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-rw-r--r--kernel/exec.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/exec.c b/kernel/exec.c
index 74ef654..6a51499 100644
--- a/kernel/exec.c
+++ b/kernel/exec.c
@@ -112,6 +112,7 @@ exec(char *path, char **argv)
p->tf->epc = elf.entry; // initial program counter = main
p->tf->sp = sp; // initial stack pointer
proc_freepagetable(oldpagetable, oldsz);
+
return argc; // this ends up in a0, the first argument to main(argc, argv)
bad: