mirror of
https://github.com/upx/upx
synced 2025-09-28 19:06:07 +08:00
start converting PackLinuxElf64amd to ElfLinker
This commit is contained in:
John Reiser
parent
f74c2af65c
commit
6bd9805bcc
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@ -675,6 +675,11 @@ void ElfLinkerX86::align(unsigned len)
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alignWithByte(len, 0x90);
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}
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void ElfLinkerAMD64::align(unsigned len)
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{
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alignWithByte(len, 0x90);
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}
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void ElfLinkerX86::relocate1(Relocation *rel, upx_byte *location,
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unsigned value, const char *type)
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{
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@ -698,6 +703,29 @@ void ElfLinkerX86::relocate1(Relocation *rel, upx_byte *location,
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super::relocate1(rel, location, value, type);
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}
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void ElfLinkerAMD64::relocate1(Relocation *rel, upx_byte *location,
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unsigned value, const char *type)
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{
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if (strncmp(type, "R_X86_64_", 9))
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return super::relocate1(rel, location, value, type);
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type += 9;
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if (strncmp(type, "PC", 2) == 0)
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{
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value -= rel->section->offset + rel->offset;
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type += 2;
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}
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if (strcmp(type, "8") == 0)
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*location += value;
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else if (strcmp(type, "16") == 0)
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set_le16(location, get_le16(location) + value);
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else if (strcmp(type, "32") == 0)
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set_le32(location, get_le32(location) + value);
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else
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super::relocate1(rel, location, value, type);
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}
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void ElfLinkerArmLE::relocate1(Relocation *rel, upx_byte *location,
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unsigned value, const char *type)
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{
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10
src/linker.h
10
src/linker.h
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@ -258,6 +258,16 @@ protected:
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unsigned value, const char *type);
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};
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class ElfLinkerAMD64 : public ElfLinker
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{
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typedef ElfLinker super;
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protected:
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virtual void align(unsigned len);
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virtual void relocate1(Relocation *, upx_byte *location,
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unsigned value, const char *type);
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};
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class ElfLinkerArmLE : public ElfLinker
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{
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typedef ElfLinker super;
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@ -148,11 +148,21 @@ PackLinuxElf::PackLinuxElf(InputFile *f)
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sz_phdrs(0), sz_elf_hdrs(0),
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e_machine(0), ei_class(0), ei_data(0), ei_osabi(0)
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{
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delete[] file_image;
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}
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Linker *PackLinuxElf::newLinker() const
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{
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return new ElfLinker;
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}
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PackLinuxElf::~PackLinuxElf()
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{
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delete[] file_image;
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}
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Linker* PackLinuxElf64amd::newLinker() const
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{
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return new ElfLinkerAMD64;
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}
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PackLinuxElf32::PackLinuxElf32(InputFile *f)
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@ -41,6 +41,7 @@ public:
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PackLinuxElf(InputFile *f);
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virtual ~PackLinuxElf();
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/*virtual int buildLoader(const Filter *);*/
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virtual Linker* newLinker() const;
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virtual bool canUnpackVersion(int version) const { return (version >= 11); }
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protected:
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@ -285,6 +286,7 @@ protected:
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virtual void pack3(OutputFile *, Filter &); // append loader
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virtual const int *getCompressionMethods(int method, int level) const;
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virtual int buildLoader(const Filter *);
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virtual Linker* newLinker() const;
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};
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/*************************************************************************
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@ -186,10 +186,12 @@ tc.amd64-linux.elf.objcopy = $(call tc,m-objcopy)
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tc.amd64-linux.elf.objdump = $(call tc,m-objdump)
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tc.amd64-linux.elf.objstrip = $(call tc,objcopy) -R .comment -R .note
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amd64-linux.elf-entry.h : $(srcdir)/src/$$T.S
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$(call tc,gcc) -c $< -o tmp/$T.o
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$(call tc,objstrip) tmp/$T.o
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$(call tc,ld) --oformat binary tmp/$T.o -o tmp/$T.bin
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amd64-linux.elf-entry.h: $(srcdir)/src/$$T.asm
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$(call tc,gcc) -c -x assembler-with-cpp $< -o tmp/$T.bin
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$(call tc,m-objcopy) --strip-unneeded tmp/$T.bin
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$(call tc,m-objcopy) -R .text -R .data -R .bss tmp/$T.bin
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$(call tc,m-objcopy) -R .note -R .comment tmp/$T.bin
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$(call tc,m-objdump) -trwh tmp/$T.bin >> tmp/$T.bin
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$(call tc,bin2h) --ident=linux_elf64amd_loader tmp/$T.bin $@
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amd64-linux.elf-fold.h : tmp/$$T.o tmp/amd64-linux.elf-main.o $(srcdir)/src/$$T.lds
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@ -1,4 +1,4 @@
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/* amd64-linux.elf-entry.h -- created from amd64-linux.elf-entry.bin, 701 (0x2bd) bytes
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/* amd64-linux.elf-entry.h -- created from amd64-linux.elf-entry.bin, 3066 (0xbfa) bytes
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This file is part of the UPX executable compressor.
