90b1ccff86
Currently, NASM always issues as an unknown symbol any symbol declared EXTERN. This is highly undesirable when using common header files, as it might cause the linker to pull in a bunch of unnecessary modules, depending on how smart the linker is. Add a new REQUIRED directive which behaves like the old EXTERN, for the use cases which might still need this behavior. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
110 lines
3.1 KiB
Text
110 lines
3.1 KiB
Text
;; --------------------------------------------------------------------------
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;;
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;; Copyright 1996-2017 The NASM Authors - All Rights Reserved
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;; See the file AUTHORS included with the NASM distribution for
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;; the specific copyright holders.
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;;
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;; Redistribution and use in source and binary forms, with or without
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;; modification, are permitted provided that the following
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;; conditions are met:
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;;
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;; * Redistributions of source code must retain the above copyright
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;; notice, this list of conditions and the following disclaimer.
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;; * Redistributions in binary form must reproduce the above
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;; copyright notice, this list of conditions and the following
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;; disclaimer in the documentation and/or other materials provided
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;; with the distribution.
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;;
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;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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;; CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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;; INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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;; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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;; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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;; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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;; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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;; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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;; OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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;; EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;
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;; --------------------------------------------------------------------------
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;;
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;; List of global NASM directives and pragma operations codes
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;;
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;; ALL directives, including backend-specific, need to be added here.
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;;
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;; %pragma operation keywords (the second word, after facility) MAY
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;; be added here too to assist in parsing, but it is not required.
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;; See the definition of struct pragma in include/nasm.h.
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;;
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;; The same keyword can be used as a directive and as a pragma
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;; operation, or as pragma operations in different namespaces. The
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;; same D_ constant will be used for both, and this is perfectly
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;; acceptable.
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;;
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;; In the future, this will be turned into a general list of keywords
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;; to be parsed in special contexts.
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;;
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; --- General configuration
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#name directive
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#prefix D_
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#errval D_unknown
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#header directiv.h
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; --- Special enum values
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#special none = 0 ; Must be zero
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#special unknown
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#special corrupt
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; --- Global directives
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absolute
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bits
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common
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cpu
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debug
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default
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extern
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float
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global
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static
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list
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section
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segment
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warning
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sectalign
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pragma
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required
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; --- Format-specific directives
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export ; outcoff, outobj
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group ; outobj
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import ; outobj
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library ; outrdf2
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map ; outbin
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module ; outrdf2
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org ; outbin
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osabi ; outelf
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safeseh ; outcoff
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uppercase ; outieee, outobj
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; --- Assembler pragmas
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prefix
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suffix
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gprefix
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gsuffix
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lprefix
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lsuffix
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limit
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; --- Listing pragmas
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options
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; --- Backend pragmas
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subsections_via_symbols ; macho
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no_dead_strip ; macho
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maxdump ; dbg
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nodepend ; obj
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noseclabels ; dbg
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