gas/arc/attr-arc601_mul64.d: Likewise. * testsuite/gas/arc/attr-arc601_norm.d: Likewise. * testsuite/gas/arc/attr-arc700.d: Likewise. * testsuite/gas/arc/attr-arcem.d: Likewise. * testsuite/gas/arc/attr-archs.d: Likewise. * testsuite/gas/arc/attr-autodetect-1.d: Likewise. * testsuite/gas/arc/attr-cpu-a601.d: Likewise. * testsuite/gas/arc/attr-cpu-a700.d: Likewise. * testsuite/gas/arc/attr-cpu-em.d: Likewise. * testsuite/gas/arc/attr-cpu-hs.d: Likewise. * testsuite/gas/arc/attr-em.d: Likewise. * testsuite/gas/arc/attr-em4.d: Likewise. * testsuite/gas/arc/attr-em4_dmips.d: Likewise. * testsuite/gas/arc/attr-em4_fpuda.d: Likewise. * testsuite/gas/arc/attr-em4_fpus.d: Likewise. * testsuite/gas/arc/attr-hs.d: Likewise. * testsuite/gas/arc/attr-hs34.d: Likewise. * testsuite/gas/arc/attr-hs38.d: Likewise. * testsuite/gas/arc/attr-hs38_linux.d: Likewise. * testsuite/gas/arc/attr-mul64.d: Likewise. * testsuite/gas/arc/attr-name.d: Likewise. * testsuite/gas/arc/attr-nps400.d: Likewise. * testsuite/gas/arc/attr-override-mcpu.d: Likewise. * testsuite/gas/arc/attr-quarkse_em.d: Likewise. bfd/ 2017-08-02 Claudiu Zissulescu <claziss@synopsys.com> * elf32-arc.c (arc_elf_merge_attributes): Handle Tag_ARC_ATR_version. binutils/ 2017-08-02 Claudiu Zissulescu <claziss@synopsys.com> * readelf.c (display_arc_attribute): Print Tag_ARC_ATR_version. include/ 2017-08-02 Claudiu Zissulescu <claziss@synopsys.com> * elf/arc.h (Tag_ARC_ATR_version): New tag. ld/ 2017-08-02 Claudiu Zissulescu <claziss@synopsys.com> * testsuite/ld-arc/attr-merge-0.d: Update test. * testsuite/ld-arc/attr-merge-1.d: Likewise. * testsuite/ld-arc/attr-merge-2.d: Likewise. * testsuite/ld-arc/attr-merge-3.d: Likewise. * testsuite/ld-arc/attr-merge-5.d: Likewise.
2018-08-06Automatic date update in version.inGDB Administrator1-1/+1
2018-08-05R_PPC64_REL24_NOTOC supportAlan Modra5-117/+599
R_PPC64_REL24_NOTOC is used on calls like "bl foo@notoc" to tell the linker that linkage stubs for PLT calls or long branches can't use r2 for pic addressing. Instead, new stubs that generate pc-relative addresses are used. One complication is that pc-relative offsets to the PLT may need to be 64-bit in large programs, in contrast to the toc-relative addressing used by older PLT linkage stubs where a 32-bit offset is sufficient until the PLT itself exceeds 2G in size. .eh_frame info to cover the _notoc stubs is yet to be implemented. bfd/ * elf64-ppc.c (ADDI_R12_R11, ADDI_R12_R12, LIS_R12), (ADDIS_R12_R11, ORIS_R12_R12_0, ORI_R12_R12_0), (SLDI_R12_R12_32, LDX_R12_R11_R12, ADD_R12_R11_R12): Define. (ppc64_elf_howto_raw): Add R_PPC64_REL24_NOTOC entry. (ppc64_elf_reloc_type_lookup): Support R_PPC64_REL24_NOTOC. (ppc_stub_type): Add ppc_stub_long_branch_notoc, ppc_stub_long_branch_both, ppc_stub_plt_branch_notoc, ppc_stub_plt_branch_both, ppc_stub_plt_call_notoc, and ppc_stub_plt_call_both. (is_branch_reloc): Add R_PPC64_REL24_NOTOC. (build_offset, size_offset): New functions. (plt_stub_size): Support plt_call_notoc and plt_call_both. (ppc_build_one_stub, ppc_size_one_stub): Support new stubs. (toc_adjusting_stub_needed): Handle R_PPC64_REL24_NOTOC. (ppc64_elf_size_stubs): Likewise, and new stubs. (ppc64_elf_build_stubs, ppc64_elf_relocate_section): Likewise. * reloc.c: Add BFD_RELOC_PPC64_REL24_NOTOC. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. gas/ * config/tc-ppc.c (ppc_elf_suffix): Support @notoc. (ppc_force_relocation, ppc_fix_adjustable): Handle REL24_NOTOC. ld/ * testsuite/ld-powerpc/ext.d, * testsuite/ld-powerpc/ext.s, * testsuite/ld-powerpc/ext.lnk, * testsuite/ld-powerpc/notoc.d, * testsuite/ld-powerpc/notoc.s: New tests. * testsuite/ld-powerpc/powerpc.exp: Run them.
