mirror of
https://github.com/upx/upx
synced 2025-09-28 19:06:07 +08:00
First step for possibly using ElfLinker with linux execve/interp/shell stubs
as well.
This commit is contained in:
Markus F.X.J. Oberhumer
parent
14822e6395
commit
3f4acb33f9
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@ -234,6 +234,7 @@ tmp/amd64-linux.elf-fold.o : $(srcdir)/src/$$T.S
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tmp/amd64-linux.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c -Os $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -265,6 +266,7 @@ tmp/arm-linux.elf-fold.o : $(srcdir)/src/$$T.S
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tmp/arm-linux.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c -Os $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -294,6 +296,7 @@ tmp/armeb-linux.elf-fold.o : $(srcdir)/src/$$T.S
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tmp/armeb-linux.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c -Os $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -390,6 +393,7 @@ tmp/i386-bsd.syscall.o: $(srcdir)/src/$$T.S
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tmp/i386-bsd.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# info: we use the tc settings from i386-linux.elf
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@ -412,6 +416,7 @@ tmp/i386-openbsd.elf-fold.o : $(srcdir)/src/$$T.S
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tmp/i386-openbsd.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -440,6 +445,7 @@ tmp/i386-bsd.elf.execve-fold.o : $(srcdir)/src/$$T.S
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tmp/i386-bsd.elf.execve-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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tmp/i386-bsd.elf.execve-upx_itoa.o: $(srcdir)/src/$$T.S
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$(call tc,gcc) -c -x assembler-with-cpp $< -o $@
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@ -523,6 +529,7 @@ tmp/i386-linux.elf-fold.o : $(srcdir)/src/$$T.S
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tmp/i386-linux.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -550,6 +557,7 @@ tmp/i386-linux.elf.execve-fold.o : $(srcdir)/src/$$T.S
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tmp/i386-linux.elf.execve-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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tmp/i386-linux.elf.execve-upx_itoa.o: $(srcdir)/src/$$T.S
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$(call tc,gcc) -c -x assembler-with-cpp $< -o $@
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@ -581,6 +589,7 @@ tmp/i386-linux.elf.interp-fold.o : $(srcdir)/src/$$T.S
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tmp/i386-linux.elf.interp-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -608,6 +617,7 @@ tmp/i386-linux.elf.shell-fold.o : $(srcdir)/src/$$T.S
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tmp/i386-linux.elf.shell-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -712,6 +722,7 @@ tmp/powerpc-darwin.macho-fold.o : $(srcdir)/src/$$T.S
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tmp/powerpc-darwin.macho-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c -Os $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -743,6 +754,7 @@ tmp/powerpc-linux.elf-fold.o : $(srcdir)/src/$$T.S
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tmp/powerpc-linux.elf-main.o : $(srcdir)/src/$$T.c
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$(call tc,gcc) -c -Os $< -o $@
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$(call tc,f-objstrip,$@)
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$(call tc,objdump) -dr $(tc_objdump_disasm_options) $@ | $(RTRIM) > $@.disasm
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# /***********************************************************************
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@ -751,12 +763,10 @@ tmp/powerpc-linux.elf-main.o : $(srcdir)/src/$$T.c
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ifneq ($(strip $(STUBS)),)
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# FIXME: we want a dependency-only prerequisite here
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$(STUBS): tmp/.tmp-stamp $(MAKEFILE_LIST)
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$(STUBS): $(top_srcdir)/src/stub/scripts/bin2h.py
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$(STUBS): tmp/.tmp-stamp $(MAKEFILE_LIST) $(top_srcdir)/src/stub/scripts/bin2h.py
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endif
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-include tmp/*.d
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.DELETE_ON_ERROR: %.h %.o
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ifneq ($(strip $(STUBS)),)
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.DELETE_ON_ERROR: $(STUBS)
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endif
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@ -31,7 +31,6 @@
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#include "include/linux.h"
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extern void exit(int);
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/*************************************************************************
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@ -176,7 +176,7 @@ go_self(char const *tmpname, char *argv[], char *envp[])
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// Check for working /proc/self/fd/X by accessing the
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// temp file again, now via temp fdi.
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if (UPX2 == access(procself_buf, R_OK | X_OK)) {
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if (UPX2 == (unsigned) access(procself_buf, R_OK | X_OK)) {
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// Now it's safe to unlink the temp file (as it is still open).
