xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp@129ffea94266 (annotated)
xpcom/reflect/xptcall/src/md/unix/xptcinvoke_ppc64_linux.cpp
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | // Platform specific code to invoke XPCOM methods on native objects |
| michael@0 | 7 | |
| michael@0 | 8 | // The purpose of NS_InvokeByIndex() is to map a platform |
| michael@0 | 9 | // independent call to the platform ABI. To do that, |
| michael@0 | 10 | // NS_InvokeByIndex() has to determine the method to call via vtable |
| michael@0 | 11 | // access. The parameters for the method are read from the |
| michael@0 | 12 | // nsXPTCVariant* and prepared for the native ABI. |
| michael@0 | 13 | |
| michael@0 | 14 | // The PowerPC64 platform ABI can be found here: |
| michael@0 | 15 | // http://www.freestandards.org/spec/ELF/ppc64/ |
| michael@0 | 16 | // and in particular: |
| michael@0 | 17 | // http://www.freestandards.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#FUNC-CALL |
| michael@0 | 18 | |
| michael@0 | 19 | #include <stdio.h> |
| michael@0 | 20 | #include "xptcprivate.h" |
| michael@0 | 21 | |
| michael@0 | 22 | // 8 integral parameters are passed in registers, not including 'that' |
| michael@0 | 23 | #define GPR_COUNT 7 |
| michael@0 | 24 | |
| michael@0 | 25 | // 8 floating point parameters are passed in registers, floats are |
| michael@0 | 26 | // promoted to doubles when passed in registers |
| michael@0 | 27 | #define FPR_COUNT 13 |
| michael@0 | 28 | |
| michael@0 | 29 | extern "C" uint32_t |
| michael@0 | 30 | invoke_count_words(uint32_t paramCount, nsXPTCVariant* s) |
| michael@0 | 31 | { |
| michael@0 | 32 | return uint32_t(((paramCount * 2) + 3) & ~3); |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | extern "C" void |
| michael@0 | 36 | invoke_copy_to_stack(uint64_t* gpregs, |
| michael@0 | 37 | double* fpregs, |
| michael@0 | 38 | uint32_t paramCount, |
| michael@0 | 39 | nsXPTCVariant* s, |
| michael@0 | 40 | uint64_t* d) |
| michael@0 | 41 | { |
| michael@0 | 42 | uint64_t tempu64; |
| michael@0 | 43 | |
| michael@0 | 44 | for(uint32_t i = 0; i < paramCount; i++, s++) { |
| michael@0 | 45 | if(s->IsPtrData()) |
| michael@0 | 46 | tempu64 = (uint64_t) s->ptr; |
| michael@0 | 47 | else { |
| michael@0 | 48 | switch(s->type) { |
| michael@0 | 49 | case nsXPTType::T_FLOAT: break; |
| michael@0 | 50 | case nsXPTType::T_DOUBLE: break; |
| michael@0 | 51 | case nsXPTType::T_I8: tempu64 = s->val.i8; break; |
| michael@0 | 52 | case nsXPTType::T_I16: tempu64 = s->val.i16; break; |
| michael@0 | 53 | case nsXPTType::T_I32: tempu64 = s->val.i32; break; |
| michael@0 | 54 | case nsXPTType::T_I64: tempu64 = s->val.i64; break; |
| michael@0 | 55 | case nsXPTType::T_U8: tempu64 = s->val.u8; break; |
| michael@0 | 56 | case nsXPTType::T_U16: tempu64 = s->val.u16; break; |
| michael@0 | 57 | case nsXPTType::T_U32: tempu64 = s->val.u32; break; |
| michael@0 | 58 | case nsXPTType::T_U64: tempu64 = s->val.u64; break; |
| michael@0 | 59 | case nsXPTType::T_BOOL: tempu64 = s->val.b; break; |
| michael@0 | 60 | case nsXPTType::T_CHAR: tempu64 = s->val.c; break; |
| michael@0 | 61 | case nsXPTType::T_WCHAR: tempu64 = s->val.wc; break; |
| michael@0 | 62 | default: tempu64 = (uint64_t) s->val.p; break; |
| michael@0 | 63 | } |
| michael@0 | 64 | } |
| michael@0 | 65 | |
| michael@0 | 66 | if (!s->IsPtrData() && s->type == nsXPTType::T_DOUBLE) { |
| michael@0 | 67 | if (i < FPR_COUNT) |
| michael@0 | 68 | fpregs[i] = s->val.d; |
| michael@0 | 69 | else |
| michael@0 | 70 | *(double *)d = s->val.d; |
| michael@0 | 71 | } |
| michael@0 | 72 | else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) { |
| michael@0 | 73 | if (i < FPR_COUNT) { |
| michael@0 | 74 | fpregs[i] = s->val.f; // if passed in registers, floats are promoted to doubles |
| michael@0 | 75 | } else { |
| michael@0 | 76 | float *p = (float *)d; |
| michael@0 | 77 | #ifndef __LITTLE_ENDIAN__ |
| michael@0 | 78 | p++; |
| michael@0 | 79 | #endif |
| michael@0 | 80 | *p = s->val.f; |
| michael@0 | 81 | } |
| michael@0 | 82 | } |
| michael@0 | 83 | else { |
| michael@0 | 84 | if (i < GPR_COUNT) |
| michael@0 | 85 | gpregs[i] = tempu64; |
| michael@0 | 86 | else |
| michael@0 | 87 | *d = tempu64; |
| michael@0 | 88 | } |
| michael@0 | 89 | if (i >= 7) |
| michael@0 | 90 | d++; |
| michael@0 | 91 | } |
| michael@0 | 92 | } |
| michael@0 | 93 | |
| michael@0 | 94 | EXPORT_XPCOM_API(nsresult) |
| michael@0 | 95 | NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex, |
| michael@0 | 96 | uint32_t paramCount, nsXPTCVariant* params); |
| michael@0 | 97 |
