304 lines
9.9 KiB
Bash
Executable File
304 lines
9.9 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
# We don't regenerate it on every "make" invocation - only by hand.
|
|
# The reason is that the changes to generated code are difficult
|
|
# to visualize by looking only at this script, it helps when the commit
|
|
# also contains the diff of the generated file.
|
|
exec >hash_md5_sha_x86-64.S
|
|
|
|
# There is a way to use XMM registers (which always exist for x86-64!) for W[]
|
|
# For example, if we load W as follows:
|
|
# %xmm0: w[0x0] w[0x1] w[0x2] w[0x3]
|
|
# %xmm4: w[0x4] w[0x5] w[0x6] w[0x7]
|
|
# %xmm8: w[0x8] w[0x9] w[0xa] w[0xb]
|
|
# %xmm12: w[0xc] w[0xd] w[0xe] w[0xf]
|
|
# then the xor'ing operation to generate next W[0..3] is:
|
|
# movaps %xmm0, %xmmT2
|
|
# palignr $0x8, %xmm4, %xmmT2 # form (w[0x2],w[0x3],w[0x4],w[0x5])
|
|
# # Right-shifts xmm4:xmmT2 by 8 bytes. Writes shifted result to xmmT2. SSSE3 insn.
|
|
# movaps %xmm0, %xmmT13
|
|
# palignr $0x4,%xmm0,%xmmT13 # form (w[0xd],w[0xe],w[0xf],w[0x0])
|
|
# xmm0 = xmm0 ^ t2 ^ xmm8 ^ t13
|
|
# xmm0 = rol32(xmm0,1) # no such insn, have to use pslld+psrld+or
|
|
# and then results can be extracted for use:
|
|
# movd %xmm0, %esi # new W[0]
|
|
# pextrd $1, %xmm0, %esi # new W[1]
|
|
# # SSE4.1 insn. Can use EXTRACTPS (also SSE4.1)
|
|
# pextrd $2, %xmm0, %esi # new W[2]
|
|
# pextrd $3, %xmm0, %esi # new W[3]
|
|
# ... but this requires SSE4.1 and SSSE3, which are not universally available on x86-64.
|
|
|
|
echo \
|
|
'### Generated by hash_md5_sha_x86-64.S.sh ###
|
|
|
|
#if CONFIG_SHA1_SMALL == 0 && defined(__GNUC__) && defined(__x86_64__)
|
|
.section .text.sha1_process_block64,"ax",@progbits
|
|
.globl sha1_process_block64
|
|
.hidden sha1_process_block64
|
|
.type sha1_process_block64, @function
|
|
|
|
.balign 8 # allow decoders to fetch at least 5 first insns
|
|
sha1_process_block64:
|
|
pushq %rbp # 1 byte insn
|
|
pushq %rbx # 1 byte insn
|
|
pushq %r15 # 2 byte insn
|
|
pushq %r14 # 2 byte insn
|
|
pushq %r13 # 2 byte insn
|
|
pushq %r12 # 2 byte insn
|
|
pushq %rdi # we need ctx at the end
|
|
|
|
#Register and stack use:
|
|
# eax..edx: a..d
|
|
# ebp: e
|
|
# esi,edi: temps
|
|
# -32+4*n(%rsp),r8...r15: W[0..7,8..15]
|
|
# (TODO: actually W[0..7] are used a bit more often, put _them_ into r8..r15?)
|
|
movl $3, %eax
|
|
1:
|
|
movq (%rdi,%rax,8), %rsi
|
|
bswapq %rsi
|
|
rolq $32, %rsi
|
|
movq %rsi, -32(%rsp,%rax,8)
|
|
decl %eax
|
|
jns 1b
|
|
|
|
movl 80(%rdi), %eax # a = ctx->hash[0]
|
|
movl 84(%rdi), %ebx # b = ctx->hash[1]
|
|
movl 88(%rdi), %ecx # c = ctx->hash[2]
|
|
movl 92(%rdi), %edx # d = ctx->hash[3]
|
|
movl 96(%rdi), %ebp # e = ctx->hash[4]
|
|
|
|
movq 4*8(%rdi), %r8
|
|
movq 4*10(%rdi), %r10
|
|
bswapq %r8
|
|
bswapq %r10
|
|
movq 4*12(%rdi), %r12
|
|
movq 4*14(%rdi), %r14
|
|
bswapq %r12
|
|
bswapq %r14
|
|
movl %r8d, %r9d
|
|
shrq $32, %r8
|
|
movl %r10d, %r11d
|
|
shrq $32, %r10
|
|
movl %r12d, %r13d
|
|
shrq $32, %r12
|
|
movl %r14d, %r15d
|
|
shrq $32, %r14
|
|
'
|
|
W32() {
|
|
test "$1" || exit 1
|
|
test "$1" -lt 0 && exit 1
|
|
test "$1" -gt 15 && exit 1
|
|
test "$1" -lt 8 && echo "-32+4*$1(%rsp)"
|
|
test "$1" -ge 8 && echo "%r${1}d"
