UPX(the Ultimate Packer for  eXecutables)是一个非常全面的可执行文件压缩软件,支持dos/exe、dos/com、dos/sys、djgpp2/coff、 watcom/le、win32/pe、rtm32/pe、tmt/adam、atari/tos、linux/i386等几乎所有平台上的可执行文件,   具有极佳的压缩比,还可以对未压缩的文件和压缩完后进行比较。
 
Changes in UPX 3.96 (January 23, 2020):
Bug fixes
Changes in UPX 3.95 (August 26, 2018):
Flag — android-shlib to work around bad design in Android
Flag — force-pie when ET_DYN main program is not marked as DF_1_PIE
Better compatibility with varying layout of address space on Linux
Support for 4 PT_LOAD layout in ELF generated by binutils-2.31
Bug fixes, particularly better diagnosis of malformed input
Bug fixes