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2017-05-22[AArch64, ld] Support ILP32 triplet aarch64*-linux-gnu_ilp32Jiong Wang2-0/+14
This patch allows AArch64 LD defaulting to ILP32 if it is configured with aarch64*-linux-gnu_ilp32. ld/ * configure.tgt: Set "targ_emul" to "aarch64linux32b" for aarch64_be-*-linux-gnu_ilp32. Set "targ_emul" to "aarch64linux32" for aarch64-*-linux-gnu_ilp32.
2017-05-19x86: Add GC testcases with property sectionsH.J. Lu11-0/+108
Verify that debug section is removed by garbage collection when there is a .note.gnu.property section. * testsuite/ld-i386/i386.exp: Run property-x86-4a and property-x86-4b. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/property-x86-4a.d: New file. * testsuite/ld-i386/property-x86-4a.s: Likewise. * testsuite/ld-i386/property-x86-4b.d: Likewise. * testsuite/ld-i386/property-x86-4b.s: Likewise. * testsuite/ld-x86-64/property-x86-4a.d: Likewise. * testsuite/ld-x86-64/property-x86-4a.s: Likewise. * testsuite/ld-x86-64/property-x86-4b.d: Likewise. * testsuite/ld-x86-64/property-x86-4b.s: Likewise.
2017-05-19Update avrxmega3 linker emulation to support avrxmega2 devices with flash ↵eorg-Johann Lay3-1/+61
memory visible in the SRAM address range. PR ld/21472 ld * emulparams/avrxmega3.sh (RODATA_PM_OFFSET): Set to 0x8000. * scripttempl/avr.sc (__RODATA_PM_OFFSET__) [RODATA_PM_OFFSET]: Use RODATA_PM_OFFSET as default if not already defined. (.data) [!RODATA_PM_OFFSET]: Don't include .rodata and friends. (.rodata) [RODATA_PM_OFFSET]: Put at an offset of __RODATA_PM_OFFSET__. gas * config/tc-avr.c (mcu_types): Add entries for: attiny416, attiny417, attiny816, attiny817.
2017-05-18Treat a prefix of "$SYSROOT" in the same way as "=" when parsing linker ↵Nick Clifton6-8/+40
search paths. PR ld/21251 * ldfile.c (ldfile_add_library_path): If the path starts with $SYSROOT then use the sysroot as the real prefix. * ldlang.c (lang_add_input_file): Treat $SYSROOT in the same way as =. * ldlex.l: Add $SYSROOT as allow prefix for a filename. * ld.texinfo (-L): Document that $SYSROOT acts like = when prefixing a library search path. (INPUT): Likewise. * testsuite/ld-scripts/sysroot-prefix.exp: Add $SYSROOT prefix tests.
2017-05-18fix changelog typoAlan Modra1-1/+2
2017-05-18Don't compare boolean values against TRUE or FALSEAlan Modra5-4/+11
bfd/ * arc-got.h: Don't compare boolean values against TRUE or FALSE. * elf-m10300.c: Likewise. * elf.c: Likewise. * elf32-arc.c: Likewise. * elf32-bfin.c: Likewise. * elf32-m68k.c: Likewise. * elf32-nds32.c: Likewise. * elf32-tilepro.c: Likewise. * elflink.c: Likewise. * elfnn-aarch64.c: Likewise. * elfnn-riscv.c: Likewise. * elfxx-tilegx.c: Likewise. * mach-o.c: Likewise. * peXXigen.c: Likewise. * vms-alpha.c: Likewise. * vms-lib.c: Likewise. opcodes/ * aarch64-asm.c: Don't compare boolean values against TRUE or FALSE. * aarch64-dis.c: Likewise. * aarch64-gen.c: Likewise. * aarch64-opc.c: Likewise. binutils/ * strings.c: Don't compare boolean values against TRUE or FALSE. gas/ * config/tc-aarch64.c: Don't compare booleans against TRUE or FALSE. * config/tc-hppa.c: Likewise. * config/tc-mips.c: Likewise. * config/tc-score7.c: Likewise. ld/ * emultempl/elf32.em: Don't compare boolean values against TRUE or FALSE. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/xtensaelf.em: Likewise.
2017-05-18pr20882 testcaseAlan Modra5-13/+12
-gdwarf-sections doesn't work on targets that lack support to emit address size relative relocs. The testcase as it was avoided -gdwarf-sections doing anything by providing a non-empty .debug_line. It's better to not use -gdwarf-sections. Also, the testcase failed to match the output for 16-bit address targets like avr. PR ld/20882 * testsuite/ld-gc/pr20882.d: Don't pass -gdwarf-sections to gas. Allow for 16-bit address targets and match expected data fully. * testsuite/ld-gc/pr20882a.s: Delete .debug_line section. * testsuite/ld-gc/pr20882b.s: Likewise. * testsuite/ld-gc/pr20882c.s: Likewise.
2017-05-17Mark debug sections referenced by kept debug sectionsH.J. Lu6-0/+47
If a debug section is referenced by a kept debug section, it should also be kept. Some targets, like mips, keep input files when there are some special sections, like .gnu.attributes, even if input file is unused otherwise. In this case, all debug sections are kept. The new test will fail on such targets. We can either fix those targets or XFAIL the test. bfd/ PR ld/20882 * elflink.c (elf_gc_mark_debug_section): New function. (_bfd_elf_gc_mark_extra_sections): Mark any debug sections referenced by kept debug sections. ld/ PR ld/20882 * testsuite/ld-gc/gc.exp: Run pr20882. * testsuite/ld-gc/pr20882.d: New file. * testsuite/ld-gc/pr20882a.s: Likewise. * testsuite/ld-gc/pr20882b.s: Likewise. * testsuite/ld-gc/pr20882c.s: Likewise.
2017-05-16Fix commit 0a7d38897b9fb1ec7a064ca3347cbac3ba49e5acH.J. Lu1-18/+22
2017-05-16Run PR ld/21481 tests only if IFUNC is supportedH.J. Lu2-18/+24
PR ld/21481 * testsuite/ld-x86-64/x86-64.exp: Run PR ld/21481 tests only if IFUNC is supported by run-time.
2017-05-16Rename non_ir_ref to non_ir_ref_regularAlan Modra2-4/+8
Since the flag is now set only for regular object refs. include/ * bfdlink.h (struct bfd_link_hash_entry <non_ir_ref>): Rename to non_ir_ref_regular. bfd/ * elf-m10300.c: Rename occurrences of non_ir_ref. * elf32-arm.c: Likewise. * elf32-bfin.c: Likewise. * elf32-cr16.c: Likewise. * elf32-cris.c: Likewise. * elf32-d10v.c: Likewise. * elf32-dlx.c: Likewise. * elf32-fr30.c: Likewise. * elf32-frv.c: Likewise. * elf32-hppa.c: Likewise. * elf32-i370.c: Likewise. * elf32-i386.c: Likewise. * elf32-iq2000.c: Likewise. * elf32-lm32.c: Likewise. * elf32-m32c.c: Likewise. * elf32-m32r.c: Likewise. * elf32-m68hc1x.c: Likewise. * elf32-m68k.c: Likewise. * elf32-mcore.c: Likewise. * elf32-metag.c: Likewise. * elf32-microblaze.c: Likewise. * elf32-moxie.c: Likewise. * elf32-msp430.c: Likewise. * elf32-mt.c: Likewise. * elf32-nios2.c: Likewise. * elf32-or1k.c: Likewise. * elf32-ppc.c: Likewise. * elf32-rl78.c: Likewise. * elf32-s390.c: Likewise. * elf32-score.c: Likewise. * elf32-score7.c: Likewise. * elf32-sh.c: Likewise. * elf32-tic6x.c: Likewise. * elf32-tilepro.c: Likewise. * elf32-v850.c: Likewise. * elf32-vax.c: Likewise. * elf32-xstormy16.c: Likewise. * elf32-xtensa.c: Likewise. * elf64-alpha.c: Likewise. * elf64-hppa.c: Likewise. * elf64-ia64-vms.c: Likewise. * elf64-mmix.c: Likewise. * elf64-ppc.c: Likewise. * elf64-s390.c: Likewise. * elf64-sh64.c: Likewise. * elf64-x86-64.c: Likewise. * elflink.c: Likewise. * elfnn-aarch64.c: Likewise. * elfnn-ia64.c: Likewise. * elfnn-riscv.c: Likewise. * elfxx-mips.c: Likewise. * elfxx-sparc.c: Likewise. * elfxx-tilegx.c: Likewise. * linker.c: Likewise. ld/ * plugin.c: Rename occurrences of non_ir_ref.
