On 32bit host arm-linux-gnueabi-objdump segfaults

14:38 hrw@puchatek:a$ arm-linux-gnueabi-objdump -D aboot >a.l
14:38 hrw@puchatek:a$ arm-linux-gnueabi-objdump --version
GNU objdump (GNU Binutils for Ubuntu) 2.21.52.20110707
Copyright 2011 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
14:38 hrw@puchatek:a$ apt-cache policy binutils-arm-linux-gnueabi
binutils-arm-linux-gnueabi:
  Zainstalowana: 2.21.52.20110707-1ubuntu1cross1.71
  Kandydująca: 2.21.52.20110707-1ubuntu1cross1.71
  Tabela wersji:
 *** 2.21.52.20110707-1ubuntu1cross1.71 0
        999 http://de.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

I am on i386 but otherwise same toolchain version.

binutils 20110810 fails too

Program received signal SIGSEGV, Segmentation fault.
0xf7cd2410 in _IO_vfprintf_internal (s=Cannot access memory at address 0xffffffff
) at vfprintf.c:1620
1620 vfprintf.c: No such file or directory.
        in vfprintf.c
(gdb) bt
#0 0xf7cd2410 in _IO_vfprintf_internal (s=Cannot access memory at address 0xffffffff
) at vfprintf.c:1620
#1 0xf7d74f48 in ___vsnprintf_chk (s=0x8096259 ", #-16]0xf0a4>", maxlen=<optimized out>, flags=1, slen=4294967295, format=0xf7f52a68 ", #%d]%s",
    args=0xffffd618 "\360\377\377\377\377\377\377\377\321(\365\367^") at vsnprintf_chk.c:65
#2 0x0804bdde in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)

Compiled with -O0:

Program received signal SIGSEGV, Segmentation fault.
0xf7ca1410 in _IO_vfprintf_internal (s=Cannot access memory at address 0xffffffff
) at vfprintf.c:1620
1620 vfprintf.c: No such file or directory.
        in vfprintf.c
(gdb) bt
#0 0xf7ca1410 in _IO_vfprintf_internal (s=Cannot access memory at address 0xffffffff
) at vfprintf.c:1620
#1 0xf7cc0dbb in _IO_vsnprintf (string=0x809f259 ", #-16]0xf0a4>", maxlen=<optimized out>, format=0xf7f59610 ", #%d]%s",
    args=0xffffd4f8 "\360\377\377\377\377\377\377\377\315\t\365\367\251") at vsnprintf.c:120
#2 0x0804c750 in ?? ()
#3 0xf7f3f00e in print_insn_coprocessor (pc=1076923648, info=0xffffda24, given=1291845636, thumb=0) at ../../opcodes/arm-dis.c:1893
#4 0xf7f41afb in print_insn_arm (pc=1076923648, info=0xffffda24, given=1291845636) at ../../opcodes/arm-dis.c:2943
#5 0xf7f465c0 in print_insn (pc=1076923648, info=0xffffda24, little=1) at ../../opcodes/arm-dis.c:4952
#6 0xf7f466ba in print_insn_little_arm (pc=1076923648, info=0xffffda24) at ../../opcodes/arm-dis.c:4977
#7 0x0804d073 in ?? ()
#8 0x0804e501 in ?? ()
#9 0xf7e10fd7 in bfd_map_over_sections (abfd=0x809d038, operation=0x804dbc8, user_storage=0xffffda24) at ../../bfd/section.c:1285
#10 0x0804e9aa in ?? ()
#11 0x08050e02 in ?? ()
#12 0x08050f72 in ?? ()
#13 0x0805115d in ?? ()
#14 0x08051a4d in ?? ()
#15 0xf7c77113 in __libc_start_main (main=0x805116e, argc=3, ubp_av=0xffffdca4, init=0x8088290, fini=0x8088300, rtld_fini=0xf7fecba0, stack_end=0xffffdc9c)
    at libc-start.c:226
#16 0x0804a2e1 in ?? ()
Backtrace stopped: Not enough registers or memory available to unwind further
(gdb)

See also LP: #974832. Doesn't appear in 2.22 on x86_64.

Still happens on i386 under precise:

root@puchatek:/etc/apt# arm-linux-gnueabi-objdump --version
GNU objdump (GNU Binutils for Ubuntu) 2.22
Copyright 2011 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
root@puchatek:/etc/apt# arm-linux-gnueabi-objdump -D aboot

aboot: file format elf32-littlearm

Disassembly of section .text:

40308000 <_start>:
40308000: e24f7008 sub r7, pc, #8
40308004: e28f8028 add r8, pc, #40 ; 0x28
40308008: e5988000 ldr r8, [r8]
4030800c: e0887007 add r7, r8, r7
40308010: e59f8030 ldr r8, [pc, #48] ; 40308048 <disable_irqs+0x8>
40308014: e59f9030 ldr r9, [pc, #48] ; 4030804c <disable_irqs+0xc>

40308018 <copy>:
40308018: e4176004 ldr r6, [r7], #-4
4030801c: e4096004 str r6, [r9], #-4
40308020: e1590008 cmp r9, r8
40308024: 1afffffb bne 40308018 <copy>
40308028: e59f8020 ldr r8, [pc, #32] ; 40308050 <disable_irqs+0x10>
4030802c: e12fff18 bx r8
40308030: eafffffe b 40308030 <copy+0x18>

40308034 <size>:
40308034: 0000209c muleq r0, ip, r0

40308038 <enable_irqs>:
40308038: f1080080 cpsie i
4030803c: e12fff1e bx lr

40308040 <disable_irqs>:
40308040: f10c0080 cpsid i
40308044: e12fff1e bx lr
40308048: 40308000 eorsmi r8, r0, r0
4030804c: 4030a09c mlasmi r0, ip, r0, sl
40308050: 40309879 eorsmi r9, r0, r9, ror r8

40308054 <_serial_putc>:
40308054: 4b04 ldr r3, [pc, #16] ; (40308068 <_serial_putc+0x14>)
40308056: 681b ldr r3, [r3, #0]
40308058: f103 0214 add.w r2, r3, #20
4030805c: 7811 ldrb r1, [r2, #0]
4030805e: 0689 lsls r1, r1, #26
40308060: d5fc bpl.n 4030805c <_serial_putc+0x8>
40308062: 7018 strb r0, [r3, #0]
40308064: 4770 bx lr
40308066: bf00 nop
40308068: 40309f94 mlasmi r0, r4, pc, r9 ; <UNPREDICTABLE>

4030806c <serial_init>:
4030806c: 4b0d ldr r3, [pc, #52] ; (403080a4 <serial_init+0x38>)
4030806e: 2200 movs r2, #0
40308070: b510 push {r4, lr}
40308072: 2483 movs r4, #131 ; 0x83
40308074: 6819 ldr r1, [r3, #0]
40308076: 710a strb r2, [r1, #4]
40308078: 2107 movs r1, #7
4030807a: 6818 ldr r0, [r3, #0]
4030807c: f880 1020 strb.w r1, [r0, #32]
40308080: 6818 ldr r0, [r3, #0]
4...

1260 lines of output instead of 9351

Same happens with objdump from binutils-multiarch.

Looks like I found out where problem is.

With this patch applied binutils/cross works fine on i386.

the patch is wrong. it should conditionalize on the target arch instead

Cross part has own copy of --enable-targets block. We can unify it during q-cycle.

cross binutils is now separate package

this was fixed for 2.23 in quantal

fixed in precise (12.04 LTS) and later