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authorNick Alcock <nick.alcock@oracle.com>2019-07-13 19:47:11 +0100
committerNick Alcock <nick.alcock@oracle.com>2019-10-03 17:04:55 +0100
commit616febde0c661843219b66e08e652e76ce856b8f (patch)
treed682ec59d7393fa18c10248503bd7a65bafb69b5 /binutils
parent2db912ba1a9e1c249cb4795f781fd4ea9fe9e7f2 (diff)
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binutils: readelf: when dumping CTF, load strtab and symtab automatically
We were only loading them when explicitly requested, which leads to strings that point off into empty space (into the non-loaded "external" ELF string table). Avoid this unfortunate consequence by loading the strtab and symtab by default, unless a blank name is given. binutils/ * readelf.c (dump_ctf_symtab_name): Give default value. (dump_ctf_strtab_name): Likewise. (dump_section_as_ctf): Allow for the null string.
Diffstat (limited to 'binutils')
-rw-r--r--binutils/ChangeLog6
-rw-r--r--binutils/doc/binutils.texi3
-rw-r--r--binutils/readelf.c10
3 files changed, 16 insertions, 3 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 356eb05..629e156 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2019-07-13 Nick Alcock <nick.alcock@oracle.com>
+
+ * readelf.c (dump_ctf_symtab_name): Give default value.
+ (dump_ctf_strtab_name): Likewise.
+ (dump_section_as_ctf): Allow for the null string.
+
2019-07-08 Nick Alcock <nick.alcock@oracle.com>
* objdump.c (dump_ctf_archive_member): Dump the CTF header.
diff --git a/binutils/doc/binutils.texi b/binutils/doc/binutils.texi
index b0de3d0..81d8bc1 100644
--- a/binutils/doc/binutils.texi
+++ b/binutils/doc/binutils.texi
@@ -4850,7 +4850,8 @@ command to @command{ar}, but without using the BFD library. @xref{ar}.
@item --ctf-symbols=@var{section}
@item --ctf-strings=@var{section}
Specify the name of another section from which the CTF file can inherit
-strings and symbols.
+strings and symbols. By default, the @code{.symtab} and its linked
+string table are used.
If either of @option{--ctf-symbols} or @option{--ctf-strings} is specified, the
other must be specified as well.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 7e2b3ad..cecad76 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -13944,7 +13944,13 @@ dump_section_as_ctf (Elf_Internal_Shdr * section, Filedata * filedata)
data = get_section_contents (section, filedata);
ctfsect.cts_data = data;
- if (dump_ctf_symtab_name)
+ if (!dump_ctf_symtab_name)
+ dump_ctf_symtab_name = strdup (".symtab");
+
+ if (!dump_ctf_strtab_name)
+ dump_ctf_strtab_name = strdup (".strtab");
+
+ if (dump_ctf_symtab_name && dump_ctf_symtab_name[0] != 0)
{
if ((symtab_sec = find_section (filedata, dump_ctf_symtab_name)) == NULL)
{
@@ -13959,7 +13965,7 @@ dump_section_as_ctf (Elf_Internal_Shdr * section, Filedata * filedata)
symsectp = shdr_to_ctf_sect (&symsect, symtab_sec, filedata);
symsect.cts_data = symdata;
}
- if (dump_ctf_strtab_name)
+ if (dump_ctf_strtab_name && dump_ctf_symtab_name[0] != 0)
{
if ((strtab_sec = find_section (filedata, dump_ctf_strtab_name)) == NULL)
{