/*******************************************************************/

/*  slibtool: a skinny libtool implementation, written in C        */

/*  Copyright (C) 2016--2024  SysDeer Technologies, LLC            */

/*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */

/*******************************************************************/

#ifndef SLIBTOOL_DRIVER_IMPL_H

#define SLIBTOOL_DRIVER_IMPL_H

#include <stdint.h>

#include <stdio.h>

#include <sys/stat.h>

#include <sys/types.h>

#include <slibtool/slibtool.h>

#include "slibtool_dprintf_impl.h"

#include "slibtool_mapfile_impl.h"

#include "slibtool_visibility_impl.h"

#include "argv/argv.h"

#define SLBT_OPTV_ELEMENTS 128

extern const struct argv_option slbt_default_options[];

enum app_tags {

	TAG_HELP,

	TAG_HELP_ALL,

	TAG_VERSION,

	TAG_INFO,

	TAG_CONFIG,

	TAG_DUMPMACHINE,

	TAG_DEBUG,

	TAG_DRY_RUN,

	TAG_FEATURES,

	TAG_LEGABITS,

	TAG_MODE,

	TAG_FINISH,

	TAG_WARNINGS,

	TAG_ANNOTATE,

	TAG_DEPS,

	TAG_SILENT,

	TAG_TAG,

	TAG_CCWRAP,

	TAG_VERBOSE,

	TAG_TARGET,

	TAG_HOST,

	TAG_FLAVOR,

	TAG_AR,

	TAG_AS,

	TAG_RANLIB,

	TAG_WINDRES,

	TAG_DLLTOOL,

	TAG_MDSO,

	TAG_IMPLIB,

	TAG_OUTPUT,

	TAG_BINDIR,

	TAG_LDRPATH,

	TAG_SHREXT,

	TAG_RPATH,

	TAG_SYSROOT,

	TAG_RELEASE,

	TAG_OBJECTLIST,

	TAG_DLOPEN,

	TAG_DLPREOPEN,

	TAG_EXPORT_DYNAMIC,

	TAG_EXPSYMS_FILE,

	TAG_EXPSYMS_REGEX,

	TAG_VERSION_INFO,

	TAG_VERSION_NUMBER,

	TAG_NO_SUPPRESS,

	TAG_NO_INSTALL,

	TAG_PREFER_PIC,

	TAG_PREFER_NON_PIC,

	TAG_HEURISTICS,

	TAG_SHARED,

	TAG_STATIC,

	TAG_STATIC_LIBTOOL_LIBS,

	TAG_ALL_STATIC,

	TAG_DISABLE_STATIC,

	TAG_DISABLE_SHARED,

	TAG_NO_UNDEFINED,

	TAG_MODULE,

	TAG_AVOID_VERSION,

	TAG_COMPILER_FLAG,

	TAG_VERBATIM_FLAG,

	TAG_THREAD_SAFE,

	TAG_WEAK,

	/* ar mode */

	TAG_AR_HELP,

	TAG_AR_VERSION,

	TAG_AR_CHECK,

	TAG_AR_PRINT,

	TAG_AR_MAPFILE,

	TAG_AR_NOSORT,

	TAG_AR_REGEX,

	TAG_AR_PRETTY,

	TAG_AR_POSIX,

	TAG_AR_YAML,

	TAG_AR_MERGE,

	TAG_AR_OUTPUT,

	TAG_AR_VERBOSE,

};

struct slbt_split_vector {

	char *		dargs;

	char **		dargv;

	char **		targv;

	char **		cargv;

};

struct slbt_host_strs {

	char *		machine;

	char *		host;

	char *		flavor;

	char *		ar;

	char *		as;

	char *		ranlib;

	char *		windres;

	char *		dlltool;

	char *		mdso;

	char **		ar_argv;

	char **		as_argv;

	char **		ranlib_argv;

	char **		windres_argv;

	char **		dlltool_argv;

	char **		mdso_argv;

};

struct slbt_obj_list {

	const char *	name;

	void *		addr;

	size_t		size;

	int		objc;

	char **		objv;

