[LLVMbugs] [Bug 18292] New: Incorrect intptr_t type on aarch64 (cross compiling from x86_64)

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Fri Dec 20 09:02:01 PST 2013


            Bug ID: 18292
           Summary: Incorrect intptr_t type on aarch64 (cross compiling
                    from x86_64)
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: simon.hosie at arm.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 11758
  --> http://llvm.org/bugs/attachment.cgi?id=11758&action=edit

The type eventually comes from system /usr/include/stdint.h, but the header
that led me there belongs to Clang, so I _assume_ this is a Clang issue, and
may be a general problem with cross-compilation.

intptr_t and uintptr_t come out as 32-bit types when cross-compiling for
aarch64, on my system.

intptr.c attached.  Command line:

 % clang --target=aarch64-linux-gnu -c intptr.c


intptr.c:9:9: warning: cast to 'void *' from smaller integer type 'int'
    y = (void *)((intptr_t)&x ^ 0x5555aaaa);
1 warning generated.

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