diff options
| author | Ian Moffett <ian@osmora.org> | 2024-07-17 00:24:32 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-07-17 00:24:32 -0400 |
| commit | 2be1c778a4dfe2c6ebb371b457c1e1dc9e89c98d (patch) | |
| tree | 2dbf33a0a4d774b6b9694dc45f876c7d1ce87d35 /sys/kern | |
| parent | b1e73a96d935260f913410d66f77a52c4daf3f48 (diff) | |
kernel: exec: Save program state within thread
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/exec_elf64.c | 1 | ||||
| -rw-r--r-- | sys/kern/kern_exec.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/sys/kern/exec_elf64.c b/sys/kern/exec_elf64.c index b207fbb..d9a3bb9 100644 --- a/sys/kern/exec_elf64.c +++ b/sys/kern/exec_elf64.c @@ -31,6 +31,7 @@ #include <sys/exec.h> #include <sys/param.h> #include <sys/namei.h> +#include <sys/proc.h> #include <sys/vnode.h> #include <sys/errno.h> #include <vm/pmap.h> diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 1466159..ceb08f6 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -36,6 +36,7 @@ #include <vm/map.h> #include <vm/physmem.h> #include <machine/pcb.h> +#include <string.h> /* * Release the memory of the old stack @@ -84,6 +85,9 @@ execve(struct proc *td, const struct execve_args *args) if (td->stack_base != 0) release_stack(td); + /* Save program state */ + memcpy(&td->exec, &prog, sizeof(td->exec)); + /* Set new stack and map it to userspace */ td->stack_base = stack; vm_map(pcbp->addrsp, td->stack_base, td->stack_base, |