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Add file formst UPX_F_LINUX_ELF32_ARMEB and normalize spelling

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of ARMEL, ARMEB, armel, armeb.
This commit is contained in:
John Reiser 2007-04-22 16:09:18 -07:00
parent 0c2263d0e9
commit 9c564fd4c7
7 changed files with 169 additions and 24 deletions
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7
src/conf.h
View File

@ -448,13 +448,13 @@ private:
#define UPX_F_LINUX_ELFI_i386 20
#define UPX_F_WINCE_ARM_PE 21
#define UPX_F_LINUX_ELF64_AMD 22
#define UPX_F_LINUX_ELF32_ARMLE 23
#define UPX_F_LINUX_ELF32_ARMEL 23
#define UPX_F_BSD_i386 24
#define UPX_F_BSD_ELF_i386 25
#define UPX_F_BSD_SH_i386 26
#define UPX_F_VMLINUX_AMD64 27
#define UPX_F_VMLINUX_ARM 28
#define UPX_F_VMLINUX_ARMEL 28
#define UPX_F_MACH_i386 29
#define UPX_F_PLAIN_TEXT 127
@ -463,8 +463,9 @@ private:
#define UPX_F_SOLARIS_SPARC 130
#define UPX_F_MACH_PPC32 131
#define UPX_F_LINUX_ELFPPC32 132
#define UPX_F_LINUX_ELF32_ARMBE 133
#define UPX_F_LINUX_ELF32_ARMEB 133
#define UPX_F_MACH_FAT 134
#define UPX_F_VMLINUX_ARMEB 135
// compression methods

4
src/p_lx_elf.h
View File

@ -416,7 +416,7 @@ class PackLinuxElf32armLe : public PackLinuxElf32Le
public:
PackLinuxElf32armLe(InputFile *f);
virtual ~PackLinuxElf32armLe();
virtual int getFormat() const { return UPX_F_LINUX_ELF32_ARMLE; }
virtual int getFormat() const { return UPX_F_LINUX_ELF32_ARMEL; }
virtual const char *getName() const { return "linux/armLE"; }
virtual const char *getFullName(const options_t *) const { return "arm-linux.elf"; }
virtual const int *getFilters() const;
@ -436,7 +436,7 @@ class PackLinuxElf32armBe : public PackLinuxElf32Be
public:
PackLinuxElf32armBe(InputFile *f);
virtual ~PackLinuxElf32armBe();
virtual int getFormat() const { return UPX_F_LINUX_ELF32_ARMBE; }
virtual int getFormat() const { return UPX_F_LINUX_ELF32_ARMEB; }
virtual const char *getName() const { return "linux/armBE"; }
virtual const char *getFullName(const options_t *) const { return "armeb-linux.elf"; }
virtual const int *getFilters() const;

