mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2024-12-23 14:03:34 +00:00
760 lines
24 KiB
C++
760 lines
24 KiB
C++
#include "Gen_RPC8.h"
|
|
|
|
unsigned int GenRPC::BuildStack(char *stack)
|
|
{
|
|
char *stackPtr = (char*) stack;
|
|
SerializeHeader(stackPtr, 0);
|
|
return (unsigned int)(stackPtr-stack);
|
|
}
|
|
|
|
/// \internal
|
|
void GenRPC::Push( char*& p, char*const i, bool doEndianSwap) {
|
|
(void) doEndianSwap;
|
|
size_t len = strlen( i ) + 1;
|
|
memcpy( (void*)p, i, len );
|
|
p += len;
|
|
}
|
|
|
|
/// \internal
|
|
void GenRPC::Push( char*& p, const char*const i, bool doEndianSwap ) {
|
|
(void) doEndianSwap;
|
|
size_t len = strlen( i ) + 1;
|
|
memcpy( (void*)p, i, len );
|
|
p += len;
|
|
}
|
|
/// \internal
|
|
unsigned GenRPC::D_type( const char*const ) { return STR_PARAM; }
|
|
/// \internal
|
|
unsigned GenRPC::D_type( char*const ) { return STR_PARAM; }
|
|
|
|
/// \internal
|
|
unsigned GenRPC::D_type( float ) { return REAL_PARAM; }
|
|
/// \internal
|
|
unsigned GenRPC::D_type( double ) { return REAL_PARAM; }
|
|
/// \internal
|
|
unsigned GenRPC::D_type( long double ) { return REAL_PARAM; }
|
|
|
|
/// \internal
|
|
size_t GenRPC::D_size( char*const str ) { return strlen( str ) + 1; }
|
|
/// \internal
|
|
size_t GenRPC::D_size( char const *const str ){ return strlen( str ) + 1; }
|
|
|
|
void GenRPC::SerializeHeader(char *&out, unsigned int numParams)
|
|
{
|
|
*out = (char) numParams;
|
|
out++;
|
|
//out[*writeOffset]=(char) numParams;
|
|
//*writeOffset+=sizeof(unsigned char);
|
|
}
|
|
|
|
//
|
|
// @params
|
|
// call: [IN/OUT] workspace to build parameters that we will pass to function
|
|
// in: [IN/OUT] is the serialized buffer - used as a temporary working for swapping
|
|
// parameters.
|
|
// inLength: [IN] is the length of the above
|
|
// lastParam: [IN] final parameter, added onto the list
|
|
// thisPtr: [IN] if not zero - the value of this (added to start of list).
|
|
//
|
|
// @returns:
|
|
// true: parameter list created successfully.
|
|
// false: if deserialization fails for some reason.
|
|
//
|
|
bool GenRPC::DeserializeParametersAndBuildCall(
|
|
CallParams &call,
|
|
char *in, unsigned int inLength,
|
|
void *lastParam, void *thisPtr
|
|
) {
|
|
|
|
#if AUTO_RPC_ABI
|
|
|
|
NaturalWord *intCallParam = call.intParams;
|
|
|
|
char *refParam = call.refParams;
|
|
|
|
#if AUTO_RPC_ALLOC_SEPARATE_FLOATS
|
|
HardwareReal *realCallParam = call.realParams;
|
|
#endif
|
|
|
|
#if AUTO_RPC_CREATE_FLOAT_MAP
|
|
call.realMap = 0;
|
|
call.numRealParams = 0;
|
|
#endif
|
|
|
|
#if AUTO_RPC_ABI == AUTO_RPC_ABI_SYSV_AMD64
|
|
// large structure parameters have to be bumped up here - which corresponds with the start
|
|
// of the parameters that *are* passed on the stack.
