X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=platform%2Flinux%2Fplat.c;h=f5742b92f678b8259a3e2f034ab36f0f0042c582;hb=bf61bea0f2e94206a79fecc83b719f24cfc951c2;hp=d777f23b2a09f29d011bc54ea4133715e37ac20c;hpb=697746df021a83dcb556afdb36abc6977780985c;p=picodrive.git

diff --git a/platform/linux/plat.c b/platform/linux/plat.c
index d777f23..f5742b9 100644
--- a/platform/linux/plat.c
+++ b/platform/linux/plat.c
@@ -1,9 +1,11 @@
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <string.h>
 #include <dirent.h>
 #include <sys/time.h>
 #include <time.h>
 #include <unistd.h>
+#include <sys/mman.h>
 
 #include "../common/plat.h"
 
@@ -108,3 +110,35 @@ int plat_wait_event(int *fds_hnds, int count, int timeout_ms)
 	return ret;
 }
 
+void *plat_mmap(unsigned long addr, size_t size)
+{
+	void *req, *ret;
+
+	req = (void *)addr;
+	ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+	if (ret == MAP_FAILED)
+		return NULL;
+	if (ret != req)
+		printf("warning: mmaped to %p, requested %p\n", ret, req);
+
+	return ret;
+}
+
+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 != ptr)
+		printf("warning: mremap moved: %p -> %p\n", ptr, ret);
+
+	return ret;
+}
+
+void plat_munmap(void *ptr, size_t size)
+{
+	munmap(ptr, size);
+}
+