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Blame src/logic/slbt_exec_link.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 <stdlib.h>
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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 <fcntl.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <slibtool/slibtool.h>
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#include "slibtool_spawn_impl.h"
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#include "slibtool_mkdir_impl.h"
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#include "slibtool_errinfo_impl.h"
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#include "slibtool_metafile_impl.h"
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#include "slibtool_readlink_impl.h"
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#include "slibtool_symlink_impl.h"
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struct slbt_deps_meta {
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	char ** altv;
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	char *	args;
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	int	depscnt;
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	int	infolen;
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};
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/*******************************************************************/
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/*                                                                 */
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/* -o <ltlib>  switches              input   result                */
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/* ----------  --------------------- -----   ------                */
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/* libfoo.a    [-shared|-static]     bar.lo  libfoo.a              */
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/*                                                                 */
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/* ar crs libfoo.a bar.o                                           */
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/*                                                                 */
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/*******************************************************************/
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/*******************************************************************/
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/*                                                                 */
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/* -o <ltlib>  switches              input   result                */
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/* ----------  --------------------- -----   ------                */
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/* libfoo.la   -shared               bar.lo  libfoo.la             */
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/*                                           .libs/libfoo.a        */
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/*                                           .libs/libfoo.la (lnk) */
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/*                                                                 */
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/* ar crs .libs/libfoo.a .libs/bar.o                               */
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/* (generate libfoo.la)                                            */
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/* ln -s ../libfoo.la .libs/libfoo.la                              */
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/*                                                                 */
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/*******************************************************************/
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/*******************************************************************/
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/*                                                                 */
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/* -o <ltlib>  switches              input   result                */
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/* ----------  --------------------- -----   ------                */
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/* libfoo.la   -static               bar.lo  libfoo.la             */
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/*                                           .libs/libfoo.a        */
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/*                                           .libs/libfoo.la (lnk) */
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/*                                                                 */
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/* ar crs .libs/libfoo.a bar.o                                     */
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/* (generate libfoo.la)                                            */
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/* ln -s ../libfoo.la .libs/libfoo.la                              */
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/*                                                                 */
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/*******************************************************************/
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static int slbt_exec_link_exit(
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	struct slbt_deps_meta *	depsmeta,
3be47d
	int			ret)
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{
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	if (depsmeta->altv)
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		free(depsmeta->altv);
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3be47d
	if (depsmeta->args)
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		free(depsmeta->args);
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3be47d
	return ret;
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}
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static int slbt_get_deps_meta(
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	const struct slbt_driver_ctx *	dctx,
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	char *			libfilename,
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	struct slbt_deps_meta *	depsmeta)
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{
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	int		ret;
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	FILE *		fdeps;
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	struct stat	st;
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	char *		deplib;
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	char		depfile[4*PATH_MAX];
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	char *		deplibs = depfile;
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	char *		base;
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	size_t		libexlen;
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9c9f28
	(void)dctx;
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	/* -rpath */
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	if ((size_t)snprintf(depfile,sizeof(depfile),"%s.slibtool.rpath",
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				libfilename)
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			>= sizeof(depfile))
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		return SLBT_BUFFER_ERROR(dctx);
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0f5ca7
	if (!(lstat(depfile,&st))) {
0f5ca7
		/* -Wl,%s */
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		depsmeta->infolen += st.st_size + 4;
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		depsmeta->infolen++;
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	}
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	/* .deps */
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	if ((size_t)snprintf(depfile,sizeof(depfile),"%s.slibtool.deps",
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				libfilename)
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			>= sizeof(depfile))
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		return SLBT_BUFFER_ERROR(dctx);
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	if ((stat(depfile,&st)))
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		return SLBT_SYSTEM_ERROR(dctx);
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	if (!(fdeps = fopen(depfile,"r")))
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		return SLBT_SYSTEM_ERROR(dctx);
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	if ((size_t)st.st_size >= sizeof(depfile))
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		if (!(deplibs = malloc(st.st_size+1))) {
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			fclose(fdeps);
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			return SLBT_SYSTEM_ERROR(dctx);
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		}
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	depsmeta->infolen += st.st_size;
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	depsmeta->infolen++;
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	deplib = st.st_size
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		? fgets(deplibs,st.st_size+1,fdeps)
e64108
		: 0;
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	if ((base = strrchr(libfilename,'/')))
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		libexlen = strlen(depfile) + base - libfilename + 2;
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	else
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		libexlen = strlen(depfile) + 2;
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	for (; deplib; ) {
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		depsmeta->infolen += libexlen;
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		depsmeta->depscnt++;
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		deplib = fgets(deplibs,st.st_size+1,fdeps);
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	}
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085f3a
	if (deplibs != depfile)
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		free(deplibs);
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9c9f28
	ret = ferror(fdeps) ? SLBT_FILE_ERROR(dctx) : 0;
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	fclose(fdeps);
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	return ret;
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}
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static bool slbt_adjust_input_argument(
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	char *		arg,
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	const char *	osuffix,
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	const char *	asuffix,
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	bool		fpic)
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{
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	char *	slash;
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	char *	dot;
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	char	base[PATH_MAX];
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5cc3b3
	if (*arg == '-')
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		return false;
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5cc3b3
	if (!(dot = strrchr(arg,'.')))
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		return false;
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14d60a
	if (strcmp(dot,osuffix))
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		return false;
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5cc3b3
	if (fpic) {
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		if ((slash = strrchr(arg,'/')))
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			slash++;
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		else
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			slash = arg;
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53aa85
		if ((size_t)snprintf(base,sizeof(base),"%s",
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				slash) >= sizeof(base))
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			return false;
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53aa85
		sprintf(slash,".libs/%s",base);
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		dot = strrchr(arg,'.');
5cc3b3
	}
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	strcpy(dot,asuffix);
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	return true;
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}
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static int slbt_adjust_linker_argument(
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	const struct slbt_driver_ctx *	dctx,
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	char *		arg,
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	bool		fpic,
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	const char *	dsosuffix,
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	const char *	arsuffix,
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	struct slbt_deps_meta * depsmeta)
b3940a
{
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	int	fdlib;
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	char *	slash;
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	char *	dot;
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	char	base[PATH_MAX];
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	char	slnk[PATH_MAX];
b3940a
b3940a
	if (*arg == '-')
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		return 0;
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b3940a
	if (!(dot = strrchr(arg,'.')))
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		return 0;
b3940a
b3940a
	if (strcmp(dot,".la"))
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		return 0;
b3940a
b3940a
	if (fpic) {
b3940a
		if ((slash = strrchr(arg,'/')))
b3940a
			slash++;
b3940a
		else
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			slash = arg;
b3940a
b3940a
		if ((size_t)snprintf(base,sizeof(base),"%s",
b3940a
				slash) >= sizeof(base))
afaba2
			return 0;
b3940a
b3940a
		sprintf(slash,".libs/%s",base);
b3940a
		dot = strrchr(arg,'.');
b3940a
	}
b3940a
b3940a
	/* shared library dependency? */
b3940a
	if (fpic) {
b3940a
		sprintf(dot,"%s",dsosuffix);
b3940a
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		if (!slbt_readlink(arg,slnk,sizeof(slnk))
50b6ef
				&& !(strcmp(slnk,"/dev/null")))
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			sprintf(dot,"%s",arsuffix);
50b6ef
		else if ((fdlib = open(arg,O_RDONLY)) >= 0)
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			close(fdlib);
b3940a
		else
b3940a
			sprintf(dot,"%s",arsuffix);
b3940a
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		return slbt_get_deps_meta(dctx,arg,depsmeta);
b3940a
	}
b3940a
b3940a
	/* input archive */
b3940a
	sprintf(dot,"%s",arsuffix);
afaba2
	return 0;
b3940a
}
b3940a
2ef5be
static int slbt_exec_link_adjust_argument_vector(
2ef5be
	const struct slbt_driver_ctx *	dctx,
2ef5be
	struct slbt_exec_ctx *		ectx,
3be47d
	struct slbt_deps_meta *		depsmeta,
79c501
	const char *			cwd,
2ef5be
	bool				flibrary)
2ef5be
{
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	char ** carg;
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	char ** aarg;
738321
	char *	ldir;
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	char *	slash;
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	char *	mark;
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	char *	darg;
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	char *	dot;
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	char *	dep;
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	char *	base;
3be47d
	FILE *	fdeps;
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	char *	dpath;
94ae74
	bool	freqd;
3be47d
	int	argc;
2ef5be
	char	arg[PATH_MAX];
3be47d
	char	lib[PATH_MAX];
6fda2b
	char	depdir  [PATH_MAX];
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	char	rpathdir[PATH_MAX];
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	char	rpathlnk[PATH_MAX];
2ef5be
	bool	fwholearchive = false;
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	struct	stat st;
738321
	int	fd;
2ef5be
3be47d
	for (argc=0,carg=ectx->cargv; *carg; carg++)
3be47d
		argc++;
3be47d
3be47d
	if (!(depsmeta->args = calloc(1,depsmeta->infolen)))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
3be47d
3be47d
	argc *= 3;
3be47d
	argc += depsmeta->depscnt;
3be47d
3be47d
	if (!(depsmeta->altv = calloc(argc,sizeof(char *))))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
3be47d
2ef5be
	carg = ectx->cargv;
3be47d
	aarg = depsmeta->altv;
3be47d
	darg = depsmeta->args;
2ef5be
2ef5be
	for (; *carg; ) {
3be47d
		dpath = 0;
94ae74
		freqd = false;
3be47d
2ef5be
		if (!strcmp(*carg,"-Wl,--whole-archive"))
2ef5be
			fwholearchive = true;
2ef5be
		else if (!strcmp(*carg,"-Wl,--no-whole-archive"))
2ef5be
			fwholearchive = false;
2ef5be
2ef5be
2ef5be
df07fb
		/* output annotation */
df07fb
		if (carg == ectx->lout[0]) {
df07fb
			ectx->mout[0] = &aarg[0];
df07fb
			ectx->mout[1] = &aarg[1];
df07fb
		}
df07fb
df07fb
		/* argument translation */
738321
		mark = *carg;
738321
738321
		if ((mark[0] == '-') && (mark[1] == 'L')) {
738321
			if (mark[2]) {
738321
				ldir = &mark[2];
738321
			} else {
738321
				*aarg++ = *carg++;
738321
				ldir    = *carg;
738321
			}
738321
738321
			mark = ldir + strlen(ldir);
738321
738321
			if (mark[-1] == '/')
738321
				strcpy(mark,".libs");
738321
			else
738321
				strcpy(mark,"/.libs");
738321
738321
			if ((fd = open(ldir,O_DIRECTORY,0)) < 0)
738321
				*mark = 0;
738321
			else
738321
				close(fd);
738321
738321
			*aarg++ = *carg++;
738321
738321
		} else if (**carg == '-') {
2ef5be
			*aarg++ = *carg++;
2ef5be
2ef5be
		} else if (!(dot = strrchr(*carg,'.'))) {
2ef5be
			*aarg++ = *carg++;
2ef5be
2ef5be
		} else if (!(strcmp(dot,".a"))) {
2ef5be
			if (flibrary && !fwholearchive)
2ef5be
				*aarg++ = "-Wl,--whole-archive";
2ef5be
3be47d
			dpath = lib;
3be47d
			sprintf(lib,"%s.slibtool.deps",*carg);
2ef5be
			*aarg++ = *carg++;
2ef5be
2ef5be
			if (flibrary && !fwholearchive)
2ef5be
				*aarg++ = "-Wl,--no-whole-archive";
2ef5be
2ef5be
		} else if (strcmp(dot,dctx->cctx->settings.dsosuffix)) {
2ef5be
			*aarg++ = *carg++;
2ef5be
867d1e
		} else if (carg == ectx->lout[1]) {
867d1e
			/* ^^^hoppla^^^ */
867d1e
			*aarg++ = *carg++;
2ef5be
		} else {
0f5ca7
			/* -rpath */
0f5ca7
			sprintf(rpathlnk,"%s.slibtool.rpath",*carg);
0f5ca7
0f5ca7
			if (!(lstat(rpathlnk,&st))) {
0f5ca7
				if (slbt_readlink(
0f5ca7
						rpathlnk,\
0f5ca7
						rpathdir,
0f5ca7
						sizeof(rpathdir)))
9c9f28
					return SLBT_SYSTEM_ERROR(dctx);
0f5ca7
0f5ca7
				sprintf(darg,"-Wl,%s",rpathdir);
0f5ca7
				*aarg++ = "-Wl,-rpath";
0f5ca7
				*aarg++ = darg;
0f5ca7
				darg   += strlen(darg);
0f5ca7
				darg++;
0f5ca7
			}
0f5ca7
3be47d
			dpath = lib;
94ae74
			freqd = true;
3be47d
			sprintf(lib,"%s.slibtool.deps",*carg);
3be47d
2ef5be
			/* account for {'-','L','-','l'} */
2ef5be
			if ((size_t)snprintf(arg,sizeof(arg),"%s",
2ef5be
					*carg) >= (sizeof(arg) - 4))
9c9f28
				return SLBT_BUFFER_ERROR(dctx);
2ef5be
2ef5be
			if ((slash = strrchr(arg,'/'))) {
2ef5be
				sprintf(*carg,"-L%s",arg);
2ef5be
2ef5be
				mark   = strrchr(*carg,'/');
5b792c
				*mark  = 0;
2ef5be
5ee0d1
				if (ectx->fwrapper) {
5b792c
					*slash = 0;
5ee0d1
5ee0d1
					if (fprintf(ectx->fwrapper,
79c501
							"DL_PATH=\"$DL_PATH$COLON%s/%s\"\n"
5ee0d1
							"COLON=':'\n\n",
79c501
							cwd,arg) < 0)
9c9f28
						return SLBT_SYSTEM_ERROR(dctx);
5ee0d1
				}
5ee0d1
2ef5be
				*aarg++ = *carg++;
2ef5be
				*aarg++ = ++mark;
2ef5be
2ef5be
				++slash;
2ef5be
				slash += strlen(dctx->cctx->settings.dsoprefix);
