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Feat: POSIX signal

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This commit is contained in:
Yi-Ting Shih
2025-05-04 20:38:25 +08:00
parent 8d1045f20d
commit d31f5e02fe
9 changed files with 171 additions and 33 deletions
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61
kernel/lib/process.c
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@@ -11,15 +11,16 @@
#include <interrupt.h>
int32_t global_pid_counter = 0;
vector_t *global_processes = 0x0;
static inline
process_t *_make_process(const char *filename)
process_t *_make_process()
{
process_t *ret = kmalloc(sizeof(process_t));
file_node_t *file = initrd_get(initrd_root, filename);
if (file == 0x0)
panic(ERR_NOT_EXIST);
if (!global_processes)
global_processes = make_vector(0);
VEC_PUSH(global_processes, ret);
*ret = (process_t){
.pid = global_pid_counter++,
@@ -33,26 +34,46 @@ process_t *_make_process(const char *filename)
.mem = allocate_page(256),
.mem_size = 256 << 12,
.sigstack = allocate_page(256),
.sigstack_size = 256 << 12,
.current_signal = 0,
.regs = kmalloc(sizeof(trapframe_t)),
};
memcpy(ret->mem, file->filecontent, file->filesize);
memset(ret->sigstate, 0x0, SIGNAL_NUM * sizeof(bool));
memset(ret->sighandlers, 0x0, SIGNAL_NUM * sizeof(signal_handler_t));
memset(ret->regs, 0x0, sizeof(trapframe_t));
*ret->regs = (trapframe_t){
.spsr_el1 = 0x0, // enable all interrupt
.elr_el1 = (uint64_t)ret->mem,
.sp_el0 = ((uint64_t)ret->stack + ret->stack_size - 64),
};
return ret;
}
static inline
void _init_process(process_t *process, const char *filename)
{
file_node_t *file = initrd_get(initrd_root, filename);
if (file == 0x0)
panic(ERR_NOT_EXIST);
memcpy(process->mem, file->filecontent, file->filesize);
*process->regs = (trapframe_t){
.spsr_el1 = 0x0, // enable all interrupt
.elr_el1 = (uint64_t)process->mem,
.sp_el0 = ((uint64_t)process->stack + process->stack_size - 64),
};
}
// void run_process_by_name(const char *filename)
int32_t run_process_by_name(uint64_t param)
{
const char *filename = (void *)param;
thread_t *th = get_current();
th->process = _make_process(filename);
if (!th->process)
th->process = _make_process();
_init_process(th->process, filename);
th->process->th = th;
LOG("Run process by name"); DEBUG_THREAD(filename);
LOG(th->process->stack); DEBUG_THREAD(th->process->regs->sp_el0);
@@ -84,21 +105,7 @@ int32_t run_process(uint64_t param)
process_t *fork_process(const process_t *from)
{
process_t *ret = kmalloc(sizeof(process_t));
*ret = (process_t){
.pid = global_pid_counter++,
.th = 0x0,
.exitcode = from->exitcode,
.stack = allocate_page(256),
.stack_size = 256 << 12,
.mem = allocate_page(256),
.mem_size = 256 << 12,
.regs = kmalloc(sizeof(trapframe_t)),
};
process_t *ret = _make_process();
memcpy(ret->stack, from->stack, from->stack_size);
memcpy(ret->mem, from->mem, from->mem_size);
*ret->regs = (trapframe_t){