X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=linux%2Fplat.c;h=2842691e5e22d2e65be373eb10a26b27942ea8ea;hb=39b2c61e1d4ef370b0f84cb5a601f9f2d3a1d35a;hp=06c315e830212e7b394344c649aab84cc534e176;hpb=26ea18173c1228dd5ce39e2a88ffe1ae10fcb365;p=libpicofe.git

diff --git a/linux/plat.c b/linux/plat.c
index 06c315e..2842691 100644
--- a/linux/plat.c
+++ b/linux/plat.c
@@ -216,8 +216,18 @@ void *plat_mremap(void *ptr, size_t oldsize, size_t newsize)
 	void *ret;
 
 	ret = mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE);
-	if (ret == MAP_FAILED)
-		return NULL;
+	if (ret == MAP_FAILED) {
+		fprintf(stderr, "mremap %p %zd %zd: ",
+			ptr, oldsize, newsize);
+		perror(NULL);
+		// might be because huge pages can't be remapped,
+		// just make a new mapping
+		ret = plat_mmap(0, newsize, 0, 0);
+		if (ret == MAP_FAILED)
+			return NULL;
+		memcpy(ret, ptr, oldsize);
+		munmap(ptr, oldsize);
+	}
 	if (ret != ptr)
 		printf("warning: mremap moved: %p -> %p\n", ptr, ret);