|
|
}
|
|
|
|
# It's possible to interleave insns in rounds to mostly eliminate
|
|
# dependency chains, but this likely to only help old Pentium-based
|
|
# CPUs (ones without OOO, which can only simultaneously execute a pair
|
|
# of _adjacent_ insns).
|
|
# Testing on old-ish Silvermont CPU (which has OOO window of only
|
|
# about ~8 insns) shows very small (~1%) speedup.
|
|
|
|
RD1A() {
|
|
local a=$1;local b=$2;local c=$3;local d=$4;local e=$5
|
|
local n=$(($6))
|
|
local n0=$(((n+0) & 15))
|
|
echo "
|
|
# $n
|
|
";test $n0 = 0 && echo "
|
|
# W[0], already in %esi
|
|
";test $n0 != 0 && test $n0 -lt 8 && echo "
|
|
movl `W32 $n0`, %esi # W[n]
|
|
";test $n0 -ge 8 && echo "
|
|
# W[n], in %r$n0
|
|
";echo "
|
|
movl %e$c, %edi # c
|
|
xorl %e$d, %edi # ^d
|
|
andl %e$b, %edi # &b
|
|
xorl %e$d, %edi # (((c ^ d) & b) ^ d)
|
|
";test $n0 -lt 8 && echo "
|
|
leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n]
|
|
";test $n0 -ge 8 && echo "
|
|
leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n]
|
|
";echo "
|
|
addl %edi, %e$e # e += (((c ^ d) & b) ^ d)
|
|
movl %e$a, %esi #
|
|
roll \$5, %esi # rotl32(a,5)
|
|
addl %esi, %e$e # e += rotl32(a,5)
|
|
rorl \$2, %e$b # b = rotl32(b,30)
|
|
"
|
|
}
|
|
RD1B() {
|
|
local a=$1;local b=$2;local c=$3;local d=$4;local e=$5
|
|
local n=$(($6))
|
|
local n13=$(((n+13) & 15))
|
|
local n8=$(((n+8) & 15))
|
|
local n2=$(((n+2) & 15))
|
|
local n0=$(((n+0) & 15))
|
|
echo "
|
|
# $n
|
|
";test $n0 -lt 8 && echo "
|
|
movl `W32 $n13`, %esi # W[(n+13) & 15]
|
|
xorl `W32 $n8`, %esi # ^W[(n+8) & 15]
|
|
xorl `W32 $n2`, %esi # ^W[(n+2) & 15]
|
|
xorl `W32 $n0`, %esi # ^W[n & 15]
|
|
roll %esi #
|
|
movl %esi, `W32 $n0` # store to W[n & 15]
|
|
";test $n0 -ge 8 && echo "
|
|
xorl `W32 $n13`, `W32 $n0` # W[n & 15] ^= W[(n+13) & 15]
|
|
xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15]
|
|
xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15]
|
|
roll `W32 $n0` #
|
|
";echo "
|
|
movl %e$c, %edi # c
|
|
xorl %e$d, %edi # ^d
|
|
andl %e$b, %edi # &b
|
|
xorl %e$d, %edi # (((c ^ d) & b) ^ d)
|
|
";test $n0 -lt 8 && echo "
|
|
leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15]
|
|
";test $n0 -ge 8 && echo "
|
|
leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n & 15]
|
|
";echo "
|
|
addl %edi, %e$e # e += (((c ^ d) & b) ^ d)
|
|
movl %e$a, %esi #
|
|
roll \$5, %esi # rotl32(a,5)
|
|
addl %esi, %e$e # e += rotl32(a,5)
|
|
rorl \$2, %e$b # b = rotl32(b,30)
|
|
"
|
|
}
|
|
{
|
|
RCONST=0x5A827999
|
|
RD1A ax bx cx dx bp 0; RD1A bp ax bx cx dx 1; RD1A dx bp ax bx cx 2; RD1A cx dx bp ax bx 3; RD1A bx cx dx bp ax 4
|
|
RD1A ax bx cx dx bp 5; RD1A bp ax bx cx dx 6; RD1A dx bp ax bx cx 7; RD1A cx dx bp ax bx 8; RD1A bx cx dx bp ax 9
