How to uninstall the OpenJDK that comes with CentOS7 ?, Centos7 comes with openjdkHow do I uninstall the OpenJDK that comes with CentOS7?
[Root @ hadoop-master tools] # rpm-qa | grep javajava-1.8.0-openjdk-headless-1.8.0.101-3.b13.el7_2.x86_64javapackages-tools-3.4.1-11.el7.noarchtzdata-java-2016f-1.el7.noarchjava-1.8.0-open
Http://blog.sina.com.cn/s/blog_5c91824f0102vdkj.htmlThe ARM processor, known for its low power consumption and small size, is based on arm for almost all handset processors, and is widely used in embedded systems, and its performance is also excellent in the same power consumption products.Armv6, ARMv7, armv7s, arm64 are all arm processor instruction sets, all instruction sets are in principle backwards compatible, such as Iphone4s's CPU default instr
Xcode armv6 armv7 armv7s arm64, xcodearmv6
Currently, ios provides the following instruction sets:
Armv6
IPhone
IPhone2
IPhone3G
The first and second generations of iPod Touch
Armv7
IPhone 4
IPhone4S
Armv7s
IPhone 5
IPhone5C
Arm64
IPhone5S
IPhone 6
The machine's support for instruction sets is backward compatible, so
Armv7, armv7s, arm64, i386, x86_64, and armv7armv7s in iOSPreface
What do armv7, armv7s, arm64, i386, and x86_64 in iOS mean? In Xcode, how do I select?Introduction
Armv7, armv7s, and arm64 are ARM processor instruction sets.
I386 and x86_64 are mac processor instruction sets.Which devices are using these instruction sets?
Arm64: iPhone6s | iphone6s plus | iPhone
I. Summary In peacetime project development, may use the third party to provide the static library. A, if the. A provider technology is immature, problems can arise when using it, such as: Compile error on the real machine: No architectures to compile for (Only_active_arch=yes, ACTIVE arch=x86_64, valid_archs=i386). Compile error on Simulator: No architectures to compile for (Only_active_arch=yes, ACTIVE arch=armv7s, Valid_archs=armv7 armv6). To solve
Armv refers to the instruction set, which is hardware-oriented. Currently, iPhone 5 supports armv7s.
The iPhone 5 will ship with and only run IOS 6.0. to coincide with the launch of IOS 6.0, Apple has seeded developers with a newer version of its development tools. xcode 4.5 makes two major changes: it drops support for the armv6 ISA (usedThe arm11 core in the iPhone 2G and iPhone 3G), keeps support for armv7 (used by modern arm cores) and it adds s
Shimen the main contribution, respect the work of the author, please do not reprint.If the article is helpful to you, you are welcome to donate to the author, support the Shimen, donate the amount at random, ^_^I want to donate: Click DonateCocos2d-x source Download: Dot I teleportbefore each version of the IPA package is out of the 20M, and later do not know from which version rather basketball package will be nearly 40M each time, but there is no significant increase in the project of third-pa
Xcode 6 creates dynamic and static universal frameworks (solving the problem that armv7s arm64 armv7 is not supported) and xcodearmv7s
Have you ever written an SDK or want to make some common tool classes into the Framework? You may have completed this task by writing scripts on your own. I believe many people use iOS-Universal-Framework. With the release of Xcode 6, I believe all of you know it, xcode 6 supports the Framework. at the same time, iOS-U
To analyze the usage of the armv7 architecture register, use the C program to generate and analyze the armv7 assembly.
1. The C source code is as follows (the function is very simple to simplify ):
# Cat callfunc. c
#include
2. Generate arm assembly code through cross-Compilation:
# Arm-none-Linux-gnueabi-gcc-March = armv7-a callfunc. C-S-O callfunc. ASM
The as
Apple mobile device processor instruction set ARMV6, ARMV7, armv7s, and arm642014-09-15 09:35 Edit: suiling Category: iOS development Source: Cocoachina 05756ARM Mobile processor instruction set (via Ya Xiang Small build)The ARM processor, known for its low power consumption and small size, is based on arm for almost all handset processors, and is widely used in embedded systems, and its performance is also excellent in the same power consumption prod
(Via Ya Xiang Xiao Zhu)The ARM processor, known for its low power consumption and small size, is based on arm for almost all handset processors, and is widely used in embedded systems, and its performance is also excellent in the same power consumption products.Armv6, ARMv7, armv7s, arm64 are all arm processor instruction sets, all instruction sets are in principle backwards compatible, such as Iphone4s's CPU default instruction set is
Original address: Linux kernel source Code Analysis--Kernel boot (4) Image kernel boot (setup_arch function) (Linux-3.0 ARMv7) TekkamanninjaTransferred from: http://blog.chinaunix.net/uid-25909619-id-4938393.htmlIn the analysis of the Start_kernel function, there are schema-related initialization function Setup_arch. This function varies according to the architecture and the detailed analysis of the ARM architecture is as follows:
void __init Setu
Tags: blog HTTP Io AR for file SP ArtA series of errors are found when a static library is imported.Undefined symbols for architecture armv7:"STD: String: resize (unsigned long, char)", referenced from:I finally found a lot of articles on the Internet.Http://stackoverflow.com/questions/12968369/undefined-symbols-for-architecture-armv7-when-using-zxing-library-in-xcode-4-5This article is available:Http://blo
Original address: Linux kernel source Code Analysis--Kernel boot (5) Image kernel boot (rest_init function) (Linux-3.0 ARMv7) TekkamanninjaTransferred from: http://blog.chinaunix.net/uid-25909619-id-4938395.htmlThe previous rough analysis of the Start_kernel function, which basically is the memory management and the data structure initialization of each subsystem. When the kernel initialization function Start_kernel executes to the end, it is calledre
After so many errors have occurred in the Ubuntu file system built by myself, I feel it is necessary to write about the permissions of the file system. Previous errors mainly occur due to file permissions. Linux system permissions are its security and also its troubles. I. First of all, I would like to explain why a permission error occurs: My ubuntu armv7 file system is built on my computer, and my computer is also ubuntu, use the Administrator accou
The following error occurs during xcode Compilation:
Undefined symbols for architecture armv7:
"_ Objc_class _ $ _ calayer", referenced from:
Objc-class-ref in egorefreshtableheaderview. o
"_ Catransform3didentity", referenced from:
-[Egorefreshtableheaderview setstate:] In egorefreshtableheaderview. o
"_ Kcatransactiondisableactions", referenced from:
-[Egorefreshtableheaderview setstate:] In egorefreshtableheaderview. o
"_ Kcagravityresizeaspect",
Original address: Linux kernel source Code Analysis--Kernel boot (6) Image kernel boot (do_basic_setup function) (Linux-3.0 ARMv7) TekkamanninjaTransferred from: http://blog.chinaunix.net/uid-25909619-id-4938396.htmlAfter the basic analysis of the kernel boot process, there is a more important initialization function is not analyzed, that is do_basic_setup. Called Do_basic_setup in the kernel init thread, this function also does a lot of initializatio
Today, I downloaded an iPhone from the Internet.ProgramTo learn the source code, the result is not successful during running,
The following error is reported: No ubuntures to compile for (archs = i386, valid_archs = armv6 armv7.
This program was written under the iPhone SDK 3.0. I am currently using the latest SDK. It should have been a problem in this regard. I searched it online,
The solution is as follows:
In the ubuntures column under the bu
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