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Dylib/ppc32 format works.
This commit is contained in:
John Reiser
5
NEWS
5
NEWS
@ -3,8 +3,9 @@ User visible changes for UPX
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==================================================================
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Changes in 3.05 (01 XXX 2009):
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* new format Dylib/i386 supports shared libraries on Darwin (Mach-o);
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an existing -init function (LC_ROUTINES command) is required.
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* new formats Dylib/i386 and Dylib/ppc32 support shared libraries
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[such as browser plugins] on Darwin (Apple Macintosh). An existing
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-init function (LC_ROUTINES command) is required.
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Changes in 3.04 (27 Apr 2009):
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* new format vmlinuz/armel for Debian NSLU2 (etc.) linux kernel
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@ -70,6 +70,11 @@ SZ_DLINE=128 # size of data cache line in Apple G5
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#include "arch/powerpc/32/lzma_d.S"
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#undef off
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#undef len
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#undef bits
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#undef disp
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section NRV_TAIL
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eof_nrv:
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#define dst0 a4
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@ -121,17 +126,18 @@ sz_b_info= 12
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// register numbers during entry
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#define f_unc 31
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#define f_unf 30
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#define f_uini 30
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#define l_unm 29
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#define a_unm 28
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#define unc 27
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#define cpr 26
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#define unc2 25
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#define cpr2 24
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#define r_unc 27
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#define r_cpr 26
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#define s_unc 25
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#define s_cpr 24
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#define l_unc 23
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#define l_cpr 22
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#define f_uini 21
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#define t_h 20 /* temporary */
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#define t_h 21 /* temporary */
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LINKAREA= 6*4 // (sp,pc,cr, xx,yy.zz) save area per calling convention
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PROT_NONE =0x00
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PROT_READ =0x01
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@ -188,40 +194,46 @@ movup2: # descending copy [base, movup2)
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lbzu r0,-1(a0)
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stbu r0,-1(a1)
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bdnz+ movup2
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lwz f_uini,-4*4+ _start - decompress(f_unc) # offset(user_init_fn)
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subf f_unc,a0,f_unc
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add f_unc,a1,f_unc # relocated decompress
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add f_uini,f_uini,a0
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lwz t0,-4*3+ _start - decompress(f_unc) # offset(b_info)
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add cpr,a1,t0 # &b_info
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add unc,a0,t0 # &b_info
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addi unc,unc,-sz_l_info -sz_p_info
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add r_cpr,a1,t0 # &b_info
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add r_unc,a0,t0 # &b_info
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addi r_unc,r_unc,-sz_l_info -sz_p_info
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// skip compressed Mach headers
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lwz t0,sz_cpr(cpr)
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addi cpr,cpr,sz_b_info
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add cpr,cpr,t0
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lwz t0,sz_cpr(r_cpr)
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addi r_cpr,r_cpr,sz_b_info
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add r_cpr,r_cpr,t0
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dy_uncpr:
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mr cpr2,cpr
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mr unc2,unc
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addi a0,cpr,sz_unc; call get4; beq dy_done; add unc,unc,a0; mr l_unc,a0
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addi a0,cpr,sz_cpr; call get4; add cpr,cpr,a0; mr l_cpr,a0
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addi cpr,cpr,sz_b_info
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mr s_cpr,r_cpr
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mr s_unc,r_unc
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addi a0,r_cpr,sz_unc; call get4; beq dy_done
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add r_unc,r_unc,a0; mr l_unc,a0
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addi a0,r_cpr,sz_cpr; call get4
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add r_cpr,r_cpr,a0; mr l_cpr,a0
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addi r_cpr,r_cpr,sz_b_info
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stwu l_unc,-4(sp)
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stwu l_unc,-8(sp) # keep stack 8-byte aligned
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mtlr f_unc
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addi a0,cpr2,sz_b_info # src
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addi a0,s_cpr,sz_b_info # src
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mr a1,l_cpr
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mr a2,unc2 # dst
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mr a2,s_unc # dst
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mr a3,sp # &l_dst
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lbz a4,b_method(cpr2)
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lbz a4,b_method(s_cpr)
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la sp,-LINKAREA(sp)
