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-rw-r--r--src/logic/linkcmd/slbt_linkcmd_archive.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/src/logic/linkcmd/slbt_linkcmd_archive.c b/src/logic/linkcmd/slbt_linkcmd_archive.c
new file mode 100644
index 0000000..be8252f
--- /dev/null
+++ b/src/logic/linkcmd/slbt_linkcmd_archive.c
@@ -0,0 +1,158 @@
+/*******************************************************************/
+/* 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"
+#include "slibtool_spawn_impl.h"
+
+static int slbt_exec_link_create_noop_symlink(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ const char * arfilename)
+{
+ struct stat st;
+ int fdcwd;
+
+ /* fdcwd */
+ fdcwd = slbt_driver_fdcwd(dctx);
+
+ /* file exists? */
+ if (!fstatat(fdcwd,arfilename,&st,AT_SYMLINK_NOFOLLOW))
+ return 0;
+
+ /* needed? */
+ if (errno == ENOENT) {
+ if (slbt_create_symlink(
+ dctx,ectx,
+ "/dev/null",
+ arfilename,
+ SLBT_SYMLINK_LITERAL))
+ return SLBT_NESTED_ERROR(dctx);
+ return 0;
+ }
+
+ return SLBT_SYSTEM_ERROR(dctx,arfilename);
+}
+
+static int slbt_exec_link_remove_file(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ const char * target)
+{
+ int fdcwd;
+
+ (void)ectx;
+
+ /* fdcwd */
+ fdcwd = slbt_driver_fdcwd(dctx);
+
+ /* remove target (if any) */
+ if (!unlinkat(fdcwd,target,0) || (errno == ENOENT))
+ return 0;
+
+ return SLBT_SYSTEM_ERROR(dctx,0);
+}
+
+int slbt_exec_link_create_archive(
+ const struct slbt_driver_ctx * dctx,
+ struct slbt_exec_ctx * ectx,
+ const char * arfilename,
+ bool fpic)
+{
+ int fdcwd;
+ char ** aarg;
+ char ** parg;
+ char program[PATH_MAX];
+ char output [PATH_MAX];
+
+ /* -disable-static? */
+ if (dctx->cctx->drvflags & SLBT_DRIVER_DISABLE_STATIC)
+ if (dctx->cctx->rpath)
+ return slbt_exec_link_create_noop_symlink(
+ dctx,ectx,arfilename);
+
+ /* initial state */
+ slbt_reset_arguments(ectx);
+
+ /* placeholders */
+ slbt_reset_placeholders(ectx);
+
+ /* alternate program (ar, ranlib) */
+ ectx->program = program;
+
+ /* output */
+ if (slbt_snprintf(output,sizeof(output),
+ "%s",arfilename) < 0)
+ return SLBT_BUFFER_ERROR(dctx);
+
+ /* ar alternate argument vector */
+ if (slbt_snprintf(program,sizeof(program),
+ "%s",dctx->cctx->host.ar) < 0)
+ return SLBT_BUFFER_ERROR(dctx);
+
+
+ /* fdcwd */
+ fdcwd = slbt_driver_fdcwd(dctx);
+
+ /* input argument adjustment */
+ aarg = ectx->altv;
+ *aarg++ = program;
+ *aarg++ = "-crs";
+ *aarg++ = output;
+
+ for (parg=ectx->cargv; *parg; parg++)
+ if (slbt_adjust_object_argument(*parg,fpic,!fpic,fdcwd))
+ *aarg++ = *parg;
+
+ *aarg = 0;
+ ectx->argv = ectx->altv;
+
+ /* step output */
+ if (!(dctx->cctx->drvflags & SLBT_DRIVER_SILENT))
+ if (slbt_output_link(dctx,ectx))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* remove old archive as needed */
+ if (slbt_exec_link_remove_file(dctx,ectx,output))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* .deps */
+ if (slbt_exec_link_create_dep_file(
+ dctx,ectx,ectx->cargv,
+ arfilename,true))
+ return SLBT_NESTED_ERROR(dctx);
+
+ /* ar spawn */
+ if ((slbt_spawn(ectx,true) < 0) && (ectx->pid < 0)) {
+ return SLBT_SPAWN_ERROR(dctx);
+
+ } else if (ectx->exitcode) {
+ return SLBT_CUSTOM_ERROR(
+ dctx,
+ SLBT_ERR_AR_ERROR);
+ }
+
+ /* input objects associated with .la archives */
+ for (parg=ectx->cargv; *parg; parg++)
+ if (slbt_adjust_wrapper_argument(*parg,true))
+ if (slbt_archive_import(dctx,ectx,output,*parg))
+ return SLBT_NESTED_ERROR(dctx);
+
+ return 0;
+}