RFR: 8078521: AARCH64: Add AArch64 SA support (original) (raw)

Dean Long dean.long at oracle.com
Thu Apr 23 20:23:52 UTC 2015

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On 4/23/2015 9:22 AM, Andrew Haley wrote:

http://cr.openjdk.java.net/~aph/8078521/

Andrew.

Unfortunately, this will cause conflicts with our closed port. I don't know if we should try to address those issues here or in a followup bug. We would need something like the following (still untested) to allow us to map to a different cpu name:

diff -r d11fb4e8a82e agent/src/share/classes/sun/jvm/hotspot/utilities/AltPlatformInfo.java

a/agent/src/share/classes/sun/jvm/hotspot/utilities/AltPlatformInfo.java Tue Mar 24 10:25:09 2015 +0100 +++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/AltPlatformInfo.java Thu Apr 23 16:17:00 2015 -0400 @@ -27,5 +27,5 @@ public interface AltPlatformInfo { // Additional cpu types can be tested via this interface

public boolean knownCPU(String cpu); -} \ No newline at end of file

public String knownCPU(String cpu); +} diff -r d11fb4e8a82e agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java

a/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java Tue Mar 24 10:25:09 2015 +0100 +++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java Thu Apr 23 16:17:00 2015 -0400 @@ -57,6 +57,14 @@ is not recognized as supported, an exception is thrown instead. */ public static String getCPU() throws UnsupportedPlatformException { String cpu = System.getProperty("os.arch");

try {
```
 Class pic =
```

Class.forName("sun.jvm.hotspot.utilities.PlatformInfoClosed");

 AltPlatformInfo api = (AltPlatformInfo)pic.newInstance();

```
 String newCPU = api.knownCPU(cpu);
```
```
 if (newCPU != null) {
```
```
   return cpu;
```
```
 }
```
} catch (Exception e) {} if (cpu.equals("i386") || cpu.equals("x86")) { return "x86"; } else if (cpu.equals("sparc") || cpu.equals("sparcv9")) { @@ -64,13 +72,6 @@ } else if (cpu.equals("ia64") || cpu.equals("amd64") || cpu.equals("x86_64") || cpu.equals("ppc64") || cpu.equals("aarch64")) { return cpu; } else {

```
 try {
```
```
   Class pic =
```

Class.forName("sun.jvm.hotspot.utilities.PlatformInfoClosed");

   AltPlatformInfo api = (AltPlatformInfo)pic.newInstance();

```
   if (api.knownCPU(cpu)) {
```
```
     return cpu;
```
```
   }
```

 } catch (Exception e) {}
  throw new UnsupportedPlatformException("CPU type " + cpu + " not

yet supported"); } }

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