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@ -27,53 +27,201 @@
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*/
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#define LINUX_ELF64AMD_LOADER_SIZE 701
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#define LINUX_ELF64AMD_LOADER_ADLER32 0xf7af3eba
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#define LINUX_ELF64AMD_LOADER_CRC32 0x8ec9e668
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#define LINUX_ELF64AMD_LOADER_SIZE 3066
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#define LINUX_ELF64AMD_LOADER_ADLER32 0x7a3e6996
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#define LINUX_ELF64AMD_LOADER_CRC32 0x5bbfae22
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unsigned char linux_elf64amd_loader[701] = {
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232,178, 2, 0, 0, 85, 83, 81, 82, 72, 1,254, 86, 72,137,254, /* 0x 0 */
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72,137,215, 49,219, 49,201, 72,131,205,255,232,129, 1, 0, 0, /* 0x 10 */
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1,219,116, 2,243,195,139, 30, 72,131,238,252, 17,219,138, 22, /* 0x 20 */
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243,195, 72,141, 4, 47,131,249, 5,138, 16,118, 33, 72,131,253, /* 0x 30 */
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252,119, 27,131,233, 4,139, 16, 72,131,192, 4,131,233, 4,137, /* 0x 40 */
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23, 72,141,127, 4,115,239,131,193, 4,138, 16,116, 16, 72,255, /* 0x 50 */
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192,136, 23,131,233, 1,138, 16, 72,141,127, 1,117,240,243,195, /* 0x 60 */
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72,255,198,136, 23, 72,255,199,138, 22, 1,219,117, 10,139, 30, /* 0x 70 */
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72,131,238,252, 17,219,138, 22,114,230,141, 65, 1,235, 7,255, /* 0x 80 */
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200, 65,255,211, 17,192, 65,255,211, 17,192, 1,219,117, 10,139, /* 0x 90 */
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30, 72,131,238,252, 17,219,138, 22,115,228,131,232, 3,114, 29, /* 0x a0 */
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193,224, 8, 15,182,210, 9,208, 72,255,198,131,240,255, 15,132, /* 0x b0 */
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244, 0, 0, 0,209,248, 72, 99,232,114, 56,235, 14, 1,219,117, /* 0x c0 */
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8,139, 30, 72,131,238,252, 17,219,114, 40,255,193, 1,219,117, /* 0x d0 */
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8,139, 30, 72,131,238,252, 17,219,114, 24, 65,255,211, 17,201, /* 0x e0 */
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1,219,117, 8,139, 30, 72,131,238,252, 17,219,115,237,131,193, /* 0x f0 */
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2,235, 5, 65,255,211, 17,201, 72,129,253, 0,251,255,255,131, /* 0x 100 */
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209, 2,232, 27,255,255,255,233, 92,255,255,255,102,102,102,144, /* 0x 110 */
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72,255,198,136, 23, 72,255,199,138, 22, 1,219,117, 10,139, 30, /* 0x 120 */
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72,131,238,252, 17,219,138, 22,114,230,141, 65, 1, 65,255,211, /* 0x 130 */
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17,192, 1,219,117, 10,139, 30, 72,131,238,252, 17,219,138, 22, /* 0x 140 */
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115,235,131,232, 3,114, 19,193,224, 8, 15,182,210, 9,208, 72, /* 0x 150 */
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255,198,131,240,255,116, 81, 72, 99,232,141, 65, 1, 65,255,211, /* 0x 160 */
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17,201, 65,255,211, 17,201,117, 24,137,193,131,192, 2, 65,255, /* 0x 170 */
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211, 17,201, 1,219,117, 8,139, 30, 72,131,238,252, 17,219,115, /* 0x 180 */
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237, 72,129,253, 0,243,255,255, 17,193,232,147,254,255,255,235, /* 0x 190 */
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135,252, 65, 91, 65,131,248, 8, 15,132,202,254,255,255, 65,131, /* 0x 1a0 */
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248, 2, 15,132,112,255,255,255, 89, 72,137,240, 72, 41,200, 90, /* 0x 1b0 */
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72, 41,215, 89,137, 57, 91, 93,195, 10, 36, 73,100, 58, 32, 85, /* 0x 1c0 */
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80, 88, 32, 40, 67, 41, 32, 49, 57, 57, 54, 45, 50, 48, 48, 54, /* 0x 1d0 */
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32,116,104,101, 32, 85, 80, 88, 32, 84,101, 97,109, 46, 32, 65, /* 0x 1e0 */
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108,108, 32, 82,105,103,104,116,115, 32, 82,101,115,101,114,118, /* 0x 1f0 */
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101,100, 46, 32,104,116,116,112, 58, 47, 47,117,112,120, 46,115, /* 0x 200 */
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102, 46,110,101,116, 32, 36, 10, 0,104, 30, 0, 0, 0, 90,232, /* 0x 210 */
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30, 0, 0, 0, 80, 82, 79, 84, 95, 69, 88, 69, 67,124, 80, 82, /* 0x 220 */
