Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Meson conversions + introspection-based command line parser

# gpg: Signature made Thu 14 Oct 2021 12:51:54 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]

* remotes/bonzini/tags/for-upstream: (26 commits)
  configure: automatically parse command line for meson -D options
  meson-buildoptions: include list of tracing backends
  configure: prepare for auto-generated option parsing
  configure: accept "internal" for --enable-capstone/slirp/fdt
  configure: remove deprecated --{enable, disable}-git-update
  configure, meson: move more compiler checks to Meson
  configure: remove obsolete Solaris ar check
  configure, meson: move Spice configure handling to meson
  configure, meson: move netmap detection to meson
  configure, meson: move vde detection to meson
  configure, meson: move libaio check to meson.build
  configure, meson: move pthread_setname_np checks to Meson
  configure, meson: move remaining HAVE_* compiler tests to Meson
  meson: HAVE_GDB_BIN is not used by C code
  configure, meson: remove CONFIG_GCOV from config-host.mak
  configure, meson: get HOST_WORDS_BIGENDIAN via the machine object
  configure, meson: move CONFIG_HOST_DSOSUF to Meson
  trace: move configuration from configure to Meson
  trace: simple: pass trace_file unmodified to config-host.h
  configure, meson: move fuzzing configuration to Meson
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

2 files changed, 10 insertions, 7 deletions

diff --git a/trace/meson.build b/trace/meson.build
index b8f95de200..573dd699c6 100644
--- a/trace/meson.build
+++ b/trace/meson.build
@@ -2,7 +2,6 @@
 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 ]
@@ -21,7 +20,7 @@ foreach dir : [ '.' ] + trace_events_subdirs
                           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,
@@ -31,7 +30,7 @@ foreach dir : [ '.' ] + trace_events_subdirs
     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,
@@ -76,7 +75,7 @@ foreach d : [
   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,
@@ -91,7 +90,11 @@ if 'CONFIG_TRACE_UST' in config_host
   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'))
diff --git a/trace/simple.c b/trace/simple.c
index ac499edee0..18af590cf7 100644
--- a/trace/simple.c
+++ b/trace/simple.c
@@ -364,7 +364,7 @@ void st_set_trace_file(const char *file)
 
     if (!file) {
         /* Type cast needed for Windows where getpid() returns an int. */
-        trace_file_name = g_strdup_printf(CONFIG_TRACE_FILE, (pid_t)getpid());
+        trace_file_name = g_strdup_printf(CONFIG_TRACE_FILE "-" FMT_pid, (pid_t)getpid());
     } else {
         trace_file_name = g_strdup_printf("%s", file);
     }