1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
#!/bin/bash
# Copyright (c) 2012 The Native Client Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
set -o nounset
set -o errexit
#@ Various commands to emulate mips32 code using qemu
#@
#@ Note: this script is not meant to be run as
#@ tools/llvm/qemu_tool.sh
#@ but rather as:
#@ toolchain/linux_x86/mips_trusted/qemu-mips32
# From a qemu build based on qemu-0.12.5.tar.gz
readonly SDK_ROOT=$(dirname $0)
readonly QEMU=${SDK_ROOT}/qemu-mips32
readonly QEMU_JAIL=${SDK_ROOT}/sysroot
# NOTE: some useful debugging options for qemu:
# env vars:
# QEMU_STRACE=1
# args:
# -strace
# -d out_asm,in_asm,op,int,exec,cpu
# c.f. cpu_log_items in qemu-XXX/exec.c
readonly QEMU_ARGS=""
readonly QEMU_ARGS_DEBUG="-d in_asm,int,exec,cpu"
readonly QEMU_ARGS_DEBUG_SR="-d in_asm,int,exec,cpu,service_runtime"
######################################################################
# Helpers
######################################################################
Banner() {
echo "######################################################################"
echo $*
echo "######################################################################"
}
Usage() {
egrep "^#@" $0 | cut --bytes=3-
}
CheckPrerequisites () {
if [[ ! -d ${QEMU_JAIL} ]] ; then
echo "ERROR: no proper root-jail directory found"
exit -1
fi
}
Hints() {
echo
echo "traces can be found in /tmp/qemu.log"
echo "for faster execution disable sel_ldr validation"
echo
}
######################################################################
#@
#@ help
#@
#@ print help for all modes
help () {
Usage
}
#@
#@ run
#@
#@ run stuff
run() {
CheckPrerequisites
exec ${QEMU} -L ${QEMU_JAIL} ${QEMU_ARGS} "$@"
}
#@
#@ run_debug
#@
#@ run stuff but also generate trace in /tmp
run_debug() {
Hints
CheckPrerequisites
exec ${QEMU} -L ${QEMU_JAIL} ${QEMU_ARGS} ${QEMU_ARGS_DEBUG} "$@"
}
#@
#@ run_debug_service_runtime
#@
#@ run stuff but also generate trace in /tmp even for service_runtime
run_debug_service_runtime() {
Hints
CheckPrerequisites
exec ${QEMU} -L ${QEMU_JAIL} ${QEMU_ARGS} ${QEMU_ARGS_DEBUG_SR} "$@"
}
######################################################################
if [[ "$0" == *run_under_qemu_mips32 ]] ; then
run "$@"
elif [[ $# -eq 0 ]] ; then
echo "you must specify a mode on the commandline:"
echo
Usage
exit -1
elif [[ "$(type -t $1)" != "function" ]]; then
echo "ERROR: unknown function '$1'." >&2
echo "For help, try:"
echo " $0 help"
exit 1
else
"$@"
fi
|
