Start with a simple program:
#include
Other sys calls are not read, mainly write and read. in Linux, the two are from the glibc library. Compile this program to check the function call status.
Pai_^ [/home/crazybaby/] # GCC main. c ^_^ [/home/crazybaby/] # valgrind -- tool = callgrind. out-> C-c ^_^ [/home/crazybaby/] # callgrind_annotate callgrind. out.9150.
After more than a week, UbuntuEdge received only $7.42 million in funding on Indiegogo, far from its target of funding $32 million a month, even if funding continues at the current rate, there will still be millions of dollars in the end of a month, not to mention the more difficult it will be to raise funds later. The UbuntuEdge mobile fundraising plan raised $3.4 million on the first day of its release, setting the highest record for
, we also pass in 0!
Let's finish the first part of this task (output hello from crazybaby). Although it is very simple, step by step. After all, the mind stack is limited!
The key code is as follows:
25 void GoForIt(){ 26 Print("Hello from Crazybaby\n"); 27 }
52 Start_Kernel_Thread(GoForIt, 0, PRIORITY_NORMAL, false); 53 54 // TODO("Start a kernel thread to echo pressed keys and print count
As a Ubuntu/Android dual-start smartphone, the UbuntuEdge project started off on Indiegogo. If the fund-raising succeeds, the 4.5 inch sapphire screen @ 1280x720 resolution (300PPI) mobile phone will also bring massive 4 GB memory and GB internal storage. Last month, we saw a very short rotating video on YouTube, but after seeing the published photo, we had to doubt mdash; mdas
As a dual-boot Ubuntu/Android smartphone, the Ubuntu Edge project starte
About a month ago, in July 23 this year, the famous Linux publisher Canonical announced on the crowdfunding website Indiegogo that it had launched a fund-raising program of up to $32 million for the super mobile phone UbuntuEdge. The fund-raising plan stipulates that, within 30 days from that time, the mobile phone will be produced if the fund is raised for $32 million. If the target is not met, all previous donations will be refunded to the user. Wha
Ten Volkswagen PCs: How Silicon Valley's new generation builds next-gen computers
Source: CNET Technology Information NetworkThe crowdfunding revolution has spawned many attractive desktops, laptops and Tablet PCs. Here are some of the most interesting and successful examples.While the PC market is no longer a fast-growing industry as it used to be, it does not stop innovators from building new products through crowdfunding projects.By slashing part costs (sometimes including open s
A month ago, Canonical launched a crowdfunding project on indiegogo to raise $32 million a month ago, according to foreign media reports. A month later, the UbuntuEdge project apparently failed to reach its expected goal, but it still raised $12.8128 million to become the most popular crowdfunding project. However, although the project did not reach the goal, the Canonical team did not intend to give up Ubun
A month ago, Canonical launched a crowdfund
Four days ago, the UbuntuEdge fundraising project launched a prize-winning promotion activity, which is now completed in three days. Whether you have donated $20 or $2000, you can participate in this activity. Participating in this activity will have the opportunity to win enough money to buy the UbuntuEdge service with enough text lettering for your UbuntuEdge mobile phone. The activities are as follows: 1. You must first register and log on to the Indiegog
Today, the Canonical mobile phone brand UbuntuEdge, on the page of the crowdfunding platform Indiegogo, shows that the fundraising for this project has already exceeded $10.6 million. This broke the $10.26 million fundraising record previously created by Pebble smart watches on KickStarter and became the most frequently-raised product in the current fixed fundraising project. However, UbuntuEdge is set too high ($32 million) as a fundraising target, w
On the evening of July 22, August 22, Beijing time, Canonical, a developer of the pivotulinux system, launched a crowdfunding campaign for the UbuntuEdge smartphone on the crowdfunding website Indiegogo last month to raise $32 million. This week, the final funding result was nearly $20 million from this target, and the project was terminated. From October 21 to September 21, more than 27 thousand supporters promised to provide Canonical with $12.8 mil
Canonical originally planned to raise $32 million to create the UbuntuEdge smartphone project seems to have encountered some problems, because on the first day of fundraising, the amount of money raised reached $3.4 million, it has exceeded 10% of the target amount, but the growth has slowed down significantly from the next day. Currently, UbuntuEdge only raised $3.9 million for the Indiegogo website, that is, only $0.5 million for the past 21 hours o
Canonical launched a $32 million UbuntuEdge smart phone funding manufacturing project on the Volkswagen financing platform indiegogo. UbuntuEdge is only limited to 40 thousand units, of which the Oneday version is priced at $600 (sold), and the price of the later version is increased to $810. One of the reasons why the price is so high is that the configuration is ultra-Luxurious: 4 GB memory, 4.5 inch GB storage space, x hd display screen, the fastes
"
}
extern"C" {
TestLib obj;
void display () {
Obj.display ();
}
void Display_int () {
Obj.display (2);
}
}
g++ Test.cpp-fpic-shared-o libtest.soUsing this method is a bit of a hassle but can solve the problem. Notice that there will still be an extern "C" or the built-in dynamic link library does not have the symbolic table of these functions.