};

struct slbt_driver_ctx_impl {

	struct argv_meta *		meta;

	struct slbt_common_ctx          cctx;

	struct slbt_driver_ctx          ctx;

	struct slbt_host_strs           host;

	struct slbt_host_strs           ahost;

	struct slbt_fd_ctx              fdctx;

	struct slbt_map_info            lconf;

	struct slbt_obj_list *          objlistv;

	const struct slbt_archive_ctx * arctx;

	const char *                    arpath;

	char *                          libname;

	char *                          dargs;

	char **                         dargv;

	char **                         targv;

	char **                         cargv;

	char **                         envp;

	struct slbt_error_info**        errinfp;

	struct slbt_error_info**        erricap;

	struct slbt_error_info *        erriptr[64];

	struct slbt_error_info          erribuf[64];

};

struct slbt_driver_ctx_alloc {

	struct slbt_driver_ctx_impl	ctx;

	uint64_t			guard;

};

struct slbt_exec_ctx_impl {

	const struct slbt_driver_ctx *	dctx;

	struct slbt_symlist_ctx *       sctx;

	struct slbt_exec_ctx            ctx;

	int                             argc;

	char *                          args;

	char *                          shadow;

	char *                          dsoprefix;

	size_t                          size;

	int                             fdwrapper;

	char **                         lout[2];

	char **                         mout[2];

	char *                          vbuffer[];

};

struct slbt_archive_ctx_impl {

	const struct slbt_driver_ctx *	dctx;

	const char *			path;

	struct slbt_raw_archive		map;

	struct slbt_archive_meta *	meta;

	struct slbt_archive_ctx		actx;

};

struct slbt_symlist_ctx_impl {

	const struct slbt_driver_ctx *	dctx;

	const char *                    path;

	char *                          pathbuf;

	char *                          symstrs;

	const char **                   symstrv;

	struct slbt_symlist_ctx         sctx;

};

const char * slbt_program_name(const char *);

int slbt_optv_init(

	const struct argv_option[],

	const struct argv_option **);

uint64_t slbt_argv_flags(uint64_t flags);

void slbt_argv_scan(

	char **				argv,

	const struct argv_option **	optv,

	struct argv_ctx *		ctx,

	struct argv_meta *		meta);

struct argv_meta * slbt_argv_get(

	char **,

	const struct argv_option **,

	int flags,

	int fd);

void slbt_argv_free(struct argv_meta *);

void slbt_argv_usage(

	int		fd,

	const char *	header,

	const struct	argv_option **,

	const char *	mode);

void slbt_argv_usage_plain(

	int		fd,

	const char *	header,

	const struct	argv_option **,

	const char *	mode);

int slbt_driver_usage(

	int				fdout,

	const char *			program,

	const char *			arg,

	const struct argv_option **	optv,

	struct argv_meta *		meta,

	struct slbt_split_vector *	sargv,

	struct slbt_obj_list *		objlistv,

	int				noclr);

int slbt_split_argv(

	char **				argv,

	uint64_t			flags,

	struct slbt_split_vector *	sargv,

	struct slbt_obj_list **		aobjlistv,

	int				fderr,

	int				fdcwd);

int slbt_init_version_info(

	struct slbt_driver_ctx_impl *	ictx,

	struct slbt_version_info *	verinfo);

int slbt_init_host_params(

	const struct slbt_driver_ctx *	dctx,

	const struct slbt_common_ctx *	cctx,

	struct slbt_host_strs *		drvhost,

	struct slbt_host_params *	host,

	struct slbt_host_params *	cfgmeta,

	const char *                    cfgmeta_host,

	const char *                    cfgmeta_ar,

	const char *                    cfgmeta_as,

	const char *                    cfgmeta_ranlib,

	const char *                    cfgmeta_dlltool);

void slbt_free_host_params(struct slbt_host_strs * host);

int slbt_init_link_params(struct slbt_driver_ctx_impl * ctx);

void slbt_init_flavor_settings(

	struct slbt_common_ctx *	cctx,

	const struct slbt_host_params * ahost,

	struct slbt_flavor_settings *	psettings);

int slbt_init_ldrpath(

	struct slbt_common_ctx *  cctx,

	struct slbt_host_params * host);

void slbt_reset_placeholders   (struct slbt_exec_ctx *);

void slbt_disable_placeholders (struct slbt_exec_ctx *);

static inline struct slbt_archive_ctx_impl * slbt_get_archive_ictx(const struct slbt_archive_ctx * actx)

