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ELF2: FIx powerpc64* lzma

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also follow-ons for https://github.com/upx/upx/issues/834
	modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   p_lx_elf.cpp
	modified:   stub/Makefile
	modified:   stub/src/amd64-linux.elf-main2.c
	modified:   stub/src/arch/powerpc/64le/lzma_d-common.S
	modified:   stub/src/arch/powerpc/64le/lzma_d.S
	modified:   stub/src/arch/powerpc/64le/ppc_regs.h
	modified:   stub/src/powerpc64-expand.S
	modified:   stub/src/powerpc64-linux.elf-fold.S
           plus generated *.h *.map *.dump
This commit is contained in:
John Reiser
2024-07-02 11:15:52 -07:00
parent a9b7a0cb27
commit c8a0540fd2
15 changed files with 3183 additions and 3133 deletions
Download Patch File Download Diff File Expand all files Collapse all files
misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
Generated
+7 -7
View File
@@ -66,7 +66,7 @@ e7bfe2365ce83121ef757f8be47aa158da537e8992c3b2082e08a0fc4512708b *mips-linux.elf
fcbd8b4709ee324eb772e5de45a85bac5b8e560460fb1d50d0958f2ce568be97 *mipsel-linux.elf/upx-3.95 fcbd8b4709ee324eb772e5de45a85bac5b8e560460fb1d50d0958f2ce568be97 *mipsel-linux.elf/upx-3.95
16b0df199ae2055fb98ddf8cf77a0ee2ea3fa9a386e9cc6dd940647532130c2f *powerpc-linux.elf/upx-3.91 16b0df199ae2055fb98ddf8cf77a0ee2ea3fa9a386e9cc6dd940647532130c2f *powerpc-linux.elf/upx-3.91
1561a7e36653475eeabe33f65890e9a25e9e00b69ffcfa7928f68d4c0f6b2179 *powerpc-linux.elf/upx-3.95 1561a7e36653475eeabe33f65890e9a25e9e00b69ffcfa7928f68d4c0f6b2179 *powerpc-linux.elf/upx-3.95
cf9174c4302d0670debde60baef584277dac91b8334a6440adfc295e1a24351b *powerpc64le-linux.elf/upx-3.95 037374e757fdac5832e00fc5901545543279bc5dc492a583dcf47275939c1ce0 *powerpc64le-linux.elf/upx-3.95
" "
expected_sha256sums__t120_compress_ucl_nrv2d_3_no_filter="\ expected_sha256sums__t120_compress_ucl_nrv2d_3_no_filter="\
84328c2e1cf60ede2d14f4146f6894a5f88bfd027ffccdcad411a05f4b11c6c4 *amd64-linux.elf/upx-3.91 84328c2e1cf60ede2d14f4146f6894a5f88bfd027ffccdcad411a05f4b11c6c4 *amd64-linux.elf/upx-3.91
@@ -89,7 +89,7 @@ ee769694227b4f2e6195852ce6cbd899fc0c3308f978dcb85c9fc768d21ce37f *mipsel-linux.e
73c3d6cee83136438b884e8dd3af19c9cb8298401e295bf0428616c75589090b *mipsel-linux.elf/upx-3.95 73c3d6cee83136438b884e8dd3af19c9cb8298401e295bf0428616c75589090b *mipsel-linux.elf/upx-3.95
d05786b4b729f13a9b325322c2ea41ca7db6f60fee9f82c58874a25ee7eca086 *powerpc-linux.elf/upx-3.91 d05786b4b729f13a9b325322c2ea41ca7db6f60fee9f82c58874a25ee7eca086 *powerpc-linux.elf/upx-3.91
5068e792280ded5f51eb7003807514bdb7fce8739170952fa3ec631d9743bb69 *powerpc-linux.elf/upx-3.95 5068e792280ded5f51eb7003807514bdb7fce8739170952fa3ec631d9743bb69 *powerpc-linux.elf/upx-3.95
c643acd0fbea82520dd9e659e3b246f1069d66baf13bce030c2523488ff151a3 *powerpc64le-linux.elf/upx-3.95 2f50e82cfca013d37d0081982f8731590bbb79cf95257736ef2dfa3ad4a42d93 *powerpc64le-linux.elf/upx-3.95
" "
expected_sha256sums__t130_compress_ucl_nrv2e_3_no_filter="\ expected_sha256sums__t130_compress_ucl_nrv2e_3_no_filter="\
24f1c2077016095f0cdebcef1546777e39fd1a76b39ce0ef9be2f11bb5e4a49f *amd64-linux.elf/upx-3.91 24f1c2077016095f0cdebcef1546777e39fd1a76b39ce0ef9be2f11bb5e4a49f *amd64-linux.elf/upx-3.91
@@ -112,7 +112,7 @@ d18aa30ba7a8bc500517b8dcdd16976806c88c5a49e721f8a54d216fb7f7b230 *mipsel-linux.e
fa3be8f93006a88c7ad3d9fd13f600c4f69745859eb76f7eab317a5b87d256ea *mipsel-linux.elf/upx-3.95 fa3be8f93006a88c7ad3d9fd13f600c4f69745859eb76f7eab317a5b87d256ea *mipsel-linux.elf/upx-3.95
1eaa5a0165d9d7cd6c0dd1f6c223f60cb5c213ff8f74af78764b075a7202f334 *powerpc-linux.elf/upx-3.91 1eaa5a0165d9d7cd6c0dd1f6c223f60cb5c213ff8f74af78764b075a7202f334 *powerpc-linux.elf/upx-3.91
39133844ee0264df192e96e2447f5383e7cef42dbf08e9dd5b8928328894f62b *powerpc-linux.elf/upx-3.95 39133844ee0264df192e96e2447f5383e7cef42dbf08e9dd5b8928328894f62b *powerpc-linux.elf/upx-3.95
aaeb2c121f815cad87d3a9b0c784894ae15e8c689d47cb934f433edc57d2928c *powerpc64le-linux.elf/upx-3.95 9f0562baf5988ec9bc11b07593a64bd7428cd77405dbefb52ff9a380c91d3d21 *powerpc64le-linux.elf/upx-3.95
" "
expected_sha256sums__t140_compress_lzma_2_no_filter="\ expected_sha256sums__t140_compress_lzma_2_no_filter="\