2018-08-05Lose _r2off in powerpc64 stub namesAlan Modra2-2/+6
Not a lot is conveyed by putting _r2off in a stub symbol that can't be seen by inspecting the stub code or the toc restoring instruction immediately after a call via such a stub. Also, we don't distinguish plt_call stub symbols from plt_call_r2save stub symbols, so this patch makes long branch and plt branch stub symbols consistent with that decision. bfd/ * elf64-ppc.c (ppc_build_one_stub): Lose "_r2off" in stub symbols. ld/ * testsuite/ld-powerpc/elfv2exe.d: Adjust for stub symbol change. * testsuite/ld-powerpc/tocopt6.d: Likewise.
2018-08-05Automatic date update in version.inGDB Administrator1-1/+1
2018-08-04Automatic date update in version.inGDB Administrator1-1/+1
2018-08-03Automatic date update in version.inGDB Administrator1-1/+1
2018-08-02RISC-V: Fix TLS and --gc-sections conflict.Jim Wilson2-1/+7
bfd/ * elfnn-riscv.c (riscv_elf_create_dynamic_sections): For .tdata.dyn, add SEC_LINKER_CREATED flag.
2018-08-02Automatic date update in version.inGDB Administrator1-1/+1
2018-08-01Suppress compile time warning message when compiling coff-rs6000.c with gcc v8.Nick Clifton2-0/+24
* coff-rs6000.c (_bfd_xcoff_put_ldsymbol_name): Suppress warnings about potentially truncated strncpy operations. (_bfd_xcoff_put_symbol_name): Likewise.
2018-08-01Fix potential illegal memory access in AVR backend.Nick Clifton2-4/+9
* elf32-avr.c (avr_stub_name): Check for a NULL return from bfd_malloc.
2018-08-01Close resource leaks in the BFD library's plugin handler.Nick Clifton2-7/+30
PR 23460 * plugin.c (bfd_plugin_open_input): Close file descriptor if the call to fstat fails. (try_claim): Always close the file descriptor at the end of the function. (try_load_plugin): If a plugin has already been registered, then skip the dlopen and onload steps and go straight to claiming the file. If these is an error, close the plugin.
2018-08-01PowerPC64 __tls_get_addr_opt stub .eh_frame fixAlan Modra2-61/+74
This patch sets stub_offset in ppc_size_one_stub rather than in ppc_build_one_stub. That allows the plt stub alignment to be done in just ppc_size_one_stub rather than both functions. The patch also corrects the place where the alignment was done, fixing a possible error in .eh_frame data, and tidies some offset calculations. bfd/ * elf64-ppc.c (plt_stub_pad): Delay plt_stub_size call until needed. (ppc_build_one_stub): Don't set stub_offset, instead assert that it is sane. Don't adjust stub_offset for alignment. Adjust size calculation. Use "targ" temp when calculating offsets. (ppc_size_one_stub): Set stub_offset here. Use "targ" temp when calculating offsets. Adjust for alignment before setting tls_get_addr_opt_bctrl. ld/ * testsuite/ld-powerpc/powerpc.exp: Run tlsopt5 with plt alignment. * testsuite/ld-powerpc/tlsopt5.s: Add extra call. * testsuite/ld-powerpc/tlsopt5.wf: Adjust expected output. * testsuite/ld-powerpc/tlsopt5.d: Likewise.
