Port to amd64 (note: needs ld-elf.so.1 bugfix to actually work)

I've taken a chance and split the sparc64 and alpha mega-diffs up because
sparc64 patched the result of alpha's patches, and amd64 needed to do the
same again - but it was sorted lexically before alpha/sparc64.  I've
grouped the xptcall patches together since they are standalone and split
up and merged the other infrastructure jumbo-patches.

I also attempted to sync up the nspr vs firebird diffs for sparc64 and
alpha because they disagreed.  HOWEVER... While this port 'depends'
on the nspr port, it doesn't actually *use* it.  It should probably
be removed from the LIB_DEPENDS list.

Note that the amd64 xptcall code came from SuSE via the mozilla bugzilla
database.

1 files changed, 386 insertions, 0 deletions

diff --git a/www/firefox15/files/patch-xptcall-amd64 b/www/firefox15/files/patch-xptcall-amd64
new file mode 100644
index 000000000000..3227cad02182
--- /dev/null
+++ b/www/firefox15/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__ */