Author: pluto
Date: Thu Aug 24 22:53:12 2006
New Revision: 7685
Modified:
backtracexx/backtracexx.cpp
Log:
- adjust trace for sparc and ppc (alpha and x86 nfy).
Modified: backtracexx/backtracexx.cpp
==============================================================================
--- backtracexx/backtracexx.cpp (original)
+++ backtracexx/backtracexx.cpp Thu Aug 24 22:53:12 2006
@@ -10,9 +10,20 @@
{
namespace
{
- unsigned char const* callpoint( unsigned char const* ip )
+ // extract caller's address from callee's return point.
+ unsigned char const* caller( unsigned char const* ip )
{
- // not implemented yet.
+#if defined( __powerpc__ ) && !defined( __powerpc64__ )
+ // powerpc64 not tested.
+ ip -= 4;
+#elif defined( __sparc__ )
+ // the same for sparc v7/8/9.
+ ip -= 8;
+#elif defined( __alpha__ )
+ // alpha not tested yet.
+#elif defined( __i386__ ) || defined( __x86_64__ )
+ // TODO: analysis of complex addressing forms (see
intel/24319102.pdf).
+#endif
return ip;
}
@@ -20,7 +31,7 @@
{
_Unwind_Ptr ip = _Unwind_GetIP( ctx );
reinterpret_cast< raw_backtrace_type* >( arg
)->push_back(
- callpoint( reinterpret_cast< unsigned char
const* >( ip ) ) );
+ caller( reinterpret_cast< unsigned char const*
>( ip ) ) );
return _URC_NO_REASON;
}
}
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