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authorru <ru@FreeBSD.org>2002-01-10 17:49:57 +0000
committerru <ru@FreeBSD.org>2002-01-10 17:49:57 +0000
commitcbb72c9e423a69c6d7b2006dfebdcd77db944164 (patch)
tree31c288fb9740e3e36ea3237f65e41b3132662978 /libexec
parent812ff7ad3b054a70755df0036dbf4af5d1064fbe (diff)
downloadFreeBSD-src-cbb72c9e423a69c6d7b2006dfebdcd77db944164.zip
FreeBSD-src-cbb72c9e423a69c6d7b2006dfebdcd77db944164.tar.gz
mdoc(7) police: tidy up.
Diffstat (limited to 'libexec')
-rw-r--r--libexec/rtld-elf/rtld.142
1 files changed, 25 insertions, 17 deletions
diff --git a/libexec/rtld-elf/rtld.1 b/libexec/rtld-elf/rtld.1
index d3aaeea..b32b08d 100644
--- a/libexec/rtld-elf/rtld.1
+++ b/libexec/rtld-elf/rtld.1
@@ -39,7 +39,8 @@
.Nm
is a self-contained shared object providing run-time
support for loading and link-editing shared objects into a process'
-address space. It is also commonly known as the dynamic linker.
+address space.
+It is also commonly known as the dynamic linker.
It uses the data structures
contained within dynamically linked programs to determine which shared
libraries are needed and loads them using the
@@ -49,15 +50,18 @@ system call.
After all shared libraries have been successfully loaded,
.Nm
proceeds to resolve external references from both the main program and
-all objects loaded. A mechanism is provided for initialization routines
+all objects loaded.
+A mechanism is provided for initialization routines
to be called on a per-object basis, giving a shared object an opportunity
to perform any extra set-up before execution of the program proper begins.
This is useful for C++ libraries that contain static constructors.
.Pp
.Nm
itself is loaded by the kernel together with any dynamically-linked
-program that is to be executed. The kernel transfers control to the
-dynamic linker. After the dynamic linker has finished loading,
+program that is to be executed.
+The kernel transfers control to the
+dynamic linker.
+After the dynamic linker has finished loading,
relocating, and initializing the program and its required shared
objects, it transfers control to the entry point of the program.
.Pp
@@ -73,7 +77,7 @@ utility.
recognizes a number of environment variables that can be used to modify
its behaviour as follows:
.Pp
-.Bl -tag -width LD_LIBRARY_PATH
+.Bl -tag -width ".Ev LD_LIBRARY_PATH"
.It Ev LD_LIBRARY_PATH
A colon separated list of directories, overriding the default search path
for shared libraries.
@@ -81,15 +85,19 @@ This is ignored for set-user-ID and set-group-ID programs.
.It Ev LD_PRELOAD
A list of shared libraries, separated by colons and/or white space,
to be linked in before any
-other shared libraries. If the directory is not specified then
-the directories specified by LD_LIBRARY_PATH will be searched first
+other shared libraries.
+If the directory is not specified then
+the directories specified by
+.Ev LD_LIBRARY_PATH
+will be searched first
followed by the set of built-in standard directories.
This is ignored for set-user-ID and set-group-ID programs.
.It Ev LD_BIND_NOW
When set to a nonempty string, causes
.Nm
to relocate all external function calls before starting execution of the
-program. Normally, function calls are bound lazily, at the first call
+program.
+Normally, function calls are bound lazily, at the first call
of each function.
.Ev LD_BIND_NOW
increases the start-up time of a program, but it avoids run-time
@@ -110,30 +118,30 @@ option and allows
.Xr ldd 1
to be operated as a filter more conveniently.
The following conversions can be used:
-.Bl -tag -width "xxxx"
-.It \&%a
+.Bl -tag -width 4n
+.It Li %a
The main program's name
(also known as
.Dq __progname ) .
-.It \&%A
+.It Li \&%A
The value of the environment variable
.Ev LD_TRACE_LOADED_OBJECTS_PROGNAME
-.It \&%o
+.It Li %o
The library name.
-.It \&%m
+.It Li %m
The library's major version number.
-.It \&%p
+.It Li %p
The full pathname as determined by
.Nm rtld Ns 's
library search rules.
-.It \&%x
+.It Li %x
The library's load address.
.El
.Pp
Additionally,
-.Sy \en
+.Ql \en
and
-.Sy \et
+.Ql \et
are recognized and have their usual meaning.
.El
.Sh FILES
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