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blrl # uncompress
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addi sp,sp,4
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la sp,8+LINKAREA(sp)
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// FIXME: check status
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lbz a3,b_ftid(cpr2); cmpli cr0,a3,0; beq dy_uncpr
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lbz a2,b_cto8(cpr2)
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lwz a1,sz_unc(cpr2)
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mr a0,unc2
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lbz a3,b_ftid(s_cpr); cmpli cr0,a3,0; beq dy_uncpr
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lbz a2,b_cto8(s_cpr)
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lwz a1,sz_unc(s_cpr)
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mr a0,s_unc
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bl unfilter
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b dy_uncpr
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@ -239,15 +251,15 @@ dy_done2:
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mtctr t0
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dy_done3:
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lwzu t0,-4(a0)
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stwu t0,-4(unc2)
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stwu t0,-4(s_unc)
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bdnz+ dy_done3
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mtlr unc2
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mtlr s_unc
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mtctr f_uini # user_init_function
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mr a0,a_unm
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mr a1,l_unm
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li 0,SYS_munmap
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blr # goto relocted dy_done1
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blr # goto relocated dy_done1
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get4:
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lbz t0,3(a0)
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@ -257,8 +269,9 @@ get4:
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mr. a0,t0 # set condition codes
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blr
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unfilter: # FIXME
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ret
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unfilter:
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#include "arch/powerpc/32/bxx.S"
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main:
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b main2
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dy_top:
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@ -167,9 +167,21 @@ unfold:
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mtlr a0 // &continuation
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lwz lsrc,sz_cpr(r30)
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addi src,r30,sz_b_info
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la sp,-6*4(sp) // (sp,cr,pc, xx,yy,zz) save area per calling convention
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la sp,-6*4(sp) // (sp,pc,cr, xx,yy,zz) save area per calling convention
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bctr // goto decomrpess; return to link register (mmap'ed page)
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// Example code at entrypoint of C-language subroutine:
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// mflr r0 # r0= return address
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// stwu sp,-96(sp) # allocate local frame; chain to previous frame
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// stmw r14,24(sp) # save 18 regs r14,r15,...,r31; 4*18 == (96 - 24)
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// stw r0,100(sp) # save return address into caller's frame (100 >= 96)
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// Example code at exit:
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// lwz r0,100(sp) # r0= return address
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// lmw r14,24(sp) # restore 18 regs r14,r15,...,r31
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// mtlr r0 # prepare for indirect jump
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// addi sp,sp,96 # de-allocate local frame
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// blr # goto return address
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main:
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//// teq r0,r0 // debugging
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stwu r1,-32*4(sp) // allocate space (keeping 0 mod 16), save r1
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@ -43,7 +43,7 @@ sz_l_info= 12
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sz_p_info= 12
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OVERHEAD= 2048
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LINKAREA= 6*4 // (sp,cr,pc, xx,yy.zz) save area per calling convention
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LINKAREA= 6*4 // (sp,pc,cr, xx,yy.zz) save area per calling convention
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/* In:
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r31= &decompress; also 8+ (char *)&(#bytes which preceed &-8(r31)
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*/
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@ -14,7 +14,7 @@ Idx Name Size VMA LMA File off Algn Flags
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9 NRV_TAIL 0000001c 00000000 00000000 00001784 2**0 CONTENTS, READONLY
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10 CFLUSH 00000024 00000000 00000000 000017a0 2**0 CONTENTS, READONLY
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11 ELFMAINY 00000000 00000000 00000000 000017c4 2**0 CONTENTS, READONLY
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12 ELFMAINZ 0000019c 00000000 00000000 000017c4 2**0 CONTENTS, READONLY
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12 ELFMAINZ 00000204 00000000 00000000 000017c4 2**0 CONTENTS, READONLY
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SYMBOL TABLE:
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00000000 l d LZMA_DEC30 00000000 LZMA_DEC30
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00000000 l d NRV_TAIL 00000000 NRV_TAIL
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@ -33,7 +33,7 @@ SYMBOL TABLE:
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RELOCATION RECORDS FOR [MACOS000]:
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OFFSET TYPE VALUE
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00000004 R_PPC_REL24 ELFMAINZ+0x00000198
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00000004 R_PPC_REL24 ELFMAINZ+0x00000200
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RELOCATION RECORDS FOR [NRV2E]:
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OFFSET TYPE VALUE
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