link mode: move the host tag logic to its own translation unit.

1 files changed, 69 insertions, 0 deletions

diff --git a/src/logic/linkcmd/slbt_linkcmd_host.c b/src/logic/linkcmd/slbt_linkcmd_host.c
new file mode 100644
index 0000000..060975e
--- /dev/null
+++ b/src/logic/linkcmd/slbt_linkcmd_host.c
@@ -0,0 +1,69 @@
+/*******************************************************************/
+/*  slibtool: a skinny libtool implementation, written in C        */
+/*  Copyright (C) 2016--2021  SysDeer Technologies, LLC            */
+/*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+#include <slibtool/slibtool.h>
+#include "slibtool_driver_impl.h"
+#include "slibtool_errinfo_impl.h"
+#include "slibtool_linkcmd_impl.h"
+#include "slibtool_mapfile_impl.h"
+#include "slibtool_metafile_impl.h"
+#include "slibtool_snprintf_impl.h"
+#include "slibtool_symlink_impl.h"
+
+int slbt_exec_link_create_host_tag(
+	const struct slbt_driver_ctx *	dctx,
+	struct slbt_exec_ctx *		ectx,
+	char *				deffilename)
+{
+	char *  slash;
+	char	hosttag[PATH_MAX];
+	char	hostlnk[PATH_MAX];
+
+	/* libfoo.so.def.{flavor} */
+	if (slbt_snprintf(hosttag,
+			sizeof(hosttag),
+			"%s.%s",
+			deffilename,
+			dctx->cctx->host.flavor) < 0)
+		return SLBT_BUFFER_ERROR(dctx);
+
+	if (slbt_snprintf(hostlnk,
+			sizeof(hostlnk),
+			"%s.host",
+			deffilename) < 0)
+		return SLBT_BUFFER_ERROR(dctx);
+
+	/* libfoo.so.def is under .libs/ */
+	if (!(slash = strrchr(deffilename,'/')))
+		return SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_LINK_FLOW);
+
+	if (slbt_create_symlink(
+		dctx,ectx,
+		deffilename,
+		hosttag,
+		SLBT_SYMLINK_DEFAULT))
+	return SLBT_NESTED_ERROR(dctx);
+
+	/* libfoo.so.def.{flavor} is under .libs/ */
+	if (!(slash = strrchr(hosttag,'/')))
+		return SLBT_CUSTOM_ERROR(dctx,SLBT_ERR_LINK_FLOW);
+
+	if (slbt_create_symlink(
+			dctx,ectx,
+			++slash,
+			hostlnk,
+			SLBT_SYMLINK_DEFAULT))
+		return SLBT_NESTED_ERROR(dctx);
+
+	return 0;
+}