|
|
NaturalWord *memParam = &call.intParams[ AUTO_RPC_INT_REG_PARAMS ];
|
|
#endif
|
|
|
|
// this is first arg - assume space ;-)
|
|
#pragma warning(disable:4311) // pointer truncation
|
|
if ( thisPtr )
|
|
*(intCallParam++) = reinterpret_cast<NaturalWord>( thisPtr );
|
|
|
|
unsigned int serializedArgs = *(unsigned char*)in;
|
|
|
|
unsigned char* header = (unsigned char*)in + 1;
|
|
|
|
unsigned char* data = &header[ serializedArgs * ( sizeof( unsigned int ) + 1 ) ];
|
|
|
|
// check we have the entire header in buffer
|
|
if ( data > (unsigned char*) &in[ inLength ] )
|
|
return 0;
|
|
|
|
for ( unsigned int i = 0; i < serializedArgs; i++ )
|
|
{
|
|
|
|
// read heade entry
|
|
int const plen = *(unsigned int*)header;
|
|
header += sizeof( unsigned int );
|
|
unsigned char const flags = *( header++ );
|
|
|
|
// Some bits are not used by the current implementation. So if we find them we bail because
|
|
// we clearly are not equipped to handle the data - and is there no safe way to "fail".
|
|
if ( flags & RESERVED_BITS )
|
|
return 0;
|
|
|
|
#ifndef __BITSTREAM_NATIVE_END
|
|
if (flags & DO_ENDIAN_SWAP)
|
|
{
|
|
RakNet::BitStream::ReverseBytesInPlace( (unsigned char*)&plen , sizeof( plen ) );
|
|
}
|
|
#endif
|
|
|
|
if ( !plen || data + plen > (unsigned char*)&in[ inLength ] )
|
|
return 0;
|
|
|
|
// handle null-terminated strings.
|
|
if ( ( flags & PARAM_TYPE_MASK ) == STR_PARAM )
|
|
{
|
|
|
|
if ( intCallParam + 1 >= AUTO_RPC_ARRAY_END( call.intParams ) )
|
|
return 0;
|
|
|
|
// Check this has some sort of null termination. NB this assumes string is genuine Ascii
|
|
// or UTF+8; using unicode (ie. UTF+16, UCS) could break this.
|
|
if ( data[ plen - 1 ] != 0 )
|
|
return 0;
|
|
|
|
// The string doesn't need to be aligned, so we leave it in place; saving a copy, and
|
|
// preventing clogging up of our buffers with data.
|
|
|
|
#pragma warning(disable:4311) // pointer truncation
|
|
*( intCallParam++ ) = reinterpret_cast<NaturalWord>( data );
|
|
|
|
data += plen;
|
|
|
|
continue;
|
|
}
|
|
|
|
#ifndef __BITSTREAM_NATIVE_END
|
|
if (flags & DO_ENDIAN_SWAP)
|
|
{
|
|
RakNet::BitStream::ReverseBytesInPlace( (unsigned char*)data , plen );
|
|
}
|
|
#endif
|
|
|
|
// convert pointer to ref.
|
|
if ( ( flags & PARAM_TYPE_MASK ) == REF_PARAM
|
|
#if AUTO_RPC_PARAMETER_REFERENCE_THRESHOLD
|
|
|| plen > AUTO_RPC_PARAMETER_REFERENCE_THRESHOLD
|
|
#endif
|
|
)
|
|
{
|
|
char *nextRefParam = refParam + AUTO_RPC__ALIGN_P2( plen, AUTO_RPC_REF_ALIGN );
|
|
|
|
if ( nextRefParam >= AUTO_RPC_ARRAY_END( call.refParams ) || intCallParam + 1 >= AUTO_RPC_ARRAY_END( call.intParams ) )
|
|
return 0;
|
|
|
|
memcpy( refParam, data, plen );
|
|
|
|
#pragma warning(disable:4311) // pointer truncation
|
|
*( intCallParam++ ) = reinterpret_cast<NaturalWord>( refParam );
|
|
|
|
refParam = nextRefParam;
|
|
|
|
data += plen;
|
|
|
|
continue;
|
|
}
|
|
|
|
// Guarantee we have space on the output stack to accommodate the parameter.
