projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f10eff58 | 1 | /* setjmp for ARM. |
| 5de92c17 | 2 | Copyright (C) 1997, 1998, 2005, 2006, 2008 Free Software Foundation, Inc. |
| f10eff58 DJ |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 22423683 JM |
15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free | |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 18 | 02111-1307 USA. */ | |
| f10eff58 DJ |
19 | |
| 20 | #include <sysdep.h> | |
| 21 | #define _SETJMP_H | |
| 22 | #define _ASM | |
| 23 | #include <bits/setjmp.h> | |
| f10eff58 DJ |
24 | #include <rtld-global-offsets.h> |
| 25 | ||
| 26 | ENTRY (__sigsetjmp) | |
| 27 | mov ip, r0 | |
| 28 | ||
| 29 | /* Save registers */ | |
| 30 | stmia ip!, {v1-v6, sl, fp, sp, lr} | |
| 31 | ||
| 32 | /* Check if we have a VFP unit. */ | |
| 33 | #ifdef IS_IN_rtld | |
| 34 | ldr a3, 1f | |
| 35 | ldr a4, Lrtld_local_ro | |
| 36 | 0: add a3, pc, a3 | |
| 37 | add a3, a3, a4 | |
| 38 | ldr a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET] | |
| 39 | #else | |
| 40 | #ifdef PIC | |
| 41 | ldr a3, 1f | |
| 42 | ldr a4, Lrtld_global_ro | |
| 43 | 0: add a3, pc, a3 | |
| 44 | ldr a3, [a3, a4] | |
| 45 | ldr a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET] | |
| 46 | #else | |
| 47 | ldr a3, Lhwcap | |
| 48 | ldr a3, [a3, #0] | |
| 49 | #endif | |
| 50 | #endif | |
| 51 | ||
| 4b860fb9 | 52 | tst a3, #HWCAP_ARM_VFP |
| f10eff58 DJ |
53 | beq Lno_vfp |
| 54 | ||
| fbc4c20a AS |
55 | /* Store the VFP registers. |
| 56 | Don't use VFP instructions directly because this code | |
| 57 | is used in non-VFP multilibs. */ | |
| 58 | /* Following instruction is vstmia ip!, {d8-d15}. */ | |
| 59 | stc p11, cr8, [ip], #64 | |
| f10eff58 | 60 | /* Store the floating-point status register. */ |
| fbc4c20a AS |
61 | /* Following instruction is vmrs a4, fpscr. */ |
| 62 | mrc p10, 7, a4, cr1, cr0, 0 | |
| 63 | str a4, [ip], #4 | |
| f10eff58 DJ |
64 | Lno_vfp: |
| 65 | ||
| 4b860fb9 DJ |
66 | tst a3, #HWCAP_ARM_IWMMXT |
| 67 | beq Lno_iwmmxt | |
| 68 | ||
| 69 | /* Save the call-preserved iWMMXt registers. */ | |
| 70 | /* Following instructions are wstrd wr10, [ip], #8 (etc.) */ | |
| 71 | stcl p1, cr10, [r12], #8 | |
| 72 | stcl p1, cr11, [r12], #8 | |
| 73 | stcl p1, cr12, [r12], #8 | |
| 74 | stcl p1, cr13, [r12], #8 | |
| 75 | stcl p1, cr14, [r12], #8 | |
| 76 | stcl p1, cr15, [r12], #8 | |
| 77 | Lno_iwmmxt: | |
| 78 | ||
| f10eff58 DJ |
79 | /* Make a tail call to __sigjmp_save; it takes the same args. */ |
| 80 | B PLTJMP(C_SYMBOL_NAME(__sigjmp_save)) | |
| 81 | ||
| 82 | #ifdef IS_IN_rtld | |
| 83 | 1: .long _GLOBAL_OFFSET_TABLE_ - 0b - 8 | |
| 84 | Lrtld_local_ro: | |
| 85 | .long C_SYMBOL_NAME(_rtld_local_ro)(GOTOFF) | |
| 86 | #else | |
| 87 | #ifdef PIC | |
| 88 | 1: .long _GLOBAL_OFFSET_TABLE_ - 0b - 8 | |
| 89 | Lrtld_global_ro: | |
| 90 | .long C_SYMBOL_NAME(_rtld_global_ro)(GOT) | |
| 91 | #else | |
| 92 | Lhwcap: | |
| 93 | .long C_SYMBOL_NAME(_dl_hwcap) | |
| 94 | #endif | |
| 95 | #endif | |
| 96 | ||
| 97 | END (__sigsetjmp) | |
| 98 | ||
| 5de92c17 | 99 | hidden_def (__sigsetjmp) |