struct load_command *doloadcommand(void *start, struct load_command *lc, bool needsFlip, bool is32, struct gcinfo *gcip) {
if (needsFlip) {
lc->cmd = OSSwapInt32(lc->cmd);
lc->cmdsize = OSSwapInt32(lc->cmdsize);
}
switch(lc->cmd) {
case LC_SEGMENT_64:
if (debug) printf("...segment64\n");
if (is32) printf("XXX we have a 64-bit segment in a 32-bit mach-o\n");
doseg64(start, (struct segment_command_64 *)lc, needsFlip, gcip);
break;
case LC_SEGMENT:
if (debug) printf("...segment32\n");
doseg32(start, (struct segment_command *)lc, needsFlip, gcip);
break;
case LC_SYMTAB: if (debug) printf("...dynamic symtab\n"); break;
case LC_DYSYMTAB: if (debug) printf("...symtab\n"); break;
case LC_LOAD_DYLIB:
dodylib(start, (struct dylib_command *)lc, needsFlip);
break;
case LC_SUB_UMBRELLA: if (debug) printf("...load subumbrella\n"); break;
default: if (debug) printf("cmd is %x\n", lc->cmd); break;
}
return (struct load_command *)((void *)lc + lc->cmdsize);
}
IOReturn SamplePCIUserClientClassName::method1(
UInt32 * dataIn, UInt32 * dataOut,
IOByteCount inputSize, IOByteCount * outputSize )
{
IOReturn ret;
IOItemCount count;
IOLog("SamplePCIUserClient::method1(");
if (*outputSize < inputSize)
return( kIOReturnNoSpace );
count = inputSize / sizeof( UInt32 );
for (UInt32 i = 0; i < count; i++ ) {
// Client app is running using Rosetta
if (fCrossEndian) {
dataIn[i] = OSSwapInt32(dataIn[i]);
}
IOLog("" UInt32_x_FORMAT ", ", dataIn[i]);
dataOut[i] = dataIn[i] ^ 0xffffffff;
// Rosetta again
if (fCrossEndian) {
dataOut[i] = OSSwapInt32(dataOut[i]);
}
}
ret = kIOReturnSuccess;
IOLog(")\n");
*outputSize = count * sizeof( UInt32 );
return( ret );
}
void
swap_thread_command(
struct thread_command *ut,
enum NXByteOrder target_byte_sex)
{
ut->cmd = OSSwapInt32(ut->cmd);
ut->cmdsize = OSSwapInt32(ut->cmdsize);
}
void
swap_x86_state_hdr(
x86_state_hdr_t *hdr,
enum NXByteOrder target_byte_sex)
{
hdr->flavor = OSSwapInt32(hdr->flavor);
hdr->count = OSSwapInt32(hdr->count);
}
void
swap_uuid_command(
struct uuid_command *uuid_cmd,
enum NXByteOrder target_byte_sex)
{
uuid_cmd->cmd = OSSwapInt32(uuid_cmd->cmd);
uuid_cmd->cmdsize = OSSwapInt32(uuid_cmd->cmdsize);
}
void
swap_fat_header(
struct fat_header *fat_header,
enum NXByteOrder target_byte_sex)
{
fat_header->magic = OSSwapInt32(fat_header->magic);
fat_header->nfat_arch = OSSwapInt32(fat_header->nfat_arch);
}
void
swap_ident_command(
struct ident_command *id_cmd,
enum NXByteOrder target_byte_sex)
{
id_cmd->cmd = OSSwapInt32(id_cmd->cmd);
id_cmd->cmdsize = OSSwapInt32(id_cmd->cmdsize);
}
void
swap_load_command(
struct load_command *lc,
enum NXByteOrder target_byte_sex)
{
lc->cmd = OSSwapInt32(lc->cmd);
lc->cmdsize = OSSwapInt32(lc->cmdsize);
}
void
swap_sub_client_command(
struct sub_client_command *csub,
enum NXByteOrder target_byte_sex)
{
csub->cmd = OSSwapInt32(csub->cmd);
csub->cmdsize = OSSwapInt32(csub->cmdsize);
csub->client.offset = OSSwapInt32(csub->client.offset);
}
void
swap_sub_library_command(
struct sub_library_command *lsub,
enum NXByteOrder target_byte_sex)
{
lsub->cmd = OSSwapInt32(lsub->cmd);
lsub->cmdsize = OSSwapInt32(lsub->cmdsize);
lsub->sub_library.offset = OSSwapInt32(lsub->sub_library.offset);
}
void
swap_sub_umbrella_command(
struct sub_umbrella_command *usub,
