Nick Clifton
e922d1eaa3
Add ability to change linker warning messages into errors when reporting executable stacks and/or executable segments.
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include
* bfdlink.h (struct bfd_link_info): Update descriptions of the 'execstack', 'noexecstack' and 'warn_execstack' fields. Add 'error_exectack' and 'warn_is_error_for_rwx_segments' fields.
bfd
* elf.c (assign_file_positions_except_relocs): Turn warnings about executable segments into errors if so requested.
* elflink.c (bfd_elf_size_dynamic_sections): Turn warnings about executable stacks into errors if so requested.
ld
* ldlex.h (enum option_values): Add OPTION_ERROR_EXECSTACK, OPTION_NO_ERROR_EXECSTACK, OPTION_WARN_EXECSTACK_OBJECTS, OPTION_ERROR_RWX_SEGMENTS and OPTION_NO_ERROR_RWX_SEGMENTS. (struct ld_option): Add new long options. (parse_args): Parse new long options. (elf_static_list_options): Display the new options.
* ld.texi: Document the new command line options.
* configure.ac (error-execstack): New configuration option. (error-rwx-segments): New configuration option.
* emultempl/elf.em (_before_parse): Initialse the new linkinfo fields.
* NEWS: Mention the new features.
* config.in: Regenerate.
* configure: Regenerate.
* testsuite/ld-elf/commonpage2.d: Disable errors for RWX segments and/or executable stacks.
* testsuite/ld-elf/elf.exp: Likewise.
* testsuite/ld-elf/header.d: Likewise.
* testsuite/ld-elf/loadaddr1.d: Likewise.
* testsuite/ld-elf/loadaddr2.d: Likewise.
* testsuite/ld-elf/maxpage4.d: Likewise.
* testsuite/ld-elf/nobits-1.d: Likewise.
* testsuite/ld-elf/note-1.d: Likewise.
* testsuite/ld-elf/orphan-10.d: Likewise.
* testsuite/ld-elf/orphan-11.d: Likewise.
* testsuite/ld-elf/orphan-12.d: Likewise.
* testsuite/ld-elf/orphan-5.d: Likewise.
* testsuite/ld-elf/orphan-7.d: Likewise.
* testsuite/ld-elf/orphan-8.d: Likewise.
* testsuite/ld-elf/orphan-9.d: Likewise.
* testsuite/ld-elf/orphan-region.d: Likewise.
* testsuite/ld-elf/orphan.d: Likewise.
* testsuite/ld-elf/pr19539.d: Likewise.
* testsuite/ld-elf/pr26256-1a.d: Likewise.
* testsuite/ld-elf/pr26907.d: Likewise.
* testsuite/ld-elf/pr28597.d: Likewise.
* testsuite/ld-elf/retain2.d: Likewise.
* testsuite/ld-elf/shared.exp: Likewise.
* testsuite/ld-elf/size-1.d: Likewise.
* testsuite/ld-elf/textaddr7.d: Likewise.
* testsuite/ld-elf/warn1.d: Likewise.
* testsuite/ld-elf/warn2.d: Likewise.
* testsuite/ld-i386/discarded1.d: Likewise.
* testsuite/ld-i386/pr19175.d: Likewise.
* testsuite/ld-i386/pr19539.d: Likewise.
* testsuite/ld-i386/pr23189.d: Likewise.
* testsuite/ld-plugin/lto-3r.d: Likewise.
* testsuite/ld-plugin/lto-5r.d: Likewise.
* testsuite/ld-plugin/lto.exp: Likewise.
* testsuite/ld-powerpc/ppc476-shared.d: Likewise.
* testsuite/ld-powerpc/ppc476-shared2.d: Likewise.
* testsuite/ld-powerpc/pr28827-2.d: Likewise.
* testsuite/ld-s390/s390.exp: Likewise.
* testsuite/ld-scripts/align2a.d: Likewise.
* testsuite/ld-scripts/align2b.d: Likewise.
* testsuite/ld-scripts/align5.d: Likewise.
* testsuite/ld-scripts/alignof.exp: Likewise.
