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Parse commandline strings, move away from old env vars
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This commit is contained in:
Kamil Kowalczyk
2026-04-28 22:45:31 +02:00
parent 9fbe23024c
commit fbf067d418
15 changed files with 265 additions and 185 deletions
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17
kernel/amd64/intr.c
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@@ -162,23 +162,6 @@ static void intr_exception(struct saved_regs* regs) {
regs->error, regs->rip, regs->cs, regs->rflags, regs->rsp, regs->ss, cr2, cr3,
regs->rbx);
debugprintf("call stack:\n");
uint64_t rbp = regs->rbp;
for (size_t depth = 0; depth < 20; depth++) {
if (rbp == 0)
break;
uint64_t rip = *(uint64_t*)(rbp + 8);
debugprintf(" #%d %016lx\n", depth, rip);
rbp = *(uint64_t*)rbp;
if (rbp == 0)
break;
}
if (regs->cs == (GDT_UCODE | 0x03)) {
biglock_lock();

12
kernel/syscall/syscall.c
View File

@@ -340,10 +340,11 @@ DEFINE_SYSCALL(sys_exec) {
return SYSRESULT(pid);
}
/* int exec_partial (char* volume, char* path) */
/* int exec_partial (char* volume, char* path, char* cmdline) */
DEFINE_SYSCALL(sys_exec_partial) {
uintptr_t uvaddr_volume = a1;
uintptr_t uvaddr_path = a2;
uintptr_t uvaddr_cmdline = a3;
struct limine_hhdm_response* hhdm = limine_hhdm_request.response;
@@ -367,12 +368,21 @@ DEFINE_SYSCALL(sys_exec_partial) {
const char* volume = (const char*)((uintptr_t)hhdm->offset + out_paddr);
out_paddr = mm_v2p(&procgroup->pd, uvaddr_cmdline);
char* cmdline = (out_paddr != 0) ? (char*)((uintptr_t)hhdm->offset + out_paddr) : NULL;
struct proc* new = proc_from_file(proc, volume, path, rctx);
if (new == NULL) {
return SYSRESULT(-ST_EXEC_ERROR);
}
if (cmdline != NULL) {
void* cmdline_dest = (void*)((uintptr_t)hhdm->offset + new->procgroup->paddr_cmdline);
strncpy(cmdline_dest, cmdline, PAGE_SIZE);
}
int pid = new->pid;
new->exec_pid = pid1;
new->state = PROC_PARTIAL;