Solaris 2.6 Release

• Weak symbol references can trigger archive member extraction by using the link-editor's -z weakextract option. Extracting all archive members can be achieved using the -z allextract option. See Archive Processing.

• Shared objects specified as part of a link-edit that are not referenced by the object being built can be ignored, and hence their dependency recording suppressed, using the link-editor's -z ignore option. See Shared Object Processing.

• The link-editor generates the reserved symbols _START_ and _END_ to provide a means of establishing an object's address range. See Generating the Output File.

• Changes have been made to the runtime ordering of initialization and finalization code to better accommodate dependency requirements. See Initialization and Termination Routines.

• Symbol resolution semantics have been expanded for dlopen(3DL). See Symbol Lookup, RTLD_GROUP in Isolating a Group, and RTLD_PARENT in Object Hierarchies.

• Symbol lookup semantics have been expanded with a new dlsym(3DL) handle RTLD_DEFAULT. See Default Symbol Lookup Model.

• Extensions have been made to filter processing that allow more than one filtee to be defined, and provide for forcibly loading filtees. See Shared Objects as Filters.

• You can record additional version dependencies using the mapfile file control directive $ADDVERS. See Binding to Additional Version Definitions.

• A runtime linker audit interface provides support for monitoring and modifying a dynamically linked application from within the process. See Runtime Linker Auditing Interface.

• A runtime linker debugger interface provides support for monitoring and modifying a dynamically linked application from an external process. See Runtime Linker Debugger Interface.

• Additional section information is supported. See Table 7–11 for SHN_BEFORE and SHN_AFTER. See Table 7–14 for SHF_ORDERED and SHF_EXCLUDE.

• A new dynamic section tag, DT_1_FLAGS, is supported. See Table 7–45 for the various flag values.

• A package of demonstration ELF programs is provided. See Chapter 7, Object File Format.

• The link-editors now support internationalized messages. All system errors are reported using strerror(3C).

• The new eliminate mapfile directive, or the -B eliminate option, enable you to elimination local symbol table entries. See Symbol Elimination.