(Hopefully) finish cleanups begun in phase 1 (see phase 1 commit message),
making dbgfmt, objfmt, optimizer, and preproc module interfaces follow the
same thread-safe interface style as the phase 1 changes.
Also put in a large number of doxygen documentation cleanups.
svn path=/trunk/yasm/; revision=1097
As yasm has evolved, various minor additions have been made to libyasm to
support the new features. These minor additions have accumulated, and
some contain significant redundancies. In addition, the core focus of
yasm has begun to move away from the front-end commandline program "yasm"
to focusing on libyasm, a collection of reusable routines for use in all
sorts of programs dealing with code at the assembly level, and the modules
that provide specific features for parsing such code.
This libyasm/module update focuses on cleaning up much of the cruft that
has accumulated in libyasm, standardizing function names, eliminating
redundancies, making many of the core objects more reusable for future
extensions, and starting to make libyasm and the modules thread-safe by
eliminating static variables.
Specific changes include:
- Making a symbol table data structure (no longer global). It follows a
factory model for creating symrecs.
- Label symbols now refer only to bytecodes; bytecodes have a pointer to
their containing section.
- Standardizing on *_create() and *_destroy() for allocation/deallocation.
- Adding a standardized callback mechanism for all data structures that
allow associated data. Allowed the removal of objfmt and
dbgfmt-specific data callbacks in their interfaces.
- Unmodularizing linemgr, but allowing multiple linemap instances (linemgr
is now renamed linemap).
- Remove references to lindex; all virtual lines (from linemap) are now
just "line"s.
- Eliminating the bytecode "type" enum, instead adding a standardized
callback mechanism for custom (and standard internal) bytecode types.
This will make it much easier to add new bytecodes, and eliminate the
possibility of type collisions. This also allowed the removal of the
of_data and df_data bytecodes, as objfmts and dbgfmts can now easily
implement their own bytecodes, and the cleanup of arch's bytecode usage.
- Remove the bytecodehead and sectionhead pseudo-containers, instead
making true containers: section now implements all the functions of
bytecodehead, and the new object data structure implements all the
functions of sectionhead.
- Add object data structure: it's a container that contains sections, a
symbol table, and a line mapping for a single object. Every former use
of sectionhead now takes an object.
- Make arch interface and all standard architectures thread-safe:
yasm_arch_module is the module interface; it contains a create()
function that returns a yasm_arch * to store local yasm_arch data; all
yasm_arch_module functions take the yasm_arch *.
- Make nasm parser thread-safe.
To be done in phase 2: making other module interfaces thread-safe. Note
that while the module interface may be thread-safe, not all modules may be
written in such a fashion (hopefully all the "standard" ones will be, but
this is yet to be determined).
svn path=/trunk/yasm/; revision=1058
module users to ensure the module interface they're using matches the
interface the module was compiled with. The #define YASM_module_VERSION
should be incremented on every functional change to the module interface.
svn path=/trunk/yasm/; revision=1021
WRT, and ':' (SEGOFF) usage. This change also brings the yasm_intnum_calc()
interface in line with the yasm_floatnum_calc() interface.
Note: This may not be the final place we want these error messages to reside,
but the lindex addition should remain for the sake of consistency.
svn path=/trunk/yasm/; revision=953
- Move config.h and util.h from libyasm (and installed libyasm) to top level.
- Move yasm_* functions from util.h to coretype.h.
- Remove a number of autoconf-related YASM_*_INTERNAL options from libyasm.h.
- Rename YASM_INTERNAL to YASM_LIB_INTERNAL; it now actually means what the
comment describes: enables definitions that violate the yasm_* namespace.
While we're at it, no longer define YASM_LIB_INTERNAL from yasm frontend, so
it's closer to what a real typical libyasm-using application would look like.
svn path=/trunk/yasm/; revision=944
key headers in certain situations (config.h when compiling with Visual C++ for
one), and is also more correct in general.
svn path=/trunk/yasm/; revision=887
libintl dependency in modules.
Also standardize initialize() and cleanup() functions.
Move replace_extension() from file.c to main.c.
Clean up some extern variable declarations in various places (particularly
nasm-compatible parser).
svn path=/trunk/yasm/; revision=792
the line index. Fixes some minor line number/error message nits due to
incorrect usage of line_index in old global variable method.
svn path=/trunk/yasm/; revision=787
/distances/ between bytecodes in a section using bc_calc_dist() functions (a
"typical" one is provided for most occasions). expr_expand_labelequ() is gone,
as its functionality is integrated into expr_simplify(). Currently these
changes break most bin objfmt output, as it doesn't know how to resolve
absolute labels yet. Also, very preliminary expr support for :, SEG, and WRT
operators has been added (part of Bug#2). Several other minor bug fixes.
svn path=/trunk/yasm/; revision=718
intnum_new_int. Currently only just calls intnum_new_uint with a cast, but
eventually there may be a better way of handling signed numbers.
svn path=/trunk/yasm/; revision=708
bugfixes to the bc_tobytes() family and other functions. Binary object output
is now close to complete: just a few more bugs to kill!
svn path=/trunk/yasm/; revision=528
with regards to resolve_label().
MAJOR FIXME: The tobytes() pass acts like a final optimization pass. This
causes internal errors because of length mismatches (optimized to shorter len).
svn path=/trunk/yasm/; revision=521
Changes to:
objfmt interface: added parameter to directive() for sections access.
section interface: moved start to be present for all section types.
basic optimizer: add section start to offset determination.
(much of the section start changes are due to the need to make sure offsets
don't end up being optimized into byte-sized offsets that can't be relocated).
svn path=/trunk/yasm/; revision=490
This is because calc_len may want to know the current bytecode's offset (eg for
determining relative displacement length).
svn path=/trunk/yasm/; revision=458
into the optimizer stage, where it belongs. Naming has changed, but most
implementations have not been brought up to date to do what they say they
do.
svn path=/trunk/yasm/; revision=388
sections of C files. Also remove IdPath from top comment in files where
RCSID() is used. Move RCSID() to immediately after util.h include.
svn path=/trunk/yasm/; revision=313
