[Nestedvm] NestedVM: Buffer overflow error compiling nestedvm

[C.F.Scheidecker Antunes]

Hi all,

I was having the error of a missing param for the function open and
was able to fix that. That was the error:

inlined ‘collect_execute’ em ../../gcc-3.3.6/gcc/collect2.c:1575:20:
/usr/include/x86_64-linux-gnu/bits/fcntl2.h:51:24: erro: call to
‘__open_missing_mode’ declared with attribute error: open with O_CREAT
in second argument needs 3 arguments
make[3]: ** [collect2.o] Erro 1
make[3]: Saindo do diretório
`/home/antunes/nestedvm/nestedvm/upstream/build/gcc-obj/gcc'

So I have changed the code on collect2.c to include the following
parameter: 0664

/* Open response file.  */
      // original:
      // redir_handle = open (redir, O_WRONLY | O_TRUNC | O_CREAT);
      // modificado
      redir_handle = open (redir, O_WRONLY | O_TRUNC | O_CREAT,0664);

Now, it all looked good until I had a buffer overflow error as follows.

I did a search on the forum and found Andre with the same error here:
https://lists.hcoop.net/pipermail/nestedvm/2011-May/000116.html

But I could not find how he fixed the same error. Any one knows how to do it?

I intend to collect instructions on how to complete this build and
send it to the list once I have all figured out.

Thanks.

Carlos.

Here is the error:


*** buffer overflow detected ***: mips-unknown-elf-ar terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x2b7246c177f7]
/lib/x86_64-linux-gnu/libc.so.6(+0xf7710)[0x2b7246c16710]
/lib/x86_64-linux-gnu/libc.so.6(+0xf6b79)[0x2b7246c15b79]
/lib/x86_64-linux-gnu/libc.so.6(_IO_default_xsputn+0xdd)[0x2b7246b94e7d]
/lib/x86_64-linux-gnu/libc.so.6(_IO_padn+0xf0)[0x2b7246b89450]
/lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x228a)[0x2b7246b6877a]
/lib/x86_64-linux-gnu/libc.so.6(__vsprintf_chk+0x94)[0x2b7246c15c14]
/lib/x86_64-linux-gnu/libc.so.6(__sprintf_chk+0x7d)[0x2b7246c15b5d]
mips-unknown-elf-ar[0x407359]
mips-unknown-elf-ar[0x40932f]
mips-unknown-elf-ar[0x40cc79]
mips-unknown-elf-ar[0x404afd]
mips-unknown-elf-ar[0x4050b5]
mips-unknown-elf-ar[0x402638]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x2b7246b4030d]
mips-unknown-elf-ar[0x402935]
======= Memory map: ========
00400000-0046b000 r-xp 00000000 08:05 39061427
  /home/antunes/nestedvm/nestedvm/upstream/install/bin/mips-unknown-elf-ar
0066a000-0066b000 r--p 0006a000 08:05 39061427
  /home/antunes/nestedvm/nestedvm/upstream/install/bin/mips-unknown-elf-ar
0066b000-0066c000 rw-p 0006b000 08:05 39061427
  /home/antunes/nestedvm/nestedvm/upstream/install/bin/mips-unknown-elf-ar
0066c000-0066e000 rw-p 00000000 00:00 0
016c6000-01810000 rw-p 00000000 00:00 0                                  [heap]
2b72468fc000-2b724691d000 r-xp 00000000 08:05 28970246
  /lib/x86_64-linux-gnu/ld-2.13.so
2b724691d000-2b724691f000 rw-p 00000000 00:00 0
2b7246b1c000-2b7246b1d000 r--p 00020000 08:05 28970246
  /lib/x86_64-linux-gnu/ld-2.13.so
2b7246b1d000-2b7246b1f000 rw-p 00021000 08:05 28970246
  /lib/x86_64-linux-gnu/ld-2.13.so
2b7246b1f000-2b7246cb4000 r-xp 00000000 08:05 28970239
  /lib/x86_64-linux-gnu/libc-2.13.so
2b7246cb4000-2b7246eb3000 ---p 00195000 08:05 28970239
  /lib/x86_64-linux-gnu/libc-2.13.so
2b7246eb3000-2b7246eb7000 r--p 00194000 08:05 28970239
  /lib/x86_64-linux-gnu/libc-2.13.so
2b7246eb7000-2b7246eb8000 rw-p 00198000 08:05 28970239
  /lib/x86_64-linux-gnu/libc-2.13.so
2b7246eb8000-2b7246ec1000 rw-p 00000000 00:00 0
2b7246ec1000-2b724740a000 r--p 00000000 08:05 4587586
  /usr/lib/locale/locale-archive
2b724740a000-2b7247411000 r--s 00000000 08:05 28970381
  /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache
2b724742f000-2b7247444000 r-xp 00000000 08:05 28967762
  /lib/x86_64-linux-gnu/libgcc_s.so.1
2b7247444000-2b7247643000 ---p 00015000 08:05 28967762
  /lib/x86_64-linux-gnu/libgcc_s.so.1
2b7247643000-2b7247644000 r--p 00014000 08:05 28967762
  /lib/x86_64-linux-gnu/libgcc_s.so.1
2b7247644000-2b7247645000 rw-p 00015000 08:05 28967762
  /lib/x86_64-linux-gnu/libgcc_s.so.1
7fff311c1000-7fff311e5000 rw-p 00000000 00:00 0                          [stack]
7fff311ff000-7fff31200000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
  [vsyscall]
make[4]: *** [libgcc.a] Abortado
make[4]: ** Apagando arquivo `libgcc.a'
make[4]: Saindo do diretório
`/home/antunes/nestedvm/nestedvm/upstream/build/gcc-obj/gcc'
make[3]: ** [stmp-multilib] Erro 2
make[3]: Saindo do diretório
`/home/antunes/nestedvm/nestedvm/upstream/build/gcc-obj/gcc'
make[2]: ** [all-gcc] Erro 2
make[2]: Saindo do diretório
`/home/antunes/nestedvm/nestedvm/upstream/build/gcc-obj'
make[1]: ** [tasks/build_gcc] Erro 2
make[1]: Saindo do diretório `/home/antunes/nestedvm/nestedvm/upstream'
make: ** [upstream/tasks/build_gcc] Erro 2