0
0
mirror of https://github.com/netwide-assembler/nasm.git synced 2025-07-24 10:25:42 -04:00

75 Commits

Author SHA1 Message Date
H. Peter Anvin (Intel)
cc843efa38 Merge tag 'nasm-2.15.04'
NASM 2.15.04

Conflicts:
	asm/listing.h
	asm/pptok.pl
	asm/preproc.c
	version

This doesn't pass travis test 3392711, which is using an extremely odd
construct of %?? in the middle of an argument sequence for an smacro
while not being in a macro itself, and expecting it to expand to the
macro name. This seems to *really* confuse the master branch.

Resolve this later...
2020-08-25 16:16:09 -07:00
H. Peter Anvin (Intel)
1227a5d7fb Merge remote-tracking branch 'github/master'
Resolved Conflicts:
	asm/preproc.c

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-08-25 15:56:05 -07:00
H. Peter Anvin (Intel)
16ab7aed21 debug: feed single-line macro definitions and include hierachy to dfmt
At least DWARF can encode C-style macros. In doing so, it wants the
file include hierarchy, so give the debug format backend the option of
receiving that information from the preprocessor.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-08-25 15:52:05 -07:00
H. Peter Anvin
d988ce719c Fix inefficient encoding of MPX instructions
BNDMK, BNDLDX, and BNDSTX are split-SIB (MIB) instructions, but do
*not* require a SIB encoding. However, TILELOAD* and TILESTORE* *do*
require a SIB in all cases. Split the MIB flag into MIB (split
address) and SIB (SIB required) flags.

This fixes travis test mpx.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-08-13 17:21:00 -07:00
H. Peter Anvin
d6b8c53b8c Merge tag 'nasm-2.15.03'
NASM 2.15.03

Resolved Conflicts:
	asm/preproc.c

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-17 17:58:38 -07:00
H. Peter Anvin
d081f0db5d fp: support bfloat16 constants
Support generating bfloat16 constants. This is a bit awkward, as "DW"
already generates IEEE half precision constants; therefore there is no
longer a single floating-point format for each size. This requires
some replumbing.

Fortunately bfloat16 fits in 64 bits, so support generating them with
a macro that uses __?bfloat16?__() to convert to integers first before
passing them to DW.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2020-07-16 23:11:03 -07:00
H. Peter Anvin (Intel)
64c7c763c2 Change dfmt->debug_macros to dfmt->debug_mmacros
... in preparation for adding dfmt->debug_smacros.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-14 12:05:03 -07:00
H. Peter Anvin (Intel)
20e0d616dc preproc: unify token codes between the preprocessor and assembler
The different token codes between the preprocessor and the assembler
is a completely unnecessary headache. Furthermore, lumping all the
operators under TOK_OTHER in the preprocessor causes a whole bunch of
unnecessary headaches.

In combining them, the only tricky part is that PP_CONCAT_MASK() is no
longer usable, as the range of token codes is too large. Replace with
dedicated category masks.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-14 11:50:55 -07:00
H. Peter Anvin (Intel)
10c9aa37a4 preproc: drop preproc_ops
There is only one preprocessor now, so drop the indirection through
preproc_ops.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-10 19:26:44 -07:00
H. Peter Anvin (Intel)
32322a9a93 preproc: get rid of the prepreprocessor and the nop preprocessor
Fold the prepreprocessor and the nop preprocessor into the main
preprocessor. This means handling # cpp-like lines and TASM
compatibility tokens in the preprocessor proper, but that is really
not very hard to do.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-09 23:34:52 -07:00
H. Peter Anvin (Intel)
e24b7c3504 Merge remote-tracking branch 'github/nasm-2.15.xx' into debug-macros
Resolved Conflicts:
	asm/assemble.c

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-09 21:13:50 -07:00
H. Peter Anvin (Intel)
79fd2b9645 data: replace data->sign with a flags field
Signed and unsigned are really two flags; might as well allow this
field to contain additional flags.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-09 20:58:10 -07:00
H. Peter Anvin (Intel)
2f171ddeec debug: invoke dfmt->linenum when the segment number changes
If the segment number changes, we also need to invoke dfmt->linenum(),
as a .nolist macro may end up emitting to more than one section.

