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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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
misc/testsuite/upx_testsuite_1-expected_sha256sums.sh generated
View File

@ -66,7 +66,7 @@ e7bfe2365ce83121ef757f8be47aa158da537e8992c3b2082e08a0fc4512708b *mips-linux.elf
fcbd8b4709ee324eb772e5de45a85bac5b8e560460fb1d50d0958f2ce568be97 *mipsel-linux.elf/upx-3.95
16b0df199ae2055fb98ddf8cf77a0ee2ea3fa9a386e9cc6dd940647532130c2f *powerpc-linux.elf/upx-3.91
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="\
84328c2e1cf60ede2d14f4146f6894a5f88bfd027ffccdcad411a05f4b11c6c4 *amd64-linux.elf/upx-3.91
@ -89,7 +89,7 @@ ee769694227b4f2e6195852ce6cbd899fc0c3308f978dcb85c9fc768d21ce37f *mipsel-linux.e
73c3d6cee83136438b884e8dd3af19c9cb8298401e295bf0428616c75589090b *mipsel-linux.elf/upx-3.95
d05786b4b729f13a9b325322c2ea41ca7db6f60fee9f82c58874a25ee7eca086 *powerpc-linux.elf/upx-3.91
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="\
24f1c2077016095f0cdebcef1546777e39fd1a76b39ce0ef9be2f11bb5e4a49f *amd64-linux.elf/upx-3.91
@ -112,7 +112,7 @@ d18aa30ba7a8bc500517b8dcdd16976806c88c5a49e721f8a54d216fb7f7b230 *mipsel-linux.e
fa3be8f93006a88c7ad3d9fd13f600c4f69745859eb76f7eab317a5b87d256ea *mipsel-linux.elf/upx-3.95
1eaa5a0165d9d7cd6c0dd1f6c223f60cb5c213ff8f74af78764b075a7202f334 *powerpc-linux.elf/upx-3.91
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="\
5e382e35684d069e54b1c3e06065049f604c6c63a326008fc5a8b07dfe580a09 *amd64-linux.elf/upx-3.91
@ -135,7 +135,7 @@ bfbcb18537081e3393c6d144101675bfe935192390405c3072449fbfa3b38069 *mipsel-linux.e
c8b1cbc45bc1c34f481bdf535bb21ea62d2a6a7ce8bcfb1460cb8c5de85e3c43 *mipsel-linux.elf/upx-3.95
d2ee5c94812125bcc8970f42dd363ebe0f0fd9b3bdfe8973214e956978bc1dad *powerpc-linux.elf/upx-3.91
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="\
352c29b1409142882f937699929b7b5dc06bba8838f5bf3ca1395bc5ae182f48 *amd64-linux.elf/upx-3.91
@ -158,7 +158,7 @@ c30fa4adac1d1b0838e452e7f6591d433352ed719d32b161e6383828927e9b13 *mipsel-linux.e
b5ece56b5e674b8ba1a6bdd488ad41495d52a8a9e594bd84651e1d7f393d5e23 *mipsel-linux.elf/upx-3.95
e3825daa7fb8d509590c1db347a8403dbd899da453fb43850ebf1d31abbe0cba *powerpc-linux.elf/upx-3.91
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="\
095796a3c7949b8f7776a87983fe74f70e61dd47254bd3f1834234b11ae4f6bf *amd64-linux.elf/upx-3.91
@ -181,7 +181,7 @@ c4cf58843905b62b0fe50266b926f46041a7329ca1f8237a5743fc54a6daed68 *mipsel-linux.e
558047321b8771a5445bd56741334a954f1d722d9e70764ca13a1075ad139378 *mipsel-linux.elf/upx-3.95
4a57ba95ab87a2710d2e3f93a344b3f56cae08043c5b3f2ce55965a59d13762e *powerpc-linux.elf/upx-3.91
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="\
9c0cbd5abc56d506be45a411613883079adbf3e5ff7f5652fd6cc2808bc4212a *amd64-linux.elf/upx-3.91
@ -204,6 +204,6 @@ eb01b6f27798690115cabb88314551579da509455232bbaa3276eddc25106d0d *i386-win32.pe/
b34e08324b5f078b1f7408afcf72f7b6fb7f2a25e76332459aa30c020124f04c *mipsel-linux.elf/upx-3.95
1c0fde4880d16710cba3d2d285d8af01aff2b50bd8f0203afcd3a338a8a0b0b1 *powerpc-linux.elf/upx-3.91
60f7c8153f3e0ae5d793645b88b6323630fd1b8caf40511a26836835aa99228d *powerpc-linux.elf/upx-3.95
ee0faaac156f1111862566023e1b5d662bbe8c256d027504976d74bb148b8c66 *powerpc64le-linux.elf/upx-3.95
d6ff4a6d2f0d4edd68dd8ab7c1c219a5d7820d53ccd512cc1eb6837b58b237d4 *powerpc64le-linux.elf/upx-3.95
"
########## end .sha256sums.recreate

