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

/*  mdso: midipix dso scavenger                                 */

/*  Copyright (C) 2015--2017  Z. Gilboa                         */

/*  Released under GPLv2 and GPLv3; see COPYING.MDSO.           */

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

#include <stdint.h>

#include <stdio.h>

#include <string.h>

#include <mdso/mdso.h>

#include "mdso_driver_impl.h"

#include "mdso_errinfo_impl.h"

static void mdso_init_asmname(char * buf, const char * fmt, const char * str)

{

	char			hexstr[24];

	long long unsigned int	crc64;

	if (strlen(str) + strlen(fmt) > (PATH_MAX - 1)) {

		crc64 = mdso_crc64_mbstr((const unsigned char *)str,0);

		sprintf(hexstr,"%llx",crc64);

		sprintf(buf,fmt,hexstr);

	} else

		sprintf(buf,fmt,str);

}

int  mdso_create_implib_sources(const struct mdso_driver_ctx * dctx)

{

	struct mdso_unit_ctx *	uctx;

	const char **		unit;

	int			fdout;

	char			asmname[PATH_MAX];

	const char * const *	sym;

	int			ret;

	/* symentry */

	for (unit=dctx->units; *unit; unit++) {

		if (mdso_get_unit_ctx(dctx,*unit,&uctx))

			return MDSO_NESTED_ERROR(dctx);

		for (sym=uctx->syms; *sym; sym++) {

			mdso_init_asmname(asmname,".%s_symentry.s",*sym);

			if ((fdout = mdso_create_asmsrc(dctx,asmname)) < 0)

				return MDSO_NESTED_ERROR(dctx);

			ret = mdso_asmgen_symentry(dctx,*sym,fdout);

			if (fdout != mdso_driver_fdout(dctx))

				close(fdout);

			if (ret < 0)

				return MDSO_NESTED_ERROR(dctx);

		}

		mdso_free_unit_ctx(uctx);

	}

	/* dsometa */

	mdso_init_asmname(asmname,".dsometa_%s.s",dctx->cctx->libname);

	if ((fdout = mdso_create_asmsrc(dctx,asmname)) < 0)

		return MDSO_NESTED_ERROR(dctx);

	ret = mdso_asmgen_dsometa(dctx,fdout);

	if (fdout != mdso_driver_fdout(dctx))

		close(fdout);

	return (ret < 0) ? MDSO_NESTED_ERROR(dctx) : 0;

}