Re: emulation on i386-coff, i386-elf patches

[Robert Lipe <robertl@dgii.com>]

> It looks to me like you need to hack md_apply_fix3 in tc-i386.c.  In
> general, anything that does an #ifdef OBJ_ELF or #ifdef OBJ_COFF will
> have to be hacked.

Excellent catch, Ian.

Carving up tc-i386.c gave me exactly the results I needed.   The ELF
emulation mode of the assembler seems to be in excellent shape.  I just
watched the COFF side trip over itself, but the failure case needs trimmed
up considerably:

$ make CC='gcc ' CFLAGS=-g
gcc  -c -I. -I../../gas-961217/binutils -I../bfd -I../../gas-961217/binutils/../
bfd -I../../gas-961217/binutils/../include  -g ../../gas-961217/binutils/prdbg.c

gcc   -g  -o objdump objdump.o prdbg.o rddbg.o debug.o stabs.o ieee.o rdcoff.o -
L../bfd -lbfd -L../opcodes -lopcodes bucomm.o version.o filemode.o -L../bfd -lbf
d ../libiberty/libiberty.a
ld: line nbr entry (1125 0) found for non-relocatable symbol: section .text, fil
e prdbg.o

Note: this isn't GNU ld.

Rebuilding that specific file without -g makes it go away.   I'll pursue.


> In fact, I'm not certain that the BFD_ASSEMBLER version of the i386
> COFF assembler works correctly.  You need to make sure that if you
> configure with --target i386-coff --enable-bfd-assembler the resulting
> code works.

Building that stand-alone results in it being unable to resolve:
	obj_read_begin_hook                 read.o
	obj_symbol_new_hook                 symbols.o

I didn't pursue that aspect further.

Since you and Ken both sound doubtful of BFD_ASSEMBLER on i386 COFF, 
could you offer hints on suspected problem areas?   Sounds like I 
should take the time to get a 'make check' working.


Thanx, guys.

RJL