2017-05-16non_ir_ref_dynamicAlan Modra2-30/+41
dynamic_ref_after_ir_def is a little odd compared to other symbol flags in that as the name suggests, it is set only for certain references after a definition. It turns out that setting a flag for any non-ir reference from a dynamic object can be used to solve the problem for which this flag was invented, which I think is a cleaner. This patch does that, and sets non_ir_ref only for regular object references. include/ * bfdlink.h (struct bfd_link_hash_entry): Update non_ir_ref comment. Rename dynamic_ref_after_ir_def to non_ir_ref_dynamic. ld/ * plugin.c (is_visible_from_outside): Use non_ir_ref_dynamic. (plugin_notice): Set non_ir_ref for references from regular objects, non_ir_ref_dynamic for references from dynamic objects. bfd/ * elf64-ppc.c (add_symbol_adjust): Transfer non_ir_ref_dynamic. * elflink.c (elf_link_add_object_symbols): Update to use non_ir_ref_dynamic. (elf_link_input_bfd): Test non_ir_ref_dynamic in addition to non_ir_ref. * linker.c (_bfd_generic_link_add_one_symbol): Likewise.
2017-05-15MIPS16e2: Add new MIPS16e2 relaxation GAS and LD testsMaciej W. Rozycki10-0/+162
Verify MIPS16 PC-relative instruction relaxation using the MIPS16e2 LUI instruction rather than an LI/SLL instruction pair. gas/ * testsuite/gas/mips/mips16-pcrel-1.d: Remove `-mips3' from `as' flags. * testsuite/gas/mips/mips16-pcrel-pic-1.d: Likewise. * testsuite/gas/mips/mips16-pcrel-n32-0.d: Likewise. * testsuite/gas/mips/mips16-pcrel-n32-1.d: Likewise. * testsuite/gas/mips/mips16-pcrel-n64-0.d: Likewise. * testsuite/gas/mips/mips16-pcrel-n64-1.d: Likewise. * testsuite/gas/mips/mips16-pcrel-n64-sym32-0.d: Likewise. * testsuite/gas/mips/mips16-pcrel-n64-sym32-1.d: Likewise. * testsuite/gas/mips/mips16-pcrel-reloc-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-reloc-5.d: Likewise. * testsuite/gas/mips/mips16-pcrel-reloc-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-reloc-7.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-5.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-7.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-9.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-pic-9.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-n32-8.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-n32-9.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-n64-sym32-8.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-n64-sym32-9.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-n64-8.d: Likewise. * testsuite/gas/mips/mips16-pcrel-addend-n64-9.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-2.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-3.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-7.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-n32-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-n32-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-n64-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-n64-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-n64-sym32-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-n64-sym32-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n32-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n32-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-6.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-sym32-4.d: Likewise. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-sym32-6.d: Likewise. * testsuite/gas/mips/mips16e2@mips16-pcrel-0.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-1.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-2.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-n32-0.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-n32-1.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-n64-sym32-0.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-n64-sym32-1.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-delay-0.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-delay-1.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-reloc-2.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-reloc-3.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-reloc-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-reloc-7.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-2.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-3.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-7.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-8.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-9.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-n32-8.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-n32-9.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-n64-sym32-8.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-addend-n64-sym32-9.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-1.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-2.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-3.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-4.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-5.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-7.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-pic-4.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-pic-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-n32-4.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-n32-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-n64-sym32-4.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-n64-sym32-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-pic-n32-4.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-pic-n32-6.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-pic-n64-sym32-4.d: New test. * testsuite/gas/mips/mips16e2@mips16-pcrel-absolute-pic-n64-sym32-6.d: New test. * testsuite/gas/mips/mips16-pcrel-1.l: Adjust line numbers. * testsuite/gas/mips/mips16-pcrel-1.s: Adjust for alignment preservation between MIPS16 and MIPS16e2 code. * testsuite/gas/mips/mips.exp: Run MIPS16 relaxation tests over all MIPS16 architectures. ld/ * testsuite/ld-mips-elf/mips16e2-pcrel-0.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-1.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-addend-2.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-addend-6.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-n32-0.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-n32-1.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-n64-sym32-0.d: New test. * testsuite/ld-mips-elf/mips16e2-pcrel-n64-sym32-1.d: New test. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-05-15Add .debug_gdb_scripts section to PE linker scripts.Nick Clifton3-0/+26
PR ld/21459 * scripttempl/pe.sc: Add .debug_gdb_scripts section. * scripttempl/pep.sc: Likewise.
2017-05-12x86: Merge X86_ISA_1_USED/X86_ISA_1_NEEDED propertiesH.J. Lu7-0/+131
If there are more than GNU property note in an input, we should merge X86_ISA_1_USED and X86_ISA_1_NEEDED properties. bfd/ * elf32-i386.c (elf_i386_parse_gnu_properties): Merge GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED properties. * elf64-x86-64.c (elf_x86_64_parse_gnu_properties): Likewise. ld/ * testsuite/ld-i386/i386.exp: Run property-x86-3. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/property-x86-3.d: New file. * testsuite/ld-i386/property-x86-3.s: Likewise. * testsuite/ld-x86-64/property-x86-3.d: Likewise. * testsuite/ld-x86-64/property-x86-3.s: Likewise.
2017-05-11x86-64: Rename .plt.bnd to .plt.secH.J. Lu16-19/+38
Rename .plt.bnd to .plt.sec to indicate that this is used as the second PLT section. There is no change in run-time behavior. We also scan the .plt.sec section to synthesize PLT symbols. bfd/ * elf64-x86-64.c (elf_x86_64_link_hash_entry): Rename plt_bnd to plt_second. (elf_x86_64_link_hash_table): Rename plt_bnd/plt_bnd_eh_frame to plt_second/plt_second_eh_frame. (elf_x86_64_link_hash_newfunc): Updated. (elf_x86_64_allocate_dynrelocs): Likewise. (elf_x86_64_size_dynamic_sections): Likewise. (elf_x86_64_relocate_section): Likewise. (elf_x86_64_finish_dynamic_symbol): Likewise. (elf_x86_64_finish_dynamic_sections): Likewise. (elf_x86_64_plt_type): Rename plt_bnd to plt_second. (elf_x86_64_get_synthetic_symtab): Updated. Also scan the .plt.sec section. (elf_backend_setup_gnu_properties): Updated. Create the .plt.sec section instead of the .plt.sec section. ld/ * emulparams/elf_x86_64.sh (TINY_READONLY_SECTION): Replace .plt.bnd with .plt.sec. * testsuite/ld-x86-64/bnd-ifunc-1-now.d: Likewise. * testsuite/ld-x86-64/bnd-ifunc-2-now.d: Likewise. * testsuite/ld-x86-64/bnd-ifunc-2.d: Likewise. * testsuite/ld-x86-64/bnd-plt-1-now.d: Likewise. * testsuite/ld-x86-64/bnd-plt-1.d: Likewise. * testsuite/ld-x86-64/mpx3.dd: Likewise. * testsuite/ld-x86-64/mpx3n.dd: Likewise. * testsuite/ld-x86-64/mpx4.dd: Likewise. * testsuite/ld-x86-64/mpx4n.dd: Likewise. * testsuite/ld-x86-64/plt-main-bnd-now.rd: Likewise. * testsuite/ld-x86-64/pr21038b-now.d: Likewise. * testsuite/ld-x86-64/pr21038b.d: Likewise. * testsuite/ld-x86-64/pr21038c-now.d: Likewise. * testsuite/ld-x86-64/pr21038c.d: Likewise.
2017-05-11x86: Generate PLT relocations for -z nowH.J. Lu17-171/+205
This patch partially reverses: commit 25070364b0ce33eed46aa5d78ebebbec6accec7e Author: H.J. Lu <hjl.tools@gmail.com> Date: Sat May 16 07:00:21 2015 -0700 Don't generate PLT relocations for now binding to support LD_AUDIT and LD_PROFILE with -z now. If there is an existing GOT relocation, it is still used to avoid PLT relocation against the same function symbol. bfd/ * elf32-i386.c (elf_i386_allocate_dynrelocs): Partially revert commit 25070364b0ce33eed46aa5d78ebebbec6accec7e. * elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Likewse. ld/ * testsuite/ld-i386/plt-pic2.dd: Updated. * testsuite/ld-i386/plt2.dd: Likewise. * testsuite/ld-i386/plt2.rd: Likewise. * testsuite/ld-i386/pr17689now.rd: Likewise. * testsuite/ld-ifunc/ifunc-16-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-16-x86-64-now.d: Likewise. * testsuite/ld-ifunc/pr17154-i386-now.d: Likewise. * testsuite/ld-ifunc/pr17154-x86-64-now.d: Likewise. * testsuite/ld-x86-64/bnd-branch-1-now.d: Likewise. * testsuite/ld-x86-64/bnd-ifunc-2-now.d: Likewise. * testsuite/ld-x86-64/bnd-plt-1-now.d: Likewise. * testsuite/ld-x86-64/plt2.dd: Likewise. * testsuite/ld-x86-64/plt2.rd: Likewise. * testsuite/ld-x86-64/pr17689now.rd: Likewise. * testsuite/ld-x86-64/pr21038b-now.d: Likewise. * testsuite/ld-x86-64/pr21038c-now.d: Likewise.
2017-05-10i386: Set CHECK_RELOCS_AFTER_OPEN_INPUT to yesH.J. Lu4-0/+11
All linker targets based on elf32-i386 should check relocations after opening all inputs since this is how elf32-i386 works. * emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Set to yes. * emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise.
