From 30ee44dd163049adcaffe6fc71fcd9cc75a11e5a Mon Sep 17 00:00:00 2001
From: Pierre Alain <pierre.alain@tuta.io>
Date: Mon, 12 Feb 2024 14:48:33 +0100
Subject: [PATCH] add debug printf, and add printf with mmap/munmap

---
 nolibc/mm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nolibc/mm.c b/nolibc/mm.c
index 242b92ac..81942667 100644
--- a/nolibc/mm.c
+++ b/nolibc/mm.c
@@ -24,7 +24,7 @@
 #include <string.h>
 #include <sys/mman.h>
 
-#if 0
+#if 1
 #define DPRINTF(format, ...) printf("%s(): " format, __func__, __VA_ARGS__)
 #else
 #define DPRINTF(format, ...)
@@ -542,6 +542,7 @@ void mm_init(uintptr_t start_addr, uintptr_t end_addr)
 /*********************** MMAP FAMILY FUNCTIONS ******************/
 
 void *mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off) {
+    DPRINTF("request mmap size %lu.\n", len);
 
   /* The OCaml usage of [mmap()] is only to allocate some spaces, only [fildes
    * == -1] is handled so.
@@ -575,6 +576,7 @@ int munmap(void *addr, size_t length)
 {
   (void)length; // unused argument
 
+    DPRINTF("request munmap for addr %p with len %lu.\n", addr, length);
 
   /* man page for munmap says:
    * The address addr must be a multiple of the page size (but length need not be).