[Bug binutils/755] New: objdump creating mis-aligned listing using latest CVS MAIN/HEAD

[schlie at comcast dot net]

Given a C source program compiled with gcc4.0 built for target=avr, using -0s 
-g,
then generating main.lss using [avr-objdump -h -S main.o], results in a partial 
struct
declaration text being displayed between: "00000000 <main>:" and  "int main 
(void){"
as follows:

File: main.c:

typedef struct {
  int a;
  int b;
  int c;
  int d;
  int f;
  int g;
  } s;

int main (void){

  volatile s x = {0, 1, 2, 3, 4, 5};
    
  return x.a + x.b + x.c;

}

Then using: [avr-objdump -h -S main.o] produces:

main.o:     file format elf32-avr

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         00000032  00000000  00000000  00000034  2**0
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  1 .data         0000000c  00000000  00000000  00000066  2**0
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          00000000  00000000  00000000  00000072  2**0
                  ALLOC
  3 .stab         0000018c  00000000  00000000  00000074  2**2
                  CONTENTS, RELOC, READONLY, DEBUGGING
  4 .stabstr      00000336  00000000  00000000  00000200  2**0
                  CONTENTS, READONLY, DEBUGGING
Disassembly of section .text:
                                            << Missing struct declaration text 
here?
00000000 <main>:
  int f;                                  << Misplaced partial struct 
declaration text here
  int g;                                 << And here?
  } s;                                     << And here?

int main (void){
   0:   c0 e0           ldi     r28, 0x00       ; 0
   2:   d0 e0           ldi     r29, 0x00       ; 0
   4:   de bf           out     0x3e, r29       ; 62
   6:   cd bf           out     0x3d, r28       ; 61

  volatile s x = {0, 1, 2, 3, 4, 5};
   8:   de 01           movw    r26, r28
   a:   11 96           adiw    r26, 0x01       ; 1
   c:   e0 e0           ldi     r30, 0x00       ; 0
   e:   f0 e0           ldi     r31, 0x00       ; 0
  10:   8c e0           ldi     r24, 0x0C       ; 12
  12:   01 90           ld      r0, Z+
  14:   0d 92           st      X+, r0
  16:   81 50           subi    r24, 0x01       ; 1
  18:   e1 f7           brne    .-8             ; 0x12 <main+0x12>
    
  return x.a + x.b + x.c;
  1a:   89 81           ldd     r24, Y+1        ; 0x01
  1c:   9a 81           ldd     r25, Y+2        ; 0x02
  1e:   2b 81           ldd     r18, Y+3        ; 0x03
  20:   3c 81           ldd     r19, Y+4        ; 0x04
  22:   4d 81           ldd     r20, Y+5        ; 0x05
  24:   5e 81           ldd     r21, Y+6        ; 0x06
  26:   82 0f           add     r24, r18
  28:   93 1f           adc     r25, r19

}
  2a:   84 0f           add     r24, r20
  2c:   95 1f           adc     r25, r21
  2e:   0c 94 00 00     jmp     0x0 <main>

-- 
           Summary: objdump creating mis-aligned listing using latest CVS
                    MAIN/HEAD
           Product: binutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: schlie at comcast dot net
                CC: bug-binutils at gnu dot org
 GCC build triplet: ppc-apple-darwin7.8
  GCC host triplet: ppc-apple-darwin7.8
GCC target triplet: avr-unknown-unknown


http://sources.redhat.com/bugzilla/show_bug.cgi?id=755

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