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Revamp --android-shlib

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Android "Oreo" wants to deal with ElfXX_Shdr[].  So splice 4KiB into PT_LOAD[0]
with an "extra" copy of them.  This requires careful relocation processing.
It also costs a page at run time, and an average of a page in the file
(depending on fragmentation at the boundary between r-x and rw- .)

https://github.com/upx/upx/issues/124
https://github.com/upx/upx/issues/139
https://github.com/upx/upx/issues/142

	modified:   p_elf_enum.h
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   stub/src/arm.v4a-linux.shlib-init.S
	modified:   stub/src/arm.v4t-linux.shlib-init.S
	modified:   stub/src/arm64-linux.shlib-init.S

	modified:   stub/arm.v5a-linux.shlib-init.h
	modified:   stub/arm.v5t-linux.shlib-init.h
	modified:   stub/arm64-linux.shlib-init.h

	modified:   ../.github/travis_testsuite_1.sh
This commit is contained in:
John Reiser
2018-01-15 16:08:34 -08:00
parent f3a7620ae8
commit c34fe09a79
12 changed files with 1497 additions and 1283 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/p_elf_enum.h
+26
View File
@@ -148,6 +148,7 @@
DT_NULL = 0, /* End flag */
DT_NEEDED = 1, /* Name of needed library */
DT_PLTRELSZ = 2, /* Size in bytes of PLT relocs */
DT_PLTGOT = 3, /* Processor defined value */
DT_HASH = 4, /* Hash table of symbol names */
DT_STRTAB = 5, /* String table */
DT_SYMTAB = 6, /* Symbol table */
@@ -155,6 +156,7 @@
DT_RELASZ = 8, /* Total size of Rela relocs */
DT_RELAENT = 9, /* Size of one RELA relocation */
DT_INIT = 12, /* Address of init function */
DT_FINI = 13, /* Address of termination function */
DT_REL = 17, /* Relocations which contain no addend */
DT_RELSZ = 18, /* Total size of Rel relocs */
DT_RELENT = 19, /* Size of one Rel relocation */
@@ -162,6 +164,9 @@
DT_PLTREL = 20, /* Type of reloc in PLT */
DT_TEXTREL = 22, /* Reloc might modify .text */
DT_JMPREL = 23, /* Address of PLT relocs */
DT_INIT_ARRAY = 25, /* Array with addresses of init fct */
DT_FINI_ARRAY = 26, /* Array with addresses of fini fct */
DT_PREINIT_ARRAY = 32, /* Array with addresses of preinit fct*/
DT_CHECKSUM = 0x6ffffdf8, /* Only for prelink? */
DT_GNU_HASH = 0x6ffffef5, /* GNU-style hash table */
DT_VERSYM = 0x6ffffff0, /* version[] for each symbol */
@@ -209,6 +214,27 @@
#endif
#ifdef WANT_REL_ENUM //{
static unsigned ELF32_R_TYPE(unsigned x) { return 0xff & x; }
static unsigned ELF64_R_TYPE(upx_uint64_t x) { return 0xffffffff & x; }
enum { // relocation types
R_386_RELATIVE = 8,
R_AARCH64_RELATIVE = 1027,
R_ARM_RELATIVE = 23,
R_PPC_RELATIVE = 22,
R_PPC64_RELATIVE = R_PPC_RELATIVE,
R_X86_64_RELATIVE = 8,
R_386_JMP_SLOT = 7,
R_AARCH64_JUMP_SLOT = 1026,
R_ARM_JUMP_SLOT = 22,
R_PPC_JMP_SLOT = 21,
R_PPC64_JMP_SLOT = R_PPC_JMP_SLOT,
R_X86_64_JUMP_SLOT = 7
};
#endif //}
#ifdef WANT_NHDR_ENUM
#undef WANT_NHDR_ENUM
enum { // ELF PT_NOTE types