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Qian Li Guo

2008-Feb-28 02:27 UTC

Problem of porting openssh to arm9 platform

Hi;

   I meet some problem when porting openssh.Please help me

   The following content is wrong info:

# strace ssh
execve("/usr/bin/ssh", ["ssh"], [/* 16 vars */]) = 0
mmap2(NULL, 20, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40005000
stat("/etc/ld.so.cache", {st_mode=S_IFREG|0644, st_size=1796, ...}) =
0
open("/etc/ld.so.cache", O_RDONLY)      = 4
mmap2(NULL, 1796, PROT_READ, MAP_SHARED, 4, 0) = 0x40006000
close(4)                                = 0
open("/lib/libcrypto.so.0.9.8", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=1136576, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0,X\3\0004"...,
4096) 4096
mmap2(NULL, 1183744, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x4000e000
mmap2(0x4000e000, 1060052, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
= 0x4000e000
mmap2(0x40119000, 74620, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4,
0x103) = 0x40119000
mmap2(0x4012c000, 10364, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4012c000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libutil.so.0", O_RDONLY)     = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=4656, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4,
"\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0008\10\0\000"...,
4096) = 4096
mmap2(NULL, 36864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4012f000
mmap2(0x4012f000, 3160, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x4012f000
mmap2(0x40137000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x40137000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libz.so.1", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=71984, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\304\26\0"...,
4096) 4096
mmap2(NULL, 106496, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x40138000
mmap2(0x40138000, 70176, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x40138000
mmap2(0x40151000, 1260, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4,
0x11) = 0x40151000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libcrypt.so.0", O_RDONLY)    = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=12892, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4,
"\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\234\4\0\000"...,
4096) = 4096
mmap2(NULL, 118784, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x40152000
mmap2(0x40152000, 9380, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x40152000
mmap2(0x4015c000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4, 0x2)
= 0x4015c000
mmap2(0x4015d000, 70864, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4015d000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libresolv.so.0", O_RDONLY)   = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=4640, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4,
"\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\204\2\0\000"...,
4096) = 4096
mmap2(NULL, 36864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4016f000
mmap2(0x4016f000, 668, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x4016f000
mmap2(0x40177000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x40177000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libgcc_s.so.1", O_RDONLY)    = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=31736, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0X\25\0\000"...,
4096)
= 4096
mmap2(NULL, 65536, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40178000
mmap2(0x40178000, 28800, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x40178000
mmap2(0x40187000, 548, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4, 0x7)
= 0x40187000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0 \251\0\000"...,
4096)
= 4096
mmap2(NULL, 360448, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) 0x40188000
mmap2(0x40188000, 303940, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
= 0x40188000
mmap2(0x401da000, 5172, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4,
0x4a) = 0x401da000
mmap2(0x401dc000, 16020, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x401dc000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libdl.so.0", O_RDONLY)       = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=8900, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
0x40007000
read(4, "\177ELF\1\1\1a\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0(\10\0\000"...,
4096)
= 4096
mmap2(NULL, 40960, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x401e0000
mmap2(0x401e0000, 5868, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED, 4, 0)
0x401e0000
mmap2(0x401e9000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4, 0x1)
= 0x401e9000
close(4)                                = 0
munmap(0x40007000, 4096)                = 0
open("/lib/libgcc_s.so.1", O_RDONLY)    = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=31736, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
open("/lib/libgcc_s.so.1", O_RDONLY)    = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=31736, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
open("/lib/libc.so.0", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=309856, ...}) = 0
close(4)                                = 0
munmap(0x40006000, 1796)                = 0
stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=21096,
...}) = 0
mprotect(0x40137000, 4096, PROT_READ)   = 0
mprotect(0x4015c000, 4096, PROT_READ)   = 0
mprotect(0x40177000, 4096, PROT_READ)   = 0
mprotect(0x401da000, 4096, PROT_READ)   = 0
mprotect(0x401e9000, 4096, PROT_READ)   = 0
mprotect(0x4000c000, 4096, PROT_READ)   = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 opost isig icanon echo
...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 opost isig icanon echo
...}) = 0
open("/dev/null", O_RDWR|O_LARGEFILE)   = 4
close(4)                                = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Process 343 detached

Thanks

Peter Stuge

2008-Feb-28 09:38 UTC

head link

Problem of porting openssh to arm9 platform

On Wed, Feb 27, 2008 at 06:27:23PM -0800, Qian Li Guo
wrote:> I meet some problem when porting openssh.Please help me
Let's hope we can.

> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0755, st_size=21096,
...}) = 0
..> open("/dev/null", O_RDWR|O_LARGEFILE)   = 4
> close(4)                                = 0
> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> +++ killed by SIGSEGV +++
> Process 343 detached
This doesn't reveal too much. It doesn't show where ssh crashes.

Could you try building ssh with debugging enabled (-g option to gcc)
and running ssh under gdb - then when it crashes type "bt" to
recieve a backtrace showing in which function the crash happens.

Another, somewhat less informative but still interesting, method is
to run ssh -vvv and see what output you get. That can also indicate
where the problem is happening but running with gdb would be best.

//Peter

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