Hi Tristan,
Again ... I know ;-) .
Just to say that the build of ghdl -026 fails under cygwin.
Something is wrong with the configuration in order to use the win32
fiber api.
I tried to use the default implementation using pthread without
success. In this case I can build ghdl but I have an error during
the run time ( wait inside sensitive process and obviously this not
the case ! ).
This error suggests me that there is actually an error with the
implementation of the grt and with the use of pthread.
In fact the issue is the way the pthreads are implemented under cygwin.
As Phil Reid (Thanks Phil ;-) ) suggested fews month ago I apply
his patch ( call pthead_mutexattr_settype to set the type of mutex
to PTHREAD_MUTEX_DEFAULT)
And it ... works :-) .
I plan to try to solve the issue with the configuration in order to be
able to use the win32 fiber .
I let you inform if there is any progress.
In the meantime it should be nice to apply the Phil's patch to the
code since it only impacts the cygwin configuration.
I just remind (for those that don't understand why I want a cygwin
version) that the cywin version of ghdl is able to build object
(.o) files and probably ( I hope , I have to test ...) allows us to
use fli , vpi ( maybe we have to do some modification to be able to
load a shared library). The win32 native version of ghdl is not able
to do that .....
Regards
Michel Agoyan
===========================================================================
Hereafter few lines describing how to compile ghdl-026 under cygwin :
1)be sure that the Devel/gcc-ada package is installed ( obviously you
need also Devel/gcc)
2) cd /tmp
retrieve the ghdl source : wget
http://ghdl.free.fr/ghdl-0.26.tar.bz2
retrieve the gcc source : wget
ftp://ftp.gnu.org/pub/gnu/gcc/gcc-4.1.2/gcc-core-4.1.2.tar.bz2
wget
ftp://ftp.gnu.org/pub/gnu/gcc/gcc-4.1.2/gcc-ada-4.1.2.tar.bz2
tar -xjvf ghdl-0.26.tar.bz2
tar -xjvf gcc-core-4.1.2.tar.bz2
tar -xjvf gcc-ada-4.1.2.tar.bz2
3) Build gcc-4.1.2 (the last version of gcc under cygwin is
gcc-3.4.4 and we need gcc-4.x.x in oder to build ghdl.)
cd gcc-4.1.2
./configure --prefix=/usr/local/gcc-4.1.2 --enable-languages=c,c++,ada
This builds a Makefile to place the new gcc into the directory
/usr/local/gcc-4.1.2
Something is wrong with the ada configuration , we have to set the
environment variable HOST_SUBDIR :
export HOST_SUBDIR=host-i686-pc-cygiwin (depends on your own host !)
make
make install
4) Now we have a gcc-4.1.2 tools chain (c,c++,ada) under
/usr/local/gcc-4.1.2)
modify your path in order to use this version : export
PATH=/usr/local/gcc-4.1.2/bin:$PATH
cd /tmp
rm -r gcc-4.1.2
tar -xjvf gcc-core-4.1.2.tar.bz2
tar -xjvf gcc-ada-4.1.2.tar.bz2
Apply the Phil's Patch
(https://mail.gna.org/public/ghdl-discuss/2006-10/msg00001.html) , I
have regenerate the patchs for the version 026 and enclosed them to
this email
cd /tmp/ghdl-0.26/vhdl/grt/config
patch pthread.c < pthread.patch
cd /tmp/ghdl-0.26/vhdl
patch Makefile.in < Makefile.in.patch
cd /tmp
cp -R ghdl-0.26/vhdl/ gcc-4.1.2/gcc/
./configure --prefix=/usr/local/ghdl --enable-languages=vhdl
make
make install
Add /usr/local/ghdl to your PATH.
*
*
------------------------------------------------------------------------
--- pthread.c 2006-03-10 02:49:44.000000000 +0100
+++ pthread_new.c 2007-05-16 21:21:45.219848900 +0200
@@ -28,6 +28,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <setjmp.h>
+#include <assert.h>
//#define INFO printf
#define INFO (void)
@@ -37,6 +38,9 @@
typedef struct
{ pthread_t thread; // stack's thread
pthread_mutex_t mutex; // mutex to suspend/resume thread
+#if defined(__CYGWIN__)
+ pthread_mutexattr_t mxAttr;
+#endif
void (*Func)(void*); // stack's FUNC
void* Arg; // ARG passed to FUNC
} Stack_Type_t, *Stack_Type;
@@ -54,10 +58,16 @@
{ INFO("grt_stack_init\n");
INFO(" main_stack_context=0x%08x\n", &main_stack_context);
- pthread_mutex_init(&(main_stack_context.mutex), NULL);
+#if defined(__CYGWIN__)
+ assert(pthread_mutexattr_init(&(main_stack_context.mxAttr)) == 0);
+
assert(pthread_mutexattr_settype(&(main_stack_context.mxAttr),PTHREAD_MUTEX_DEFAULT)
== 0);
+
assert(pthread_mutex_init(&(main_stack_context.mutex),&(main_stack_context.mxAttr))
== 0);
+#else
+ assert(pthread_mutex_init(&(main_stack_context.mutex), NULL) == 0);
+#endif
// lock the mutex, as we are currently running
- pthread_mutex_lock(&(main_stack_context.mutex));
+ assert(pthread_mutex_lock(&(main_stack_context.mutex))== 0);
current = &main_stack_context;
@@ -105,10 +115,17 @@
newStack->Arg= Arg;
// create mutex
- pthread_mutex_init(&(newStack->mutex), NULL);
+
+#if defined(__CYGWIN__)
+ assert(pthread_mutexattr_init(&(newStack->mxAttr)) == 0);
+ assert(pthread_mutexattr_settype(&(newStack->mxAttr),
PTHREAD_MUTEX_DEFAULT) == 0);
+ assert(pthread_mutex_init(&(newStack->mutex), &(newStack->mxAttr)) == 0);
+#else
+ assert(pthread_mutex_init(&(newStack->mutex), NULL) == 0);
+#endif
// block the mutex, so that thread will blocked in grt_stack_loop
- pthread_mutex_lock(&(newStack->mutex));
+ assert(pthread_mutex_lock(&(newStack->mutex)) == 0);
INFO(" newStack=0x%08x\n", newStack);
@@ -135,12 +152,12 @@
// unlock 'To' mutex. this will make the other thread either
// - starts for first time in grt_stack_loop
// - resumes at lock below
- pthread_mutex_unlock(&(To->mutex));
+ assert(pthread_mutex_unlock(&(To->mutex))==0);
// block until 'From' mutex becomes available again
// as we are running, our mutex is locked and we block here
// when stacks are switched, with above unlock, we may proceed
- pthread_mutex_lock(&(From->mutex));
+ assert(pthread_mutex_lock(&(From->mutex))==0);
if (From == &main_stack_context && need_longjmp != 0)
longjmp (run_env, need_longjmp);
------------------------------------------------------------------------
--- Makefile.in 2007-04-08 18:46:39.000000000 +0200
+++ Makefile_new.in 2007-05-16 21:35:14.251098900 +0200
@@ -472,7 +472,9 @@
GRT_TARGET_OBJS=win32.o clock.o
endif
ifeq ($(filter-out i%86 cygwin,$(arch) $(osys)),)
- GRT_TARGET_OBJS=win32.o clock.o
+# GRT_TARGET_OBJS=win32.o clock.o
+ GRT_TARGET_OBJS=pthread.o times.o
+ GRT_EXTRA_LIB=-lpthread -ldl -lm
endif
# Fall-back: use a generic implementation based on pthreads.
ifndef GRT_TARGET_OBJS
------------------------------------------------------------------------
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