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#include <stdlib.h>
#include <merror.h>
#include <string.h>
#include <sys/stat.h>
#include "link.h"
static int load_objects(struct linker *linker)
{
linker->objects = malloc(sizeof(struct object) *
linker->args->in_count);
linker->obj_len = 0;
if (linker->objects == NULL) {
ERROR("cannot alloc");
return M_ERROR;
}
for (int i = 0; i < linker->args->in_count; i++) {
char *path = linker->args->in_files[i];
struct object *obj = &linker->objects[linker->obj_len];
// check for duplicate
for (size_t j = 0; j < linker->obj_len; j++) {
const char *dupname = linker->objects[j].name;
struct stat st, st2;
if (stat(path, &st) || stat(dupname, &st2))
continue;
if (st.st_ino == st2.st_ino)
goto skip_obj;
}
// load obj file
linker->obj_len++;
if (object_load(obj, path))
return M_ERROR;
skip_obj:
}
return M_SUCCESS;
}
static void linker_free(struct linker *linker)
{
if (linker->objects != NULL) {
for (size_t i = 0; i < linker->obj_len; i++)
object_free(&linker->objects[i]);
free(linker->objects);
}
}
int link_files(struct linker_arguments args) {
struct linker linker;
linker.args = &args;
int res = M_SUCCESS;
if (res == M_SUCCESS)
res = load_objects(&linker);
linker_free(&linker);
return res;
}
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