enum NXByteOrder target_byte_sex)
{
usub->cmd = OSSwapInt32(usub->cmd);
usub->cmdsize = OSSwapInt32(usub->cmdsize);
usub->sub_umbrella.offset = OSSwapInt32(usub->sub_umbrella.offset);
}
void
swap_sub_framework_command(
struct sub_framework_command *sub,
enum NXByteOrder target_byte_sex)
{
sub->cmd = OSSwapInt32(sub->cmd);
sub->cmdsize = OSSwapInt32(sub->cmdsize);
sub->umbrella.offset = OSSwapInt32(sub->umbrella.offset);
}
void
swap_dylinker_command(
struct dylinker_command *dyld,
enum NXByteOrder target_byte_sex)
{
dyld->cmd = OSSwapInt32(dyld->cmd);
dyld->cmdsize = OSSwapInt32(dyld->cmdsize);
dyld->name.offset = OSSwapInt32(dyld->name.offset);
}
void
swap_prebind_cksum_command(
struct prebind_cksum_command *cksum_cmd,
enum NXByteOrder target_byte_sex)
{
cksum_cmd->cmd = OSSwapInt32(cksum_cmd->cmd);
cksum_cmd->cmdsize = OSSwapInt32(cksum_cmd->cmdsize);
cksum_cmd->cksum = OSSwapInt32(cksum_cmd->cksum);
}
void
swap_i386_exception_state(
i386_exception_state_t *exc,
enum NXByteOrder target_byte_sex)
{
exc->trapno = OSSwapInt32(exc->trapno);
exc->err = OSSwapInt32(exc->err);
exc->faultvaddr = OSSwapInt32(exc->faultvaddr);
}
PhysicalAddressSpace::PhysicalAddressSpace( Device& inUserClient, UserObjectHandle inKernPhysicalAddrSpaceRef,
UInt32 inSize, void* inBackingStore, UInt32 inFlags)
: IOFireWireIUnknown( reinterpret_cast<const IUnknownVTbl &>( sInterface ) ),
mUserClient(inUserClient),
mKernPhysicalAddrSpaceRef(inKernPhysicalAddrSpaceRef),
mSize(inSize),
mBackingStore(inBackingStore),
mSegments( NULL ),
mSegmentCount(0)
{
inUserClient.AddRef() ;
if (!mKernPhysicalAddrSpaceRef)
throw kIOReturnNoMemory ;
uint32_t outputCnt = 1;
uint64_t outputVal = 0;
IOReturn error = IOConnectCallScalarMethod( mUserClient.GetUserClientConnection(),
mUserClient.MakeSelectorWithObject( kPhysicalAddrSpace_GetSegmentCount_d, mKernPhysicalAddrSpaceRef ),
NULL,0,
&outputVal,&outputCnt);
mSegmentCount = outputVal & 0xFFFFFFFF;
if ( error || mSegmentCount == 0)
throw error ;
mSegments = new FWPhysicalSegment32[mSegmentCount] ;
if (!mSegments)
{
throw kIOReturnNoMemory ;
}
outputCnt = 1;
outputVal = 0;
const uint64_t inputs[3] = {(const uint64_t)mKernPhysicalAddrSpaceRef, mSegmentCount, (const uint64_t)mSegments};
error = IOConnectCallScalarMethod( mUserClient.GetUserClientConnection(),
kPhysicalAddrSpace_GetSegments,
inputs,3,
&outputVal,&outputCnt);
mSegmentCount = outputVal & 0xFFFFFFFF;
if (error)
{
throw error ;
}
#ifndef __LP64__
ROSETTA_ONLY(
{
UInt32 i;
for( i = 0; i < mSegmentCount; i++ )
{
mSegments[i].location = OSSwapInt32( mSegments[i].location );
mSegments[i].length = OSSwapInt32( mSegments[i].length );
}
}
);
void
swap_symseg_command(
struct symseg_command *ss,
enum NXByteOrder target_byte_sex)
{
ss->cmd = OSSwapInt32(ss->cmd);
ss->cmdsize = OSSwapInt32(ss->cmdsize);
ss->offset = OSSwapInt32(ss->offset);
ss->size = OSSwapInt32(ss->size);
}
void
swap_fvmfile_command(
struct fvmfile_command *ff,
enum NXByteOrder target_byte_sex)
{
ff->cmd = OSSwapInt32(ff->cmd);
ff->cmdsize = OSSwapInt32(ff->cmdsize);
ff->name.offset = OSSwapInt32(ff->name.offset);
ff->header_addr = OSSwapInt32(ff->header_addr);
}
/*
* This routine returns the section structure for the named section in the
* named segment for the mach_header pointer passed to it if it exist.