|
|
RD1A ax bx cx dx bp 10; RD1A bp ax bx cx dx 11; RD1A dx bp ax bx cx 12; RD1A cx dx bp ax bx 13; RD1A bx cx dx bp ax 14
|
|
RD1A ax bx cx dx bp 15; RD1B bp ax bx cx dx 16; RD1B dx bp ax bx cx 17; RD1B cx dx bp ax bx 18; RD1B bx cx dx bp ax 19
|
|
} | grep -v '^$'
|
|
|
|
RD2() {
|
|
local a=$1;local b=$2;local c=$3;local d=$4;local e=$5
|
|
local n=$(($6))
|
|
local n13=$(((n+13) & 15))
|
|
local n8=$(((n+8) & 15))
|
|
local n2=$(((n+2) & 15))
|
|
local n0=$(((n+0) & 15))
|
|
echo "
|
|
# $n
|
|
";test $n0 -lt 8 && echo "
|
|
movl `W32 $n13`, %esi # W[(n+13) & 15]
|
|
xorl `W32 $n8`, %esi # ^W[(n+8) & 15]
|
|
xorl `W32 $n2`, %esi # ^W[(n+2) & 15]
|
|
xorl `W32 $n0`, %esi # ^W[n & 15]
|
|
roll %esi #
|
|
movl %esi, `W32 $n0` # store to W[n & 15]
|
|
";test $n0 -ge 8 && echo "
|
|
xorl `W32 $n13`, `W32 $n0` # W[n & 15] ^= W[(n+13) & 15]
|
|
xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15]
|
|
xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15]
|
|
roll `W32 $n0` #
|
|
";echo "
|
|
movl %e$c, %edi # c
|
|
xorl %e$d, %edi # ^d
|
|
xorl %e$b, %edi # ^b
|
|
";test $n0 -lt 8 && echo "
|
|
leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15]
|
|
";test $n0 -ge 8 && echo "
|
|
leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n & 15]
|
|
";echo "
|
|
addl %edi, %e$e # e += (c ^ d ^ b)
|
|
movl %e$a, %esi #
|
|
roll \$5, %esi # rotl32(a,5)
|
|
addl %esi, %e$e # e += rotl32(a,5)
|
|
rorl \$2, %e$b # b = rotl32(b,30)
|
|
"
|
|
}
|
|
{
|
|
RCONST=0x6ED9EBA1
|
|
RD2 ax bx cx dx bp 20; RD2 bp ax bx cx dx 21; RD2 dx bp ax bx cx 22; RD2 cx dx bp ax bx 23; RD2 bx cx dx bp ax 24
|
|
RD2 ax bx cx dx bp 25; RD2 bp ax bx cx dx 26; RD2 dx bp ax bx cx 27; RD2 cx dx bp ax bx 28; RD2 bx cx dx bp ax 29
|
|
RD2 ax bx cx dx bp 30; RD2 bp ax bx cx dx 31; RD2 dx bp ax bx cx 32; RD2 cx dx bp ax bx 33; RD2 bx cx dx bp ax 34
|
|
RD2 ax bx cx dx bp 35; RD2 bp ax bx cx dx 36; RD2 dx bp ax bx cx 37; RD2 cx dx bp ax bx 38; RD2 bx cx dx bp ax 39
|
|
} | grep -v '^$'
|
|
|
|
RD3() {
|
|
local a=$1;local b=$2;local c=$3;local d=$4;local e=$5
|
|
local n=$(($6))
|
|
local n13=$(((n+13) & 15))
|
|
local n8=$(((n+8) & 15))
|
|
local n2=$(((n+2) & 15))
|
|
local n0=$(((n+0) & 15))
|
|
echo "
|
|
# $n
|
|
movl %e$b, %edi # di: b
|
|
movl %e$b, %esi # si: b
|
|
orl %e$c, %edi # di: b | c
|
|
andl %e$c, %esi # si: b & c
|
|
andl %e$d, %edi # di: (b | c) & d
|
|
orl %esi, %edi # ((b | c) & d) | (b & c)
|
|
";test $n0 -lt 8 && echo "
|
|
movl `W32 $n13`, %esi # W[(n+13) & 15]
|
|
xorl `W32 $n8`, %esi # ^W[(n+8) & 15]
|
|
xorl `W32 $n2`, %esi # ^W[(n+2) & 15]
|
|
xorl `W32 $n0`, %esi # ^W[n & 15]
|
|
roll %esi #
|
|