2018-08-01csky regenAlan Modra2-0/+6
bfd/ * po/SRC-POTFILES.in: Regenerate. gas/ * po/POTFILES.in: Regenerate. ld/ * po/BLD-POTFILES.in: Regenerate. opcodes/ * po/POTFILES.in: Regenerate.
2018-08-01Automatic date update in version.inGDB Administrator1-1/+1
2018-07-31Automatic date update in version.inGDB Administrator1-1/+1
2018-07-30Prevent a seg-fault in the linker when trying to process SH object files ↵Nick Clifton2-17/+112
with bogus relocs. PR 22706 * elf32-sh.c (sh_elf_relocate_section): When processing translation relocs, fail if the relocation offset is too small. Replace BFD_ASSERTs with more helpful error messages.
2018-07-30Add support for the C_SKY series of processors.Andrew Jenner15-0/+5616
This patch series is a new binutils port for C-SKY processors, including support for both the V1 and V2 processor variants. V1 is derived from the MCore architecture while V2 is substantially different, with mixed 16- and 32-bit instructions, a larger register set, a different (but overlapping) ABI, etc. There is support for bare-metal ELF targets and Linux with both glibc and uClibc. This code is being contributed jointly by C-SKY Microsystems and Mentor Graphics. C-SKY is responsible for the technical content and has proposed Lifang Xia and Yunhai Shang as port maintainers. (Note that C-SKY does have a corporate copyright assignment on file with the FSF.) Mentor Graphics' role has been cleaning up the code, adding documentation and additional test cases, etc, to address issues we anticipated reviewers would complain about. bfd * Makefile.am (ALL_MACHINES, ALL_MACHINES_CFILES): Add C-SKY. (BFD32_BACKENDS, BFD_BACKENDS_CFILES): Likewise. * Makefile.in: Regenerated. * archures.c (enum bfd_architecture): Add bfd_arch_csky and related bfd_mach defines. (bfd_csky_arch): Declare. (bfd_archures_list): Add C-SKY. * bfd-in.h (elf32_csky_build_stubs): Declare. (elf32_csky_size_stubs): Declare. (elf32_csky_next_input_section: Declare. (elf32_csky_setup_section_lists): Declare. * bfd-in2.h: Regenerated. * config.bfd: Add C-SKY. * configure.ac: Likewise. * configure: Regenerated. * cpu-csky.c: New file. * elf-bfd.h (enum elf_target_id): Add C-SKY. * elf32-csky.c: New file. * libbfd.h: Regenerated. * reloc.c: Add C-SKY relocations. * targets.c (csky_elf32_be_vec, csky_elf32_le_vec): Declare. (_bfd_target_vector): Add C-SKY target vector entries. binutils* readelf.c: Include elf/csky.h. (guess_is_rela): Handle EM_CSKY. (dump_relocations): Likewise. (get_machine_name): Likewise. (is_32bit_abs_reloc): Likewise. include * dis-asm.h (csky_symbol_is_valid): Declare. * opcode/csky.h: New file. opcodes * Makefile.am (TARGET_LIBOPCODES_CFILES): Add csky-dis.c. * Makefile.in: Regenerated. * configure.ac: Add C-SKY. * configure: Regenerated. * csky-dis.c: New file. * csky-opc.h: New file. * disassemble.c (ARCH_csky): Define. (disassembler, disassemble_init_for_target): Add case for ARCH_csky. * disassemble.h (print_insn_csky, csky_get_disassembler): Declare. gas * Makefile.am (TARGET_CPU_CFILES): Add entry for C-SKY. (TARGET_CPU_HFILES, TARGET_ENV_HFILES): Likewise. * Makefile.in: Regenerated. * config/tc-csky.c: New file. * config/tc-csky.h: New file. * config/te-csky_abiv1.h: New file. * config/te-csky_abiv1_linux.h: New file. * config/te-csky_abiv2.h: New file. * config/te-csky_abiv2_linux.h: New file. * configure.tgt: Add C-SKY. * doc/Makefile.am (CPU_DOCS): Add entry for C-SKY. * doc/Makefile.in: Regenerated. * doc/all.texi: Set CSKY feature. * doc/as.texi (Overview): Add C-SKY options. (Machine Dependencies): Likewise. * doc/c-csky.texi: New file. * testsuite/gas/csky/*: New test cases. ld * Makefile.am (ALL_EMULATION_SOURCES): Add C-SKY emulations. (ecskyelf.c, ecskyelf_linux.c): New rules. * Makefile.in: Regenerated. * configure.tgt: Add C-SKY. * emulparams/cskyelf.sh: New file. * emulparams/cskyelf_linux.sh: New file. * emultempl/cskyelf.em: New file. * gen-doc.texi: Add C-SKY. * ld.texi: Likewise. (Options specific to C-SKY targets): New section. * testsuite/ld-csky/*: New tests.
2018-07-30Automatic date update in version.inGDB Administrator1-1/+1
2018-07-29Automatic date update in version.inGDB Administrator1-1/+1
2018-07-28Automatic date update in version.inGDB Administrator1-1/+1
2018-07-27S12Z: Remove ELF_TARGET_ID macroJohn Darrington2-1/+4
* elf32-s12z.c (ELF_TARGET_ID): Don't define.
2018-07-27Add functions and macros to read and write 24 bit values.John Darrington3-2/+57
* libbfd.c (bfd_getb24, bfd_getl24): New functions. (bfd_get_24, bfd_put_24): New macros. * bfd-in2.h: Regenerate.
2018-07-27S12Z: Remove inappropriate comment.John Darrington2-1/+5
* elf32-s12z.c (s12z_elf_set_mach_from_flags): Remove comment.
2018-07-27Automatic date update in version.inGDB Administrator1-1/+1
2018-07-26Implement PowerPC64 .localentry for value 1Alan Modra2-6/+14
This adds support for ".localentry 1", a new st_other STO_PPC64_LOCAL_MASK encoding that signifies a function with a single entry point like ".localentry 0", but unlike a ".localentry 0" function does not preserve r2. include/ * elf/ppc64.h: Specify byte offset to local entry for values of two to six in STO_PPC64_LOCAL_MASK. Clarify r2 return value for such functions when entering via global entry point. Specify meaning of a value of one in STO_PPC64_LOCAL_MASK. bfd/ * elf64-ppc.c (ppc64_elf_size_stubs): Use a ppc_stub_long_branch_r2off for calls to symbols with STO_PPC64_LOCAL_MASK bits set to 1. gas/ * config/tc-ppc.c (ppc_elf_localentry): Allow .localentry values of 1 and 7 to directly set value into STO_PPC64_LOCAL_MASK bits. ld/testsuite/ * ld-powerpc/elfv2.s: Add .localentry f5,1 testcase. * ld-powerpc/elfv2exe.d: Update. * ld-powerpc/elfv2so.d: Update.
2018-07-26Automatic date update in version.inGDB Administrator1-1/+1
2018-07-25Enhance powerpc ld -r --relaxAlan Modra2-6/+34
One of the ill effects of ld -r is to mash together sections. That can result in reduced icache performance at runtime due to unexpected movement of code. Another problem is that sections can become too large to link on targets that have limited relative addressing. ld -r --relax attempts to overcome the large section problem for branches by inserting trampolines, but the powerpc support added lots of unnecessary trampolines. This patch trims them somewhat. bfd/ * elf32-ppc.c (ppc_elf_relax_section): Ignore common or undef locals. Avoid trashing toff with added when used as a symbol index. Ignore R_PPC_PLTREL24 addends in unused example code. Avoid creating unnecessary fixups when relocatable. ld/ * testsuite/ld-powerpc/big.s: New file. * testsuite/ld-powerpc/relaxrl.d: New test. * testsuite/ld-powerpc/powerpc.exp: Run new test. * testsuite/ld-powerpc/relaxr.d: Adjust.
