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$ diff --unified=20 u-boot.orig-v2016.09-rc1.disasm u-boot.revert-1a83fb4.disasm | |
--- u-boot.orig-v2016.09-rc1.disasm 2016-07-29 17:28:31.000000000 +0300 | |
+++ u-boot.revert-1a83fb4.disasm 2016-07-29 17:28:41.000000000 +0300 | |
@@ -1,22 +1,22 @@ | |
-u-boot.orig: file format elf64-littleaarch64 | |
+u-boot: file format elf64-littleaarch64 | |
Disassembly of section .text: |
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From aaa3428877546e7dff686e4e526f886becc59323 Mon Sep 17 00:00:00 2001 | |
From: Siarhei Siamashka <siarhei.siamashka@gmail.com> | |
Date: Mon, 25 Jul 2016 19:43:58 +0300 | |
Subject: [PATCH] musl nothreshold malloc | |
--- | |
src/malloc/malloc.c | 2 +- | |
1 file changed, 1 insertion(+), 1 deletion(-) | |
diff --git a/src/malloc/malloc.c b/src/malloc/malloc.c |
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----------------------------------------------------------------------- | |
49f0: e3a00001 mov r0, #1 | |
49f4: e5cb0028 strb r0, [fp, #40] ; 0x28 | |
----------------------------------------------------------------------- | |
4e5c: e3a00801 mov r0, #65536 ; 0x10000 | |
4e60: e58d0000 str r0, [sp] | |
[...] |
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sunxi-tools 9e7f3a3a93290654c6a30a157484c46d37686d20 | |
$ arm-linux-gnueabihf-gcc -v | |
Using built-in specs. | |
COLLECT_GCC=/usr/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-bin/4.7.4/arm-linux-gnueabihf-gcc | |
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/arm-linux-gnueabihf/4.7.4/lto-wrapper | |
Target: arm-linux-gnueabihf | |
Configured with: /var/tmp/portage/cross-arm-linux-gnueabihf/gcc-4.7.4/work/gcc-4.7.4/configure --host=x86_64-pc-linux-gnu --target=arm-linux-gnueabihf --build=x86_64-pc-linux-gnu --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/arm-linux-gnueabihf/gcc-bin/4.7.4 --includedir=/usr/lib/gcc/arm-linux-gnueabihf/4.7.4/include --datadir=/usr/share/gcc-data/arm-linux-gnueabihf/4.7.4 --mandir=/usr/share/gcc-data/arm-linux-gnueabihf/4.7.4/man --infodir=/usr/share/gcc-data/arm-linux-gnueabihf/4.7.4/info --with-gxx-include-dir=/usr/lib/gcc/arm-linux-gnueabihf/4.7.4/include/g++-v4 --with-python-dir=/share/gcc-data/arm-linux-gnueabihf/4.7.4/python --enable-languages=c,c++ --enable-obsolete --enable-secureplt --disable-werror - |
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#!/usr/bin/env ruby | |
data = [] | |
File.open(ARGV[0]).each_byte {|b| data.push(b) } | |
(0..(data.size - 1)).step(4) {|i| | |
x0 = data[i + 0] | |
x1 = data[i + 1] | |
x2 = data[i + 2] | |
x3 = data[i + 3] |
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$ cat coin_jam.cr | |
n = 16 | |
j = 50 | |
max_bound = (2**n - 1).to_u64 | |
min_bound = (max_bound - 2**(n-1) + 2).to_u64 | |
puts "Case #1:" | |
cur = min_bound |
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/* | |
* Usage: gcc -DCPU_CLOCK_FREQUENCY=1200000000 test-arm-neon-mix.S && time ./a.out | |
* gcc -DCPU_CLOCK_FREQUENCY=1200000000 -DINTERLEAVED test-arm-neon-mix.S && time ./a.out | |
* | |
* | -DINTERLEAVED | separate ARM and NEON code chunks | |
* ------------+---------------+----------------------------------- | |
* Cortex-A15 | ~6.7 cycles | ~5.7 cycles (!) | |
* ------------+---------------+----------------------------------- | |
* Cortex-A8 | 7.0 cycles | 7.0 cycles | |
* ------------+---------------+----------------------------------- |
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diff --git a/util.c b/util.c | |
index 52e88b4..ec7c6ff 100644 | |
--- a/util.c | |
+++ b/util.c | |
@@ -59,26 +59,30 @@ void aligned_block_copy_backwards(int64_t * __restrict dst, | |
int size) | |
{ | |
int64_t t1, t2, t3, t4; | |
- src += size / 8 - 1; | |
- dst += size / 8 - 1; |
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int main() | |
{ | |
volatile double a = 1.0; | |
volatile double b = 1.0; | |
for (;;) { | |
a /= b; | |
} | |
return 0; | |
} |
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<6>[ 0.000000] Initializing cgroup subsys cpuset | |
<6>[ 0.000000] Initializing cgroup subsys cpu | |
<6>[ 0.000000] Initializing cgroup subsys cpuacct | |
<5>[ 0.000000] Linux version 3.10.93 (jenkins@pallas.corp.jide.com) (gcc version 4.9.3 20150113 (prerelease) (Linaro GCC 4.9-2015.01-3) ) #1 SMP PREEMPT Thu Jan 14 13:49:55 CST 2016 | |
<4>[ 0.000000] CPU: AArch64 Processor [410fd034] revision 4 | |
<6>[ 0.000000] Machine: sun50iw1p1 | |
<6>[ 0.000000] bootconsole [earlycon0] enabled | |
<6>[ 0.000000] cma: CMA: reserved 300 MiB at ad400000 | |
<7>[ 0.000000] On node 0 totalpages: 520192 | |
<7>[ 0.000000] DMA zone: 7112 pages used for memmap |