[Bug ld/22119] New: mipsel-sde-elf-ld: linker should inform user when .reginfo size is wrong

[vlad at ivanov dot email]

https://sourceware.org/bugzilla/show_bug.cgi?id=22119

            Bug ID: 22119
           Summary: mipsel-sde-elf-ld: linker should inform user when
                    .reginfo size is wrong
           Product: binutils
           Version: 2.29
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: vlad at ivanov dot email
  Target Milestone: ---

When .reginfo section size is zero, the following assert fails:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=bfd/elfxx-mips.c;h=2eb3dd3363cc03755b664f4b436e4e69be016b69;hb=dd9a28c0966d13924fbd1096a724ae334954d830#l14430

Apparently, this can happen when there is no explicit mention of 
.reginfo in the linker script. I have  encountered this assert 
while building a program for mips32r5 target with GCC 7.2.0.
After .reginfo was added to the linker script, I was able to 
compile the program normally.

I'm not sure why this assert wasn't triggered before (with GCC 6.4),
but I think this error could yield a more readable message.

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