Return error code -1 when closing file descriptors < 3 (stdin, stdout, stderr)

banglday · banglday · commit 97328ae0af9a · 2025-02-12T07:30:16.000Z
diff --git a/src/syscall.c b/src/syscall.c
@@ -244,10 +244,10 @@ static void syscall_close(riscv_t *rv)
             /* success */
             rv_set_reg(rv, rv_reg_a0, 0);
         }
+    } else {
+        /* error */
+        rv_set_reg(rv, rv_reg_a0, -1);
     }
-
-    /* success */
-    rv_set_reg(rv, rv_reg_a0, 0);
 }
 
 /* lseek() repositions the file offset of the open file description associated

Original file line number	Diff line number	Diff line change
`@@ -244,10 +244,10 @@ static void syscall_close(riscv_t *rv)`
`244`	`244`	`/* success */`
`245`	`245`	`rv_set_reg(rv, rv_reg_a0, 0);`
`246`	`246`	`}`
	`247`	`+ } else {`
	`248`	`+ /* error */`
	`249`	`+ rv_set_reg(rv, rv_reg_a0, -1);`
`247`	`250`	`}`
`248`		`-`
`249`		`- /* success */`
`250`		`- rv_set_reg(rv, rv_reg_a0, 0);`
`251`	`251`	`}`
`252`	`252`
`253`	`253`	`/* lseek() repositions the file offset of the open file description associated`