This example came from the gdb list:
#include "stdio.h"
class Blah
{
public:
Blah(): mFlag(0) {}
void setFlag( int value ) {
mFlag = value;
}
void printFlag() {
printf( "Flag value is %d\n", mFlag );
}
private:
int mHugeArray[0x08000001];
int mFlag;
};
int main( int argc, char* argv[] )
{
Blah* foo = new Blah();
foo->setFlag(1);
foo->printFlag();
return 0;
}
I compiled this using today's svn trunk g++.
Then readelf shows:
<2><8e>: Abbrev Number: 7 (DW_TAG_member)
<8f> DW_AT_name : (indirect string, offset: 0x9f): mHugeArray
<93> DW_AT_decl_file : 1
<94> DW_AT_decl_line : 13
<95> DW_AT_type : <0xf2>
<99> DW_AT_data_member_location: 2 byte block: 23 0
(DW_OP_plus_uconst: 0)
<9c> DW_AT_accessibility: 3 (private)
<2><9d>: Abbrev Number: 7 (DW_TAG_member)
<9e> DW_AT_name : (indirect string, offset: 0x0): mFlag
<a2> DW_AT_decl_file : 1
<a3> DW_AT_decl_line : 14
<a4> DW_AT_type : <0x53>
<a8> DW_AT_data_member_location: 2 byte block: 23 0
(DW_OP_plus_uconst: 0)
<ab> DW_AT_accessibility: 3 (private)
Both fields the same DW_AT_data_member_location.
--
Summary: bad DW_AT_data_member_location from g++
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tromey at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41048
