mirror of
https://github.com/netwide-assembler/nasm.git
synced 2024-12-15 09:09:58 +08:00
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>
57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
/* ----------------------------------------------------------------------- *
|
|
*
|
|
* Copyright 1996-2018 The NASM Authors - All Rights Reserved
|
|
* See the file AUTHORS included with the NASM distribution for
|
|
* the specific copyright holders.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* nasmlib.c library routines for the Netwide Assembler
|
|
*/
|
|
|
|
#include "compiler.h"
|
|
#include "nasm.h"
|
|
#include "nasmlib.h"
|
|
#include "insns.h"
|
|
|
|
static int32_t next_seg = 0;
|
|
void seg_alloc_reset(void)
|
|
{
|
|
next_seg = 0;
|
|
}
|
|
|
|
int32_t seg_alloc(void)
|
|
{
|
|
int32_t this_seg = next_seg;
|
|
|
|
next_seg += 2;
|
|
|
|
return this_seg;
|
|
}
|