2017-05-10x86-64: Use .plt.bnd for IFUNC function addressH.J. Lu4-0/+89
When -z bndplt is used, we must use the .plt.bnd entry for IFUNC function address. bfd/ PR ld/21481 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Use .plt.bnd for IFUNC function address. ld/ PR ld/21481 * testsuite/ld-x86-64/pr21481a.c: New file. * testsuite/ld-x86-64/pr21481b.S: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run PR ld/21481 tests.
2017-05-10[ARC] Object attributes.Claudiu Zissulescu23-1/+130
gas/ 2017-05-10 Claudiu Zissulescu <claziss@synopsys.com> * testsuite/gas/arc/attr-arc600.d: New file. * 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-autodetect-1.s: Likewise. * testsuite/gas/arc/attr-cpu-a601.d: Likewise. * testsuite/gas/arc/attr-cpu-a601.s: Likewise. * testsuite/gas/arc/attr-cpu-a700.d: Likewise. * testsuite/gas/arc/attr-cpu-a700.s: Likewise. * testsuite/gas/arc/attr-cpu-em.d: Likewise. * testsuite/gas/arc/attr-cpu-em.s: Likewise. * testsuite/gas/arc/attr-cpu-hs.d: Likewise. * testsuite/gas/arc/attr-cpu-hs.s: 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-name.s: Likewise. * testsuite/gas/arc/attr-nps400.d: Likewise. * testsuite/gas/arc/attr-override-mcpu.d: Likewise. * testsuite/gas/arc/attr-override-mcpu.s * testsuite/gas/arc/attr-quarkse_em.d: Likewise. * testsuite/gas/arc/blank.s: Likewise. * testsuite/gas/elf/section2.e-arc: Likewise. * testsuite/gas/arc/cpu-pseudop-1.d: Update test. * testsuite/gas/arc/cpu-pseudop-2.d: Likewise. * testsuite/gas/arc/nps400-0.d: Likewise. * testsuite/gas/elf/elf.exp: Set target_machine for ARC. * config/tc-arc.c (opcode/arc-attrs.h): Include. (ARC_GET_FLAG, ARC_SET_FLAG, streq): Define. (arc_attribute): Declare new function. (md_pseudo_table): Add arc_attribute. (cpu_types): Rename default cpu features. (selected_cpu): Set the default OSABI flag. (mpy_option): New variable. (pic_option): Likewise. (sda_option): Likewise. (tls_option): Likewise. (feature_type, feature_list): Remove. (arc_initial_eflag): Likewise. (attributes_set_explicitly): New variable. (arc_check_feature): Check also for the conflicting features. (arc_select_cpu): Refactor assignment of selected_cpu.eflags. (arc_option): Remove setting of private flags and architecture. (check_cpu_feature): Refactor feature names. (autodetect_attributes): New function. (assemble_tokens): Use above function. (md_parse_option): Refactor feature names. (arc_attribute): New function. (arc_set_attribute_int): Likewise. (arc_set_attribute_string): Likewise. (arc_stralloc): Likewise. (arc_set_public_attributes): Likewise. (arc_md_end): Likewise. (arc_copy_symbol_attributes): Likewise. (rc_convert_symbolic_attribute): Likewise. * config/tc-arc.h (md_end): Define. (CONVERT_SYMBOLIC_ATTRIBUTE): Likewise. (TC_COPY_SYMBOL_ATTRIBUTES): Likewise. * doc/c-arc.texi: Document ARC object attributes. binutils/ 2017-05-10 Claudiu Zissulescu <claziss@synopsys.com> * readelf.c (decode_ARC_machine_flags): Recognize OSABI v4. (get_arc_section_type_name): New function. (get_section_type_name): Use the above function. (display_arc_attribute): New function. (process_arc_specific): Likewise. (process_arch_specific): Handle ARC specific information. * testsuite/binutils-all/strip-3.d: Consider ARC.attributes section. include/ 2017-05-10 Claudiu Zissulescu <claziss@synopsys.com> * elf/arc.h (SHT_ARC_ATTRIBUTES): Define. (Tag_ARC_*): Define. (E_ARC_OSABI_V4): Define. (E_ARC_OSABI_CURRENT): Reassign it. (TAG_CPU_*): Define. * opcode/arc-attrs.h: New file. * opcode/arc.h (insn_subclass_t): Assign enum values. (insn_subclass_t): Update enum with QUARKSE1, QUARKSE2, and LL64. (ARC_EA, ARC_CD, ARC_LLOCK, ARC_ATOMIC, ARC_MPY, ARC_MULT) (ARC_NPS400, ARC_DPFP, ARC_SPFP, ARC_FPU, ARC_FPUDA, ARC_SWAP) (ARC_NORM, ARC_BSCAN, ARC_UIX, ARC_TSTAMP, ARC_VBFDW) (ARC_BARREL, ARC_DSPA, ARC_SHIFT, ARC_INTR, ARC_DIV, ARC_XMAC) (ARC_CRC): Delete. bfd/ 2017-05-10 Claudiu Zissulescu <claziss@synopsys.com> * elf32-arc.c (FEATURE_LIST_NAME): Define. (CONFLICT_LIST): Likewise. (opcode/arc-attrs.h): Include. (arc_elf_print_private_bfd_data): Print OSABI v4 flag. (arc_extract_features): New file. (arc_stralloc): Likewise. (arc_elf_merge_attributes): Likewise. (arc_elf_merge_private_bfd_data): Use object attributes. (bfd_arc_get_mach_from_attributes): New function. (arc_elf_object_p): Use object attributes. (arc_elf_final_write_processing): Likewise. (elf32_arc_obj_attrs_arg_type): New function. (elf32_arc_obj_attrs_handle_unknown): Likewise. (elf32_arc_section_from_shdr): Likewise. (elf_backend_obj_attrs_vendor): Define. (elf_backend_obj_attrs_section): Likewise. (elf_backend_obj_attrs_arg_type): Likewise. (elf_backend_obj_attrs_section_type): Likewise. (elf_backend_obj_attrs_handle_unknown): Likewise. (elf_backend_section_from_shdr): Likewise. ld/ 2017-05-10 Claudiu Zissulescu <claziss@synopsys.com> * testsuite/ld-arc/attr-merge-0.d: New file. * testsuite/ld-arc/attr-merge-0.s: Likewise. * testsuite/ld-arc/attr-merge-0e.s: Likewise. * testsuite/ld-arc/attr-merge-1.d: Likewise. * testsuite/ld-arc/attr-merge-1.s: Likewise. * testsuite/ld-arc/attr-merge-1e.s: Likewise. * testsuite/ld-arc/attr-merge-2.d: Likewise. * testsuite/ld-arc/attr-merge-2.s: Likewise. * testsuite/ld-arc/attr-merge-3.d: Likewise. * testsuite/ld-arc/attr-merge-3.s: Likewise. * testsuite/ld-arc/attr-merge-3e.s: Likewise. * testsuite/ld-arc/attr-merge-4.s: Likewise. * testsuite/ld-arc/attr-merge-5.d: Likewise. * testsuite/ld-arc/attr-merge-5a.s: Likewise. * testsuite/ld-arc/attr-merge-5b.s: Likewise. * testsuite/ld-arc/attr-merge-conflict-isa.d: Likewise. * testsuite/ld-arc/attr-merge-err-isa.d: Likewise. * testsuite/ld-arc/attr-merge-incompatible-cpu.d: Likewise. * testsuite/ld-arc/got-01.d: Update test. * testsuite/ld-arc/attr-merge-err-quarkse.d: New file. * testsuite/ld-arc/attr-quarkse.s: Likewise. * testsuite/ld-arc/attr-quarkse2.s: Likewise. opcodes/ 2017-05-10 Claudiu Zissulescu <claziss@synopsys.com> * arc-dis.c (parse_option): Update quarkse_em option.. * arc-ext-tbl.h (dsp_fp_flt2i, dsp_fp_i2flt): Change subclass to QUARKSE1. (dsp_fp_div, dsp_fp_cmp): Change subclass to QUARKSE2.
2017-05-09Support pe-bigobj-x86-64 as an output format in 64-bit PE based linkers.Awson2-0/+16
PR ld/21471 * pe-dll.c (pe_detail_list): Add entry for pe-bigobj-x86-64.
2017-05-09ld.texinfo, use "affects" instead of "effects"Alan Modra2-1/+5
* ld.texinfo (orphan sections): Grammar fix.
