[v2,14/16] Documentation/changes: Raise minimum supported binutils version to 2.23
diff mbox series

Message ID 20200326080104.27286-15-masahiroy@kernel.org
State New
Headers show
  • x86, crypto: remove always-defined CONFIG_AS_* and cosolidate Kconfig/Makefiles
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Commit Message

Masahiro Yamada March 26, 2020, 8:01 a.m. UTC
From: Borislav Petkov <bp@suse.de>

The currently minimum-supported binutils version 2.21 has the problem of
promoting symbols which are defined outside of a section into absolute.
According to Arvind:

  binutils-2.21 and -2.22. An x86-64 defconfig will fail with
          Invalid absolute R_X86_64_32S relocation: _etext
  and after fixing that one, with
          Invalid absolute R_X86_64_32S relocation: __end_of_kernel_reserve

Those two versions of binutils have a bug when it comes to handling
symbols defined outside of a section and binutils 2.23 has the proper
fix, see: https://sourceware.org/legacy-ml/binutils/2012-06/msg00155.html

Therefore, up to the fixed version directly, skipping the broken ones.

Currently shipping distros already have the fixed binutils version so
there should be no breakage resulting from this.

For more details about the whole thing, see the thread in Link.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200110202349.1881840-1-nivedita@alum.mit.edu
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Changes in v2: None

 Documentation/process/changes.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff mbox series

diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index e47863575917..91c5ff8e161e 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -31,7 +31,7 @@  you probably needn't concern yourself with pcmciautils.
 ====================== ===============  ========================================
 GNU C                  4.6              gcc --version
 GNU make               3.81             make --version
-binutils               2.21             ld -v
+binutils               2.23             ld -v
 flex                   2.5.35           flex --version
 bison                  2.0              bison --version
 util-linux             2.10o            fdformat --version
@@ -76,7 +76,7 @@  You will need GNU make 3.81 or later to build the kernel.
-Binutils 2.21 or newer is needed to build the kernel.
+Binutils 2.23 or newer is needed to build the kernel.