driver: utility api: added mdso_create_implib_archive().

1 files changed, 83 insertions, 0 deletions

diff --git a/src/util/mdso_create_implib_archive.c b/src/util/mdso_create_implib_archive.c
new file mode 100644
index 0000000..323b318
--- /dev/null
+++ b/src/util/mdso_create_implib_archive.c
@@ -0,0 +1,83 @@
+/****************************************************************/
+/*  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 <stdlib.h>
+#include <string.h>
+
+#include <mdso/mdso.h>
+#include "mdso_errinfo_impl.h"
+
+static void mdso_free_uctx_vector(struct mdso_unit_ctx ** uctxv)
+{
+	struct mdso_unit_ctx **	puctx;
+
+	for (puctx=uctxv; *puctx; puctx++)
+		mdso_free_unit_ctx(*puctx);
+
+	free(uctxv);
+}
+
+int  mdso_create_implib_archive(const struct mdso_driver_ctx * dctx)
+{
+	int			ret;
+	FILE *			fout;
+	size_t			nsym;
+	struct mdso_unit_ctx **	uctxv;
+	struct mdso_unit_ctx **	puctx;
+	const char * const *	dsym;
+	const char **		unit;
+	const char **		psym;
+	const char **		symv;
+	const char *		asym[512];
+
+	if (!dctx->cctx->implib)
+		return MDSO_CUSTOM_ERROR(dctx,MDSO_ERR_INVALID_NAME);
+
+	if (!(fout = mdso_create_archive(dctx,dctx->cctx->implib)))
+		return MDSO_NESTED_ERROR(dctx);
+
+	for (unit=dctx->units; *unit; unit++)
+		(void)0;
+
+	if (!(uctxv = calloc(++unit - dctx->units,sizeof(*uctxv))))
+		return MDSO_SYSTEM_ERROR(dctx);
+
+	for (puctx=uctxv,unit=dctx->units; *unit; unit++) {
+		if (mdso_get_unit_ctx(dctx,*unit,puctx)) {
+			mdso_free_uctx_vector(uctxv);
+			return MDSO_NESTED_ERROR(dctx);
+		}
+	}
+
+	for (nsym=0,puctx=uctxv; *puctx; puctx++)
+		for (dsym=puctx[0]->syms; *dsym; dsym++)
+			nsym++;
+
+	if (nsym < 512) {
+		memset(asym,0,sizeof(asym));
+		symv = asym;
+
+	} else if (!(symv = calloc(nsym+1,sizeof(const char *)))) {
+		mdso_free_uctx_vector(uctxv);
+		return MDSO_SYSTEM_ERROR(dctx);
+	}
+
+	for (psym=symv,puctx=uctxv; *puctx; puctx++)
+		for (dsym=puctx[0]->syms; *dsym; dsym++)
+			*psym++ = *dsym;
+
+	ret = mdso_argen_common(dctx,symv,fout,0);
+	fclose(fout);
+
+	if (symv != asym)
+		free(symv);
+
+	mdso_free_uctx_vector(uctxv);
+
+	return ret ? MDSO_NESTED_ERROR(dctx) : 0;
+}