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more flexible labels on trace output

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This commit is contained in:
John Reiser 2010-11-18 08:22:36 -08:00
parent 40bb3c2f5e
commit 92f7d16b5e
1 changed files with 5 additions and 14 deletions
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19
src/stub/src/arm-linux.elf-entry.S
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@ -86,7 +86,7 @@ _start: .globl _start
// usually does not matter. Just remember that lr (r14) and pc (r15) are stored
// one word closer to the stack pointer because r13 has been omitted.
stmdb sp!,{TRACE_REGS}; bl trace1
stmdb sp!,{TRACE_REGS}; mov r0,#1; bl trace
#endif /*}*/
adr r12,start_params -4 // &sz_pack2
ldmia r12,{r1,r2, r10,r11} // r1= sz_pack2; r2= ADRM; r10= LENF; r11= CPR0;
@ -112,7 +112,7 @@ D_sz_unc=2*4 // stack displacement to sz_unc
swi __NR_mmap64
#endif /*}*/
#if DEBUG /*{*/
stmdb sp!,{TRACE_REGS}; bl trace2
stmdb sp!,{TRACE_REGS}; mov r0,#2; bl trace
#endif /*}*/
cmn r0,#4096
bcs msg_SELinux
@ -151,29 +151,20 @@ D_stm1=2*4
str r3,[sp,#D_stm1 + D_sz_unc] // sz_unc; lzma needs for EOF
add r3, sp,#D_stm1 + D_sz_unc // &sz_unc
#if DEBUG /*{*/
stmdb sp!,{TRACE_REGS}; bl trace3
stmdb sp!,{TRACE_REGS}; mov r0,#3; bl trace
#endif /*}*/
mov lr,pc; mov pc,r5 // decompress folded code [opcode 'bx' not in v4a]
ldmia sp!,{r1, pc} // discard 5th param; goto unfolded
#if DEBUG /*{*/
trace3:
add r0,r0,#1
trace2:
add r0,r0,#1
trace1:
add r0,r0,#1
trace0:
TRACE_BUFLEN=512
trace_print:
trace:
str lr,[sp,#(-1+ 15)*4] @ return pc; [remember: sp is not stored]
mov r4,sp @ &saved_r0
ldr r1,[sp] @ saved r0
sub sp,sp,#TRACE_BUFLEN
mov r2,sp @ output string
sub r0,r0,r1; mov r1,#'\n'; bl trace_hex @ which trace
mov r1,#'\n'; bl trace_hex @ In: r0 as label
mov r1,#'>'; strb r1,[r2],#1
mov r5,#3 @ rows to print