108
src/p_vmlinx.cpp
View File

@ -44,6 +44,8 @@ static const
#include "stub/amd64-linux.kernel.vmlinux.h"
static const
#include "stub/arm-linux.kernel.vmlinux.h"
static const
#include "stub/armeb-linux.kernel.vmlinux.h"
/*************************************************************************
@ -547,18 +549,29 @@ const int *PackVmlinuxI386::getFilters() const
return filters;
}
const int *PackVmlinuxARM::getCompressionMethods(int method, int level) const
const int *PackVmlinuxARMEL::getCompressionMethods(int method, int level) const
{
return Packer::getDefaultCompressionMethods_8(method, level);
}
const int *PackVmlinuxARMEB::getCompressionMethods(int method, int level) const
{
return Packer::getDefaultCompressionMethods_8(method, level);
}
const int *PackVmlinuxARM::getFilters() const
const int *PackVmlinuxARMEL::getFilters() const
{
static const int f50[] = { 0x50, FT_END };
return f50;
}
const int *PackVmlinuxARMEB::getFilters() const
{
static const int f51[] = { 0x51, FT_END };
return f51;
}
//
// Examples as of 2004-07-16 [readelf --segments vmlinux # before fiddling]:
//
@ -646,18 +659,28 @@ void PackVmlinuxAMD64::buildLoader(const Filter *ft)
"LINUX992,IDENTSTR,UPX1HEAD", NULL);
}
bool PackVmlinuxARM::is_valid_e_entry(Addr e_entry)
bool PackVmlinuxARMEL::is_valid_e_entry(Addr e_entry)
{
return 0xc0008000==e_entry;
}
Linker* PackVmlinuxARM::newLinker() const
bool PackVmlinuxARMEB::is_valid_e_entry(Addr e_entry)
{
return 0xc0008000==e_entry;
}
Linker* PackVmlinuxARMEL::newLinker() const
{
return new ElfLinkerArmLE;
}
Linker* PackVmlinuxARMEB::newLinker() const
{
return new ElfLinkerArmBE;
}
void PackVmlinuxARM::buildLoader(const Filter *ft)
void PackVmlinuxARMEL::buildLoader(const Filter *ft)
{
// prepare loader
initLoader(stub_arm_linux_kernel_vmlinux, sizeof(stub_arm_linux_kernel_vmlinux));
@ -679,6 +702,28 @@ void PackVmlinuxARM::buildLoader(const Filter *ft)
addLoader("IDENTSTR,UPX1HEAD", NULL);
}
void PackVmlinuxARMEB::buildLoader(const Filter *ft)
{
// prepare loader
initLoader(stub_armeb_linux_kernel_vmlinux, sizeof(stub_armeb_linux_kernel_vmlinux));
addLoader("LINUX000", NULL);
if (ft->id) {
assert(ft->calls > 0);
addLoader("LINUX010", NULL);
}
addLoader("LINUX020", NULL);
if (ft->id) {
addFilter32(ft->id);
}
addLoader("LINUX030", NULL);
if (ph.method == M_NRV2E_8) addLoader("NRV2E", NULL);
else if (ph.method == M_NRV2B_8) addLoader("NRV2B", NULL);
else if (ph.method == M_NRV2D_8) addLoader("NRV2D", NULL);
else if (M_IS_LZMA(ph.method)) addLoader("LZMA_ELF00,LZMA_DEC10,LZMA_DEC30", NULL);
else throwBadLoader();
addLoader("IDENTSTR,UPX1HEAD", NULL);
}
static const
#include "stub/i386-linux.kernel.vmlinux-head.h"
@ -686,6 +731,8 @@ static const
#include "stub/amd64-linux.kernel.vmlinux-head.h"
static const
#include "stub/arm-linux.kernel.vmlinux-head.h"
static const
#include "stub/armeb-linux.kernel.vmlinux-head.h"
unsigned PackVmlinuxI386::write_vmlinux_head(
OutputFile *const fo,
@ -719,7 +766,15 @@ printf("UnCompressed length=0x%x\n", ph.u_len);
return sizeof(stub_amd64_linux_kernel_vmlinux_head);
}
void PackVmlinuxARM::defineDecompressorSymbols()
void PackVmlinuxARMEL::defineDecompressorSymbols()
{
super::defineDecompressorSymbols();
linker->defineSymbol( "COMPRESSED_LENGTH", ph.c_len);
linker->defineSymbol("UNCOMPRESSED_LENGTH", ph.u_len);
linker->defineSymbol("METHOD", ph.method);
}
void PackVmlinuxARMEB::defineDecompressorSymbols()
{
super::defineDecompressorSymbols();
linker->defineSymbol( "COMPRESSED_LENGTH", ph.c_len);
@ -744,7 +799,7 @@ void PackVmlinuxAMD64::defineDecompressorSymbols()
linker->defineSymbol("PHYSICAL_START", phdri[0].p_paddr);
}
unsigned PackVmlinuxARM::write_vmlinux_head(
unsigned PackVmlinuxARMEL::write_vmlinux_head(
OutputFile *const fo,
Shdr *const stxt
)
@ -766,8 +821,30 @@ unsigned PackVmlinuxARM::write_vmlinux_head(
return sizeof(stub_arm_linux_kernel_vmlinux_head);
}
unsigned PackVmlinuxARMEB::write_vmlinux_head(
OutputFile *const fo,
Shdr *const stxt
)
{
// First word from vmlinux-head.S
fo->write(&stub_armeb_linux_kernel_vmlinux_head[0], 4);
bool PackVmlinuxARM::has_valid_vmlinux_head()
// Second word
U32 tmp_u32;
unsigned const t = (0xff000000 &
BeLePolicy::get32(&stub_armeb_linux_kernel_vmlinux_head[4]))
| (0x00ffffff & (0u - 1 + ((3+ ph.c_len)>>2)));
tmp_u32 = t;
fo->write(&tmp_u32, 4);
stxt->sh_addralign = 4;
stxt->sh_size += sizeof(stub_armeb_linux_kernel_vmlinux_head);
return sizeof(stub_armeb_linux_kernel_vmlinux_head);
}
bool PackVmlinuxARMEL::has_valid_vmlinux_head()
{
U32 buf[2];
fi->seek(p_text->sh_offset + sizeof(stub_arm_linux_kernel_vmlinux_head) -8, SEEK_SET);
@ -781,6 +858,20 @@ bool PackVmlinuxARM::has_valid_vmlinux_head()
return false;
}
bool PackVmlinuxARMEB::has_valid_vmlinux_head()
{
U32 buf[2];
fi->seek(p_text->sh_offset + sizeof(stub_armeb_linux_kernel_vmlinux_head) -8, SEEK_SET);
fi->readx(buf, sizeof(buf));
//unsigned const word0 = buf[0];
unsigned const word1 = buf[1];
if (0xeb==(word1>>24)
&& (0x00ffffff& word1)==(0u - 1 + ((3+ ph.c_len)>>2))) {
return true;
}
return false;
}
bool PackVmlinuxI386::has_valid_vmlinux_head()
{
unsigned char buf[5];
@ -1058,6 +1149,7 @@ Linker* PackVmlinuxAMD64::newLinker() const
// instantiate instances
template class PackVmlinuxBase<ElfClass_LE32>;
template class PackVmlinuxBase<ElfClass_BE32>;
template class PackVmlinuxBase<ElfClass_LE64>;

