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Fix warning: Invalid entry in .debug_gdb_scripts section

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$ gdb rustc
Reading symbols from rustc...Reading symbols from /usr/lib/debug/usr/bin/rustc.debug...done.
done.
warning: Invalid entry in .debug_gdb_scripts section

/usr/bin/rustc
Section Headers:
  [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
  [15] .debug_gdb_scripts PROGBITS        00000000000008ed 0008ed 000022 00 AMS  0   0  1

/usr/lib/debug/usr/bin/rustc.debug
Section Headers:
  [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
  [15] .debug_gdb_scripts NOBITS          00000000000008ed 000280 000022 00 AMS  0   0  1

There remains questionable whether bfd_get_section_by_name() should not return
an error for !SEC_LOAD but I haven't investigated that.

gdb/ChangeLog
2017-03-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* auto-load.c (auto_load_section_scripts): Check SEC_HAS_CONTENTS.

gdb/testsuite/ChangeLog
2017-03-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.python/py-section-script.exp (sepdebug): New testcases.
This commit is contained in:
Jan Kratochvil
2017-03-29 21:53:43 +02:00
parent f7c514a378
commit ec13808ef0
4 changed files with 48 additions and 1 deletions
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3
gdb/auto-load.c
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@ -1174,7 +1174,8 @@ auto_load_section_scripts (struct objfile *objfile, const char *section_name)
bfd_byte *data = NULL;
scripts_sect = bfd_get_section_by_name (abfd, section_name);
if (scripts_sect == NULL)
if (scripts_sect == NULL
|| (bfd_get_section_flags (abfd, scripts_sect) & SEC_HAS_CONTENTS) == 0)
return;
if (!bfd_get_full_section_contents (abfd, scripts_sect, &data))