36
src/p_lx_elf.cpp
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@ -8333,39 +8333,43 @@ Elf32_Sym const *PackLinuxElf32::elf_lookup(char const *name) const
throwCantPack("bad gnu_shift %#x", gnu_shift);
}
if ((file_size + file_image) <= (void const *)hasharr) {
char msg[80]; snprintf(msg, sizeof(msg),
"bad n_bucket %#x\n", n_bucket);
throwCantPack(msg);
throwCantPack("bad n_bucket %#x\n", n_bucket);
}
if (!n_bitmask
|| (unsigned)(file_size - ((char const *)bitmask - (char const *)(void const *)file_image))
<= sizeof(unsigned)*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 hbit1 = 037& h;
unsigned const hbit2 = 037& (h>>gnu_shift);
unsigned const w = get_te32(&bitmask[(n_bitmask -1) & (h>>5)]);
if (1& (w>>hbit1) & (w>>hbit2)) {
unsigned bucket = get_te32(&buckets[h % n_bucket]);
if (n_bucket <= bucket) {
throwCantPack("bad DT_GNU_HASH n_bucket{%#x} <= buckets[%d]{%#x}\n",
n_bucket, h % n_bucket, bucket);
unsigned const hhead = get_te32(&buckets[h % n_bucket]);
if (n_bucket <= (hhead - symbias)) {
throwCantPack("bad DT_GNU_HASH n_bucket{%#x} <= buckets[%d]{%#x} - symbias{%#x}\n",
n_bucket, h % n_bucket, hhead, symbias);
}
if (0!=bucket) {
Elf32_Sym const *dsp = &dynsym[bucket];
unsigned const *hp = &hasharr[bucket - symbias];
do if (0==((h ^ get_te32(hp))>>1)) {
unsigned st_name = get_te32(&dsp->st_name);
if (hhead) {
Elf32_Sym const *dsp = &dynsym[hhead];
unsigned const *hp = &hasharr[hhead - symbias];
unsigned k;
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);
if (0==strcmp(name, p)) {
return dsp;
}
} while (++dsp,
((char const *)hp < (char const *)(file_size + file_image))
&& 0==(1u& get_te32(hp++)));
}
} while (++dsp, ++hp, 0==(1u& k));
}
}
}

6
src/stub/Makefile
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@ -1688,7 +1688,7 @@ tmp/powerpc64-darwin.macho-main.o : $(srcdir)/src/$$T.c
powerpc64le-linux.elf%.h : tc_list = powerpc64le-linux.elf default
powerpc64le-linux.elf%.h : tc_bfdname = elf64-powerpcle
tc.powerpc64le-linux.elf.gcc = powerpc64-linux-gcc-4.9.2 -m64 -mlittle-endian -DBIG_ENDIAN=0 -nostdinc -MMD -MT $@
tc.powerpc64le-linux.elf.gcc = powerpc64-linux-gcc-4.9.2 -m64 -mlittle-endian -DBIG_ENDIAN=0 -DDAISY_CHAIN=1 -nostdinc -MMD -MT $@
tc.powerpc64le-linux.elf.gcc += -fno-exceptions -fno-asynchronous-unwind-tables -fno-stack-protector
tc.powerpc64le-linux.elf.gcc += -Wall -W -Wcast-align -Wcast-qual -Wstrict-prototypes -Wwrite-strings -Werror
@ -1746,7 +1746,7 @@ tmp/powerpc64le-linux.elf-main2.s: $(srcdir)/src/$$T.c $(srcdir)/src/amd64-linux
powerpc64-linux.elf%.h : tc_list = powerpc64-linux.elf default
powerpc64-linux.elf%.h : tc_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 += -mno-longcall -mno-toc
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:
# .quad .L7L.auxv_up,.TOC.@tocbase
# .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-3.S \
sed -e '/\.section\s*"\.toc","aw"/d' \