32
src/p_vmlinx.h
View File

@ -119,14 +119,14 @@ protected:
};
class PackVmlinuxARM : public PackVmlinuxBase<ElfClass_LE32>
class PackVmlinuxARMEL : public PackVmlinuxBase<ElfClass_LE32>
{
typedef PackVmlinuxBase<ElfClass_LE32> super;
public:
PackVmlinuxARM(InputFile *f) : super(f, Ehdr::EM_ARM,
PackVmlinuxARMEL(InputFile *f) : super(f, Ehdr::EM_ARM,
Ehdr::ELFCLASS32, Ehdr::ELFDATA2LSB, "decompress_kernel") { }
virtual int getFormat() const { return UPX_F_VMLINUX_ARM; }
virtual const char *getName() const { return "vmlinux/ARM"; }
virtual int getFormat() const { return UPX_F_VMLINUX_ARMEL; }
virtual const char *getName() const { return "vmlinux/armel"; }
virtual const char *getFullName(const options_t *) const { return "arm-linux.kernel.vmlinux"; }
virtual const int *getCompressionMethods(int method, int level) const;
virtual const int *getFilters() const;
@ -143,6 +143,30 @@ protected:
);
};
class PackVmlinuxARMEB : public PackVmlinuxBase<ElfClass_BE32>
{
typedef PackVmlinuxBase<ElfClass_BE32> super;
public:
PackVmlinuxARMEB(InputFile *f) : super(f, Ehdr::EM_ARM,
Ehdr::ELFCLASS32, Ehdr::ELFDATA2MSB, "decompress_kernel") { }
virtual int getFormat() const { return UPX_F_VMLINUX_ARMEB; }
virtual const char *getName() const { return "vmlinux/armeb"; }
virtual const char *getFullName(const options_t *) const { return "armbe-linux.kernel.vmlinux"; }
virtual const int *getCompressionMethods(int method, int level) const;
virtual const int *getFilters() const;
protected:
virtual void buildLoader(const Filter *ft);
virtual void defineDecompressorSymbols();
virtual Linker* newLinker() const;
virtual bool is_valid_e_entry(Addr);
virtual bool has_valid_vmlinux_head();
virtual unsigned write_vmlinux_head(
OutputFile *const fo,
Shdr *const stxt
);
};
class PackVmlinuxAMD64 : public PackVmlinuxBase<ElfClass_LE64>
{