|
|
NaturalWord *nextParam = (NaturalWord*)( (char*)intCallParam + AUTO_RPC_ALIGN_P2( plen, NaturalWord ) );
|
|
if ( nextParam >= AUTO_RPC_ARRAY_END( call.intParams ) )
|
|
return 0;
|
|
|
|
#if AUTO_RPC_ALLOC_SEPARATE_FLOATS
|
|
if ( ( flags & PARAM_TYPE_MASK ) == REAL_PARAM
|
|
// long doubles, of various sizes (10, 16), all get passed on the stack
|
|
&& (size_t) plen <= sizeof(double)
|
|
// once we've allocated all our floats, they get treated as ordinary int params
|
|
&& realCallParam < AUTO_RPC_ARRAY_END( call.realParams )
|
|
)
|
|
{
|
|
|
|
if ( plen != sizeof( float ) && plen != sizeof( double ) ) {
|
|
printf("illegal float size %d\n", plen );
|
|
// We can't handle it - it's not a real real :lol:
|
|
return 0;
|
|
}
|
|
|
|
#ifdef __BIG_ENDIAN__
|
|
memcpy( (char*)( realCallParam + 1 ) - plen, data, plen );
|
|
#else
|
|
memcpy( (char*)realCallParam, data, plen );
|
|
#endif
|
|
|
|
#if !AUTO_RPC_INT_SHADOW_OF_FLOATS
|
|
// we didn't use the int slot, so don't allow an advance.
|
|
nextParam = intCallParam;
|
|
#endif
|
|
|
|
// next time, we use the next Real slot
|
|
realCallParam++;
|
|
}
|
|
#if !AUTO_RPC_INT_SHADOW_OF_FLOATS
|
|
else
|
|
#endif
|
|
#endif // AUTO_RPC_ALLOC_SEPARATE_FLOATS
|
|
{
|
|
// the processor can atomically zero-extend small types, so even with the test,
|
|
// it should be faster than memcpy+memset.
|
|
if ( plen == 1 )
|
|
*intCallParam = *(uint8_t*)data; // should resolve to movzx and a move
|
|
else if ( plen == 2 )
|
|
*intCallParam = *(uint16_t*)data; // if network order replace use htons(), and skip EndianSwap()
|
|
else if ( plen == 4 )
|
|
*intCallParam = *(uint32_t*)data; // if network order replace use htonl(), and skip EndianSwap()
|
|
#if AUTO_RPC_AUTORPC_WORD == 64
|
|
else if ( plen == 8 )
|
|
*intCallParam = *(uint64_t*)data;
|
|
#endif
|
|
|
|
#if AUTO_RPC_ABI == AUTO_RPC_ABI_SYSV_AMD64
|
|
//
|
|
// SYSV ABI: aggregates greater 16 bytes must go on the stack;
|
|
// in practice, that means they can't come below AUTO_RPC_INT_REG_PARAMS when we call a function.
|
|
//
|
|
else if ( plen > 16 || ( plen > 8 && intCallParam == &call.intParams[ AUTO_RPC_INT_REG_PARAMS - 1] ) || ( flags & REAL_PARAM ) )
|
|
{
|
|
if ( intCallParam < memParam )
|
|
{
|
|
NaturalWord*const nextMemParam = (NaturalWord*)( (char*)memParam + AUTO_RPC_ALIGN_P2( plen, NaturalWord ) );
|
|
|
|
if ( nextMemParam >= AUTO_RPC_ARRAY_END( call.intParams ) )
|
|
return 0;
|
|
|
|
memcpy( memParam, data, plen );
|
|
|
|
// prevent advancing the ptr slot, since we didn't use it.
