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| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-10-12 11:59:51 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-05-18 08:53:52 +0200 |
| commit | 721fa5e563e8174d6c33e1e413cebb5442625932 (patch) | |
| tree | 1f5891151063039da0e742be06dff14d075ca17f /meson.build | |
| parent | 34f983d86fe40ffe5975369c1cf5e6a61688383a (diff) | |
build: move SafeStack tests to meson
This disables the old behavior of detecting SafeStack from environment
CFLAGS. SafeStack is now enabled purely based on the configure arguments.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/meson.build b/meson.build index b50b0161ba..22eaca1951 100644 --- a/meson.build +++ b/meson.build @@ -211,6 +211,31 @@ if get_option('prefer_static') qemu_ldflags += get_option('b_pie') ? '-static-pie' : '-static' endif +# Compiles if SafeStack *not* enabled +safe_stack_probe = ''' + int main(void) + { + #if defined(__has_feature) + #if __has_feature(safe_stack) + #error SafeStack Enabled + #endif + #endif + return 0; + }''' +if get_option('safe_stack') != not cc.compiles(safe_stack_probe) + safe_stack_arg = get_option('safe_stack') ? '-fsanitize=safe-stack' : '-fno-sanitize=safe-stack' + if get_option('safe_stack') != not cc.compiles(safe_stack_probe, args: safe_stack_arg) + error(get_option('safe_stack') \ + ? 'SafeStack not supported by your compiler' \ + : 'Cannot disable SafeStack') + endif + qemu_cflags += safe_stack_arg + qemu_ldflags += safe_stack_arg +endif +if get_option('safe_stack') and config_host['CONFIG_COROUTINE_BACKEND'] != 'ucontext' + error('SafeStack is only supported with the ucontext coroutine backend') +endif + if get_option('sanitizers') if cc.has_argument('-fsanitize=address') qemu_cflags = ['-fsanitize=address'] + qemu_cflags @@ -1951,6 +1976,7 @@ config_host_data.set('CONFIG_OPENGL', opengl.found()) config_host_data.set('CONFIG_PROFILER', get_option('profiler')) config_host_data.set('CONFIG_RBD', rbd.found()) config_host_data.set('CONFIG_RDMA', rdma.found()) +config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack')) config_host_data.set('CONFIG_SDL', sdl.found()) config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found()) config_host_data.set('CONFIG_SECCOMP', seccomp.found()) |