(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
changes to the dbgfmt interface, and other assorted updates, including:
* yasm.c now calls df->initialize() and df->generate()
* a dbgfmt bytecode type with associated handling
* yasm_output_reloc_func type for use particularly by dbgfmts
* df: initialize updated; generate, bc_dbgfmt_data_{output|delete|print} added
* null-dbgfmt structure brought in line with these additions
* elf-objfmt made aware of stabs sections, and what to do with them
The bad news:
* just enough stabs output to support line number information in GDB
* GDB identifies function labels off by 3 bytes in my test, but line
numbers remain correct, somehow. Unknown whether stabs-dbgfmt or GDB
at fault.
svn path=/trunk/yasm/; revision=1037
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
- 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
FILE *'s to print to somewhere other than stdout, and the formatting is
improved through the use of a global indent_level.
Changes to main() include the ability to specify an output file.
svn path=/trunk/yasm/; revision=357
This is actually worthwhile; I found and fixed a few bugs/edge cases while
doing this.
For more information on LCLint, see <http://lclint.cs.virginia.edu/>.
svn path=/trunk/yasm/; revision=335
structures from the rest of the assembler. We're not trying to write GAS
here (yet :), but doing this will make large parts of the codebase a lot
clearer.
svn path=/trunk/yasm/; revision=314
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
Moved token.l.in, bison.y.in, and gen_instr.pl to parsers/nasm/.
New parser, preproc, and outfmt structures. None are complete; outfmt
needs the most work.
The raw preprocessor added (for no preprocessing).
Currently the default for the nasm parser is to use the raw preproc; this
should be changed to nasm_preproc once the nasm preprocessor is finished.
A dbg output format is also new; because outfmt isn't done yet, there's not
much implementation.
What structures still need creating: listfmt, debugfmt.
svn path=/trunk/yasm/; revision=133
better symbol table functions
calling them from yacc rather than lex
a new warning for .label before normal_label
locallabel_base now a symrec* instead of a strdup'd string.
Still needs some more error checking (to not allow multiple copies of
the same label, etc.)
Also includes move to y_strdup for bison.y.in (ANSI compatibility)
svn path=/trunk/yasm/; revision=51
Peter Johnson
Michael Urman