|
|
nextParam = intCallParam;
|
|
|
|
// but advance the memparam
|
|
memParam = nextMemParam;
|
|
}
|
|
else
|
|
{
|
|
memcpy( (void*)intCallParam, data, plen );
|
|
}
|
|
}
|
|
#endif // AUTO_RPC_ABI_SYSV_AMD64
|
|
else
|
|
{
|
|
// We don't need to worry about alignment, because any type that's not a whole multiple
|
|
// of the natual word size will be an aggregate and that should be at the base of memory -
|
|
// this is true for some PowerPC systems (see [e]) but not all. But hey, you
|
|
// probably should be passing such structs by reference.
|
|
//
|
|
// Zeroing is also unecessary as code shouldn't be reading beyodn the bounds of the structure.
|
|
//
|
|
memcpy( (void*)intCallParam, data, plen );
|
|
}
|
|
|
|
}
|
|
|
|
#if AUTO_RPC_ABI == AUTO_RPC_ABI_SYSV_AMD64
|
|
// skip over any stored "class MEMORY" (see [b]) parameters.
|
|
if ( nextParam == &call.intParams[AUTO_RPC_INT_REG_PARAMS] )
|
|
intCallParam = memParam;
|
|
else
|
|
#endif
|
|
// advance to next output param
|
|
intCallParam = nextParam;
|
|
|
|
#if !AUTO_RPC_ALLOC_SEPARATE_FLOATS && AUTO_RPC_CREATE_FLOAT_MAP
|
|
if ( ( flags & PARAM_TYPE_MASK ) == REAL_PARAM && i < AUTO_RPC_FLOAT_REG_PARAMS && ( plen == sizeof( double ) || plen == sizeof( float ) ) )
|
|
{
|
|
call.numRealParams++;
|
|
call.realMap |= ( 1 << i );
|
|
}
|
|
#endif
|
|
|
|
// advance to next input arg.
|
|
data += plen;
|
|
}
|
|
|
|
// space for lastParam?
|
|
if ( &intCallParam[1] >= AUTO_RPC_ARRAY_END( call.intParams ) )
|
|
return 0;
|
|
|
|
#pragma warning(disable:4311) // pointer truncation
|
|
*( intCallParam++ ) = reinterpret_cast<NaturalWord >( lastParam );
|
|
|
|
#if AUTO_RPC_ABI == AUTO_RPC_ABI_SYSV_AMD64
|
|
// figure out how many args we have notched up.
|
|
if ( memParam > &call.intParams[AUTO_RPC_INT_REG_PARAMS] && memParam > intCallParam )
|
|
intCallParam = memParam;
|
|
#endif
|
|
|
|
// convert from ptrdif_t to unsigned int; should be small enough, even if its 64-bit pointers.
|
|
call.numIntParams = ( unsigned int )( intCallParam - call.intParams );
|
|
|
|
#if AUTO_RPC_FLOAT_REG_PARAMS && AUTO_RPC_ALLOC_SEPARATE_FLOATS
|
|
call.numRealParams = ( unsigned int )( realCallParam - call.realParams );
|
|
#endif
|
|
|
|
return 1;
|
|
#else // AUTO_RPC_ABI
|
|
return 0;
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
//
|
|
// @params
|
|
// callParams: [IN] parameter list
|
|
// functionPtr: [IN] function to call.
|
|
//
|
|
// @returns:
|
|
// true: function was called.
|
|
// false: too many parameters, probably.
|
|
//
|
|
bool GenRPC::CallWithStack( CallParams& call, void *functionPtr ) {
|
|
#if AUTO_RPC_ABI
|
|
// Are we x86-32?
|
|
#if !defined( AUTO_RPC_NO_ASM ) && ( defined(__i386__) || defined( _M_IX86 ) || defined( __INTEL__ ) )
|
|
#if !defined(__GNUC__)
|
|
// Intel dialect assembly
|
|
NaturalWord const paramc = call.numIntParams;
|
|
#pragma warning(disable:4311) // pointer truncation
|
|
NaturalWord const paramv = reinterpret_cast<NaturalWord>( call.intParams );
|
|
_asm
|
|
{
|
|
|
|
// Load numbytes.
