mirror of
https://github.com/upx/upx
synced 2025-09-28 19:06:07 +08:00
Building the Linux stub is now completely freestanding of any libc/kernel headers.
committer: mfx <mfx> 1080194907 +0000
This commit is contained in:
Markus F.X.J. Oberhumer
parent
23db1d375c
commit
a5d8e575bd
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@ -85,6 +85,7 @@ STRIPELF = ./util/sstrip/sstrip
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# gcc 3.4 (20040118 experimental) seems to produce the smallest code
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ifeq (1,2)
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CC_LINUX_I386 = gcc-2.72 -m386 -O2
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## CC_LINUX_I386 = gcc-1.41 -O -Mcxx
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else
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ifeq (1,2)
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# gcc 2.95
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@ -95,20 +96,22 @@ ifeq (1,2)
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CC_LINUX_I386 += -malign-functions=0 -malign-jumps=0 -malign-loops=0
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CC_LINUX_I386 += -Werror
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else
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# gcc 3.4 20040118 (fold_*.bin: 1552 / 1043 / 1320)
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# gcc 3.4 20040118 (fold_*.bin: 1525 / 1043 / 1300)
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# info: -mcpu=k6 procduces the smallest code
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CC_LINUX_I386 = gcc-3.4 -march=i386 -mtune=k6 -Os -fno-omit-frame-pointer -fno-exceptions
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CC_LINUX_I386 += -fno-align-functions -fno-align-jumps -fno-align-labels -fno-align-loops
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CC_LINUX_I386 += -fweb
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CC_LINUX_I386 += -momit-leaf-frame-pointer
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CC_LINUX_I386 += -Werror
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endif
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endif
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CC_LINUX_I386 += -nostdinc
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CC_LINUX_I386 += -Wall -W -Wcast-align -Wcast-qual -Wwrite-strings
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CC_LINUX_I386 += -funsigned-char
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###CC_LINUX_I386 += -fwritable-strings -save-temps
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# Motorola 68000
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CPP_M68K = gcc-2.72 -I$(UCL_UPX) -I$(srcdir) -E -x assembler-with-cpp -Wall -Wp,-P,-C,-traditional
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CPP_M68K = gcc-2.72 -nostdinc -I$(UCL_UPX) -I$(srcdir) -E -x assembler-with-cpp -Wall -Wp,-P,-C,-traditional
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APP_M68K = perl -w $(srcdir)/scripts/app_m68k.pl
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ifeq (1,1)
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# a68k 68000-assembler
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@ -121,7 +124,7 @@ else
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endif
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# MIPS R3000
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CPP_MR3K = gcc-2.72 -I$(UCL_UPX) -I$(srcdir) -E -x assembler-with-cpp -Wall -Wp,-P,-C,-traditional
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CPP_MR3K = gcc-2.72 -nostdinc -I$(UCL_UPX) -I$(srcdir) -E -x assembler-with-cpp -Wall -Wp,-P,-C,-traditional
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APP_MR3K = perl -w $(srcdir)/scripts/app_mr3k.pl
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ASM_MR3K = asm5900 --nologo -q
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@ -321,16 +324,16 @@ l_lx_sh86.h: l_lx_sh86.asx
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$(NASM) -f bin -o $T.bin $<
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$(BIN2H) $T.bin linux_i386sh_loader $@
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l_lx_elf.o: l_lx_elf.c
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l_lx_elf.o: l_lx_elf.c linux.hh
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$(CC_LINUX_I386) -c $<
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l_lx_exec.o: l_lx_exec.c
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l_lx_exec.o: l_lx_exec.c linux.hh
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$(CC_LINUX_I386) -c $<
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l_lx_sep.o: l_lx_sep.c
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l_lx_sep.o: l_lx_sep.c linux.hh
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$(CC_LINUX_I386) -c $<
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l_lx_sh.o: l_lx_sh.c
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l_lx_sh.o: l_lx_sh.c linux.hh
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$(CC_LINUX_I386) -c $<
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fold_elf86.o: fold_elf86.asm
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@ -399,6 +402,7 @@ l_t_n2ds.h: n2d_d.ash bits.ash $(DEPS1)
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l_t_n2e.h: n2e_d.ash bits.ash $(DEPS1)
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l_t_n2es.h: n2e_d.ash bits.ash $(DEPS1)
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l_tmt.h: $(DEPS2) $(DEPS3)
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l_vmlinz.h: $(DEPS2) $(DEPS3)
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l_vxd.h: $(DEPS2) $(DEPS3)
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l_wcle.h: $(DEPS2) $(DEPS3)
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l_w32pe.h: $(DEPS2) $(DEPS3)
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@ -406,10 +410,6 @@ l_w32pe.h: $(DEPS2) $(DEPS3)
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l_lx_elf86.h: l_lx_elf86.asm macros.ash macros.asy $(DEPS3)
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l_lx_exec86.h: l_lx_exec86.asm macros.ash macros.asy $(DEPS3)
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l_lx_sh86.h: l_lx_sh86.asm macros.ash macros.asy $(DEPS3)
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l_vmlinz.h: l_vmlinz.asm macros.ash macros.asy $(DEPS3)
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upxb: linux.hh
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upxd: linux.hh
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.NOEXPORT:
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@ -208,7 +208,7 @@ make_hatch(Elf32_Phdr const *const phdr)
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}
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static void
