From 1f6f5dba57ffbc073b1ead89647288feaaed2caf Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 14 Jun 2018 05:37:19 -0700 Subject: [PATCH] elf: Check if the first symbol version is base version 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. --- bfd/ChangeLog | 6 ++++++ bfd/elf.c | 5 ++++- binutils/ChangeLog | 6 ++++++ binutils/readelf.c | 7 ++++++- 4 files changed, 22 insertions(+), 2 deletions(-) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 2aa411d..06498a5 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2018-06-14 H.J. Lu + + PR binutils/23267 + * elf.c (_bfd_elf_get_symbol_version_string): Check if the first + symbol version is base version. + 2018-06-14 Alan Modra * elf-bfd.h (struct elf_link_hash_table): Add "dynamic_relocs". diff --git a/bfd/elf.c b/bfd/elf.c index 6c66bbc..0f75375 100644 --- a/bfd/elf.c +++ b/bfd/elf.c @@ -1865,7 +1865,10 @@ _bfd_elf_get_symbol_version_string (bfd *abfd, asymbol *symbol, if (vernum == 0) version_string = ""; - else if (vernum == 1) + else if (vernum == 1 + && (vernum > elf_tdata (abfd)->cverdefs + || (elf_tdata (abfd)->verdef[0].vd_flags + == VER_FLG_BASE))) version_string = "Base"; else if (vernum <= elf_tdata (abfd)->cverdefs) version_string = diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 0ec847f..d50ecb9 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,9 @@ +2018-06-14 H.J. Lu + + PR binutils/23267 + * readelf.c (get_symbol_version_string): Check if the first + symbol version is base version. + 2018-06-13 Scott Egerton Faraz Shahbazker diff --git a/binutils/readelf.c b/binutils/readelf.c index 3af729f..2188b25 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -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; -- 2.7.4