At Mon, 19 Mar 2012 15:18:28 +0100, qbert biker wrote:
> > That's correct, although the patch you've linked to may not work
> > correctly for 64-bit systems. A better fix would be to change the
> > argument type of getTiFileBytes from size_t * to uint32_t *.
>
> I'm very late but I just discovered this discussion.
> The patch was created to support 64 Bit and works fine with
> my 64 Bit machines. If a 32-Bit system is used, the patch
> may be unnecessary.
Hi Hubert,
The reason for my comment above was that on amd64, size_t is a 64-bit
type. So, if you cast segment.size (which is of type uint32_t) instead
of changing the argument type, you end up with getTiFileBytes writing
8 bytes to a memory location for which only 4 bytes are guaranteed to
be allocated.
You're correct that this does appear to work, but this is due to the
fact that (a) amd64 is little-endian, so the lower 32 bits end up in
the right place anyway, and (b) segment.size is located at the very
end of the object, which is heap-allocated and probably contains a bit
of unused padding which can be trashed without consequence.
This fix may not work if the class layout is altered. What I'd suggest
is something like the following:
---
DLL430_v3/src/TI/DLL430/FileFuncImpl.cpp | 2 +-
DLL430_v3/src/TI/DLL430/FileFuncImpl.h | 2 +-
DLL430_v3/src/TI/DLL430/HalResponse.h | 1 +
3 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/DLL430_v3/src/TI/DLL430/FileFuncImpl.cpp
b/DLL430_v3/src/TI/DLL430/FileFuncImpl.cpp
index 95877ab..79e3cb1 100644
--- a/DLL430_v3/src/TI/DLL430/FileFuncImpl.cpp
+++ b/DLL430_v3/src/TI/DLL430/FileFuncImpl.cpp
@@ -199,7 +199,7 @@ bool FileFuncImpl::getTiFileAddress(const string& record,
uint32_t * address)
// WORD* ByteCnt (receives the number of values stored)
// Result: bool (true if line is ok, otherwise false)
-bool FileFuncImpl::getTiFileBytes(const string& Record, size_t* ByteCnt)
+bool FileFuncImpl::getTiFileBytes(const string& Record, uint32_t* ByteCnt)
{
stringstream stream(Record);
int numBytes = 0;
diff --git a/DLL430_v3/src/TI/DLL430/FileFuncImpl.h
b/DLL430_v3/src/TI/DLL430/FileFuncImpl.h
index 4819c1b..466879b 100644
--- a/DLL430_v3/src/TI/DLL430/FileFuncImpl.h
+++ b/DLL430_v3/src/TI/DLL430/FileFuncImpl.h
@@ -185,7 +185,7 @@ namespace TI
void trimWhitespace(string& str);
bool getTiFileAddress(const string& record, uint32_t*
address);
- bool getTiFileBytes(const string& Record, size_t*
ByteCnt);
+ bool getTiFileBytes(const string& Record, uint32_t*
ByteCnt);
bool gotoIntelRecordStart();
void readIntelData(istream& stream, uint8_t size,
uint32_t address, bool firstData);
diff --git a/DLL430_v3/src/TI/DLL430/HalResponse.h
b/DLL430_v3/src/TI/DLL430/HalResponse.h
index c4c19c9..c7f04ec 100644
--- a/DLL430_v3/src/TI/DLL430/HalResponse.h
+++ b/DLL430_v3/src/TI/DLL430/HalResponse.h
@@ -43,6 +43,7 @@
#include <inttypes.h>
#include <vector>
+#include <cstdio>
namespace TI
{
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