|
|
mov ecx, paramc
|
|
|
|
// allocate space on the stack for all these params
|
|
lea edi,dword ptr[ecx * 4]
|
|
sub esp,edi
|
|
|
|
// setup source of copy
|
|
mov esi, paramv
|
|
|
|
// Setup the destination of the copy: the return stack.
|
|
mov edi,esp
|
|
|
|
// copy data
|
|
rep movs dword ptr es:[edi],dword ptr [esi]
|
|
|
|
// call the function
|
|
call functionPtr
|
|
|
|
// Restore the stack to its state, prior to our invocation.
|
|
//
|
|
// Detail: edi is one of the registers that must be preserved
|
|
// across function calls. (The compiler should be saving it for us.)
|
|
//
|
|
// We left edi pointing to the end of the block copied; i.e. the state
|
|
// of the stack prior to copying our params. So by loading it
|
|
// into the esp we can restore the return stack to the state prior
|
|
// to the copy.
|
|
//
|
|
mov esp,edi
|
|
};
|
|
#else
|
|
// GCC has its own form of asm block - so we'll always have to write two versions.
|
|
// Therefore, as we're writing it twice, we use the ATT dialect, because only later
|
|
// gcc support Intel dialect. This one also aligns the stack to a multiple of 16 bytes; which
|
|
// windows doesn't seem to care about.
|
|
// Be aware, we can't use offset of to get the address, as gcc insists on sticking.
|
|
// NaturalWord const paramv = reinterpret_cast<NaturalWord>( call.intParams );
|
|
asm (\
|
|
"lea 4(%%ecx),%%esi\n\
|
|
mov (%%ecx),%%ecx\n\
|
|
lea (,%%ecx,4),%%edi\n\
|
|
sub %%edi,%%esp\n\
|
|
mov $12,%%edx\n\
|
|
and %%esp,%%edx\n\
|
|
sub %%edx,%%esp\n\
|
|
mov %%esp,%%edi\n\
|
|
rep movsl %%ds:(%%esi),%%es:(%%edi)\n\
|
|
add %%edx,%%edi\n\
|
|
call *%1\n\
|
|
mov %%edi,%%esp"\
|
|
: /* no outputs */\
|
|
: "c" ( &call ), "m" (functionPtr)\
|
|
: "%edi" , "%esi", "%edx", "%eax"\
|
|
);
|
|
#endif // GNUC vs non GNUC
|
|
return 1;
|
|
#elif !defined( AUTO_RPC_NO_ASM ) && ( defined( _M_X64 ) || defined( __x86_64__ ) || defined( _M_AMD64 ) )
|
|
#if AUTO_RPC_ABI == AUTO_RPC_ABI_WIN_AMD64
|
|
NaturalWord const paramv = reinterpret_cast<NaturalWord>( call.intParams );
|
|
_asm {
|
|
// rcx := number of qwords to copy
|
|
mov rcx, paramc
|
|
|
|
// r9 := 0
|
|
sub r9,r9
|
|
|
|
// rsi => our parameter list.
|
|
mov rsi, paramv
|
|
|
|
// r9 := -(number of qwords to copy)
|
|
sub r9,rcx
|
|
|
|
// Preparation to align the stack to 16 byte boundary
|
|
mov rdx,8
|
|
|
|
// rdi => projected bottom of stack
|
|
lea rdi,dword ptr[rsp + r9 * 8]
|
|
|
|
// figure out if stack needs aligning
|
|
and rdx,rdi
|
|
|
|
// save stack into rbx
|
|
mov rbx,rsp
|
|
|
|
// align stack
|
|
sub rdi,rdx
|
|
mov rsp,rdi
|
|
|
|
// rdx => our parameter list
|
|
mov rdx,rsi
|
|
|
|
//
|
|
// copy data - we copy all parameters, because we have to
|
|
// create a shadow area; and this way its easiest.
