summaryrefslogtreecommitdiffstats
path: root/www/xulrunner/files/patch-xptcall-amd64
diff options
context:
space:
mode:
Diffstat (limited to 'www/xulrunner/files/patch-xptcall-amd64')
-rw-r--r--www/xulrunner/files/patch-xptcall-amd64386
1 files changed, 386 insertions, 0 deletions
diff --git a/www/xulrunner/files/patch-xptcall-amd64 b/www/xulrunner/files/patch-xptcall-amd64
new file mode 100644
index 000000000..3227cad02
--- /dev/null
+++ b/www/xulrunner/files/patch-xptcall-amd64
@@ -0,0 +1,386 @@
+--- /dev/null Wed Dec 31 16:00:00 1969
++++ xpcom/reflect/xptcall/src/md/unix/xptcinvoke_amd64_freebsd.cpp Thu Oct 16 22:59:43 2003
+@@ -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;
++}
+--- /dev/null Wed Dec 31 16:00:00 1969
++++ xpcom/reflect/xptcall/src/md/unix/xptcstubs_amd64_freebsd.cpp Thu Oct 16 23:01:08 2003
+@@ -0,0 +1,206 @@
++/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
++
++// Implement shared vtbl methods.
++
++#include "xptcprivate.h"
++
++// The Linux/x86-64 ABI passes the first 6 integral parameters and the
++// first 8 floating point parameters in registers (rdi, rsi, rdx, rcx,
++// r8, r9 and xmm0-xmm7), no stack space is allocated for these by the
++// caller. The rest of the parameters are passed in the callers stack
++// area.
++
++const PRUint32 PARAM_BUFFER_COUNT = 16;
++const PRUint32 GPR_COUNT = 6;
++const PRUint32 FPR_COUNT = 8;
++
++// PrepareAndDispatch() is called by SharedStub() and calls the actual method.
++//
++// - 'args[]' contains the arguments passed on stack
++// - 'gpregs[]' contains the arguments passed in integer registers
++// - 'fpregs[]' contains the arguments passed in floating point registers
++//
++// The parameters are mapped into an array of type 'nsXPTCMiniVariant'
++// and then the method gets called.
++
++extern "C" nsresult
++PrepareAndDispatch(nsXPTCStubBase * self, PRUint32 methodIndex,
++ PRUint64 * args, PRUint64 * gpregs, double *fpregs)
++{
++ nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];
++ nsXPTCMiniVariant* dispatchParams = NULL;
++ nsIInterfaceInfo* iface_info = NULL;
++ const nsXPTMethodInfo* info;
++ PRUint32 paramCount;
++ PRUint32 i;
++ nsresult result = NS_ERROR_FAILURE;
++
++ NS_ASSERTION(self,"no self");
++
++ self->GetInterfaceInfo(&iface_info);
++ NS_ASSERTION(iface_info,"no interface info");
++ if (! iface_info)
++ return NS_ERROR_UNEXPECTED;
++
++ iface_info->GetMethodInfo(PRUint16(methodIndex), &info);
++ NS_ASSERTION(info,"no method info");
++ if (! info)
++ return NS_ERROR_UNEXPECTED;
++
++ paramCount = info->GetParamCount();
++
++ // setup variant array pointer
++ if(paramCount > PARAM_BUFFER_COUNT)
++ dispatchParams = new nsXPTCMiniVariant[paramCount];
++ else
++ dispatchParams = paramBuffer;
++
++ NS_ASSERTION(dispatchParams,"no place for params");
++ if (! dispatchParams)
++ return NS_ERROR_OUT_OF_MEMORY;
++
++ PRUint64* ap = args;
++ PRUint32 nr_gpr = 1; // skip one GPR register for 'that'
++ PRUint32 nr_fpr = 0;
++ PRUint64 value;
++
++ for(i = 0; i < paramCount; i++) {
++ const nsXPTParamInfo& param = info->GetParam(i);
++ const nsXPTType& type = param.GetType();
++ nsXPTCMiniVariant* dp = &dispatchParams[i];
++
++ if (!param.IsOut() && type == nsXPTType::T_DOUBLE) {
++ if (nr_fpr < FPR_COUNT)
++ dp->val.d = fpregs[nr_fpr++];
++ else
++ dp->val.d = *(double*) ap++;
++ continue;
++ }
++ else if (!param.IsOut() && 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.