2ef5be
2ef5be
				sprintf(mark,"-l%s",slash);
2ef5be
				dot  = strrchr(mark,'.');
5b792c
				*dot = 0;
2ef5be
			} else {
2ef5be
				*aarg++ = *carg++;
2ef5be
			}
2ef5be
		}
3be47d
3be47d
		if (dpath) {
ec6151
			if (!stat(dpath,&st) && (fdeps = fopen(dpath,"r"))) {
e64108
				dep = st.st_size
e64108
					? fgets(darg,st.st_size+1,fdeps)
e64108
					: 0;
3be47d
d6e753
				if (!(strncmp(lib,".libs/",6))) {
d6e753
					*aarg++ = "-L.libs";
d22d01
					lib[1] = 0;
d6e753
				} else if ((base = strrchr(lib,'/'))) {
46715b
					if (base - lib == 5) {
46715b
						if (!(strncmp(&base[-5],".libs/",6)))
46715b
							base -= 4;
46715b
46715b
					} else if (base - lib >= 6) {
6fda2b
						if (!(strncmp(&base[-6],"/.libs/",7)))
6fda2b
							base -= 6;
46715b
					}
6fda2b
6fda2b
					*base = 0;
6fda2b
				} else {
6fda2b
					lib[0] = '.';
6fda2b
					lib[1] = 0;
6fda2b
				}
6fda2b
ec6151
				for (; dep; ) {
94ae74
					*aarg++ = darg;
6fda2b
					mark    = darg;
ec6151
					darg   += strlen(dep);
ec6151
378bcc
					if (darg[-1] == '\n')
378bcc
						darg[-1] = 0;
ec6151
					else
ec6151
						darg++;
ec6151
6fda2b
					/* handle -L... as needed */
6fda2b
					if ((mark[0] == '-')
6fda2b
							&& (mark[1] == 'L')
360565
							&& (mark[2] != '/')) {
6fda2b
						if (strlen(mark) >= sizeof(depdir) - 1)
6fda2b
							return SLBT_BUFFER_ERROR(dctx);
6fda2b
6fda2b
						darg = mark;
6fda2b
						strcpy(depdir,&mark[2]);
6fda2b
						sprintf(darg,"-L%s/%s",lib,depdir);
6fda2b
6fda2b
						darg += strlen(darg);
6fda2b
						darg++;
6fda2b
					}
6fda2b
ec6151
					dep = fgets(darg,st.st_size+1,fdeps);
94ae74
				}
3be47d
94ae74
				if (ferror(fdeps)) {
94ae74
					free(depsmeta->altv);
94ae74
					free(depsmeta->args);
94ae74
					fclose(fdeps);
9c9f28
					return SLBT_FILE_ERROR(dctx);
94ae74
				} else {
94ae74
					fclose(fdeps);
94ae74
				}
94ae74
			} else if (freqd) {
3be47d
				free(depsmeta->altv);
3be47d
				free(depsmeta->args);
Kylie McClain 7ce25c
				return SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_LINK_FREQ);
3be47d
			}
3be47d
		}
2ef5be
	}
2ef5be
f5983e
	if (dctx->cctx->drvflags & SLBT_DRIVER_EXPORT_DYNAMIC)
f5983e
		*aarg++ = "-Wl,--export-dynamic";
f5983e
2ef5be
	return 0;
2ef5be
}
2ef5be
671454
static int slbt_exec_link_finalize_argument_vector(
671454
	const struct slbt_driver_ctx *	dctx,
671454
	struct slbt_exec_ctx *		ectx)
671454
{
671454
	char *		sargv[1024];
671454
	char **		sargvbuf;
671454
	char **		base;
c6d4dc
	char **		parg;
c6d4dc
	char **		aarg;
c6d4dc
	char **		oarg;
c6d4dc
	char **		aargv;
c6d4dc
	char **		oargv;
c6d4dc
	char **		cap;
c6d4dc
	char **		src;
c6d4dc
	char **		dst;
671454
	char *		arg;
671454
	char *		dot;
c6d4dc
	const char *	arsuffix;
671454
c6d4dc
	/* vector size */
c6d4dc
	base     = ectx->argv;
c6d4dc
	arsuffix = dctx->cctx->settings.arsuffix;
671454
c6d4dc
	for (parg=base; *parg; parg++)
c6d4dc
		(void)0;
671454
671454
	/* buffer */
c6d4dc
	if (parg - base < 512) {
c6d4dc
		aargv    = &sargv[0];
c6d4dc
		oargv    = &sargv[512];
c6d4dc
		aarg     = aargv;
c6d4dc
		oarg     = oargv;
671454
		sargvbuf = 0;
671454
c6d4dc
	} else if (!(sargvbuf = calloc(2*(parg-base+1),sizeof(char *)))) {
671454
		return SLBT_SYSTEM_ERROR(dctx);
671454
671454
	} else {
c6d4dc
		aargv = &sargvbuf[0];
c6d4dc
		oargv = &sargvbuf[parg-base+1];
c6d4dc
		aarg  = aargv;
c6d4dc
		oarg  = oargv;
671454
	}
671454
c6d4dc
	/* (program name) */
c6d4dc
	parg = &base[1];
c6d4dc
c6d4dc
	/* split object args from all other args, record output annotation */
c6d4dc
	for (; *parg; ) {
c6d4dc
		if (ectx->lout[0] == parg) {
c6d4dc
			ectx->lout[0] = &aarg[0];
c6d4dc
			ectx->lout[1] = &aarg[1];
c6d4dc
		}
c6d4dc
c6d4dc
		if (ectx->mout[0] == parg) {
c6d4dc
			ectx->lout[0] = &aarg[0];
c6d4dc
			ectx->lout[1] = &aarg[1];
c6d4dc
		}
c6d4dc
c6d4dc
		arg = *parg;
c6d4dc
		dot = strrchr(arg,'.');
671454
c6d4dc
		if (dot && (!strcmp(dot,".o") || !strcmp(dot,".lo"))) {
c6d4dc
			*oarg++ = *parg++;
671454
c6d4dc
		} else if ((arg[0] == '-')
c6d4dc
				&& (arg[1] == 'W')
c6d4dc
				&& (arg[2] == 'l')
c6d4dc
				&& (arg[3] == ',')
c6d4dc
				&& !strcmp(&arg[4],"--whole-archive")
c6d4dc
				&& parg[1] && parg[2]
c6d4dc
				&& !strcmp(parg[2],"-Wl,--no-whole-archive")
c6d4dc
				&& (dot = strrchr(parg[1],'.'))
c6d4dc
				&& !strcmp(dot,arsuffix)) {
c6d4dc
			*oarg++ = *parg++;
c6d4dc
			*oarg++ = *parg++;
c6d4dc
			*oarg++ = *parg++;
c6d4dc
		} else {
c6d4dc
			*aarg++ = *parg++;
c6d4dc
		}
c6d4dc
	}
671454
c6d4dc
	/* (program name) */
c6d4dc
	dst = &base[1];
671454
c6d4dc
	/* join object args */
c6d4dc
	src = oargv;
c6d4dc
	cap = oarg;
671454
c6d4dc
	for (; src
c6d4dc
		*dst++ = *src++;
671454
c6d4dc
	/* join all other args */
c6d4dc
	src = aargv;
c6d4dc
	cap = aarg;
671454
c6d4dc
	for (; src
c6d4dc
		*dst++ = *src++;
671454
671454
	/* output annotation */
c6d4dc
	if (ectx->lout[0]) {
c6d4dc
		ectx->lout[0] = &base[1] + (oarg - oargv) + (ectx->lout[0] - aargv);
c6d4dc
		ectx->lout[1] = ectx->lout[0] + 1;
671454
	}
671454
c6d4dc
	if (ectx->mout[0]) {
c6d4dc
		ectx->mout[0] = &base[1] + (oarg - oargv) + (ectx->mout[0] - aargv);
c6d4dc
		ectx->mout[1] = ectx->mout[0] + 1;
671454
	}
671454
671454
	/* all done */
671454
	if (sargvbuf)
671454
		free(sargvbuf);
671454
671454
	return 0;
671454
}
671454
628cde
static int slbt_exec_link_remove_file(
628cde
	const struct slbt_driver_ctx *	dctx,
628cde
	struct slbt_exec_ctx *		ectx,
628cde
	const char *			target)
628cde
{
d3ca02
	(void)ectx;
d3ca02
628cde
	/* remove target (if any) */
628cde
	if (!(unlink(target)) || (errno == ENOENT))
628cde
		return 0;
628cde
017c47
	return SLBT_SYSTEM_ERROR(dctx);
628cde
}
628cde
0913c3
static int slbt_exec_link_create_dep_file(
9c9f28
	const struct slbt_driver_ctx *	dctx,
0913c3
	struct slbt_exec_ctx *	ectx,
0913c3
	char **			altv,
e3d03d
	const char *		libfilename,
e3d03d
	bool			farchive)
0913c3
{
0913c3
	char **	parg;
0913c3
	char *	popt;
0913c3
	char *	plib;
fe97e7
	char *	mark;
fe97e7
	char *	base;
fe97e7
	size_t	size;
fe97e7
	FILE *	fdeps;
fe97e7
	char *	deplib;
6fda2b
	char	reladir[PATH_MAX];
fe97e7
	char	deplibs[PATH_MAX];
0913c3