2018-07-25Suppress string diagnostics for pre-release GCCAlan Modra7-14/+24
Extends commit 898ade12ee8 to cover other targets. * elf32-arm.c (elf32_arm_nabi_write_core_note): Disable -Wstringop-truncation warning for gcc-8.0 too. * elf32-ppc.c (ppc_elf_write_core_note): Likewise. * elf64-ppc.c (ppc64_elf_write_core_note): Likewise. * elfxx-aarch64.c (_bfd_aarch64_elf_write_core_note): Likewise. * elf32-s390.c (elf_s390_write_core_note): Comment fix. * elf64-s390.c (elf_s390_write_core_note): Likewise.
2018-07-25Automatic date update in version.inGDB Administrator1-1/+1
2018-07-24PR23430, Indices misspelledAlan Modra3-3/+9
PR 23430 include/ * elf/common.h (SHT_SYMTAB_SHNDX): Fix comment typo. bfd/ * dwarf2.c (dwarf_debug_section_enum): Fix comment typo. * elf.c (bfd_section_from_shdr, elf_sort_sections): Likewise. binutils/ * elfcomm.h (struct archive_info): Rename uses_64bit_indicies to uses_64bit_indices. * elfcomm.c (setup_archive): Update uses of above. * readelf.c (process_archive): Likewise. (get_section_type_name): Rename indicies to indices. (get_32bit_elf_symbols, get_64bit_elf_symbols): Likewise. (process_section_groups): Likewise. cpu/ * or1kcommon.cpu (spr-reg-indices): Fix description typo. opcodes/ * or1k-desc.h: Regenerate.
2018-07-24Automatic date update in version.inGDB Administrator1-1/+1
2018-07-23xtensa: move dynamic relocations sections consistency checkMax Filippov2-11/+18
The function elf_xtensa_finish_dynamic_sections checks that sizes of sections .rela.dyn and .rela.plt match number of corresponding relocation records, but the check is only done when .rela.plt is non-empty, so, e.g. it is never run for the static PIE. Rearrange the test so that .rela.dyn and .rela.plt are checked always. bfd/ 2018-07-23 Max Filippov <jcmvbkbc@gmail.com> * elf32-xtensa.c (elf_xtensa_finish_dynamic_sections): Move relocation sections consistency check to always check both .rela.dyn and .rela.plt when they exist. Rearrange variable definition and assignment places.
2018-07-23xtensa: fix relaxation of undefined weak references in shared objectsMax Filippov2-1/+8
The change c451bb34ae8b ("xtensa: don't emit dynamic relocation for weak undefined symbol") didn't properly handle shrinking of relocation sections due to coalescing of references to a dynamic undefined weak symbol in a shared object, which resulted in the following assertion failure in ld when linking uClibc-ng libthread_db for xtensa: BFD (GNU Binutils) 2.31 internal error, aborting at elf32-xtensa.c:3269 in elf_xtensa_finish_dynamic_sections Shrink dynamic relocations section for dynamic undefined weak symbols when linking a shared object. bfd/ 2018-07-23 Max Filippov <jcmvbkbc@gmail.com> * elf32-xtensa.c (shrink_dynamic_reloc_sections): Shrink dynamic relocations section for dynamic undefined weak symbols when linking a shared object.
2018-07-23Avoid ubsan complaint in BFDTom Tromey2-2/+7
I built gdb with ubsan and ran the test suite. One complaint was due to bfd_get_elf_phdrs passing NULL to memcpy. This patch avoids the complaint. bfd/ChangeLog 2018-07-23 Tom Tromey <tom@tromey.com> * elf.c (bfd_get_elf_phdrs): Don't call memcpy with size 0.
