trace: move configuration from configure to Meson
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20211007130829.632254-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson.build b/meson.build
index 5418083..6a5e725 100644
--- a/meson.build
+++ b/meson.build
@@ -111,6 +111,22 @@
endif
endforeach
+dtrace = not_found
+stap = not_found
+if 'dtrace' in get_option('trace_backends')
+ dtrace = find_program('dtrace', required: true)
+ stap = find_program('stap', required: false)
+ if stap.found()
+ # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
+ # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
+ # instead. QEMU --enable-modules depends on this because the SystemTap
+ # semaphores are linked into the main binary and not the module's shared
+ # object.
+ add_global_arguments('-DSTAP_SDT_V2',
+ native: false, language: ['c', 'cpp', 'objc'])
+ endif
+endif
+
##################
# Compiler flags #
##################
@@ -201,6 +217,19 @@
error('Your compiler does not support -fsanitize=fuzzer')
endif
+if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
+ error('ftrace is supported only on Linux')
+endif
+if 'syslog' in get_option('trace_backends') and not cc.compiles('''
+ #include <syslog.h>
+ int main(void) {
+ openlog("qemu", LOG_PID, LOG_DAEMON);
+ syslog(LOG_INFO, "configure");
+ return 0;
+ }''')
+ error('syslog is not supported on this system')
+endif
+
if targetos != 'linux' and get_option('mpath').enabled()
error('Multipath is supported only on Linux')
endif
@@ -359,8 +388,9 @@
link_args: config_host['GIO_LIBS'].split())
endif
lttng = not_found
-if 'CONFIG_TRACE_UST' in config_host
- lttng = declare_dependency(link_args: config_host['LTTNG_UST_LIBS'].split())
+if 'ust' in get_option('trace_backends')
+ lttng = dependency('lttng-ust', required: true, method: 'pkg-config',
+ kwargs: static_kwargs)
endif
pixman = not_found
if have_system or have_tools
@@ -1347,6 +1377,11 @@
have_virtfs = false
endif
+foreach k : get_option('trace_backends')
+ config_host_data.set('CONFIG_TRACE_' + k.to_upper(), true)
+endforeach
+config_host_data.set_quoted('CONFIG_TRACE_FILE', get_option('trace_file'))
+
config_host_data.set_quoted('CONFIG_BINDIR', get_option('prefix') / get_option('bindir'))
config_host_data.set_quoted('CONFIG_PREFIX', get_option('prefix'))
config_host_data.set_quoted('CONFIG_QEMU_CONFDIR', get_option('prefix') / qemu_confdir)
@@ -1571,7 +1606,7 @@
ignored = ['CONFIG_QEMU_INTERP_PREFIX'] # actually per-target
arrays = ['CONFIG_BDRV_RW_WHITELIST', 'CONFIG_BDRV_RO_WHITELIST']
-strings = ['HOST_DSOSUF', 'CONFIG_IASL', 'CONFIG_TRACE_FILE']
+strings = ['HOST_DSOSUF', 'CONFIG_IASL']
foreach k, v: config_host
if ignored.contains(k)
# do nothing
@@ -2109,7 +2144,7 @@
tracetool = [
python, files('scripts/tracetool.py'),
- '--backend=' + config_host['TRACE_BACKENDS']
+ '--backend=' + ','.join(get_option('trace_backends'))
]
tracetool_depends = files(
'scripts/tracetool/backend/log.py',
@@ -2826,7 +2861,7 @@
emulators += {exe['name']: emulator}
endif
- if 'CONFIG_TRACE_SYSTEMTAP' in config_host
+ if stap.found()
foreach stp: [
{'ext': '.stp-build', 'fmt': 'stap', 'bin': meson.current_build_dir() / exe['name'], 'install': false},
{'ext': '.stp', 'fmt': 'stap', 'bin': get_option('prefix') / get_option('bindir') / exe['name'], 'install': true},
@@ -3007,9 +3042,9 @@
if have_system
summary_info += {'Audio drivers': ' '.join(audio_drivers_selected)}
endif
-summary_info += {'Trace backends': config_host['TRACE_BACKENDS']}
-if config_host['TRACE_BACKENDS'].split().contains('simple')
- summary_info += {'Trace output file': config_host['CONFIG_TRACE_FILE'] + '-<pid>'}
+summary_info += {'Trace backends': ','.join(get_option('trace_backends'))}
+if 'simple' in get_option('trace_backends')
+ summary_info += {'Trace output file': get_option('trace_file') + '-<pid>'}
endif
summary_info += {'QOM debugging': config_host.has_key('CONFIG_QOM_CAST_DEBUG')}
summary_info += {'vhost-kernel support': config_host.has_key('CONFIG_VHOST_KERNEL')}