2446
src/stub/powerpc64-linux.elf-fold.h generated
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File diff suppressed because it is too large Load Diff

2432
src/stub/powerpc64le-linux.elf-fold.h generated
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File diff suppressed because it is too large Load Diff

1123
src/stub/powerpc64le-linux.kernel.vmlinux.h generated
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File diff suppressed because it is too large Load Diff

2
src/stub/src/amd64-linux.elf-main2.c
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@ -119,8 +119,6 @@ extern void my_bkpt(void *, ...);
static int dprintf(char const *fmt, ...); // forward
#endif /*}*/
extern void my_bkpt(void *, ...);
/*************************************************************************
// configuration section
**************************************************************************/

54
src/stub/src/arch/powerpc/64le/lzma_d-common.S
View File

@ -29,9 +29,9 @@
#include "ppc_regs.h"
// 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_PSAV= 8*8 // for spilling a0-a7 if necessary
retaddr = 2*8 // lr === pc
SZ_LINK= 6*NBPW // (sp,cr,lr, xx,yy,zz) save area per calling convention
SZ_PSAV= 8*NBPW // for spilling a0-a7 if necessary
retaddr = 2*NBPW // lr === pc
#define section .section
@ -56,8 +56,7 @@ retaddr = 2*8 // lr === pc
#define M_LZMA 14
cmplwi cr0,meth,M_LZMA
bne cr0,not_lzma
stdu sp,-(SZ_LINK+SZ_PSAV)(sp) // FR_10 defend against callers who omit the linkage area
mflr r0
mr a7,sp // sp of caller
//Prepare for call to:
//LzmaDecode( // from lzmaSDK/C/7zip/Compress/LZMA_C/LzmaDecode.h
@ -73,7 +72,6 @@ retaddr = 2*8 // lr === pc
la a1,2(src) // inp
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)
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
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}
mr a3,sp
add sp,sp,a0 // FR_11 allocate
clrrdi sp,sp,6 // (1<<6) byte align (round down)
li r0,0
mr a0,a3 // old sp
mr a0,a7 // old sp
stw r0,0(a6) // outSizeProcessed= 0; XXX 32 BITS
1:
stdu r0,-8(a0) // clear CLzmaDecoderState on stack
cmpld cr0,sp,a0 // compare logical ==> compare unsigned
blt cr0,1b
std a3,0(sp) // FR_11 chain
lbz r0,-1(a1) // second byte, replaces LzmaDecodeProperties()
la a3,4*8 + BIG_ENDIAN*4(sp) // &inSizeProcessed XXX 32 BITS
la a0,5*8 (sp) // &CLzmaDecoderState
la a3,4*NBPW + BIG_ENDIAN*4(sp) // &inSizeProcessed XXX 32 BITS
la a0,5*NBPW (sp) // &CLzmaDecoderState
stb t2,2(a0) // pos_bits
std a4,2*8(sp) // outp
std a6,3*8(sp) // &outSizeProcessed
std a4,2*NBPW(sp) // outp
std a6,3*NBPW(sp) // &outSizeProcessed
rldicl t1,r0,64-4,4 // t1= (r0>>4)==lit_pos_bits
clrldi r0,r0,64-4 // r0= (0xf& r0)==lit_context_bits
stb t1,1(a0) // lit_pos_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
la sp,SZ_LINK+SZ_PSAV(sp) // FR_12 un-defend
ld a2,3*8(sp) // &outSizeProcessed
ld a4,2*8(sp) // &lowest byte stored
/*1*/ la sp,SZ_LINK+SZ_PSAV(sp) // FR_12 un-defend
ld a2,3*NBPW(sp) // &outSizeProcessed
ld a4,2*NBPW(sp) // &lowest byte stored
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
ld r0,retaddr(sp)
addi a2,a2,-1 // &highest byte stored
ld sp,0(sp) // FR_10 un-allocate and un-chain
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