	char	depfile[PATH_MAX];
fe97e7
	struct  stat st;
7f35de
	int	ldepth;
39f31e
	int	fdyndep;
fb50c9
	int	fnodeps;
0913c3
347e75
	if (ectx->fdeps) {
0913c3
		fclose(ectx->fdeps);
347e75
		ectx->fdeps = 0;
347e75
	}
0913c3
0913c3
	if ((size_t)snprintf(depfile,sizeof(depfile),"%s.slibtool.deps",
0913c3
				libfilename)
0913c3
			>= sizeof(depfile))
9c9f28
		return SLBT_BUFFER_ERROR(dctx);
0913c3
0913c3
	if (!(ectx->fdeps = fopen(depfile,"w")))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
0913c3
0913c3
	for (parg=altv; *parg; parg++) {
0913c3
		popt = 0;
0913c3
		plib = 0;
0913c3
0913c3
		if (!strcmp(*parg,"-l")) {
0913c3
			popt = *parg++;
0913c3
			plib = *parg;
0913c3
		} else if (!strcmp(*parg,"--library")) {
0913c3
			popt = *parg++;
0913c3
			plib = *parg;
0913c3
		} else if (!strncmp(*parg,"-l",2)) {
0913c3
			popt = *parg;
0913c3
			plib = popt + 2;
0913c3
		} else if (!strncmp(*parg,"--library=",10)) {
0913c3
			popt = *parg;
0913c3
			plib = popt + 10;
4f56fd
		} else if (!strncmp(*parg,"-f",2)) {
4f56fd
			(void)0;
fe97e7
		} else if ((popt = strrchr(*parg,'.')) && !strcmp(popt,".la")) {
fe97e7
			/* import dependency list */
fe97e7
			if ((base = strrchr(*parg,'/')))
fe97e7
				base++;
fe97e7
			else
fe97e7
				base = *parg;
fe97e7
6fda2b
			/* [relative .la directory] */
6fda2b
			if (base > *parg) {
6fda2b
				if ((size_t)snprintf(reladir,
6fda2b
							sizeof(reladir),
6fda2b
							"%s",*parg)
347e75
						>= sizeof(reladir))
6fda2b
					return SLBT_SYSTEM_ERROR(dctx);
6fda2b
6fda2b
				reladir[base - *parg - 1] = 0;
6fda2b
			} else {
6fda2b
				reladir[0] = '.';
6fda2b
				reladir[1] = 0;
6fda2b
			}
6fda2b
39f31e
39f31e
			/* dynamic library dependency? */
39f31e
			strcpy(depfile,*parg);
39f31e
			mark = depfile + (base - *parg);
39f31e
			size = sizeof(depfile) - (base - *parg);
39f31e
39f31e
			if ((size_t)snprintf(mark,size,".libs/%s",base)
39f31e
					>= size)
39f31e
				return SLBT_BUFFER_ERROR(dctx);
39f31e
39f31e
			mark = strrchr(mark,'.');
6527a9
			strcpy(mark,dctx->cctx->settings.dsosuffix);
39f31e
347e75
			fdeps   = 0;
39f31e
			fdyndep = !stat(depfile,&st);
fb50c9
			fnodeps = farchive && fdyndep;
39f31e
6fda2b
			/* [-L... as needed] */
39f31e
			if (fdyndep && (base > *parg) && (ectx->ldirdepth >= 0)) {
347e75
				if (fputs("-L",ectx->fdeps) < 0)
7f35de
					return SLBT_SYSTEM_ERROR(dctx);
7f35de
7f35de
				for (ldepth=ectx->ldirdepth; ldepth; ldepth--)
347e75
					if (fputs("../",ectx->fdeps) < 0)
7f35de
						return SLBT_SYSTEM_ERROR(dctx);
7f35de
347e75
				if (fprintf(ectx->fdeps,"%s/.libs\n",reladir) < 0)
6fda2b
					return SLBT_SYSTEM_ERROR(dctx);
6fda2b
			}
6fda2b
09421c
			/* -ldeplib */
39f31e
			if (fdyndep) {
1a8018
				*popt = 0;
1a8018
				mark  = base;
1a8018
				mark += strlen(dctx->cctx->settings.dsoprefix);
09421c
347e75
				if (fprintf(ectx->fdeps,"-l%s\n",mark) < 0)
1a8018
					return SLBT_SYSTEM_ERROR(dctx);
09421c
1a8018
				*popt = '.';
1a8018
			}
09421c
6fda2b
			/* [open dependency list] */
fe97e7
			strcpy(depfile,*parg);
fe97e7
			mark = depfile + (base - *parg);
fe97e7
			size = sizeof(depfile) - (base - *parg);
fe97e7
fe97e7
			if ((size_t)snprintf(mark,size,".libs/%s",base)
fe97e7
					>= size)
9c9f28
				return SLBT_BUFFER_ERROR(dctx);
fe97e7
fe97e7
			mark = strrchr(mark,'.');
fe97e7
			size = sizeof(depfile) - (mark - depfile);
fe97e7
1a8018
			if (!farchive) {
1a8018
				if ((size_t)snprintf(
1a8018
						mark,size,
fce018
						"%s.slibtool.deps",
fce018
						dctx->cctx->settings.dsosuffix)
1a8018
						>= size)
1a8018
					return SLBT_BUFFER_ERROR(dctx);
1a8018
1a8018
				if (stat(depfile,&st)) {
347e75
					if (errno != ENOENT)
1a8018
						return SLBT_SYSTEM_ERROR(dctx);
1a8018
				} else {
1a8018
					if (!(fdeps = fopen(depfile,"r")))
1a8018
						return SLBT_SYSTEM_ERROR(dctx);
1a8018
				}
1a8018
			}
fe97e7
fb50c9
			if (!fnodeps && (farchive || !fdeps)) {
1a8018
				if ((size_t)snprintf(mark,size,".a.slibtool.deps")
1a8018
						>= size)
1a8018
					return SLBT_BUFFER_ERROR(dctx);
fe97e7
1a8018
				if (stat(depfile,&st))
1a8018
					return SLBT_SYSTEM_ERROR(dctx);
1a8018
1a8018
				if (!(fdeps = fopen(depfile,"r")))
1a8018
					return SLBT_SYSTEM_ERROR(dctx);
1a8018
			}
fe97e7
6fda2b
			/* [-l... as needed] */
347e75
			deplib = fdeps && st.st_size
e64108
				? fgets(deplibs,st.st_size+1,fdeps)
e64108
				: 0;
e64108
e64108
			for (; deplib; ) {
6fda2b
				if ((deplib[0] == '-') && (deplib[1] == 'L')
360565
						&& (deplib[2] != '/')) {
6fda2b
					if (fprintf(ectx->fdeps,"-L%s/%s",
6fda2b
							reladir,&deplib[2]) < 0) {
6fda2b
						fclose(fdeps);
6fda2b
						return SLBT_SYSTEM_ERROR(dctx);
6fda2b
					}
6fda2b
				} else {
6fda2b
					if (fprintf(ectx->fdeps,"%s",deplib) < 0) {
6fda2b
						fclose(fdeps);
6fda2b
						return SLBT_SYSTEM_ERROR(dctx);
6fda2b
					}
e49ee9
				}
fe97e7
fe97e7
				deplib = fgets(deplibs,st.st_size+1,fdeps);
fe97e7
			}
e49ee9
347e75
			if (fdeps)
347e75
				fclose(fdeps);
0913c3
		}
0913c3
0913c3
		if (plib)
0913c3
			if (fprintf(ectx->fdeps,"-l%s\n",plib) < 0)
9c9f28
				return SLBT_SYSTEM_ERROR(dctx);
0913c3
	}
0913c3
0913c3
	if (fflush(ectx->fdeps))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
0913c3
0913c3
	return 0;
0913c3
}
0913c3
9112ac
static int slbt_exec_link_create_import_library(
9112ac
	const struct slbt_driver_ctx *	dctx,
9112ac
	struct slbt_exec_ctx *		ectx,
9112ac
	char *				impfilename,
9112ac
	char *				deffilename,
4fdf35
	char *				soname,
4fdf35
	bool				ftag)
9112ac
{
bfe950
	int	fmdso;
4fdf35
	char *	slash;
bfe950
	char *	eargv[8];
9112ac
	char	program[PATH_MAX];
4fdf35
	char	hosttag[PATH_MAX];
4fdf35
	char	hostlnk[PATH_MAX];
4fdf35
4fdf35
	/* libfoo.so.def.{flavor} */
4fdf35
	if (ftag) {
4fdf35
		if ((size_t)snprintf(hosttag,sizeof(hosttag),"%s.%s",
4fdf35
				deffilename,
4fdf35
				dctx->cctx->host.flavor) >= sizeof(hosttag))
9c9f28
			return SLBT_BUFFER_ERROR(dctx);
4fdf35
4fdf35
		if ((size_t)snprintf(hostlnk,sizeof(hostlnk),"%s.host",
4fdf35
				deffilename) >= sizeof(hostlnk))
9c9f28
			return SLBT_BUFFER_ERROR(dctx);
4fdf35
4fdf35
		/* libfoo.so.def is under .libs/ */
4fdf35
