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templates to prepare for Mach-O i386 and Universal ("fat") executables

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This commit is contained in:
John Reiser
2007-01-31 20:25:13 -08:00
parent 78364ac830
commit 8b1cc28783
3 changed files with 445 additions and 146 deletions
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src/p_mach.cpp
+52 -32
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@@ -39,12 +39,17 @@ static const
static const
#include "stub/powerpc-darwin.macho-fold.h"
PackMachPPC32::PackMachPPC32(InputFile *f) :
super(f), n_segment(0), rawmseg(0), msegcmd(0)
template <class T>
PackMachBase<T>::PackMachBase(InputFile *f, unsigned flavor, unsigned count,
unsigned size) :
super(f), my_thread_flavor(flavor), my_thread_state_word_count(count),
my_thread_command_size(size),
n_segment(0), rawmseg(0), msegcmd(0)
{
}
PackMachPPC32::~PackMachPPC32()
template <class T>
PackMachBase<T>::~PackMachBase()
{
delete [] msegcmd;
delete [] rawmseg;
@@ -69,8 +74,9 @@ Linker *PackMachPPC32::newLinker() const
return new ElfLinkerPpc32;
}
template <class T>
void
PackMachPPC32::addStubEntrySections(Filter const *)
PackMachBase<T>::addStubEntrySections(Filter const *)
{
addLoader("MACOS000", NULL);
//addLoader(getDecompressorSections(), NULL);
@@ -84,14 +90,16 @@ PackMachPPC32::addStubEntrySections(Filter const *)
}
void PackMachPPC32::defineSymbols(Filter const *)
template <class T>
void PackMachBase<T>::defineSymbols(Filter const *)
{
// empty
}
template <class T>
void
PackMachPPC32::buildMachLoader(
PackMachBase<T>::buildMachLoader(
upx_byte const *const proto,
unsigned const szproto,
upx_byte const *const fold,
@@ -142,11 +150,15 @@ PackMachPPC32::buildLoader(const Filter *ft)
stub_powerpc_darwin_macho_entry, sizeof(stub_powerpc_darwin_macho_entry),
stub_powerpc_darwin_macho_fold, sizeof(stub_powerpc_darwin_macho_fold), ft );
}
void PackMachPPC32::patchLoader() { }
void PackMachPPC32::updateLoader(OutputFile *) {}
void
PackMachPPC32::patchLoaderChecksum()
template <class T>
void PackMachBase<T>::patchLoader() { }
template <class T>
void PackMachBase<T>::updateLoader(OutputFile *) {}
template <class T>
void PackMachBase<T>::patchLoaderChecksum()
{
unsigned char *const ptr = getLoader();
l_info *const lp = &linfo;
@@ -160,8 +172,9 @@ PackMachPPC32::patchLoaderChecksum()
lp->l_checksum = upx_adler32(ptr, lsize);
}
static int __acc_cdecl_qsort
compare_segment_command(void const *const aa, void const *const bb)
template <class T>
int __acc_cdecl_qsort
PackMachBase<T>::compare_segment_command(void const *const aa, void const *const bb)
{
Mach_segment_command const *const a = (Mach_segment_command const *)aa;
Mach_segment_command const *const b = (Mach_segment_command const *)bb;
@@ -174,8 +187,7 @@ compare_segment_command(void const *const aa, void const *const bb)
return 0;
}
void
PackMachPPC32::pack4(OutputFile *fo, Filter &ft) // append PackHeader
void PackMachPPC32::pack4(OutputFile *fo, Filter &ft) // append PackHeader
{
// offset of p_info in compressed file
overlay_offset = sizeof(mhdro) + sizeof(segcmdo) + sizeof(threado) + sizeof(linfo);
@@ -189,8 +201,7 @@ PackMachPPC32::pack4(OutputFile *fo, Filter &ft) // append PackHeader
fo->write(&linfo, sizeof(linfo));
}
void
PackMachPPC32::pack3(OutputFile *fo, Filter &ft) // append loader
void PackMachPPC32::pack3(OutputFile *fo, Filter &ft) // append loader
{
BE32 disp;
unsigned const zero = 0;
@@ -208,7 +219,8 @@ PackMachPPC32::pack3(OutputFile *fo, Filter &ft) // append loader
// which follows in the file (or end-of-file). Optimize for common case
// where the PT_LOAD are adjacent ascending by .p_offset. Assume no overlap.
