On 02/07/2011 07:22 AM, naveen yadav wrote:
Thanks a lot for your input.
This is o/p for my busybox.I am booting with INITRAMFS. and kernel
version is 2.6.30.9.
I also try latest codesourcery mips toolchain and result is same. I
could not get any hint to debug this issue.
The Debian mips/mipsel root filesystems will work with 64K pages.
Install Debian, then use a chroot environment to debug your root
filesystem. You should even be able to do that from within qemu.
#mips-linux-gnu-readelf -l busybox
Elf file type is EXEC (Executable file)
Entry point 0x400180
There are 5 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
REGINFO 0x0000f4 0x004000f4 0x004000f4 0x00018 0x00018 R 0x4
LOAD 0x000000 0x00400000 0x00400000 0x1a8c6f 0x1a8c6f R E 0x10000
LOAD 0x1a9000 0x005b9000 0x005b9000 0x03170 0x084ac RW 0x10000
NOTE 0x0000d4 0x004000d4 0x004000d4 0x00020 0x00020 R 0x4
TLS 0x1ab464 0x005bb464 0x005bb464 0x00018 0x0004c R 0x4
Why are you statically linking glibc? That is usually never a good idea.
Other than that it looks reasonably sane.
Section to Segment mapping:
Segment Sections...
00 .reginfo
01 .note.ABI-tag .reginfo .rel.dyn .init .text
__libc_freeres_fn __libc_thread_freeres_fn .fini .rodata
__libc_subfreeres __libc_atexit __libc_thread_subfreeres
.gcc_except_table
02 .eh_frame .tdata .ctors .dtors .jcr .data.rel.ro .data .got
.sdata .sbss .bss __libc_freeres_ptrs
03 .note.ABI-tag
04 .tdata .tbss
On Fri, Feb 4, 2011 at 11:09 PM, David Daney<ddaney@xxxxxxxxxxxxxxxxxx> wrote:
On 02/04/2011 08:26 AM, Ian Lance Taylor wrote:
keshav yadav<keshav.yadav2005@xxxxxxxxx> writes:
I observe one different behavior when we have page size set to 4KB or
16KB in kernel busybox receive argc[0] argument correct, but
when page size set to 64KB I am getting argv[0] as empty. So what may
be issue. I am using codesourcercy toolchain.
I have no idea what the problem but I know that it is extremely unlikely
to have anything to do with gcc.
I agree.
We routinely run programs compiled with a wide variety of stock GCC
versions, under all three MIPS/Linux ABIs (o32, n32, n64) on kernels with
4K, 8K, 16K, 32K and 64K page sizes with no problems.
If you suspect a defect in your toolchain, you could try building a 'stock'
toolchain with recent Binutils and GCC versions.
David Daney