		if (!(slash = strrchr(deffilename,'/')))
Kylie McClain 7ce25c
			return SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_LINK_FLOW);
4fdf35
4fdf35
		if (slbt_create_symlink(
4fdf35
				dctx,ectx,
4fdf35
				deffilename,
4fdf35
				hosttag,
4fdf35
				false))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
4fdf35
4fdf35
		/* libfoo.so.def.{flavor} is under .libs/ */
4fdf35
		if (!(slash = strrchr(hosttag,'/')))
Kylie McClain 7ce25c
			return SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_LINK_FLOW);
4fdf35
4fdf35
		if (slbt_create_symlink(
4fdf35
				dctx,ectx,
4fdf35
				++slash,
4fdf35
				hostlnk,
4fdf35
				false))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
4fdf35
	}
9112ac
bfe950
	/* dlltool or mdso? */
bfe950
	if (dctx->cctx->drvflags & SLBT_DRIVER_IMPLIB_DSOMETA)
bfe950
		fmdso = 1;
bfe950
bfe950
	else if (dctx->cctx->drvflags & SLBT_DRIVER_IMPLIB_DSOMETA)
bfe950
		fmdso = 0;
bfe950
bfe950
	else if (!(strcmp(dctx->cctx->host.flavor,"midipix")))
bfe950
		fmdso = 1;
9112ac
bfe950
	else
bfe950
		fmdso = 0;
bfe950
bfe950
	/* eargv */
bfe950
	if (fmdso) {
bfe950
		if ((size_t)snprintf(program,sizeof(program),"%s",
bfe950
				dctx->cctx->host.mdso) >= sizeof(program))
bfe950
			return SLBT_BUFFER_ERROR(dctx);
bfe950
bfe950
		eargv[0] = program;
bfe950
		eargv[1] = "-i";
bfe950
		eargv[2] = impfilename;
bfe950
		eargv[3] = "-n";
bfe950
		eargv[4] = soname;
bfe950
		eargv[5] = deffilename;
bfe950
		eargv[6] = 0;
bfe950
	} else {
bfe950
		if ((size_t)snprintf(program,sizeof(program),"%s",
bfe950
				dctx->cctx->host.dlltool) >= sizeof(program))
bfe950
			return SLBT_BUFFER_ERROR(dctx);
bfe950
bfe950
		eargv[0] = program;
bfe950
		eargv[1] = "-l";
bfe950
		eargv[2] = impfilename;
bfe950
		eargv[3] = "-d";
bfe950
		eargv[4] = deffilename;
bfe950
		eargv[5] = "-D";
bfe950
		eargv[6] = soname;
bfe950
		eargv[7] = 0;
bfe950
	}
9112ac
9112ac
	/* alternate argument vector */
bfe950
	ectx->argv    = eargv;
9112ac
	ectx->program = program;
9112ac
9112ac
	/* step output */
9112ac
	if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
9112ac
		if (slbt_output_link(dctx,ectx))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
9112ac
bfe950
	/* dlltool/mdso spawn */
9112ac
	if ((slbt_spawn(ectx,true) < 0) || ectx->exitcode)
9c9f28
		return SLBT_SPAWN_ERROR(dctx);
9112ac
9112ac
	return 0;
9112ac
}
9112ac
ec5e56
static int slbt_exec_link_create_noop_symlink(
ec5e56
	const struct slbt_driver_ctx *	dctx,
ec5e56
	struct slbt_exec_ctx *		ectx,
ec5e56
	const char *			arfilename)
ec5e56
{
ec5e56
	struct stat st;
ec5e56
ec5e56
	/* file exists? */
ec5e56
	if (!(lstat(arfilename,&st)))
ec5e56
		return 0;
ec5e56
ec5e56
	/* needed? */
ec5e56
	if (errno == ENOENT) {
ec5e56
		if (slbt_create_symlink(
ec5e56
				dctx,ectx,
ec5e56
				"/dev/null",
ec5e56
				arfilename,
ec5e56
                                false))
ec5e56
			return SLBT_NESTED_ERROR(dctx);
ec5e56
		return 0;
ec5e56
	}
ec5e56
ec5e56
	return SLBT_SYSTEM_ERROR(dctx);
ec5e56
}
ec5e56
3b5e3d
static int slbt_exec_link_create_archive(
5cc3b3
	const struct slbt_driver_ctx *	dctx,
a51ace
	struct slbt_exec_ctx *		ectx,
3b5e3d
	const char *			arfilename,
02ae4d
	bool				fpic,
02ae4d
	bool				fprimary)
5cc3b3
{
5cc3b3
	char ** 	aarg;
5cc3b3
	char ** 	parg;
02ae4d
	char *		base;
02ae4d
	char *		mark;
02ae4d
	char *		slash;
3c594d
	char		program[PATH_MAX];
3c594d
	char		output [PATH_MAX];
02ae4d
	char		arfile [PATH_MAX];
02ae4d
	char		arlink [PATH_MAX];
5cc3b3
175362
	/* -disable-static? */
175362
	if (dctx->cctx->drvflags & SLBT_DRIVER_DISABLE_STATIC)
Felix Janda a64776
		if (dctx->cctx->rpath)
ec5e56
			return slbt_exec_link_create_noop_symlink(
ec5e56
				dctx,ectx,arfilename);
175362
e7ddb2
	/* initial state */
e7ddb2
	slbt_reset_arguments(ectx);
e7ddb2
5cc3b3
	/* placeholders */
5cc3b3
	slbt_reset_placeholders(ectx);
5cc3b3
5cc3b3
	/* alternate program (ar, ranlib) */
5cc3b3
	ectx->program = program;
5cc3b3
a51ace
	/* output */
a51ace
	if ((size_t)snprintf(output,sizeof(output),"%s",
a51ace
			arfilename) >= sizeof(output))
9c9f28
		return SLBT_BUFFER_ERROR(dctx);
a51ace
5cc3b3
	/* ar alternate argument vector */
5cc3b3
	if ((size_t)snprintf(program,sizeof(program),"%s",
5cc3b3
			dctx->cctx->host.ar) >= sizeof(program))
9c9f28
		return SLBT_BUFFER_ERROR(dctx);
5cc3b3
5cc3b3
	aarg    = ectx->altv;
5cc3b3
	*aarg++ = program;
0330cf
	*aarg++ = "crs";
a51ace
	*aarg++ = output;
5cc3b3
5cc3b3
	/* input argument adjustment */
5cc3b3
	for (parg=ectx->cargv; *parg; parg++)
14d60a
		if (slbt_adjust_input_argument(*parg,".lo",".o",fpic))
5cc3b3
			*aarg++ = *parg;
5cc3b3
5cc3b3
	*aarg = 0;
5cc3b3
	ectx->argv = ectx->altv;
5cc3b3
5cc3b3
	/* step output */
5cc3b3
	if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
5cc3b3
		if (slbt_output_link(dctx,ectx))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
5cc3b3
628cde
	/* remove old archive as needed */
628cde
	if (slbt_exec_link_remove_file(dctx,ectx,output))
9c9f28
		return SLBT_NESTED_ERROR(dctx);
628cde
0913c3
	/* .deps */
e3d03d
	if (slbt_exec_link_create_dep_file(
e3d03d
			dctx,ectx,ectx->cargv,
e3d03d
			arfilename,true))
9c9f28
		return SLBT_NESTED_ERROR(dctx);
0913c3
5cc3b3
	/* ar spawn */
5cc3b3
	if ((slbt_spawn(ectx,true) < 0) || ectx->exitcode)
9c9f28
		return SLBT_SPAWN_ERROR(dctx);
69bc4a
69bc4a
	/* input objects associated with .la archives */
69bc4a
	for (parg=ectx->cargv; *parg; parg++)
ffa593
		if (slbt_adjust_input_argument(*parg,".la",".a",true))
69bc4a
			if (slbt_archive_import(dctx,ectx,output,*parg))
9c9f28
				return SLBT_NESTED_ERROR(dctx);
5cc3b3
02ae4d
	if (fprimary && (dctx->cctx->drvflags & SLBT_DRIVER_DISABLE_SHARED)) {
02ae4d
		strcpy(arlink,output);
02ae4d
		mark  = strrchr(arlink,'/');
02ae4d
		*mark = 0;
02ae4d
02ae4d
		base  = output + (mark - arlink);
02ae4d
		base++;
02ae4d
02ae4d
		if ((slash = strrchr(arlink,'/')))
02ae4d
			slash++;
02ae4d
		else
02ae4d
			slash = arlink;
02ae4d
02ae4d
		strcpy(slash,base);
02ae4d
		sprintf(arfile,".libs/%s",base);
02ae4d
02ae4d
		if (slbt_exec_link_remove_file(dctx,ectx,arlink))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
02ae4d
02ae4d
