diff options
Diffstat (limited to 'www/firefox/patches/patch-bu')
| -rw-r--r-- | www/firefox/patches/patch-bu | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/www/firefox/patches/patch-bu b/www/firefox/patches/patch-bu new file mode 100644 index 00000000000..6551a2a0929 --- /dev/null +++ b/www/firefox/patches/patch-bu @@ -0,0 +1,179 @@ +$NetBSD: patch-bu,v 1.1 2004/06/02 15:09:01 taya Exp $ + +--- xpcom/reflect/xptcall/src/md/unix/xptcinvoke_unixish_amd64.cpp.orig 2004-05-30 21:38:13.000000000 +0900 ++++ xpcom/reflect/xptcall/src/md/unix/xptcinvoke_unixish_amd64.cpp 2004-05-30 21:37:22.000000000 +0900 +@@ -0,0 +1,174 @@ ++/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ ++// Platform specific code to invoke XPCOM methods on native objects ++ ++#include "xptcprivate.h" ++ ++// 6 integral parameters are passed in registers ++const PRUint32 GPR_COUNT = 6; ++ ++// 8 floating point parameters are passed in SSE registers ++const PRUint32 FPR_COUNT = 8; ++ ++// Remember that these 'words' are 64-bit long ++static inline void ++invoke_count_words(PRUint32 paramCount, nsXPTCVariant * s, ++ PRUint32 & nr_gpr, PRUint32 & nr_fpr, PRUint32 & 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 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(PRUint64 * d, PRUint32 paramCount, nsXPTCVariant * s, ++ PRUint64 * gpregs, double * fpregs) ++{ ++ PRUint32 nr_gpr = 1; // skip one GP register for 'that' ++ PRUint32 nr_fpr = 0; ++ PRUint64 value; ++ ++ for (uint32 i = 0; i < paramCount; i++, s++) { ++ if (s->IsPtrData()) ++ value = (PRUint64) 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 = (PRUint64) 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; ++ } ++ } ++} ++ ++extern "C" ++XPTC_PUBLIC_API(nsresult) ++XPTC_InvokeByIndex(nsISupports * that, PRUint32 methodIndex, ++ PRUint32 paramCount, nsXPTCVariant * params) ++{ ++ PRUint32 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 ++ PRUint64 *stack = (PRUint64 *) __builtin_alloca(nr_stack * 8); ++ PRUint64 gpregs[GPR_COUNT]; ++ double fpregs[FPR_COUNT]; ++ invoke_copy_to_stack(stack, paramCount, params, gpregs, fpregs); ++ ++ // Load FPR registers from fpregs[] ++ register double d0 asm("xmm0"); ++ register double d1 asm("xmm1"); ++ register double d2 asm("xmm2"); ++ register double d3 asm("xmm3"); ++ register double d4 asm("xmm4"); ++ register double d5 asm("xmm5"); ++ register double d6 asm("xmm6"); ++ register double d7 asm("xmm7"); ++ ++ switch (nr_fpr) { ++#define ARG_FPR(N) \ ++ case N+1: d##N = fpregs[N]; ++ ARG_FPR(7); ++ ARG_FPR(6); ++ ARG_FPR(5); ++ ARG_FPR(4); ++ ARG_FPR(3); ++ ARG_FPR(2); ++ ARG_FPR(1); ++ ARG_FPR(0); ++ case 0:; ++#undef ARG_FPR ++ } ++ ++ // Load GPR registers from gpregs[] ++ register PRUint64 a0 asm("rdi"); ++ register PRUint64 a1 asm("rsi"); ++ register PRUint64 a2 asm("rdx"); ++ register PRUint64 a3 asm("rcx"); ++ register PRUint64 a4 asm("r8"); ++ register PRUint64 a5 asm("r9"); ++ ++ switch (nr_gpr) { ++#define ARG_GPR(N) \ ++ case N+1: a##N = gpregs[N]; ++ ARG_GPR(5); ++ ARG_GPR(4); ++ ARG_GPR(3); ++ ARG_GPR(2); ++ ARG_GPR(1); ++ case 1: a0 = (PRUint64) that; ++ case 0:; ++#undef ARG_GPR ++ } ++ ++ // Ensure that assignments to SSE registers won't be optimized away ++ asm("" :: ++ "x" (d0), "x" (d1), "x" (d2), "x" (d3), ++ "x" (d4), "x" (d5), "x" (d6), "x" (d7)); ++ ++ // Get pointer to method ++ PRUint64 methodAddress = *((PRUint64 *)that); ++ methodAddress += 8 * methodIndex; ++ methodAddress = *((PRUint64 *)methodAddress); ++ ++ typedef PRUint32 (*Method)(PRUint64, PRUint64, PRUint64, PRUint64, PRUint64, PRUint64); ++ PRUint32 result = ((Method)methodAddress)(a0, a1, a2, a3, a4, a5); ++ return result; ++} |