++ dp->val.d = *(double*) ap++;
++ else
++ dp->val.f = *(float*) ap++;
++ continue;
++ }
++ else {
++ if (nr_gpr < GPR_COUNT)
++ value = gpregs[nr_gpr++];
++ else
++ value = *ap++;
++ }
++
++ if (param.IsOut() || !type.IsArithmetic()) {
++ dp->val.p = (void*) value;
++ continue;
++ }
++
++ switch (type) {
++ case nsXPTType::T_I8: dp->val.i8 = (PRInt8) value; break;
++ case nsXPTType::T_I16: dp->val.i16 = (PRInt16) value; break;
++ case nsXPTType::T_I32: dp->val.i32 = (PRInt32) value; break;
++ case nsXPTType::T_I64: dp->val.i64 = (PRInt64) value; break;
++ case nsXPTType::T_U8: dp->val.u8 = (PRUint8) value; break;
++ case nsXPTType::T_U16: dp->val.u16 = (PRUint16) value; break;
++ case nsXPTType::T_U32: dp->val.u32 = (PRUint32) value; break;
++ case nsXPTType::T_U64: dp->val.u64 = (PRUint64) value; break;
++ case nsXPTType::T_BOOL: dp->val.b = (PRBool) value; break;
++ case nsXPTType::T_CHAR: dp->val.c = (char) value; break;
++ case nsXPTType::T_WCHAR: dp->val.wc = (wchar_t) value; break;
++
++ default:
++ NS_ASSERTION(0, "bad type");
++ break;
++ }
++ }
++
++ result = self->CallMethod((PRUint16) methodIndex, info, dispatchParams);
++
++ NS_RELEASE(iface_info);
++
++ if (dispatchParams != paramBuffer)
++ delete [] dispatchParams;
++
++ return result;
++}
++
++#if defined(__GXX_ABI_VERSION) && __GXX_ABI_VERSION >= 100 /* G++ V3 ABI */
++// Linux/x86-64 uses gcc >= 3.1
++#define STUB_ENTRY(n) \
++asm(".section \".text\"\n\t" \
++ ".align 2\n\t" \
++ ".if " #n " < 10\n\t" \
++ ".globl _ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
++ ".type _ZN14nsXPTCStubBase5Stub" #n "Ev,@function\n" \
++ "_ZN14nsXPTCStubBase5Stub" #n "Ev:\n\t" \
++ ".elseif " #n " < 100\n\t" \
++ ".globl _ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
++ ".type _ZN14nsXPTCStubBase6Stub" #n "Ev,@function\n" \
++ "_ZN14nsXPTCStubBase6Stub" #n "Ev:\n\t" \
++ ".elseif " #n " < 1000\n\t" \
++ ".globl _ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
++ ".type _ZN14nsXPTCStubBase7Stub" #n "Ev,@function\n" \
++ "_ZN14nsXPTCStubBase7Stub" #n "Ev:\n\t" \
++ ".else\n\t" \
++ ".err \"stub number " #n " >= 1000 not yet supported\"\n\t" \
++ ".endif\n\t" \
++ "movl $" #n ", %eax\n\t" \
++ "jmp SharedStub\n\t" \
++ ".if " #n " < 10\n\t" \
++ ".size _ZN14nsXPTCStubBase5Stub" #n "Ev,.-_ZN14nsXPTCStubBase5Stub" #n "Ev\n\t" \
++ ".elseif " #n " < 100\n\t" \
++ ".size _ZN14nsXPTCStubBase6Stub" #n "Ev,.-_ZN14nsXPTCStubBase6Stub" #n "Ev\n\t" \
++ ".else\n\t" \
++ ".size _ZN14nsXPTCStubBase7Stub" #n "Ev,.-_ZN14nsXPTCStubBase7Stub" #n "Ev\n\t" \
++ ".endif");
++
++// static nsresult SharedStub(PRUint32 methodIndex)
++asm(".section \".text\"\n\t"
++ ".align 2\n\t"
++ ".type SharedStub,@function\n\t"
++ "SharedStub:\n\t"
++ // make room for gpregs (48), fpregs (64)
++ "pushq %rbp\n\t"
++ "movq %rsp,%rbp\n\t"
++ "subq $112,%rsp\n\t"
++ // save GP registers
++ "movq %rdi,-112(%rbp)\n\t"
++ "movq %rsi,-104(%rbp)\n\t"
++ "movq %rdx, -96(%rbp)\n\t"
++ "movq %rcx, -88(%rbp)\n\t"
++ "movq %r8 , -80(%rbp)\n\t"
++ "movq %r9 , -72(%rbp)\n\t"
++ "leaq -112(%rbp),%rcx\n\t"
++ // save FP registers
++ "movsd %xmm0,-64(%rbp)\n\t"
++ "movsd %xmm1,-56(%rbp)\n\t"
++ "movsd %xmm2,-48(%rbp)\n\t"
++ "movsd %xmm3,-40(%rbp)\n\t"
++ "movsd %xmm4,-32(%rbp)\n\t"
++ "movsd %xmm5,-24(%rbp)\n\t"
++ "movsd %xmm6,-16(%rbp)\n\t"
++ "movsd %xmm7, -8(%rbp)\n\t"
++ "leaq -64(%rbp),%r8\n\t"
++ // rdi has the 'self' pointer already
++ "movl %eax,%esi\n\t"
++ "leaq 16(%rbp),%rdx\n\t"
++ "call PrepareAndDispatch\n\t"
++ "leave\n\t"
++ "ret\n\t"
++ ".size SharedStub,.-SharedStub");
++
++#define SENTINEL_ENTRY(n) \
++nsresult nsXPTCStubBase::Sentinel##n() \
++{ \
++ NS_ASSERTION(0,"nsXPTCStubBase::Sentinel called"); \
++ return NS_ERROR_NOT_IMPLEMENTED; \
++}
++
++#include "xptcstubsdef.inc"
++
++#else
++#error "can't find a compiler to use"
++#endif /* __GNUC__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 21:12:10 +0800