link mode: slbt_create_library_wrapper(): initial implementation.

3 files changed, 165 insertions, 105 deletions

diff --git a/src/internal/slibtool_libmeta_impl.c b/src/internal/slibtool_libmeta_impl.c
new file mode 100644
index 0000000..f08aa94
--- /dev/null
+++ b/src/internal/slibtool_libmeta_impl.c
@@ -0,0 +1,147 @@
+/*******************************************************************/
+/*  slibtool: a skinny libtool implementation, written in C        */
+/*  Copyright (C) 2016  Z. Gilboa                                  */
+/*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <slibtool/slibtool.h>
+#include "slibtool_metafile_impl.h"
+
+static int  slbt_create_default_library_wrapper(
+	const struct slbt_driver_ctx *	dctx,
+	struct slbt_exec_ctx *		ectx,
+	char *				arname,
+	char *				soname,
+	char *				soxyz,
+	char *				solnk)
+{
+	int					ret;
+	FILE *					fout;
+	const char *				header;
+	const char *				base;
+	bool					fnover;
+	bool					fvernum;
+	int					current;
+	int					revision;
+	int					age;
+	const struct slbt_source_version *	verinfo;
+
+	(void)ectx;
+
+	/* create */
+	if (!(fout = fopen(dctx->cctx->output,"w")))
+		return -1;
+
+	/* version info */
+	current  = 0;
+	age      = 0;
+	revision = 0;
+
+	if (dctx->cctx->verinfo.verinfo)
+		sscanf(dctx->cctx->verinfo.verinfo,"%d:%d:%d",
+			&current,&revision,&age);
+
+	fnover  = !!(dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION);
+	fvernum = !!(dctx->cctx->verinfo.vernumber);
+	verinfo = slbt_source_version();
+
+	/* wrapper header */
+	header = "libtool compatible library wrapper\n";
+	base   = "";
+
+	/* wrapper content */
+	ret = fprintf(fout,
+		"# %s%s"
+		"# Generated by %s (slibtool %d.%d.%d)\n"
+		"# [commit reference: %s]\n\n"
+
+		"dlname='%s'\n"
+		"library_names='%s %s %s'\n"
+		"old_library='%s'\n\n"
+
+		"inherited_linker_flags='%s'\n"
+		"dependency_libs='%s'\n"
+		"weak_library_names='%s'\n\n"
+
+		"current=%d\n"
+		"age=%d\n"
+		"revision=%d\n\n"
+
+		"installed=%s\n"
+		"shouldnotlink=%s\n\n"
+
+		"dlopen='%s'\n"
+		"dlpreopen='%s'\n\n"
+
+		"libdir='%s'\n",
+
+		/* wrapper header */
+		base,header,
+
+		/* nickname, verinfo */
+		dctx->program,
+		verinfo->major,verinfo->minor,verinfo->revision,
+		verinfo->commit,
+
+		/* dlname */
+		fnover ? solnk : soxyz,
+
+		/* library_names */
+		fnover ? solnk : soxyz,
+		fnover ? solnk : soname,
+		solnk,
+
+		/* old_library */
+		arname,
+
+		/* inherited_linker_flags, dependency_libs, weak_library_names */
+		"","","",
+
+		/* current, age, revision */
+		fvernum ? dctx->cctx->verinfo.major : current,
+		fvernum ? dctx->cctx->verinfo.minor : age,
+		fvernum ? dctx->cctx->verinfo.major : revision,
+
+		/* installed, shouldnotlink */
+		"no","no",
+
+		/* dlopen, dlpreopen */
+		"","",
+
+		/* libdir */
+		dctx->cctx->rpath ? dctx->cctx->rpath : "");
+
+	return (ret <= 0) || fclose(fout)
+		? -1 : 0;
+}
+
+static int  slbt_create_compatible_library_wrapper(
+	const struct slbt_driver_ctx *	dctx,
+	struct slbt_exec_ctx *		ectx,
+	char *				arname,
+	char *				soname,
+	char *				soxyz,
+	char *				solnk)
+{
+	/* awaiting submission */
+	return slbt_create_default_library_wrapper(
+		dctx,ectx,arname,soxyz,soname,solnk);
+}
+
+int  slbt_create_library_wrapper(
+	const struct slbt_driver_ctx *	dctx,
+	struct slbt_exec_ctx *		ectx,
+	char *				arname,
+	char *				soname,
+	char *				soxyz,
+	char *				solnk)
+{
+	if (dctx->cctx->drvflags & SLBT_DRIVER_LEGABITS)
+		return slbt_create_compatible_library_wrapper(
+			dctx,ectx,arname,soxyz,soname,solnk);
+	else
+		return slbt_create_default_library_wrapper(
+			dctx,ectx,arname,soxyz,soname,solnk);
+}
diff --git a/src/internal/slibtool_metafile_impl.h b/src/internal/slibtool_metafile_impl.h
index 9a56db2..8b24d8f 100644
--- a/src/internal/slibtool_metafile_impl.h
+++ b/src/internal/slibtool_metafile_impl.h
@@ -9,3 +9,11 @@
 int  slbt_create_object_wrapper(
 	const struct slbt_driver_ctx *	dctx,
 	struct slbt_exec_ctx *		ectx);
+
+int  slbt_create_library_wrapper(
+	const struct slbt_driver_ctx *	dctx,
+	struct slbt_exec_ctx *		ectx,
+	char *				arname,
+	char *				soname,
+	char *				soxyz,
+	char *				solnk);
diff --git a/src/logic/slbt_exec_link.c b/src/logic/slbt_exec_link.c
index 9e88420..4c78757 100644
--- a/src/logic/slbt_exec_link.c
+++ b/src/logic/slbt_exec_link.c
@@ -15,6 +15,7 @@
 #include <slibtool/slibtool.h>
 #include "slibtool_spawn_impl.h"
 #include "slibtool_mkdir_impl.h"
+#include "slibtool_metafile_impl.h"
 #include "slibtool_readlink_impl.h"
 #include "slibtool_symlink_impl.h"
 