2018-07-23S/390: Suppress string diagnostics for pre-release GCCAndreas Krebbel2-4/+4
Building for S/390 currently fails when using a GCC 8.1 pre-release version like 8.0.1 (as it is used by F28). Fixed with the attached patch. bfd/ChangeLog: 2018-07-23 Andreas Krebbel <krebbel@linux.ibm.com> * elf32-s390.c (elf_s390_write_core_note): Make GCC version 8.0 to be covered by the check as well. * elf64-s390.c (elf_s390_write_core_note): Likewise.
2018-07-23Automatic date update in version.inGDB Administrator1-1/+1
2018-07-22Automatic date update in version.inGDB Administrator1-1/+1
2018-07-21Initialize GOT slot for local symbol in non-PIC link.Eric Botcazou2-28/+45
On ARM/VxWorks 7, the R_ARM_TARGET2 relocation used for exception handling is R_ARM_GOT_PREL; moreover in Ada you can define local exceptions. In this case, you may end up with a GOT relocation against a local symbol in a non-PIC link and the ARM linker leaves the GOT slot uninitialized, unlike for example the i386 or the SPARC linkers in the same situation. bfd/ * elf32-arm.c (elf32_arm_final_link_relocate) <R_ARM_GOT32>: Small cleanup for the case of a global symbol that binds locally. Also install a value in the GOT slot in the case of a local symbol in a non-PIC link.
2018-07-21Automatic date update in version.inGDB Administrator1-1/+1
2018-07-20x86: Add a GNU_PROPERTY_X86_ISA_1_USED note if neededH.J. Lu2-15/+53
When -z separate-code, which is enabled by default for Linux/x86, is used to create executable, ld won't place any data in the code-only PT_LOAD segment. If there are no data sections placed before the code-only PT_LOAD segment, the program headers won't be mapped into any PT_LOAD segment. When the executable tries to access it (based on the program header address passed in AT_PHDR), it will lead to segfault. This patch inserts a GNU_PROPERTY_X86_ISA_1_USED note if there may be no data sections before the text section so that the first PT_LOAD segment won't be code-only and will contain the program header. Testcases are adjusted to either pass "-z noseparate-code" to ld or discard the .note.gnu.property section. A Linux/x86 run-time test is added. bfd/ PR ld/23428 * elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): If the separate code program header is needed, make sure that the first read-only PT_LOAD segment has no code by adding a GNU_PROPERTY_X86_ISA_1_USED note. ld/ PR ld/23428 * testsuite/ld-elf/linux-x86.S: New file. * testsuite/ld-elf/linux-x86.exp: Likewise. * testsuite/ld-elf/pr23428.c: Likewise. * testsuite/ld-elf/sec64k.exp: Pass "-z noseparate-code" to ld for Linux/x86 targets. * testsuite/ld-i386/abs-iamcu.d: Likewise. * testsuite/ld-i386/abs.d: Likewise. * testsuite/ld-i386/pr12718.d: Likewise. * testsuite/ld-i386/pr12921.d: Likewise. * testsuite/ld-x86-64/abs-k1om.d: Likewise. * testsuite/ld-x86-64/abs-l1om.d: Likewise. * testsuite/ld-x86-64/abs.d: Likewise. * testsuite/ld-x86-64/pr12718.d: Likewise. * testsuite/ld-x86-64/pr12921.d: Likewise. * testsuite/ld-linkonce/zeroeh.ld: Discard .note.gnu.property section. * testsuite/ld-scripts/print-memory-usage.t: Likewise. * testsuite/ld-scripts/size-2.t: Likewise. * testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Use ld to create executable if language is "asm".
