[Sablevm-developer] Porting SableVM to ia64 done in 3 (lazy) hours

[Grzegorz P. <gr...@se...>]

Hi!

Just wanted you to know, that "ia64" has been just added to the
list of architectures supported by SableVM JVM, next to i386 and
alpha.

Thanks to Martin Schulze <jo...@in...> who installed 
build deps on merulo.d.o and thanks to Bdale Garbee <bd...@ga...>
who asissted the port and installed the packages right after
they were ready.

"HelloWorld!" app started since the first kick.

The diff is below, at the end of this amil I also inlined very
simple&small c app that helps a bit w/ porting. It may be not so
bad idea to have it in the sources.

Maybe it's time for new release? ;-)

Best regards

					Grzegorz B. Prokopski



--- ./sablevm-1.0.4/src/libsablevm/include/jni_system_specific.h       
2002-08-14 23:29:54.000000000 -0600
+++ ./sablevm-1.0.4-new/src/libsablevm/include/jni_system_specific.h   
2002-10-11 08:49:24.000000000 -0600
@@ -15,7 +15,7 @@
 
 /* ia64, alpha and i386 are identical here */
 
-#if ((defined (__alpha__) || defined (__i386__)) && defined (__GNUC__))
+#if ((defined (__ia64__) || defined (__alpha__) || defined (__i386__))
&& defined (__GNUC__))
 
 #define JNICALL
 #define JNIEXPORT
@@ -38,3 +38,4 @@
 #endif
 
 #endif /* NOT SVM_JNI_SYSTEM_SPECIFIC_H */
+
--- ./sablevm-1.0.4/src/libsablevm/system.c     2002-08-18
23:16:06.000000000 -0600
+++ ./sablevm-1.0.4-new/src/libsablevm/system.c 2002-10-11
10:53:09.000000000 -0600
@@ -5,7 +5,7 @@
  * modification of SableVM.                                  *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#if ((defined (__alpha__) || defined (__i386__)) && defined (__GNUC__))
+#if ((defined (__ia64__) || defined (__alpha__) || defined (__i386__))
&& defined (__GNUC__))
 
 /*
 ----------------------------------------------------------------------
@@ -28,6 +28,8 @@
 
 #elif defined(__i386__)
   /* do nothing */
+#elif defined(__ia64__)
+  /* do nothing */
 #else
 #error
 #endif
@@ -99,6 +101,15 @@
 /* *INDENT-ON* */
 #endif
 
+#if (defined (__ia64__))
+#include <ia64intrin.h>
+
+  jboolean result;
+
+  result = __sync_bool_compare_and_swap (pword, old_value, new_value);
+
+#endif
+  
   return result ? JNI_TRUE : JNI_FALSE;
 }
 
--- ./sablevm-1.0.4/src/libsablevm/system.h     2002-08-14
23:29:54.000000000 -0600
+++ ./sablevm-1.0.4-new/src/libsablevm/system.h 2002-10-11
09:25:47.000000000 -0600
@@ -48,7 +48,7 @@
 
 */
 
-#if ((defined (__alpha__) || defined (__i386__)) && defined (__GNUC__))
+#if ((defined (__ia64__) || defined (__alpha__) || defined (__i386__))
&& defined (__GNUC__))
 
 /* "inline" is now an official keyword since the latest C standard
(1999).
    So, it is a reasonable assuption to expect a target compiler to
@@ -88,6 +88,18 @@
 #define SVM_ALIGNMENT_POWER 3  /* 2 ^^ SVM_ALIGNMENT_POWER ==
SVM_ALIGNMENT */
 #define SVM_PAGE_SIZE 8192
 
+#elif defined (__ia64__)
+
+typedef _svmt_u64 _svmt_word;
+
+#define SVM_WORD_SIZE 8         /* size in bytes */
+#define SVM_WORD_BIT_COUNT 64   /* size in bits */
+  
+/* see comments at the head of this file */
+#define SVM_ALIGNMENT 8
+#define SVM_ALIGNMENT_POWER 3   /* 2 ^^ SVM_ALIGNMENT_POWER ==
SVM_ALIGNMENT */
+#define SVM_PAGE_SIZE 16384
+
 #endif
 
 /* FFI specific types */



The helper program is this:

gadek@merulo:~/sablevm/tests$ cat ./typesizes.c 
#include <unistd.h>

int main(void) {
	int i;
	
	printf("Size of char is %i\n", sizeof(char));
	printf("Size of short is %i\n", sizeof(unsigned short));
	printf("Size of int is %i\n", sizeof(int));
	printf("Size of long int is %i\n", sizeof(long int));
	printf("Size of long long int is %i\n", sizeof(long long int));
	printf("Size of float is %i\n", sizeof(float));
	printf("Size of double is %i\n", sizeof(double));
	printf("Size of void* is %i\n", sizeof(void*));

	i = getpagesize();
	printf("Size of page is %i\n", i);

	return 0;
}