[libvirt PATCH 1/6] meson: Allow larger stack frames when instrumenting

[Tim Wiederhake]

When enabling sanitizers, gcc adds some instrumentation to the code
that may enlarge stack frames. Some function's stack frames are already
close to the limit of 4096 and are enlarged past that threshold,
e.g. virLXCProcessStart which reaches a frame size of 4624 bytes.

Signed-off-by: Tim Wiederhake <twiederh at redhat.com>
---
 meson.build | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 618cbd6b1d..bbdbe4afd8 100644
--- a/meson.build
+++ b/meson.build
@@ -278,7 +278,8 @@ cc_flags += [
   '-Wformat-y2k',
   '-Wformat-zero-length',
   '-Wframe-address',
-  '-Wframe-larger-than=4096',
+  # sanitizer instrumentation may enlarge stack frames
+  '-Wframe-larger-than=@0@'.format(get_option('b_sanitize') in ['', 'none'] ? 4096 : 8192),
   '-Wfree-nonheap-object',
   '-Whsa',
   '-Wif-not-aligned',
-- 
2.26.3