MachO has this odd thing called "subsections via symbols", by which a
symbol can magically start what effectively is a new section. To
support this, add support for a calldown into the backend when a new
symbol is defined *at the current output location*, and allow it to
switch the current segment.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Add a generic facility for generating perfect string hashes, where all
that is needed is an enum and a string table. The existing mechanism
using a custom Perl script wrapped around a module continues to be
available for any use case where this particular approach isn't
sophisticated enough.
Much of this patch comes from renaming "enum directives" to "enum
directive" as a result of the string hash generator expecting a set of
uniform naming conventions.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
The directives code is already trying to do a bit more unified error
handling, so give ourselves a bit richer interface. At this point,
the conversion was pretty automatic so we probably return DIRR_OK
instead of DIRR_ERROR in a fair number of places, but that's okay.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Move directive processing to its own file, and move nasmlib/error.c to
asm/error.c (it was not used by the disassembler); remove some extern
declarations from .c files, and do some general code cleanups.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Make struct dfmt and the struct dfmt arrays const across the board,
and make them static whereever possible.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This is the null implementation of the function debug_directive. For
some reason it ended up getting mangled as "null_debug_routine".
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Remove a bunch of function pointers in the output stage; they are
never changed and don't add any value. Also make "ofile" a global
variable and let the backend use it directly.
All we ever did with these variables were stashing it in locals and
using them as-is anyway for no benefit.
Also change the global error function, nasm_error() into a true
function which invokes a function pointer internally. That lets us
use direct calls to it.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Hash all directives, even the ones that are backend-specific,
and instead pass the backend an already-parsed directive number.
Furthermore, unify null functions across various backends.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Add new copyright headers to the new output modules. As far as I
know, the only module which we still don't have a green light to
release under 2-BSD is outmacho.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Move the prototypes for the null debugging format to outform.h (for
the top-level structure declaration only) and outlib.h (for the
internal routines.)
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Move backend-specific code into the output/ directory, and make the
null debugging backend a separate file (it certainly isn't needed for
ndisasm...)
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
