Defining __USE_MINGW_ANSI_STDIO=1 provides C99 compatible printf
and scanf routines, which avoids the need for workarounds for the
various failings of the Microsoft C runtime library.
The Microsoft C runtime does not support the %zu and %zd formats.
Previously these were replaced with %u and %d, but for 64-bit we
need to use %llu and %lld.
Before this patch, WARNING_FLAGS applied to both C and C++,
and WARNING_FLAGS_CXX applied to C++ only.
This patch adds a WARNING_FLAGS_CC that applies to C only.
That change should be generally useful; in particular the C
code is almost ready for -Wstrict-prototypes, which does not
apply to C++.
-Wextra (or -W) used to only apply to C++ via WARNING_FLAGS_CXX.
This patch moves it to WARNING_FLAGS, to apply to both C and C++.
Unfortunately, that triggers a ton of warnings.
For now, cover most of the new warnings up by adding
-Wno-unused -Wno-sign-compare -Wno-type-limits
to WARNING_FLAGS_CC. In the long run, I want to change the C coding
style, and take off these disable-warning flags. But those changes
can dribble in as separate commits; this patch is big enough already.
Actually fix a couple missing-field-initializers in libveriuser/veriusertfs.c.
Added: basic vpiPort VPI Objects for vpiModulkes
vpiDirection, vpiPortIndex, vpiName, vpiSize attributes
Since ports do not exist as net-like entities (nets either side
module instance boundaries are in effect connect directly in
the language front-ends internal representation) the port information
is effectively just meta-data passed through t-dll interface and
output as a additional annotation of module scopes in vvp.
Added: vpiLocalParam attribute for vpiParameter VPI objects
Added: support build for 32-bit target on 64-bit host (--with-m32
option to configure.in and minor tweaks to Makefiles and systemc-vpi).
MinGW has reverted to using the Microsoft msvcrt0 implementation
of the strtod() function. This implementation doesn't accept "INF"
"NaN". MinGW does provide a C99 compliant implementation of this
function called __strtod(). We need to force the linker to replace
all references to strtod() with references to __strtod().
In ivl_alloc.h we redefine malloc(), realloc() and calloc() to have
standard error checking. We don't want to do this for anything that
comes from the standard headers. This specifically doesn't work if
a C++ header files does std::malloc, etc.
Also change to -W instead of -Wextra since that is more portable. I
plan to add a check from -Wextra and use it when available since it
is more descriptive.
This patch adds -Wextra to the compilation flags for C++ files in
the vvp and vpi subdirectories. It also fixes all the problems
found while adding -Wextra. This mostly entailed removing some of
the unused arguments, removing the name for others and using the
correct number of initializers.
The functions (malloc, free, etc.) that used to be provided in
malloc.h are now provided in cstdlib for C++ files and stdlib.h for
C files. Since we require a C99 compliant compiler it makes sense
that malloc.h is no longer needed.
This patch also modifies all the C++ files to use the <c...>
version of the standard C header files (e.g. <cstdlib> vs
<stdlib.h>). Some of the files used the C++ version and others did
not. There are still a few other header changes that could be done,
but this takes care of much of it.
Using -xMD generates dependencies for all files including the
system files. This could point to some system .cc files and
was causing GNU make to try to build these files if the
dependency files existed. Using -xMMD generates only the
dependencies outside the system directories.
It's possible that the OpenSolaris make knows how to deal with
this correctly, but Icarus needs GNU make.
Some new shadow issues have crept in. This patch fixes these new
issues and adds -Wshadow to the normal warning flags to keep any
new occurrences from happening.
This patch updates all the Makefile.in files and configure.in
as follows:
Do not use the -Wall warning flag when using the SunPro compiler.
The SunPro compiler uses -xMD instead of -MD.
There are still more fixes needed before Icarus will compile
on OpenSolaris.
This is the initial commit in an effort to build a 1364-1995
back end for Icarus Verilog. It is expected that this back end
will allow the user to write 1364-2005 RTL and then using this
back end (converter) generate functionally equivalent 1364-1995
compatible code. This can be used to support older tools in a
work flow. The primary focus will be simulation equivalence,
though I expect to verify logical equivalence as well.
This patch updated the four file lxt_write.{c,h} and
lxt2_write.{c,h} to the latest ones from GTKWave. This
required adding the wavealloc.h include file and an
update to configure.in and vpi/vpi_config.h.in to add
checks/definitions for ALLOCA and FSEEKO.
When AC_PROG_CC_C99 was added recently we created an implicit
requirement for autoconf version 2.60. This patch makes that
implicit requirement and explicit requirement.
This is needed to get vvp to compile under MacOS 10.6 and possibly other
64 bit systems that define uint64_t as unsigned long long vs unsigned
long (both are 64 bits).
Add a configuration check that says we would like to use C99 if the
compiler supports it. Also change the lround(), nan(), fmin() and
fmax() checks to look in the default libraries as well as the math
library.
Update the iverilog-vpi sh script to correctly quote CC since it
may now have two words (gcc -std=gnu99).
Add a missing int for main in draw_tt.c.
Icarus Verilog internally is not white-space clean. We need to make
sure the configured paths that cause the most trouble are clean and
usable. It is still possible to mess things up downstream, but at least
this should help.
This patch adds code to free most of the memory when vvp
finishes. It also adds valgrind hooks to manage the various
memory pools. The functionality is enabled by passing
--with-valgrind to configure. It requires that the
valgrind/memcheck.h header from a recent version of
valgrind be available. It check for the existence of this
file, but not that it is new enough (version 3.1.3 is known
to not work and version 3.4.0 is known to work).
You can still use valgrind when this option is not given,
but you will have memory that is not released and the
memory pools show as a single block.
With this vvp is 100% clean for many of the tests in the
test suite. There are still a few things that need to be
cleaned up, but it should be much easier to find any real
leaks now.
Enabling this causes a negligible increase in run time and
memory. The memory could be a problem for very large
simulations. The increase in run time is only noticeable on
very short simulations where it should not matter.
Collapse all the configure checks to a single configure script in
the root of the source tree. This makes the configure process run
a lot faster, expecially on Windows systems that are slower in general.
It is recommended that AC_CYGWIN not be used and under MinGW
the previous test was complaining about multiple calls to
AC_CANONICAL_HOST. The new test performs the same function
and also displays the MinGW status if we are compiling on
windows.
Also removed a AX_CCP_IDENT call in the vpi directory and
tgt-null is built by the top configure so there is no need
to try to run configure in that directory.
This configure option causes the installed commands to have
a suffix string that makes them distinct from other versions
that also have a suffix string. This allows for multiple
installed versions of Icarus Verilog.
Also, move installed C/C++ header files into a subdirectory of
their own under the target include directory, to make clearer
the purpose and source of those files.
Martin Whitaker
Udi Finkelstein
Cary R
Martin Whitaker
Larry Doolittle
Stephen Williams
Andrew Stevens