6
src/stub/src/arch/powerpc/64le/lzma_d.S
View File

@ -2,16 +2,12 @@
// can contain endian-dependent code in the "64" and "64le" directories,
// but otherwise use lzma_d-common.S
#include "lzma_d-common.S"
#include "../64le/lzma_d-common.S"
section LZMA_DEC10
#include "lzma_d_cs.S"
section LZMA_DEC20
bl lzma_dec20
b eof_dec20
lzma_dec20:
#include "lzma_d_cf.S"
eof_dec20:
// vi:ts=8:et

6
src/stub/src/arch/powerpc/64le/ppc_regs.h
View File

@ -34,11 +34,13 @@ r29= 29
r30= 30
r31= 31
NBPW= 8 // Number of Bytes Per Word
/* Stack pointer */
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
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
// r0 Volatile register used in function prologs

10
src/stub/src/powerpc64-expand.S
View File

@ -59,7 +59,7 @@ f_expand: .globl f_expand // f_expand(b_info *, dst, &dstlen)
#define fx_dst a1
#define fx_dstlen a2
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:
#define xsrc a0
@ -75,16 +75,16 @@ f_expand: .globl f_expand // f_expand(b_info *, dst, &dstlen)
call decompress
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
PUSH3 a0,a1,a3 // params for sync_cache
PUSH3 a0,a1,a3 // MATCH_81 params for sync_cache
lbz a3,b_ftid(a2)
lbz a2,b_cto8(a2)
cmpi cr0,a3,0; beq no_unf
call unfilter
no_unf:
POP2 a0,a1 // dst, len
POP2 a0,a1 // MATCH_81 dst, len
add a1,a1,a0 // lo, hi
CACHELINE=32
@ -98,7 +98,7 @@ cfl_nrv:
sync // wait for all memory operations to finish
isync // discard prefetched instructions (if any)
cfl_ret:
POP2 a0,r0 // retval, retaddr from f_expand
POP2 a0,r0 // MATCH_80, MATCH_81 retval, retaddr from f_expand
mtlr r0
ret
// .unreq fx_src

47
src/stub/src/powerpc64-linux.elf-fold.S
View File

@ -121,6 +121,27 @@ get_page_mask: .globl get_page_mask
ld r3,PAGE_MASK - 0b(r3)
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:
//// teq r0,r0 // debugging
mtctr r0 // # words of stuff FIXME
@ -264,8 +285,7 @@ sz_auxv= 2*NBPW
ld r0,-NBPW(av_hi) // &hatch
mtctr r0
ld r0,0(av_hi) // entry address
std r0,SZ_FRAME + (-1+ 31)*NBPW(sp) // hatch: "movr r12,r31" for musl 1.1.16
std r_exp,SZ_FRAME + (-1+ 31)*NBPW(sp) // hatch: "movr r12,r31" for musl 1.1.16
mr a0,r_ADRU
mr a1,r_LENU
@ -310,6 +330,7 @@ sz_auxv= 2*NBPW
bctr // goto escape hatch
section SYSCALLS
li r0,0x999; teq r0,r0 // detect fall-through into this seciion
SYS_exit= 1
SYS_fork= 2
@ -326,11 +347,6 @@ SYS_ftruncate= 93
SYS_mprotect= 125
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
clrldi a4,a4,32 // truncate fd to 32 bits; kernel is picky?
li 0,SYS_mmap
@ -341,21 +357,10 @@ sysgo:
no_fail:
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
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
li r0,SYS_memfd_create; 5: b 5f
ftruncate: .globl ftruncate

