changes for compiling interrupt_entropy.c and added -DVX69_TIMESTAMP_ENTROPY_SUPPORT in vxworks.krnl.mak (#55)

Co-authored-by: neelimap <neelimaps@neominds.in>
Reviewed-on: http://13.234.246.121:3000/Neominds/ossl35vx69/pulls/55
Co-authored-by: Neelima P S <neelima.ps@neominds.in>
Co-committed-by: Neelima P S <neelima.ps@neominds.in>

vxworks-6.9/target/src/openssl/OPENSSL/openssl-3.5.0/providers/implementations/rands/seeding/build.info

@@ -1,6 +1,6 @@
 $COMMON=rand_unix.c rand_win.c rand_tsc.c
 IF[{- $config{target} =~ /vxworks/i -}]
-  $COMMON=$COMMON rand_vxworks.c
+  $COMMON=$COMMON rand_vxworks.c interrupt_entropy.c
 ENDIF
 IF[{- $config{target} =~ /vms/i -}]
   $COMMON=$COMMON rand_vms.c

vxworks-6.9/target/src/openssl/OPENSSL/openssl-3.5.0/providers/implementations/rands/seeding/interrupt_entropy.c

@@ -145,17 +145,6 @@ UINT8* collectEntropyFromInterruptJitter(void) {
     UINT8 *result = NULL;
     
 
-/*neelimaps*/
-	sysTimestampEnable();
-	UINT32 tick;
-	unsigned long freq;
-    
-    /* 2. Get the timestamp value */
-    tick = sysTimestamp();
-    
-    /* 3. Print it - Note: %u for unsigned int */
-    printf("sysTimestamp = %u ticks in %s\n", tick, __func__);	
-/*neelimaps*/	
     
     /* Allocate collector structure (in task context - OK to use malloc) */
     collector = (EntropyCollector*)malloc(sizeof(EntropyCollector));

vxworks-6.9/target/src/openssl/openssl_src/vxworks.krnl.mak

@@ -30,7 +30,7 @@ VX_CFLAGS += -mcpu=cortex-a7
 endif
 endif
 
-OPENSSL_CPPFLAGS = -DOPENSSL_SYS_VXWORKS_SUPPORT -DOPENSSL_NO_THREAD_POOL
+OPENSSL_CPPFLAGS = -DOPENSSL_SYS_VXWORKS_SUPPORT -DOPENSSL_NO_THREAD_POOL -DVX69_TIMESTAMP_ENTROPY_SUPPORT
 
 OPENSSL_CONFIGURE_OPTIONS = no-shared