unsigned PackMachPPC32::find_SEGMENT_gap(
template <class T>
unsigned PackMachBase<T>::find_SEGMENT_gap(
unsigned const k
)
{
@@ -242,8 +254,8 @@ unsigned PackMachPPC32::find_SEGMENT_gap(
return lo - hi;
}
void
PackMachPPC32::pack2(OutputFile *fo, Filter &ft) // append compressed body
template <class T>
void PackMachBase<T>::pack2(OutputFile *fo, Filter &ft) // append compressed body
{
Extent x;
unsigned k;
@@ -304,12 +316,23 @@ PackMachPPC32::pack2(OutputFile *fo, Filter &ft) // append compressed body
#undef PAGE_SIZE
#define PAGE_MASK (~0u<<12)
#define PAGE_SIZE -PAGE_MASK
void
PackMachPPC32::pack1(OutputFile *fo, Filter &/*ft*/) // generate executable header
void PackMachPPC32::pack1_setup_threado(OutputFile *const fo)
{
threado.cmd = Mach_segment_command::LC_UNIXTHREAD;
threado.cmdsize = sizeof(threado);
threado.flavor = my_thread_flavor;
threado.count = my_thread_state_word_count;
memset(&threado.state, 0, sizeof(threado.state));
fo->write(&threado, sizeof(threado));
}
template <class T>
void PackMachBase<T>::pack1(OutputFile *const fo, Filter &/*ft*/) // generate executable header
{
mhdro = mhdri;
mhdro.ncmds = 2;
mhdro.sizeofcmds = sizeof(segcmdo) + sizeof(threado);
mhdro.sizeofcmds = sizeof(segcmdo) + my_thread_command_size;
mhdro.flags = Mach_header::MH_NOUNDEFS;
fo->write(&mhdro, sizeof(mhdro));
@@ -329,12 +352,7 @@ PackMachPPC32::pack1(OutputFile *fo, Filter &/*ft*/) // generate executable hea
segcmdo.flags = 0;
fo->write(&segcmdo, sizeof(segcmdo));
threado.cmd = Mach_segment_command::LC_UNIXTHREAD;
threado.cmdsize = sizeof(threado);
threado.flavor = Mach_thread_command::PPC_THREAD_STATE;
threado.count = Mach_thread_command::PPC_THREAD_STATE_COUNT;
memset(&threado.state, 0, sizeof(threado.state));
fo->write(&threado, sizeof(threado));
pack1_setup_threado(fo);
sz_mach_headers = fo->getBytesWritten();
memset((char *)&linfo, 0, sizeof(linfo));
@@ -343,8 +361,8 @@ PackMachPPC32::pack1(OutputFile *fo, Filter &/*ft*/) // generate executable hea
return;
}
void
PackMachPPC32::unpack(OutputFile *fo)
template <class T>
void PackMachBase<T>::unpack(OutputFile *fo)
{
fi->seek(overlay_offset, SEEK_SET);
p_info hbuf;
@@ -414,8 +432,8 @@ PackMachPPC32::unpack(OutputFile *fo)
}
bool
PackMachPPC32::canPack()
template <class T>
bool PackMachBase<T>::canPack()
{
fi->seek(0, SEEK_SET);
fi->readx(&mhdri, sizeof(mhdri));
@@ -462,6 +480,8 @@ PackMachPPC32::canPack()
return 0 < n_segment;
}
template class PackMachBase<MachClass_BE32>;
template class PackMachBase<MachClass_LE32>;
/*
vi:ts=4:et
*/