951758 - Cross Linux->OSX debug build needs dsymutil for ICU

Status: RESOLVED DUPLICATE of bug 1239083

(Firefox Build System :: General, defect)

Description

[Michael Shal [:mshal]]

As of bug 937901, we support building ICU when cross compiling from Linux->OSX. However, the '-g' flags are explicitly removed with --enable-debug, since ICU's configure tries to run dsymutil (as shown in obj/js/src/intl/icu/target/config.log)

If we get a suitable dsymutil working in Linux for crashreporter, we should re-enable -g for ICU cross compiles.

Comment 1

[(not currently active) Ted Mielczarek]

What's it doing with dsymutil, any idea?

Comment 2

[Michael Shal [:mshal]]

Attachment: config.log

I'm not really sure - it looks like clang is trying to execute it, but can't find it since it doesn't exist on the host. Just grepping through ICU itself I don't see any mention of dsymutil, so I don't know why adding --enable-debug would only cause the ICU configure to fail. I've attached ICU target config.log in case you are curious.

Comment 3

[(not currently active) Ted Mielczarek]

Comments in the clang source indicate that it runs dsymutil when you compile and link in one command line (like `clang -o foo foo.cpp`) because otherwise the debug info would be lost in the temp object file:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Driver.cpp?annotate=130981&pathrev=131084#l662

Comment 4

[(not currently active) Ted Mielczarek]

I've got a working dsymutil as of bug 1205242, but it's named `llvm-dsymutil`, so I'm not sure this will fix the problem immediately. It should be possible to make it work, though.