{

	uintptr_t addr;

	if (actx) {

		addr = (uintptr_t)actx - offsetof(struct slbt_archive_ctx_impl,actx);

		return (struct slbt_archive_ctx_impl *)addr;

	}

	return 0;

}

static inline struct slbt_driver_ctx_impl * slbt_get_driver_ictx(const struct slbt_driver_ctx * dctx)

{

	uintptr_t addr;

	if (dctx) {

		addr = (uintptr_t)dctx - offsetof(struct slbt_driver_ctx_impl,ctx);

		return (struct slbt_driver_ctx_impl *)addr;

	}

	return 0;

}

static inline struct slbt_symlist_ctx_impl * slbt_get_symlist_ictx(const struct slbt_symlist_ctx * sctx)

{

	uintptr_t addr;

	if (sctx) {

		addr = (uintptr_t)sctx - offsetof(struct slbt_symlist_ctx_impl,sctx);

		return (struct slbt_symlist_ctx_impl *)addr;

	}

	return 0;

}

static inline void slbt_driver_set_arctx(

	const struct slbt_driver_ctx *  dctx,

	const struct slbt_archive_ctx * arctx,

	const char *                    arpath)

{

	struct slbt_driver_ctx_impl * ictx;

	ictx         = slbt_get_driver_ictx(dctx);

	ictx->arctx  = arctx;

	ictx->arpath = arpath;

}

static inline char ** slbt_driver_envp(const struct slbt_driver_ctx * dctx)

{

	struct slbt_driver_ctx_impl * ictx;

	ictx = slbt_get_driver_ictx(dctx);

	return ictx->envp;

}

static inline int slbt_driver_fdin(const struct slbt_driver_ctx * dctx)

{

	struct slbt_fd_ctx fdctx;

	slbt_lib_get_driver_fdctx(dctx,&fdctx);

	return fdctx.fdin;

}

static inline int slbt_driver_fdout(const struct slbt_driver_ctx * dctx)

{

	struct slbt_fd_ctx fdctx;

	slbt_lib_get_driver_fdctx(dctx,&fdctx);

	return fdctx.fdout;

}

static inline int slbt_driver_fderr(const struct slbt_driver_ctx * dctx)

{

	struct slbt_fd_ctx fdctx;

	slbt_lib_get_driver_fdctx(dctx,&fdctx);

	return fdctx.fderr;

}

static inline int slbt_driver_fdlog(const struct slbt_driver_ctx * dctx)

{

	struct slbt_fd_ctx fdctx;

	slbt_lib_get_driver_fdctx(dctx,&fdctx);

	return fdctx.fdlog;

}

static inline int slbt_driver_fdcwd(const struct slbt_driver_ctx * dctx)

{

	struct slbt_fd_ctx fdctx;

	slbt_lib_get_driver_fdctx(dctx,&fdctx);

	return fdctx.fdcwd;

}

static inline int slbt_driver_fddst(const struct slbt_driver_ctx * dctx)

{

	struct slbt_fd_ctx fdctx;

	slbt_lib_get_driver_fdctx(dctx,&fdctx);

	return fdctx.fddst;

}

static inline struct slbt_exec_ctx_impl * slbt_get_exec_ictx(const struct slbt_exec_ctx * ectx)

{

	uintptr_t addr;

	addr = (uintptr_t)ectx - offsetof(struct slbt_exec_ctx_impl,ctx);

	return (struct slbt_exec_ctx_impl *)addr;

}

static inline int slbt_exec_get_fdwrapper(const struct slbt_exec_ctx * ectx)

{

	struct slbt_exec_ctx_impl * ictx;

	ictx = slbt_get_exec_ictx(ectx);

	return ictx->fdwrapper;

}

static inline void slbt_exec_set_fdwrapper(const struct slbt_exec_ctx * ectx, int fd)

{

	struct slbt_exec_ctx_impl * ictx;

	ictx = slbt_get_exec_ictx(ectx);

	ictx->fdwrapper = fd;

}

static inline void slbt_exec_close_fdwrapper(const struct slbt_exec_ctx * ectx)

{

	struct slbt_exec_ctx_impl * ictx;

	ictx = slbt_get_exec_ictx(ectx);

	close(ictx->fdwrapper);

	ictx->fdwrapper = (-1);

}

#endif