* Otherwise it returns zero. If fSwap == YES (the mach header has been
* swapped to the endiannes of the current machine, but the segments and
* sections are different) then the segment and sections are swapped.
*/
const struct section *
getsectbynamefromheaderwithswap(
struct mach_header *mhp,
const char *segname,
const char *sectname,
int fSwap)
{
struct segment_command *sgp;
struct section *sp;
uint32_t i, j;
sgp = (struct segment_command *)
((char *)mhp + sizeof(struct mach_header));
for(i = 0; i < mhp->ncmds; i++) {
if(sgp->cmd == (fSwap ? OSSwapInt32(LC_SEGMENT) : LC_SEGMENT)) {
if (fSwap) {
#ifdef __LITTLE_ENDIAN__
swap_segment_command(sgp, NX_BigEndian);
#else
swap_segment_command(sgp, NX_LittleEndian);
#endif /* __LITTLE_ENDIAN__ */
}
if(strncmp(sgp->segname, segname, sizeof(sgp->segname)) == 0 ||
mhp->filetype == MH_OBJECT) {
sp = (struct section *)((char *)sgp +
sizeof(struct segment_command));
if (fSwap) {
#ifdef __LITTLE_ENDIAN__
swap_section(sp, sgp->nsects, NX_BigEndian);
#else
swap_section(sp, sgp->nsects, NX_LittleEndian);
#endif /* __LITTLE_ENDIAN__ */
}
for(j = 0; j < sgp->nsects; j++) {
if(strncmp(sp->sectname, sectname,
sizeof(sp->sectname)) == 0 &&
strncmp(sp->segname, segname,
sizeof(sp->segname)) == 0)
return(sp);
sp = (struct section *)((char *)sp +
sizeof(struct section));
}
}
sgp = (struct segment_command *)((char *)sgp + sgp->cmdsize);
} else {
sgp = (struct segment_command *)((char *)sgp +
(fSwap ? OSSwapInt32(sgp->cmdsize) : sgp->cmdsize));
}
}
return((struct section *)0);
}
void
swap_fvmlib_command(
struct fvmlib_command *fl,
enum NXByteOrder target_byte_sex)
{
fl->cmd = OSSwapInt32(fl->cmd);
fl->cmdsize = OSSwapInt32(fl->cmdsize);
fl->fvmlib.name.offset = OSSwapInt32(fl->fvmlib.name.offset);
fl->fvmlib.minor_version = OSSwapInt32(fl->fvmlib.minor_version);
fl->fvmlib.header_addr = OSSwapInt32(fl->fvmlib.header_addr);
}
void
swap_prebound_dylib_command(
struct prebound_dylib_command *pbdylib,
enum NXByteOrder target_byte_sex)
{
pbdylib->cmd = OSSwapInt32(pbdylib->cmd);
pbdylib->cmdsize = OSSwapInt32(pbdylib->cmdsize);
pbdylib->name.offset = OSSwapInt32(pbdylib->name.offset);
pbdylib->nmodules = OSSwapInt32(pbdylib->nmodules);
pbdylib->linked_modules.offset =
OSSwapInt32(pbdylib->linked_modules.offset);
}
void
swap_dylib_table_of_contents(
struct dylib_table_of_contents *tocs,
uint32_t ntocs,
enum NXByteOrder target_byte_sex)
{
uint32_t i;
for(i = 0; i < ntocs; i++){
tocs[i].symbol_index = OSSwapInt32(tocs[i].symbol_index);
tocs[i].module_index = OSSwapInt32(tocs[i].module_index);
}
}
void
swap_ranlib(
struct ranlib *ranlibs,
uint32_t nranlibs,
enum NXByteOrder target_byte_sex)
{
uint32_t i;
for(i = 0; i < nranlibs; i++){
ranlibs[i].ran_un.ran_strx = OSSwapInt32(ranlibs[i].ran_un.ran_strx);
ranlibs[i].ran_off = OSSwapInt32(ranlibs[i].ran_off);
}
}
void dosect32(void *start, struct section *sect, bool needsFlip, struct gcinfo *gcip) {
if (debug) printf("section %s from segment %s\n", sect->sectname, sect->segname);
if (strcmp(sect->segname, "__OBJC")) return;
gcip->hasObjC = true;
if (strcmp(sect->sectname, "__image_info")) return;
gcip->hasInfo = true;
if (needsFlip) {
sect->offset = OSSwapInt32(sect->offset);
sect->size = OSSwapInt32(sect->size);
}
// these guys aren't inline - they point elsewhere
gcip->flags = iiflags(start + sect->offset, sect->size, needsFlip);
}
void
swap_m68k_thread_state_regs(
struct m68k_thread_state_regs *cpu,
enum NXByteOrder target_byte_sex)
{
uint32_t i;
for(i = 0; i < 8; i++)
cpu->dreg[i] = OSSwapInt32(cpu->dreg[i]);
for(i = 0; i < 8; i++)
cpu->areg[i] = OSSwapInt32(cpu->areg[i]);
cpu->pad0 = OSSwapInt16(cpu->pad0);
cpu->sr = OSSwapInt16(cpu->sr);
cpu->pc = OSSwapInt32(cpu->pc);
}
/*
* driver initialization after the matching has completed...