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79, 84, 95, 87, 82, 73, 84, 69, 32,102, 97,105,108,101,100, 46, /* 0x 230 */
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10, 0, 94,106, 2, 95,106, 1, 88, 15, 5,106,127, 95,106, 60, /* 0x 240 */
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88, 15, 5, 91,191, 65, 68, 82, 77,106, 7, 90,190, 76, 69, 78, /* 0x 250 */
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77,106, 50, 65, 90, 69, 41,192,106, 9, 88, 15, 5, 57,199,117, /* 0x 260 */
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168,104, 74, 77, 80, 85,104, 65, 68, 82, 85,190, 65, 68, 82, 67, /* 0x 270 */
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104, 76, 69, 78, 85,185, 67, 78, 84, 67,104, 65, 68, 82, 88,104, /* 0x 280 */
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76, 69, 78, 88,137,250, 41,242, 1,213, 1,211,252,243, 72,165, /* 0x 290 */
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151,137,222, 80,146,173, 80, 72,137,225,173,151,173, 68, 15,182, /* 0x 2a0 */
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192,135,254,255,213, 89,195, 93,232,150,255,255,255 /* 0x 2b0 */
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unsigned char linux_elf64amd_loader[3066] = {
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127, 69, 76, 70, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 0 */
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1, 0, 62, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 10 */
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0, 0, 0, 0, 0, 0, 0, 0, 40, 3, 0, 0, 0, 0, 0, 0, /* 0x 20 */
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0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 64, 0, 6, 0, 3, 0, /* 0x 30 */
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232,178, 2, 0, 0, 85, 83, 81, 82, 72, 1,254, 86, 72,137,254, /* 0x 40 */
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72,137,215, 49,219, 49,201, 72,131,205,255,232,129, 1, 0, 0, /* 0x 50 */
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1,219,116, 2,243,195,139, 30, 72,131,238,252, 17,219,138, 22, /* 0x 60 */
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243,195, 72,141, 4, 47,131,249, 5,138, 16,118, 33, 72,131,253, /* 0x 70 */
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252,119, 27,131,233, 4,139, 16, 72,131,192, 4,131,233, 4,137, /* 0x 80 */
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23, 72,141,127, 4,115,239,131,193, 4,138, 16,116, 16, 72,255, /* 0x 90 */
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192,136, 23,131,233, 1,138, 16, 72,141,127, 1,117,240,243,195, /* 0x a0 */
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72,255,198,136, 23, 72,255,199,138, 22, 1,219,117, 10,139, 30, /* 0x b0 */
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72,131,238,252, 17,219,138, 22,114,230,141, 65, 1,235, 7,255, /* 0x c0 */
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200, 65,255,211, 17,192, 65,255,211, 17,192, 1,219,117, 10,139, /* 0x d0 */
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30, 72,131,238,252, 17,219,138, 22,115,228,131,232, 3,114, 29, /* 0x e0 */
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193,224, 8, 15,182,210, 9,208, 72,255,198,131,240,255, 15,132, /* 0x f0 */
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244, 0, 0, 0,209,248, 72, 99,232,114, 56,235, 14, 1,219,117, /* 0x 100 */
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8,139, 30, 72,131,238,252, 17,219,114, 40,255,193, 1,219,117, /* 0x 110 */
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8,139, 30, 72,131,238,252, 17,219,114, 24, 65,255,211, 17,201, /* 0x 120 */
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1,219,117, 8,139, 30, 72,131,238,252, 17,219,115,237,131,193, /* 0x 130 */
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2,235, 5, 65,255,211, 17,201, 72,129,253, 0,251,255,255,131, /* 0x 140 */
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209, 2,232, 27,255,255,255,233, 92,255,255,255, 0, 0, 0, 0, /* 0x 150 */
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72,255,198,136, 23, 72,255,199,138, 22, 1,219,117, 10,139, 30, /* 0x 160 */
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72,131,238,252, 17,219,138, 22,114,230,141, 65, 1, 65,255,211, /* 0x 170 */
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17,192, 1,219,117, 10,139, 30, 72,131,238,252, 17,219,138, 22, /* 0x 180 */
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115,235,131,232, 3,114, 19,193,224, 8, 15,182,210, 9,208, 72, /* 0x 190 */
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255,198,131,240,255,116, 81, 72, 99,232,141, 65, 1, 65,255,211, /* 0x 1a0 */
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17,201, 65,255,211, 17,201,117, 24,137,193,131,192, 2, 65,255, /* 0x 1b0 */
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211, 17,201, 1,219,117, 8,139, 30, 72,131,238,252, 17,219,115, /* 0x 1c0 */
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237, 72,129,253, 0,243,255,255, 17,193,232,147,254,255,255,235, /* 0x 1d0 */
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135,252, 65, 91, 65,131,248, 8, 15,132,202,254,255,255, 65,131, /* 0x 1e0 */
