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author | David S. Miller <davem@davemloft.net> | 2018-10-25 10:36:19 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2018-10-25 10:36:19 -0700 |
commit | caf539cd1087f7c36b9c4df271575e9aee49fde5 (patch) | |
tree | ead06508c7fc91d86b0c0d302abd43110f32a056 /arch/sparc/kernel/rtrap_64.S | |
parent | 44adbac8f7217040be97928cd19998259d9d4418 (diff) | |
download | linux-caf539cd1087f7c36b9c4df271575e9aee49fde5.tar.gz |
sparc: Fix VDSO build with older binutils.
Older versions of bintutils do not allow symbol math across different segments on sparc: ==================== Assembler messages: 99: Error: operation combines symbols in different segments ==================== This is controlled by whether or not DIFF_EXPR_OK is defined in gas/config/tc-*.h and for sparc this was not the case until mid-2017. So we have to patch between %stick and %tick another way. Do what powerpc does and emit two versions of the relevant functions, one using %tick and one using %stick, and patch the symbols in the dynamic symbol table. Fixes: 2f6c9bf31a0b ("sparc: Improve VDSO instruction patching.") Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/rtrap_64.S')
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