|
|
//
|
|
rep movs qword ptr es:[edi],qword ptr [esi]
|
|
|
|
// load registers
|
|
// rcx|xmm0, rdx|xmm1,r8|xmm2,r9|xmm3
|
|
mov rcx,qword ptr [rdx]
|
|
mov r8,qword ptr 16[rdx]
|
|
movq xmm0,rcx
|
|
mov r9,qword ptr 24[rdx]
|
|
movq xmm2,r8
|
|
mov rdx,qword ptr 8[rdx]
|
|
movq xmm3,r9
|
|
movq xmm1,rdx
|
|
|
|
// call the function
|
|
call functionPtr
|
|
|
|
// Restore the stack to its state, prior to our invocation -
|
|
// saved in rbx.
|
|
mov rsp,rbx
|
|
}
|
|
#elif AUTO_RPC_ABI == AUTO_RPC_ABI_SYSV_AMD64
|
|
//
|
|
// GCC won't generate a stack frame on higher optimization levels, so we don't touch it.
|
|
// on -O3 it inlines the code, breaking it because of the jump reference.
|
|
//
|
|
// I figure a 64-bit compiler will be recent enough to do Intel syntax. May need to change
|
|
// my mind on that. NB. Structure members are hard coded into this.
|
|
//
|
|
asm (\
|
|
".intel_syntax noprefix\n\
|
|
push rbx\n\
|
|
mov rax,rsi\n\
|
|
push r15\n\
|
|
mov ecx,dword ptr[rdi+8+8*8]\n\
|
|
lea rsi,[rdi+8+8*8+8]\n\
|
|
mov r15,rsp\n\
|
|
lea rbx,[rdi+8]\n\
|
|
sub r8,r8\n\
|
|
sub rsp,8\n\
|
|
sub rcx,6\n\
|
|
lea r9,[rsi + 6 * 8]\n\
|
|
jbe .L1\n\
|
|
sub r8,rcx\n\
|
|
mov rdx,8\n\
|
|
lea rdi,qword ptr[rsp + r8 * 8]\n\
|
|
and rdx,rdi\n\
|
|
mov rsi,r9\n\
|
|
sub rdi,rdx\n\
|
|
mov rsp,rdi\n\
|
|
rep movsq \n\
|
|
.L1:\n\
|
|
movq xmm0,[rbx]\n\
|
|
movq xmm1,[rbx+8]\n\
|
|
movq xmm2,[rbx+16]\n\
|
|
movq xmm3,[rbx+24]\n\
|
|
movq xmm4,[rbx+32]\n\
|
|
movq xmm5,[rbx+40]\n\
|
|
movq xmm6,[rbx+48]\n\
|
|
movq xmm7,[rbx+56]\n\
|
|
mov rdi,[r9-48]\n\
|
|
mov rsi,[r9-40]\n\
|
|
mov rdx,[r9-32]\n\
|
|
mov rcx,[r9-24]\n\
|
|
mov r8,[r9-16]\n\
|
|
mov r9,[r9-8]\n\
|
|
call rax\n\
|
|
mov rsp,r15\n\
|
|
pop r15\n\
|
|
pop rbx\n\
|
|
.att_syntax prefix"\
|
|
: /* no outputs */\
|
|
: "D" ( &call ), "S" (functionPtr)\
|
|
: "%rdx", "%rcx" , "%r8", "%r9", "%rax",\
|
|
"%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7" );
|
|
// : "D", ( &call ), "c" ( &call.numIntParams ), "S" ( paramv ), "b" ( floatv ), "a" (functionPtr)
|
|
#else
|
|
#error unsupport ABI
|
|
#endif
|
|
return 1;
|
|
#else
|
|
// AUTO_RPC_NO_ASM or no x86-32/x86-64
|
|
//
|
|
// 4. Passing the parameters.
|
|
//
|
|
// The compiler knows how to call functions, so having sorted out the argument list,
|
|
// we just pass it to a function of the correct form - and let the compiler align stacks,
|
|
// load registers, place parameters where they should be.
