------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca
2005-11-19 16:50 -------
Subject: Re: FAIL: weakref tests
> Hey, it's the same FAILs as for mmix-knuth-mmixware!
> Ever since rth's change from ".set" to "=" for these tests.
> I scratched the "host" and "build" fields, as this was a
> cross from i686-pc-linux-gnu (FC2).
1) On hppa, the operation needs to be indented. This allows
weakref1.s to assemble. It is interesting that this seems to
work. Before I saw this, I thought it was impossible to alias
a symbol under hpux. The HP assembler doesn't allow it, and
.equ and .set don't work with GAS. Never tried .equiv.
2) With some tweaking of the .d files, I can get "relocations",
"global syms" and "local syms" to pass on hppa2.0w-hp-hpux11.11.
However, I don't have solution for "strong undefined syms"
or "weak undefined syms".
I see in dump.o:
U wa1
U wb1
U wc1
U wh2
U wh3
U wh4
U wh5
U wh6
U wh7
U wm6
U wm7
U wm8
U ww1
U ww10
U ww2
U ww3
U ww4
U ww5
U ww6
U ww7
U ww8
U ww9
With odump I see for wa1:
00000000 00000000 Data Unsat 0 ......S... 3 00000 wa1
The 'S' indicates a "weak" secondary definition. On hppa-linux,
we have:
w wa1
w wb1
w wc1
w wh2
...
So, the symbols are weak and local. I think that this is a
problem under hpux as secondary definitions always have have
univeral (global) or unsatisfied scope. I'm not sure why it's
necessary to output weak locals. There's no mention of such symbols
in the SYSV ABI as far as I know.
I need to find a solution as to how to handle weak references under
hpux as their introduction is also causing problems in GCC.
Dave
--
http://sourceware.org/bugzilla/show_bug.cgi?id=1879
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