[PATCH] PR ld/24709 [arm] linker crash and assertion failure with CMSE

[Christophe Lyon <christophe dot lyon at linaro dot org>]

Hi,

As discussed in the PR, we do not support the case where CMSE stubs
are inserted too far from their destination. This would require an
intermediate long-branch stub, which is tricky in this context.

Instead of crashing, this patch emit an error message and exits.

I will send a GCC testsuite patch separately to avoid placing the CMSE
stubs too far.

OK?

Christophe

2019-07-02  Christophe Lyon  <christophe.lyon@linaro.org>

        * bfd/elf32-arm.c (CMSE_STUB_NAME): New define.
        (elf32_arm_get_stub_entry): Do not try to emit long-branch stubs
        for CMSE stubs.
        (arm_dedicated_stub_output_section_name): Use CMSE_STUB_NAME.

Attachment: ld-pr24709.patch.txt
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