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-rw-r--r--gcc/gcc.c48
1 files changed, 37 insertions, 11 deletions
diff --git a/gcc/gcc.c b/gcc/gcc.c
index cad8444..f5e70ca 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -299,6 +299,7 @@ static const char *handle_braces PARAMS ((const char *));
static char *save_string PARAMS ((const char *, int));
static void set_collect_gcc_options PARAMS ((void));
static int do_spec_1 PARAMS ((const char *, int, const char *));
+static int do_spec_2 PARAMS ((const char *));
static const char *find_file PARAMS ((const char *));
static int is_directory PARAMS ((const char *, const char *, int));
static void validate_switches PARAMS ((const char *));
@@ -641,6 +642,10 @@ proper position among the other output files. */
# endif
#endif
+#ifndef STARTFILE_PREFIX_SPEC
+# define STARTFILE_PREFIX_SPEC ""
+#endif
+
static const char *asm_debug = ASM_DEBUG_SPEC;
static const char *cpp_spec = CPP_SPEC;
static const char *cpp_predefines = CPP_PREDEFINES;
@@ -658,6 +663,7 @@ static const char *switches_need_spaces = SWITCHES_NEED_SPACES;
static const char *linker_name_spec = LINKER_NAME;
static const char *link_command_spec = LINK_COMMAND_SPEC;
static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
+static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
/* Standard options to cpp, cc1, and as, to reduce duplication in specs.
There should be no need to override these in target dependent files,
@@ -1388,6 +1394,7 @@ static struct spec_list static_specs[] =
INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
+ INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
};
#ifdef EXTRA_SPECS /* additional specs needed */
@@ -4133,15 +4140,7 @@ do_spec (spec)
{
int value;
- clear_args ();
- arg_going = 0;
- delete_this_arg = 0;
- this_is_output_file = 0;
- this_is_library_file = 0;
- input_from_pipe = 0;
- suffix_subst = NULL;
-
- value = do_spec_1 (spec, 0, NULL);
+ value = do_spec_2 (spec);
/* Force out any unfinished command.
If -pipe, this forces out the last command if it ended in `|'. */
@@ -4159,6 +4158,21 @@ do_spec (spec)
return value;
}
+static int
+do_spec_2 (spec)
+ const char *spec;
+{
+ clear_args ();
+ arg_going = 0;
+ delete_this_arg = 0;
+ this_is_output_file = 0;
+ this_is_library_file = 0;
+ input_from_pipe = 0;
+ suffix_subst = NULL;
+
+ return do_spec_1 (spec, 0, NULL);
+}
+
/* Process the sub-spec SPEC as a portion of a larger spec.
This is like processing a whole spec except that we do
not initialize at the beginning and we do not supply a
@@ -5838,8 +5852,10 @@ main (argc, argv)
if (access (specs_file, R_OK) == 0)
read_specs (specs_file, TRUE);
- /* If not cross-compiling, look for startfiles in the standard places. */
- if (*cross_compile == '0')
+ /* If not cross-compiling, look for startfiles in the standard places.
+ Similarly, don't add the standard prefixes if startfile handling
+ will be under control of startfile_prefix_spec. */
+ if (*cross_compile == '0' || *startfile_prefix_spec == 0)
{
if (*md_exec_prefix)
{
@@ -5897,6 +5913,16 @@ main (argc, argv)
"BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL);
}
+ if (*startfile_prefix_spec != 0
+ && do_spec_2 (startfile_prefix_spec) == 0
+ && do_spec_1 (" ", 0, NULL) == 0)
+ {
+ int ndx;
+ for (ndx = 0; ndx < argbuf_index; ndx++)
+ add_prefix (&startfile_prefixes, argbuf[ndx], "BINUTILS",
+ PREFIX_PRIORITY_LAST, 0, NULL);
+ }
+
/* Process any user specified specs in the order given on the command
line. */
for (uptr = user_specs_head; uptr; uptr = uptr->next)