5e382e35684d069e54b1c3e06065049f604c6c63a326008fc5a8b07dfe580a09 *amd64-linux.elf/upx-3.91 5e382e35684d069e54b1c3e06065049f604c6c63a326008fc5a8b07dfe580a09 *amd64-linux.elf/upx-3.91
@@ -135,7 +135,7 @@ bfbcb18537081e3393c6d144101675bfe935192390405c3072449fbfa3b38069 *mipsel-linux.e
c8b1cbc45bc1c34f481bdf535bb21ea62d2a6a7ce8bcfb1460cb8c5de85e3c43 *mipsel-linux.elf/upx-3.95 c8b1cbc45bc1c34f481bdf535bb21ea62d2a6a7ce8bcfb1460cb8c5de85e3c43 *mipsel-linux.elf/upx-3.95
d2ee5c94812125bcc8970f42dd363ebe0f0fd9b3bdfe8973214e956978bc1dad *powerpc-linux.elf/upx-3.91 d2ee5c94812125bcc8970f42dd363ebe0f0fd9b3bdfe8973214e956978bc1dad *powerpc-linux.elf/upx-3.91
a214c035d403c1dc7b5d80d6cfd8e00e2278f8600332875f2e53e1c61648fdc2 *powerpc-linux.elf/upx-3.95 a214c035d403c1dc7b5d80d6cfd8e00e2278f8600332875f2e53e1c61648fdc2 *powerpc-linux.elf/upx-3.95
cc619c9dd1375c13acd41e8627fc7f441987b8d5c779e0815d4eda707fe1a94e *powerpc64le-linux.elf/upx-3.95 4018c5dcc8d1479ab64977c8b714421235a72b900d406c891c6913195bfc3a6c *powerpc64le-linux.elf/upx-3.95
" "
expected_sha256sums__t150_compress_ucl_2_all_filters="\ expected_sha256sums__t150_compress_ucl_2_all_filters="\
352c29b1409142882f937699929b7b5dc06bba8838f5bf3ca1395bc5ae182f48 *amd64-linux.elf/upx-3.91 352c29b1409142882f937699929b7b5dc06bba8838f5bf3ca1395bc5ae182f48 *amd64-linux.elf/upx-3.91
@@ -158,7 +158,7 @@ c30fa4adac1d1b0838e452e7f6591d433352ed719d32b161e6383828927e9b13 *mipsel-linux.e
b5ece56b5e674b8ba1a6bdd488ad41495d52a8a9e594bd84651e1d7f393d5e23 *mipsel-linux.elf/upx-3.95 b5ece56b5e674b8ba1a6bdd488ad41495d52a8a9e594bd84651e1d7f393d5e23 *mipsel-linux.elf/upx-3.95
e3825daa7fb8d509590c1db347a8403dbd899da453fb43850ebf1d31abbe0cba *powerpc-linux.elf/upx-3.91 e3825daa7fb8d509590c1db347a8403dbd899da453fb43850ebf1d31abbe0cba *powerpc-linux.elf/upx-3.91
20e2b5270c00b18770cc7fd9b2c4d523b2a33b215d354fb00d129d35219094f0 *powerpc-linux.elf/upx-3.95 20e2b5270c00b18770cc7fd9b2c4d523b2a33b215d354fb00d129d35219094f0 *powerpc-linux.elf/upx-3.95
b5c35549d81261e8cba45acb9a622421e26953aeb09355a2aeb46915c15cef5f *powerpc64le-linux.elf/upx-3.95 7bb92d8d8a53d9ff563d1512c47874ad9bc6bf0ecb06f1c2da92ec22b4206de5 *powerpc64le-linux.elf/upx-3.95
" "
expected_sha256sums__t160_compress_all_methods_1_no_filter="\ expected_sha256sums__t160_compress_all_methods_1_no_filter="\
095796a3c7949b8f7776a87983fe74f70e61dd47254bd3f1834234b11ae4f6bf *amd64-linux.elf/upx-3.91 095796a3c7949b8f7776a87983fe74f70e61dd47254bd3f1834234b11ae4f6bf *amd64-linux.elf/upx-3.91
@@ -181,7 +181,7 @@ c4cf58843905b62b0fe50266b926f46041a7329ca1f8237a5743fc54a6daed68 *mipsel-linux.e
558047321b8771a5445bd56741334a954f1d722d9e70764ca13a1075ad139378 *mipsel-linux.elf/upx-3.95 558047321b8771a5445bd56741334a954f1d722d9e70764ca13a1075ad139378 *mipsel-linux.elf/upx-3.95
4a57ba95ab87a2710d2e3f93a344b3f56cae08043c5b3f2ce55965a59d13762e *powerpc-linux.elf/upx-3.91 4a57ba95ab87a2710d2e3f93a344b3f56cae08043c5b3f2ce55965a59d13762e *powerpc-linux.elf/upx-3.91
c37806b0d68697276cdd208ab37c92e01055bfbab73c6bbdf054c95fe9cef3b9 *powerpc-linux.elf/upx-3.95 c37806b0d68697276cdd208ab37c92e01055bfbab73c6bbdf054c95fe9cef3b9 *powerpc-linux.elf/upx-3.95
90cc5c0105a941e4dd72d5a44557639618440cd4ef339b7c181d90541348d207 *powerpc64le-linux.elf/upx-3.95 8747ba2fc2b332588fe3aa50fcc303fcd516798552e0092699b8a9b718096ad5 *powerpc64le-linux.elf/upx-3.95
" "
expected_sha256sums__t170_compress_all_methods_no_lzma_5_no_filter="\ expected_sha256sums__t170_compress_all_methods_no_lzma_5_no_filter="\
9c0cbd5abc56d506be45a411613883079adbf3e5ff7f5652fd6cc2808bc4212a *amd64-linux.elf/upx-3.91 9c0cbd5abc56d506be45a411613883079adbf3e5ff7f5652fd6cc2808bc4212a *amd64-linux.elf/upx-3.91
@@ -204,6 +204,6 @@ eb01b6f27798690115cabb88314551579da509455232bbaa3276eddc25106d0d *i386-win32.pe/
b34e08324b5f078b1f7408afcf72f7b6fb7f2a25e76332459aa30c020124f04c *mipsel-linux.elf/upx-3.95 b34e08324b5f078b1f7408afcf72f7b6fb7f2a25e76332459aa30c020124f04c *mipsel-linux.elf/upx-3.95
1c0fde4880d16710cba3d2d285d8af01aff2b50bd8f0203afcd3a338a8a0b0b1 *powerpc-linux.elf/upx-3.91 1c0fde4880d16710cba3d2d285d8af01aff2b50bd8f0203afcd3a338a8a0b0b1 *powerpc-linux.elf/upx-3.91
