2 * This software is part of the SBCL system. See the README file for
5 * This software is derived from the CMU CL system, which was
6 * written at Carnegie Mellon University and released into the
7 * public domain. The software is in the public domain and is
8 * provided with absolutely no warranty. See the COPYING and CREDITS
9 * files for more information.
20 * 0x00000000->0x0E000000 224M C program and memory allocation.
21 * 0x0E000000->0x10000000 32M Foreign segment.
22 * 0x10000000->0x20000000 256M Read-Only Space.
23 * 0x20000000->0x30000000 256M Reserved for shared libraries.
24 * 0x30000000->0x38000000 128M Static Space.
25 * 0x38000000->0x40000000 128M Binding stack growing up.
26 * 0x40000000->0x48000000 128M Control stack growing down.
27 * 0x48000000->0xC8000000 2GB Dynamic Space.
28 * 0xE0000000-> 256M C stack - Alien stack.
30 * Linux: Note that this map has some problems and requires some further
31 * development so is not implemented below.
32 * 0x00000000->0x08000000 128M Unused.
33 * 0x08000000->0x10000000 128M C program and memory allocation.
34 * 0x10000000->0x20000000 256M Read-Only Space.
35 * 0x20000000->0x28000000 128M Binding stack growing up.
36 * 0x28000000->0x38000000 256M Static Space.
37 * 0x38000000->0x40000000 128M Control stack growing down.
38 * 0x40000000->0x48000000 128M Reserved for shared libraries.
39 * 0x48000000->0xB8000000 1.75G Dynamic Space.
41 * FIXME: There's something wrong with addressing maps which are so
42 * brittle that they can be commented as fixed addresses. Try to
43 * parameterize these so they can be set at build time.
46 #if defined(__FreeBSD__) || defined(__OpenBSD__)
47 #define READ_ONLY_SPACE_START (0x10000000)
48 #define READ_ONLY_SPACE_SIZE (0x0ffff000) /* 256MB - 1 page */
50 #define STATIC_SPACE_START (0x30000000)
51 #define STATIC_SPACE_SIZE (0x07fff000) /* 128M - 1 page */
53 #define BINDING_STACK_START (0x38000000)
54 #define BINDING_STACK_SIZE (0x07fff000) /* 128MB - 1 page */
56 #define CONTROL_STACK_START (0x40000000)
57 #define CONTROL_STACK_SIZE (0x08000000) /* 128MB */
59 #define DYNAMIC_0_SPACE_START (0x48000000)
61 #define DYNAMIC_SPACE_SIZE (0x40000000) /* May be up to 2GB */
63 #define DYNAMIC_SPACE_SIZE (0x04000000) /* 64MB */
67 /* FIXME: It's gross to have numbers like 0x50000000 wired into the
68 * code in multiple places like this. (Not only does this file know
69 * about it, but Lisp code knows about it, because Lisp code is able
70 * to generate absolute addresses for all the static symbols even
71 * before it's read the map file.) I don't know whether I should
72 * actually *fix* this, but I should at least document it some with a
73 * KLUDGE marker. And it might even be fixable, by putting all this
74 * memory space arbitrariness into an architecture-dependent Lisp
75 * file. If so, perhaps I should write somewhere in a "design
76 * principles" or "coding principles" file that information like this
77 * always flows from Lisp code to C code, through sbcl.h. */
79 #define READ_ONLY_SPACE_START (0x01000000)
80 #define READ_ONLY_SPACE_SIZE (0x02800000) /* 40MB */
82 #define STATIC_SPACE_START (0x05000000)
83 #define STATIC_SPACE_SIZE (0x02fff000) /* 48MB - 1 page */
85 #define BINDING_STACK_START (0x60000000)
86 #define BINDING_STACK_SIZE (0x07fff000) /* 128MB - 1 page */
88 #define CONTROL_STACK_START (0x50000000)
89 #define CONTROL_STACK_SIZE (0x07fff000) /* 128MB - 1 page */
91 #define DYNAMIC_0_SPACE_START (0x09000000)
93 #define DYNAMIC_SPACE_SIZE (0x20000000) /* 512MB */
95 #define DYNAMIC_SPACE_SIZE (0x04000000) /* 64MB */
99 #define CONTROL_STACK_END (CONTROL_STACK_START + CONTROL_STACK_SIZE)
101 /* Note that GENCGC only uses dynamic_space 0. */
102 #define DYNAMIC_1_SPACE_START (DYNAMIC_0_SPACE_START + DYNAMIC_SPACE_SIZE)