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unlink(tmpname);
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// Set the file close-on-exec.
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@ -31,6 +31,7 @@
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#include "include/linux.h"
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void *mmap(void *, size_t, int, int, int, off_t);
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/*************************************************************************
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@ -184,8 +185,6 @@ do_brk(void *addr)
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return brk(addr);
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}
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extern void *mmap(void *addr, size_t len,
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int prot, int flags, int fd, off_t offset);
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/*************************************************************************
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// UPX & NRV stuff
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@ -179,7 +179,7 @@ go_self(char const *tmpname, char *argv[], char *envp[])
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// Check for working /proc/self/fd/X by accessing the
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// temp file again, now via temp fdi.
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if (UPX2 == access(procself_buf, R_OK | X_OK)) {
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if (UPX2 == (unsigned) access(procself_buf, R_OK | X_OK)) {
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// Now it's safe to unlink the temp file (as it is still open).
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unlink(tmpname);
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// Set the file close-on-exec.
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@ -1,4 +1,4 @@
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/* BSD.h -- common stuff to the BSD stub loaders
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/* bsd.h -- common stuff for the BSD stub loaders
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This file is part of the UPX executable compressor.
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@ -130,7 +130,7 @@ struct timespec {
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#define MAP_PRIVATE 0x02
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#define MAP_FIXED 0x10
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#define MAP_ANONYMOUS 0x1000 /* differs from Linux */
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#define MAP_DENYWRITE 0x0 /* does not exist on BSD ? */
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#define MAP_DENYWRITE 0x0 /* does not exist on BSD ? */
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/*************************************************************************
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@ -143,26 +143,27 @@ struct timespec {
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// use optimized assembly statements to further decrease the size.
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**************************************************************************/
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extern void *brk(void *);
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extern int close(int);
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extern void *mmap(void *, size_t, int, int, int, unsigned);
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extern int munmap(void *, size_t);
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extern int mprotect(void const *, size_t, int);
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extern int open(char const *, unsigned, unsigned);
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extern ssize_t read(int, void *, size_t);
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extern ssize_t write(int, char const *, size_t);
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void exit(int) __attribute__((noreturn));
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int access(char const *,int);
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int execve(char const *,char const *const *,char const *const *);
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int fcntl(int,int,long);
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int ftruncate(int,size_t);
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pid_t fork(void);
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pid_t getpid(void);
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int gettimeofday(struct timeval *,void *);
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int nanosleep(struct timespec const *,struct timespec *);
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pid_t waitpid(pid_t,int *,int);
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int unlink(char const *);
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void *brk(void *);
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int close(int);
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void exit(int) __attribute__((__noreturn__,__nothrow__));
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void *mmap(void *, size_t, int, int, int, off_t);
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int munmap(void *, size_t);
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int mprotect(void const *, size_t, int);
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int open(char const *, unsigned, unsigned);
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ssize_t read(int, void *, size_t);
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ssize_t write(int, void const *, size_t);
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extern int access(char const *,int);
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extern int execve(char const *,char const *const *,char const *const *);
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extern int fcntl(int,int,long);
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extern int ftruncate(int,size_t);
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extern pid_t fork(void);
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extern pid_t getpid(void);
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extern int gettimeofday(struct timeval *,void *);
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extern int nanosleep(struct timespec const *,struct timespec *);
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extern pid_t waitpid(pid_t,int *,int);
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extern int unlink(char const *);
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/*************************************************************************
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// <elf.h>
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@ -297,12 +298,22 @@ typedef struct
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#define UPX_MAGIC_LE32 0x21585055 // "UPX!"
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#if 1
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// patch constants for our loader (le32 format)
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#define UPX1 0x31585055 // "UPX1"
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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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//#define UPX5 0x35585055 // "UPX5"
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#else
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// transform into relocations when using ElfLinker
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extern const unsigned UPX2;
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extern const unsigned UPX3;
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extern const unsigned UPX4;
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#define UPX2 ((unsigned) (const void *) &UPX2)
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#define UPX3 ((unsigned) (const void *) &UPX3)
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#define UPX4 ((unsigned) (const void *) &UPX4)
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#endif
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typedef int nrv_int;
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119
src/stub/src/include/darwin.h
Normal file
119
src/stub/src/include/darwin.h
Normal file
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@ -0,0 +1,119 @@
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/* darwin.h -- common stuff for the Darwin stub loaders
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This file is part of the UPX executable compressor.