2017-05-08x86-64: Improve PLT generation and synthetic PLT symbolsH.J. Lu30-91/+948
On x86-64, the procedure linkage table (PLT) is used to 1. Call external function. 2. Call internal IFUNC function. The best implementation is selected for the target processor at run-time. 3. Act as the canonical function address. 4. Support LD_AUDIT to audit external function calls. 5. Support LD_PROFILE to profile external function calls. PLT looks like: PLT0: push GOT[1] jmp *GOT[2] nop PLT1: jmp *GOT[name1_index] push name1_reloc_index jmp PLT0 GOT is an array of addresses. Initially the GOT entry of name1 is filled with the address of the "push name1_reloc_index" instruction. The function, name1, is called via "jmp *GOT[name1]" in the PLT entry. Even when lazy binding is disabled by "-z now", the PLT0 entry may still be used with LD_AUDIT or LD_PROFILE if PLT entry is used for canonical function address. When linker is invoked with "-z bndplt", a different PLT layout in .plt is used: PLT0: push GOT[1] bnd jmp *GOT[2] nop PLT1: push name1_reloc_index bnd jmp PLT0 nop together with a second PLT section, .pl.bnd: PLT1: bnd jmp *GOT[name1_index] nop where the GOT entry of name1 is filled with the address of the push instruction of the corresponding entry in .plt. 1. With lazy binding, when the external function, name1, is called the first time, dynamic linker is called via PLT0 to update GOT[name1_index] with the actual address of name1 and transfers control to name1 afterwards. 2. PLT is also used to call a local IFUNC function, name1, run-time loader updates GOT[name1_index] when loading the module. This patch 1. Remove PLT layout configurations from x86-64 backend_data. 2. Add generic, lay and non-lazy PLT layout configurations to x86-64 link_hash_table. Generic PLT layout includes the PLT entry templates, information how to update the first instruction in PLT and PLT eh_frame informaton, which are initialized in x86-64 setup_gnu_properties, based on "-z bndplt" and target selection. PLT section alignment is also set to PLT entry size for non-NaCl target. 3. Remove elf_x86_64_create_dynamic_sections. create_dynamic_sections isn't always called, but GOT relocations need GOT relocations. Instead, create all x86-64 specific dynamic sections with alignment to their entry size in x86-64 setup_gnu_properties, which initializes elf.dynobj, so that x86-64 check_relocs can be simplified. 4. Rewrite elf_x86_64_get_synthetic_symtab to check PLT sections against all dynamic relocations to support both lazy and non-lazy PLTs. There is no change in PLT. The only externally visible change is the improvement of synthetic PLT symbols for .plt.got. bfd/ * elf64-x86-64.c (PLT_ENTRY_SIZE): Renamed to ... (LAZY_PLT_ENTRY_SIZE): This. (NON_LAZY_PLT_ENTRY_SIZE): New. (elf_x86_64_plt0_entry): Renamed to ... (elf_x86_64_lazy_plt0_entry): This. (elf_x86_64_plt_entry): Renamed to ... (elf_x86_64_lazy_plt_entry): This. (elf_x86_64_bnd_plt0_entry): Renamed to ... (elf_x86_64_lazy_bnd_plt0_entry): This. (elf_x86_64_legacy_plt_entry): Removed. (elf_x86_64_bnd_plt_entry): Renamed to ... (elf_x86_64_lazy_bnd_plt_entry): This. (elf_x86_64_legacy_plt2_entry): Renamed to ... (elf_x86_64_non_lazy_plt_entry): This. (elf_x86_64_bnd_plt2_entry): Renamed to ... (elf_x86_64_non_lazy_bnd_plt_entry): This. (elf_x86_64_eh_frame_plt): Renamed to ... (elf_x86_64_eh_frame_lazy_plt): This. (elf_x86_64_eh_frame_bnd_plt): Renamed to ... (elf_x86_64_eh_frame_lazy_bnd_plt): This. (elf_x86_64_eh_frame_plt_got): Renamed to ... (elf_x86_64_eh_frame_non_lazy_plt): This. (elf_x86_64_lazy_plt_layout): New. (elf_x86_64_non_lazy_plt_layout): Likewise. (elf_x86_64_plt_layout): Likewise. (elf_x86_64_backend_data): Remove PLT layout information. Add os for target system. (GET_PLT_ENTRY_SIZE): Removed. (elf_x86_64_lazy_plt): New. (elf_x86_64_non_lazy_plt): Likewise. (elf_x86_64_lazy_bnd_plt): Likewise. (elf_x86_64_non_lazy_bnd_plt): Likewise. (elf_x86-64_arch_bed): Updated. (elf_x86_64_link_hash_table): Add plt, lazy_plt and non_lazy_plt. (elf_x86_64_create_dynamic_sections): Removed. (elf_x86_64_check_relocs): Don't check elf.dynobj. Don't call _bfd_elf_create_ifunc_sections nor _bfd_elf_create_got_section. (elf_x86-64_adjust_dynamic_symbol): Updated. (elf_x86_64_allocate_dynrelocs): Updated. Pass 0 as PLT header size to _bfd_elf_allocate_ifunc_dyn_relocs and don't allocate size for PLT0 if there is no PLT0. Get plt_entry_size from non_lazy_plt for non-lazy PLT entries. (elf_x86_64_size_dynamic_sections): Updated. Get plt_entry_size from non_lazy_plt for non-lazy PLT entries. (elf_x86-64_relocate_section): Updated. Properly get PLT index if there is no PLT0. (elf_x86_64_finish_dynamic_symbol): Updated. Fill the first slot in the PLT entry with generic PLT layout. Fill the non-lazy PLT entries with non-lazy PLT layout. Don't fill the second and third slots in the PLT entry if there is no PLT0. (elf_x86_64_finish_dynamic_sections): Updated. Don't fill PLT0 if there is no PLT0. Set sh_entsize on the .plt.got section. (compare_relocs): New. (elf_x86_64_plt_type): Likewise. (elf_x86_64_plt): Likewise. (elf_x86_64_nacl_plt): New. Forward declaration. (elf_x86_64_get_plt_sym_val): Removed. (elf_x86_64_get_synthetic_symtab): Rewrite to check PLT sections against all dynamic relocations. (elf_x86_64_link_setup_gnu_properties): New function. (elf_backend_create_dynamic_sections): Updated. (elf_backend_setup_gnu_properties): New. (elf_x86_64_nacl_plt): New. (elf_x86_64_nacl_arch_bed): Updated. ld/ * testsuite/ld-ifunc/ifunc-16-x86-64-now.d: New file. * testsuite/ld-ifunc/ifunc-2-local-x86-64-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-x86-64-now.d: Likewise. * testsuite/ld-ifunc/pr17154-x86-64-now.d: Likewise. * testsuite/ld-x86-64/bnd-branch-1-now.d: Likewise. * testsuite/ld-x86-64/bnd-ifunc-1-now.d: Likewise. * testsuite/ld-x86-64/bnd-ifunc-2-now.d: Likewise. * testsuite/ld-x86-64/bnd-plt-1-now.d: Likewise. * testsuite/ld-x86-64/mpx3n.dd: Likewise. * testsuite/ld-x86-64/mpx4n.dd: Likewise. * testsuite/ld-x86-64/plt-main-bnd-now.rd: Likewise. * testsuite/ld-x86-64/plt2.dd: Likewise. * testsuite/ld-x86-64/plt2.rd: Likewise. * testsuite/ld-x86-64/plt2.s: Likewise. * testsuite/ld-x86-64/pr20830a-now.d: Likewise. * testsuite/ld-x86-64/pr20830b-now.d: Likewise. * testsuite/ld-x86-64/pr21038a-now.d: Likewise. * testsuite/ld-x86-64/pr21038b-now.d: Likewise. * testsuite/ld-x86-64/pr21038c-now.d: Likewise. * testsuite/ld-x86-64/load1b-nacl.d: Updated. * testsuite/ld-x86-64/load1b.d: Likewise. * testsuite/ld-x86-64/plt-main-bnd.dd: Likewise. * testsuite/ld-x86-64/pr20253-1h.d: Likewise. * testsuite/ld-x86-64/pr20830a.d: Update the .plt.got section with func@plt. * testsuite/ld-x86-64/pr20830b.d: Likewise. * testsuite/ld-x86-64/pr21038a.d: Likewise. * testsuite/ld-x86-64/pr21038c.d: Likewise. * testsuite/ld-x86-64/mpx.exp: Add some -z now tests. * testsuite/ld-x86-64/x86-64.exp: Likewise.
