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build: relax the relaxed stack frame limit further

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Pick 256k as the limit.

While -Wno-frame-larger-than would make more sense for usage
in our test suite, the -Wno version seems to have no effect
if -Wframe-larger-than was already specified.

Use an (un)reasonably large value instead.

Fixes the build with clang:
../../tests/cputest.c:964:1: error: stack frame size of 33176 bytes
in function 'mymain' [-Werror,-Wframe-larger-than=]
mymain(void)
^
1 error generated.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Ján Tomko 2019-12-14 22:26:26 +01:00
parent 5657608b5e
commit b87cca75c3
1 changed files with 1 additions and 1 deletions
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2
m4/virt-compile-warnings.m4
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@ -172,7 +172,7 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
# but using 1024 bytes sized buffers (mostly for virStrerror)
# stops us from going down further
wantwarn="$wantwarn -Wframe-larger-than=4096"
gl_WARN_ADD([-Wframe-larger-than=32768], [RELAXED_FRAME_LIMIT_CFLAGS])
gl_WARN_ADD([-Wframe-larger-than=262144], [RELAXED_FRAME_LIMIT_CFLAGS])
# Extra special flags
dnl -fstack-protector stuff passes gl_WARN_ADD with gcc