[Bug gas/11518] New: Support explicit relocations for Alpha ECOFF

[ro at TechFak dot Uni-Bielefeld dot DE]

Prompted by PRs gas/11516 and gas/11517, I tried to enable explicit relocations
for Alpha ECOFF, too, to see if I get further along with gas and gcc on Tru64
UNIX with this combination.  At least the trivial change of defining RELOC_OP_P
in config/tc-alpha.h is not enough: trying to assemble the jsr.s testcase from
PR gas/11516 fails with a SEGV:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
0x08091e3d in assemble_insn (opcode=0x80f2200, tok=0x80476d0, ntok=3,
insn=0x8047660, reloc=BFD_RELOC_ALPHA_ELF_LITERAL) at
/vol/gnu/src/binutils/binutils-2.20/gas/config/tc-alpha.c:2130
(gdb) p reloc_howto
$1 = (const struct reloc_howto_struct *) 0x0
(gdb) p reloc
$2 = BFD_RELOC_ALPHA_ELF_LITERAL

Obviously RELOC_OP_P also means OBJ_ELF in a couple of places, so this maze
needs to be untangled to have a chance to make gas work this way.

-- 
           Summary: Support explicit relocations for Alpha ECOFF
           Product: binutils
           Version: 2.21 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gas
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: ro at TechFak dot Uni-Bielefeld dot DE
                CC: bug-binutils at gnu dot org
GCC target triplet: alpha-dec-osf5.1b


http://sourceware.org/bugzilla/show_bug.cgi?id=11518

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