60f7c8153f3e0ae5d793645b88b6323630fd1b8caf40511a26836835aa99228d *powerpc-linux.elf/upx-3.95 60f7c8153f3e0ae5d793645b88b6323630fd1b8caf40511a26836835aa99228d *powerpc-linux.elf/upx-3.95
ee0faaac156f1111862566023e1b5d662bbe8c256d027504976d74bb148b8c66 *powerpc64le-linux.elf/upx-3.95 d6ff4a6d2f0d4edd68dd8ab7c1c219a5d7820d53ccd512cc1eb6837b58b237d4 *powerpc64le-linux.elf/upx-3.95
" "
########## end .sha256sums.recreate ########## end .sha256sums.recreate
src/p_lx_elf.cpp
+20 -16
View File
@@ -8333,39 +8333,43 @@ Elf32_Sym const *PackLinuxElf32::elf_lookup(char const *name) const
throwCantPack("bad gnu_shift %#x", gnu_shift); throwCantPack("bad gnu_shift %#x", gnu_shift);
} }
if ((file_size + file_image) <= (void const *)hasharr) { if ((file_size + file_image) <= (void const *)hasharr) {
char msg[80]; snprintf(msg, sizeof(msg), throwCantPack("bad n_bucket %#x\n", n_bucket);
"bad n_bucket %#x\n", n_bucket);
throwCantPack(msg);
} }
if (!n_bitmask if (!n_bitmask
|| (unsigned)(file_size - ((char const *)bitmask - (char const *)(void const *)file_image)) || (unsigned)(file_size - ((char const *)bitmask - (char const *)(void const *)file_image))
<= sizeof(unsigned)*n_bitmask ) { <= sizeof(unsigned)*n_bitmask ) {
throwCantPack("bad n_bitmask %#x\n", n_bitmask); throwCantPack("bad n_bitmask %#x\n", n_bitmask);
} }
if (n_bucket) { if (n_bucket) { // -rust-musl can have "empty" hashtab
unsigned const h = gnu_hash(name); unsigned const h = gnu_hash(name);
unsigned const hbit1 = 037& h; unsigned const hbit1 = 037& h;
unsigned const hbit2 = 037& (h>>gnu_shift); unsigned const hbit2 = 037& (h>>gnu_shift);
unsigned const w = get_te32(&bitmask[(n_bitmask -1) & (h>>5)]); unsigned const w = get_te32(&bitmask[(n_bitmask -1) & (h>>5)]);
if (1& (w>>hbit1) & (w>>hbit2)) { if (1& (w>>hbit1) & (w>>hbit2)) {
unsigned bucket = get_te32(&buckets[h % n_bucket]); unsigned const hhead = get_te32(&buckets[h % n_bucket]);
if (n_bucket <= bucket) { if (n_bucket <= (hhead - symbias)) {
throwCantPack("bad DT_GNU_HASH n_bucket{%#x} <= buckets[%d]{%#x}\n", throwCantPack("bad DT_GNU_HASH n_bucket{%#x} <= buckets[%d]{%#x} - symbias{%#x}\n",
n_bucket, h % n_bucket, bucket); n_bucket, h % n_bucket, hhead, symbias);
} }
if (0!=bucket) { if (hhead) {
Elf32_Sym const *dsp = &dynsym[bucket]; Elf32_Sym const *dsp = &dynsym[hhead];
unsigned const *hp = &hasharr[bucket - symbias]; unsigned const *hp = &hasharr[hhead - symbias];
do if (0==((h ^ get_te32(hp))>>1)) { unsigned k;
unsigned st_name = get_te32(&dsp->st_name); do {
if (gashend <= hp) {
throwCantPack("bad DT_GNU_HASH[%#x] head=%u",
(unsigned)(hp - hasharr), hhead);
}
k = get_te32(hp);
if (0==((h ^ k)>>1)) {
unsigned const st_name = get_te32(&dsp->st_name);
char const *const p = get_str_name(st_name, (unsigned)-1); char const *const p = get_str_name(st_name, (unsigned)-1);
if (0==strcmp(name, p)) { if (0==strcmp(name, p)) {
return dsp; return dsp;
} }
} while (++dsp, }
((char const *)hp < (char const *)(file_size + file_image)) } while (++dsp, ++hp, 0==(1u& k));
&& 0==(1u& get_te32(hp++)));
} }
} }
} }
src/stub/Makefile
+3 -3
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@@ -1688,7 +1688,7 @@ tmp/powerpc64-darwin.macho-main.o : $(srcdir)/src/$$T.c
powerpc64le-linux.elf%.h : tc_list = powerpc64le-linux.elf default powerpc64le-linux.elf%.h : tc_list = powerpc64le-linux.elf default
powerpc64le-linux.elf%.h : tc_bfdname = elf64-powerpcle powerpc64le-linux.elf%.h : tc_bfdname = elf64-powerpcle
tc.powerpc64le-linux.elf.gcc = powerpc64-linux-gcc-4.9.2 -m64 -mlittle-endian -DBIG_ENDIAN=0 -nostdinc -MMD -MT $@ tc.powerpc64le-linux.elf.gcc = powerpc64-linux-gcc-4.9.2 -m64 -mlittle-endian -DBIG_ENDIAN=0 -DDAISY_CHAIN=1 -nostdinc -MMD -MT $@
tc.powerpc64le-linux.elf.gcc += -fno-exceptions -fno-asynchronous-unwind-tables -fno-stack-protector tc.powerpc64le-linux.elf.gcc += -fno-exceptions -fno-asynchronous-unwind-tables -fno-stack-protector
tc.powerpc64le-linux.elf.gcc += -Wall -W -Wcast-align -Wcast-qual -Wstrict-prototypes -Wwrite-strings -Werror tc.powerpc64le-linux.elf.gcc += -Wall -W -Wcast-align -Wcast-qual -Wstrict-prototypes -Wwrite-strings -Werror
@@ -1746,7 +1746,7 @@ tmp/powerpc64le-linux.elf-main2.s: $(srcdir)/src/$$T.c $(srcdir)/src/amd64-linux
