1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PPC64_VDSO_H__ 3 #define __PPC64_VDSO_H__ 4 5 #ifdef __KERNEL__ 6 7 /* Default link addresses for the vDSOs */ 8 #define VDSO32_LBASE 0x0 9 #define VDSO64_LBASE 0x0 10 11 /* Default map addresses for 32bit vDSO */ 12 #define VDSO32_MBASE 0x100000 13 14 #define VDSO_VERSION_STRING LINUX_2.6.15 15 16 /* Define if 64 bits VDSO has procedure descriptors */ 17 #undef VDS64_HAS_DESCRIPTORS 18 19 #ifndef __ASSEMBLY__ 20 21 /* Offsets relative to thread->vdso_base */ 22 extern unsigned long vdso64_rt_sigtramp; 23 extern unsigned long vdso32_sigtramp; 24 extern unsigned long vdso32_rt_sigtramp; 25 26 int vdso_getcpu_init(void); 27 28 #else /* __ASSEMBLY__ */ 29 30 #ifdef __VDSO64__ 31 #ifdef VDS64_HAS_DESCRIPTORS 32 #define V_FUNCTION_BEGIN(name) \ 33 .globl name; \ 34 .section ".opd","a"; \ 35 .align 3; \ 36 name: \ 37 .quad .name,.TOC.@tocbase,0; \ 38 .previous; \ 39 .globl .name; \ 40 .type .name,@function; \ 41 .name: \ 42 43 #define V_FUNCTION_END(name) \ 44 .size .name,.-.name; 45 46 #define V_LOCAL_FUNC(name) (.name) 47 48 #else /* VDS64_HAS_DESCRIPTORS */ 49 50 #define V_FUNCTION_BEGIN(name) \ 51 .globl name; \ 52 name: \ 53 54 #define V_FUNCTION_END(name) \ 55 .size name,.-name; 56 57 #define V_LOCAL_FUNC(name) (name) 58 59 #endif /* VDS64_HAS_DESCRIPTORS */ 60 #endif /* __VDSO64__ */ 61 62 #ifdef __VDSO32__ 63 64 #define V_FUNCTION_BEGIN(name) \ 65 .globl name; \ 66 .type name,@function; \ 67 name: \ 68 69 #define V_FUNCTION_END(name) \ 70 .size name,.-name; 71 72 #define V_LOCAL_FUNC(name) (name) 73 74 #endif /* __VDSO32__ */ 75 76 #endif /* __ASSEMBLY__ */ 77 78 #endif /* __KERNEL__ */ 79 80 #endif /* __PPC64_VDSO_H__ */ 81