[Bug ld/16411] New: Cannot link when source files compiled with -msdata=eabi switch

[sguido at micromotive dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=16411

            Bug ID: 16411
           Summary: Cannot link when source files compiled with
                    -msdata=eabi switch
           Product: binutils
           Version: 2.24
            Status: NEW
          Severity: critical
          Priority: P3
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: sguido at micromotive dot net
              Host: Mac OSX Mavericks (10.9)
            Target: PowerPC EABI
             Build: 2.24

I have been using v2.16 and v4.2.1 gcc for some time as a powerpc-eabi cross
compiler running on a Mac OSX host successfully. I am trying to update to the
latest version of gcc (v4.8.2) and binutils (v2.24). When I compile the source
code with v4.8.2 gcc using the -msdata=eabi, the source files compile fine, but
in the link stage, I get many errors as follows:

OsInterrupt.c:61:(.text+0x88c): unresolvable R_PPC_EMB_SDA21 relocation against
symbol `OsInterruptNesting'
OsInterrupt.c:61:(.text+0x88c): relocation truncated to fit: R_PPC_EMB_SDA21
against symbol `OsInterruptNesting' defined in .sbss section in rtos.lib(os.o)


The assembly code that is generated is correct as follows:

    lbz %r9,address@hidden(%r0)     # OsInterruptNesting,
    addi %r3,%r9,1     # tmp136, OsInterruptNesting,
    stb %r3,address@hidden(%r0)     # OsInterruptNesting, tmp136

In addition, if I compile with v4.8.2 and link with v2.16 linker, it does link
fine. Am I doing something wrong?

Please help as I am stuck and cannot continue.

Thank you!

Sam Guido

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