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248, 2, 15,132,112,255,255,255, 89, 72,137,240, 72, 41,200, 90, /* 0x 1f0 */
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72, 41,215, 89,137, 57, 91, 93,195, 10, 36, 73,100, 58, 32, 85, /* 0x 200 */
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80, 88, 32, 40, 67, 41, 32, 49, 57, 57, 54, 45, 50, 48, 48, 54, /* 0x 210 */
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32,116,104,101, 32, 85, 80, 88, 32, 84,101, 97,109, 46, 32, 65, /* 0x 220 */
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108,108, 32, 82,105,103,104,116,115, 32, 82,101,115,101,114,118, /* 0x 230 */
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101,100, 46, 32,104,116,116,112, 58, 47, 47,117,112,120, 46,115, /* 0x 240 */
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102, 46,110,101,116, 32, 36, 10, 0,104, 30, 0, 0, 0, 90,232, /* 0x 250 */
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30, 0, 0, 0, 80, 82, 79, 84, 95, 69, 88, 69, 67,124, 80, 82, /* 0x 260 */
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79, 84, 95, 87, 82, 73, 84, 69, 32,102, 97,105,108,101,100, 46, /* 0x 270 */
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10, 0, 94,106, 2, 95,106, 1, 88, 15, 5,106,127, 95,106, 60, /* 0x 280 */
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88, 15, 5, 91,191, 0, 0, 0, 0,106, 7, 90,190, 0, 0, 0, /* 0x 290 */
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0,106, 50, 65, 90, 69, 41,192,106, 9, 88, 15, 5, 57,199,117, /* 0x 2a0 */
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168,104, 0, 0, 0, 0,104, 0, 0, 0, 0,190, 0, 0, 0, 0, /* 0x 2b0 */
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104, 0, 0, 0, 0,185, 0, 0, 0, 0,104, 0, 0, 0, 0,104, /* 0x 2c0 */
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0, 0, 0, 0,137,250, 41,242, 1,213, 1,211,252,243, 72,165, /* 0x 2d0 */
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151,137,222, 80,146,173, 80, 72,137,225,173,151,173, 68, 15,182, /* 0x 2e0 */
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192,135,254,255,213, 89,195, 93,232,150,255,255,255, 0, 46,115, /* 0x 2f0 */
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121,109,116, 97, 98, 0, 46,115,116,114,116, 97, 98, 0, 46,115, /* 0x 300 */
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104,115,116,114,116, 97, 98, 0, 46,114,101,108, 97, 76, 69, 88, /* 0x 310 */
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69, 67, 48, 48, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 320 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 330 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 340 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 350 */
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0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0, 1, 0, 0, 0, /* 0x 360 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 370 */
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64, 0, 0, 0, 0, 0, 0, 0,189, 2, 0, 0, 0, 0, 0, 0, /* 0x 380 */
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0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, /* 0x 390 */
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0, 0, 0, 0, 0, 0, 0, 0, 27, 0, 0, 0, 4, 0, 0, 0, /* 0x 3a0 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 3b0 */
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0, 6, 0, 0, 0, 0, 0, 0,216, 0, 0, 0, 0, 0, 0, 0, /* 0x 3c0 */
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4, 0, 0, 0, 1, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, /* 0x 3d0 */
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24, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0, 0, 3, 0, 0, 0, /* 0x 3e0 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 3f0 */
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253, 2, 0, 0, 0, 0, 0, 0, 41, 0, 0, 0, 0, 0, 0, 0, /* 0x 400 */
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0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, /* 0x 410 */
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0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, /* 0x 420 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 430 */
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168, 4, 0, 0, 0, 0, 0, 0, 32, 1, 0, 0, 0, 0, 0, 0, /* 0x 440 */
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5, 0, 0, 0, 2, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, /* 0x 450 */
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24, 0, 0, 0, 0, 0, 0, 0, 9, 0, 0, 0, 3, 0, 0, 0, /* 0x 460 */
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 470 */
|
||||
200, 5, 0, 0, 0, 0, 0, 0, 53, 0, 0, 0, 0, 0, 0, 0, /* 0x 480 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, /* 0x 490 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 4a0 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 4b0 */
|
||||
0, 0, 0, 0, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 4c0 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 16, 0, 1, 0, /* 0x 4d0 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 4e0 */
|
||||
8, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 4f0 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 16, 0, 0, 0, /* 0x 500 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 510 */