2017-05-08i386: Improve PLT generation and synthetic PLT symbolsH.J. Lu11-2/+259
On i386, the procedure linkage table (PLT) is used to 1. Call external function. 2. Call internal IFUNC function. The best implementation is selected for the target processor at run-time. 3. Act as the canonical function address. 4. Support LD_AUDIT to audit external function calls. 5. Support LD_PROFILE to profile external function calls. PLT looks like: PLT0: push GOT[1] jmp *GOT[2] nop PLT1: jmp *GOT[name1_index] push name1_reloc_index jmp PLT0 GOT is an array of addresses. Initially the GOT entry of name1 is filled with the address of the "push name1_reloc_index" instruction. The function, name1, is called via "jmp *GOT[name1]" in the PLT entry. Even when lazy binding is disabled by "-z now", the PLT0 entry may still be used with LD_AUDIT or LD_PROFILE if PLT entry is used for canonical function address. 1. With lazy binding, when the external function, name1, is called the first time, dynamic linker is called via PLT0 to update GOT[name1_index] with the actual address of name1 and transfers control to name1 afterwards. 2. PLT is also used to call a local IFUNC function, name1, run-time loader updates GOT[name1_index] when loading the module. This patch 1. Remove PLT layout configurations from i386 backend_data. 2. Add generic, lay and non-lazy PLT layout configurations to i386 link_hash_table. Generic PLT layout includes the PLT entry templates, information how to update the first instruction in PLT and PLT eh_frame informaton, which are initialized in i386 setup_gnu_properties, based on PIC and target selection. PLT section alignment is also set to PLT entry size for non-NaCl/VxWorks target. 3. Remove elf_i386_create_dynamic_sections. create_dynamic_sections isn't always called, but GOT relocations need GOT relocations. Instead, create all i386 specific dynamic sections in i386 setup_gnu_properties, which initializes elf.dynobj, so that i386 check_relocs can be simplified. 4. Rewrite elf_i386_get_synthetic_symtab to check PLT sections against all dynamic relocations to support both lazy and non-lazy PLTs. bfd/ * elf32-i386.c (PLT_ENTRY_SIZE): Renamed to ... (LAZY_PLT_ENTRY_SIZE): This. (NON_LAZY_PLT_ENTRY_SIZE): New. (elf_i386_plt0_entry): Renamed to ... (elf_i386_lazy_plt0_entry): This. (elf_i386_plt_entry): Renamed to ... (elf_i386_lazy_plt_entry): This. (elf_i386_pic_plt0_entry): Renamed to ... (elf_i386_pic_lazy_plt0_entry): This. (elf_i386_pic_plt_entry): Renamed to ... (elf_i386_pic_lazy_plt_entry): This. (elf_i386_got_plt_entry): Renamed to ... (elf_i386_non_lazy_plt_entry): This. (elf_i386_pic_got_plt_entry): Renamed to ... (elf_i386_pic_non_lazy_plt_entry): This. (elf_i386_eh_frame_plt): Renamed to ... (elf_i386_eh_frame_lazy_plt): This. (elf_i386_eh_frame_plt_got): Renamed to ... (elf_i386_eh_frame_non_lazy_plt): This. (elf_i386_plt_layout): Renamed to ... (elf_i386_lazy_plt_layout): This. Remove eh_frame_plt_got and eh_frame_plt_got_size. (elf_i386_non_lazy_plt_layout): New. (elf_i386_plt_layout): Likewise. (elf_i386_non_lazy_plt): Likewise. (GET_PLT_ENTRY_SIZE): Removed. (elf_i386_plt): Renamed to ... (elf_i386_lazy_plt): This. (elf_i386_backend_data): Remove plt. Rename is_vxworks to os. (elf_i386_arch_bed): Updated. (elf_i386_link_hash_table): Add plt, lazy_plt and non_lazy_plt. (elf_i386_create_dynamic_sections): Removed. (elf_i386_check_relocs): Don't check elf.dynobj. Don't call _bfd_elf_create_ifunc_sections nor _bfd_elf_create_got_section. (elf_i386_adjust_dynamic_symbol): Updated. (elf_i386_allocate_dynrelocs): Updated. Pass 0 as PLT header size to _bfd_elf_allocate_ifunc_dyn_relocs and don't allocate size for PLT0 if there is no PLT0. (elf_i386_size_dynamic_sections): Updated. Check whether GOT output section is discarded only if GOT isn't empty. (elf_i386_relocate_section): Updated. Properly get PLT index if there is no PLT0. (elf_i386_finish_dynamic_symbol): Updated. Don't fill the second and third slots in the PLT entry if there is no PLT0. (elf_i386_finish_dynamic_sections): Updated. Don't fill PLT0 if there is no PLT0. Set sh_entsize on the .plt.got section. (elf_i386_nacl_plt): Forward declaration. (elf_i386_get_plt_sym_val): Removed. (elf_i386_get_synthetic_symtab): Rewrite to check PLT sections against all dynamic relocations. (elf_i386_link_setup_gnu_properties): New function. (elf_backend_create_dynamic_sections): Updated. (elf_backend_setup_gnu_properties): New. (elf_i386_nacl_plt): Updated. (elf_i386_nacl_arch_bed): Likewise. (elf_i386_vxworks_arch_bed): Likewise. ld/ * testsuite/ld-i386/i386.exp: Add some -z now tests. * testsuite/ld-i386/plt-pic2.dd: New file. * testsuite/ld-i386/plt2.dd: Likewise. * testsuite/ld-i386/plt2.rd: Likewise. * testsuite/ld-i386/plt2.s: Likewise. * testsuite/ld-ifunc/ifunc-16-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-i386-now.d: Likewise. * testsuite/ld-ifunc/ifunc-2-local-i386-now.d: Likewise. * testsuite/ld-ifunc/pr17154-i386-now.d: Likewise. * testsuite/ld-i386/pr20830.d: Update the .plt.got section with func@plt.
2017-05-08Make import libraries relocatable objectsThomas Preud'homme3-1/+18
For ELF targets --out-implib currently generates an executable file (e_type is ET_EXEC) despite the file being expected to be linked against some other object file to make an executable later. It seems therefore more sensible to make the import library a relocatable object file (e_type set to ET_REL). Incidentally, as dicted by requirement 8 of "ARM v8-M Security Extensions: Requirements on Development Tools" (document ARM-ECM-0359818) version 1.0, import libraries generated when using --cmse-implib *must* be relocatable object file so this commit also adds an assert there in case the type of ELF import library is changed again in the future. 2017-05-08 Thomas Preud'homme <thomas.preudhomme@arm.com> bfd/ * elflink.c (elf_output_implib): Remove executable flag from import library bfd. * elf32-arm.c (elf32_arm_filter_implib_symbols): Assert that the import library is a relocatable object file. ld/ * testsuite/ld-arm/arm-elf.exp (Secure gateway import library generation): Check e_type field of import library and executable produced. * testsuite/ld-arm/cmse-implib.type: Expectations for e_type field.
2017-05-04Fix PR21404 - assertion fail when calculating symbol sizeSenthil Kumar Selvaraj17-0/+217
Fix a host of problems related to adjustment of symbol values and sizes when relaxing for avr. 1. Adjust symbol size first before adjusting symbol value. Otherwise, a symbol whose value just got adjusted to the relaxed address also ends up getting resized. See pr21404-1.s. 2. Reduce symbol sizes only if their span is below an alignment boundary. Otherwise, the size gets decremented once when the actual instruction is relaxed and padding bytes are added, and again when the padding bytes are deleted (if padding ends up being unnecessary). pr21404-2.s addresses that, and this bug is really the root cause of PR21404. 3. Adjust all symbol values before an alignment boundary. Previous code did not adjust symbol values if they fell in the would-be padded area, resulting in incorrect symbol values in some cases (see pr21404-3.s). 4. Increase symbol sizes if alignment directives require so. As pr21404-4.s shows .global nonzero_sym L1: jmp L1 nonzero_sym: nop nop .p2align 2 .size nonzero_sym, .-nonzero_sym The two nops satisfy the 4 byte alignment at assembly time and therefore the size of nonzero_sym is 4. Relaxation shortens the 4 byte jmp to a 2 byte rjmp, and to satisfy 4 byte alignment the code places 2 extra padding bytes after the nops, increasing nonzero_sym's size by 2. This wasn't handled before. If the assembly code does not have any align directives, then the boundary is the section size, and symbol values and sizes == boundary should also get adjusted. To handle that case, add a did_pad variable and use that to determine whether it should use < boundary or <= boundary. Also get rid of reloc_toaddr, which is now redundant. toaddr is now not adjusted to handle the above case - the newly added did_pad variable does the job. pr21404-{5,6,7,8} are the same testcases written for local symbols, as the code handles them slightly differently.
