892c4818ce
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>
64 lines
2.7 KiB
C
64 lines
2.7 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2018 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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#ifndef NASM_OUTLIB_H
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#define NASM_OUTLIB_H
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#include "nasm.h"
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#include "error.h"
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uint64_t realsize(enum out_type type, uint64_t size);
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/* Do-nothing versions of some output routines */
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enum directive_result
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null_directive(enum directive directive, char *value, int pass);
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void null_sectalign(int32_t seg, unsigned int value);
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void null_reset(void);
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/* Do-nothing versions of all the debug routines */
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void null_debug_init(void);
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void null_debug_linenum(const char *filename, int32_t linenumber,
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int32_t segto);
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void null_debug_deflabel(char *name, int32_t segment, int64_t offset,
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int is_global, char *special);
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void null_debug_directive(const char *directive, const char *params);
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void null_debug_typevalue(int32_t type);
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void null_debug_output(int type, void *param);
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void null_debug_cleanup(void);
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extern const struct dfmt * const null_debug_arr[2];
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/* Wrapper for unported backends */
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void nasm_do_legacy_output(const struct out_data *data);
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#endif /* NASM_OUTLIB_H */
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