Show lib versions in the debug output.

Author: uwehermann

configure.ac

@@ -136,6 +136,9 @@ PKG_CHECK_MODULES([TESTS], [$SRD_PKGLIBS_TESTS glib-2.0 $SRD_PKGLIBS])
 
 srd_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`
 
+AC_DEFINE_UNQUOTED([CONF_HOST], ["$host"],
+        [The canonical host libsigrokdecode will run on.])
+
 AC_CONFIG_FILES([Makefile libsigrokdecode.pc])
 
 AC_OUTPUT

libsigrokdecode.h

@@ -363,6 +363,8 @@ SRD_API int srd_lib_version_current_get(void);
 SRD_API int srd_lib_version_revision_get(void);
 SRD_API int srd_lib_version_age_get(void);
 SRD_API const char *srd_lib_version_string_get(void);
+SRD_API GSList *srd_buildinfo_libs_get(void);
+SRD_API char *srd_buildinfo_host_get(void);
 
 #include "version.h"
 

srd.c

@@ -112,6 +112,38 @@ static int searchpath_add_xdg_dir(const char *datadir)
 	return ret;
 }
 
+static void print_versions(void)
+{
+	GString *s;
+	GSList *l, *l_orig, *m;
+	char *str;
+	const char *lib, *version;
+
+	srd_dbg("libsigrokdecode %s/%s (rt: %s/%s).",
+		SRD_PACKAGE_VERSION_STRING, SRD_LIB_VERSION_STRING,
+		srd_package_version_string_get(), srd_lib_version_string_get());
+
+	s = g_string_sized_new(200);
+	g_string_append(s, "Libs: ");
+	l_orig = srd_buildinfo_libs_get();
+	for (l = l_orig; l; l = l->next) {
+		m = l->data;
+		lib = m->data;
+		version = m->next->data;
+		g_string_append_printf(s, "%s %s, ", lib, version);
+		g_slist_free_full(m, g_free);
+	}
+	g_slist_free(l_orig);
+	s->str[s->len - 2] = '.';
+	s->str[s->len - 1] = '\0';
+	srd_dbg("%s", s->str);
+	g_string_free(s, TRUE);
+
+	str = srd_buildinfo_host_get();
+	srd_dbg("Host: %s.", str);
+	g_free(str);
+}
+
 /**
  * Initialize libsigrokdecode.
  *
@@ -151,6 +183,8 @@ SRD_API int srd_init(const char *path)
 		return SRD_ERR;
 	}
 
+	print_versions();
+
 	srd_dbg("Initializing libsigrokdecode.");
 
 	/* Add our own module to the list of built-in modules. */

version.c

@@ -18,6 +18,7 @@
  */
 
 #include <config.h>
+#include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
 #include "libsigrokdecode.h"
 
 /**
@@ -145,4 +146,34 @@ SRD_API const char *srd_lib_version_string_get(void)
 	return SRD_LIB_VERSION_STRING;
 }
 
+SRD_API GSList *srd_buildinfo_libs_get(void)
+{
+	GSList *l = NULL, *m = NULL;
+
+	m = g_slist_append(NULL, g_strdup("glib"));
+	m = g_slist_append(m, g_strdup_printf("%d.%d.%d (rt: %d.%d.%d/%d:%d)",
+		GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION,
+		glib_major_version, glib_minor_version, glib_micro_version,
+		glib_binary_age, glib_interface_age));
+	l = g_slist_append(l, m);
+
+	m = g_slist_append(NULL, g_strdup("Python"));
+	m = g_slist_append(m, g_strdup_printf("%s / 0x%x (API %s, ABI %s)",
+		PY_VERSION, PY_VERSION_HEX, PYTHON_API_STRING, PYTHON_ABI_STRING));
+	l = g_slist_append(l, m);
+
+	return l;
+}
+
+SRD_API char *srd_buildinfo_host_get(void)
+{
+	return g_strdup_printf("%s, %s-endian", CONF_HOST,
+#ifdef WORDS_BIGENDIAN
+	"big"
+#else
+	"little"
+#endif
+	);
+}
+
 /** @} */