470071 - Cross compiling x86-64 -> x86 broken

Status: RESOLVED FIXED

(Firefox Build System :: General, defect)

Description

[Benjamin Smedberg]

I use the following script to cross compile x86-64 -> x86 on Linux:

http://hg.mozilla.org/users/bsmedberg_mozilla.com/configure-scripts/file/1e492a582e34/configure-m32

This has broken sometime recently: jsautocfg.h has host values for everything, instead of target values, in particular:

#define JS_BYTES_PER_WORD   8L

This manifests itself as a build error:
../../../src/js/src/jsatom.h:69: error: size of array ‘arg’ is negative

Which is on the line:

JS_STATIC_ASSERT(sizeof(JSAtom *) == JS_BYTES_PER_WORD);

Comment 2

[Josh Aas]

Is there an understood ideal way to fix this? If so, can someone describe what needs to happen?

Comment 3

[Robert Sayre]

I'm not sure this should block -- why?

Jim, could you take a look here?

Comment 4

[Benjamin Smedberg]

It's a fairly recent regression, and makes it difficult for me personally to do static-checking of JIT builds (since we don't have JIT on x86-64). But I think it's fairly well in hand now that the configured uintN types have landed.

Comment 5

[Nomis101]

Does this checkin http://hg.mozilla.org/mozilla-central/rev/525e42406396 interfere with this bug? I've tested to build a x86_64 build on Mac OS X after this checkin and now the contents of jsautocfg.h looks different than before.

Comment 6

[(not currently active) Ted Mielczarek]

Fixed by bug 269538. I'm now able to build js/src standalone by doing:
CC="gcc -arch x86_64" CXX="g++ -arch x86_64" AR=ar ../mozilla-central/js/src/configure --target=x86_64-apple-darwin
(not sure when that requirement for AR crept in.)

Comment 7

[Nomis101]

Hm, Bug bug 269538 is no reopened and the patch is backed out due to Windows TUnit bustage...

Comment 8

[Benjamin Smedberg]

Fixed on trunk and branch by bug 269538