Contents of /tags/mkinitrd-6_3_2/busybox/shell/ash_ptr_hack.c
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Tue Sep 14 20:33:28 2010 UTC (14 years ago) by niro
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File size: 982 byte(s)
Tue Sep 14 20:33:28 2010 UTC (14 years ago) by niro
File MIME type: text/plain
File size: 982 byte(s)
tagged 'mkinitrd-6_3_2'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Copyright (C) 2008 by Denys Vlasenko <vda.linux@googlemail.com> |
4 | * |
5 | * Licensed under GPLv2, see file LICENSE in this tarball for details. |
6 | */ |
7 | |
8 | struct globals_misc; |
9 | struct globals_memstack; |
10 | struct globals_var; |
11 | |
12 | #ifndef GCC_COMBINE |
13 | |
14 | /* We cheat here. They are declared as const ptr in ash.c, |
15 | * but here we make them live in R/W memory */ |
16 | struct globals_misc *ash_ptr_to_globals_misc; |
17 | struct globals_memstack *ash_ptr_to_globals_memstack; |
18 | struct globals_var *ash_ptr_to_globals_var; |
19 | |
20 | #else |
21 | |
22 | /* gcc -combine will see through and complain */ |
23 | /* Using alternative method which is more likely to break |
24 | * on weird architectures, compilers, linkers and so on */ |
25 | struct globals_misc *const ash_ptr_to_globals_misc __attribute__ ((section (".data"))); |
26 | struct globals_memstack *const ash_ptr_to_globals_memstack __attribute__ ((section (".data"))); |
27 | struct globals_var *const ash_ptr_to_globals_var __attribute__ ((section (".data"))); |
28 | |
29 | #endif |