[libvirt PATCH] meson: Increase stack size limit for sanitizer builds

Tim Wiederhake twiederh at redhat.com
Thu Sep 23 09:23:38 UTC 2021


When building with "CC=clang", "-Db_sanitize=address,undefined", and
"-Dbuildtype=debug", the following error occurs:

    ../src/conf/nwfilter_conf.c:2190:1: error: stack frame size of 10616
    bytes in function 'virNWFilterRuleDefFixup' [-Werror,-Wframe-larger-than=]
    virNWFilterRuleDefFixup(virNWFilterRuleDef *rule)
    ^
    1 error generated.

Enforcing stack frame only makes sense on normal builds when stack usage
is deterministic.

Signed-off-by: Tim Wiederhake <twiederh at redhat.com>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 488490181f..be5a99a069 100644
--- a/meson.build
+++ b/meson.build
@@ -225,7 +225,7 @@ alloc_max = run_command(
 )
 
 # sanitizer instrumentation may enlarge stack frames
-stack_frame_size = get_option('b_sanitize') == 'none' ? 4096 : 8192
+stack_frame_size = get_option('b_sanitize') == 'none' ? 4096 : 32768
 
 # array_bounds=2 check triggers false positive on some GCC
 # versions when using sanitizers. Seen on Fedora 34 with
-- 
2.31.1




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