*/
bool SamplePCIUserClientClassName::start(IOService* provider)
{
IOLog("%s[%p]::%s(provider = %p)\n", getName(), this, __FUNCTION__, provider);
if (!super::start(provider))
return false;
/*
* Our provider should be a SamplePCI object. Verify that before proceeding.
*/
assert(OSDynamicCast(SamplePCIClassName, provider));
fDriver = (SamplePCIClassName*) provider;
/*
* Set up some memory to be shared between this user client instance and its
* client process. The client will call in to map this memory, and I/O Kit
* will call clientMemoryForType to obtain this memory descriptor.
*/
fClientSharedMemory = IOBufferMemoryDescriptor::withOptions(kIOMemoryKernelUserShared, sizeof(SampleSharedMemory));
if (!fClientSharedMemory)
return false;
fClientShared = (SampleSharedMemory *) fClientSharedMemory->getBytesNoCopy();
fClientShared->field1 = 0x11111111; // same in all endianesses...
fClientShared->field2 = 0x22222222; // ditto
fClientShared->field3 = 0x33333333; // ditto
if (fCrossEndian) {
// Swap the fields so the user process sees the proper endianness
fClientShared->field1 = OSSwapInt32(fClientShared->field1);
fClientShared->field2 = OSSwapInt32(fClientShared->field2);
fClientShared->field3 = OSSwapInt32(fClientShared->field3);
}
#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4
// strlcpy() doesn't exist in the MacOSX10.4u SDK.
(void)strncpy(fClientShared->string, "some data", sizeof(fClientShared->string) - 1);
fClientShared->string[sizeof(fClientShared->string) - 1] = '\0';
#else
(void) strlcpy(fClientShared->string, "some data", sizeof(fClientShared->string));
#endif
fOpenCount = 1;
return true;
}
void
swap_m68k_thread_state_user_reg(
struct m68k_thread_state_user_reg *user_reg,
enum NXByteOrder target_byte_sex)
{
user_reg->user_reg = OSSwapInt32(user_reg->user_reg);
}
static unsigned long swap(unsigned long x)
{
if (swap_ends)
return OSSwapInt32(x);
else
return x;
}
void
swap_nlist(
struct nlist *symbols,
uint32_t nsymbols,
enum NXByteOrder target_byte_sex)
{
uint32_t i;
for(i = 0; i < nsymbols; i++){
symbols[i].n_un.n_strx = OSSwapInt32(symbols[i].n_un.n_strx);
/* n_type */
/* n_sect */
symbols[i].n_desc = OSSwapInt16(symbols[i].n_desc);
symbols[i].n_value = OSSwapInt32(symbols[i].n_value);
}
}
static void avcCommandHandlerCallback( void *refcon, IOReturn result, io_user_reference_t *args, int numArgs)
{
AVCProtocol *me = (AVCProtocol *)refcon;
UInt32 pos;
UInt32 len;
const UInt8* src;
UInt32 fixedArgs[kMaxAsyncArgs];
UInt32 i;
uint64_t inArg[4];
uint32_t outputScalarCnt = 0;
size_t outputStructSize = 0;
//printf("DEBUG: AVCProtocol::avcCommandHandlerCallback\n");
// First copy all the args with endian byte-swapping. Note that only
// the args that contain command-bytes need this, but doing them all
// here simplifies the logic below.
IF_ROSETTA()
{
// Note: This code assumes ROSETTA only happens for in 32-bit mode!
for (i=0;i<numArgs;i++)
fixedArgs[i] = (OSSwapInt32(args[i]) & 0xFFFFFFFF);
}
else
{
for (i=0;i<numArgs;i++)