|
||||
18, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 520 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 23, 0, 0, 0, 16, 0, 0, 0, /* 0x 530 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 540 */
|
||||
28, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 550 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 33, 0, 0, 0, 16, 0, 0, 0, /* 0x 560 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 570 */
|
||||
38, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 580 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 43, 0, 0, 0, 16, 0, 0, 0, /* 0x 590 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 5a0 */
|
||||
48, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 5b0 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 95,115,116, 97,114,116, 0, /* 0x 5c0 */
|
||||
65, 68, 82, 77, 0, 76, 69, 78, 77, 0, 74, 77, 80, 85, 0, 65, /* 0x 5d0 */
|
||||
68, 82, 85, 0, 65, 68, 82, 67, 0, 76, 69, 78, 85, 0, 67, 78, /* 0x 5e0 */
|
||||
84, 67, 0, 65, 68, 82, 88, 0, 76, 69, 78, 88, 0, 0, 0, 0, /* 0x 5f0 */
|
||||
85, 2, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 3, 0, 0, 0, /* 0x 600 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 93, 2, 0, 0, 0, 0, 0, 0, /* 0x 610 */
|
||||
10, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 620 */
|
||||
114, 2, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 5, 0, 0, 0, /* 0x 630 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0,119, 2, 0, 0, 0, 0, 0, 0, /* 0x 640 */
|
||||
10, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 650 */
|
||||
124, 2, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 7, 0, 0, 0, /* 0x 660 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0,129, 2, 0, 0, 0, 0, 0, 0, /* 0x 670 */
|
||||
10, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 680 */
|
||||
134, 2, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 9, 0, 0, 0, /* 0x 690 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0,139, 2, 0, 0, 0, 0, 0, 0, /* 0x 6a0 */
|
||||
10, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x 6b0 */
|
||||
144, 2, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 11, 0, 0, 0, /* 0x 6c0 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 10,116,109,112, 47, 97,109,100, /* 0x 6d0 */
|
||||
54, 52, 45,108,105,110,117,120, 46,101,108,102, 45,101,110,116, /* 0x 6e0 */
|
||||
114,121, 46, 98,105,110, 58, 32, 32, 32, 32, 32,102,105,108,101, /* 0x 6f0 */
|
||||
32,102,111,114,109, 97,116, 32,101,108,102, 54, 52, 45,120, 56, /* 0x 700 */
|
||||
54, 45, 54, 52, 10, 10, 83,101, 99,116,105,111,110,115, 58, 10, /* 0x 710 */
|
||||
73,100,120, 32, 78, 97,109,101, 32, 32, 32, 32, 32, 32, 32, 32, /* 0x 720 */
|
||||
32, 32, 83,105,122,101, 32, 32, 32, 32, 32, 32, 86, 77, 65, 32, /* 0x 730 */
|
||||
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 76, 77, /* 0x 740 */
|
||||
65, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, /* 0x 750 */
|
||||
70,105,108,101, 32,111,102,102, 32, 32, 65,108,103,110, 32, 32, /* 0x 760 */
|
||||
70,108, 97,103,115, 10, 32, 32, 48, 32, 76, 69, 88, 69, 67, 48, /* 0x 770 */
|
||||
48, 48, 32, 32, 32, 32, 32, 32, 48, 48, 48, 48, 48, 50, 98,100, /* 0x 780 */
|
||||
32, 32, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 790 */
|
||||
48, 48, 32, 32, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 7a0 */
|
||||
48, 48, 48, 48, 32, 32, 48, 48, 48, 48, 48, 48, 52, 48, 32, 32, /* 0x 7b0 */
|
||||
50, 42, 42, 51, 32, 32, 67, 79, 78, 84, 69, 78, 84, 83, 44, 32, /* 0x 7c0 */
|
||||
82, 69, 76, 79, 67, 44, 32, 82, 69, 65, 68, 79, 78, 76, 89, 10, /* 0x 7d0 */
|
||||
83, 89, 77, 66, 79, 76, 32, 84, 65, 66, 76, 69, 58, 10, 48, 48, /* 0x 7e0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,108, /* 0x 7f0 */
|
||||
32, 32, 32, 32,100, 32, 32, 76, 69, 88, 69, 67, 48, 48, 48, 9, /* 0x 800 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 810 */
|
||||
32, 76, 69, 88, 69, 67, 48, 48, 48, 10, 48, 48, 48, 48, 48, 48, /* 0x 820 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,103, 32, 32, 32, 32, /* 0x 830 */
|
||||
32, 32, 32, 76, 69, 88, 69, 67, 48, 48, 48, 9, 48, 48, 48, 48, /* 0x 840 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 95,115,116, /* 0x 850 */
|
||||
97,114,116, 10, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 860 */
|
||||
48, 48, 48, 48, 32, 32, 32, 32, 32, 32, 32, 32, 32, 42, 85, 78, /* 0x 870 */
|
||||
68, 42, 9, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 880 */
|
||||
48, 48, 48, 32, 65, 68, 82, 77, 10, 48, 48, 48, 48, 48, 48, 48, /* 0x 890 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 32, 32, 32, 32, 32, 32, /* 0x 8a0 */
|
||||
32, 32, 42, 85, 78, 68, 42, 9, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 8b0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 32, 76, 69, 78, 77, 10, 48, 48, /* 0x 8c0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 32, /* 0x 8d0 */
|
||||
32, 32, 32, 32, 32, 32, 32, 42, 85, 78, 68, 42, 9, 48, 48, 48, /* 0x 8e0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 74, 77, /* 0x 8f0 */
|
||||
80, 85, 10, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 900 */
|
||||
48, 48, 48, 32, 32, 32, 32, 32, 32, 32, 32, 32, 42, 85, 78, 68, /* 0x 910 */
|
||||
