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Add an initial version of lldb-disasm.py script whose purpose is to iterate through
all the symbols for an executable image and to issue the lldb 'disassemble' command on each symbol. The initial version just dumps the symbol table. llvm-svn: 128428
This commit is contained in:
Johnny Chen
parent
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commit
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94
lldb/utils/test/README-lldb-disasm
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94
lldb/utils/test/README-lldb-disasm
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This README describes a sample invocation of lldb-disasm.py whose purpose is to test
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the lldb 'disassemble' command.
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This is for the initial checkin of lldb-disasm.py which only reads an executable image and
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dumps the symbol table from the imgae and its dependent libraries. The output was cut off
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since it is too large.
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da0603a-dhcp191:9131529 johnny$ /Volumes/data/lldb/svn/trunk/utils/test/lldb-disasm.py -C 'platform create remote-ios' -e /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/libSystem.B.dylib
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lldb commands: ['platform create remote-ios']
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lldb options: None
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executable: /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/libSystem.B.dylib
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sys.path: ['/Volumes/data/lldb/svn/trunk/utils/test', '/Volumes/data/lldb/svn/trunk/build/Debug/LLDB.framework/Resources/Python', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload', '/Library/Python/2.6/site-packages', '/AppleInternal/Library/Python/2.6/site-packages', '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC', '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode', '/Volumes/data/lldb/svn/trunk/utils/test/../../test/pexpect-2.4', '/Volumes/data/lldb/svn/trunk/test']
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/Volumes/data/lldb/svn/trunk/test/lldbutil.py:80: SyntaxWarning: import * only allowed at module level
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def int_to_bytearray(val, bytesize):
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/Volumes/data/lldb/svn/trunk/test/lldbutil.py:105: SyntaxWarning: import * only allowed at module level
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def bytearray_to_int(bytes, bytesize):
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run command: platform create remote-ios
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output: Platform: remote-ios
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Not connected to a remote platform.
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SDKROOT: "/Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3 (8F190)"
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run command: file /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/libSystem.B.dylib
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output: Current executable set to '/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/libSystem.B.dylib' (armv7).
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run command: image dump symtab
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output: Dumping symbol table for 18 modules.
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Symtab, file = /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/libSystem.B.dylib, num_symbols = 851:
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Debug symbol
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|Synthetic symbol
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||Externally Visible
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Index UserID DSX Type File Address/Value Load Address Size Flags Name
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------- ------ --- ------------ ------------------ ------------------ ------------------ ---------- ----------------------------------
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[ 0] 0 Code 0x0000000000001420 0x0000000000000000 0x000e0008 libSystem_initializer
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[ 1] 1 Code 0x00000000000014c4 0x0000000000000000 0x001e0008 __keymgr_initializer
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[ 2] 2 Code 0x00000000000014fc 0x0000000000000000 0x000e0008 dwarf2_unwind_dyld_add_image_hook
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[ 3] 3 Code 0x0000000000001564 0x0000000000000000 0x000e0008 get_or_create_key_element
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[ 4] 4 Code 0x0000000000001684 0x0000000000000000 0x000e0008 unlock_node
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[ 5] 5 Code 0x0000000000001930 0x0000000000000000 0x000e0000 RsqrtTable
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[ 6] 6 Code 0x0000000000001c30 0x0000000000000000 0x000e0000 acosf_crossover
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[ 7] 7 Code 0x0000000000001c34 0x0000000000000000 0x000e0000 acosf_mid_poly
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[ 8] 8 Code 0x0000000000001c48 0x0000000000000000 0x000e0000 Pi2_Q30
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[ 9] 9 Code 0x0000000000001c4c 0x0000000000000000 0x000e0000 Pi_Q30
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[ 10] 10 Code 0x0000000000001c78 0x0000000000000000 0x000e0000 acosf_approx