movl %esi, `W32 $n0` # store to W[n & 15]
|
|
";test $n0 -ge 8 && echo "
|
|
xorl `W32 $n13`, `W32 $n0` # W[n & 15] ^= W[(n+13) & 15]
|
|
xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15]
|
|
xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15]
|
|
roll `W32 $n0` #
|
|
";echo "
|
|
addl %edi, %e$e # += ((b | c) & d) | (b & c)
|
|
";test $n0 -lt 8 && echo "
|
|
leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15]
|
|
";test $n0 -ge 8 && echo "
|
|
leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n & 15]
|
|
";echo "
|
|
movl %e$a, %esi #
|
|
roll \$5, %esi # rotl32(a,5)
|
|
addl %esi, %e$e # e += rotl32(a,5)
|
|
rorl \$2, %e$b # b = rotl32(b,30)
|
|
"
|
|
}
|
|
{
|
|
#RCONST=0x8F1BBCDC "out of range for signed 32bit displacement"
|
|
RCONST=-0x70E44324
|
|
RD3 ax bx cx dx bp 40; RD3 bp ax bx cx dx 41; RD3 dx bp ax bx cx 42; RD3 cx dx bp ax bx 43; RD3 bx cx dx bp ax 44
|
|
RD3 ax bx cx dx bp 45; RD3 bp ax bx cx dx 46; RD3 dx bp ax bx cx 47; RD3 cx dx bp ax bx 48; RD3 bx cx dx bp ax 49
|
|
RD3 ax bx cx dx bp 50; RD3 bp ax bx cx dx 51; RD3 dx bp ax bx cx 52; RD3 cx dx bp ax bx 53; RD3 bx cx dx bp ax 54
|
|
RD3 ax bx cx dx bp 55; RD3 bp ax bx cx dx 56; RD3 dx bp ax bx cx 57; RD3 cx dx bp ax bx 58; RD3 bx cx dx bp ax 59
|
|
} | grep -v '^$'
|
|
|
|
# Round 4 has the same logic as round 2, only n and RCONST are different
|
|
{
|
|
#RCONST=0xCA62C1D6 "out of range for signed 32bit displacement"
|
|
RCONST=-0x359D3E2A
|
|
RD2 ax bx cx dx bp 60; RD2 bp ax bx cx dx 61; RD2 dx bp ax bx cx 62; RD2 cx dx bp ax bx 63; RD2 bx cx dx bp ax 64
|
|
RD2 ax bx cx dx bp 65; RD2 bp ax bx cx dx 66; RD2 dx bp ax bx cx 67; RD2 cx dx bp ax bx 68; RD2 bx cx dx bp ax 69
|
|
RD2 ax bx cx dx bp 70; RD2 bp ax bx cx dx 71; RD2 dx bp ax bx cx 72; RD2 cx dx bp ax bx 73; RD2 bx cx dx bp ax 74
|
|
RD2 ax bx cx dx bp 75; RD2 bp ax bx cx dx 76; RD2 dx bp ax bx cx 77; RD2 cx dx bp ax bx 78; RD2 bx cx dx bp ax 79
|
|
# Note: new W[n&15] values generated in last 3 iterations
|
|
# (W[13,14,15]) are unused after each of these iterations.
|
|
# Since we use r8..r15 for W[8..15], this does not matter.
|
|
# If we switch to e.g. using r8..r15 for W[0..7], then saving of W[13,14,15]
|
|
# (the "movl %esi, `W32 $n0`" insn) is a dead store and can be removed.
|
|
} | grep -v '^$'
|
|
|
|
echo "
|
|
popq %rdi #
|
|
popq %r12 #
|
|
addl %eax, 80(%rdi) # ctx->hash[0] += a
|
|
popq %r13 #
|
|
addl %ebx, 84(%rdi) # ctx->hash[1] += b
|
|
popq %r14 #
|
|
addl %ecx, 88(%rdi) # ctx->hash[2] += c
|
|
popq %r15 #
|
|
addl %edx, 92(%rdi) # ctx->hash[3] += d
|
|
popq %rbx #
|
|
addl %ebp, 96(%rdi) # ctx->hash[4] += e
|
|
popq %rbp #
|
|
|
|
ret
|
|
.size sha1_process_block64, .-sha1_process_block64
|
|
#endif"
|