llvm-ld - LLVM linker
llvm-ld <options> <files>
The llvm-ld command is similar to the common Unix utility,
links together bytecode modules to produce an executable program.
- -o filename
This overrides the default output file and specifies the name of the file that
should be generated by the linker. By default, llvm-ld generates a file named
a.out for compatibility with ld. The output will be written to
This option specifies the name of a library to search when resolving symbols
for the program. Only the base name should be specified as name, without a
lib prefix or any suffix.
This option tells llvm-ld to look in Path to find any library subsequently
specified with the -l option. The paths will be searched in the order in
which they are specified on the command line. If the library is still not found,
a small set of system specific directories will also be searched. Note that
libraries specified with the -l option that occur before any -L options
will not search the paths given by the -L options following it.
Link the bytecode files together as a library, not an executable. In this mode,
undefined symbols will be permitted.
An alias for -link-as-library.
Specifies the kind of machine for which code or assembly should be generated.
Generate a native binary instead of a shell script that runs the JIT from
Generate a native binary with the C back end and compilation with GCC.
Do not compress bytecode files.
An alias for the -O1 option.
Optimize for linking speed, not execution speed. The optimizer will attempt to
reduce the size of the linked program to reduce I/O but will not otherwise
perform any link-time optimizations.
Perform only the minimal or required set of scalar optimizations.
An alias for the -O2 option.
Perform the standard link time inter-procedural optimizations. This will
attempt to optimize the program taking the entire program into consideration.
Perform aggressive link time optimizations. This is the same as -O4 but works
more aggressively to optimize the program.
Do not run the inlining pass. Functions will not be inlined into other
Completely disable optimization. The various -On options will be ignored and
no link time optimization passes will be run.
Do not mark all symbols as internal.
Run the verification pass after each of the passes to verify intermediate
Strip symbol info from the executable to make it smaller.
An alias for -disable-internalize
- -load module
Load an optimization module, module, which is expected to be a dynamic
library that provides the function name
RunOptimizations. This function will
be passed the PassManager, and the optimization level (values 0-5 based on the
-On option). This function may add passes to the PassManager that should be
run. This feature allows the optimization passes of llvm-ld to be extended.
Specifies verbose mode. In this mode the linker will print additional
information about the actions it takes, programs it executes, etc.
If llvm-ld succeeds, it will exit with 0 return code. If an error occurs,
it will exit with a non-zero return code.
LLVM_LIB_SEARCH_PATH environment variable is used to find bytecode
libraries. Any paths specified in this variable will be searched after the
Maintained by the LLVM Team (http://llvm.cs.uiuc.edu).