Hello All,
a mixed source / assembly listing requested by "-Wa,-a" gets out of
sync as soon as I have asm statements in the C code (example below)
Questions:
Can I avoid/circumvent this effect?
If not: Is this a known bug (I was not able to find it in the bug
database but I might have used the wrong search terms)?
If not: Should I provide more / other information than in this posting
when submitting it?
TIA,
Oliver
Example:
int foo(int bar)
{
bar /= 3;
asm("tpf");
asm("tpf");
bar *= 5;
return bar + 1;
}
compiled with "m68k-elf-gcc.exe test.c -g -mcpu=52259 -Wa,-a" using
gcc 4.4.1 (Windows) from CodeSourcery yields:
1 #NO_APP
2 .file "test.c"
3 .section
.debug_abbrev,"",@progbits
4 .Ldebug_abbrev0:
5 .section
.debug_info,"",@progbits
6 .Ldebug_info0:
7 .section
.debug_line,"",@progbits
8 .Ldebug_line0:
9 0000 0000 0036 .text
9 0002 0000
9 001D 0201
9 FB0E 0D00
9 0101 0101
10 .Ltext0:
11 .align 2
12 .globl foo
13 .type foo, @function
14 foo:
15 .LFB0:
16 .file 1 "test.c"
1:test.c **** int foo(int bar)
2:test.c **** {
17 .loc 1 2 0
18 .cfi_startproc
19 0000 4E56 0000 link.w %fp,#0
20 .LCFI0:
21 .cfi_def_cfa 14, 8
22 .cfi_offset 14, -8
23 0004 2F02 move.l %d2,-(%sp)
3:test.c **** bar /= 3;
24 .loc 1 3 0
25 0006 202E 0008 move.l 8(%fp),%d0
26 000a 7403 moveq #3,%d2
27 .cfi_offset 2, -12
28 000c 4C42 0801 rems.l %d2,%d1:%d0
29 0010 4C42 0800 divs.l %d2,%d0
30 0014 2D40 0008 move.l %d0,8(%fp)
4:test.c **** asm("tpf");
31 .loc 1 4 0
32 #APP
5:test.c **** asm("tpf");
6:test.c **** bar *= 5;
33 0018 51FC 51FC | 4 "test.c" 1
34 001c 202E 0008 tpf
35 0020 2200 | 0 "" 2
36 0022 E589 .loc 1 5 0
37 0024 2041 | 5 "test.c" 1
38 0026 D1C0 tpf
39 0028 2D48 0008 | 0 "" 2
7:test.c **** return bar + 1;
40 .loc 1 6 0
41 002c 202E 0008 #NO_APP
42 0030 5280 move.l 8(%fp),%d0
8:test.c **** }
43 move.l %d0,%d1
44 0032 241F lsl.l #2,%d1
45 0034 4E5E move.l %d1,%a0
46 0036 4E75 add.l %d0,%a0
47 move.l %a0,8(%fp)
48 .loc 1 7 0
49 move.l 8(%fp),%d0
50 addq.l #1,%d0
51 .loc 1 8 0
52 move.l (%sp)+,%d2
53 unlk %fp
54 0000 0000 0000 rts