This also adds the source location explicitly to the output data
structure; the cost for that is minimal, and will enable a more
sophisticated debug backend to receive the entire data structure in
the future.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-09 20:06:18 -07:00
H. Peter Anvin (Intel)
50184c26c7 debug: collect macro information for the debug backend
Collect macro call/nesting information for the benefit of the debug
back end. So far, the only backend for which this is provided is the
debug back end, to show what information is present.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-08 09:28:44 -07:00
H. Peter Anvin (Intel)
91bc518895 asm: fix pass_type()
Update the table used by pass_type() to give the name of the pass
type. It was not updated properly after PASS_PREPROC was added.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-08 09:14:58 -07:00
H. Peter Anvin (Intel)
5b7369d7e0 Make debug info and error messages correctly reflect macros and reps
1. Error messages would issue with the line number of %endrep.
2. Debug line information would ignore both macros and reps.
   This is doubly wrong; macros are semantically equivalent to
   inline functions, and it is expected that debuggers trace
   into these functions.

These changes finishes the last parts of moving all responsibility for
the listing enable/disable into the preprocessor, so remove the
way over-complicated macro inhibit facility from the listing module
entirely.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-05 02:16:13 -07:00
H. Peter Anvin (Intel)
87a832e391 BR 3392691: errors: issue ERR_PASS2 messages in preproc-only mode
In preproc-only mode, we only ever execute a single pass, so we need
to still issue error messages created during that pass, otherwise we
don't even generate %warning or %error messages...

Reported-by: Jason Hood <jadoxa@yahoo.com.au>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-07-03 19:02:37 -07:00
H. Peter Anvin (Intel)
4964d80fe4 BR 3392652: hold smacro expansion warnings until we are sure
Don't issue smacro expansion warnings until we are sure we are
actually *done* with the smacro expansion. The last pass of
expand_smacro_noreset() gets to commit warnings.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2020-06-04 15:59:47 -07:00
H. Peter Anvin (Intel)
84b852bff0 Implement an enhanced version of MASM's dup() and "db ?" syntax.
Add support for complex data (Dx) statement expressions involving both
initialized and uninitialized data. In addition, we have support for
overriding the size of each element on an individual item and/or list
basis.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2019-10-16 14:29:16 -07:00
H. Peter Anvin
a73ccfebcc error: replace nasm_verror() indirection with preproc callback
Since pp_error_list_macros() was introduced, the only need for
pp_verror() is to suppress error messages in certain contexts. Replace
this function with a preprocessor callback,
preproc->pp_suppress_error(), so we can drop the nasm_verror()
function pointer entirely.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2019-08-28 19:02:47 -07:00
H. Peter Anvin
d235408c65 preproc: standard macros now C-safe, %aliases off, fix %? recursion
Enough users expect the namespace starting with underscore to be safe
for symbols. Change our private namespace from __foo__ to
__?foo?__. Use %defalias to provide backwards compatiblity (by using
%defalias instead of %define, we handle the case properly where the
user changes the value.)

Add a preprocessor directive:

%aliases off

... to disable all smacro aliases and thereby making the namespace
clean.

Finally, fix infinite recursion when seeing %? or %?? due to
paste_tokens(). If we don't paste anything, the expansion is done.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2019-08-27 16:42:41 -07:00
H. Peter Anvin (Intel)
9fbd9fb859 preproc: fix mmacro nesting prevention
BR 3392602: mmacros should not nest unless so explicitly specified.

Reported-by: C. Masloch <pushbx@38.de>
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2019-08-15 19:26:52 -07:00
H. Peter Anvin (Intel)
8981724f17 masm.mac, parser: VERY limited MASM emulation package
Very limited MASM emulation.