powerpc64-linux.elf%.h : tc_list = powerpc64-linux.elf default powerpc64-linux.elf%.h : tc_list = powerpc64-linux.elf default
powerpc64-linux.elf%.h : tc_bfdname = elf64-powerpc powerpc64-linux.elf%.h : tc_bfdname = elf64-powerpc
tc.powerpc64-linux.elf.gcc = powerpc64-linux-gcc-4.9.2 -m64 -mbig-endian -DBIG_ENDIAN=1 -DUSE_TOC=1 -nostdinc -MMD -MT $@ tc.powerpc64-linux.elf.gcc = powerpc64-linux-gcc-4.9.2 -m64 -mbig-endian -DBIG_ENDIAN=1 -DUSE_TOC=1 -DDAISY_CHAIN=1 -nostdinc -MMD -MT $@
tc.powerpc64-linux.elf.gcc += -fno-exceptions -fno-asynchronous-unwind-tables -fno-stack-protector tc.powerpc64-linux.elf.gcc += -fno-exceptions -fno-asynchronous-unwind-tables -fno-stack-protector
tc.powerpc64-linux.elf.gcc += -mno-longcall -mno-toc tc.powerpc64-linux.elf.gcc += -mno-longcall -mno-toc
tc.powerpc64-linux.elf.gcc += -Wall -W -Wcast-align -Wcast-qual -Wstrict-prototypes -Wwrite-strings -Werror tc.powerpc64-linux.elf.gcc += -Wall -W -Wcast-align -Wcast-qual -Wstrict-prototypes -Wwrite-strings -Werror
@@ -1776,7 +1776,7 @@ powerpc64-linux.elf-fold.h : $(srcdir)/src/$$T.lds \
#auxv_up: #auxv_up:
# .quad .L7L.auxv_up,.TOC.@tocbase # .quad .L7L.auxv_up,.TOC.@tocbase
# .previous # .previous
$(call tc,gcc) -E -DBIG_ENDIAN=1 -DUSE_TOC=1 \ $(call tc,gcc) -E -DBIG_ENDIAN=1 -DUSE_TOC=1 -DDAISY_CHAIN=1 \
tmp/powerpc64-linux.elf-fold-2.S \ tmp/powerpc64-linux.elf-fold-2.S \
| > tmp/powerpc64-linux.elf-fold-3.S \ | > tmp/powerpc64-linux.elf-fold-3.S \
sed -e '/\.section\s*"\.toc","aw"/d' \ sed -e '/\.section\s*"\.toc","aw"/d' \
src/stub/powerpc64-linux.elf-fold.h
Generated
+1231 -1215
View File
File diff suppressed because it is too large Load Diff
src/stub/powerpc64le-linux.elf-fold.h
Generated
+1224 -1208
View File
File diff suppressed because it is too large Load Diff
src/stub/powerpc64le-linux.kernel.vmlinux.h
Generated
+562 -561
View File
File diff suppressed because it is too large Load Diff
src/stub/src/amd64-linux.elf-main2.c
-2
View File
@@ -119,8 +119,6 @@ extern void my_bkpt(void *, ...);
static int dprintf(char const *fmt, ...); // forward static int dprintf(char const *fmt, ...); // forward
#endif /*}*/ #endif /*}*/
extern void my_bkpt(void *, ...);
/************************************************************************* /*************************************************************************
// configuration section // configuration section
**************************************************************************/ **************************************************************************/
src/stub/src/arch/powerpc/64le/lzma_d-common.S
+33 -21
View File
@@ -29,9 +29,9 @@
#include "ppc_regs.h" #include "ppc_regs.h"
// http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#STACK // http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#STACK
SZ_LINK= 6*8 // (sp,cr,lr, xx,yy,zz) save area per calling convention SZ_LINK= 6*NBPW // (sp,cr,lr, xx,yy,zz) save area per calling convention
SZ_PSAV= 8*8 // for spilling a0-a7 if necessary SZ_PSAV= 8*NBPW // for spilling a0-a7 if necessary
retaddr = 2*8 // lr === pc retaddr = 2*NBPW // lr === pc
#define section .section #define section .section
@@ -56,8 +56,7 @@ retaddr = 2*8 // lr === pc
#define M_LZMA 14 #define M_LZMA 14
cmplwi cr0,meth,M_LZMA cmplwi cr0,meth,M_LZMA
bne cr0,not_lzma bne cr0,not_lzma
stdu sp,-(SZ_LINK+SZ_PSAV)(sp) // FR_10 defend against callers who omit the linkage area mr a7,sp // sp of caller
mflr r0
//Prepare for call to: //Prepare for call to:
//LzmaDecode( // from lzmaSDK/C/7zip/Compress/LZMA_C/LzmaDecode.h //LzmaDecode( // from lzmaSDK/C/7zip/Compress/LZMA_C/LzmaDecode.h
@@ -73,7 +72,6 @@ retaddr = 2*8 // lr === pc
la a1,2(src) // inp la a1,2(src) // inp
lbz t2,0(src) // first byte, replaces LzmaDecodeProperties() lbz t2,0(src) // first byte, replaces LzmaDecodeProperties()
std r0,retaddr(sp) // save return address in caller's frame
rldicl t1,t2,64-3,3 // t1= (t2>>3)==(lit_context-bits + lit_pos_bits) rldicl t1,t2,64-3,3 // t1= (t2>>3)==(lit_context-bits + lit_pos_bits)
clrldi t2,t2,64-3 // t2= (7& t2)==pos_bits clrldi t2,t2,64-3 // t2= (7& t2)==pos_bits
@@ -83,46 +81,60 @@ retaddr = 2*8 // lr === pc
li a0,-2*LZMA_LIT_SIZE li a0,-2*LZMA_LIT_SIZE