42, 9, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 920 */
|
||||
48, 48, 32, 65, 68, 82, 85, 10, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 930 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 32, 32, 32, 32, 32, 32, 32, 32, /* 0x 940 */
|
||||
32, 42, 85, 78, 68, 42, 9, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 950 */
|
||||
48, 48, 48, 48, 48, 48, 48, 32, 65, 68, 82, 67, 10, 48, 48, 48, /* 0x 960 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 32, 32, /* 0x 970 */
|
||||
32, 32, 32, 32, 32, 32, 42, 85, 78, 68, 42, 9, 48, 48, 48, 48, /* 0x 980 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 76, 69, 78, /* 0x 990 */
|
||||
85, 10, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 9a0 */
|
||||
48, 48, 32, 32, 32, 32, 32, 32, 32, 32, 32, 42, 85, 78, 68, 42, /* 0x 9b0 */
|
||||
9, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 9c0 */
|
||||
48, 32, 67, 78, 84, 67, 10, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 9d0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 32, 32, 32, 32, 32, 32, 32, 32, 32, /* 0x 9e0 */
|
||||
42, 85, 78, 68, 42, 9, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x 9f0 */
|
||||
48, 48, 48, 48, 48, 48, 32, 65, 68, 82, 88, 10, 48, 48, 48, 48, /* 0x a00 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 32, 32, 32, /* 0x a10 */
|
||||
32, 32, 32, 32, 32, 42, 85, 78, 68, 42, 9, 48, 48, 48, 48, 48, /* 0x a20 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 76, 69, 78, 88, /* 0x a30 */
|
||||
10, 10, 10, 82, 69, 76, 79, 67, 65, 84, 73, 79, 78, 32, 82, 69, /* 0x a40 */
|
||||
67, 79, 82, 68, 83, 32, 70, 79, 82, 32, 91, 76, 69, 88, 69, 67, /* 0x a50 */
|
||||
48, 48, 48, 93, 58, 10, 79, 70, 70, 83, 69, 84, 32, 32, 32, 32, /* 0x a60 */
|
||||
32, 32, 32, 32, 32, 32, 32, 84, 89, 80, 69, 32, 32, 32, 32, 32, /* 0x a70 */
|
||||
32, 32, 32, 32, 32, 32, 32, 32, 32, 86, 65, 76, 85, 69, 32, 10, /* 0x a80 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 53, 53, /* 0x a90 */
|
||||
32, 82, 95, 88, 56, 54, 95, 54, 52, 95, 51, 50, 32, 32, 32, 32, /* 0x aa0 */
|
||||
32, 32, 32, 65, 68, 82, 77, 10, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x ab0 */
|
||||
48, 48, 48, 48, 48, 50, 53,100, 32, 82, 95, 88, 56, 54, 95, 54, /* 0x ac0 */
|
||||
52, 95, 51, 50, 32, 32, 32, 32, 32, 32, 32, 76, 69, 78, 77, 10, /* 0x ad0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 55, 50, /* 0x ae0 */
|
||||
32, 82, 95, 88, 56, 54, 95, 54, 52, 95, 51, 50, 32, 32, 32, 32, /* 0x af0 */
|
||||
32, 32, 32, 74, 77, 80, 85, 10, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x b00 */
|
||||
48, 48, 48, 48, 48, 50, 55, 55, 32, 82, 95, 88, 56, 54, 95, 54, /* 0x b10 */
|
||||
52, 95, 51, 50, 32, 32, 32, 32, 32, 32, 32, 65, 68, 82, 85, 10, /* 0x b20 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 55, 99, /* 0x b30 */
|
||||
32, 82, 95, 88, 56, 54, 95, 54, 52, 95, 51, 50, 32, 32, 32, 32, /* 0x b40 */
|
||||
32, 32, 32, 65, 68, 82, 67, 10, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x b50 */
|
||||
48, 48, 48, 48, 48, 50, 56, 49, 32, 82, 95, 88, 56, 54, 95, 54, /* 0x b60 */
|
||||
52, 95, 51, 50, 32, 32, 32, 32, 32, 32, 32, 76, 69, 78, 85, 10, /* 0x b70 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 56, 54, /* 0x b80 */
|
||||
32, 82, 95, 88, 56, 54, 95, 54, 52, 95, 51, 50, 32, 32, 32, 32, /* 0x b90 */
|
||||
32, 32, 32, 67, 78, 84, 67, 10, 48, 48, 48, 48, 48, 48, 48, 48, /* 0x ba0 */
|
||||
48, 48, 48, 48, 48, 50, 56, 98, 32, 82, 95, 88, 56, 54, 95, 54, /* 0x bb0 */
|
||||
52, 95, 51, 50, 32, 32, 32, 32, 32, 32, 32, 65, 68, 82, 88, 10, /* 0x bc0 */
|
||||
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 57, 48, /* 0x bd0 */
|
||||
32, 82, 95, 88, 56, 54, 95, 54, 52, 95, 51, 50, 32, 32, 32, 32, /* 0x be0 */
|
||||
32, 32, 32, 76, 69, 78, 88, 10, 10, 10 /* 0x bf0 */
|
||||
};
|
||||
|
|
|
|||
273
src/stub/src/amd64-linux.elf-entry.asm
Normal file
273
src/stub/src/amd64-linux.elf-entry.asm
Normal file
|
|
@ -0,0 +1,273 @@
|
|||
/* l_lx_elf64amd.asm -- Linux program entry point & decompressor (Elf binary)
|
||||
*
|
||||
* This file is part of the UPX executable compressor.
|
||||
*
|
||||
* Copyright (C) 1996-2006 Markus Franz Xaver Johannes Oberhumer
|
||||
* Copyright (C) 1996-2006 Laszlo Molnar
|
||||
* Copyright (C) 2000-2006 John F. Reiser
|
||||
* All Rights Reserved.
|
||||
*
|
||||
* UPX and the UCL library are free software; you can redistribute them
|
||||
* and/or modify them under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; see the file COPYING.
|
||||
* If not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*
|
||||
* Markus F.X.J. Oberhumer Laszlo Molnar
|
||||
* <mfx@users.sourceforge.net> <ml1050@users.sourceforge.net>
|
||||
*
|
||||
* John F. Reiser
|
||||
* <jreiser@users.sourceforge.net>
|
||||
*/
|
||||
|
||||
//#include "arch/i386/macros2.ash"
|
||||
|
||||
#include "arch/amd64/regs.h"
|
||||
|
||||
sz_l_info= 12
|
||||
l_lsize= 8
|
||||
|
||||
sz_p_info= 12
|
||||
|
||||
sz_b_info= 12
|
||||
sz_unc= 0
|
||||
sz_cpr= 4
|
||||
b_method= 8
|
||||
|
||||
PROT_READ= 1
|
||||
PROT_WRITE= 2
|
||||
PROT_EXEC= 4
|
||||
|
||||
MAP_PRIVATE= 2
|
||||
MAP_FIXED= 0x10
|
||||
MAP_ANONYMOUS= 0x20
|
||||
|
||||
SYS_mmap= 9 // 64-bit mode only!