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Copyright (C) 1996-2006 Markus Franz Xaver Johannes Oberhumer
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Copyright (C) 1996-2006 Laszlo Molnar
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All Rights Reserved.
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UPX and the UCL library are free software; you can redistribute them
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and/or modify them under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING.
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If not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Markus F.X.J. Oberhumer Laszlo Molnar
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<mfx@users.sourceforge.net> <ml1050@users.sourceforge.net>
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*/
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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 completely freestanding
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#if defined(__GNUC__)
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# if defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
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# define ACC_CC_GNUC (__GNUC__ * 0x10000L + __GNUC_MINOR__ * 0x100 + __GNUC_PATCHLEVEL__)
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# elif defined(__GNUC_MINOR__)
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# define ACC_CC_GNUC (__GNUC__ * 0x10000L + __GNUC_MINOR__ * 0x100)
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# else
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# define ACC_CC_GNUC (__GNUC__ * 0x10000L)
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# endif
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#endif
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#define ACC_UNUSED(var) ((void) var)
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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 long ssize_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 (ACC_CC_GNUC >= 0x020800ul)
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__extension__ typedef long long int64_t;
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__extension__ typedef unsigned long long uint64_t;
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#elif defined(_WIN32)
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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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// misc constants
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#define PAGE_MASK (~0ul<<12)
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#define PAGE_SIZE (-PAGE_MASK)
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#define O_RDONLY 0
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/*************************************************************************
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// syscalls
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**************************************************************************/
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int close(int);
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void exit(int) __attribute__((__noreturn__,__nothrow__));
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int mprotect(void *, size_t, int);
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int open(char const *, unsigned, unsigned);
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ssize_t pread(int, void *, size_t, unsigned);
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/*************************************************************************
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// UPX stuff
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**************************************************************************/
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#define UPX_MAGIC_LE32 0x21585055 // "UPX!"
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#define nrv_byte unsigned char
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typedef unsigned int nrv_uint;
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#define CONST_CAST(type, var) \
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((type) ((uintptr_t) (var)))
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#if (ACC_CC_GNUC >= 0x030300)
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# define __attribute_cdecl __attribute__((__cdecl__, __used__))
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#elif (ACC_CC_GNUC >= 0x020700)
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# define __attribute_cdecl __attribute__((__cdecl__))
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#else
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# define __attribute_cdecl
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#endif
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/*
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vi:ts=4:et:nowrap
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*/
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@ -1,4 +1,4 @@
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/* linux.hh -- common stuff the the Linux stub loaders
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/* linux.h -- common stuff for the Linux stub loaders
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This file is part of the UPX executable compressor.
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@ -224,7 +224,7 @@ type name(type1 arg1) \
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}
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#define _syscall1nr(name,type1,arg1) \
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void __attribute__((__noreturn__)) name(type1 arg1) \
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void __attribute__((__noreturn__,__nothrow__)) name(type1 arg1) \
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{ \
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if (Z1(__NR_##name)) { \
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if (Z0(arg1)) { \
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@ -331,8 +331,8 @@ static inline _syscall1(int,close,int,fd)
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static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
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static inline _syscall1nr(_exit,int,exitcode)
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static inline _syscall3(int,fcntl,int,fd,int,cmd,long,arg)
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static inline _syscall2(int,ftruncate,int,fd,size_t,len)
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static inline _syscall0(pid_t,fork)
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static inline _syscall2(int,ftruncate,int,fd,size_t,len)
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static inline _syscall0(pid_t,getpid)
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static inline _syscall2(int,gettimeofday,struct timeval *,tv,void *,tz)
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static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,whence)
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@ -352,12 +352,13 @@ static inline _syscall1(int,unlink,const char *,file)
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void *brk(void *);
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int close(int);
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void exit(int) __attribute__((__noreturn__,__nothrow__));
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void *mmap(void *, size_t, int, int, int, off_t);
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int munmap(void *, size_t);
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int mprotect(void const *, size_t, int);
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int open(char const *, unsigned, unsigned);
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ssize_t read(int, void *, size_t);
|
||||
void exit(int) __attribute__((noreturn));
|
||||
ssize_t write(int, void const *, size_t);
|
||||
|
||||
#endif /*}*/
|
||||
|
||||
|
|
@ -471,6 +472,7 @@ typedef struct
|
|||
#define AT_PHENT 4
|
||||
#define AT_PHNUM 5
|
||||
#define AT_PAGESZ 6
|
||||
#define AT_BASE 7
|
||||
#define AT_ENTRY 9
|
||||
|
||||
#define ET_EXEC 2
|
||||
|
|
@ -494,12 +496,22 @@ typedef struct
|
|||
|
||||
#define UPX_MAGIC_LE32 0x21585055 // "UPX!"
