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[mickledore,08/11] gcc: don't pass --enable-standard-branch-protection

Message ID 81351d984bc6238e9b901ae83c0de6e3d3463c77.1690052101.git.steve@sakoman.com
State New
Headers show
Series [mickledore,01/11] qemu: fix CVE-2023-0330 | expand

Commit Message

Steve Sakoman July 22, 2023, 6:56 p.m. UTC 
From: Ross Burton <ross.burton@arm.com>

By changing the default code generation of GCC we're inadvertently
breaking the GCC test suite, which has ~120K+ more failures when run for
aarch64 compared to x86-64.

This was because the generated code fragments included the BTI
instructions, which the test case wasn't expecting.  We can't tell the
tests globally to run without branch protection, as that will break the
tests which also turn it on.

Remove the enabling of branch protection by standard in GCC, we'll
enable it in the tune files instead.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit bb4b9017db6a893ed054a2d2ad4cc671dec09c42)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
 meta/recipes-devtools/gcc/gcc-configure-common.inc | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/meta/recipes-devtools/gcc/gcc-configure-common.inc b/meta/recipes-devtools/gcc/gcc-configure-common.inc
index e4cdb73f0a..dba25eb754 100644
--- a/meta/recipes-devtools/gcc/gcc-configure-common.inc
+++ b/meta/recipes-devtools/gcc/gcc-configure-common.inc
@@ -40,7 +40,6 @@  EXTRA_OECONF = "\
     ${@get_gcc_mips_plt_setting(bb, d)} \
     ${@get_gcc_ppc_plt_settings(bb, d)} \
     ${@get_gcc_multiarch_setting(bb, d)} \
-	--enable-standard-branch-protection \
 "
 
 # glibc version is a minimum controlling whether features are enabled.