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Attempt load dynamic binaries with the loader

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This commit is contained in:
Kevin Lange 2016-12-02 12:54:01 +09:00
parent f57be44604
commit 03962d45a5
1 changed files with 26 additions and 0 deletions
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26
kernel/misc/elf.c
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@ -40,11 +40,37 @@ int exec_elf(char * path, fs_node_t * file, int argc, char ** argv, char ** env)
return -1;
}
/* See if it's a dyn */
release_directory_for_exec(current_directory);
invalidate_page_tables();
current_process->image.entry = 0xFFFFFFFF;
for (uintptr_t x = 0; x < (uint32_t)header->e_phentsize * header->e_phnum; x += header->e_phentsize) {
Elf32_Phdr * phdr = (Elf32_Phdr *)((uintptr_t)header + (header->e_phoff + x));
if (phdr->p_type == PT_DYNAMIC) {
/* Dynamic! */
free(header);
close_fs(file);
/* Find interpreter? */
debug_print(WARNING, "Dynamic executable");
unsigned int nargc = argc + 1;
char * args[nargc];
args[0] = "ld.so";
args[1] = strdup(current_process->name);
int j = 2;
for (int i = 1; i < argc; ++i, ++j) {
args[j] = argv[i];
}
args[j] = NULL;
return exec("/lib/ld.so", nargc, args, env);
}
}
/* Load the loadable segments from the binary */
for (uintptr_t x = 0; x < (uint32_t)header->e_shentsize * header->e_shnum; x += header->e_shentsize) {
/* read a section header */