sld a0,a0,t1 // -2*LZMA_LIT_SIZE << (lit_context_bits + lit_pos_bits) sld a0,a0,t1 // -2*LZMA_LIT_SIZE << (lit_context_bits + lit_pos_bits)
addi a0,a0,-6*8 - 2*LZMA_BASE_SIZE addi a0,a0,-6*NBPW - 2*LZMA_BASE_SIZE
// alloca{sp,ra,orig_dst,&outSizeProcessed,slot(inSizeProcessed),*_bits, CLzmaDecoderState} // alloca{sp,ra,orig_dst,&outSizeProcessed,slot(inSizeProcessed),*_bits, CLzmaDecoderState}
mr a3,sp
add sp,sp,a0 // FR_11 allocate add sp,sp,a0 // FR_11 allocate
clrrdi sp,sp,6 // (1<<6) byte align (round down) clrrdi sp,sp,6 // (1<<6) byte align (round down)
li r0,0 li r0,0
mr a0,a3 // old sp mr a0,a7 // old sp
stw r0,0(a6) // outSizeProcessed= 0; XXX 32 BITS stw r0,0(a6) // outSizeProcessed= 0; XXX 32 BITS
1: 1:
stdu r0,-8(a0) // clear CLzmaDecoderState on stack stdu r0,-8(a0) // clear CLzmaDecoderState on stack
cmpld cr0,sp,a0 // compare logical ==> compare unsigned cmpld cr0,sp,a0 // compare logical ==> compare unsigned
blt cr0,1b blt cr0,1b
std a3,0(sp) // FR_11 chain
lbz r0,-1(a1) // second byte, replaces LzmaDecodeProperties() lbz r0,-1(a1) // second byte, replaces LzmaDecodeProperties()
la a3,4*8 + BIG_ENDIAN*4(sp) // &inSizeProcessed XXX 32 BITS la a3,4*NBPW + BIG_ENDIAN*4(sp) // &inSizeProcessed XXX 32 BITS
la a0,5*8 (sp) // &CLzmaDecoderState la a0,5*NBPW (sp) // &CLzmaDecoderState
stb t2,2(a0) // pos_bits stb t2,2(a0) // pos_bits
std a4,2*8(sp) // outp std a4,2*NBPW(sp) // outp
std a6,3*8(sp) // &outSizeProcessed std a6,3*NBPW(sp) // &outSizeProcessed
rldicl t1,r0,64-4,4 // t1= (r0>>4)==lit_pos_bits rldicl t1,r0,64-4,4 // t1= (r0>>4)==lit_pos_bits
clrldi r0,r0,64-4 // r0= (0xf& r0)==lit_context_bits clrldi r0,r0,64-4 // r0= (0xf& r0)==lit_context_bits
stb t1,1(a0) // lit_pos_bits stb t1,1(a0) // lit_pos_bits
stb r0,0(a0) // lit_context_bits stb r0,0(a0) // lit_context_bits
stdu sp,-(SZ_LINK+SZ_PSAV)(sp) // FR_12 defend against callers who omit the linkage area stdu a7,-(SZ_LINK+SZ_PSAV)(sp) // FR_12 defend against callers who omit the linkage area
mflr r0
std r0,retaddr(sp) // save return address in caller's frame
bl lzma_go // invoke LzmaDecode
// LZMA_DEC10 or LZMA_DEC20 returns here
ld r0,retaddr(sp) // in f_expand
ld sp,0(sp) // FR_12 de-allocate CLzmaDecoderState and bits
mtlr r0
blr // normal return from decompress to f_expand
lzma_go: // fall through into LzmaDecode: use LZMA_DEC10 or LZMA_DEC20 as subroutine
// LZMA_DEC30 is not used?
section LZMA_DEC30 // Out: a0= retval; a2= &hi stored; a4= &lo stored; lr= retaddr section LZMA_DEC30 // Out: a0= retval; a2= &hi stored; a4= &lo stored; lr= retaddr
la sp,SZ_LINK+SZ_PSAV(sp) // FR_12 un-defend /*1*/ la sp,SZ_LINK+SZ_PSAV(sp) // FR_12 un-defend
ld a2,3*8(sp) // &outSizeProcessed ld a2,3*NBPW(sp) // &outSizeProcessed
ld a4,2*8(sp) // &lowest byte stored ld a4,2*NBPW(sp) // &lowest byte stored
lwz a2,0(a2) // outSizeProcessed XXX 32 BITS lwz a2,0(a2) // outSizeProcessed XXX 32 BITS
ld sp,0(sp) // FR_11 de-alloc CLzmaDecoderState, incl. array of probabilities /*2*/ ld sp,0(sp) // FR_11 de-alloc CLzmaDecoderState, incl. array of probabilities
add a2,a2,a4 // &next byte to store add a2,a2,a4 // &next byte to store
ld r0,retaddr(sp) ld r0,retaddr(sp)
addi a2,a2,-1 // &highest byte stored addi a2,a2,-1 // &highest byte stored
ld sp,0(sp) // FR_10 un-allocate and un-chain
mtlr r0 mtlr r0
ld sp,0(sp) // FR_10 un-allocate and un-chain
not_lzma: #if !defined(WINDOWS_BACK) && defined(DAISY_CHAIN) //{ subroutine return
blr // return to *-expand.S: f_expand ==> decompress
#endif
not_lzma: // fall into daisy chain
// vi:ts=8:et // vi:ts=8:et
src/stub/src/arch/powerpc/64le/lzma_d.S
+1 -5
View File
@@ -2,16 +2,12 @@
// can contain endian-dependent code in the "64" and "64le" directories, // can contain endian-dependent code in the "64" and "64le" directories,
// but otherwise use lzma_d-common.S // but otherwise use lzma_d-common.S
#include "lzma_d-common.S" #include "../64le/lzma_d-common.S"
section LZMA_DEC10 section LZMA_DEC10
#include "lzma_d_cs.S" #include "lzma_d_cs.S"
section LZMA_DEC20 section LZMA_DEC20
bl lzma_dec20
b eof_dec20
lzma_dec20:
#include "lzma_d_cf.S" #include "lzma_d_cf.S"
eof_dec20:
// vi:ts=8:et // vi:ts=8:et
src/stub/src/arch/powerpc/64le/ppc_regs.h
