[Bug 89214] New: intel-gpu-tools does not properly cross-compile when using assembler/intel-gen4asm

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89214

            Bug ID: 89214
           Summary: intel-gpu-tools does not properly cross-compile when
                    using assembler/intel-gen4asm
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: vapier at gentoo.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org,
                    vedang.patel at intel.com

the assembler/Makefile will build & execute intel-gen4asm using the target
compiler.  that means you can't cross-compile it as there's no guarantee the
target is producing code that is executable on the current build host.

i could post a pathological example (building x86 code on an arm system), but a
more realistic one is where you have a kernel running x86_64 and it only
supports x86_64 (so 64-bit, not x86/32-bit or x32).  when it attempts to
execute the assembler, it fails with:
intel-gpu-tools-1.7: make[3]: ../../assembler/intel-gen4asm: Command not found

i guess assembler/Makefile.am needs some hacking so it uses
BUILD_CC/BUILD_CFLAGS/etc... instead of the default CC/CFLAGS/etc...

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