David G. Koontz wrote:
A quick check shows this bug has been logged last May
for the Windows ghdl 29.1 version
http://gna.org/bugs/?15993
After looking through the gna bug list again, comment #1
of bug 15966 describes the exact std_logic resolution problem:
http://gna.org/bugs/?func=detailitem&item_id=15966
"
" It seems resolution function fail on multi sources signals
(std_logic).
"
I'd suspect increasing the stack size won't help.
Correct, the stack size flags don't help.
I reduced the problem to a minimum test case by stripping
out the console writes and using just a single std_logic signal,
see footnote below.
This is one for whoever put the window version together
or has experience with the target build environment for Windows.
I can't be of any help there.
I have kept track of the other problems and workarounds that
I've seen, I'll submit them to the bug list once I create small
test cases to duplicate the problems.
I'm still new enough to ghdl that I figured I might just be
encountering an installation or pilot error.
thanks,
Brian
-------------
--
-- <t2.vhd>
--
-- simpler example of ghdl.exe crash when std_logic resolution required
-- GHDL version 0.29.1
-- WinXP SP3
--
library ieee;
use ieee.std_logic_1164.all;
entity t2 is
end t2;
architecture crash of t2 is
signal dbit : std_logic;
begin
dbit <= 'H'; -- weak pullup
dbit <= '0' after 100 ns;
end crash;
-------------
Run log:
C:\ghdl_test\zbug>ghdl -a --workdir=work.ghd t2.vhd
C:\ghdl_test\zbug>ghdl -e --workdir=work.ghd t2
C:\ghdl_test\zbug>ghdl -r --workdir=work.ghd t2 --disp-signals-table
--trace-signals --trace-processes --stack-size=65536
--stack-max-size=1048576
0: 02A6F8B0 net: -3 smode: signal #prt: 0 #drv: 2 resolved
run process .t2(crash).P0 [02A6F930]
run process .t2(crash).P1 [02A6F930]
.t2(crash).dbit 02A6F8B0 e8 --a- last_event=-9223372036854775807fs
last_active=-9223372036854775807fs val='L'; drv='L'
Now is 0ms +0
C:\Program Files\Ghdl\Bin\ghdl.exe:error: invalid memory access
(dangling accesses or stack size too small)
C:\Program Files\Ghdl\Bin\ghdl.exe:error: simulation failed
-------------
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