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| author | James Robertson <jwrober@linuxfromscratch.org> | 2003-09-23 02:27:47 +0000 |
|---|---|---|
| committer | James Robertson <jwrober@linuxfromscratch.org> | 2003-09-23 02:27:47 +0000 |
| commit | 255504f783e4f8960835d74c66b450a0e1ecc658 (patch) | |
| tree | 69a350488eb4eeee55ee3f86b3bd30feb6ef234e /chapter05 | |
| parent | b036adcf56a6014bf6a5efd34f43aa10de03c531 (diff) | |
Chapter 5 - Updated the Why Static page to more accurately represent the difference between statically and dynamically linked binaries. Thanks to Ian Molton for point this out. Fixes Bug 602. Updated bookinfo with this year in copyright.
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2868 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
Diffstat (limited to 'chapter05')
| -rw-r--r-- | chapter05/whystatic.xml | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/chapter05/whystatic.xml b/chapter05/whystatic.xml index 77e94e21e..1b07b0b2e 100644 --- a/chapter05/whystatic.xml +++ b/chapter05/whystatic.xml @@ -11,14 +11,19 @@ functions ready-made in libraries. The major library on any Linux system is <filename>glibc</filename>. To get an idea of what it contains, have a look at <filename>glibc/index.html</filename> somewhere on your host system.</para> -<para>There are two ways of linking the functions from a library to a program -that uses them: statically or dynamically. When a program is linked -statically, the code of the used functions is included in the executable, -resulting in a rather bulky program. When a program is dynamically linked, -what is included is a reference to the linker, the name of the library, and -the name of the function, resulting in a much smaller executable. This -executable has the disadvantage of being somewhat slower than a statically -linked one, as the linking at run time takes a few moments.</para> +<para>There are two ways of linking the functions from a library to a program +that uses them: statically or dynamically. When a program is linked +statically, the code of the used functions is included in the executable, +resulting in a rather bulky program. When a program is dynamically linked, +what is included is a reference to the linker, the name of the library, and +the name of the function, resulting in a much smaller executable. Under +certain circumstances, this executable can have the disadvantage of being +somewhat slower than a statically linked one, as the linking at run time takes +a few moments. It should be noted, however, that under normal circumstances on +today's hardware, a dynamically linked executable will be faster than a +statically linked one as the library function being called by the dynamically +linked executable has a good chance of already being loaded in your system's +RAM.</para> <para>Aside from this small drawback, dynamic linking has two major advantages over static linking. First, you need only one copy of the executable library |