[llvm-bugs] [Bug 26731] New: lld linker script support needs to handle arithmetic expressions

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26731

            Bug ID: 26731
           Summary: lld linker script support needs to handle arithmetic
                    expressions
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: emaste at freebsd.org
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 15942
  --> https://llvm.org/bugs/attachment.cgi?id=15942&action=edit
sample test case for linker script arithmetic

Found attempting to link FreeBSD's rtld with lld. The rtld linker script has
the following expression:

  /* Adjust the address for the data segment.  We want to adjust up to
     the same address within the page on the next page up.  */
  . = ALIGN(0x1000) + (. & (0x1000 - 1));

I've attached a sample test case for this functionality.

lld currently produces the (not particularly informative) error ": expected,
but got ="

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