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>
We fopen() the output file in common code but fclose() it in the
backend. This is bad for a variety of reasons:
1. it is generally an awkward interface to change ownership.
2. we should use ferror() to test for write errors, and that is
better done in common code.
3. it requires more code.
4. we still need to fclose() in common code during error handing.
Thus, move the fclose() of the output out of the backends, and add
fflush() so we can test ferror() on output.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
When the user generates an error via %warning, %error, or %fatal,
treat is as any other error message. The attempt at making them stand
out really looked ugly when the preprocessor adds additional tracing
information.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
We always need to process %+ at least once, but we also always need to
reprocess smacros after pasting. The solution to this is to make sure
we always reprocess %+ after the first expansion pass.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Instead of removing the list file on error, keep the list file and
include the errors in the list file. This makes it actually possible
to debug things that involve deep macro recursion, where the line
number is pretty much meaningless.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
outdbg is actually a good starting point to make a new backend, so we
really should endeavor to make it do things "right".
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
The OUT_REL*ADR types pass a pointer which points to an int64_t
which then should be truncated down to size. This matters on
bigendian platforms.
Add OUT_REL8ADR.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
The documentation uses "Intel hex", with that capitalization (Intel
being a proper noun, hex being descriptive) so make the help message
match.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Revert to original %+ behavior. This is what we really wanted in the
first place, except this time we have fixed some bugs.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Revert to the earlier behavior of not expanding %+ until the final
phase of smacro expansion. However, the previous code has:
if (expanded && paste_tokens(&thead, true)) {
... which would inhibit paste_tokens() if expanded was false on the
first iteration. However, if expand_mmac_params is not expanding %+,
then we cannot bypass this expansion. Thus use:
pasted = paste_tokens(&thead, true);
if (expanded && pasted) {
... instead.
This seems to work with both Syslinux and x264 usage, and therefore
hopefully should be compatible with earlier versions of NASM.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Update user-visible changes so far. Since I consider the license
change alone to be big enough of a deal to justify a "real" version
number, make this version 2.07.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
*To the best of my knowledge*, we now have authorization from everyone
who has significantly contributed to NASM in the past. As such,
change the license to the 2-clause BSD license.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
- add assert so we don't try to write 2^64 bytes of zero
- explicitly track the Intel hex "LBA" (64K page) instead of playing
games with the last byte written. This way it is more explicit
what we're doing and why.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
BR 677841 was fixed backwards, with a reverse condition. Correct the
direction of the fix, and add an assert for the overflow condition.
Note: the bug was non-manifest in previous build, so this is not a
security issue.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
In the "NASM shell", it makes sense for NASM to be first in the PATH,
not last. That way if the user has more than one version of NASM
installed, and one of them is global, the "NASM shell" for any one
version will still pick up the proper version.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Change the "noreturn" macro to "no_return", to avoid problems with
system header files which use __attribute__((noreturn)) rather than
__attribute__((__noreturn__)) as is appropriate for system headers.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Consider that argv[0] may contain extensions like .exe as well as
pathname prefixes. Handle it by searching backwards for the string
"rdf2" and then extract the alphanumeric tail that follows.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
We seem to use the term "extensions" to mean anything that is specific
to an object format, so continue to do so.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Using saa_fpwrite() to dump a section to a file automatically does
saa_rewind(), but if we use saa_rnbytes() to do bit by bit then we
manually need to to saa_rewind() before we start.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