Import cTYPES
so = cTYPES. Cdll ("./libtest.so")
So.display ()
So.display_int (1)
The results of the opera
();}
VoidDisplay_int () {obj. display (2 );}}
G ++ test. cpp-fPIC-shared-o libtest. soThis method is troublesome but can solve the problem. Note that there will still be an extern "C" later. Otherwise, the constructed dynamic link library does not have the symbol tables of these functions.
ImportCtypesso = ctypes. CDLL ("./libtest. so") so. display () so. display_int (1)
The running result is as follows:^ [Root @:~ /Projects/nugget/kvDB-py] # python call. pyFirst displaySec
Basepro Shell for the electroplating of aluminum alloy material, and the use of wedge design, which creates enough space for the hard drive to join. There are 4 USB 3.0 connectors on the side, and the hard drive is powered by USB, so there is no need to use additional power cords.
Basepro is currently Indiegogo for fund-raising and offers a variety of models for supporters to choose from, with no hard disk version of the price of 69 U.S. dollars (abo
Ghost button permeability simple, both the function of the button, but also the "thin" visual beauty, in the design can highlight the function, guide users, is now a popular web design trend, how to grasp the specter of a handy? Today to share a group of outstanding cases worthy of study, quickly to learn from it!
Indiegogo
Hire my Friend
Sputnik
Transitions
HARBR Co
Unsung
device is different.
Finally, the Ubuntu edge smartphone is actually Ubuntu for Android. Although it failed to raise funds on the indiegogo website last year (the target is $32 million), it still has $ more than 10 million to use, with the continuous implementation of the phone is pc concept, the era of set-top box and three-in-one (television, computer, and telephone), which can even act as an intelligent electric TV, is likely to come.
For more inf
:
Http://sketchfab.com/show/c1d2b84d880741b189577ef5698112b0
If it feels good, you can donate to purchase one through the ubuntu-edge fundraising project on indiegogo.
Related reading:
Canonical CEO Jane Silber talked about Ubuntu Edge http://www.linuxidc.com/Linux/2013-07/87898.htm in an interview with CNBC
Ubuntu Edge mobile http://www.linuxidc.com/Linux/2013-07/87762.htm
Ubuntu Edge mobile rendering diagram appeared in advance before the Canonic
MarkShuttleworth (head of Ubuntu parent company) announced on reddit.com that UbuntuEdge will be supported for six years. Wewanttosuppthetheedgewithupdatesto14.04ltsandthenthroughthelifeof14.04lts, whichwouldbeatotalof6ye
Mark Shuttleworth (head of Ubuntu parent company) announced on reddit.com that Ubuntu Edge will be supported for six years.
We want to support the edge with updates to 14.04 LTS and then through the life of 14.04 LTS, which wocould be a total of 6 years.
Mark Shuttleworth
M
has not completed its crowdfunding project in Indiegogo. Its estimated financing amount is $32 million as of yesterday's end, with a gap of $20 million.
Ubuntu Edge is beautifully designed and its hardware is even more amazing. If it is made, it must be a product that the high-end smartphone market is scrambling to pursue. However, what people value is not the hardware specification of Ubuntu Edge, but its usage.
Ubuntu Edge has 128 GB of built-in me
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