| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 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 source tree. |
| 6 | */ |
| 7 | |
| 8 | #include <errno.h> |
| 9 | |
| 10 | struct globals; |
| 11 | |
| 12 | #ifndef GCC_COMBINE |
| 13 | |
| 14 | /* We cheat here. It is declared as const ptr in libbb.h, |
| 15 | * but here we make it live in R/W memory */ |
| 16 | struct globals *ptr_to_globals; |
| 17 | |
| 18 | #ifdef __GLIBC__ |
| 19 | int *bb_errno; |
| 20 | #endif |
| 21 | |
| 22 | |
| 23 | #else |
| 24 | |
| 25 | |
| 26 | /* gcc -combine will see through and complain */ |
| 27 | /* Using alternative method which is more likely to break |
| 28 | * on weird architectures, compilers, linkers and so on */ |
| 29 | struct globals *const ptr_to_globals __attribute__ ((section (".data"))); |
| 30 | |
| 31 | #ifdef __GLIBC__ |
| 32 | int *const bb_errno __attribute__ ((section (".data"))); |
| 33 | #endif |
| 34 | |
| 35 | #endif |