+4 -2
View File
@@ -34,11 +34,13 @@ r29= 29
r30= 30 r30= 30
r31= 31 r31= 31
NBPW= 8 // Number of Bytes Per Word
/* Stack pointer */ /* Stack pointer */
sp= 1 sp= 1
SZ_FRAME= 6*8 + 8*8 // (sp,cr,lr, tmp.xlc,tmp.ld,save.toc) + spill area for a0-a7 SZ_FRAME= 6*NBPW + 8*NBPW // (sp,cr,lr, tmp.xlc,tmp.ld,save.toc) + spill area for a0-a7
F_TOC= SZ_FRAME // where is the fake TOC F_TOC= SZ_FRAME // where is the fake TOC
SZ_FRAME= SZ_FRAME + 2*2*8 // space for 2 [short] TOC entries SZ_FRAME= SZ_FRAME + 2*2*NBPW // space for 2 [short] TOC entries
// http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#REG // http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#REG
// r0 Volatile register used in function prologs // r0 Volatile register used in function prologs
src/stub/src/powerpc64-expand.S
+5 -5
View File
@@ -59,7 +59,7 @@ f_expand: .globl f_expand // f_expand(b_info *, dst, &dstlen)
#define fx_dst a1 #define fx_dst a1
#define fx_dstlen a2 #define fx_dstlen a2
mflr r0 mflr r0
PUSH4 fx_src,fx_dst,fx_dstlen,r0 // params to unfilter and sync_cache PUSH4 fx_src,fx_dst,fx_dstlen,r0 // MATCH_80 params to unfilter and sync_cache
// Input to de-compressor: // Input to de-compressor:
#define xsrc a0 #define xsrc a0
@@ -75,16 +75,16 @@ f_expand: .globl f_expand // f_expand(b_info *, dst, &dstlen)
call decompress call decompress
movr a3,a0 // save retval movr a3,a0 // save retval
POP3 a2,a0,a1 // fx_src,fx_dst,fx_dstlen; keep f_expand.retaddr POP3 a2,a0,a1 // MATCH_80 fx_src,fx_dst,fx_dstlen; keep f_expand.retaddr
ld a1,0(a1) // actual length used by decompressor ld a1,0(a1) // actual length used by decompressor
PUSH3 a0,a1,a3 // params for sync_cache PUSH3 a0,a1,a3 // MATCH_81 params for sync_cache
lbz a3,b_ftid(a2) lbz a3,b_ftid(a2)
lbz a2,b_cto8(a2) lbz a2,b_cto8(a2)
cmpi cr0,a3,0; beq no_unf cmpi cr0,a3,0; beq no_unf
call unfilter call unfilter
no_unf: no_unf:
POP2 a0,a1 // dst, len POP2 a0,a1 // MATCH_81 dst, len
add a1,a1,a0 // lo, hi add a1,a1,a0 // lo, hi
CACHELINE=32 CACHELINE=32
@@ -98,7 +98,7 @@ cfl_nrv:
sync // wait for all memory operations to finish sync // wait for all memory operations to finish
isync // discard prefetched instructions (if any) isync // discard prefetched instructions (if any)
cfl_ret: cfl_ret:
POP2 a0,r0 // retval, retaddr from f_expand POP2 a0,r0 // MATCH_80, MATCH_81 retval, retaddr from f_expand
mtlr r0 mtlr r0
ret ret
// .unreq fx_src // .unreq fx_src
src/stub/src/powerpc64-linux.elf-fold.S
+26 -21
View File
@@ -121,6 +121,27 @@ get_page_mask: .globl get_page_mask
ld r3,PAGE_MASK - 0b(r3) ld r3,PAGE_MASK - 0b(r3)
bctr bctr
Pprotect: .globl Pprotect
mflr r0; bl 0f; 0: mflr r6; mtlr r0; ld r0,PAGE_MASK - 0b(r6)
andc r0,a0,r0 // offset within page
sub a0,a0,r0
add a1,a1,r0
b mprotect
Pmap: .globl Pmap
mflr r0; bl 0f; 0: mflr r6; mtlr r0; ld r0,PAGE_MASK - 0b(r6)
andc r0,a0,r0 // offset within page
sub a0,a0,r0
add a1,a1,r0
b mmap
Punmap: .globl Punmap
mflr r0; bl 0f; 0: mflr r6; mtlr r0; ld r0,PAGE_MASK - 0b(r6)
andc r0,a0,r0 // offset within page
sub a0,a0,r0
add a1,a1,r0
b munmap
fold_begin: fold_begin:
//// teq r0,r0 // debugging //// teq r0,r0 // debugging
mtctr r0 // # words of stuff FIXME mtctr r0 // # words of stuff FIXME
@@ -264,8 +285,7 @@ sz_auxv= 2*NBPW
ld r0,-NBPW(av_hi) // &hatch ld r0,-NBPW(av_hi) // &hatch
mtctr r0 mtctr r0
ld r0,0(av_hi) // entry address std r_exp,SZ_FRAME + (-1+ 31)*NBPW(sp) // hatch: "movr r12,r31" for musl 1.1.16
std r0,SZ_FRAME + (-1+ 31)*NBPW(sp) // hatch: "movr r12,r31" for musl 1.1.16
mr a0,r_ADRU mr a0,r_ADRU
mr a1,r_LENU mr a1,r_LENU
@@ -310,6 +330,7 @@ sz_auxv= 2*NBPW
bctr // goto escape hatch bctr // goto escape hatch
section SYSCALLS section SYSCALLS
li r0,0x999; teq r0,r0 // detect fall-through into this seciion
SYS_exit= 1 SYS_exit= 1
SYS_fork= 2 SYS_fork= 2
@@ -326,11 +347,6 @@ SYS_ftruncate= 93
SYS_mprotect= 125 SYS_mprotect= 125
SYS_memfd_create= 360 SYS_memfd_create= 360
Pmap: .globl Pmap
li r0, 0xfff // ~PAGE_MASK (FIXME: probably use 4th arg)
and r0,a0,r0
sub a0,a0,r0
add a1,a1,r0
mmap: .globl mmap mmap: .globl mmap
clrldi a4,a4,32 // truncate fd to 32 bits; kernel is picky? clrldi a4,a4,32 // truncate fd to 32 bits; kernel is picky?
