Hello all,
While debugging and printing struct with multi-dimensional char array, gdb
successfully prints string while lldb bails out with only printing address.
For simple C testcase,
struct b {
char i[2][4];
};
int main() {
struct b z;
z.i[0][0] = 'F';
z.i[0][1] = 'O';
z.i[0][2] = 'O';
z.i[0][3] = 0;
z.i[1][0] = 'B';
z.i[1][1] = 'A';
z.i[1][2] = 'R';
z.i[1][3] = 0;
return 0;
}
On gdb,
Reading symbols from /home/chirag/a.out...done.
(gdb) l
1 struct b {
2 char i[2][4];
3 };
4
5 int main() {
6 struct b z;
7 z.i[0][0] = 'F';
8 z.i[0][1] = 'O';
9 z.i[0][2] = 'O';
10 z.i[0][3] = 0;
(gdb) l
11 z.i[1][0] = 'B';
12 z.i[1][1] = 'A';
13 z.i[1][2] = 'R';
14 z.i[1][3] = 0;
15 return 0;
16 }
(gdb) b 15
Breakpoint 1 at 0x400511: file Desktop/test/struct.c, line 15.
(gdb) r
Starting program: /home/chirag/./a.out
Breakpoint 1, main () at Desktop/test/struct.c:15
15 return 0;
Missing separate debuginfos, use: debuginfo-install glibc-2.17-307.el7.1.x86_64
(gdb) p z
$1 = {i = {"FOO", "BAR"}}
(gdb) q
A debugging session is active.
While on lldb 11.0.0-rc2, (lldb) target create "/home/chirag/a.out"
Current executable set to '/home/chirag/a.out' (x86_64).
(lldb) b 15
Breakpoint 1: where = a.out`main + 36 at struct.c:15, address =
0x0000000000400511
(lldb) r
Process 57100 launched: '/home/chirag/a.out' (x86_64)
Process 57100 stopped
* thread #1, name = 'a.out', stop reason = breakpoint 1.1
frame #0: 0x0000000000400511 a.out`main at struct.c:15
12 z.i[1][1] = 'A';
13 z.i[1][2] = 'R';
14 z.i[1][3] = 0;
-> 15 return 0;
16 }
(lldb) p z
(b) $0 = (i = char [2][4] @ 0x0000000001fe3ca0)
(lldb) q
It seems like the type summary formatter is failing? Or is it the intended
behaviour?.
Thanks and Regards,
Chirag Patel.
_______________________________________________
lldb-dev mailing list
lldb-dev@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