		if (symlink(arfile,arlink))
9c9f28
			return SLBT_SYSTEM_ERROR(dctx);
02ae4d
	}
02ae4d
5cc3b3
	return 0;
5cc3b3
}
5cc3b3
b3940a
static int slbt_exec_link_create_library(
b3940a
	const struct slbt_driver_ctx *	dctx,
b3940a
	struct slbt_exec_ctx *		ectx,
112a2b
	const char *			dsofilename,
112a2b
	const char *			relfilename)
b3940a
{
b3940a
	char ** parg;
79c501
	char	cwd    [PATH_MAX];
b3940a
	char	output [PATH_MAX];
0f8591
	char	soname [PATH_MAX];
fbb80b
	char	symfile[PATH_MAX];
bd9cc9
	struct slbt_deps_meta depsmeta = {0,0,0,0};
b3940a
b3940a
	/* initial state */
b3940a
	slbt_reset_arguments(ectx);
b3940a
b3940a
	/* placeholders */
b3940a
	slbt_reset_placeholders(ectx);
b3940a
b3940a
	/* input argument adjustment */
b3940a
	for (parg=ectx->cargv; *parg; parg++)
14d60a
		slbt_adjust_input_argument(*parg,".lo",".o",true);
b3940a
6fda2b
	/* .deps */
e3d03d
	if (slbt_exec_link_create_dep_file(
e3d03d
			dctx,ectx,ectx->cargv,
e3d03d
			dsofilename,false))
6fda2b
		return slbt_exec_link_exit(
6fda2b
			&depsmeta,
6fda2b
			SLBT_NESTED_ERROR(dctx));
6fda2b
b3940a
	/* linker argument adjustment */
b3940a
	for (parg=ectx->cargv; *parg; parg++)
afaba2
		if (slbt_adjust_linker_argument(
9c9f28
				dctx,
afaba2
				*parg,true,
afaba2
				dctx->cctx->settings.dsosuffix,
8b7d50
				dctx->cctx->settings.arsuffix,
8b7d50
				&depsmeta) < 0)
9c9f28
			return SLBT_NESTED_ERROR(dctx);
b3940a
b3940a
	/* --no-undefined */
b3940a
	if (dctx->cctx->drvflags & SLBT_DRIVER_NO_UNDEFINED)
b3940a
		*ectx->noundef = "-Wl,--no-undefined";
b3940a
0f8591
	/* -soname */
b1778b
	if ((dctx->cctx->drvflags & SLBT_DRIVER_IMAGE_MACHO)) {
b1778b
		(void)0;
b1778b
	} else if (!(dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION)) {
867d1e
		if ((size_t)snprintf(soname,sizeof(soname),"-Wl,%s%s%s.%d",
2f9f52
					ectx->sonameprefix,
867d1e
					dctx->cctx->libname,
867d1e
					dctx->cctx->settings.dsosuffix,
867d1e
					dctx->cctx->verinfo.major)
867d1e
				>= sizeof(soname))
9c9f28
			return SLBT_BUFFER_ERROR(dctx);
0f8591
867d1e
		*ectx->soname  = "-Wl,-soname";
867d1e
		*ectx->lsoname = soname;
112a2b
	} else if (relfilename) {
112a2b
		if ((size_t)snprintf(soname,sizeof(soname),"-Wl,%s%s-%s%s",
2f9f52
					ectx->sonameprefix,
112a2b
					dctx->cctx->libname,
112a2b
					dctx->cctx->release,
112a2b
					dctx->cctx->settings.dsosuffix)
112a2b
				>= sizeof(soname))
9c9f28
			return SLBT_BUFFER_ERROR(dctx);
112a2b
112a2b
		*ectx->soname  = "-Wl,-soname";
112a2b
		*ectx->lsoname = soname;
867d1e
	}
0f8591
fbb80b
	/* PE: --output-def */
fbb80b
	if (dctx->cctx->drvflags & SLBT_DRIVER_IMAGE_PE) {
fbb80b
		if ((size_t)snprintf(symfile,sizeof(symfile),"-Wl,%s",
fbb80b
					ectx->deffilename)
fbb80b
				>= sizeof(output))
9c9f28
			return SLBT_BUFFER_ERROR(dctx);
fbb80b
fbb80b
		*ectx->symdefs = "-Wl,--output-def";
fbb80b
		*ectx->symfile = symfile;
fbb80b
	}
fbb80b
372423
	/* shared/static */
372423
	if (dctx->cctx->drvflags & SLBT_DRIVER_ALL_STATIC) {
372423
		*ectx->dpic = "-static";
372423
	} else {
372423
		*ectx->dpic = "-shared";
372423
		*ectx->fpic = "-fPIC";
372423
	}
b3940a
b3940a
	/* output */
112a2b
	if (relfilename) {
112a2b
		strcpy(output,relfilename);
112a2b
	} else if (dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION) {
867d1e
		strcpy(output,dsofilename);
867d1e
	} else {
867d1e
		if ((size_t)snprintf(output,sizeof(output),"%s.%d.%d.%d",
867d1e
					dsofilename,
867d1e
					dctx->cctx->verinfo.major,
867d1e
					dctx->cctx->verinfo.minor,
867d1e
					dctx->cctx->verinfo.revision)
867d1e
				>= sizeof(output))
9c9f28
			return SLBT_BUFFER_ERROR(dctx);
867d1e
	}
b3940a
b3940a
	*ectx->lout[0] = "-o";
b3940a
	*ectx->lout[1] = output;
b3940a
0f5ca7
	/* ldrpath */
0f5ca7
	if (dctx->cctx->host.ldrpath) {
0f5ca7
		if (slbt_exec_link_remove_file(dctx,ectx,ectx->rpathfilename))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
0f5ca7
0f5ca7
		if (symlink(dctx->cctx->host.ldrpath,ectx->rpathfilename))
9c9f28
			return SLBT_SYSTEM_ERROR(dctx);
0f5ca7
	}
0f5ca7
79c501
	/* cwd */
79c501
	if (!getcwd(cwd,sizeof(cwd)))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
79c501
2ef5be
	/* .libs/libfoo.so --> -L.libs -lfoo */
2ef5be
	if (slbt_exec_link_adjust_argument_vector(
3be47d
			dctx,ectx,&depsmeta,cwd,true))
9c9f28
		return SLBT_NESTED_ERROR(dctx);
2ef5be
2ef5be
	/* using alternate argument vector */
3be47d
	ectx->argv    = depsmeta.altv;
3be47d
	ectx->program = depsmeta.altv[0];
2ef5be
671454
	/* sigh */
671454
	if (slbt_exec_link_finalize_argument_vector(dctx,ectx))
671454
		return SLBT_NESTED_ERROR(dctx);
671454
b3940a
	/* step output */
b3940a
	if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
b3940a
		if (slbt_output_link(dctx,ectx))
9c9f28
			return slbt_exec_link_exit(
9c9f28
				&depsmeta,
9c9f28
				SLBT_NESTED_ERROR(dctx));
b3940a
b3940a
	/* spawn */
b3940a
	if ((slbt_spawn(ectx,true) < 0) || ectx->exitcode)
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_SPAWN_ERROR(dctx));
b3940a
3be47d
	return slbt_exec_link_exit(&depsmeta,0);
b3940a
}
b3940a
f6ccbe
static int slbt_exec_link_create_executable(
f6ccbe
	const struct slbt_driver_ctx *	dctx,
f6ccbe
	struct slbt_exec_ctx *		ectx,
f6ccbe
	const char *			exefilename)
f6ccbe
{
f6ccbe
	char ** parg;
e9dbdf
	char *	base;
5ee0d1
	char	cwd    [PATH_MAX];
f6ccbe
	char	output [PATH_MAX];
5ee0d1
	char	wrapper[PATH_MAX];
5e5804
	char	wraplnk[PATH_MAX];
238670
	bool	fabspath;
372423
	bool	fpic;
dac9cd
	const struct slbt_source_version * verinfo;
bd9cc9
	struct slbt_deps_meta depsmeta = {0,0,0,0};
f6ccbe
f6ccbe
	/* initial state */
f6ccbe
	slbt_reset_arguments(ectx);
f6ccbe
f6ccbe
	/* placeholders */
f6ccbe
	slbt_reset_placeholders(ectx);
f6ccbe
372423
	/* fpic */
372423
	fpic = !(dctx->cctx->drvflags & SLBT_DRIVER_ALL_STATIC);
372423
f6ccbe
	/* input argument adjustment */
f6ccbe
	for (parg=ectx->cargv; *parg; parg++)
372423
		slbt_adjust_input_argument(*parg,".lo",".o",fpic);
f6ccbe
f6ccbe
	/* linker argument adjustment */
f6ccbe
	for (parg=ectx->cargv; *parg; parg++)
afaba2
		if (slbt_adjust_linker_argument(
9c9f28
				dctx,
afaba2
				*parg,true,
afaba2
				dctx->cctx->settings.dsosuffix,