li 0,SYS_mmap li 0,SYS_mmap
@@ -341,21 +357,10 @@ sysgo:
no_fail: no_fail:
ret ret
Pprotect: .globl Pprotect
mprotect: .globl mprotect
li r0, 0xfff // ~PAGE_MASK (FIXME: probably use 4th arg)
and r0,a0,r0
sub a0,a0,r0
add a1,a1,r0
li r0,SYS_mprotect; 5: b 5f
Punmap: .globl Punmap
li r0, 0xfff // ~PAGE_MASK (FIXME: probably use 4th arg)
and r0,a0,r0
sub a0,a0,r0
add a1,a1,r0
munmap: .globl munmap munmap: .globl munmap
li r0,SYS_munmap; 5: b sysgo li 0,SYS_munmap; 5: b 5f
mprotect: .globl mprotect
li 0,SYS_mprotect; 5: b 5f
memfd_create: .globl memfd_create memfd_create: .globl memfd_create
li r0,SYS_memfd_create; 5: b 5f li r0,SYS_memfd_create; 5: b 5f
ftruncate: .globl ftruncate ftruncate: .globl ftruncate
src/stub/tmp/powerpc64-linux.elf-fold.map
Generated Vendored
+28 -28
View File
@@ -8,14 +8,17 @@ Linker script and memory map
TARGET(elf64-powerpc) TARGET(elf64-powerpc)
.text 0x0000000000000000 0xd6c .text 0x0000000000000000 0xdd4
*(.text) *(.text)
.text 0x0000000000000000 0xd6c tmp/powerpc64-linux.elf-fold.o .text 0x0000000000000000 0xdd4 tmp/powerpc64-linux.elf-fold.o
0x0000000000000014 get_page_mask 0x0000000000000014 get_page_mask
0x0000000000000b48 underlay 0x000000000000002c Pprotect
0x0000000000000bd4 upx_main 0x0000000000000050 Pmap
0x0000000000000074 Punmap
0x0000000000000bb0 underlay
0x0000000000000c3c upx_main
*(.data) *(.data)
.data 0x0000000000000d6c 0x0 tmp/powerpc64-linux.elf-fold.o .data 0x0000000000000dd4 0x0 tmp/powerpc64-linux.elf-fold.o
.data .data
LOAD tmp/powerpc64-linux.elf-fold.o LOAD tmp/powerpc64-linux.elf-fold.o
@@ -24,26 +27,23 @@ OUTPUT(tmp/powerpc64-linux.elf-fold.bin elf64-powerpc)
.bss 0x0000000000000000 0x0 .bss 0x0000000000000000 0x0
.bss 0x0000000000000000 0x0 tmp/powerpc64-linux.elf-fold.o .bss 0x0000000000000000 0x0 tmp/powerpc64-linux.elf-fold.o
SYSCALLS 0x0000000000000000 0x11c SYSCALLS 0x0000000000000000 0xf4
SYSCALLS 0x0000000000000000 0x11c tmp/powerpc64-linux.elf-fold.o SYSCALLS 0x0000000000000000 0xf4 tmp/powerpc64-linux.elf-fold.o
0x0000000000000000 Pmap 0x0000000000000008 mmap
0x0000000000000010 mmap 0x0000000000000020 munmap
0x0000000000000028 Pprotect
0x0000000000000028 mprotect 0x0000000000000028 mprotect
0x0000000000000040 Punmap 0x0000000000000030 memfd_create
0x0000000000000050 munmap 0x0000000000000038 ftruncate
0x0000000000000058 memfd_create 0x0000000000000040 exit
0x0000000000000060 ftruncate 0x0000000000000048 brk
0x0000000000000068 exit 0x0000000000000050 readlink
0x0000000000000070 brk 0x0000000000000058 write
0x0000000000000078 readlink 0x0000000000000060 read
0x0000000000000080 write 0x0000000000000068 open
0x0000000000000088 read 0x0000000000000070 close
0x0000000000000090 open 0x0000000000000078 upxfd_create
0x0000000000000098 close 0x00000000000000d0 memcpy
0x00000000000000a0 upxfd_create 0x00000000000000ec my_bkpt
0x00000000000000f8 memcpy
0x0000000000000114 my_bkpt
.comment 0x0000000000000000 0x33 .comment 0x0000000000000000 0x33
.comment 0x0000000000000000 0x33 tmp/powerpc64-linux.elf-fold.o .comment 0x0000000000000000 0x33 tmp/powerpc64-linux.elf-fold.o
@@ -70,11 +70,11 @@ NRV2D 0x0000000000000000 0x13c
NRV2B 0x0000000000000000 0xf8 NRV2B 0x0000000000000000 0xf8
NRV2B 0x0000000000000000 0xf8 tmp/powerpc64-linux.elf-fold.o NRV2B 0x0000000000000000 0xf8 tmp/powerpc64-linux.elf-fold.o
LZMA_ELF00 0x0000000000000000 0x94 LZMA_ELF00 0x0000000000000000 0xa0
LZMA_ELF00 0x0000000000000000 0x94 tmp/powerpc64-linux.elf-fold.o LZMA_ELF00 0x0000000000000000 0xa0 tmp/powerpc64-linux.elf-fold.o
LZMA_DEC30 0x0000000000000000 0x28 LZMA_DEC30 0x0000000000000000 0x2c
LZMA_DEC30 0x0000000000000000 0x28 tmp/powerpc64-linux.elf-fold.o LZMA_DEC30 0x0000000000000000 0x2c tmp/powerpc64-linux.elf-fold.o
LZMA_DEC10 0x0000000000000000 0xbc0 LZMA_DEC10 0x0000000000000000 0xbc0
LZMA_DEC10 0x0000000000000000 0xbc0 tmp/powerpc64-linux.elf-fold.o LZMA_DEC10 0x0000000000000000 0xbc0 tmp/powerpc64-linux.elf-fold.o
src/stub/tmp/powerpc64le-linux.elf-fold.map
Generated Vendored
+30 -30
View File
@@ -8,14 +8,17 @@ Linker script and memory map
TARGET(elf64-powerpcle) TARGET(elf64-powerpcle)
.text 0x0000000000000000 0xd94 .text 0x0000000000000000 0xdfc
*(.text) *(.text)
.text 0x0000000000000000 0xd94 tmp/powerpc64le-linux.elf-fold.o .text 0x0000000000000000 0xdfc tmp/powerpc64le-linux.elf-fold.o
