[llvm-bugs] [Bug 30891] New: lld sets x86_64 MAXPAGESIZE to 0x1000, not 0x200000 as ld.bfd does

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30891

            Bug ID: 30891
           Summary: lld sets x86_64 MAXPAGESIZE to 0x1000, not 0x200000 as
                    ld.bfd does
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: ELF
          Assignee: unassignedbugs at nondot.org
          Reporter: emaste at freebsd.org
                CC: llvm-bugs at lists.llvm.org
            Blocks: 23214
    Classification: Unclassified

FreeBSD's amd64 (x86_64) kernel linker script uses MAXPAGESIZE to set the
physical and virtual addresses for the kernel.

See
https://svnweb.freebsd.org/base/head/sys/conf/ldscript.amd64?annotate=303442#l9

After r282560 (https://reviews.llvm.org/rL282560) lld sets MAXPAGESIZE to
0x1000 not 0x200000. The FreeBSD kernel then occupies the physical memory under
640K and the kernel panics on boot when a device that requires a low memory
allocation fails.

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