diff options
| -rw-r--r-- | lib/libc/gen/dlopen.3 | 11 | ||||
| -rw-r--r-- | libexec/rtld-elf/rtld.1 | 21 |
2 files changed, 29 insertions, 3 deletions
diff --git a/lib/libc/gen/dlopen.3 b/lib/libc/gen/dlopen.3 index 118e165..187f817 100644 --- a/lib/libc/gen/dlopen.3 +++ b/lib/libc/gen/dlopen.3 @@ -32,7 +32,7 @@ .\" @(#) dlopen.3 1.6 90/01/31 SMI .\" $FreeBSD$ .\" -.Dd September 10, 2002 +.Dd April 1, 2009 .Os .Dt DLOPEN 3 .Sh NAME @@ -123,7 +123,7 @@ call to One of the following flags may be ORed into the .Fa mode argument: -.Bl -tag -width RTLD_GLOBALX +.Bl -tag -width RTLD_NODELETE .It Dv RTLD_GLOBAL Symbols from this shared object and its directed acyclic graph (DAG) of needed objects will be available for resolving undefined references @@ -141,6 +141,13 @@ the absolute pathnames of all objects, to standard output. With this flag .Fn dlopen will return to the caller only in the case of error. +.It Dv RTLD_NODELETE +Prevents unload of the loaded object on +.Fn dlclose . +The same behaviour may be requested by +.Fl "z nodelete" +option of the static linker +.Xr ld 1 . .El .Pp If diff --git a/libexec/rtld-elf/rtld.1 b/libexec/rtld-elf/rtld.1 index 81f3685..839d5f1 100644 --- a/libexec/rtld-elf/rtld.1 +++ b/libexec/rtld-elf/rtld.1 @@ -28,7 +28,7 @@ .\" .\" $FreeBSD$ .\" -.Dd March 23, 2009 +.Dd April 1, 2009 .Dt RTLD 1 .Os .Sh NAME @@ -58,6 +58,25 @@ 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 +When resolving dependencies for the loaded objects, +.Nm +may be allowed to translate dynamic token strings in rpath and soname +by setting +.Fl "z origin" +option of the static linker +.Xr ld 1 . +The following strings are recognized now: +.Bl -tag -width ".Pa $PLATFORM" +.It Pa $ORIGIN +Translated to the full path of the loaded object. +.It Pa $OSNAME +Translated to the name of the operating system implementation. +.It Pa $OSREL +Translated to the release level of the operating system. +.It Pa $PLATFORM +Translated to the machine hardware platform. +.El +.Pp The .Nm utility itself is loaded by the kernel together with any dynamically-linked |
