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CentOS 7.0 - man page for ld.hugetlbfs (centos section 1)

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)