The Tor Browser / file comparison
comparison: xpcom/reflect/xptcall/src/md/unix/xptcinvoke_sparc_netbsd.cpp
xpcom/reflect/xptcall/src/md/unix/xptcinvoke_sparc_netbsd.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:c1762fe0e0aa |
|---|---|
| 1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* Platform specific code to invoke XPCOM methods on native objects */ | |
| 7 | |
| 8 #include "xptcprivate.h" | |
| 9 | |
| 10 /* solaris defines __sparc for workshop compilers and | |
| 11 linux defines __sparc__ */ | |
| 12 | |
| 13 #if !defined(__sparc) && !defined(__sparc__) | |
| 14 #error "This code is for Sparc only" | |
| 15 #endif | |
| 16 | |
| 17 typedef unsigned nsXPCVariant; | |
| 18 | |
| 19 extern "C" uint32_t | |
| 20 invoke_count_words(uint32_t paramCount, nsXPTCVariant* s) | |
| 21 { | |
| 22 uint32_t result = 0; | |
| 23 for(uint32_t i = 0; i < paramCount; i++, s++) | |
| 24 { | |
| 25 if(s->IsPtrData()) | |
| 26 { | |
| 27 result++; | |
| 28 continue; | |
| 29 } | |
| 30 switch(s->type) | |
| 31 { | |
| 32 case nsXPTType::T_I8 : | |
| 33 case nsXPTType::T_I16 : | |
| 34 case nsXPTType::T_I32 : | |
| 35 result++; | |
| 36 break; | |
| 37 case nsXPTType::T_I64 : | |
| 38 result+=2; | |
| 39 break; | |
| 40 case nsXPTType::T_U8 : | |
| 41 case nsXPTType::T_U16 : | |
| 42 case nsXPTType::T_U32 : | |
| 43 result++; | |
| 44 break; | |
| 45 case nsXPTType::T_U64 : | |
| 46 result+=2; | |
| 47 break; | |
| 48 case nsXPTType::T_FLOAT : | |
| 49 result++; | |
| 50 break; | |
| 51 case nsXPTType::T_DOUBLE : | |
| 52 result+=2; | |
| 53 break; | |
| 54 case nsXPTType::T_BOOL : | |
| 55 case nsXPTType::T_CHAR : | |
| 56 case nsXPTType::T_WCHAR : | |
| 57 result++; | |
| 58 break; | |
| 59 default: | |
| 60 // all the others are plain pointer types | |
| 61 result++; | |
| 62 break; | |
| 63 } | |
| 64 } | |
| 65 // nuts, I know there's a cooler way of doing this, but it's late | |
| 66 // now and it'll probably come to me in the morning. | |
| 67 if (result & 0x3) result += 4 - (result & 0x3); // ensure q-word alignment | |
| 68 return result; | |
| 69 } | |
| 70 | |
| 71 extern "C" uint32_t | |
| 72 invoke_copy_to_stack(uint32_t* d, uint32_t paramCount, nsXPTCVariant* s) | |
| 73 { | |
| 74 /* | |
| 75 We need to copy the parameters for this function to locals and use them | |
| 76 from there since the parameters occupy the same stack space as the stack | |
| 77 we're trying to populate. | |
| 78 */ | |
| 79 uint32_t *l_d = d; | |
| 80 nsXPTCVariant *l_s = s; | |
| 81 uint32_t l_paramCount = paramCount; | |
| 82 uint32_t regCount = 0; // return the number of registers to load from the stack | |
| 83 | |
| 84 typedef struct { | |
| 85 uint32_t hi; | |
| 86 uint32_t lo; | |
| 87 } DU; // have to move 64 bit entities as 32 bit halves since | |
| 88 // stack slots are not guaranteed 16 byte aligned | |
| 89 | |
| 90 for(uint32_t i = 0; i < l_paramCount; i++, l_d++, l_s++) | |
| 91 { | |
| 92 if (regCount < 5) regCount++; | |
| 93 if(l_s->IsPtrData()) | |
| 94 { | |
| 95 if(l_s->type == nsXPTType::T_JSVAL) | |
| 96 { | |
| 97 // On SPARC, we need to pass a pointer to HandleValue | |
| 98 *((void**)l_d) = &l_s->ptr; | |
| 99 } else | |
| 100 { | |
| 101 *((void**)l_d) = l_s->ptr; | |
| 102 } | |
| 103 continue; | |
| 104 } | |
| 105 switch(l_s->type) | |
| 106 { | |
| 107 case nsXPTType::T_I8 : *((int32_t*) l_d) = l_s->val.i8; break; | |
| 108 case nsXPTType::T_I16 : *((int32_t*) l_d) = l_s->val.i16; break; | |
| 109 case nsXPTType::T_I32 : *((int32_t*) l_d) = l_s->val.i32; break; | |
| 110 case nsXPTType::T_I64 : | |
| 111 case nsXPTType::T_U64 : | |
| 112 case nsXPTType::T_DOUBLE : *((uint32_t*) l_d++) = ((DU *)l_s)->hi; | |
| 113 if (regCount < 5) regCount++; | |
| 114 *((uint32_t*) l_d) = ((DU *)l_s)->lo; | |
| 115 break; | |
| 116 case nsXPTType::T_U8 : *((uint32_t*) l_d) = l_s->val.u8; break; | |
| 117 case nsXPTType::T_U16 : *((uint32_t*) l_d) = l_s->val.u16; break; | |
| 118 case nsXPTType::T_U32 : *((uint32_t*) l_d) = l_s->val.u32; break; | |
| 119 case nsXPTType::T_FLOAT : *((float*) l_d) = l_s->val.f; break; | |
| 120 case nsXPTType::T_BOOL : *((uint32_t*) l_d) = l_s->val.b; break; | |
| 121 case nsXPTType::T_CHAR : *((uint32_t*) l_d) = l_s->val.c; break; | |
| 122 case nsXPTType::T_WCHAR : *((int32_t*) l_d) = l_s->val.wc; break; | |
| 123 default: | |
| 124 // all the others are plain pointer types | |
| 125 *((void**)l_d) = l_s->val.p; | |
| 126 break; | |
| 127 } | |
| 128 } | |
| 129 return regCount; | |
| 130 } | |
| 131 |