|
|
//
|
|
// This is particularly important as GCC has control over the stack frame, and it can
|
|
// improperly frame it - for instance utilising red zones to save args, rather than pushing them.
|
|
// On PowerPC it must create the parameter passing area, too.
|
|
//
|
|
// The most brute force way, is to code a function call for every possible number of parameters
|
|
//
|
|
// switch( paramc ) {
|
|
// case 1: ( (void(AUTO_RPC_CALLSPEC*)(NaturalWord)) myfunc)( callParam[0] ); break;
|
|
// case 2: ( (void(AUTO_RPC_CALLSPEC*)(NaturalWord,NaturalWord)) myfunc)( callParam[0], callParam[1] ); break;
|
|
// ...
|
|
// case 64: ( (void(AUTO_RPC_CALLSPEC*)(NaturalWord,NaturalWord)) myfunc)( callParam[0], callParam[1], ... , callParam[63] ); break;
|
|
// }
|
|
//
|
|
// This is the only way to code WIN32 stdcall, for example, as the args must match exactly;
|
|
// and so the only way to call from C if you need to call WINAPI routines.
|
|
//
|
|
// 2) Fortunately most calling conventions allowing excessive args. So this means we could
|
|
// write something like below:
|
|
//
|
|
// ( (void(*)(...)) myfunc )( args[0],...,args[63] );
|
|
//
|
|
// And although this should work, its a huge performance penalty copying between memory
|
|
// locations for so many args.
|
|
//
|
|
// So we compromise - and do a stepped sequence. Noticing that the WIN64 ABI alwys requires
|
|
// space for three args anyway.
|
|
//
|
|
// And on SysV x64 systems, the first 6 args are passed in reg; so again, these are only
|
|
// copies into register, not memory copies. And finally that if we load word[n], word[n+1]
|
|
// is loaded into the cache - thus the overhead for loading is not as big as it might be.
|
|
//
|
|
// For most realistic cases, a dozen args would be excessive. Obviously, if you have
|
|
// a tested assembler equivalent, its probably better to use that.
|
|
//
|
|
//
|
|
#if AUTO_RPC_FLOAT_REG_PARAMS
|
|
if ( call.numRealParams == 0 )
|
|
#endif
|
|
{
|
|
if ( call.numIntParams <= 3 )
|
|
{
|
|
( (void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_3)) functionPtr )( AUTO_RPC_INT_ARGS_3( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 6 )
|
|
{
|
|
( (void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_6)) functionPtr )( AUTO_RPC_INT_ARGS_6( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 9 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_9))functionPtr)( AUTO_RPC_INT_ARGS_9( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 12 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_12))functionPtr)( AUTO_RPC_INT_ARGS_12( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 32 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_32))functionPtr)( AUTO_RPC_INT_ARGS_32( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 64 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_64))functionPtr)( AUTO_RPC_INT_ARGS_64( call ) );
|
|
return 1;
|
|
}
|
|
}
|
|
#if AUTO_RPC_FLOAT_REG_PARAMS && !AUTO_RPC_ALLOC_SEPARATE_FLOATS
|
|
else
|
|
{
|
|
if ( call.numIntParams > 64 ) return 0;
|
|
|
|
switch( call.realMap )
|
|
{
|
|
// case 0: - no floats, never happens here.
