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bugfixes related to mmap usage for ROM

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@867 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2010-01-27 15:16:25 +00:00
parent 1e122e3119
commit 1ed480497a
1 changed files with 16 additions and 1 deletions
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17
linux/plat.c
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@ -1,3 +1,4 @@
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <dirent.h>
@ -112,8 +113,9 @@ int plat_wait_event(int *fds_hnds, int count, int timeout_ms)
void *plat_mmap(unsigned long addr, size_t size)
{
void *req, *ret;
req = (void *)addr;
ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0);
ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (ret == MAP_FAILED)
return NULL;
if (ret != req)
@ -122,6 +124,19 @@ void *plat_mmap(unsigned long addr, size_t size)
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);