56
src/stub/tmp/powerpc64-linux.elf-fold.map generated vendored
View File

@ -8,14 +8,17 @@ Linker script and memory map
TARGET(elf64-powerpc)
.text 0x0000000000000000 0xd6c
.text 0x0000000000000000 0xdd4
*(.text)
.text 0x0000000000000000 0xd6c tmp/powerpc64-linux.elf-fold.o
.text 0x0000000000000000 0xdd4 tmp/powerpc64-linux.elf-fold.o
0x0000000000000014 get_page_mask
0x0000000000000b48 underlay
0x0000000000000bd4 upx_main
0x000000000000002c Pprotect
0x0000000000000050 Pmap
0x0000000000000074 Punmap
0x0000000000000bb0 underlay
0x0000000000000c3c upx_main
*(.data)
.data 0x0000000000000d6c 0x0 tmp/powerpc64-linux.elf-fold.o
.data 0x0000000000000dd4 0x0 tmp/powerpc64-linux.elf-fold.o
.data
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 tmp/powerpc64-linux.elf-fold.o
SYSCALLS 0x0000000000000000 0x11c
SYSCALLS 0x0000000000000000 0x11c tmp/powerpc64-linux.elf-fold.o
0x0000000000000000 Pmap
0x0000000000000010 mmap
0x0000000000000028 Pprotect
SYSCALLS 0x0000000000000000 0xf4
SYSCALLS 0x0000000000000000 0xf4 tmp/powerpc64-linux.elf-fold.o
0x0000000000000008 mmap
0x0000000000000020 munmap
0x0000000000000028 mprotect
0x0000000000000040 Punmap
0x0000000000000050 munmap
0x0000000000000058 memfd_create
0x0000000000000060 ftruncate
0x0000000000000068 exit
0x0000000000000070 brk
0x0000000000000078 readlink
0x0000000000000080 write
0x0000000000000088 read
0x0000000000000090 open
0x0000000000000098 close
0x00000000000000a0 upxfd_create
0x00000000000000f8 memcpy
0x0000000000000114 my_bkpt
0x0000000000000030 memfd_create
0x0000000000000038 ftruncate
0x0000000000000040 exit
0x0000000000000048 brk
0x0000000000000050 readlink
0x0000000000000058 write
0x0000000000000060 read
0x0000000000000068 open
0x0000000000000070 close
0x0000000000000078 upxfd_create
0x00000000000000d0 memcpy
0x00000000000000ec my_bkpt
.comment 0x0000000000000000 0x33
.comment 0x0000000000000000 0x33 tmp/powerpc64-linux.elf-fold.o
@ -70,11 +70,11 @@ NRV2D 0x0000000000000000 0x13c
NRV2B 0x0000000000000000 0xf8
NRV2B 0x0000000000000000 0xf8 tmp/powerpc64-linux.elf-fold.o
LZMA_ELF00 0x0000000000000000 0x94
LZMA_ELF00 0x0000000000000000 0x94 tmp/powerpc64-linux.elf-fold.o
LZMA_ELF00 0x0000000000000000 0xa0
LZMA_ELF00 0x0000000000000000 0xa0 tmp/powerpc64-linux.elf-fold.o
LZMA_DEC30 0x0000000000000000 0x28
LZMA_DEC30 0x0000000000000000 0x28 tmp/powerpc64-linux.elf-fold.o
LZMA_DEC30 0x0000000000000000 0x2c
LZMA_DEC30 0x0000000000000000 0x2c tmp/powerpc64-linux.elf-fold.o
LZMA_DEC10 0x0000000000000000 0xbc0
LZMA_DEC10 0x0000000000000000 0xbc0 tmp/powerpc64-linux.elf-fold.o

