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Many changes for ELF shared libraries on Linux and Android

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Handling more than 2 PT_LOAD (and thus more than 1 executable PT_LOAD)
required extensive changes.  But the bonus is the infrastructure
to support a different (de-)compression algorithm for each PT_LOAD.

https://github.com/upx/upx/issues/341   i386 .so decompression
https://github.com/upx/upx/issues/609   armv7 .so on Android
https://github.com/upx/upx/issues/625   amd64 .so execution
https://github.com/upx/upx/issues/654   armv7 .exe
Not yet: .so on MIPS, PowerPC, PowerPC64
This commit is contained in:
John Reiser
2023-03-04 17:37:25 -08:00
committed by Markus F.X.J. Oberhumer
parent fa56a1d9cd
commit adb0ca8250
121 changed files with 15796 additions and 6036 deletions
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src/stub/tmp/amd64-linux.elf-so_entry.bin.dump
Vendored
+4 -4
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@@ -2,8 +2,8 @@ file format elf64-x86-64
Sections:
Idx Name Size VMA LMA File off Algn Flags
0 ELFMAINX 0b4 0 0 040 2**0 CONTENTS
1 ELFMAINZ 05 0 0 0f4 2**0 CONTENTS
0 ELFMAINX 0c7 0 0 040 2**0 CONTENTS
1 ELFMAINZ 05 0 0 0107 2**0 CONTENTS
SYMBOL TABLE:
0000000000000000 l d ELFMAINX 0 ELFMAINX
0000000000000000 l ELFMAINX 0 _start
@@ -11,8 +11,8 @@ SYMBOL TABLE:
RELOCATION RECORDS FOR [ELFMAINX]:
OFFSET TYPE VALUE
0000000000000006 R_X86_64_PC32 ELFMAINZ+0xfffffffffffffffc
0000000000000007 R_X86_64_PC32 ELFMAINZ+0xfffffffffffffffc
RELOCATION RECORDS FOR [ELFMAINZ]:
OFFSET TYPE VALUE
0000000000000001 R_X86_64_PC32 ELFMAINX+0x0000000000000015
0000000000000001 R_X86_64_PC32 ELFMAINX+0x0000000000000016