Blame src/internal/slibtool_libmeta_impl.c

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/*******************************************************************/
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/*  slibtool: a skinny libtool implementation, written in C        */
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/*  Copyright (C) 2016--2017  Z. Gilboa                            */
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/*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
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/*******************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdbool.h>
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#include <slibtool/slibtool.h>
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#include "slibtool_errinfo_impl.h"
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#include "slibtool_metafile_impl.h"
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static int  slbt_create_default_library_wrapper(
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	const struct slbt_driver_ctx *	dctx,
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	struct slbt_exec_ctx *		ectx,
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	char *				arname,
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	char *				soname,
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	char *				soxyz,
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	char *				solnk)
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{
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	int					ret;
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	FILE *					fout;
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	const char *				header;
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	const char *				base;
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	bool					fnover;
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	bool					fvernum;
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	int					current;
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	int					revision;
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	int					age;
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	const struct slbt_source_version *	verinfo;
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	(void)ectx;
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	/* create */
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	if (!(fout = fopen(dctx->cctx->output,"w")))
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		return SLBT_SYSTEM_ERROR(dctx);
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	/* version info */
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	current  = 0;
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	age      = 0;
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	revision = 0;
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	if (dctx->cctx->verinfo.verinfo)
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		sscanf(dctx->cctx->verinfo.verinfo,"%d:%d:%d",
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			&current,&revision,&age;;
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	fnover  = !!(dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION);
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	fvernum = !!(dctx->cctx->verinfo.vernumber);
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	verinfo = slbt_source_version();
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	/* wrapper header */
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	header = "libtool compatible library wrapper\n";
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	base   = "";
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	/* wrapper content */
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	ret = fprintf(fout,
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		"# %s%s"
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		"# Generated by %s (slibtool %d.%d.%d)\n"
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		"# [commit reference: %s]\n\n"
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		"dlname='%s'\n"
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		"library_names='%s %s %s'\n"
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		"old_library='%s'\n\n"
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		"inherited_linker_flags='%s'\n"
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		"dependency_libs='%s'\n"
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		"weak_library_names='%s'\n\n"
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		"current=%d\n"
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		"age=%d\n"
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		"revision=%d\n\n"
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		"installed=%s\n"
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		"shouldnotlink=%s\n\n"
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		"dlopen='%s'\n"
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		"dlpreopen='%s'\n\n"
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		"libdir='%s'\n",
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		/* wrapper header */
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		base,header,
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		/* nickname, verinfo */
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		dctx->program,
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		verinfo->major,verinfo->minor,verinfo->revision,
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		verinfo->commit,
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		/* dlname */
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		fnover ? solnk : soxyz,
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		/* library_names */
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		fnover ? solnk : soxyz,
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		fnover ? solnk : soname,
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		solnk,
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		/* old_library */
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		arname,
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		/* inherited_linker_flags, dependency_libs, weak_library_names */
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		"","","",
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		/* current, age, revision */
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		fvernum ? dctx->cctx->verinfo.major : current,
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		fvernum ? dctx->cctx->verinfo.minor : age,
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		fvernum ? dctx->cctx->verinfo.major : revision,
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		/* installed, shouldnotlink */
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		"no","no",
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		/* dlopen, dlpreopen */
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		"","",
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		/* libdir */
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		dctx->cctx->rpath ? dctx->cctx->rpath : "");
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	return (ret <= 0) || fclose(fout)
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		? SLBT_SYSTEM_ERROR(dctx)
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		: 0;
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}
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static int  slbt_create_compatible_library_wrapper(
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	const struct slbt_driver_ctx *	dctx,
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	struct slbt_exec_ctx *		ectx,
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	char *				arname,
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	char *				soname,
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	char *				soxyz,
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	char *				solnk)
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{
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	int					ret;
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	FILE *					fout;
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	const char *				base;
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	bool					fnover;
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	bool					fvernum;
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	int					current;