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__attribute__ ((regparm(2), stdcall))
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__attribute__((regparm(2), stdcall))
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upx_bzero(char *p, size_t len)
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{
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if (len) do {
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@ -219,7 +219,7 @@ upx_bzero(char *p, size_t len)
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static void
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__attribute__ ((regparm(3), stdcall))
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__attribute__((regparm(3), stdcall))
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auxv_up(Elf32_auxv_t *av, int const type, unsigned const value)
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{
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if (av && 0==(1&(int)av)) /* PT_INTERP usually inhibits, except for hatch */
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@ -79,7 +79,7 @@ static __inline__ int xwrite(int fd, const void *buf, int count)
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#if 1
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extern char *
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__attribute__ ((regparm(2), stdcall)) // be ruthless
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__attribute__((regparm(2), stdcall)) // be ruthless
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upx_itoa(unsigned long v, char *buf);
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#else
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@ -131,7 +131,7 @@ static char *
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do_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t offset)
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{
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(void)len; (void)prot; (void)flags; (void)fd; (void)offset;
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return mmap((void *)&addr);
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return (char *) mmap((void *)&addr);
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}
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@ -26,94 +26,52 @@
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*/
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#if !defined(__linux__) || !defined(__i386__)
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# error "this stub must be compiled under linux/i386"
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// NOTE:
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// to avoid endless problems with moving libc and kernel headers, this
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// section is now completly freestanding
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/*************************************************************************
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//
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**************************************************************************/
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// <stddef.h>
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typedef long ptrdiff_t;
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typedef unsigned long size_t;
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// <stdint.h>
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typedef unsigned char uint8_t;
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typedef unsigned short uint16_t;
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typedef int int32_t;
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typedef unsigned uint32_t;
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#if defined(_WIN32) && !defined(__GNUC__)
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#else
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typedef long long int64_t;
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typedef unsigned long long uint64_t;
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#endif
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typedef size_t uintptr_t;
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// <sys/types.h>
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typedef long off_t;
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//typedef int64_t off64_t;
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//typedef size_t caddr_t;
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typedef void* caddr_t;
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typedef unsigned pid_t;
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/*************************************************************************
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// includes
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**************************************************************************/
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struct rusage;
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struct timex;
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#define __need_timeval
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#include <sys/types.h>
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#include <sys/resource.h>
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#include <elf.h>
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#include <fcntl.h>
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#include <sched.h>
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#include <sys/time.h>
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#include <time.h>
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#include <linux/errno.h>
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#include <linux/mman.h>
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//#include <linux/personality.h>
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//#include <linux/timex.h>
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#include <linux/unistd.h>
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#define CONST_CAST(type, var) \
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((type) ((unsigned long) (var)))
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/*************************************************************************
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// constants and types
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**************************************************************************/
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// !!! must be the same as in p_unix.h !!!
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#define OVERHEAD 2048
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#define UPX_MAGIC_LE32 0x21585055 // "UPX!"