* testsuite/ld-scripts/crossref.exp: Likewise.
* testsuite/ld-scripts/defined2.d: Likewise.
* testsuite/ld-scripts/defined3.d: Likewise.
* testsuite/ld-scripts/defined5.d: Likewise.
* testsuite/ld-scripts/pr14962.d: Likewise.
* testsuite/ld-scripts/pr18963.d: Likewise.
* testsuite/ld-scripts/pr20302.d: Likewise.
* testsuite/ld-scripts/print-memory-usage.exp: Likewise.
* testsuite/ld-scripts/rgn-at1.d: Likewise.
* testsuite/ld-scripts/rgn-at10.d: Likewise.
* testsuite/ld-scripts/rgn-at4.d: Likewise.
* testsuite/ld-scripts/rgn-at6.d: Likewise.
* testsuite/ld-scripts/rgn-at8.d: Likewise.
* testsuite/ld-scripts/rgn-at9.d: Likewise.
* testsuite/ld-scripts/rgn-over1.d: Likewise.
* testsuite/ld-scripts/rgn-over2.d: Likewise.
* testsuite/ld-scripts/rgn-over4.d: Likewise.
* testsuite/ld-scripts/rgn-over5.d: Likewise.
* testsuite/ld-scripts/rgn-over6.d: Likewise.
* testsuite/ld-scripts/script.exp: Likewise.
* testsuite/ld-scripts/sizeof.exp: Likewise.
* testsuite/ld-scripts/sort-file.d: Likewise.
* testsuite/ld-x86-64/discarded1.d: Likewise.
* testsuite/ld-x86-64/pr19175.d: Likewise.
* testsuite/ld-x86-64/pr19539a.d: Likewise.
* testsuite/ld-x86-64/pr19539b.d: Likewise.
* testsuite/ld-x86-64/pr23189.d: Likewise.
2023-11-10 11:37:27 +00:00
Alan Modra
e553d5b2e7
XCOFF ld testsuite fixes
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* testsuite/ld-scripts/align.exp: Don't exclude xcoff. Pass
-bnogc ld option for xcoff.
* testsuite/ld-scripts/provide.exp: Likewise.
* testsuite/ld-scripts/data.exp: Pass -bnogc ld option for xcoff.
* testsuite/ld-scripts/default-script.exp: Likewise.
* testsuite/ld-scripts/defined.exp: Likewise.
* testsuite/ld-scripts/empty-address.exp: Likewise.
* testsuite/ld-scripts/expr.exp: Likewise.
* testsuite/ld-scripts/include.exp: Likewise.
* testsuite/ld-scripts/script.exp: Likewise.
* testsuite/ld-scripts/assign-loc.d: Don't exclude xcoff.
* testsuite/ld-scripts/defined3.d: Likewise.
* testsuite/ld-scripts/defined4.d: Likewise.
* testsuite/ld-scripts/pr18963.d: Likewise.
* testsuite/ld-scripts/sane1.d: Likewise.
* testsuite/ld-scripts/segment-start.d: Likewise.
* testsuite/ld-scripts/include-1.d: Likewise, and relax text vma.
* testsuite/ld-scripts/defined5.d: Update xfail and comment.
* testsuite/ld-scripts/defined5.s: Tweak "defined" to be at
non-zero section offset.
* testsuite/ld-scripts/fill16.d: xfail for xcoff.
* testsuite/ld-scripts/provide-2.d: Accept more symbols.
* testsuite/ld-scripts/provide-4.d: Likewise.
* testsuite/ld-scripts/provide-5.d: Likewise.
* testsuite/ld-scripts/provide-6.d: Likewise.
* testsuite/ld-scripts/provide-7.d: Likewise.
* testsuite/ld-scripts/align.t: Accept xcoff mapped .text and .data.
* testsuite/ld-scripts/defined3.t: Likewise.
* testsuite/ld-scripts/defined4.t: Likewise.
* testsuite/ld-scripts/defined5.t: Likewise.
* testsuite/ld-scripts/fill.t: Likewise.
* testsuite/ld-scripts/include-subdata.t: Likewise.
