done
}
-have_backend () {
- echo "$trace_backends" | grep "$1" >/dev/null
-}
-
glob() {
eval test -z '"${1#'"$2"'}"'
}
esac
##########################################
-# check if we have posix_syslog
-
-posix_syslog=no
-cat > $TMPC << EOF
-#include <syslog.h>
-int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
-EOF
-if compile_prog "" "" ; then
- posix_syslog=yes
-fi
-
-##########################################
-# check if trace backend exists
-
-$python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends > /dev/null 2> /dev/null
-if test "$?" -ne 0 ; then
- error_exit "invalid trace backends" \
- "Please choose supported trace backends."
-fi
-
-##########################################
-# For 'ust' backend, test if ust headers are present
-if have_backend "ust"; then
- if $pkg_config lttng-ust --exists; then
- lttng_ust_libs=$($pkg_config --libs lttng-ust)
- else
- error_exit "Trace backend 'ust' missing lttng-ust header files"
- fi
-fi
-
-##########################################
-# For 'dtrace' backend, test if 'dtrace' command is present
-if have_backend "dtrace"; then
- if ! has 'dtrace' ; then
- error_exit "dtrace command is not found in PATH $PATH"
- fi
- trace_backend_stap="no"
- if has 'stap' ; then
- trace_backend_stap="yes"
-
- # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
- # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
- # instead. QEMU --enable-modules depends on this because the SystemTap
- # semaphores are linked into the main binary and not the module's shared
- # object.
- QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
- fi
-fi
-
-##########################################
# check and set a backend for coroutine
# We prefer ucontext, but it's not always possible. The fallback
echo 'CONFIG_TPM=y' >> $config_host_mak
fi
-echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
-if have_backend "nop"; then
- echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
-fi
-if have_backend "simple"; then
- echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
-fi
-if have_backend "log"; then
- echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
-fi
-if have_backend "ust"; then
- echo "CONFIG_TRACE_UST=y" >> $config_host_mak
- echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
-fi
-if have_backend "dtrace"; then
- echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
- if test "$trace_backend_stap" = "yes" ; then
- echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
- fi
-fi
-if have_backend "ftrace"; then
- if test "$linux" = "yes" ; then
- echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
- else
- feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
- fi
-fi
-if have_backend "syslog"; then
- if test "$posix_syslog" = "yes" ; then
- echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
- else
- feature_not_found "syslog(trace backend)" "syslog not available"
- fi
-fi
-echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
-
if test "$rdma" = "yes" ; then
echo "CONFIG_RDMA=y" >> $config_host_mak
echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
$(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
-Dalsa=$alsa -Dcoreaudio=$coreaudio -Ddsound=$dsound -Djack=$jack -Doss=$oss \
-Dpa=$pa -Daudio_drv_list=$audio_drv_list -Dtcg_interpreter=$tcg_interpreter \
+ -Dtrace_backends=$trace_backends -Dtrace_file=$trace_file \
$cross_arg \
"$PWD" "$source_path"
'qemu-nbd.8': (have_tools ? 'man8' : ''),
'qemu-pr-helper.8': (have_tools ? 'man8' : ''),
'qemu-storage-daemon.1': (have_tools ? 'man1' : ''),
- 'qemu-trace-stap.1': (config_host.has_key('CONFIG_TRACE_SYSTEMTAP') ? 'man1' : ''),
+ 'qemu-trace-stap.1': (stap.found() ? 'man1' : ''),
'virtfs-proxy-helper.1': (have_virtfs_proxy_helper ? 'man1' : ''),
'virtiofsd.1': (have_virtiofsd ? 'man1' : ''),
'qemu.1': 'man1',
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 #
##################
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
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
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)
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
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',
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},
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')}
description: 'Set audio driver list')
option('fuzzing_engine', type : 'string', value : '',
description: 'fuzzing engine library for OSS-Fuzz')
+option('trace_file', type: 'string', value: 'trace',
+ description: 'Trace file prefix for simple backend')
option('docs', type : 'feature', value : 'auto',
description: 'Documentations build support')
option('fuse_lseek', type : 'feature', value : 'auto',
description: 'SEEK_HOLE/SEEK_DATA support for FUSE exports')
+option('trace_backends', type: 'array', value: ['log'],
+ choices: ['dtrace', 'ftrace', 'log', 'nop', 'simple', 'syslog', 'ust'],
+ description: 'Set available tracing backends')
+
option('alsa', type: 'feature', value: 'auto',
description: 'ALSA sound support')
option('coreaudio', type: 'feature', value: 'auto',
-if 'CONFIG_TRACE_SYSTEMTAP' in config_host
+if stap.found()
install_data('qemu-trace-stap', install_dir: get_option('bindir'))
endif
specific_ss.add(files('control-target.c'))
trace_events_files = []
-dtrace = find_program('dtrace', required: 'CONFIG_TRACE_DTRACE' in config_host)
foreach dir : [ '.' ] + trace_events_subdirs
trace_events_file = meson.project_source_root() / dir / 'trace-events'
trace_events_files += [ trace_events_file ]
input: trace_events_file,
command: [ tracetool, group, '--format=c', '@INPUT@', '@OUTPUT@' ],
depend_files: tracetool_depends)
- if 'CONFIG_TRACE_UST' in config_host
+ if 'ust' in get_option('trace_backends')
trace_ust_h = custom_target(fmt.format('trace-ust', 'h'),
output: fmt.format('trace-ust', 'h'),
input: trace_events_file,
genh += trace_ust_h
endif
trace_ss.add(trace_h, trace_c)
- if 'CONFIG_TRACE_DTRACE' in config_host
+ if 'dtrace' in get_option('trace_backends')
trace_dtrace = custom_target(fmt.format('trace-dtrace', 'dtrace'),
output: fmt.format('trace-dtrace', 'dtrace'),
input: trace_events_file,
specific_ss.add(when: 'CONFIG_TCG', if_true: gen)
endforeach
-if 'CONFIG_TRACE_UST' in config_host
+if 'ust' in get_option('trace_backends')
trace_ust_all_h = custom_target('trace-ust-all.h',
output: 'trace-ust-all.h',
input: trace_events_files,
genh += trace_ust_all_h
endif
-trace_ss.add(when: 'CONFIG_TRACE_SIMPLE', if_true: files('simple.c'))
-trace_ss.add(when: 'CONFIG_TRACE_FTRACE', if_true: files('ftrace.c'))
+if 'simple' in get_option('trace_backends')
+ trace_ss.add(files('simple.c'))
+endif
+if 'ftrace' in get_option('trace_backends')
+ trace_ss.add(files('ftrace.c'))
+endif
trace_ss.add(files('control.c'))
trace_ss.add(files('qmp.c'))