diff options
| author | Thomas Huth <thuth@redhat.com> | 2024-04-11 14:08:19 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-12 12:02:12 +0200 |
| commit | 2d6d995709482cc8b6a76dbb5334a28001a14a9a (patch) | |
| tree | 83a849b136c15c99717e459b81ee9512363a5d53 | |
| parent | f9a7c4478c0dd64dc5eb00b6e8247c7d44d78540 (diff) | |
meson.build: Disable -fzero-call-used-regs on OpenBSD
QEMU currently does not work on OpenBSD since the -fzero-call-used-regs
option that we added to meson.build recently does not work with the
"retguard" extension from OpenBSD's Clang. Thus let's disable the
-fzero-call-used-regs here until there's a better solution available.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2278
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240411120819.56417-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | meson.build | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/meson.build b/meson.build index c9c3217ba4..91a0aa64c6 100644 --- a/meson.build +++ b/meson.build @@ -562,7 +562,11 @@ hardening_flags = [ # # NB: Clang 17 is broken and SEGVs # https://github.com/llvm/llvm-project/issues/75168 -if cc.compiles('extern struct { void (*cb)(void); } s; void f(void) { s.cb(); }', +# +# NB2: This clashes with the "retguard" extension of OpenBSD's Clang +# https://gitlab.com/qemu-project/qemu/-/issues/2278 +if host_os != 'openbsd' and \ + cc.compiles('extern struct { void (*cb)(void); } s; void f(void) { s.cb(); }', name: '-fzero-call-used-regs=used-gpr', args: ['-O2', '-fzero-call-used-regs=used-gpr']) hardening_flags += '-fzero-call-used-regs=used-gpr' |