The parser has been extended to emulate the PTR keyword if the
corresponding macro is enabled, and the syntax displacement[index] for
memory operations is now recognized.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2019-08-14 15:44:50 -07:00
H. Peter Anvin
9084beb1bb Clean up backend format names
The backend format names were rather redundant and not always
helpful. Do some cleanup.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2019-08-10 02:28:17 -07:00
H. Peter Anvin
322bee0aac Additional listing options, improve help output, fix macro limits
Additional listing options:

   -Ld to display counts in decimal
   -Lp to output a list file in every pass (to make sure one exists)

Clean up the help output and make it comprehensive. The -hf and -y
options are no longer necessary, although they are supported for
backwards compatiblity.

Fix macro-levels so it actually count descent levels; a new
macro-tokens limit introduced for the actual token limit.

Slightly simplify the limits code.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2019-08-10 01:46:58 -07:00
H. Peter Anvin
8960e1bc83 Remove #includes already provided by "compiler.h"
"compiler.h" already includes a bunch of common include files. There
is absolutely no reason to duplicate them in individual files, and in
fact it robs us of central control of how these files are used.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-12-27 12:45:44 -08:00
H. Peter Anvin
11599f49da Factor out size tokens and annotate with the corresponding size
There is space in the token table to explicitly encode the size
corresponding to a size token. We might as well do so...

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-12-24 12:45:58 -08:00
H. Peter Anvin (Intel)
e55d03dd47 Clean up the handling of various passes
The use of pass0, pass1, pass2, and "pass" passed as an argument is
really confusing and already caused a severe bug in the 2.14.01
release cycle. Clean them up and be far more explicit about what
various passes mean.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2018-12-18 11:14:59 -08:00
H. Peter Anvin (Intel)
9df075595e Restore the ability to have ? in identifiers, except ? itself
? in identifiers turns out to be used in the field even in non-TASM
mode. Resolve this by allowing it in an identifier still, but treat
'?' by itself the same as we would a keyword, meaning that it needs to
be separated from other identifier characters.

In other words:

	a ? b : c	; conditional expression
	a?b:c		; seg:off expression seg = a?b, off = c

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2018-12-14 00:57:05 -08:00
H. Peter Anvin (Intel)
6bde2ed880 errors: change the severity parameter from "int" to "errflags"
Change the severity parameter to the error function from "int" to an
unsigned typedef, currently uint32_t.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2018-12-13 19:42:38 -08:00
H. Peter Anvin
1aa794527f Move srcfile.c to asm/
srcfile.c is not used by anything outside asm/, so move it there.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-12-10 23:03:04 -08:00
H. Peter Anvin
1350620bf1 ctype: create our own ctype table
Create our own ctype table where we can do the tests we want to do
cheaply, instead of calling ctype functions and then adding additional
tests all over the code.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-11-28 14:55:58 -08:00
H. Peter Anvin
9953992686 nasm.h: fix definition of isidchar()
isidchar() also should accept digits.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-11-28 13:02:12 -08:00
H. Peter Anvin
a074339854 nasm.h: replace is*() macros with inline functions, '?' for TASM mode
Replace all the is*() macros with inline functions. Disallow '?' in
identifiers unless we are in TASM mode.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
is allowed in
2018-11-28 11:53:05 -08:00
H. Peter Anvin
a0ed5b3ffa Merge branch 'master' of ssh://repo.or.cz/nasm 2018-11-28 09:56:15 -08:00
Cyrill Gorcunov
8c0666b0e6 preproc: Pass include paths as strlist
Instead of copying data just reuse already
allocated paths.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2018-11-24 14:33:48 +03:00
Cyrill Gorcunov
b7bb5acdaf strlist: Rework to drop type
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2018-11-24 13:24:09 +03:00
H. Peter Anvin (Intel)
f7106d06e4 strlist: use a hash table
Use a hash table to enforce uniqueness in a string list. It is still
an ordered list, however, and can be walked in insertion order.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2018-10-25 12:33:58 -07:00
Cyrill Gorcunov
f7b44f6092 Merge branch 'nasm-2.14.xx'
* nasm-2.14.xx: (83 commits)
  NASM 2.14rc16
  doc: Update changes
  preproc: expand_smacro -- Fix nil dereference on error path
  eval: Eliminate division by zero
  doc: Update changes
  opflags: Convert is_class and is_reg_class to helpers
  preproc: Fix out of range access in expand mmacro
  doc: Update changes
  parser: Fix sigsegv on certain equ instruction parsing
  labels: Make sure nil label is never passed
  labels: Don't nil dereference if no label provided
  macho: Add warning message in macho_output()
  macho/reloc: Fix addr size sensitive conditions
  macho/reloc: Fix macho_output() to get the offset adjustments by add_reloc()
  macho/reloc: Fixed offset adjustment in add_reloc()
  macho/reloc: Allow absolute relocation when forcing a symbol reference
  macho/reloc: Adjust SUB relocation information
  macho/reloc: Fixed in handling GOT/GOTLOAD/TLV relocations
  macho/reloc: Simplified relocation for REL/BRANCH
  macho/sym: Record initial symbol number always
  ...

