[Bug binutils/10199] New: 'nm' compiled for Linux -> Windows cross compilation silently ignores -S switch

[sergstesh at yahoo dot com]

I have an environment for cross compilation and cross Linking for Windows under
Linux, the environment was built using

http://www.profv.de/mingw_cross_env/README.html ->
http://www.profv.de/mingw_cross_env/mingw_cross_env-2.5.tar.gz
.

It works good enough for me producing working Windows console executables.

The following session shows the problem reported in the summary - '-S' switche
is silently ignored by 'nm'; as 'objdump' shows, the .o files are practically
equivalent, so if '-S' works with Linux .o file, it should also work with
Windows one.

The session:

address@hidden:~/try_ltdl> cat -n f.c
     1  unsigned lib_function(double input)
     2    {
     3    return (unsigned)input;
     4    }
address@hidden:~/try_ltdl> gcc -c f.c -o f.lin.o
address@hidden:~/try_ltdl> ~/mingwi686/bin/i686-mingw32msvc-nm -S f.lin.o
00000000 00000033 T lib_function
address@hidden:~/try_ltdl> ~/mingwi686/bin/i686-mingw32msvc-gcc -c f.c -o 
f.win.o
address@hidden:~/try_ltdl> ~/mingwi686/bin/i686-mingw32msvc-nm -S f.win.o
00000000 b .bss
00000000 d .data
00000000 t .text
00000000 T _lib_function
address@hidden:~/try_ltdl> ~/mingwi686/bin/i686-mingw32msvc-objdump -S f.lin.o

f.lin.o:     file format elf32-i386


Disassembly of section .text:

00000000 <lib_function>:
   0:   55                      push   %ebp
   1:   89 e5                   mov    %esp,%ebp
   3:   83 ec 18                sub    $0x18,%esp
   6:   8b 45 08                mov    0x8(%ebp),%eax
   9:   89 45 f8                mov    %eax,-0x8(%ebp)
   c:   8b 45 0c                mov    0xc(%ebp),%eax
   f:   89 45 fc                mov    %eax,-0x4(%ebp)
  12:   dd 45 f8                fldl   -0x8(%ebp)
  15:   d9 7d f6                fnstcw -0xa(%ebp)
  18:   0f b7 45 f6             movzwl -0xa(%ebp),%eax
  1c:   b4 0c                   mov    $0xc,%ah
  1e:   66 89 45 f4             mov    %ax,-0xc(%ebp)
  22:   d9 6d f4                fldcw  -0xc(%ebp)
  25:   df 7d e8                fistpll -0x18(%ebp)
  28:   d9 6d f6                fldcw  -0xa(%ebp)
  2b:   8b 45 e8                mov    -0x18(%ebp),%eax
  2e:   8b 55 ec                mov    -0x14(%ebp),%edx
  31:   c9                      leave
  32:   c3                      ret
address@hidden:~/try_ltdl> ~/mingwi686/bin/i686-mingw32msvc-objdump -S f.win.o

f.win.o:     file format pe-i386


Disassembly of section .text:

00000000 <_lib_function>:
   0:   55                      push   %ebp
   1:   89 e5                   mov    %esp,%ebp
   3:   83 ec 18                sub    $0x18,%esp
   6:   8b 45 08                mov    0x8(%ebp),%eax
   9:   89 45 f8                mov    %eax,-0x8(%ebp)
   c:   8b 45 0c                mov    0xc(%ebp),%eax
   f:   89 45 fc                mov    %eax,-0x4(%ebp)
  12:   dd 45 f8                fldl   -0x8(%ebp)
  15:   d9 7d f6                fnstcw -0xa(%ebp)
  18:   0f b7 45 f6             movzwl -0xa(%ebp),%eax
  1c:   b4 0c                   mov    $0xc,%ah
  1e:   66 89 45 f4             mov    %ax,-0xc(%ebp)
  22:   d9 6d f4                fldcw  -0xc(%ebp)
  25:   df 7d e8                fistpll -0x18(%ebp)
  28:   d9 6d f6                fldcw  -0xa(%ebp)
  2b:   8b 45 e8                mov    -0x18(%ebp),%eax
  2e:   8b 55 ec                mov    -0x14(%ebp),%edx
  31:   c9                      leave
  32:   c3                      ret
  33:   90                      nop
address@hidden:~/try_ltdl>

-- 
           Summary: 'nm' compiled for Linux -> Windows cross compilation
                    silently ignores -S switch
           Product: binutils
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: sergstesh at yahoo dot com
                CC: bug-binutils at gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-mingw32msvc


http://sourceware.org/bugzilla/show_bug.cgi?id=10199

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