1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_linux_m68k.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,130 @@
1.4 +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* Platform specific code to invoke XPCOM methods on native objects */
1.10 +
1.11 +#include "xptcprivate.h"
1.12 +
1.13 +// Remember that these 'words' are 32bit DWORDS
1.14 +
1.15 +extern "C" {
1.16 + static uint32_t
1.17 + invoke_count_words(uint32_t paramCount, nsXPTCVariant* s)
1.18 + {
1.19 + uint32_t result = 0;
1.20 + for(uint32_t i = 0; i < paramCount; i++, s++)
1.21 + {
1.22 + if(s->IsPtrData())
1.23 + {
1.24 + result++;
1.25 + continue;
1.26 + }
1.27 + switch(s->type)
1.28 + {
1.29 + case nsXPTType::T_I8 :
1.30 + case nsXPTType::T_I16 :
1.31 + case nsXPTType::T_I32 :
1.32 + result++;
1.33 + break;
1.34 + case nsXPTType::T_I64 :
1.35 + result+=2;
1.36 + break;
1.37 + case nsXPTType::T_U8 :
1.38 + case nsXPTType::T_U16 :
1.39 + case nsXPTType::T_U32 :
1.40 + result++;
1.41 + break;
1.42 + case nsXPTType::T_U64 :
1.43 + result+=2;
1.44 + break;
1.45 + case nsXPTType::T_FLOAT :
1.46 + result++;
1.47 + break;
1.48 + case nsXPTType::T_DOUBLE :
1.49 + result+=2;
1.50 + break;
1.51 + case nsXPTType::T_BOOL :
1.52 + case nsXPTType::T_CHAR :
1.53 + case nsXPTType::T_WCHAR :
1.54 + result++;
1.55 + break;
1.56 + default:
1.57 + // all the others are plain pointer types
1.58 + result++;
1.59 + break;
1.60 + }
1.61 + }
1.62 + return result;
1.63 + }
1.64 +
1.65 + void
1.66 + invoke_copy_to_stack(uint32_t* d, uint32_t paramCount, nsXPTCVariant* s)
1.67 + {
1.68 + for(uint32_t i = 0; i < paramCount; i++, d++, s++)
1.69 + {
1.70 + if(s->IsPtrData())
1.71 + {
1.72 + *((void**)d) = s->ptr;
1.73 + continue;
1.74 + }
1.75 + switch(s->type)
1.76 + {
1.77 + // 8 and 16 bit types should be promoted to 32 bits when copying
1.78 + // onto the stack.
1.79 + case nsXPTType::T_I8 : *((uint32_t*)d) = s->val.i8; break;
1.80 + case nsXPTType::T_I16 : *((uint32_t*)d) = s->val.i16; break;
1.81 + case nsXPTType::T_I32 : *((int32_t*) d) = s->val.i32; break;
1.82 + case nsXPTType::T_I64 : *((int64_t*) d) = s->val.i64; d++; break;
1.83 + case nsXPTType::T_U8 : *((uint32_t*)d) = s->val.u8; break;
1.84 + case nsXPTType::T_U16 : *((uint32_t*)d) = s->val.u16; break;
1.85 + case nsXPTType::T_U32 : *((uint32_t*)d) = s->val.u32; break;
1.86 + case nsXPTType::T_U64 : *((uint64_t*)d) = s->val.u64; d++; break;
1.87 + case nsXPTType::T_FLOAT : *((float*) d) = s->val.f; break;
1.88 + case nsXPTType::T_DOUBLE : *((double*) d) = s->val.d; d++; break;
1.89 + case nsXPTType::T_BOOL : *((uint32_t*)d) = s->val.b; break;
1.90 + case nsXPTType::T_CHAR : *((uint32_t*)d) = s->val.c; break;
1.91 + case nsXPTType::T_WCHAR : *((wchar_t*) d) = s->val.wc; break;
1.92 +
1.93 + default:
1.94 + // all the others are plain pointer types
1.95 + *((void**)d) = s->val.p;
1.96 + break;
1.97 + }
1.98 + }
1.99 + }
1.100 +}
1.101 +
1.102 +EXPORT_XPCOM_API(nsresult)
1.103 +NS_InvokeByIndex(nsISupports* that, uint32_t methodIndex,
1.104 + uint32_t paramCount, nsXPTCVariant* params)
1.105 +{
1.106 + uint32_t result, n;
1.107 +
1.108 + n = invoke_count_words(paramCount, params) * 4;
1.109 +
1.110 + __asm__ __volatile__(
1.111 + "subl %5, %%sp\n\t" /* make room for params */
1.112 + "movel %4, %%sp@-\n\t"
1.113 + "movel %3, %%sp@-\n\t"
1.114 + "pea %%sp@(8)\n\t"
1.115 + "jbsr invoke_copy_to_stack\n\t" /* copy params */
1.116 + "addw #12, %%sp\n\t"
1.117 + "movel %1, %%sp@-\n\t"
1.118 + "movel %1@, %%a0\n\t"
1.119 + "movel %%a0@(%2:l:4), %%a0\n\t"
1.120 + "jbsr %%a0@\n\t" /* safe to not cleanup sp */
1.121 + "lea %%sp@(4,%5:l), %%sp\n\t"
1.122 + "movel %%d0, %0"
1.123 + : "=d" (result) /* %0 */
1.124 + : "a" (that), /* %1 */
1.125 + "d" (methodIndex), /* %2 */
1.126 + "g" (paramCount), /* %3 */
1.127 + "g" (params), /* %4 */
1.128 + "d" (n) /* %5 */
1.129 + : "a0", "a1", "d0", "d1", "memory"
1.130 + );
1.131 +
1.132 + return result;
1.133 +}
