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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-03-14 04:23:24 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-03-14 04:23:40 -0700 |
| commit | 9e223787a474c672c5f1cfd4574857241ae4eafa (patch) | |
| tree | df0b15bd36ada60535ed0795da1df927a8189221 | |
| parent | bf48520113c4265017769d374f6b1a7ce3fc8e41 (diff) | |
| download | gdb-9e223787a474c672c5f1cfd4574857241ae4eafa.zip gdb-9e223787a474c672c5f1cfd4574857241ae4eafa.tar.gz gdb-9e223787a474c672c5f1cfd4574857241ae4eafa.tar.bz2 | |
GC: Also check the local debug definition section
Extend
commit b7c871edcd83ccdc5fcd8148a7f433efd6b52255
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed May 17 07:57:15 2017 -0700
Mark debug sections referenced by kept debug sections
to handle the local debug definition section.
bfd/
PR ld/20882
* elflink.c (elf_gc_mark_debug_section): Also check the local
debug definition section.
ld/
PR ld/20882
* testsuite/ld-gc/pr20882.d: Also dump and check .debug_abbrev
section.
* testsuite/ld-gc/pr20882b.s: Add .debug_abbrev section.
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/elflink.c | 25 | ||||
| -rw-r--r-- | ld/ChangeLog | 7 | ||||
| -rw-r--r-- | ld/testsuite/ld-gc/pr20882.d | 9 | ||||
| -rw-r--r-- | ld/testsuite/ld-gc/pr20882b.s | 9 |
5 files changed, 45 insertions, 11 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ddf0d04..ad971fc 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2018-03-14 H.J. Lu <hongjiu.lu@intel.com> + + PR ld/20882 + * elflink.c (elf_gc_mark_debug_section): Also check the local + debug definition section. + 2018-03-13 Nick Clifton <nickc@redhat.com> PR 22113 diff --git a/bfd/elflink.c b/bfd/elflink.c index 092edae..6a3d516 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -12802,20 +12802,31 @@ _bfd_elf_gc_mark_hook (asection *sec, return NULL; } -/* Return the global debug definition section. */ +/* Return the debug definition section. */ static asection * elf_gc_mark_debug_section (asection *sec ATTRIBUTE_UNUSED, struct bfd_link_info *info ATTRIBUTE_UNUSED, Elf_Internal_Rela *rel ATTRIBUTE_UNUSED, struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) + Elf_Internal_Sym *sym) { - if (h != NULL - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - && (h->root.u.def.section->flags & SEC_DEBUGGING) != 0) - return h->root.u.def.section; + if (h != NULL) + { + /* Return the global debug definition section. */ + if ((h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + && (h->root.u.def.section->flags & SEC_DEBUGGING) != 0) + return h->root.u.def.section; + } + else + { + /* Return the local debug definition section. */ + asection *isec = bfd_section_from_elf_index (sec->owner, + sym->st_shndx); + if ((isec->flags & SEC_DEBUGGING) != 0) + return isec; + } return NULL; } diff --git a/ld/ChangeLog b/ld/ChangeLog index a750599..e74f722 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,5 +1,12 @@ 2018-03-14 H.J. Lu <hongjiu.lu@intel.com> + PR ld/20882 + * testsuite/ld-gc/pr20882.d: Also dump and check .debug_abbrev + section. + * testsuite/ld-gc/pr20882b.s: Add .debug_abbrev section. + +2018-03-14 H.J. Lu <hongjiu.lu@intel.com> + * testsuite/ld-gc/gc.exp: Fix a typo: $LFLAGS -> $LDFLAGS. 2018-03-13 Nick Clifton <nickc@redhat.com> diff --git a/ld/testsuite/ld-gc/pr20882.d b/ld/testsuite/ld-gc/pr20882.d index dd388c5..1d68d05 100644 --- a/ld/testsuite/ld-gc/pr20882.d +++ b/ld/testsuite/ld-gc/pr20882.d @@ -3,7 +3,10 @@ #source: pr20882b.s #source: pr20882c.s #ld: --gc-sections -e main -#readelf: -x .debug_info +#readelf: -x .debug_info -x .debug_abbrev -#... - 0x0+ (0a000000 00000000 |00000000 0000000a |06000000 |00000006 |0400|0004)28 .* +Hex dump of section '\.debug_info': + 0x0+ .* + +Hex dump of section '\.debug_abbrev': + 0x0+ 61626364 +abcd diff --git a/ld/testsuite/ld-gc/pr20882b.s b/ld/testsuite/ld-gc/pr20882b.s index ea0cf2e..baabf55 100644 --- a/ld/testsuite/ld-gc/pr20882b.s +++ b/ld/testsuite/ld-gc/pr20882b.s @@ -2,4 +2,11 @@ .hidden t.c.4903c230 .globl t.c.4903c230 t.c.4903c230: - .byte 0x28 + .dc.a .Ldebug_abbrev0 + + .section .debug_abbrev,"",%progbits +.Ldebug_abbrev0: + .byte 0x61 + .byte 0x62 + .byte 0x63 + .byte 0x64 |