sanitizer: cherry pick 414482751452e54710f16bae58458c66298aaf69
The patch is needed in order to support recent glibc (2.34).
libsanitizer/ChangeLog:
PR sanitizer/101749
* sanitizer_common/sanitizer_posix_libcdep.cpp: Prevent
generation of dependency on _cxa_guard for static
initialization.
Signed-off-by: Sundeep KOKKONDA <sundeep.kokko...@gmail.com>
---
meta/recipes-devtools/gcc/gcc-11.2.inc | 1 +
.../gcc/0042-Fix-thread-stack-size-init.patch | 18 ++++++++++++++++++
2 files changed, 19 insertions(+)
create mode 100644
meta/recipes-devtools/gcc/gcc/0042-Fix-thread-stack-size-init.patch
diff --git a/meta/recipes-devtools/gcc/gcc-11.2.inc
b/meta/recipes-devtools/gcc/gcc-11.2.inc
index 40d2b59354..47575dba40 100644
--- a/meta/recipes-devtools/gcc/gcc-11.2.inc
+++ b/meta/recipes-devtools/gcc/gcc-11.2.inc
@@ -77,6 +77,7 @@ SRC_URI = "\
file://0003-CVE-2021-42574.patch \
file://0004-CVE-2021-42574.patch \
file://0001-CVE-2021-46195.patch \
+ file://0042-Fix-thread-stack-size-init.patch \
"
SRC_URI[sha256sum] =
"d08edc536b54c372a1010ff6619dd274c0f1603aa49212ba20f7aa2cda36fa8b"
diff --git
a/meta/recipes-devtools/gcc/gcc/0042-Fix-thread-stack-size-init.patch
b/meta/recipes-devtools/gcc/gcc/0042-Fix-thread-stack-size-init.patch
new file mode 100644
index 0000000000..02ba2401bb
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc/0042-Fix-thread-stack-size-init.patch
@@ -0,0 +1,18 @@
+Upstream-Status: Backport
[https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=90e46074e6b3561ae7d8ebd205127f286cc0c6b6]
+---
+--- a/libsanitizer/sanitizer_common/sanitizer_posix_libcdep.cpp
2022-03-15 07:59:54.515325204 -0700
++++ b/libsanitizer/sanitizer_common/sanitizer_posix_libcdep.cpp
2022-03-15 08:01:45.919405931 -0700
+@@ -166,9 +166,10 @@
+ #if !SANITIZER_GO
+ // TODO(glider): different tools may require different altstack size.
+ static uptr GetAltStackSize() {
+- // SIGSTKSZ is not enough.
+- static const uptr kAltStackSize = SIGSTKSZ * 4;
+- return kAltStackSize;
++ // Note: since GLIBC_2.31, SIGSTKSZ may be a function call, so this may be
++ // more costly that you think. However GetAltStackSize is only call 2-3
times
++ // per thread so don't cache the evaluation.
++ return SIGSTKSZ * 4;
+ }
+
+ void SetAlternateSignalStack() {
--
2.25.1
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