Master/upx
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

ARM64 hacking

Browse Source 
modified:   p_lx_elf.cpp
	modified:   stub/src/arch/arm64/v8/macros.S
	modified:   stub/src/arm64-darwin.macho-fold.S
	modified:   stub/src/arm64-linux.elf-entry.S

	modified:   stub/arm64-darwin.macho-entry.h
	modified:   stub/arm64-darwin.macho-fold.h
	modified:   stub/arm64-linux.elf-entry.h
	modified:   stub/arm64-linux.elf-fold.h
	modified:   stub/tmp/arm64-darwin.macho-fold.map
	modified:   stub/tmp/arm64-linux.elf-entry.bin.dump
	modified:   stub/tmp/arm64-linux.elf-fold.map
This commit is contained in:
John Reiser
2017-03-14 20:08:28 -07:00
parent 68a2b91ccb
commit 9f554a14fd
11 changed files with 705 additions and 708 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/p_lx_elf.cpp
+8 -6
View File
@@ -754,6 +754,7 @@ void PackLinuxElf32::updateLoader(OutputFile * /*fo*/)
void PackLinuxElf64::updateLoader(OutputFile * /*fo*/)
{
set_te64(&elfout.ehdr.e_entry, sz_pack2 +
linker->getSymbolOffset("_start") +
get_te64(&elfout.phdr[0].p_vaddr));
}
@@ -1071,6 +1072,7 @@ PackLinuxElf64amd::defineSymbols(Filter const *)
len += (7&-lsize) + lsize;
is_big = (lo_va_user < (lo_va_stub + len + 2*page_size));
if (is_big && ehdri.ET_EXEC==get_te16(&ehdri.e_type)) {
// .e_entry is set later by PackLinuxElf64::updateLoader
set_te64( &elfout.ehdr.e_entry,
get_te64(&elfout.ehdr.e_entry) + lo_va_user - lo_va_stub);
set_te64(&elfout.phdr[0].p_vaddr, lo_va_user);
@@ -3253,18 +3255,18 @@ void PackLinuxElf32armBe::defineSymbols(Filter const *ft)
void PackLinuxElf64arm::defineSymbols(Filter const * /*ft*/)
{
lsize = /*getLoaderSize()*/ 4 * 1024; // upper bound; avoid circularity
unsigned lo_va_user = ~0u; // infinity
upx_uint64_t lo_va_user = ~0ul; // infinity
for (int j= e_phnum; --j>=0; ) {
if (PT_LOAD64 == get_te64(&phdri[j].p_type)) {
unsigned const va = get_te64(&phdri[j].p_vaddr);
if (PT_LOAD64 == get_te32(&phdri[j].p_type)) {
upx_uint64_t const va = get_te64(&phdri[j].p_vaddr);
if (va < lo_va_user) {
lo_va_user = va;
}
}
}
unsigned lo_va_stub = get_te64(&elfout.phdr[0].p_vaddr);
unsigned adrc = 0; // init: pacify c++-analyzer
unsigned adrm = 0; // init: pacify c++-analyzer
upx_uint64_t lo_va_stub = get_te64(&elfout.phdr[0].p_vaddr);
upx_uint64_t adrc = 0; // init: pacify c++-analyzer
upx_uint64_t adrm = 0; // init: pacify c++-analyzer
is_big = true; // kernel disallows mapping below 0x8000.
if (is_big) {