8b7d50
				dctx->cctx->settings.arsuffix,
8b7d50
				&depsmeta) < 0)
9c9f28
			return SLBT_NESTED_ERROR(dctx);
f6ccbe
f6ccbe
	/* --no-undefined */
f6ccbe
	if (dctx->cctx->drvflags & SLBT_DRIVER_NO_UNDEFINED)
f6ccbe
		*ectx->noundef = "-Wl,--no-undefined";
f6ccbe
5ee0d1
	/* executable wrapper: header */
5ee0d1
	if ((size_t)snprintf(wrapper,sizeof(wrapper),"%s.wrapper.tmp",
5ee0d1
				dctx->cctx->output)
5ee0d1
			>= sizeof(wrapper))
9c9f28
		return SLBT_BUFFER_ERROR(dctx);
5ee0d1
5ee0d1
	if (!(ectx->fwrapper = fopen(wrapper,"w")))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
5ee0d1
dac9cd
	verinfo = slbt_source_version();
dac9cd
5ee0d1
	if (fprintf(ectx->fwrapper,
5ee0d1
			"#!/bin/sh\n"
821d55
			"# libtool compatible executable wrapper\n"
dac9cd
			"# Generated by %s (slibtool %d.%d.%d)\n"
dac9cd
			"# [commit reference: %s]\n\n"
1f87fd
5ee0d1
			"if [ -z \"$%s\" ]; then\n"
5ee0d1
			"\tDL_PATH=\n"
5ee0d1
			"\tCOLON=\n"
5ee0d1
			"\tLCOLON=\n"
5ee0d1
			"else\n"
5ee0d1
			"\tDL_PATH=\n"
5ee0d1
			"\tCOLON=\n"
5ee0d1
			"\tLCOLON=':'\n"
5ee0d1
			"fi\n\n",
1f87fd
1f87fd
			dctx->program,
dac9cd
			verinfo->major,verinfo->minor,verinfo->revision,
dac9cd
			verinfo->commit,
5ee0d1
			dctx->cctx->settings.ldpathenv) < 0)
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
5ee0d1
f6ccbe
	/* output */
f6ccbe
	if ((size_t)snprintf(output,sizeof(output),"%s",
f6ccbe
				exefilename)
f6ccbe
			>= sizeof(output))
9c9f28
		return SLBT_BUFFER_ERROR(dctx);
f6ccbe
f6ccbe
	*ectx->lout[0] = "-o";
f6ccbe
	*ectx->lout[1] = output;
f6ccbe
e5d83d
	/* static? */
e5d83d
	if (dctx->cctx->drvflags & SLBT_DRIVER_ALL_STATIC)
e5d83d
		*ectx->dpic = "-static";
e5d83d
79c501
	/* cwd */
79c501
	if (!getcwd(cwd,sizeof(cwd)))
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
79c501
2ef5be
	/* .libs/libfoo.so --> -L.libs -lfoo */
2ef5be
	if (slbt_exec_link_adjust_argument_vector(
3be47d
			dctx,ectx,&depsmeta,cwd,false))
9c9f28
		return SLBT_NESTED_ERROR(dctx);
2ef5be
2ef5be
	/* using alternate argument vector */
3be47d
	ectx->argv    = depsmeta.altv;
3be47d
	ectx->program = depsmeta.altv[0];
2ef5be
4a0a6c
	/* executable wrapper symlink */
4a0a6c
	if ((size_t)snprintf(wraplnk,sizeof(wraplnk),"%s.exe.wrapper",
4a0a6c
			dctx->cctx->output) >= sizeof(wraplnk))
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_BUFFER_ERROR(dctx));
4a0a6c
e9dbdf
	/* executable wrapper: base name */
4a0a6c
	if ((base = strrchr(wraplnk,'/')))
e9dbdf
		base++;
e9dbdf
	else
4a0a6c
		base = wraplnk;
e9dbdf
5ee0d1
	/* executable wrapper: footer */
238670
	fabspath = (exefilename[0] == '/');
238670
5ee0d1
	if (fprintf(ectx->fwrapper,
5ee0d1
			"DL_PATH=\"$DL_PATH$LCOLON$%s\"\n\n"
5ee0d1
			"export %s=$DL_PATH\n\n"
4a0a6c
			"if [ `basename \"$0\"` = \"%s\" ]; then\n"
e9dbdf
			"\tprogram=\"$1\"; shift\n"
e9dbdf
			"\texec \"$program\" \"$@\"\n"
e9dbdf
			"fi\n\n"
5ee0d1
			"exec %s/%s \"$@\"\n",
5ee0d1
			dctx->cctx->settings.ldpathenv,
5ee0d1
			dctx->cctx->settings.ldpathenv,
e9dbdf
			base,
238670
			fabspath ? "" : cwd,
238670
			fabspath ? &exefilename[1] : exefilename) < 0)
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_SYSTEM_ERROR(dctx));
5ee0d1
671454
	/* sigh */
671454
	if (slbt_exec_link_finalize_argument_vector(dctx,ectx))
671454
		return SLBT_NESTED_ERROR(dctx);
671454
f6ccbe
	/* step output */
f6ccbe
	if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
f6ccbe
		if (slbt_output_link(dctx,ectx))
9c9f28
			return slbt_exec_link_exit(
9c9f28
				&depsmeta,
9c9f28
				SLBT_NESTED_ERROR(dctx));
f6ccbe
f6ccbe
	/* spawn */
f6ccbe
	if ((slbt_spawn(ectx,true) < 0) || ectx->exitcode)
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_SPAWN_ERROR(dctx));
f6ccbe
5ee0d1
	/* executable wrapper: finalize */
5ee0d1
	fclose(ectx->fwrapper);
5ee0d1
	ectx->fwrapper = 0;
5ee0d1
5e5804
	if (slbt_create_symlink(
5e5804
			dctx,ectx,
5e5804
			dctx->cctx->output,wraplnk,
5e5804
			false))
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_NESTED_ERROR(dctx));
5e5804
5ee0d1
	if (rename(wrapper,dctx->cctx->output))
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_SYSTEM_ERROR(dctx));
5ee0d1
5ee0d1
	if (chmod(dctx->cctx->output,0755))
9c9f28
		return slbt_exec_link_exit(
9c9f28
			&depsmeta,
9c9f28
			SLBT_SYSTEM_ERROR(dctx));
5ee0d1
3be47d
	return slbt_exec_link_exit(&depsmeta,0);
f6ccbe
}
f6ccbe
b3940a
static int slbt_exec_link_create_library_symlink(
b3940a
	const struct slbt_driver_ctx *	dctx,
b3940a
	struct slbt_exec_ctx *		ectx,
b3940a
	bool				fmajor)
b3940a
{
b3940a
	char	target[PATH_MAX];
b3940a
	char	lnkname[PATH_MAX];
b3940a
112a2b
	if (ectx->relfilename) {
112a2b
		strcpy(target,ectx->relfilename);
112a2b
		sprintf(lnkname,"%s.release",ectx->dsofilename);
112a2b
112a2b
		if (slbt_create_symlink(
112a2b
				dctx,ectx,
112a2b
				target,lnkname,
112a2b
				false))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
112a2b
	} else
112a2b
		sprintf(target,"%s.%d.%d.%d",
112a2b
			ectx->dsofilename,
112a2b
			dctx->cctx->verinfo.major,
112a2b
			dctx->cctx->verinfo.minor,
112a2b
			dctx->cctx->verinfo.revision);
b3940a
b3940a
	if (fmajor)
b3940a
		sprintf(lnkname,"%s.%d",
b3940a
			ectx->dsofilename,
b3940a
			dctx->cctx->verinfo.major);
b3940a
b3940a
	else
b3940a
		strcpy(lnkname,ectx->dsofilename);
b3940a
dbd229
	if (fmajor && (dctx->cctx->drvflags & SLBT_DRIVER_IMAGE_PE))
dbd229
		return slbt_copy_file(
dbd229
			dctx,ectx,
dbd229
			target,lnkname);
dbd229
	else
dbd229
		return slbt_create_symlink(
dbd229
			dctx,ectx,
dbd229
			target,lnkname,
dbd229
			false);
b3940a
}
b3940a
2bd749
int slbt_exec_link(
2bd749
	const struct slbt_driver_ctx *	dctx,
2bd749
	struct slbt_exec_ctx *		ectx)
2bd749
{
2bd749
	int			ret;
a51ace
	const char *		output;
2bd749
	char *			dot;
2bd749
	struct slbt_exec_ctx *	actx;
372423
	bool			fpic;
372423
	bool			fstaticonly;
9112ac
	char			soname[PATH_MAX];
4469ed
	char			soxyz [PATH_MAX];
4469ed
	char			solnk [PATH_MAX];
4469ed
	char			arname[PATH_MAX];
4469ed
c4a389
	/* dry run */
c4a389
	if (dctx->cctx->drvflags & SLBT_DRIVER_DRY_RUN)
c4a389
		return 0;
c4a389
2f9f52
	/* context */
2f9f52
	if (ectx)
2f9f52
