kernel: exec: Add execve()

Signed-off-by: Ian Moffett <ian@osmora.org>

2 files changed, 10 insertions, 0 deletions

diff --git a/sys/include/sys/exec.h b/sys/include/sys/exec.h
index 73eae01..f5fac97 100644
--- a/sys/include/sys/exec.h
+++ b/sys/include/sys/exec.h
@@ -72,7 +72,15 @@ struct exec_prog {
     char **envp;
 };
 
+struct execve_args {
+    const char *pathname;
+    char **argv;
+    char **envp;
+};
+
+int execve(struct proc *td, const struct execve_args *args);
 int elf64_load(const char *pathname, struct proc *td, struct exec_prog *prog);
+
 void elf_unload(struct proc *td, struct exec_prog *prog);
 void setregs(struct proc *td, struct exec_prog *prog, uintptr_t stack);
 
diff --git a/sys/include/sys/proc.h b/sys/include/sys/proc.h
index 0c3cd33..ba931f3 100644
--- a/sys/include/sys/proc.h
+++ b/sys/include/sys/proc.h
@@ -56,6 +56,8 @@ struct proc {
 };
 
 #define PROC_EXITING    BIT(0)  /* Exiting */
+#define PROC_EXEC       BIT(1)  /* Exec called (cleared by sched) */
+#define PROC_INEXEC     BIT(2)  /* Exec in progress */
 
 struct proc *this_td(void);
 int md_fork(struct proc *p, struct proc *parent, uintptr_t ip);