|
||||
|
||||
PAGE_SHIFT= 12
|
||||
PAGE_MASK= (~0<<PAGE_SHIFT)
|
||||
PAGE_SIZE= -PAGE_MASK
|
||||
|
||||
M_NRV2B_LE32=2 // ../conf.h
|
||||
M_NRV2E_LE32=8
|
||||
|
||||
|
||||
.section LEXEC000
|
||||
_start: .globl _start
|
||||
call main // push &decompress
|
||||
|
||||
/* Returns 0 on success; non-zero on failure. */
|
||||
decompress: // (uchar const *src, size_t lsrc, uchar *dst, u32 &ldst, uint method)
|
||||
|
||||
/* Arguments according to calling convention */
|
||||
#define src %arg1
|
||||
#define lsrc %arg2
|
||||
#define dst %arg3
|
||||
#define ldst %arg4 /* Out: actually a reference: &len_dst */
|
||||
#define meth %arg5l
|
||||
|
||||
/* Working registers */
|
||||
#define off %eax /* XXX: 2GB */
|
||||
#define len %ecx /* XXX: 2GB */
|
||||
#define lenq %rcx
|
||||
#define bits %ebx
|
||||
#define disp %rbp
|
||||
|
||||
push %rbp; push %rbx // C callable
|
||||
push ldst
|
||||
push dst
|
||||
addq src,lsrc; push lsrc // &input_eof
|
||||
|
||||
movq src,%rsi // hardware src for movsb, lodsb
|
||||
movq dst,%rdi // hardware dst for movsb
|
||||
xor bits,bits // empty; force refill
|
||||
xor len,len // create loop invariant
|
||||
orq $(~0),disp // -1: initial displacement
|
||||
call setup // push &getbit [TUNED]
|
||||
ra_setup:
|
||||
|
||||
/* AMD64 branch prediction is much worse if there are more than 3 branches
|
||||
per 16-byte block. The jnextb would suffer unless inlined. getnextb is OK
|
||||
using closed subroutine to save space, and should be OK on cycles because
|
||||
CALL+RET should be predicted. getnextb could partially expand, using closed
|
||||
subroutine only for refill.
|
||||
*/
|
||||
/* jump on next bit {0,1} with prediction {y==>likely, n==>unlikely} */
|
||||
/* Prediction omitted for now. */
|
||||
/* On refill: prefetch next byte, for latency reduction on literals and offsets. */
|
||||
#define jnextb0np jnextb0yp
|
||||
#define jnextb0yp GETBITp; jnc
|
||||
#define jnextb1np jnextb1yp
|
||||
#define jnextb1yp GETBITp; jc
|
||||
#define GETBITp \
|
||||
addl bits,bits; jnz 0f; \
|
||||
movl (%rsi),bits; subq $-4,%rsi; \
|
||||
adcl bits,bits; movb (%rsi),%dl; \
|
||||
0:
|
||||
/* Same, but without prefetch (not useful for length of match.) */
|
||||
#define jnextb0n jnextb0y
|
||||
#define jnextb0y GETBIT; jnc
|
||||
#define jnextb1n jnextb1y
|
||||
#define jnextb1y GETBIT; jc
|
||||
#define GETBIT \
|
||||
addl bits,bits; jnz 0f; \
|
||||
movl (%rsi),bits; subq $-4,%rsi; \
|
||||
adcl bits,bits; \
|
||||
0:
|
||||
|
||||
/* rotate next bit into bottom bit of reg */
|
||||
#define getnextbp(reg) call *%r11; adcl reg,reg
|
||||
#define getnextb(reg) getnextbp(reg)
|
||||
|
||||
.p2align 3
|
||||
getbit:
|
||||
addl bits,bits; jz refill // Carry= next bit
|
||||
rep; ret
|
||||
refill:
|
||||
movl (%rsi),bits; subq $-4,%rsi // next 32 bits; set Carry
|
||||
adcl bits,bits // LSB= 1 (CarryIn); CarryOut= next bit
|
||||
movb (%rsi),%dl // speculate: literal, or bottom 8 bits of offset
|
||||
rep; ret
|
||||
|
||||
copy: // In: len, %rdi, disp; Out: 0==len, %rdi, disp; trashes %rax, %rdx
|
||||
leaq (%rdi,disp),%rax; cmpl $5,len // <=3 is forced
|
||||
movb (%rax),%dl; jbe copy1 // <=5 for better branch predict
|
||||
cmpq $-4,disp; ja copy1 // 4-byte chunks would overlap
|
||||
subl $4,len // adjust for termination cases
|
||||
copy4:
|
||||
movl (%rax),%edx; addq $4, %rax; subl $4,len
|
||||
movl %edx,(%rdi); leaq 4(%rdi),%rdi; jnc copy4
|
||||
addl $4,len; movb (%rax),%dl; jz copy0
|
||||
copy1:
|
||||
incq %rax; movb %dl,(%rdi); subl $1,len
|
||||
movb (%rax),%dl
|
||||
leaq 1(%rdi),%rdi; jnz copy1
|
||||
copy0:
|
||||
rep; ret
|
||||
|
||||
#include "arch/amd64/nrv2e_d.S"
|
||||
#include "arch/amd64/nrv2b_d.S"
|
||||
|
||||
setup:
|
||||
cld
|
||||
pop %r11 // addq $ getbit - ra_setup,%r11 # &getbit
|
||||
cmpl $ M_NRV2E_LE32,meth; je top_n2e
|
||||
cmpl $ M_NRV2B_LE32,meth; je top_n2b
|
||||
eof:
|
||||
pop %rcx // &input_eof
|
||||
movq %rsi,%rax; subq %rcx,%rax // src -= eof; // return 0: good; else: bad
|
||||
pop %rdx; subq %rdx,%rdi // dst -= original dst
|
||||
pop %rcx; movl %edi,(%rcx) // actual length used at dst XXX: 4GB
|
||||
pop %rbx; pop %rbp
|
||||
ret
|
||||
|
||||
/* Temporary until we get the buildLoader stuff working ... */
|
||||
.ascii "\n$Id: UPX (C) 1996-2006 the UPX Team. "
|
||||
.asciz "All Rights Reserved. http://upx.sf.net $\n"
|
||||
|
||||
/* These from /usr/include/asm-x86_64/unistd.h */
|
||||
__NR_write = 1
|
||||
__NR_exit = 60
|
||||
|
||||
msg_SELinux:
|
||||
push $ L71 - L70; pop %arg3 // length
|
||||
call L71
|
||||
L70:
|
||||
.asciz "PROT_EXEC|PROT_WRITE failed.\n"
|
||||
L71:
|
||||
pop %arg2 // message text
|
||||
push $2; pop %arg1 // fd stderr
|
||||
push $ __NR_write; pop %rax
|
||||
syscall
|
||||
die:
|
||||
push $127; pop %arg1
|
||||
push $ __NR_exit; pop %rax
|
||||
syscall
|
||||
|
||||
/* Decompress the rest of this loader, and jump to it.
