summaryrefslogtreecommitdiffstatshomepage
path: root/src/osd/sdl/sdlmisc_macosx.c
blob: 7cbd3b86cfdfaf0ea33a678310e6607ba380067d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
//============================================================
//
//  sdlos_*.c - OS specific low level code
//
//  Copyright (c) 1996-2010, Nicola Salmoria and the MAME Team.
//  Visit http://mamedev.org for licensing and usage restrictions.
//
//  SDLMAME by Olivier Galibert and R. Belmont
//
//============================================================

// standard sdl header
#include <SDL/SDL.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <signal.h>
#ifdef MAME_DEBUG
#include <unistd.h>
#endif


// MAME headers
#include "osdcore.h"

//============================================================
//  osd_alloc_executable
//
//  allocates "size" bytes of executable memory.  this must take
//  things like NX support into account.
//============================================================

void *osd_alloc_executable(size_t size)
{
	return (void *)mmap(0, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_ANON|MAP_SHARED, -1, 0);
}

//============================================================
//  osd_free_executable
//
//  frees memory allocated with osd_alloc_executable
//============================================================

void osd_free_executable(void *ptr, size_t size)
{
	munmap(ptr, size);
}

//============================================================
//  osd_break_into_debugger
//============================================================

void osd_break_into_debugger(const char *message)
{
	#ifdef MAME_DEBUG
	printf("MAME exception: %s\n", message);
	printf("Attempting to fall into debugger\n");
	kill(getpid(), SIGTRAP);
	#else
	printf("Ignoring MAME exception: %s\n", message);
	#endif
}