@@ -1054,23 +1055,14 @@ int slbt_exec_link(
 {
 	int			ret;
 	const char *		output;
-	const char *		header;
-	const char *		base;
 	char *			dot;
-	FILE *			fout;
 	struct slbt_exec_ctx *	actx;
 	bool			fpic;
 	bool			fstaticonly;
-	bool			fnover;
-	bool			fvernum;
-	int			current;
-	int			revision;
-	int			age;
 	char			soname[PATH_MAX];
 	char			soxyz [PATH_MAX];
 	char			solnk [PATH_MAX];
 	char			arname[PATH_MAX];
-	const struct slbt_source_version * verinfo;
 
 	/* dry run */
 	if (dctx->cctx->drvflags & SLBT_DRIVER_DRY_RUN)
@@ -1251,106 +1243,20 @@ int slbt_exec_link(
 		return 0;
 	}
 
-	/* hey, yo, let's rap it up */
-	if (!(fout = fopen(output,"w"))) {
+	/* library wrapper */
+	if (slbt_create_library_wrapper(
+			dctx,ectx,
+			arname,soname,soxyz,solnk)) {
 		slbt_free_exec_ctx(actx);
 		return -1;
 	}
 
-	/* compatible library wrapper */
-	current  = 0;
-	age      = 0;
-	revision = 0;
-
-	if (dctx->cctx->verinfo.verinfo)
-		sscanf(dctx->cctx->verinfo.verinfo,"%d:%d:%d",
-			&current,&revision,&age);
-
-	fnover  = !!(dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION);
-	fvernum = !!(dctx->cctx->verinfo.vernumber);
-	verinfo = slbt_source_version();
-
-	/* wrapper header */
-	if (dctx->cctx->drvflags & SLBT_DRIVER_LEGABITS) {
-		header = " - a libtool library file\n";
-
-		if ((base = strrchr(output,'/')))
-			base++;
-		else
-			base = output;
-	} else {
-		header = "libtool compatible library wrapper\n";
-		base   = "";
-	}
-
-	ret = fprintf(fout,
-		"# %s%s"
-		"# Generated by %s (slibtool %d.%d.%d)\n"
-		"# [commit reference: %s]\n\n"
-
-		"dlname='%s'\n"
-		"library_names='%s %s %s'\n"
-		"old_library='%s'\n\n"
-
-		"inherited_linker_flags='%s'\n"
-		"dependency_libs='%s'\n"
-		"weak_library_names='%s'\n\n"
-
-		"current=%d\n"
-		"age=%d\n"
-		"revision=%d\n\n"
-
-		"installed=%s\n"
-		"shouldnotlink=%s\n\n"
-
-		"dlopen='%s'\n"
-		"dlpreopen='%s'\n\n"
-
-		"libdir='%s'\n",
-
-		/* wrapper header */
-		base,header,
-
-		/* nickname, verinfo */
-		dctx->program,
-		verinfo->major,verinfo->minor,verinfo->revision,
-		verinfo->commit,
-
-		/* dlname */
-		fnover ? solnk : soxyz,
-
-		/* library_names */
-		fnover ? solnk : soxyz,
-		fnover ? solnk : soname,
-		solnk,
-
-		/* old_library */
-		arname,
-
-		/* inherited_linker_flags, dependency_libs, weak_library_names */
-		"","","",
-
-		/* current, age, revision */
-		fvernum ? dctx->cctx->verinfo.major : current,
-		fvernum ? dctx->cctx->verinfo.minor : age,
-		fvernum ? dctx->cctx->verinfo.major : revision,
-
-		/* installed, shouldnotlink */
-		"no","no",
-
-		/* dlopen, dlpreopen */
-		"","",
-
-		/* libdir */
-		dctx->cctx->rpath ? dctx->cctx->rpath : "");
-
 	/* wrapper symlink */
-	if (ret > 0)
-		ret = (slbt_create_symlink(
-				dctx,ectx,
-				output,
-				ectx->lafilename,
-				true));
+	ret = (slbt_create_symlink(
+			dctx,ectx,
+			output,
+			ectx->lafilename,
+			true));
 
 	/* .lai wrapper symlink */
 	if (ret == 0)
@@ -1361,7 +1267,6 @@ int slbt_exec_link(
 				true));
 
 	/* all done */
-	fclose(fout);
 	slbt_free_exec_ctx(actx);
 
 	return ret;