Hello list, my 1st post.
I've had a hard time building Nettle using MSVC/clang-cl
on Win-10. My aim is simply to use it for GnuTLS.
Running 'nettle-benchmark.exe' gave me a crash in some
.asm-code I failed to understand. It's signature is:
_nettle_sha256_compress_n (uint32_t *state, const uint32_t *k,
size_t blocks, const uint8_t *input);
But I noted it's .asm-code says 'W64_ENTRY(3, 0)'
Why not 'W64_ENTRY(4, 0)' when there are 4 arguments?
I admin 'm4' is alien to me, but changing it into:
--- a/x86_64/sha256-compress-n.asm 2023-02-13 07:38:45
+++ b/x86_64/sha256-compress-n.asm 2023-02-14 14:04:26
@@ -134,7 +134,7 @@
ALIGN(16)
PROLOGUE(_nettle_sha256_compress_n)
- W64_ENTRY(3, 0)
+ W64_ENTRY(4, 0)
test BLOCKS, BLOCKS
jz .Lend
@@ -228,6 +228,6 @@
add $120, %rsp
.Lend:
mov INPUT, %rax
- W64_EXIT(3, 0)
+ W64_EXIT(4, 0)
ret
EPILOGUE(_nettle_sha256_compress_n)
-------
fixed the crash.
But in other places I see 'W64_ENTRY(x..)' is
used for functions with 'y' arguments (y != x).
Somebody please explain this.
PS. I used a home-brewed GNU-makefile modelled
after a Cygwin build. Plus I used only Mini-GMP,
but .asm + AES asm-code.
--
--gv
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