1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/reflect/xptcall/src/md/unix/xptcinvoke_sparc_openbsd.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,128 @@
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 +#if !defined(__sparc__)
1.14 +#error "This code is for Sparc only"
1.15 +#endif
1.16 +
1.17 +typedef unsigned nsXPCVariant;
1.18 +
1.19 +extern "C" uint32_t
1.20 +invoke_count_words(uint32_t paramCount, nsXPTCVariant* s)
1.21 +{
1.22 + uint32_t result = 0;
1.23 + for(uint32_t i = 0; i < paramCount; i++, s++)
1.24 + {
1.25 + if(s->IsPtrData())
1.26 + {
1.27 + result++;
1.28 + continue;
1.29 + }
1.30 + switch(s->type)
1.31 + {
1.32 + case nsXPTType::T_I8 :
1.33 + case nsXPTType::T_I16 :
1.34 + case nsXPTType::T_I32 :
1.35 + result++;
1.36 + break;
1.37 + case nsXPTType::T_I64 :
1.38 + result+=2;
1.39 + break;
1.40 + case nsXPTType::T_U8 :
1.41 + case nsXPTType::T_U16 :
1.42 + case nsXPTType::T_U32 :
1.43 + result++;
1.44 + break;
1.45 + case nsXPTType::T_U64 :
1.46 + result+=2;
1.47 + break;
1.48 + case nsXPTType::T_FLOAT :
1.49 + result++;
1.50 + break;
1.51 + case nsXPTType::T_DOUBLE :
1.52 + result+=2;
1.53 + break;
1.54 + case nsXPTType::T_BOOL :
1.55 + case nsXPTType::T_CHAR :
1.56 + case nsXPTType::T_WCHAR :
1.57 + result++;
1.58 + break;
1.59 + default:
1.60 + // all the others are plain pointer types
1.61 + result++;
1.62 + break;
1.63 + }
1.64 + }
1.65 + // nuts, I know there's a cooler way of doing this, but it's late
1.66 + // now and it'll probably come to me in the morning.
1.67 + if (result & 0x3) result += 4 - (result & 0x3); // ensure q-word alignment
1.68 + return result;
1.69 +}
1.70 +
1.71 +extern "C" uint32_t
1.72 +invoke_copy_to_stack(uint32_t* d, uint32_t paramCount, nsXPTCVariant* s)
1.73 +{
1.74 +/*
1.75 + We need to copy the parameters for this function to locals and use them
1.76 + from there since the parameters occupy the same stack space as the stack
1.77 + we're trying to populate.
1.78 +*/
1.79 + uint32_t *l_d = d;
1.80 + nsXPTCVariant *l_s = s;
1.81 + uint32_t l_paramCount = paramCount;
1.82 + uint32_t regCount = 0; // return the number of registers to load from the stack
1.83 +
1.84 + typedef struct {
1.85 + uint32_t hi;
1.86 + uint32_t lo;
1.87 + } DU; // have to move 64 bit entities as 32 bit halves since
1.88 + // stack slots are not guaranteed 16 byte aligned
1.89 +
1.90 + for(uint32_t i = 0; i < l_paramCount; i++, l_d++, l_s++)
1.91 + {
1.92 + if (regCount < 5) regCount++;
1.93 + if(l_s->IsPtrData())
1.94 + {
1.95 + if(l_s->type == nsXPTType::T_JSVAL)
1.96 + {
1.97 + // On SPARC, we need to pass a pointer to HandleValue
1.98 + *((void**)l_d) = &l_s->ptr;
1.99 + } else
1.100 + {
1.101 + *((void**)l_d) = l_s->ptr;
1.102 + }
1.103 + continue;
1.104 + }
1.105 + switch(l_s->type)
1.106 + {
1.107 + case nsXPTType::T_I8 : *((int32_t*) l_d) = l_s->val.i8; break;
1.108 + case nsXPTType::T_I16 : *((int32_t*) l_d) = l_s->val.i16; break;
1.109 + case nsXPTType::T_I32 : *((int32_t*) l_d) = l_s->val.i32; break;
1.110 + case nsXPTType::T_I64 :
1.111 + case nsXPTType::T_U64 :
1.112 + case nsXPTType::T_DOUBLE : *((uint32_t*) l_d++) = ((DU *)l_s)->hi;
1.113 + if (regCount < 5) regCount++;
1.114 + *((uint32_t*) l_d) = ((DU *)l_s)->lo;
1.115 + break;
1.116 + case nsXPTType::T_U8 : *((uint32_t*) l_d) = l_s->val.u8; break;
1.117 + case nsXPTType::T_U16 : *((uint32_t*) l_d) = l_s->val.u16; break;
1.118 + case nsXPTType::T_U32 : *((uint32_t*) l_d) = l_s->val.u32; break;
1.119 + case nsXPTType::T_FLOAT : *((float*) l_d) = l_s->val.f; break;
1.120 + case nsXPTType::T_BOOL : *((uint32_t*) l_d) = l_s->val.b; break;
1.121 + case nsXPTType::T_CHAR : *((uint32_t*) l_d) = l_s->val.c; break;
1.122 + case nsXPTType::T_WCHAR : *((int32_t*) l_d) = l_s->val.wc; break;
1.123 + default:
1.124 + // all the others are plain pointer types
1.125 + *((void**)l_d) = l_s->val.p;
1.126 + break;
1.127 + }
1.128 + }
1.129 + return regCount;
1.130 +}
1.131 +
