eld Manual

Other eld Processing
eld Manual—527255-009
4-7
Additional rules about -alf
•
GP-relative addressing from the gateways to the text segment, specifically, when
the gateway contains the 64-bit GP-relative address of the procedure for which it is
the gateway.
The way that the -alf option updates all the items listed above depends on the type
of item:
•
If the target of the reference is identified by name, -alf updates the reference
based on that name.
•
If the reference site is one that is filled in by the linker, and -alf only knows that it
needs to be updated by the amount that this DLL was rebased, -alf determines
which segment previously contained the target of the reference and then updates
the reference site by the amount that that segment moved.
eld reports an error if the existing file cannot be opened for reading. It is possible to
specify the -o option to tell the name of the new output file. If the -o option is not
specified then it defaults to the same name as the existing loadfile. Even if the existing
file is a DLL, its DLL name does not influence the output file name. The output file is
created by the same method as described in The Creation of Output Object Files on
page 2-5, including the use of the -temp_o option or the -must_use_oname option.
Here is a complete list of the user options that are allowed with the-alfoption:
-allow_missing_libs
-first_L
-L
-local_libname
-must_use_oname
-must_preset
-no_preset
-no_verbose
-no_version_check
-nostdlib
-o
-obey
-public_registry
-rld_first_L
-rld_L
-stdin
-t -temp_o
-unres_symbols
-verbose
-warn
For further information on -alf see Appendix , How -alf Updates DWARF
for a
discussion of the debug.reloc section of the object file.