0x0000000000000014 get_page_mask 0x0000000000000014 get_page_mask
0x0000000000000b70 underlay 0x000000000000002c Pprotect
0x0000000000000bfc upx_main 0x0000000000000050 Pmap
0x0000000000000074 Punmap
0x0000000000000bd8 underlay
0x0000000000000c64 upx_main
*(.data) *(.data)
.data 0x0000000000000d94 0x0 tmp/powerpc64le-linux.elf-fold.o .data 0x0000000000000dfc 0x0 tmp/powerpc64le-linux.elf-fold.o
.data .data
LOAD tmp/powerpc64le-linux.elf-fold.o LOAD tmp/powerpc64le-linux.elf-fold.o
@@ -24,26 +27,23 @@ OUTPUT(tmp/powerpc64le-linux.elf-fold.bin elf64-powerpcle)
.bss 0x0000000000000000 0x0 .bss 0x0000000000000000 0x0
.bss 0x0000000000000000 0x0 tmp/powerpc64le-linux.elf-fold.o .bss 0x0000000000000000 0x0 tmp/powerpc64le-linux.elf-fold.o
SYSCALLS 0x0000000000000000 0x11c SYSCALLS 0x0000000000000000 0xf4
SYSCALLS 0x0000000000000000 0x11c tmp/powerpc64le-linux.elf-fold.o SYSCALLS 0x0000000000000000 0xf4 tmp/powerpc64le-linux.elf-fold.o
0x0000000000000000 Pmap 0x0000000000000008 mmap
0x0000000000000010 mmap 0x0000000000000020 munmap
0x0000000000000028 Pprotect
0x0000000000000028 mprotect 0x0000000000000028 mprotect
0x0000000000000040 Punmap 0x0000000000000030 memfd_create
0x0000000000000050 munmap 0x0000000000000038 ftruncate
0x0000000000000058 memfd_create 0x0000000000000040 exit
0x0000000000000060 ftruncate 0x0000000000000048 brk
0x0000000000000068 exit 0x0000000000000050 readlink
0x0000000000000070 brk 0x0000000000000058 write
0x0000000000000078 readlink 0x0000000000000060 read
0x0000000000000080 write 0x0000000000000068 open
0x0000000000000088 read 0x0000000000000070 close
0x0000000000000090 open 0x0000000000000078 upxfd_create
0x0000000000000098 close 0x00000000000000d0 memcpy
0x00000000000000a0 upxfd_create 0x00000000000000ec my_bkpt
0x00000000000000f8 memcpy
0x0000000000000114 my_bkpt
.comment 0x0000000000000000 0x33 .comment 0x0000000000000000 0x33
.comment 0x0000000000000000 0x33 tmp/powerpc64le-linux.elf-fold.o .comment 0x0000000000000000 0x33 tmp/powerpc64le-linux.elf-fold.o
@@ -70,14 +70,14 @@ NRV2D 0x0000000000000000 0x13c
NRV2B 0x0000000000000000 0xf8 NRV2B 0x0000000000000000 0xf8
NRV2B 0x0000000000000000 0xf8 tmp/powerpc64le-linux.elf-fold.o NRV2B 0x0000000000000000 0xf8 tmp/powerpc64le-linux.elf-fold.o
LZMA_ELF00 0x0000000000000000 0x94 LZMA_ELF00 0x0000000000000000 0xa0
LZMA_ELF00 0x0000000000000000 0x94 tmp/powerpc64le-linux.elf-fold.o LZMA_ELF00 0x0000000000000000 0xa0 tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC30 0x0000000000000000 0x28 LZMA_DEC30 0x0000000000000000 0x2c
LZMA_DEC30 0x0000000000000000 0x28 tmp/powerpc64le-linux.elf-fold.o LZMA_DEC30 0x0000000000000000 0x2c tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC10 0x0000000000000000 0xbb8 LZMA_DEC10 0x0000000000000000 0xbb8
LZMA_DEC10 0x0000000000000000 0xbb8 tmp/powerpc64le-linux.elf-fold.o LZMA_DEC10 0x0000000000000000 0xbb8 tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC20 0x0000000000000000 0xc74 LZMA_DEC20 0x0000000000000000 0xc6c
LZMA_DEC20 0x0000000000000000 0xc74 tmp/powerpc64le-linux.elf-fold.o LZMA_DEC20 0x0000000000000000 0xc6c tmp/powerpc64le-linux.elf-fold.o
src/stub/tmp/powerpc64le-linux.kernel.vmlinux.bin.dump
Generated Vendored
+6 -6
View File
@@ -12,11 +12,11 @@ Idx Name Size VMA LMA File off Algn
7 NRV_TAIL 01c 0 0 043c 2**0 CONTENTS 7 NRV_TAIL 01c 0 0 043c 2**0 CONTENTS
8 CFLUSH 024 0 0 0458 2**0 CONTENTS 8 CFLUSH 024 0 0 0458 2**0 CONTENTS
9 LZMA 0 0 0 047c 2**0 CONTENTS 9 LZMA 0 0 0 047c 2**0 CONTENTS
10 LZMA_ELF00 094 0 0 047c 2**0 CONTENTS 10 LZMA_ELF00 0a0 0 0 047c 2**0 CONTENTS
11 LZMA_DEC30 028 0 0 0510 2**0 CONTENTS 11 LZMA_DEC30 02c 0 0 051c 2**0 CONTENTS
12 LZMA_DEC10 0bb8 0 0 0538 2**0 CONTENTS 12 LZMA_DEC10 0bb8 0 0 0548 2**0 CONTENTS
13 LZMA_DEC20 0c74 0 0 010f0 2**0 CONTENTS 13 LZMA_DEC20 0c6c 0 0 01100 2**0 CONTENTS
14 UPX1HEAD 020 0 0 01d64 2**0 CONTENTS 14 UPX1HEAD 020 0 0 01d6c 2**0 CONTENTS
SYMBOL TABLE: SYMBOL TABLE:
0000000000000000 l d LINUX020 0 LINUX020 0000000000000000 l d LINUX020 0 LINUX020
0000000000000000 l d LINUX030 0 LINUX030 0000000000000000 l d LINUX030 0 LINUX030
@@ -60,4 +60,4 @@ OFFSET TYPE VALUE
RELOCATION RECORDS FOR [LZMA_ELF00]: RELOCATION RECORDS FOR [LZMA_ELF00]:
OFFSET TYPE VALUE OFFSET TYPE VALUE
0000000000000004 R_PPC64_REL14 LZMA_DEC30+0x0000000000000028 0000000000000004 R_PPC64_REL14 LZMA_DEC30+0x000000000000002c