2017-05-03MIPS16/GAS: Relax 32-bit non-PIC PC-relative synthetic instructionsMaciej W. Rozycki10-0/+167
Implement the relaxation of MIPS16 PC-relative synthetic LA, DLA, LW and LD instructions to an equivalent sequence of instructions produced where the address operand requested is out of range, absolute or requires linker relocation, for ABIs that use 32-bit addressing and non-PIC code. The sequence generated uses the register specified for the destination operand as a temporary and begins with LI to load the high 16-bit part of the address, then continues with SLL by 16 bits to move that part into place and finally completes with a suitable operation corresponding to the synthetic instruction used, one of: 2-argument ADDIU, 2-argument DADDIU, absolute LW, and absolute LD respectively, providing the low 16-bit part of the address. All instructions use the extended encoding. As a special exception accept absolute addresses for relaxation even in PIC code. For example: la $2, 0x12345678 produces code as: li $2, 0x1234 sll $2, $2, 16 addiu $2, 0x5678 would. Where linker relocation is required emit an R_MIPS16_HI16 relocation on the initial LI instruction and an R_MIPS16_LO16 relocation on the final operation. For example (where `foo' is not local): lw $3, foo produces code as: li $3, %hi(foo) sll $3, $3, 16 lw $3, %lo(foo)($3) would. Emit assembly warnings as appropriate where this new relaxation triggers in the `nomacro' mode or for an instruction manually placed in a branch delay slot in the `noreorder' mode. Refrain from relaxation where an explicit instruction size suffix has been used and in the `noautoextend' mode. gas/ * config/tc-mips.c (RELAX_MIPS16_ENCODE): Add `pic', `sym32' and `nomacro' flags. (RELAX_MIPS16_PIC, RELAX_MIPS16_SYM32, RELAX_MIPS16_NOMACRO): New macros. (RELAX_MIPS16_USER_SMALL, RELAX_MIPS16_USER_EXT) (RELAX_MIPS16_DSLOT, RELAX_MIPS16_JAL_DSLOT) (RELAX_MIPS16_EXTENDED, RELAX_MIPS16_MARK_EXTENDED) (RELAX_MIPS16_CLEAR_EXTENDED, RELAX_MIPS16_ALWAYS_EXTENDED) (RELAX_MIPS16_MARK_ALWAYS_EXTENDED) (RELAX_MIPS16_CLEAR_ALWAYS_EXTENDED): Shift bits. (RELAX_MIPS16_MACRO, RELAX_MIPS16_MARK_MACRO) (RELAX_MIPS16_CLEAR_MACRO): New macros. (append_insn): Pass `mips_pic', HAVE_32BIT_SYMBOLS and `mips_opts.warn_about_macros' settings to RELAX_MIPS16_ENCODE. (mips16_macro_frag): New function. (md_estimate_size_before_relax): Handle HI16/LO16 relaxation. (mips_relax_frag): Likewise. (md_convert_frag): Likewise. * testsuite/gas/mips/mips16@relax-swap3.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16e@relax-swap3.d: New test subarchitecture. * testsuite/gas/mips/micromips@relax-swap3.d: Remove trailing NOP padding. * testsuite/gas/mips/mips16-pcrel-reloc-2.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-reloc-3.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-reloc-6.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-reloc-7.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-addend-2.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-addend-3.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-absolute.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16-pcrel-absolute-1.d: Remove error output, add dump patterns. * testsuite/gas/mips/mips16@relax-swap3.l: Remove file. * testsuite/gas/mips/mips16-pcrel-reloc-2.l: Remove file. * testsuite/gas/mips/mips16-pcrel-reloc-3.l: Remove file. * testsuite/gas/mips/mips16-pcrel-reloc-6.l: Remove file. * testsuite/gas/mips/mips16-pcrel-reloc-7.l: Remove file. * testsuite/gas/mips/mips16-pcrel-addend-2.l: Remove file. * testsuite/gas/mips/mips16-pcrel-addend-3.l: Remove file. * testsuite/gas/mips/mips16-pcrel-absolute.l: Remove file. * testsuite/gas/mips/mips16-pcrel-absolute-1.l: Remove file. * testsuite/gas/mips/relax-swap3.s: Adjust trailing padding. * testsuite/gas/mips/mips16-pcrel-0.d: New test. * testsuite/gas/mips/mips16-pcrel-1.d: New test. * testsuite/gas/mips/mips16-pcrel-2.d: New test. * testsuite/gas/mips/mips16-pcrel-3.d: New test. * testsuite/gas/mips/mips16-pcrel-4.d: New test. * testsuite/gas/mips/mips16-pcrel-5.d: New test. * testsuite/gas/mips/mips16-pcrel-pic-0.d: New test. * testsuite/gas/mips/mips16-pcrel-pic-1.d: New test. * testsuite/gas/mips/mips16-pcrel-n32-0.d: New test. * testsuite/gas/mips/mips16-pcrel-n32-1.d: New test. * testsuite/gas/mips/mips16-pcrel-n64-sym32-0.d: New test. * testsuite/gas/mips/mips16-pcrel-n64-sym32-1.d: New test. * testsuite/gas/mips/mips16-pcrel-n64-0.d: New test. * testsuite/gas/mips/mips16-pcrel-n64-1.d: New test. * testsuite/gas/mips/mips16-pcrel-delay-0.d: New test. * testsuite/gas/mips/mips16-pcrel-delay-1.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-4.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-5.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-6.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-7.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-8.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-9.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-pic-8.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-pic-9.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-n32-8.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-n32-9.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-n64-sym32-8.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-n64-sym32-9.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-n64-8.d: New test. * testsuite/gas/mips/mips16-pcrel-addend-n64-9.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-2.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-3.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-5.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-7.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-n32-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-n32-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-n64-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-n64-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-n64-sym32-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-n64-sym32-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n32-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n32-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-6.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-sym32-4.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-pic-n64-sym32-6.d: New test. * testsuite/gas/mips/mips16-pcrel-0.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-1.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-2.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-3.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-4.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-5.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-delay-0.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-delay-1.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-addend-8.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-addend-9.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-absolute-4.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-absolute-6.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-0.s: New test source. * testsuite/gas/mips/mips16-pcrel-1.s: New test source. * testsuite/gas/mips/mips16-pcrel-2.s: New test source. * testsuite/gas/mips/mips16-pcrel-3.s: New test source. * testsuite/gas/mips/mips16-pcrel-4.s: New test source. * testsuite/gas/mips/mips16-pcrel-5.s: New test source. * testsuite/gas/mips/mips16-pcrel-delay-0.s: New test source. * testsuite/gas/mips/mips16-pcrel-delay-1.s: New test source. * testsuite/gas/mips/mips16-pcrel-addend-4.s: New test source. * testsuite/gas/mips/mips16-pcrel-addend-5.s: New test source. * testsuite/gas/mips/mips16-pcrel-addend-6.s: New test source. * testsuite/gas/mips/mips16-pcrel-addend-7.s: New test source. * testsuite/gas/mips/mips16-pcrel-addend-8.s: New test source. * testsuite/gas/mips/mips16-pcrel-addend-9.s: New test source. * testsuite/gas/mips/mips16-pcrel-absolute-2.s: New test. * testsuite/gas/mips/mips16-pcrel-absolute-3.s: New test. * testsuite/gas/mips/mips16-pcrel-absolute-4.s: New test. * testsuite/gas/mips/mips16-pcrel-absolute-5.s: New test. * testsuite/gas/mips/mips16-pcrel-absolute-6.s: New test. * testsuite/gas/mips/mips16-pcrel-absolute-7.s: New test. * testsuite/gas/mips/mips.exp: Run the new tests. ld/ * testsuite/ld-mips-elf/mips16-pcrel-0.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-1.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-addend-2.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-addend-6.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-n32-0.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-n32-1.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-n64-sym32-0.d: New test. * testsuite/ld-mips-elf/mips16-pcrel-n64-sym32-1.d: New test. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-05-03Adjust testsuite/ld-elf/pr21384.dH.J. Lu2-0/+6
Adjust testsuite/ld-elf/pr21384.d to accommodate additional dynamic symbols on some targets. * testsuite/ld-elf/pr21384.d: Adjusted to accommodate additional dynamic symbols on some targets.
2017-05-03MIPS16/GAS: Fix absolute references with PC-relative synthetic instructionsMaciej W. Rozycki11-0/+90
Complement commit 88a7ef168927 ("MIPS16/GAS: Restore unsupported relocation diagnostics") and also propagate constant expressions, either already reduced from absolute symbol references or created from literals in the first place, used as a PC-relative operand with the MIPS16 LA, LW, DLA and LD synthetic instructions to relaxation, matching the way forward absolute symbol references have been handled as from the commit referred and letting relaxation produce any necessary relocations, if possible, for the absolute value requested to be reproduced at the run time. Call `symbol_append' for any expression symbol created for the purpose of MIPS16 relaxation as with constant expressions now propagated from earlier on such symbols may make it through and have R_MIPS16_PC16_S1 relocations emitted against, and therefore need to appear in the symbol table produced. gas/ * config/tc-mips.c (append_insn): Call `symbol_append' for any expression symbol created for MIPS16 relaxation. (match_mips16_insn): Don't encode a constant value as an immediate with a PC-relative operand. * testsuite/gas/mips/mips16-pcrel-absolute-1.d: New test. * testsuite/gas/mips/mips16-branch-absolute-1.d: New test. * testsuite/gas/mips/mips16-branch-absolute-2.d: New test. * testsuite/gas/mips/mips16-branch-absolute-addend-1.d: New test. * testsuite/gas/mips/mips16-branch-absolute-n32-1.d: New test. * testsuite/gas/mips/mips16-branch-absolute-n32-2.d: New test. * testsuite/gas/mips/mips16-branch-absolute-addend-n32-1.d: New test. * testsuite/gas/mips/mips16-branch-absolute-n64-1.d: New test. * testsuite/gas/mips/mips16-branch-absolute-n64-2.d: New test. * testsuite/gas/mips/mips16-branch-absolute-addend-n64-1.d: New test. * testsuite/gas/mips/mips16-pcrel-absolute-1.l: New stderr output. * testsuite/gas/mips/mips16-pcrel-absolute-1.s: New test source. * testsuite/gas/mips/mips16-branch-absolute-1.s: New test source. * testsuite/gas/mips/mips16-branch-absolute-2.s: New test source. * testsuite/gas/mips/mips16-branch-absolute-addend-1.s: New test source. * testsuite/gas/mips/mips.exp: Run the new tests. ld/ * testsuite/ld-mips-elf/mips16-branch-absolute-1.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-2.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-addend-1.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-n32-1.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-n32-2.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-addend-n32-1.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-n64-1.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-n64-2.d: New test. * testsuite/ld-mips-elf/mips16-branch-absolute-addend-n64-1.d: New test. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-05-02x86: Add -Wl,--no-as-needed to some TLS testsH.J. Lu3-3/+10
* testsuite/ld-i386/tls.exp: Add -Wl,--no-as-needed to "TLS without PLT (1)" and "TLS without PLT (3)". * testsuite/ld-x86-64/tls.exp: Add -Wl,--no-as-needed to to "TLS without PLT (3)".
