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Almost all of the code present in these source files was taken

from GLIBC. In the descriptions below, all files mentioned are

with respect to the top level GLIBC source directory accept for

code taken from the Linux kernel.

boot1_arch.h

------------

Contains code to fix up the stack pointer so that the dynamic

linker can find argc, argv and Auxillary Vector Table (AVT).

The code is taken from the function 'RTLD_START' in the file

'sysdeps/mips/dl-machine.h'.

elfinterp.c

-----------

Contains the runtime resolver code taken from the function

'__dl_runtime_resolve' in 'sysdeps/mips/dl-machine.h'. Also

contains the function to perform relocations for objects

other than the linker itself. The code was taken from the

function 'elf_machine_rel' in 'sysdeps/mips/dl-machine.h'.

ld_syscalls.h

-------------

Used to contain all the macro functions for the system calls

as well as the list of system calls supported. We now include

 but with the __set_errno macro defined empty

so we can use the same file for the linker as well as userspace.

Original code was taken from the Linux kernel source 2.4.17 and

can be found in the file 'include/asm-mips/unistd.h'.

ld_sysdep.h

-----------

Contains bootstrap code for the dynamic linker, magic numbers

for detecting MIPS target types and some macros. The macro

function 'PERFORM_BOOTSTRAP_GOT' is used to relocate the dynamic

linker's GOT so that function calls can be made. The code is

taken from the function 'ELF_MACHINE_BEFORE_RTLD_RELOC' in the

file 'sysdeps/mips/dl-machine.h'. The other macro function

'PERFORM_BOOTSTRAP_RELOC' is used to do the relocations for

the dynamic loader. The code is taken from the function

'elf_machine_rel' in the file 'sysdeps/mips/dl-machine.h'. The

final macro function is 'INIT_GOT' which initializes the GOT

for the application being dynamically linked and loaded. The

code is taken from the functions 'elf_machine_runtime_setup'

and 'elf_machine_got_rel' in 'sysdeps/mips/dl-machine.h'.

resolve.S

---------

Contains the low-level assembly code for the dynamic runtime

resolver. The code is taken from the assembly code function

'_dl_runtime_resolve' in the file 'sysdeps/mips/dl-machine.h'.

The code looks a bit different since we only need to pass the

symbol index and the old GP register.