|
|
|
|
case 1: ( (void(AUTO_RPC_CALLSPEC*)(HardwareReal,NaturalWord,NaturalWord,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.intParams[1], call.intParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 2:
|
|
((void(AUTO_RPC_CALLSPEC*)(NaturalWord,HardwareReal,NaturalWord,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.realParams[1], call.intParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 3:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,HardwareReal,NaturalWord,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.realParams[1], call.intParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 4: ( (void(AUTO_RPC_CALLSPEC*)(NaturalWord,NaturalWord,HardwareReal,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.intParams[1], call.realParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 5:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,NaturalWord,HardwareReal,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.intParams[1], call.realParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 6:
|
|
((void(AUTO_RPC_CALLSPEC*)(NaturalWord,HardwareReal,HardwareReal,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.realParams[1], call.realParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 7:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,HardwareReal,HardwareReal,NaturalWord,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.realParams[1], call.realParams[2], call.intParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 8: ( (void(AUTO_RPC_CALLSPEC*)(NaturalWord,NaturalWord,NaturalWord,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.intParams[1], call.intParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 9:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,NaturalWord,NaturalWord,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.intParams[1], call.intParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
case 10:
|
|
((void(AUTO_RPC_CALLSPEC*)(NaturalWord,HardwareReal,NaturalWord,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.realParams[1], call.intParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
|
|
case 11:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,HardwareReal,NaturalWord,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.realParams[1], call.intParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 12: ( (void(AUTO_RPC_CALLSPEC*)(NaturalWord,NaturalWord,HardwareReal,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.intParams[1], call.realParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 13:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,NaturalWord,HardwareReal,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.intParams[1], call.realParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 14:
|
|
((void(AUTO_RPC_CALLSPEC*)(NaturalWord,HardwareReal,HardwareReal,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.intParams[0], call.realParams[1], call.realParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
case 15:
|
|
((void(AUTO_RPC_CALLSPEC*)(HardwareReal,HardwareReal,HardwareReal,HardwareReal,AUTO_RPC_NW_4_64))functionPtr)(
|
|
call.realParams[0], call.realParams[1], call.realParams[2], call.realParams[3],
|
|
AUTO_RPC_INT_ARGS_4_64( call )
|
|
);
|
|
break;
|
|
|
|
default: return 0;
|
|
}
|
|
}
|
|
#elif AUTO_RPC_FLOAT_REG_PARAMS
|
|
else
|
|
{
|
|
// we pass FLOAT args last for powerpc compatibility. And although it means we pass them twice,
|
|
// they should end up in the correct floating point register, with the rest of the integers in the
|
|
// correct place...
|
|
//
|
|
// NB if you want to write inline asm for powerpc, you'll have to be put it in a separate
|
|
// "naked" function to that uou can setup the parameter passing area and ensure its big enough.
|
|
// (GCC will delete functions that are unused - it will delete the body of functions that
|
|
// aren't called.)
|
|
//
|
|
if ( call.numIntParams <= 3 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_3,AUTO_RPC_FLOAT_REG_TYPE))functionPtr)( AUTO_RPC_INT_ARGS_3( call ), AUTO_RPC_FLOAT_REG_ARGS( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 6 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_6,AUTO_RPC_FLOAT_REG_TYPE))functionPtr)( AUTO_RPC_INT_ARGS_6( call ),AUTO_RPC_FLOAT_REG_ARGS( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 9 )
|
|
{
|
|
((void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_9,AUTO_RPC_FLOAT_REG_TYPE))functionPtr)( AUTO_RPC_INT_ARGS_9( call ),AUTO_RPC_FLOAT_REG_ARGS( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 12 )
|
|
{
|
|
( (void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_12,AUTO_RPC_FLOAT_REG_TYPE)) functionPtr )( AUTO_RPC_INT_ARGS_12( call ), AUTO_RPC_FLOAT_REG_ARGS( call ) );
|
|
return 1;
|
|
}
|
|
if ( call.numIntParams <= 64 )
|
|
{
|
|
( (void(AUTO_RPC_CALLSPEC*)(AUTO_RPC_NW_64,AUTO_RPC_FLOAT_REG_TYPE)) functionPtr )( AUTO_RPC_INT_ARGS_64( call ), AUTO_RPC_FLOAT_REG_ARGS( call ) );
|
|
return 1;
|
|
}
|
|
}
|
|
#endif // AUTO_RPC_FLOAT_REG_PARAMS
|
|
return 0;
|
|
#endif // AUTO_RPC_NO_ASM
|
|
#else // AUTO_RPC_ABI
|
|
return 0;
|
|
#endif
|
|
}
|
|
// --8<---8<----8<----8<---END
|
|
|