diff options
| author | Marvin Borner | 2020-05-19 21:55:27 +0200 |
|---|---|---|
| committer | Marvin Borner | 2020-05-19 21:55:27 +0200 |
| commit | 61c7bf940d9f6dedb1b5c0307fd170cae562fbd1 (patch) | |
| tree | c4b4381fd9519f8f43067e55718dd502b9100e0d /src/kernel/fs/elf.c | |
| parent | ffb7cb87593a5de58f7c5183020576dac9d50fc4 (diff) | |
Woah, so many changes :O
Diffstat (limited to 'src/kernel/fs/elf.c')
| -rw-r--r-- | src/kernel/fs/elf.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/kernel/fs/elf.c b/src/kernel/fs/elf.c index ba9251a..fe180c4 100644 --- a/src/kernel/fs/elf.c +++ b/src/kernel/fs/elf.c @@ -25,6 +25,7 @@ int is_elf(struct elf_header *header) struct process *elf_load(char *path) { + log("ELF START"); u32 *prev_dir; if (current_proc) prev_dir = current_proc->cr3; @@ -52,7 +53,11 @@ struct process *elf_load(char *path) proc->registers.eip = header->entry; paging_switch_directory(proc->cr3); - u32 stk = (u32)malloc(PAGE_SIZE); + if (!memory_init()) + paging_set_present(0, memory_get_all() >> 3); + + u32 stk = (u32)valloc(PAGE_SIZE); + proc->registers.useresp = 0x40000000 - (PAGE_SIZE / 2); proc->registers.ebp = proc->registers.useresp; proc->registers.esp = proc->registers.useresp; @@ -63,11 +68,14 @@ struct process *elf_load(char *path) case 0: break; case 1: { - u32 loc = (u32)malloc(PAGE_SIZE); + u32 loc = (u32)valloc(PAGE_SIZE); + warn("1"); paging_map(loc, program_header->vaddr, PT_USER); + warn("2"); memcpy((void *)program_header->vaddr, ((void *)((u32)file) + program_header->offset), program_header->filesz); + warn("3"); if (program_header->filesz > PAGE_SIZE) panic("ELF binary section too large"); break; @@ -78,5 +86,6 @@ struct process *elf_load(char *path) } paging_switch_directory(prev_dir); + log("ELF END"); return proc; -} +}
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