"make verilog" throws java memory error

Archive Freedom E300
1

Hi all, I just pulled the freedom github repo and ran “make -f Makefile.e300artydevkit verilog”. It chugs along for a bit and now won’t progress past a java memory error:

[info] 'compiler-interface' not yet compiled for Scala 2.11.7. Compiling...
sbt appears to be exiting abnormally.
  The log file for this session is at /tmp/sbt8497818078338583763.log
java.lang.OutOfMemoryError: PermGen space
Error during sbt execution: java.lang.OutOfMemoryError: PermGen space

I don’t think my system is actually out of memory; top shows about 2.5GB free right now. Is there a specific version of java I need to run this makefile?

2

I’m not an expert at the JVM, but you could attempt to increase the amount of Perm space allocated. Try increasing the value of MaxPermSize in this line of the Makefile: https://github.com/sifive/freedom/blob/f4375c22662f82b1b4f94e88b1aba6998b1f34ba/common.mk#L23

3

Actually, I read your error message more carefully and now see that this is happening when you run sbt, so modify this line of the Makefile to add in the same memory-related flags from the FIRRTL command:

-Xmx2G -Xss8M -XX:MaxPermSize=256M
4

OK, that gets me past the first error! Now I’ve got more java hiccups. Java is really not my forte so I don’t even know where to start to fix these, but am I missing some files?

[info] Compiling 55 Scala sources and 4 Java sources to /home/aa/grad/db/freedom/rocket-chip/firrtl/target/scala-2.11/classes...
[error] /home/aa/grad/db/freedom/rocket-chip/firrtl/src/main/scala/firrtl/Emitter.scala:31: object file is not a member of package java.nio
[error] import java.nio.file.{Paths, Files}
[error]                 ^
[error] /home/aa/grad/db/freedom/rocket-chip/firrtl/src/main/scala/firrtl/StringLit.scala:32: object StandardCharsets is not a member of package java.nio.charset
[error] import java.nio.charset.StandardCharsets.UTF_8
[error]                         ^
[error] /home/aa/grad/db/freedom/rocket-chip/firrtl/src/main/scala/firrtl/StringLit.scala:50: not found: value UTF_8
[error]             if (c >= 0x20 && c <= 0x7e) new String(Array(c), UTF_8)
[error]                                                              ^
[error] /home/aa/grad/db/freedom/rocket-chip/firrtl/src/main/scala/firrtl/StringLit.scala:94: object StandardCharsets is not a member of package java.nio.charset
[error]     val byteArray = raw.getBytes(java.nio.charset.StandardCharsets.UTF_8)
[error]                                                   ^
[error] four errors found
[error] (compile:compileIncremental) Compilation failed
[error] Total time: 26 s, completed Feb 8, 2017 2:49:47 PM
1 Like
5

What version of Java are you running? I believe java.nio.file was introduced in Java 7.

6

That was the problem – my path was pointed to java 1.6. Switched to 1.8 and everything works now. Thanks!

7

Thanks Richard,

I have tried your advice, but failed ! can you tell another?

8

Thank you,

I met that trouble also,if you solved it, please tell me ! Thanks very much~

9

Hi Pengnainqi, I assume you also posted this question in GitHub shortly afterwards: https://github.com/sifive/freedom/issues/28

Let me know if my response doesn’t solve your problem.