From dc21c62431185f7f578c7276ac4e06f91d68e5c4 Mon Sep 17 00:00:00 2001
From: Berthelot Mewen <65554529+bmewen@users.noreply.github.com>
Date: Fri, 7 Jun 2024 03:40:35 +0200
Subject: [PATCH] Add missing functions to make RIOT work with the 2.x.x
 version (#3508)

The `os_mremap` and `os_getpagesize` were missing in the `core/shared/platform/riot`
and were preventing RIOT from compiling if using WAMR v2.x.x. This PR is adding
both functions and should allow RIOT to update WAMR version to v2.x.x.

Signed-off-by:: mewen.berthelot <mewen.berthelot@orange.com>
---
 core/shared/platform/riot/platform_internal.h | 8 ++++++++
 core/shared/platform/riot/riot_platform.c     | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/core/shared/platform/riot/platform_internal.h b/core/shared/platform/riot/platform_internal.h
index e88b25d4..24a1d6c8 100644
--- a/core/shared/platform/riot/platform_internal.h
+++ b/core/shared/platform/riot/platform_internal.h
@@ -94,4 +94,12 @@ os_get_invalid_handle()
     return -1;
 }
 
+/* There is no MMU in RIOT so the function return 1024 to make the compiler
+   happy */
+static inline int
+os_getpagesize()
+{
+    return 1024;
+}
+
 #endif /* end of _BH_PLATFORM_H */
diff --git a/core/shared/platform/riot/riot_platform.c b/core/shared/platform/riot/riot_platform.c
index ad5927e5..9c1fbfa4 100644
--- a/core/shared/platform/riot/riot_platform.c
+++ b/core/shared/platform/riot/riot_platform.c
@@ -57,6 +57,12 @@ os_mmap(void *hint, size_t size, int prot, int flags, os_file_handle file)
     return BH_MALLOC((unsigned)size);
 }
 
+void *
+os_mremap(void *old_addr, size_t old_size, size_t new_size)
+{
+    return os_mremap_slow(old_addr, old_size, new_size);
+}
+
 void
 os_munmap(void *addr, size_t size)
 {