2017-05-02Add a test for PR ld/21384H.J. Lu5-0/+47
PR ld/21384 * testsuite/ld-elf/pr21384.d: New file. * testsuite/ld-elf/pr21384.dl: Likewise. * testsuite/ld-elf/pr21384.ld: Likewise. * testsuite/ld-elf/pr21384.s: Likewise.
2017-05-01x86: Run GNU2 TLS tests with working GNU2 TLS supportH.J. Lu4-0/+81
Check if GNU2 TLS really works before running GNU2 TLS tests. * testsuite/ld-i386/tls.exp: Run GNU2 TLS tests only if there is working GNU2 TLS support. * testsuite/ld-x86-64/tls.exp: Likewise. * testsuite/lib/ld-lib.exp (check_gnu2_tls_available): New proc.
2017-04-28x86: Add run-time tests for -mtls-dialect=gnu2H.J. Lu8-0/+223
* testsuite/config/default.exp (GNU2_CFLAGS): New. Set to -mtls-dialect=gnu2 if target compiler supports it. * testsuite/ld-i386/tls.exp: Run -mtls-dialect=gnu2 tests. * testsuite/ld-x86-64/tls.exp: Likewise. * testsuite/ld-i386/tlsdesc1a.c: New file. * testsuite/ld-i386/tlsdesc1b.c: Likewise. * testsuite/ld-x86-64/tlsdesc1a.c: Likewise. * testsuite/ld-x86-64/tlsdesc1b.c: Likewise.
2017-04-28ELF: Add run-time tests for -z nowH.J. Lu5-0/+298
* testsuite/ld-elf/shared.exp: Add run-time tests for -z now. * testsuite/ld-i386/tls.exp: Likewise. * testsuite/ld-ifunc/ifunc.exp: Likewise. * testsuite/ld-x86-64/tls.exp: Likewise.
2017-04-27x86: Create dynamic sections in create_dynamic_sectionsH.J. Lu3-3/+13
This patch creates dynamic sections in i386/x86-64 create_dynamic_sections instead of creating them on demend. Linker will strip them if they are empty. It changes order in x86-64 .eh_frame section. The extra DW_CFA_nop paddings is due to https://sourceware.org/bugzilla/show_bug.cgi?id=21441 bfd/ * elf32-i386.c (elf_i386_create_dynamic_sections): Create the .plt.got section here. (elf_i386_check_relocs): Don't create the .plt.got section. * elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Create the .plt.got and .plt.bnd sections here. (elf_x86_64_check_relocs): Don't create the .plt.got nor .plt.bnd sections. ld/ * testsuite/ld-x86-64/pr21038a.d: Update DW_CFA_nop paddings in .eh_frame section. * testsuite/ld-x86-64/pr21038c.d: Update .eh_frame order.
2017-04-26x86: Add DT_PLTRELSZ/DT_PLTREL/DT_JMPREL for PLT relocationH.J. Lu5-0/+27
x86, PLT relocation may contain R_386_TLS_DESC or R_X86_64_TLSDESC even though there is no real PLT. We need to add DT_PLTRELSZ, DT_PLTREL and DT_JMPREL if there is a .rel.plt/.rela.plt section. bfd/ * elf32-i386.c (elf_i386_size_dynamic_sections): Alwasys add DT_PLTRELSZ, DT_PLTREL and DT_JMPREL for .rel.plt section. * elf64-x86-64.c (elf_x86_64_size_dynamic_sections): Alwasys add DT_PLTRELSZ, DT_PLTREL and DT_JMPREL for .rela.plt section. ld/ * testsuite/ld-i386/tlsdesc2.d: New test. * testsuite/ld-x86-64/tlsdesc2.d: Likewise.
2017-04-26PR ld/21334: Always call `_bfd_elf_link_renumber_dynsyms' if requiredMaciej W. Rozycki6-0/+69
Complement commit e17b0c351f0b ("MIPS/BFD: Respect the ELF gABI dynamic symbol table sort requirement") and correct an inconsistency in dynamic symbol accounting data causing an assertion failure in the MIPS backend: ld: BFD (GNU Binutils) 2.28.51.20170330 assertion fail ../../binutils-gdb/bfd/elfxx-mips.c:3860 in the course of making a GOT entry in a static binary to satisfy a GOT relocation present in input, due to the local dynamic symbol count not having been established. To do so let backends request `_bfd_elf_link_renumber_dynsyms' to be always called, rather than where a dynamic binary is linked only, and then make this request in the MIPS backend. bfd/ PR ld/21334 * elf-bfd.h (elf_backend_data): Add `always_renumber_dynsyms' member. * elfxx-target.h [!elf_backend_always_renumber_dynsyms] (elf_backend_always_renumber_dynsyms): Define. (elfNN_bed): Initialize `always_renumber_dynsyms' member. * elfxx-mips.h (elf_backend_always_renumber_dynsyms): Define. * elflink.c (bfd_elf_size_dynamic_sections): Also call `_bfd_elf_link_renumber_dynsyms' if the backend has requested it. (bfd_elf_size_dynsym_hash_dynstr): Likewise. ld/ PR ld/21334 * testsuite/ld-mips-elf/pr21334.dd: New test. * testsuite/ld-mips-elf/pr21334.gd: New test. * testsuite/ld-mips-elf/pr21334.ld: New test linker script. * testsuite/ld-mips-elf/pr21334.s: New test source. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-04-24x86-64: Force symbol dynamic if it isn't undefined weakH.J. Lu3-1/+13
Force symbol dynamic if it isn't undefined weak. Generate relative relocation for GOT reference against non-dynamic symbol in PIC to avoid unnecessary dynamic symbols. bfd/ * elf64-x86-64.c (elf_x86_64_link_hash_entry): Add no_finish_dynamic_symbol. (elf_x86_64_link_hash_newfunc): Set no_finish_dynamic_symbol to 0. (elf_x86_64_allocate_dynrelocs): If a symbol isn't undefined weak symbol, don't make it dynamic. (elf_x86_64_relocate_section): If a symbol isn't dynamic in PIC, set no_finish_dynamic_symbol and generate R_X86_64_RELATIVE relocation for GOT reference. (elf_x86_64_finish_dynamic_symbol): Abort if no_finish_dynamic_symbol isn't 0. ld/ * testsuite/ld-x86-64/no-plt.exp: Also check no-plt-1e.nd. * testsuite/ld-x86-64/no-plt-1e.nd: New file.
2017-04-24i386: Skip pr12570 tests for nacl targetsH.J. Lu3-0/+7
commit f129e49f4d07f4d36319ac757fdcf3a8ce7d605b Author: H.J. Lu <hjl.tools@gmail.com> Date: Tue Jan 10 11:30:25 2017 -0800 Don't use elf_i386_eh_frame_plt directly fixed i386 PLT eh_frame generation. Skip pr12570 tests since they are for non-nacl targets. * testsuite/ld-i386/pr12570a.d: Skip for nacl targets. * testsuite/ld-i386/pr12570b.d: Likewise.
2017-04-24i386: Set ELF_MAXPAGESIZE to 0x1000 for VxWorksH.J. Lu2-1/+6
commit a27e437177412e5b52999723f3c5d5d0d37b9087 Author: Roland McGrath <roland@gnu.org> Date: Thu Jul 28 22:35:15 2011 +0000 BFD vector for elf32-i386-nacl: changed ELF_MAXPAGESIZE to 0x10000 for VxWorks. This patch fixes it and updated testsuite/ld-i386/vxworks2.sd to add space for program headers. bfd/ PR ld/21425 * elf32-i386.c (ELF_MAXPAGESIZE): Set to 0x1000 for VxWorks. ld/ PR ld/20815 * testsuite/ld-i386/vxworks2.sd: Add space for program headers.
2017-04-24ld: fix regressions with rett instructions in sparc tests.Jose E. Marchesi4-3/+10
A few tests in the ld testsuite were expecting the disassembler to emit `rett' instructions in V9. This patch updates the tests to expect `return' instead. ld/ChangeLog: 2017-04-24 Jose E. Marchesi <jose.marchesi@oracle.com> * testsuite/ld-sparc/tlssunbin64.dd: Expect `return' instructions instead of `rett' in V9. * testsuite/ld-sparc/tlssunnopic64.dd: Likewise. * testsuite/ld-sparc/tlssunpic64.dd: Likewise.
