Re: Limited success with 3.0 branch on AIX

[Elena Zannoni <ezannoni@cygnus.com>]

David Edelsohn writes:
 > 	As a follow up, compiling file bss.c with IBM's XLC compiler
 > produces bss.o containing:
 > 
 > [0]     m   0x00000000        -2     3    0x67         0x0003     .file
 > [1]     a0                                                        bss.c
 > [2]     a0                                                        Wed May 16 14:08:13 2001 
 > [3]     a0                                                        IBM C and C++ Compilers Version 3.6.6.0 --- 
 > 
 > Disassembling bss.o produces an assembly file containing the directive
 > 
 > 	.file   "bss.c"
 > 
 > Assembling the disassembled file produces a new object file containing:
 > 
 > [0]     m   0x00000000        -2     1    0x67         0x0003     .file
 > [1]     a0                                                        bss.c
 > 
 > 
 > 	IBM's AIX assembler (and the GNU assembler) do not allow access to
 > all of the user-settable internal structure of XCOFF files.  This is a
 > known limitation.  There is no way to insert the information into the most
 > appropriate XCOFF location for compiler version or compiler-defined
 > information. 

Obviously this prompts the question: can the limitation be eliminated, i.e.
can the correct functionality be provided? 

If not, we'll have to use a different approach. And looks like using C_GSYM
could be the one.


Elena


 > 
 > David
 >