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
2018-10-15 22:58:13 +03:00
Chang S. Bae
a578634b61 optimization: Introduce new flag to turn-off selectively
While configuring optimization in a level is conventional,
a certain optimization tends to conflict with some pragma.

For example, jump match conflicts with Mach-O's
"subsections-via-symbols" macro.

This configurability will workaround such conflicts.

Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
2018-08-16 00:01:31 +03:00
H. Peter Anvin (Intel)
d644119ded subsections: don't lose the offset in the parent section
We don't want to lose the offset into the parent section when we
create a subsection, at least not for the MachO backend which is
currently the only user of subsections. Allow ofmt->herelabel() to set
a flag to copy the section offset from the previous section.

Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
2018-06-27 20:20:21 -07:00
H. Peter Anvin
f7be8b3253 pragma: define a hander for generic output (and debug) pragmas
There are cases where we may want to implement generic pragmas, while
still make them selective based on output and/or debug formats.
Initially, use this for the prefix/suffix options.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Chang Seok Bae <chang.seok.bae@intel.com>
2018-06-18 11:34:33 -07:00
H. Peter Anvin
8eb3096f7a nasm.h: remove unused constants
Remove unused constants for prefix and suffix, long since obsolete.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2018-06-18 11:12:49 -07:00
H. Peter Anvin
3bb1dd0bee eval: add spaceship operator <=>
<=> returns -1, 0, or 1 depending on the ordering of two values.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-06-15 18:46:11 -07:00
H. Peter Anvin
94adf7d765 eval: add support for signed shift operators <<< and >>>
Add support for signed shifts.  The operators are <<< and >>>,
although the former is (inherently) idntical to <<.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-06-15 18:37:32 -07:00
H. Peter Anvin
79561027a0 Make limits 64 bits, add globallines limit to configurable limits
Make all limit counters 64 bits, in case someone really has a usage
for an insanely large program. The globallines limit was omitted, add
it to the list of configurable limits.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-06-15 17:57:15 -07:00
H. Peter Anvin
a3d96d02b0 Make limits 64 bits, add globallines limit to configurable limits
Make all limit counters 64 bits, in case someone really has a usage
for an insanely large program. The globallines limit was omitted, add
it to the list of configurable limits.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2018-06-15 17:56:25 -07:00
H. Peter Anvin
e803010163 nasm.h: remove unused constants
Remove unused constants for prefix and suffix, long since obsolete.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2018-06-14 20:28:57 -07:00
H. Peter Anvin
29695c85fb labels: add a subsection field available for backend use
Allow the subsection to store a subsection value directly in the
label, rather than having to do strange encoding hacks.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2018-06-14 17:04:32 -07:00
H. Peter Anvin
987dc9c9db Make any execution limit configurable, add eval limit
Make any "deadman"-style execution limit configurable on the command
line (--limit-foo) or via a pragma (%pragma limit foo).

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2018-06-12 13:54:42 -07:00