diff options
Diffstat (limited to 'xpcom/reflect/xptcall/md/unix/xptcinvoke_x86_64_solaris.cpp')
| -rw-r--r-- | xpcom/reflect/xptcall/md/unix/xptcinvoke_x86_64_solaris.cpp | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_x86_64_solaris.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_x86_64_solaris.cpp deleted file mode 100644 index 0d3424366..000000000 --- a/xpcom/reflect/xptcall/md/unix/xptcinvoke_x86_64_solaris.cpp +++ /dev/null @@ -1,149 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- - * - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -// Platform specific code to invoke XPCOM methods on native objects - -#include "xptcprivate.h" -#include "alloca.h" - -// 6 integral parameters are passed in registers -const uint32_t GPR_COUNT = 6; - -// 8 floating point parameters are passed in SSE registers -const uint32_t FPR_COUNT = 8; - -// Remember that these 'words' are 64-bit long -static inline void -invoke_count_words(uint32_t paramCount, nsXPTCVariant * s, - uint32_t & nr_gpr, uint32_t & nr_fpr, uint32_t & nr_stack) -{ - nr_gpr = 1; // skip one GP register for 'that' - nr_fpr = 0; - nr_stack = 0; - - /* Compute number of eightbytes of class MEMORY. */ - for (uint32_t i = 0; i < paramCount; i++, s++) { - if (!s->IsPtrData() - && (s->type == nsXPTType::T_FLOAT || s->type == nsXPTType::T_DOUBLE)) { - if (nr_fpr < FPR_COUNT) - nr_fpr++; - else - nr_stack++; - } - else { - if (nr_gpr < GPR_COUNT) - nr_gpr++; - else - nr_stack++; - } - } -} - -static void -invoke_copy_to_stack(uint64_t * d, uint32_t paramCount, nsXPTCVariant * s, - uint64_t * gpregs, double * fpregs) -{ - uint32_t nr_gpr = 1; // skip one GP register for 'that' - uint32_t nr_fpr = 0; - uint64_t value; - - for (uint32_t i = 0; i < paramCount; i++, s++) { - if (s->IsPtrData()) - value = (uint64_t) s->ptr; - else { - switch (s->type) { - case nsXPTType::T_FLOAT: break; - case nsXPTType::T_DOUBLE: break; - case nsXPTType::T_I8: value = s->val.i8; break; - case nsXPTType::T_I16: value = s->val.i16; break; - case nsXPTType::T_I32: value = s->val.i32; break; - case nsXPTType::T_I64: value = s->val.i64; break; - case nsXPTType::T_U8: value = s->val.u8; break; - case nsXPTType::T_U16: value = s->val.u16; break; - case nsXPTType::T_U32: value = s->val.u32; break; - case nsXPTType::T_U64: value = s->val.u64; break; - case nsXPTType::T_BOOL: value = s->val.b; break; - case nsXPTType::T_CHAR: value = s->val.c; break; - case nsXPTType::T_WCHAR: value = s->val.wc; break; - default: value = (uint64_t) s->val.p; break; - } - } - - if (!s->IsPtrData() && s->type == nsXPTType::T_DOUBLE) { - if (nr_fpr < FPR_COUNT) - fpregs[nr_fpr++] = s->val.d; - else { - *((double *)d) = s->val.d; - d++; - } - } - else if (!s->IsPtrData() && s->type == nsXPTType::T_FLOAT) { - if (nr_fpr < FPR_COUNT) - // The value in %xmm register is already prepared to - // be retrieved as a float. Therefore, we pass the - // value verbatim, as a double without conversion. - fpregs[nr_fpr++] = s->val.d; - else { - *((float *)d) = s->val.f; - d++; - } - } - else { - if (nr_gpr < GPR_COUNT) - gpregs[nr_gpr++] = value; - else - *d++ = value; - } - } -} - -// Avoid AddressSanitizer instrumentation for the next function because it -// depends on __builtin_alloca behavior and alignment that cannot be relied on -// once the function is compiled with a version of ASan that has dynamic-alloca -// instrumentation enabled. - -MOZ_ASAN_BLACKLIST -EXPORT_XPCOM_API(nsresult) -NS_InvokeByIndex(nsISupports * that, uint32_t methodIndex, - uint32_t paramCount, nsXPTCVariant * params) -{ - uint32_t nr_gpr, nr_fpr, nr_stack; - invoke_count_words(paramCount, params, nr_gpr, nr_fpr, nr_stack); - - // Stack, if used, must be 16-bytes aligned - if (nr_stack) - nr_stack = (nr_stack + 1) & ~1; - - // Load parameters to stack, if necessary - uint64_t *stack = (uint64_t *) __builtin_alloca(nr_stack * 8); - uint64_t gpregs[GPR_COUNT]; - double fpregs[FPR_COUNT]; - invoke_copy_to_stack(stack, paramCount, params, gpregs, fpregs); - - switch (nr_fpr) { - case 8: asm("movupd %0, %xmm7" : : "xmm7" (fpregs[7])); - case 7: asm("movupd %0, %xmm6" : : "xmm6" (fpregs[6])); - case 6: asm("movupd %0, %xmm5" : : "xmm5" (fpregs[5])); - case 5: asm("movupd %0, %xmm4" : : "xmm4" (fpregs[4])); - case 4: asm("movupd %0, %xmm3" : : "xmm3" (fpregs[3])); - case 3: asm("movupd %0, %xmm2" : : "xmm2" (fpregs[2])); - case 2: asm("movupd %0, %xmm1" : : "xmm1" (fpregs[1])); - case 1: asm("movupd %0, %xmm0" : : "xmm0" (fpregs[0])); - case 0:; - } - - // Ensure that assignments to SSE registers won't be optimized away - asm("" ::: "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"); - - // Get pointer to method - uint64_t methodAddress = *((uint64_t *)that); - methodAddress += 16 + 8 * methodIndex; - methodAddress = *((uint64_t *)methodAddress); - - typedef uint32_t (*Method)(uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t); - uint32_t result = ((Method)methodAddress)((uint64_t)that, gpregs[1], gpregs[2], gpregs[3], gpregs[4], gpregs[5]); - return result; -} |