		actx = 0;
2f9f52
	else if ((ret = slbt_get_exec_ctx(dctx,&ectx)))
2f9f52
		return SLBT_NESTED_ERROR(dctx);
2f9f52
	else
2f9f52
		actx = ectx;
2f9f52
4469ed
	/* libfoo.so.x.y.z */
4469ed
	if ((size_t)snprintf(soxyz,sizeof(soxyz),"%s%s%s.%d.%d.%d",
2f9f52
				ectx->sonameprefix,
4469ed
				dctx->cctx->libname,
4469ed
				dctx->cctx->settings.dsosuffix,
4469ed
				dctx->cctx->verinfo.major,
4469ed
				dctx->cctx->verinfo.minor,
4469ed
				dctx->cctx->verinfo.revision)
2f9f52
			>= sizeof(soxyz)) {
2f9f52
		slbt_free_exec_ctx(actx);
9c9f28
		return SLBT_BUFFER_ERROR(dctx);
2f9f52
	}
4469ed
4469ed
	/* libfoo.so.x */
4469ed
	sprintf(soname,"%s%s%s.%d",
2f9f52
		ectx->sonameprefix,
4469ed
		dctx->cctx->libname,
4469ed
		dctx->cctx->settings.dsosuffix,
4469ed
		dctx->cctx->verinfo.major);
4469ed
4469ed
	/* libfoo.so */
4469ed
	sprintf(solnk,"%s%s%s",
2f9f52
		ectx->sonameprefix,
4469ed
		dctx->cctx->libname,
4469ed
		dctx->cctx->settings.dsosuffix);
4469ed
4469ed
	/* libfoo.a */
4469ed
	sprintf(arname,"%s%s%s",
4469ed
		dctx->cctx->settings.arprefix,
4469ed
		dctx->cctx->libname,
4469ed
		dctx->cctx->settings.arsuffix);
2bd749
5cc3b3
	/* output suffix */
a51ace
	output = dctx->cctx->output;
a51ace
	dot    = strrchr(output,'.');
5cc3b3
2bd749
	/* .libs directory */
723ef0
	if (slbt_mkdir(ectx->ldirname)) {
723ef0
		slbt_free_exec_ctx(actx);
9c9f28
		return SLBT_SYSTEM_ERROR(dctx);
723ef0
	}
2bd749
5cc3b3
	/* non-pic libfoo.a */
5cc3b3
	if (dot && !strcmp(dot,".a"))
02ae4d
		if (slbt_exec_link_create_archive(dctx,ectx,output,false,false)) {
5cc3b3
			slbt_free_exec_ctx(actx);
9c9f28
			return SLBT_NESTED_ERROR(dctx);
5cc3b3
		}
5cc3b3
372423
	/* fpic, fstaticonly */
372423
	if (dctx->cctx->drvflags & SLBT_DRIVER_ALL_STATIC) {
372423
		fstaticonly = true;
372423
		fpic        = false;
f782a1
	} else if (dctx->cctx->drvflags & SLBT_DRIVER_DISABLE_SHARED) {
f782a1
		fstaticonly = true;
f782a1
		fpic        = false;
2c2879
	} else if (dctx->cctx->drvflags & SLBT_DRIVER_DISABLE_STATIC) {
2c2879
		fstaticonly = false;
2c2879
		fpic        = true;
372423
	} else if (dctx->cctx->drvflags & SLBT_DRIVER_SHARED) {
372423
		fstaticonly = false;
372423
		fpic        = true;
372423
	} else {
372423
		fstaticonly = false;
372423
		fpic        = false;
372423
	}
372423
a0c318
	/* pic libfoo.a */
a0c318
	if (dot && !strcmp(dot,".la"))
a0c318
		if (slbt_exec_link_create_archive(
a0c318
				dctx,ectx,
a0c318
				ectx->arfilename,
02ae4d
				fpic,true)) {
a0c318
			slbt_free_exec_ctx(actx);
9c9f28
			return SLBT_NESTED_ERROR(dctx);
a0c318
		}
a0c318
372423
	/* -all-static library */
372423
	if (fstaticonly && dctx->cctx->libname)
372423
		if (slbt_create_symlink(
372423
				dctx,ectx,
372423
				"/dev/null",
372423
				ectx->dsofilename,
372423
				false))
9c9f28
			return SLBT_NESTED_ERROR(dctx);
372423
b3940a
	/* dynamic library */
372423
	if (dot && !strcmp(dot,".la") && dctx->cctx->rpath && !fstaticonly) {
b3940a
		/* linking: libfoo.so.x.y.z */
b3940a
		if (slbt_exec_link_create_library(
b3940a
				dctx,ectx,
112a2b
				ectx->dsofilename,
112a2b
				ectx->relfilename)) {
b3940a
			slbt_free_exec_ctx(actx);
9c9f28
			return SLBT_NESTED_ERROR(dctx);
b3940a
		}
b3940a
867d1e
		if (!(dctx->cctx->drvflags & SLBT_DRIVER_AVOID_VERSION)) {
867d1e
			/* symlink: libfoo.so.x --> libfoo.so.x.y.z */
867d1e
			if (slbt_exec_link_create_library_symlink(
867d1e
					dctx,ectx,
867d1e
					true)) {
867d1e
				slbt_free_exec_ctx(actx);
9c9f28
				return SLBT_NESTED_ERROR(dctx);
867d1e
			}
b3940a
867d1e
			/* symlink: libfoo.so --> libfoo.so.x.y.z */
867d1e
			if (slbt_exec_link_create_library_symlink(
867d1e
					dctx,ectx,
867d1e
					false)) {
867d1e
				slbt_free_exec_ctx(actx);
9c9f28
				return SLBT_NESTED_ERROR(dctx);
867d1e
			}
112a2b
		} else if (ectx->relfilename) {
112a2b
			/* symlink: libfoo.so --> libfoo-x.y.z.so */
112a2b
			if (slbt_exec_link_create_library_symlink(
112a2b
					dctx,ectx,
112a2b
					false)) {
112a2b
				slbt_free_exec_ctx(actx);
9c9f28
				return SLBT_NESTED_ERROR(dctx);
112a2b
			}
b3940a
		}
9112ac
9112ac
		/* PE import libraries */
9112ac
		if (dctx->cctx->drvflags & SLBT_DRIVER_IMAGE_PE) {
ff4b97
			/* libfoo.x.lib.a */
9112ac
			if (slbt_exec_link_create_import_library(
9112ac
					dctx,ectx,
ff4b97
					ectx->pimpfilename,
9112ac
					ectx->deffilename,
4fdf35
					soname,
4fdf35
					true))
9c9f28
				return SLBT_NESTED_ERROR(dctx);
9112ac
ff4b97
			/* symlink: libfoo.lib.a --> libfoo.x.lib.a */
ff4b97
			if (slbt_create_symlink(
9112ac
					dctx,ectx,
9112ac
					ectx->pimpfilename,
ff4b97
					ectx->dimpfilename,
ff4b97
					false))
9c9f28
				return SLBT_NESTED_ERROR(dctx);
9112ac
9112ac
			/* libfoo.x.y.z.lib.a */
9112ac
			if (slbt_exec_link_create_import_library(
9112ac
					dctx,ectx,
9112ac
					ectx->vimpfilename,
9112ac
					ectx->deffilename,
4469ed
					soxyz,
4fdf35
					false))
9c9f28
				return SLBT_NESTED_ERROR(dctx);
9112ac
		}
b3940a
	}
b3940a
f6ccbe
	/* executable */
a02c0e
	if (!dctx->cctx->libname) {
f6ccbe
		/* linking: .libs/exefilename */
f6ccbe
		if (slbt_exec_link_create_executable(
f6ccbe
				dctx,ectx,
f6ccbe
				ectx->exefilename)) {
f6ccbe
			slbt_free_exec_ctx(actx);
9c9f28
			return SLBT_NESTED_ERROR(dctx);
f6ccbe
		}
f6ccbe
	}
f6ccbe
2bd749
	/* no wrapper? */
5cc3b3
	if (!dot || strcmp(dot,".la")) {
2bd749
		slbt_free_exec_ctx(actx);
2bd749
		return 0;
2bd749
	}
2bd749
a9cfe4
	/* library wrapper */
a9cfe4
	if (slbt_create_library_wrapper(
a9cfe4
			dctx,ectx,
a9cfe4
			arname,soname,soxyz,solnk)) {
2bd749
		slbt_free_exec_ctx(actx);
9c9f28
		return SLBT_NESTED_ERROR(dctx);
2bd749
	}
2bd749
4c76f7
	/* wrapper symlink */
9c9f28
	if ((ret = slbt_create_symlink(
a9cfe4
			dctx,ectx,
a9cfe4
			output,
a9cfe4
			ectx->lafilename,
9c9f28
			true)))
9c9f28
		SLBT_NESTED_ERROR(dctx);
4c76f7
26ea30
	/* .lai wrapper symlink */
26ea30
	if (ret == 0)
9c9f28
		if ((ret = slbt_create_symlink(
26ea30
				dctx,ectx,
26ea30
				output,
26ea30
				ectx->laifilename,
9c9f28
				true)))
9c9f28
			SLBT_NESTED_ERROR(dctx);
26ea30
2bd749
	/* all done */
2bd749
	slbt_free_exec_ctx(actx);
2bd749
4469ed
	return ret;
2bd749
}