2017-04-21i386: Avoid dynamic symbol with GOT reference in PIEH.J. Lu2-5/+6
GOT reference to global symbol in PIE will lead to dynamic symbol. It becomes a problem when "time" or "times" is defined as a variable in an executable, clashing with functions of the same name in libc. If a symbol isn't undefined weak symbol, don't make it dynamic in PIE and generate R_386_RELATIVE relocation. bfd/ PR ld/21402 * elf32-i386.c (elf_i386_link_hash_entry): Add no_finish_dynamic_symbol. (elf_i386_link_hash_newfunc): Set no_finish_dynamic_symbol to 0. (elf_i386_allocate_dynrelocs): If a symbol isn't undefined weak symbol, don't make it dynamic in PIE. (elf_i386_relocate_section): If a symbol isn't dynamic in PIE, set no_finish_dynamic_symbol and generate R_386_RELATIVE relocation for R_386_GOT32 (elf_i386_finish_dynamic_symbol): Abort if no_finish_dynamic_symbol isn't 0. ld/ PR ld/21402 * testsuite/ld-elf/indirect.exp: Don't skip PIE indirect5 and indirect6 tests on i386.
2017-04-21Require --no-dynamic-linker with -static -E/--dynamic-listH.J. Lu9-7/+31
When -static -E/--dynamic-list are passed to linker, linker may create executable with dynamic sections which aren't supported by run-time. We require --no-dynamic-linker together with -static -E/--dynamic-list before adding dynamic symbol table to static executable. bfd/ PR ld/19617 PR ld/21086 * elflink.c (elf_link_add_object_symbols): Require --no-dynamic-linker with -E/--dynamic-list when creating dynamic sections. ld/ PR ld/19617 PR ld/21086 * testsuite/ld-elf/pr19617a.d: Pass --no-dynamic-linker to ld. * testsuite/ld-elf/pr19617b.d: Likewise. * testsuite/ld-elf/pr19617c.d: Likewise. *testsuite/ld-i386/pr19636-4d.d: Likewise. * testsuite/ld-elf/readelf.exp: Pass --no-dynamic-linker to ld with --export-dynamic. * testsuite/ld-elf/shared.exp: Pass --no-dynamic-linker to ld with -E.
2017-04-20Skip PIE indirect5 and indirect6 tests on i386H.J. Lu2-8/+22
On i386, since GOT reference is needed to access global symbols in PIE, those symbols are made dynamic. Crash happens when there is a reference to the same global symbol with a different symbol type in a shared object. Since mixing different types of the same symbol doesn't work in general, this patch skips those tests on i386 as well as compiles non-PIE indirect5 and indirect6 tests with $NOPIE_LDFLAGS and $NOPIE_CFLAGS. PR ld/21402 * testsuite/ld-elf/indirect.exp: Pass $NOPIE_LDFLAGS and $NOPIE_CFLAGS to non-PIE indirect5 and indirect6 tests. Skip PIE indirect5 and indirect6 tests on i386.
2017-04-20MIPS/LD/testsuite: Join `__ehdr_start' testsMaciej W. Rozycki2-2/+5
Complement commit 3807734dbe48 ("PR ld/15428: MIPS/LD/testsuite: Un-KFAIL `__ehdr_start' test 2") and join tests that do not need to be split anymore. ld/ * testsuite/ld-mips-elf/mips-elf.exp: Join `__ehdr_start' tests.
2017-04-20Handle symbol defined in IR and referenced in DSOH.J. Lu5-6/+61
We need to make an IR symbol visible if it is defined in an IR object and referenced in a dynamic object. When --as-needed is used, since linker removes the IR symbol reference of the dynamic object if the dynamic object isn't needed in the first pass, the IR definition isn't visible to the dynamic object even if the dynamic object becomes needed in the second pass. Add dynamic_ref_after_ir_def to bfd_link_hash_entry to track IR symbol which is defined in an IR object and later referenced in a dynamic object. dynamic_ref_after_ir_def is preserved when restoring the symbol table for unneeded dynamic object. bfd/ PR ld/21382 * elflink.c (elf_link_add_object_symbols): Preserve dynamic_ref_after_ir_def when restoring the symbol table for unneeded dynamic object. include/ PR ld/21382 * bfdlink.h (bfd_link_hash_entry): Add dynamic_ref_after_ir_def. ld/ PR ld/21382 * plugin.c (is_visible_from_outside): Symbol may be visible from outside if dynamic_ref_after_ir_def is set. (plugin_notice): Set dynamic_ref_after_ir_def if the symbol is defined in an IR object and referenced in a dynamic object. * testsuite/ld-plugin/lto.exp: Run PR ld/21382 tests. * testsuite/ld-plugin/pr21382a.c: New file. * testsuite/ld-plugin/pr21382b.c: Likewise.
2017-04-19x86-64: Handle undefined IFUNC symbol with -z nowH.J. Lu2-0/+14
Since undefined IFUNC symbol is treated as normal FUNC symbol, don't abort on undefined IFUNC symbol in the second PLT. bfd/ PR ld/21401 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Don't abort on on undefined IFUNC symbol in the second PLT. ld/ PR ld/21401 * testsuite/ld-ifunc/ifunc.exp: Add a libtest-2-now.so test with -z now.
2017-04-19Implement -z dynamic-undefined-weakAlan Modra7-45/+144
-z nodynamic-undefined-weak is only implemented for x86. (The sparc backend has some support code but doesn't enable the option by including ld/emulparams/dynamic_undefined_weak.sh, and since the support looks like it may be broken I haven't enabled it.) This patch adds the complementary -z dynamic-undefined-weak, extends both options to affect building of shared libraries as well as executables, and adds support for the option on powerpc. include/ * bfdlink.h (struct bfd_link_info <dynamic_undefined_weak>): Revise comment. bfd/ * elflink.c (_bfd_elf_adjust_dynamic_symbol): Hide undefweak or make dynamic for info->dynamic_undefined_weak 0 and 1. * elf32-ppc.c:Formatting. (ensure_undefweak_dynamic): Don't make dynamic when info->dynamic_undefined_weak is zero. (allocate_dynrelocs): Discard undefweak dyn_relocs for info->dynamic_undefined_weak. Discard undef dyn_relocs when not default visibility. Discard undef and undefweak dyn_relocs earlier. (ppc_elf_relocate_section): Adjust to suit. * elf64-ppc.c: Formatting. (ensure_undefweak_dynamic): Don't make dynamic when info->dynamic_undefined_weak is zero. (allocate_dynrelocs): Discard undefweak dyn_relocs for info->dynamic_undefined_weak. Discard them earlier. ld/ * ld.texinfo (dynamic-undefined-weak): Document. (nodynamic-undefined-weak): Document that this option now can be used with shared libs. * emulparams/dynamic_undefined_weak.sh: Support -z dynamic-undefined-weak. * emulparams/elf32ppccommon.sh: Include dynamic_undefined_weak.sh. * testsuite/ld-undefined/weak-undef.exp (undef_weak_so), (undef_weak_exe): New. Use them. Add -z dynamic-undefined-weak and -z nodynamic-undefined-weak tests. * Makefile.am: Update powerpc dependencies. * Makefile.in: Regenerate.
2017-04-17Put soname in the version definition sectionH.J. Lu6-0/+46
commit 902e9fc76a0ec9f642cefa71ef88cca1c675ad54 Author: Maciej W. Rozycki <macro@imgtec.com> Date: Tue Feb 21 01:46:42 2017 +0000 PR ld/20828: Move symbol version processing ahead of GC symbol sweep breaks version definition with --version-script --soname. This patch fixes it by getting soname index before generating the version definition section. bfd/ PR ld/21389 * elflink.c (bfd_elf_size_dynamic_sections): Get soname index before generating the version definition section. ld/ PR ld/21389 * testsuite/ld-elf/pr21389.map: New file. * testsuite/ld-elf/pr21389.s: Likewise. * testsuite/ld-elf/pr21389a.d: Likewise. * testsuite/ld-elf/pr21389b.d: Likewise. * testsuite/ld-elf/pr21389c.d: Likewise.
2017-04-17Undo dynamic symbol state after regular object sym type mismatchAlan Modra7-0/+125
We already handle the case of an object file first defining a symbol that a later shared library also defines where the symbol types are incompatible. This patch handles the reverse, when a later object file defines an incompatible symbol defined by an earlier shared library. bfd/ * elflink.c (_bfd_elf_merge_symbol): Undo dynamic linking state when a regular object file defines a symbol with incompatible type to that defined by an earlier shared lib. ld/ * testsuite/ld-elf/indirect5a.c, * testsuite/ld-elf/indirect5b.c, * testsuite/ld-elf/indirect5.map, * testsuite/ld-elf/indirect5.out: New test. * testsuite/ld-elf/indirect6a.c: Likewise. * testsuite/ld-elf/indirect.exp (check_dynamic_syms): New proc. Run new tests and check dynsyms.
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