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// patch constants for our loader (le32 format)
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#define UPX1 0x31585055 // "UPX1"
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#define UPX2 0x32585055 // "UPX2"
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#define UPX3 0x33585055 // "UPX4"
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#define UPX4 0x34585055 // "UPX4"
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#define UPX5 0x35585055 // "UPX5"
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#undef int32_t
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#undef uint32_t
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#define int32_t int
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#define uint32_t unsigned int
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typedef int nrv_int;
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typedef int nrv_int32;
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typedef unsigned int nrv_uint;
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typedef unsigned int nrv_uint32;
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#define nrv_byte unsigned char
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#define nrv_bytep unsigned char *
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#define nrv_voidp void *
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// From ../p_unix.h
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struct b_info { // 12-byte header before each compressed block
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unsigned sz_unc; // uncompressed_size
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unsigned sz_cpr; // compressed_size
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unsigned char b_method; // compression algorithm
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unsigned char b_ftid; // filter id
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unsigned char b_cto8; // filter parameter
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unsigned char b_unused;
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struct timeval {
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unsigned tv_sec;
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unsigned tv_usec;
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};
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struct timespec {
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unsigned tv_sec;
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long tv_nsec;
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};
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struct l_info // 12-byte trailer in header for loader (offset 116)
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{
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uint32_t l_checksum;
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uint32_t l_magic;
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uint16_t l_lsize;
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uint8_t l_version;
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uint8_t l_format;
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};
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struct p_info // 12-byte packed program header follows stub loader
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{
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uint32_t p_progid;
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uint32_t p_filesize;
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uint32_t p_blocksize;
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};
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// misc constants
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#define SEEK_SET 0
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#define SEEK_CUR 1
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@ -121,6 +79,66 @@ struct p_info // 12-byte packed program header follows stub loader
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#define PAGE_MASK (~0u<<12) // discards the offset, keeps the page
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#define PAGE_SIZE ( 1u<<12)
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#define O_RDONLY 00
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#define O_WRONLY 01
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#define O_RDWR 02
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#define O_CREAT 0100
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#define O_EXCL 0200
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#define R_OK 4
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#define W_OK 2
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#define X_OK 1
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#define F_OK 0
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#define F_GETFD 1
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#define F_SETFD 2
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#define FD_CLOEXEC 1
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// <errno.h>
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#define ENOENT 2
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#define EINTR 4
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// <sys/mman.h>
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#define PROT_READ 0x1
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#define PROT_WRITE 0x2
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#define PROT_EXEC 0x4
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#define PROT_NONE 0x0
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#define MAP_SHARED 0x01
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#define MAP_PRIVATE 0x02
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#define MAP_FIXED 0x10
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#define MAP_ANONYMOUS 0x20
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// <asm/unistd.h>
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#define __NR_exit 1
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#define __NR_fork 2
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#define __NR_read 3
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#define __NR_write 4
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#define __NR_open 5
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#define __NR_close 6
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#define __NR_waitpid 7
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#define __NR_unlink 10
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#define __NR_execve 11
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#define __NR_lseek 19
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#define __NR_getpid 20
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#define __NR_access 33
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#define __NR_brk 45
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#define __NR_fcntl 55
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#define __NR_getrusage 77
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#define __NR_gettimeofday 78
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#define __NR_mmap 90
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#define __NR_munmap 91
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#define __NR_ftruncate 93
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#define __NR_adjtimex 124
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#define __NR_mprotect 125
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#define __NR_personality 136
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#define __NR_msync 144
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#define __NR_nanosleep 162
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#define __NR_getcwd 183
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/*************************************************************************
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// syscalls
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@ -187,7 +205,7 @@ type name(type1 arg1) \
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return (type) __res; \
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}
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// special for mmap; somehow Z0(arg1) and Z1(arg1) don't work
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// special for mmap; somehow Z0(arg1) and Z1(arg1) do not work
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#define _syscall1m(type,name,type1,arg1) \
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type name(type1 arg1) \
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{ \
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@ -274,15 +292,9 @@ type name(type1 arg1,type2 arg2,type3 arg3) \
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return (type) __res; \
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}
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#define access syscall_access
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#define _exit syscall_exit