* testsuite/ld-scripts/provide-1.t: Likewise.
* testsuite/ld-scripts/provide-2.t: Likewise.
* testsuite/ld-scripts/provide-3.t: Likewise.
* testsuite/ld-scripts/provide-4.t: Likewise.
* testsuite/ld-scripts/provide-5.t: Likewise.
* testsuite/ld-scripts/provide-6.t: Likewise.
* testsuite/ld-scripts/provide-7.t: Likewise.
* testsuite/ld-scripts/provide-8.t: Likewise.
* testsuite/ld-scripts/assign-loc.t: Add required xcoff sections.
* testsuite/ld-scripts/sizeof.t: Likewise.
* testsuite/ld-scripts/align2.t: Likewise, and mapped sections.
* testsuite/ld-scripts/align5.t: Likewise.
* testsuite/ld-scripts/default-script.t: Likewise.
* testsuite/ld-scripts/empty-address-1.t: Likewise.
* testsuite/ld-scripts/empty-address-2a.t: Likewise.
* testsuite/ld-scripts/empty-address-2b.t: Likewise.
* testsuite/ld-scripts/empty-address-3a.t: Likewise.
* testsuite/ld-scripts/empty-address-3b.t: Likewise.
* testsuite/ld-scripts/empty-address-3c.t: Likewise.
* testsuite/ld-scripts/include-sections.t: Likewise.
* testsuite/ld-scripts/pr14962.t: Likewise.
* testsuite/ld-scripts/sane1.t: Likewise.
2020-07-07 18:26:34 +09:30
Stephen Casner
0203cad215
Fix the test for PR 18963 so that it will work on 16-bit targets.
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PR 18963
* testsuite/ld-scripts/pr18963.t: Reduce section sizes to fit in
16-bit address space.
* testsuite/ld-scripts/pr18963.d: Likewise.
2020-04-17 14:16:27 +01:00
Nick Clifton
ce1feff0e7
Revert "Fix the test for PR 18963 so that it will work on 16-bit targets."
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This reverts commit 7a1a12f4d1
2020-04-17 13:16:56 +01:00
Stephen Casner
7a1a12f4d1
Fix the test for PR 18963 so that it will work on 16-bit targets.
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PR ld/18963
* testsuite/ld-scripts/pr18963.s: New, replaces empty data.s to
allocate space in text, data, bss here rather than pr18963.t.
* testsuite/ld-scripts/pr18963.t: Remove assignments to dot.
* testsuite/ld-scripts/pr18963.d: Change addresses to fit 16 bits.
2020-04-16 16:13:31 +01:00
Alan Modra
975f8a9e31
Delay converting linker script defined symbols from absolute
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Giving linker script symbols defined outside of output sections a
section-relative value early, leads to them being used in expressions
as if they were defined inside an output section. This can mean loss
of the section VMA, and wrong results.
ld/
PR ld/18963
* ldexp.h (struct ldexp_control): Add rel_from_abs.
(ldexp_finalize_syms): Declare.
* ldexp.c (new_rel_from_abs): Keep absolute for expressions
outside of output section statements. Set rel_from_abs.
(make_abs, exp_fold_tree, exp_fold_tree_no_dot): Clear rel_from_abs.
(struct definedness_hash_entry): Add final_sec, and comment.
(update_definedness): Set final_sec.
(set_sym_sections, ldexp_finalize_syms): New functions.
* ldlang.c (lang_process): Call ldexp_finalize_syms.
ld/testsuite
PR ld/18963
* ld-scripts/pr18963.d,
* ld-scripts/pr18963.t: New test.
* ld-scripts/expr.exp: Run it.
* ld-elf/provide-hidden-2.ld: Explicitly make "dot" absolute.
* ld-mips-elf/gp-hidden.sd: Don't care about _gp section.
* ld-mips-elf/no-shared-1-n32.d: Don't care about symbol shown at
start of .data section.
* ld-mips-elf/no-shared-1-n64.d: Likewise.
* ld-mips-elf/no-shared-1-o32.d: Likewise.
2015-09-18 12:39:16 +09:30
