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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>
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Implement the MachO do_dead_strip directive, which sets a flag on the
corresponding section. This as well as subsections_by_symbols are
reimplemented as pragmas; if someone uses the predefined macro they
still get the expected behavior.
However, this allows someone to write:
%pragma macho subsections_by_symbols
... and have it ignored if compiling for, say, ELF.
Also, implement the following section attributes:
zerofill, no_dead_strip, live_support, strip_static_syms
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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subsections_via_symbols is plural for both nouns.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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Use %imacro instead of %macro for ELF "osabi" and Mach-O
"subsections_by_symbols".
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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The "subsection_via_symbols" directive simply sets a flag in the
Mach-O file header.
Requested in BR 3392367.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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*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>
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These are definitely overly restrictive, need auditing to pare them
down to proper BSD licensing.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Somehow the win32 and win64 aliases got listed on Mach-O, not on
COFF. This doesn't have any effect on the current code, but might in
the future. Correct.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Move the handling of "extra" macros (i.e. output format macros) into
the macros.pl mechanism. This allows us to change the format of the
internal macro store in the future - e.g. to a single byte store
without redundant pointers.
Also, stop using indicies into a long array when there is no good
reason to not just use different arrays.
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