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Full Discussion: Runtime Linking shared Objects
Top Forums Programming Runtime Linking shared Objects Post 7237 by dneely on Friday 21st of September 2001 11:19:04 AM
Old 09-21-2001
I'm currently checking my code for bugs because that's always usually the problem. However, know that I'm not doing a static link at all. The compile link and runtime link are both dynamic to the same -fPIC compiled library. And the only difference between the two types of links that I know of is that the library is loaded with the executable by default on a compile link and at my discretion on a runtime link. Also the code runs totally fine on Win32 no matter what kind of linking I do. It also runs fine with a compile link (dynamic) on the Dec Alpha unix platform. Granted the library I've written is extremely complex, so the chance of bugs are great, that just seems odd to me.

The code is running fine in all situations except this one so I'm trying to be sure I am not missing something when it come to runtime linking on Unix, like a buggy operating system library loader, a linking step, or something.

Thanks again.
 

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LEARN ABOUT CENTOS

ld.hugetlbfs

LD.HUGETLBFS(1) 					      General Commands Manual						   LD.HUGETLBFS(1)

NAME

       ld.hugetlbfs - link a program for huge pages

SYNOPSIS

       ld.hugetlbfs [options]

DESCRIPTION

       ld.hugetlbfs replaces the normal ld command for linking programs to use hugepages.  Under gcc, you should use the option -B /usr/share/lib-
       hugetlbfs which tells gcc to look in a non-standard location for the linker.  This could be set in the CFLAGS environment variable.

       -Wl,--hugetlbfs-align

	      This method of linking an application permits greater flexibility at runtime.  Using HUGETLB_ELFMAP, it is possible to control which
	      program segments are placed in hugepages.  The following four settings will cause the indicated segments to be placed in hugepages:

		      HUGETLB_ELFMAP=R	      Read-only segments (text)
		      HUGETLB_ELFMAP=W	      Writable segments (data/BSS)
		      HUGETLB_ELFMAP=RW       All segments (text/data/BSS)
		      HUGETLB_ELFMAP=no       No segments

	      It is possible to select specific huge page sizes for read-only and writable segments by using the following advanced syntax:

		      HUGETLB_ELFMAP=[R[=<pagesize>]:[W[=<pagesize>]]

	      -Wl,--hugetlbfs-link=B

	      Under binutils 2.16 or older, this option will link the application to store BSS data (only) into hugepages.

	      -Wl,--hugetlbfs-link=BDT

	      Under binutils 2.16 or older, this option will link the application to store text, initialized data and BSS data into hugepages.

FILES

       [DESTDIR|/usr/share]/doc/libhugetlbfs/HOWTO

SEE ALSO

       libhugetlbfs(7), hugectl(8), hugeedit(8)

AUTHORS

       libhugetlbfs was written by various people on the libhugetlbfs-devel mailing list.

								  March 12, 2012						   LD.HUGETLBFS(1)
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