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Otherwise these constants will be merged wrong or excluded, and we'll
wind up with wrong calculations. While bfd (the normal kernel linker)
doesn't seem to mind, recent versions of gold do bad things.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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We're referencing these constants as one contiguous blob, so if there's
any merging that goes on with other constants elsewhere (such as the
kernel's current poly1305 implementation that we hope to replace), then
these will be reordered and have the wrong values.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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It's good to have SPDX identifiers in all files as the Linux kernel
developers are working to add these identifiers to all files.
Update all files with the correct SPDX license identifier based on the license
text of the project or based on the license in the file itself. The SPDX
identifier is a legally binding shorthand, which can be used instead of the
full boiler plate text.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Modified-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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OpenSSL's Poly1305 kernels use %rbp as a scratch register. However, the kernel
expects rbp to be a valid frame pointer at any given time in order to do
proper unwinding. Thus we need to alter the code in order to preserve it.
The most straightforward manner in which this was accomplished was by replacing
$d3 in poly1305-x86_64.pl -- formerly %r10 -- by %rdi, and replace %rbp by %r10.
Because %rdi, a pointer to the context structure, does not change and is not used
by poly1305_iteration, it is safe to use it here, and the overhead of saving and
restoring it should be minimal.
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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ARMv4-ARMv8, with NEON for ARMv7 and ARMv8.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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x86_64 only at the moment. SSSE3, AVX, AVX2, AVX512.
Signed-off-by: Samuel Neves <sneves@dei.uc.pt>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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