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#define fcntl syscall_fcntl
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#define getcwd syscall_getcwd
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#define getrusage syscall_getrusage
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#define gettimeofday syscall_gettimeofday
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#define nanosleep syscall_nanosleep
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#define open syscall_open
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#define personality syscall_personality
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#define exit syscall_exit
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static inline _syscall2(int,access,const char *,file,int,mode)
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static inline _syscall1(int,adjtimex,struct timex *,ntx)
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@ -309,12 +321,155 @@ static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
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static inline _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
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static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
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static inline _syscall1(int,unlink,const char *,file)
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#define exit _exit
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#undef Z0
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#undef Z1
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/*************************************************************************
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// <elf.h>
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**************************************************************************/
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typedef uint16_t Elf32_Half;
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typedef uint16_t Elf64_Half;
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typedef uint32_t Elf32_Word;
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typedef int32_t Elf32_Sword;
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typedef uint32_t Elf64_Word;
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typedef int32_t Elf64_Sword;
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typedef uint64_t Elf32_Xword;
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typedef int64_t Elf32_Sxword;
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typedef uint64_t Elf64_Xword;
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typedef int64_t Elf64_Sxword;
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typedef uint32_t Elf32_Addr;
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typedef uint64_t Elf64_Addr;
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typedef uint32_t Elf32_Off;
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typedef uint64_t Elf64_Off;
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typedef uint16_t Elf32_Section;
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typedef uint16_t Elf64_Section;
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typedef Elf32_Half Elf32_Versym;
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typedef Elf64_Half Elf64_Versym;
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#define EI_NIDENT 16
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typedef struct
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{
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unsigned char e_ident[EI_NIDENT];
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Elf32_Half e_type;
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Elf32_Half e_machine;
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Elf32_Word e_version;
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Elf32_Addr e_entry;
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Elf32_Off e_phoff;
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Elf32_Off e_shoff;
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Elf32_Word e_flags;
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Elf32_Half e_ehsize;
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Elf32_Half e_phentsize;
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Elf32_Half e_phnum;
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Elf32_Half e_shentsize;
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Elf32_Half e_shnum;
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Elf32_Half e_shstrndx;
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} Elf32_Ehdr;
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typedef struct
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{
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Elf32_Word p_type;
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Elf32_Off p_offset;
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Elf32_Addr p_vaddr;
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Elf32_Addr p_paddr;
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Elf32_Word p_filesz;
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Elf32_Word p_memsz;
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Elf32_Word p_flags;
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Elf32_Word p_align;
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} Elf32_Phdr;
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typedef struct
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{
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int a_type;
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union {
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long a_val;
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void *a_ptr;
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void (*a_fcn) (void);
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} a_un;
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} Elf32_auxv_t;
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#define AT_NULL 0
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#define AT_IGNORE 1
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#define AT_PHDR 3
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#define AT_PHENT 4
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#define AT_PHNUM 5
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#define AT_PAGESZ 6
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#define AT_ENTRY 9
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#define ET_DYN 3
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#define PF_X 1
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#define PF_W 2
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#define PF_R 4
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#define PT_LOAD 1
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#define PT_INTERP 3
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#define PT_PHDR 6
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/*************************************************************************
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// UPX stuff
|
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**************************************************************************/
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// !!! must be the same as in p_unix.h !!!
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#define OVERHEAD 2048
|
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#define UPX_MAGIC_LE32 0x21585055 // "UPX!"
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|
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// patch constants for our loader (le32 format)
|
||||
#define UPX1 0x31585055 // "UPX1"
|
||||
#define UPX2 0x32585055 // "UPX2"
|
||||
#define UPX3 0x33585055 // "UPX4"
|
||||
#define UPX4 0x34585055 // "UPX4"
|
||||
#define UPX5 0x35585055 // "UPX5"
|
||||
|
||||
|
||||
typedef int nrv_int;
|
||||
typedef int nrv_int32;
|
||||
typedef unsigned int nrv_uint;
|
||||
typedef unsigned int nrv_uint32;
|
||||
#define nrv_byte unsigned char
|
||||
#define nrv_bytep unsigned char *
|
||||
#define nrv_voidp void *
|
||||
|
||||
|
||||
// From ../p_unix.h
|
||||
struct b_info { // 12-byte header before each compressed block
|
||||
unsigned sz_unc; // uncompressed_size
|
||||
unsigned sz_cpr; // compressed_size
|
||||
unsigned char b_method; // compression algorithm
|
||||
unsigned char b_ftid; // filter id
|
||||
unsigned char b_cto8; // filter parameter
|
||||
unsigned char b_unused;
|
||||
};
|
||||
|
||||
struct l_info // 12-byte trailer in header for loader (offset 116)
|
||||
{
|
||||
uint32_t l_checksum;
|
||||
uint32_t l_magic;
|
||||
uint16_t l_lsize;
|
||||
uint8_t l_version;
|
||||
uint8_t l_format;
|
||||
};
|
||||
|
||||
struct p_info // 12-byte packed program header follows stub loader
|
||||
{
|
||||
uint32_t p_progid;
|
||||
uint32_t p_filesize;
|
||||
uint32_t p_blocksize;
|
||||
};
|
||||
|
||||
|
||||
#define CONST_CAST(type, var) \
|
||||
((type) ((uintptr_t) (var)))
|
||||
|
||||
|
||||
/*
|
||||
vi:ts=4:et:nowrap
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user