for the reader to have a holistic understanding of how source code is compiled into binary executable programs, the Basic Principles of program compilation, linking, and loading are described in a few ways. First we introduce different CPU architectures and the format of executable files for different operating systems. Then take a few simple C programs as examples, to introduce the compiler and linker to the program source code to do the processing. Finally, let's take a look at the program ex
information about the system's ' TTY ' implementation and do not detect configuration names that are not known.
It is generally better to detect specific features than to detect specific system types, as Unix and other systems evolve, and different systems replicate certain functions from another system.
When you cannot detect a configuration name in the ' Configure ' script, it is better to define a macro that describes the function than a macro that describes the system type. This allows the
third time char, The integer data is then combined. If the variable is in a natural alignment position, the data can be fetched only once. Some systems are very strict with alignment requirements, such as SPARC systems, where an error occurs if an misaligned data is taken, for example:Char Ch[8];Char *p = ch[1];int i = * (int *) p; The runtime will report segment error, and in the x86 will not be wrong, but the efficiency of the decline. Third,
the fast path and the inline;
The technique of inline
Put inline work in the late development cycleUsing conditional inline, the technique of macro and compilation options is not inline at the beginning of development, and then the custom inline option is added to the later development.Inline in a SPARC architecture
SPARC has sufficient registers, in the limited call depth range of almost no call to ret
Involving procedures:
Get
Describe:
IBM HTTP Server Remote overflow by committing an extra long GET request
With:
IBM's HTTP server is a Web server. A denial of service vulnerability exists in the version used by Windows NT.
Submitting a GET request that is more than 219 characters will cause the server to stop responding with an error. Restarting the application is required to restore the service to work properly. Successful exploitation of this vulnerability could allow an attacker to exec
cloud migration can improve the quality of enterprise applications and application performance, but also reduce the hundreds of database as a management, Improve the flexibility and effectiveness of the overall operation in the process of helping the enterprise move towards the cloud.
Oracle has also disclosed that Oracle 12c has been optimized for the company's SPARC processors and Intel Xeon processors, after years of research and development for o
Server
Involving procedures:Get
Describe:IBM HTTP Server Remote overflow by committing an extra long GET request
With:IBM's HTTP server is a Web server. A denial of service vulnerability exists in the version used by Windows NT.
Submitting a GET request that is more than 219 characters will cause the server to stop responding with an error. Restarting the application is required to restore the service to work properly. Successful exploitation of this vulnerability could allow an attacker to e
resolve the convection) is used. However, when it is necessary to communicate between multiple platforms, data structure-based communication often has to pay attention to the following aspects:[1] byte order[2] variable length[3] Memory alignmentIn common system architectures (Linux x86,windows), non-single-byte-length variable types are low-byte in front, while in some specific systems, such as the Soalris SPARC platform, high-byte is in front. If y
shared resource, each user may require a different view of the data held in the Datab Ase. To satisfy these needs, the architecture of most commercial DBMSs available today are based to some extent on the so-called ANSI-SPARC architecture. In this chapter, we discuss various architectural and functional characteristics of DBMSs. Structure of this chapter NBSP;NBSP; under section 2.1, we examine the Three-level ansi-sp ARC architecture and its
]/[emailprotected]/[emailprotected]/[email Protected]/[emailprotected]/[emailprotected],0:a File and args:-vmodule/platform/sun4v/kernel/sparcv9 /unix:text at [0x1000000, 0x10c1c1d] data at 0x1800000module/platform/sun4v/kernel/sparcv9/genunix:text at [0x10c1c20, 0X12A6B77] Data at 0x1935f40module/platform/sun4v/kernel/misc/sparcv9/platmod:text @ [0x12a6b78, 0x12a6b8f] data at 0x 198d598module/platform/sun4v/kernel/cpu/sparcv9/sparc-t4:text at [0x12a
A bash vulnerability exists in the Sun Solaris Low version To resolve the issue by uninstalling or upgrading.1, all the PKG installation package:HTTP://MIRROR.OPENCSW.ORG/OPENCSW/ALLPKGS/2, download and install: #gunzip bash-4.3.33,rev=2015.02.15-sunos5.10-sparc-csw.pkg.gz#pkgadd-d bash-4.3.33,rev=2015.02.15-sunos5.10-sparc-csw.pkg The following packages is available:1 cswcas-etcshells cas_etcshells-class a
,sigxfsz, and the Sigbus,linux default action for some machine architectures is a (terminate), SUSv2 is C (Terminate and dump core).Here are some other signals.Signal value processing action causes the signal----------------------------------------------------------------------Sigiot 6 C io capture instruction, synonymous with SIGABRTSIGEMT 7,-, 7Sigstkflt-,16,-A coprocessor Stack ErrorSIGIO 23,29,22 A I/O operation is now available (4.2 BSD)SIGCLD-,-, A and SIGCHLD synonymousSIGPWR 29,30,19 A p
Typically, only python2.x is used on Solaris 10. If you use Python3, one is http://www.sunfreeware.com get the binary version available, but the site is not available for free download, so we need to compile it ourselves. The first is to download the source code on the Python website, I downloaded the pythob-3.4.3.tgz, which can be used for SPARC and x86 versions. Then the compiler is downloaded, because SUNCC compiler does not support Python, we need
28,28,20
Ign
Window size Change (4.3BSD, Sun)
Sigunused
-,31,-
Term
Signal not used (would be sigsys)
DescriptionSome of the values of the signals are hardware-related (General Alpha and SPARC architectures with the first value, i386, PPC, and SH schemas with intermediate values, the MIPS schema with a third value, which indicates that the value of the corresponding schema is unknown).The blue is t
) SDK for JDK (include Runtime);
Java3d for Solaris/sparc Runtime for JDK (include Runtime);
Java3d for Windows (DirectX version) Runtime for JRE;
Java3d for Windows (OpenGL version) Runtime for JRE;
Java3d for Solaris/sparc SDK for JRE;
Java3d for Solaris Runtime bit support;
The first three versions are development packages. The 4th, 5, and 6 versions are JAVA3D runtime support packages. The last on
servers, routers and firewalls.
FreeBSD has two development branches, Freebsd-current and freebsd-stable. The former includes the developing, experimental procedures, this is a developing version, immature, not suitable for production use. Most of the users are FreeBSD development testers and FreeBSD enthusiasts. The latest version of the current branch is FreeBSD 5.1-release. Freebsd-stable is a stable version, the experimental or not tested features will not appear on this branch. This versi
thread
There are three more commonly used parameters, and some:
Xx:minheapfreeratio=40
Minimum percentage of heap free over GC to avoid expansion.
Xx:maxheapfreeratio=70
Maximum percentage of heap free over GC to avoid shrinking.
xx:newratio=2
Ratio of new/old generation sizes. [Sparc-client:8; x86-server:8; x86-client:12.] -client:8 (1.3.1+), X86:12]
xx:newsize=2.125m
Default size of new generation (in bytes) [5.0 and newer:64 bit VMs are s
Big-endian (large byte sequence, high byte order)Little-endian (small byte order, low byte order)Host byte orderNetwork byte orderJava byte order1. Big-endian, Little-endian are related to multibyte-type data such as the Int,short,long type, but have no effect on single-byte byte data. Big-endian is low byte emissions at the low end of memory, high byte emissions in the high-end memory. and Little-endian just the opposite.like int a = 0x05060708stored in the case of Big-endian:BYTE number 0 1 2
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