14
src/packer_c.cpp
View File

@ -208,11 +208,12 @@ const char *Packer::getDecompressorSections() const
if (UPX_F_LINUX_ELF_i386 ==ph.format
|| UPX_F_LINUX_ELFI_i386 ==ph.format
|| UPX_F_LINUX_ELF64_AMD ==ph.format
|| UPX_F_LINUX_ELF32_ARMLE==ph.format
|| UPX_F_LINUX_ELF32_ARMEL==ph.format
|| UPX_F_LINUX_ELFPPC32 ==ph.format
|| UPX_F_LINUX_ELF32_ARMBE==ph.format
|| UPX_F_LINUX_ELF32_ARMEB==ph.format
|| UPX_F_BSD_ELF_i386 ==ph.format
|| UPX_F_VMLINUX_ARM ==ph.format
|| UPX_F_VMLINUX_ARMEL ==ph.format
|| UPX_F_VMLINUX_ARMEB ==ph.format
|| UPX_F_MACH_PPC32 ==ph.format
|| UPX_F_MACH_i386 ==ph.format
) {
@ -244,11 +245,12 @@ void Packer::defineDecompressorSymbols()
if (UPX_F_LINUX_ELF_i386 ==ph.format
|| UPX_F_LINUX_ELFI_i386 ==ph.format
|| UPX_F_LINUX_ELF64_AMD ==ph.format
|| UPX_F_LINUX_ELF32_ARMLE==ph.format
|| UPX_F_LINUX_ELF32_ARMEL==ph.format
|| UPX_F_LINUX_ELFPPC32 ==ph.format
|| UPX_F_LINUX_ELF32_ARMBE==ph.format
|| UPX_F_LINUX_ELF32_ARMEB==ph.format
|| UPX_F_BSD_ELF_i386 ==ph.format
|| UPX_F_VMLINUX_ARM ==ph.format
|| UPX_F_VMLINUX_ARMEL ==ph.format
|| UPX_F_VMLINUX_ARMEB ==ph.format
|| UPX_F_MACH_PPC32 ==ph.format
|| UPX_F_MACH_i386 ==ph.format
) {

4
src/packmast.cpp
View File

@ -192,7 +192,9 @@ Packer* PackMaster::visitAllPackers(visit_func_t func, InputFile *f, const optio
//
// linux kernel
//
if ((p = func(new PackVmlinuxARM(f), user)) != NULL)
if ((p = func(new PackVmlinuxARMEL(f), user)) != NULL)
return p;
if ((p = func(new PackVmlinuxARMEB(f), user)) != NULL)
return p;
if ((p = func(new PackVmlinuxAMD64(f), user)) != NULL)
return p;

24
src/stub/Makefile
View File

@ -56,6 +56,8 @@ STUBS += arm-linux.kernel.vmlinux.h
STUBS += arm-linux.kernel.vmlinux-head.h
STUBS += armeb-linux.elf-entry.h
STUBS += armeb-linux.elf-fold.h
STUBS += armeb-linux.kernel.vmlinux.h
STUBS += armeb-linux.kernel.vmlinux-head.h
STUBS += arm.v4a-wince.pe.h
STUBS += arm.v4t-wince.pe.h
STUBS += i086-dos16.com.h
@ -336,6 +338,28 @@ arm-linux.kernel.vmlinux-head.h : $(srcdir)/src/$$T.S
$(call tc,bin2h) tmp/$T.bin $@
# /***********************************************************************
# // armeb-linux.kernel.vmlinux
# // armeb-linux.kernel.vmlinuz
# // armeb-linux.kernel.vmlinux-head
# ************************************************************************/
armeb-linux.kernel.vmlinu%.h : tc_list = armeb-linux.kernel default
armeb-linux.kernel.vmlinu%.h : tc_bfdname = elf32-bigarm
tc.armeb-linux.kernel.gcc = $(tc.arm-linux.elf.gcc) -mbig-endian
armeb-linux.kernel.vmlinu%.h : $(srcdir)/src/$$T.S
$(call tc,gcc) -c -x assembler-with-cpp $< -o tmp/$T.bin
$(call tc,f-embed_objinfo,tmp/$T.bin)
$(call tc,bin2h-c) tmp/$T.bin $@
armeb-linux.kernel.vmlinux-head.h : $(srcdir)/src/$$T.S
$(call tc,gcc) -c -x assembler-with-cpp $< -o tmp/$T.o
$(call tc,objcopy) --output-target binary --only-section .text tmp/$T.o tmp/$T.bin
$(call tc,bin2h) tmp/$T.bin $@
# /***********************************************************************
# // armeb-linux.elf
# ************************************************************************/