FreeChainXenon/binutils-gdb
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elf: Check if the first symbol version is base version

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Check VER_FLG_BASE instead of assuming that the first symbol version is
base version.

bfd/

	PR binutils/23267
	* elf.c (_bfd_elf_get_symbol_version_string): Check if the first
	symbol version is base version.

binutils/

	PR binutils/23267
	* readelf.c (get_symbol_version_string): Check if the first
	symbol version is base version.
This commit is contained in:
H.J. Lu 2018-06-14 05:37:19 -07:00
parent 7b045207d1
commit 1f6f5dba57
4 changed files with 22 additions and 2 deletions
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7
binutils/readelf.c
View file

@ -11266,7 +11266,7 @@ get_symbol_version_string (Filedata * filedata,
vers_data = byte_get (data, 2);
if ((vers_data & VERSYM_HIDDEN) == 0 && vers_data <= 1)
if ((vers_data & VERSYM_HIDDEN) == 0 && vers_data == 0)
return NULL;
/* Usually we'd only see verdef for defined symbols, and verneed for
@ -11301,12 +11301,14 @@ get_symbol_version_string (Filedata * filedata,
ivd.vd_ndx = 0;
ivd.vd_aux = 0;
ivd.vd_next = 0;
ivd.vd_flags = 0;
}
else
{
ivd.vd_ndx = BYTE_GET (evd.vd_ndx);
ivd.vd_aux = BYTE_GET (evd.vd_aux);
ivd.vd_next = BYTE_GET (evd.vd_next);
ivd.vd_flags = BYTE_GET (evd.vd_flags);
}
off += ivd.vd_next;
@ -11315,6 +11317,9 @@ get_symbol_version_string (Filedata * filedata,
if (ivd.vd_ndx == (vers_data & VERSYM_VERSION))
{
if (ivd.vd_ndx == 1 && ivd.vd_flags == VER_FLG_BASE)
return NULL;
off -= ivd.vd_next;
off += ivd.vd_aux;