Added basic exec calls for init and started libc

2 files changed, 38 insertions, 2 deletions

diff --git a/src/kernel/tasks/process.c b/src/kernel/tasks/process.c
index 4cb8d8c..a4c525a 100644
--- a/src/kernel/tasks/process.c
+++ b/src/kernel/tasks/process.c
@@ -8,6 +8,7 @@
 #include <kernel/memory/paging.h>
 #include <kernel/memory/alloc.h>
 #include <kernel/timer/timer.h>
+#include <kernel/fs/elf.h>
 
 uint32_t pid = 0;
 struct process *root;
@@ -203,4 +204,35 @@ struct process *process_make_new()
 	proc->pid = pid++;
 
 	return proc;
-}
\ No newline at end of file
+}
+
+uint32_t kexec(char *path)
+{
+	struct process *proc = elf_load(path);
+	if (proc == NULL)
+		return -1;
+
+	// TODO: Add stdin etc support (?)
+	proc->stdin = NULL;
+	proc->stdout = NULL;
+	proc->stderr = NULL;
+	process_init(proc);
+}
+
+uint32_t uexec(char *path)
+{
+	process_suspend(current_proc->pid);
+
+	struct process *proc = elf_load(path);
+	if (proc == NULL)
+		return -1;
+
+	proc->stdin = NULL;
+	proc->stdout = NULL;
+	proc->stderr = NULL;
+
+	proc->parent = current_proc;
+	proc->gid = current_proc->pid;
+	process_spawn(proc);
+	return 0;
+}
diff --git a/src/kernel/tasks/process.h b/src/kernel/tasks/process.h
index 1a5c607..5230ea4 100644
--- a/src/kernel/tasks/process.h
+++ b/src/kernel/tasks/process.h
@@ -54,6 +54,10 @@ void process_init(struct process *proc);
 
 struct process *process_make_new();
 
+uint32_t kexec(char *path);
+
+uint32_t uexec(char *path);
+
 extern struct process *current_proc;
 
 extern uint32_t stack_hold;
@@ -70,4 +74,4 @@ extern uint32_t stack_hold;
 #define WAIT_ERROR (-1)
 #define WAIT_OKAY 0
 
-#endif
\ No newline at end of file
+#endif