60
src/stub/tmp/powerpc64le-linux.elf-fold.map generated vendored
View File

@ -8,14 +8,17 @@ Linker script and memory map
TARGET(elf64-powerpcle)
.text 0x0000000000000000 0xd94
.text 0x0000000000000000 0xdfc
*(.text)
.text 0x0000000000000000 0xd94 tmp/powerpc64le-linux.elf-fold.o
.text 0x0000000000000000 0xdfc tmp/powerpc64le-linux.elf-fold.o
0x0000000000000014 get_page_mask
0x0000000000000b70 underlay
0x0000000000000bfc upx_main
0x000000000000002c Pprotect
0x0000000000000050 Pmap
0x0000000000000074 Punmap
0x0000000000000bd8 underlay
0x0000000000000c64 upx_main
*(.data)
.data 0x0000000000000d94 0x0 tmp/powerpc64le-linux.elf-fold.o
.data 0x0000000000000dfc 0x0 tmp/powerpc64le-linux.elf-fold.o
.data
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 tmp/powerpc64le-linux.elf-fold.o
SYSCALLS 0x0000000000000000 0x11c
SYSCALLS 0x0000000000000000 0x11c tmp/powerpc64le-linux.elf-fold.o
0x0000000000000000 Pmap
0x0000000000000010 mmap
0x0000000000000028 Pprotect
SYSCALLS 0x0000000000000000 0xf4
SYSCALLS 0x0000000000000000 0xf4 tmp/powerpc64le-linux.elf-fold.o
0x0000000000000008 mmap
0x0000000000000020 munmap
0x0000000000000028 mprotect
0x0000000000000040 Punmap
0x0000000000000050 munmap
0x0000000000000058 memfd_create
0x0000000000000060 ftruncate
0x0000000000000068 exit
0x0000000000000070 brk
0x0000000000000078 readlink
0x0000000000000080 write
0x0000000000000088 read
0x0000000000000090 open
0x0000000000000098 close
0x00000000000000a0 upxfd_create
0x00000000000000f8 memcpy
0x0000000000000114 my_bkpt
0x0000000000000030 memfd_create
0x0000000000000038 ftruncate
0x0000000000000040 exit
0x0000000000000048 brk
0x0000000000000050 readlink
0x0000000000000058 write
0x0000000000000060 read
0x0000000000000068 open
0x0000000000000070 close
0x0000000000000078 upxfd_create
0x00000000000000d0 memcpy
0x00000000000000ec my_bkpt
.comment 0x0000000000000000 0x33
.comment 0x0000000000000000 0x33 tmp/powerpc64le-linux.elf-fold.o
@ -70,14 +70,14 @@ NRV2D 0x0000000000000000 0x13c
NRV2B 0x0000000000000000 0xf8
NRV2B 0x0000000000000000 0xf8 tmp/powerpc64le-linux.elf-fold.o
LZMA_ELF00 0x0000000000000000 0x94
LZMA_ELF00 0x0000000000000000 0x94 tmp/powerpc64le-linux.elf-fold.o
LZMA_ELF00 0x0000000000000000 0xa0
LZMA_ELF00 0x0000000000000000 0xa0 tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC30 0x0000000000000000 0x28
LZMA_DEC30 0x0000000000000000 0x28 tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC30 0x0000000000000000 0x2c
LZMA_DEC30 0x0000000000000000 0x2c tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC10 0x0000000000000000 0xbb8
LZMA_DEC10 0x0000000000000000 0xbb8 tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC20 0x0000000000000000 0xc74
LZMA_DEC20 0x0000000000000000 0xc74 tmp/powerpc64le-linux.elf-fold.o
LZMA_DEC20 0x0000000000000000 0xc6c
LZMA_DEC20 0x0000000000000000 0xc6c tmp/powerpc64le-linux.elf-fold.o

12
src/stub/tmp/powerpc64le-linux.kernel.vmlinux.bin.dump generated vendored
View File

@ -12,11 +12,11 @@ Idx Name Size VMA LMA File off Algn
7 NRV_TAIL 01c 0 0 043c 2**0 CONTENTS
8 CFLUSH 024 0 0 0458 2**0 CONTENTS
9 LZMA 0 0 0 047c 2**0 CONTENTS
10 LZMA_ELF00 094 0 0 047c 2**0 CONTENTS
11 LZMA_DEC30 028 0 0 0510 2**0 CONTENTS
12 LZMA_DEC10 0bb8 0 0 0538 2**0 CONTENTS
13 LZMA_DEC20 0c74 0 0 010f0 2**0 CONTENTS
14 UPX1HEAD 020 0 0 01d64 2**0 CONTENTS
10 LZMA_ELF00 0a0 0 0 047c 2**0 CONTENTS
11 LZMA_DEC30 02c 0 0 051c 2**0 CONTENTS
12 LZMA_DEC10 0bb8 0 0 0548 2**0 CONTENTS
13 LZMA_DEC20 0c6c 0 0 01100 2**0 CONTENTS
14 UPX1HEAD 020 0 0 01d6c 2**0 CONTENTS
SYMBOL TABLE:
0000000000000000 l d LINUX020 0 LINUX020
0000000000000000 l d LINUX030 0 LINUX030
@ -60,4 +60,4 @@ OFFSET TYPE VALUE
RELOCATION RECORDS FOR [LZMA_ELF00]:
OFFSET TYPE VALUE
0000000000000004 R_PPC64_REL14 LZMA_DEC30+0x0000000000000028
0000000000000004 R_PPC64_REL14 LZMA_DEC30+0x000000000000002c