2018-07-20MIPS/GAS: Split Loongson MMI Instructions from loongson2f/3aChenghua Xu2-0/+7
The MMI instruction set has been implemented in many Loongson processors. There is a lot of software optimized for MMI. This patch splits MMI from loongson2f/3a, and adds GAS and disassembler options for MMI instructions. 2018-07-20 Chenghua Xu <paul.hua.gm@gmail.com> Maciej W. Rozycki <macro@mips.com> bfd/ * elfxx-mips.c (print_mips_ases): Add MMI extension. binutils/ * readelf.c (print_mips_ases): Add MMI extension. gas/ * NEWS: Mention MultiMedia extensions Instructions (MMI) support. * config/tc-mips.c (options): Add OPTION_LOONGSON_MMI and OPTION_NO_LOONGSON_MMI. (md_longopts): Likewise. (mips_ases): Define availability for MMI. (mips_convert_ase_flags): Map ASE_LOONGSON_MMI to AFL_ASE_LOONGSON_MMI. (mips_cpu_info_table): Add ASE_LOONGSON_MMI for loongson2f/3a. (md_show_usage): Add help for -mloongson-mmi and -mno-loongson-mmi. * doc/as.texi: Document -mloongson-mmi, -mno-loongson-mmi. * doc/c-mips.texi: Document -mloongson-mmi, -mno-loongson-mmi, .set loongson-mmi and .set noloongson-mmi. * testsuite/gas/mips/loongson-2f.d: Move mmi test to ... * testsuite/gas/mips/loongson-2f-mmi.d: Here. Add ISA/ASE flag verification. * testsuite/gas/mips/loongson-2f.s: Move mmi test to ... * testsuite/gas/mips/loongson-2f-mmi.s: Here. * testsuite/gas/mips/loongson-3a.d: Move mmi test to ... * testsuite/gas/mips/loongson-3a-mmi.d: Here. Add ISA/ASE flag verification. * testsuite/gas/mips/loongson-3a.s: Move mmi test to ... * testsuite/gas/mips/loongson-3a-mmi.s: Here. * testsuite/gas/mips/mips.exp: Run loongson-2f-mmi and loongson-3a-mmi tests. include/ * elf/mips.h (AFL_ASE_MMI): New macro. (AFL_ASE_MASK): Update to include AFL_ASE_LOONGSON_MMI. * opcode/mips.h (ASE_LOONGSON_MMI): New macro. opcodes/ * mips-dis.c (mips_arch_choices): Add MMI to loongson2f and loongson3a descriptors. (parse_mips_ase_option): Handle -M loongson-mmi option. (print_mips_disassembler_options): Document -M loongson-mmi. * mips-opc.c (LMMI): New macro. (mips_opcodes): Replace IL2F|IL3A marking with LMMI for MMI instructions.
2018-07-20MIPS/LD: Fix crashing with a discarded dynamic relocation sectionMaciej W. Rozycki2-1/+11
Fix a crash that occurs in `_bfd_mips_elf_finish_dynamic_sections' if a dynamic relocation section has been created, but marked to be discarded by an assignment to the /DISCARD/ output section in a linker script. In that case the output section is the absolute section, which has no ELF section data attached, so trying to set its `sh_size' parameter causes a null pointer dereference. This is only done as the value for the DT_RELSZ dynamic entry is being set, so fix the problem by not creating DT_REL, DT_RELSZ or DT_RELENT dynamic entries in the first place if the dynamic relocation section will not be output, as with no dynamic relocation data present these would not serve their purpose anyway. Add a generic ELF test case to verify that no dynamic relocation data is reported in the dynamic segment. bfd/ * elfxx-mips.c (_bfd_mips_elf_size_dynamic_sections): Do not create DT_REL, DT_RELSZ or DT_RELENT dynamic entries if the dynamic relocation section will be discarded from output. (_bfd_mips_elf_finish_dynamic_sections) <DT_RELSZ>: Assert that the dynamic relocation section will be retained in output. ld/ * testsuite/ld-elf/reloc-discard.d: New test. * testsuite/ld-elf/reloc-discard.ld: New test linker script. * testsuite/ld-elf/reloc-discard.s: New test source.
2018-07-20Automatic date update in version.inGDB Administrator1-1/+1
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