|
||||
Map a page to hold the decompressed bytes. Logically this could
|
||||
be done by setting .p_memsz for our first PT_LOAD. But as of 2005-11-09,
|
||||
linux 2.6.14 only does ".bss expansion" on the PT_LOAD that describes the
|
||||
highest address. [I regard this as a bug, and it makes the kernel's
|
||||
fs/binfmt_elf.c complicated, buggy, and insecure.] For us, that is the 2nd
|
||||
PT_LOAD, which is the only way that linux allows to set the brk() for the
|
||||
uncompressed program. [This is a significant kernel misfeature.]
|
||||
*/
|
||||
unfold:
|
||||
pop %rbx // &b_info
|
||||
|
||||
/* Get some pages. If small, then get 1 page located just after the end
|
||||
of the first PT_LOAD of the compressed program. This will still be below
|
||||
all of the uncompressed program. If large (>=3MB compressed), then get enough
|
||||
to duplicate the entire compressed PT_LOAD, plus 1 page, located just after
|
||||
the brk() of the _un_compressed program. The address and length are pre-
|
||||
calculated by PackLinuxElf64amd::pack3(), and patched in at compress time.
|
||||
*/
|
||||
movl $ ADRM,%edi // XXX: 4GB
|
||||
push $ PROT_READ | PROT_WRITE | PROT_EXEC; pop %arg3
|
||||
movl $ LENM,%esi // XXX: 4GB
|
||||
push $ MAP_PRIVATE | MAP_FIXED | MAP_ANONYMOUS; pop %sys4
|
||||
subl %arg5l,%arg5l //; subl %arg6l,%arg6l // MAP_ANON ==> ignore offset
|
||||
push $ SYS_mmap; pop %rax
|
||||
syscall // %rax= result; trashes %rcx,%r11 only
|
||||
cmpl %eax,%edi; jne msg_SELinux // XXX: 4GB
|
||||
|
||||
/* Load the addresses and lengths that ::pack3() patched in.
|
||||
XXX: 2GB Note that PUSH $imm32 sign-extends to 64 bits.
|
||||
XXX: 4GB Note that MOVL $imm32,reg zero-extends to 64-bits.
|
||||
(Use an temporary register to obtain 4GB range on PUSH constant.)
|
||||
*/
|
||||
push $ JMPU // for unmap in fold
|
||||
push $ ADRU // for unmap in fold
|
||||
movl $ ADRC,%esi
|
||||
push $ LENU // for unmap in fold
|
||||
movl $ CNTC,%ecx
|
||||
push $ ADRX //# for upx_main
|
||||
push $ LENX // for upx_main
|
||||
|
||||
/* Move and relocate if compressed overlaps uncompressed.
|
||||
Move by 0 when total compressed executable is < 3MB.
|
||||
*/
|
||||
movl %edi,%edx // ADRM
|
||||
subl %esi,%edx // (ADRM - ADRC) == relocation amount
|
||||
addl %edx,%ebp // update &decompress
|
||||
addl %edx,%ebx // update &b_info
|
||||
|
||||
cld
|
||||
rep; movsq
|
||||
xchgl %eax,%edi
|
||||
|
||||
/* Decompress the folded part of this stub, then execute it. */
|
||||
movl %ebx,%esi // %arg2l= &b_info (relocated)
|
||||
push %rax // ret_addr after decompression
|
||||
xchgl %eax,%arg3l // %arg3= dst for unfolding XXX: 4GB
|
||||
lodsl; push %rax // allocate slot on stack
|
||||
movq %rsp,%arg4 // &len_dst ==> &do_not_care
|
||||
lodsl; xchgl %eax,%arg1l // sz_cpr XXX: 4GB
|
||||
lodsl; movzbl %al,%arg5l // b_method
|
||||
xchg %arg1l,%arg2l // XXX: 4GB
|
||||
call *%rbp // decompress
|
||||
pop %rcx // discard len_dst
|
||||
ret
|
||||
|
||||
main:
|
||||
// int3 # uncomment for debugging
|
||||
pop %rbp // &decompress
|
||||
call unfold // push &b_info
|
||||
/* { b_info={sz_unc, sz_cpr, {4 char}}, folded_loader...} */
|
||||
|
||||
/*__XTHEENDX__*/
|
||||
|
||||
/*
|
||||
vi:ts=8:et:nowrap
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user