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	int					revision;
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	int					age;
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	const struct slbt_source_version *	verinfo;
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	(void)ectx;
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	/* create */
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	if (!(fout = fopen(dctx->cctx->output,"w")))
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		return SLBT_SYSTEM_ERROR(dctx);
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	/* version info */
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	current  = 0;
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	age      = 0;
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	revision = 0;
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	/* wrapper header */
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	if ((base = strrchr(dctx->cctx->output,'/'))) {
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		base++;
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	} else {
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		base = dctx->cctx->output;
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	}
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	if (dctx->cctx->verinfo.verinfo)
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		sscanf(dctx->cctx->verinfo.verinfo,"%d:%d:%d",
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			&current,&revision,&age;;
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	fnover  = !!(dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION);
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	fvernum = !!(dctx->cctx->verinfo.vernumber);
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	verinfo = slbt_source_version();
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	/* wrapper content */
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	ret = fprintf(fout,
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		"# %s - a libtool library file\n"
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		"# Generated by %s (slibtool %d.%d.%d)\n"
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		"# [commit reference: %s]\n"
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		"#\n"
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		"# Please DO NOT delete this file!\n"
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		"# It is necessary for linking the library.\n\n"
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		"# The name that we can dlopen(3).\n"
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		"dlname='%s'\n\n"
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		"# Names of this library.\n"
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		"library_names='%s %s %s'\n\n"
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		"# The name of the static archive.\n"
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		"old_library='%s'\n\n"
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		"# Linker flags that can not go in dependency_libs.\n"
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		"inherited_linker_flags='%s'\n\n"
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		"# Libraries that this one depends upon.\n"
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		"dependency_libs='%s'\n\n"
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		"# Names of additional weak libraries provided by this library\n"
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		"weak_library_names='%s'\n\n"
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		"# Version information for %s%s.\n"
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		"current=%d\n"
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		"age=%d\n"
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		"revision=%d\n\n"
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		"# Is this an already installed library?\n"
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		"installed=%s\n\n"
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		"# Should we warn about portability when linking against -modules?\n"
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		"shouldnotlink=%s\n\n"
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		"# Files to dlopen/dlpreopen\n"
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		"dlopen='%s'\n"
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		"dlpreopen='%s'\n\n"
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		"# Directory that this library needs to be installed in:\n"
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		"libdir='%s'\n",
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		/* wrapper header */
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		base,
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		/* nickname, verinfo */
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		dctx->program,
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		verinfo->major,verinfo->minor,verinfo->revision,
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		verinfo->commit,
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		/* dlname */
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		fnover ? solnk : soxyz,
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		/* library_names */
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		fnover ? solnk : soxyz,
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		fnover ? solnk : soname,
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		solnk,
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		/* old_library */
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		arname,
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		/* inherited_linker_flags, dependency_libs, weak_library_names */
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		"","","",
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		/* version information for */
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		(dctx->cctx->drvflags & SLBT_DRIVER_MODULE)
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		    ? "" : dctx->cctx->settings.dsoprefix,
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		dctx->cctx->libname,
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		/* current, age, revision */
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		fvernum ? dctx->cctx->verinfo.major : current,
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		fvernum ? dctx->cctx->verinfo.minor : age,
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		fvernum ? dctx->cctx->verinfo.major : revision,
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		/* installed, shouldnotlink */
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		"no","no",
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		/* dlopen, dlpreopen */
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		"","",
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		/* libdir */
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		dctx->cctx->rpath ? dctx->cctx->rpath : "");
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	return (ret <= 0) || fclose(fout)
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		? SLBT_SYSTEM_ERROR(dctx)
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		: 0;
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}
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int  slbt_create_library_wrapper(
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	const struct slbt_driver_ctx *	dctx,
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	struct slbt_exec_ctx *		ectx,
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	char *				arname,
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	char *				soname,
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	char *				soxyz,
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	char *				solnk)
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{
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	if (dctx->cctx->drvflags & SLBT_DRIVER_LEGABITS)
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		return slbt_create_compatible_library_wrapper(
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			dctx,ectx,arname,soxyz,soname,solnk);
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	else
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		return slbt_create_default_library_wrapper(
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			dctx,ectx,arname,soxyz,soname,solnk);
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}