|
||||
|
||||
#if 1
|
||||
// patch constants for our loader (le32 format)
|
||||
#define UPX1 0x31585055 // "UPX1"
|
||||
//#define UPX1 0x31585055 // "UPX1"
|
||||
#define UPX2 0x32585055 // "UPX2"
|
||||
#define UPX3 0x33585055 // "UPX4"
|
||||
#define UPX4 0x34585055 // "UPX4"
|
||||
#define UPX5 0x35585055 // "UPX5"
|
||||
//#define UPX5 0x35585055 // "UPX5"
|
||||
#else
|
||||
// transform into relocations when using ElfLinker
|
||||
extern const unsigned UPX2;
|
||||
extern const unsigned UPX3;
|
||||
extern const unsigned UPX4;
|
||||
#define UPX2 ((unsigned) (const void *) &UPX2)
|
||||
#define UPX3 ((unsigned) (const void *) &UPX3)
|
||||
#define UPX4 ((unsigned) (const void *) &UPX4)
|
||||
#endif
|
||||
|
||||
|
||||
typedef int nrv_int;
|
||||
|
|
|
|||
|
|
@ -27,28 +27,10 @@
|
|||
|
||||
John F. Reiser
|
||||
<jreiser@users.sourceforge.net>
|
||||
*/
|
||||
*/
|
||||
|
||||
typedef long ssize_t;
|
||||
typedef unsigned long size_t;
|
||||
typedef size_t uintptr_t;
|
||||
__extension__ typedef unsigned long long off_t;
|
||||
typedef unsigned char nrv_byte;
|
||||
typedef unsigned int nrv_uint;
|
||||
|
||||
#define UPX_MAGIC_LE32 0x21585055 // "UPX!"
|
||||
#define PAGE_MASK (~0u<<12)
|
||||
#define PAGE_SIZE -PAGE_MASK
|
||||
#define O_RDONLY 0
|
||||
|
||||
int close(int);
|
||||
void exit(int) __attribute__((__noreturn__));
|
||||
int mprotect(void *, size_t, int);
|
||||
int open(char const *, unsigned, unsigned);
|
||||
ssize_t pread(int, void *, size_t, unsigned);
|
||||
|
||||
#define CONST_CAST(type, var) \
|
||||
((type) ((uintptr_t) (var)))
|
||||
#include "include/darwin.h"
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
|
|
@ -59,6 +41,7 @@ ssize_t pread(int, void *, size_t, unsigned);
|
|||
// it at an address different from it load address: there must be no
|
||||
// static data, and no string constants.
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
// "file" util
|
||||
**************************************************************************/
|
||||
|
|
@ -102,6 +85,7 @@ err_exit(int a)
|
|||
}
|
||||
#endif //}
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
// UPX & NRV stuff
|
||||
**************************************************************************/
|
||||
|
|
|
|||
|
|
@ -32,6 +32,7 @@
|
|||
|
||||
#include "include/linux.h"
|
||||
|
||||
|
||||
/*************************************************************************
|
||||
// configuration section
|
||||
**************************************************************************/
|
||||
|
|
@ -47,8 +48,6 @@
|
|||
// "file" util
|
||||
**************************************************************************/
|
||||
|
||||
extern void exit (int __status) __attribute__ ((__nothrow__)) __attribute__ ((__noreturn__));
|
||||
|
||||
typedef struct {
|
||||
size_t size; // must be first to match size[0] uncompressed size
|
||||
char *buf;
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user