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+\" Hey, EMACS: -*- nroff -*-
+.\" Copyright 2012 Cray Inc.
+.\" All rights reserved.
+.\" Licensed under LGPL 2.1 by Cray Inc.
+.\" First parameter, NAME, should be all caps
+.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
+.\" other parameters are allowed: see man(7), man(1)
+.TH LD.HUGETLBFS 1 "March 12, 2012"
+.\" Please adjust this date whenever revising the manpage.
+.\" Some roff macros, for reference:
+.\" .nh disable hyphenation
+.\" .hy enable hyphenation
+.\" .ad l left justify
+.\" .ad b justify to both left and right margins
+.\" .nf disable filling
+.\" .fi enable filling
+.\" .br insert line break
+.\" .sp <n> insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+ld.hugetlbfs \- link a program for huge pages
+.B ld.hugetlbfs [options]
+\fBld.hugetlbfs\fP replaces the normal \fBld\fP command for linking programs
+to use hugepages. Under gcc, you should use the option
+\fB-B /usr/share/libhugetlbfs\fP which tells gcc to look in a non-standard
+location for the linker. This could be set in the \fBCFLAGS\fP environment
+.B -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>]]
+.B -Wl,--hugetlbfs-link=B
+Under binutils 2.16 or older, this option will link the application to store
+BSS data (only) into hugepages.
+.B -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.
+.I libhugetlbfs(7),
+.I hugectl(8),
+.I hugeedit(8)
+libhugetlbfs was written by various people on the libhugetlbfs-devel
+mailing list.