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[ 11] 11 Code 0x0000000000001cec 0x0000000000000000 0x000e0000 acosf_pos_tail_poly
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[ 12] 12 Code 0x0000000000001d00 0x0000000000000000 0x000e0000 acosf_tail
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[ 13] 13 Code 0x0000000000001dfc 0x0000000000000000 0x000e0000 acosf_normalize
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[ 14] 14 Code 0x0000000000001e10 0x0000000000000000 0x000e0000 acosf_round
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[ 15] 15 Code 0x0000000000001e28 0x0000000000000000 0x000e0000 acosf_encode
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[ 16] 16 Code 0x0000000000001e30 0x0000000000000000 0x000e0000 acosf_done
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[ 17] 17 Code 0x0000000000001e38 0x0000000000000000 0x000e0000 acosf_special
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[ 18] 18 Code 0x0000000000001e68 0x0000000000000000 0x000e0000 acosf_small
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[ 19] 19 Code 0x0000000000001e9c 0x0000000000000000 0x000e0000 acosf_very_small
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[ 20] 20 Code 0x0000000000001eb8 0x0000000000000000 0x000e0000 Pif
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[ 21] 21 Code 0x000000000000220c 0x0000000000000000 0x000e0000 RsqrtTable
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[ 22] 22 Code 0x000000000000250c 0x0000000000000000 0x000e0000 asinf_crossover
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[ 23] 23 Code 0x0000000000002510 0x0000000000000000 0x000e0000 asinf_mid_poly
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[ 24] 24 Code 0x0000000000002524 0x0000000000000000 0x000e0000 Pi2_Q30
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[ 25] 25 Code 0x0000000000002550 0x0000000000000000 0x000e0000 asinf_approx
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[ 26] 26 Code 0x00000000000025e4 0x0000000000000000 0x000e0000 asinf_tail_poly
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[ 27] 27 Code 0x0000000000002600 0x0000000000000000 0x000e0000 asinf_tail
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[ 28] 28 Code 0x00000000000026e0 0x0000000000000000 0x000e0000 asinf_normalize
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[ 29] 29 Code 0x00000000000026f4 0x0000000000000000 0x000e0000 asinf_round
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[ 30] 30 Code 0x000000000000270c 0x0000000000000000 0x000e0000 asinf_encode
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[ 31] 31 Code 0x0000000000002718 0x0000000000000000 0x000e0000 asinf_done
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[ 32] 32 Code 0x0000000000002720 0x0000000000000000 0x000e0000 asinf_special
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[ 33] 33 Code 0x0000000000002754 0x0000000000000000 0x000e0000 asinf_small
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[ 34] 34 Code 0x0000000000002784 0x0000000000000000 0x000e0000 Pi2f
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[ 35] 35 Code 0x0000000000005774 0x0000000000000000 0x000e0008 rem_pio2
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[ 36] 36 Code 0x00000000000076c4 0x0000000000000000 0x000e0008 __kernel_rem_pio2
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[ 37] 37 Code 0x0000000000008c90 0x0000000000000000 0x000e0008 __kernel_tan
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[ 38] 38 Code 0x0000000000008ef0 0x0000000000000000 0x000e0008 lgammaApprox
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[ 39] 39 Code 0x000000000000b3d4 0x0000000000000000 0x000e0000 powf_not_special
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[ 40] 40 Code 0x000000000000b3dc 0x0000000000000000 0x000e0000 powf_ylgx
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[ 41] 41 Code 0x000000000000b438 0x0000000000000000 0x000e0000 powf_done
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[ 42] 42 Code 0x000000000000b43c 0x0000000000000000 0x000e0000 powf_special_y
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[ 43] 43 Code 0x000000000000b4a8 0x0000000000000000 0x000e0000 powf_special_x
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[ 44] 44 Code 0x000000000000b4cc 0x0000000000000000 0x000e0000 powf_mzero_minf
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[ 45] 45 Code 0x000000000000b54c 0x0000000000000000 0x000e0000 powf_y_odd
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[ 46] 46 Code 0x000000000000b57c 0x0000000000000000 0x000e0000 powf_y_nonint
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[ 47] 47 Code 0x000000000000b588 0x0000000000000000 0x000e0000 powf_y_even
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[ 48] 48 Code 0x000000000000b7a8 0x0000000000000000 0x000e0000 powf_log2_reduction
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[ 49] 49 Code 0x000000000000b7a8 0x0000000000000000 0x000e0000 powf_log2
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[ 50] 50 Code 0x000000000000b814 0x0000000000000000 0x000e0000 powf_log2_approx
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[ 51] 51 Code 0x000000000000b88c 0x0000000000000000 0x000e0000 powf_log2_synthesis
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[ 52] 52 Code 0x000000000000b960 0x0000000000000000 0x000e0000 powf_log2_exactPowerOfTwo
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[ 53] 53 Code 0x000000000000b980 0x0000000000000000 0x000e0000 powf_log2_near1
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[ 54] 54 Code 0x000000000000b9ec 0x0000000000000000 0x000e0000 powf_log2_synthesis_near1
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[ 55] 55 Code 0x000000000000ba04 0x0000000000000000 0x000e0000 Q32_minimax
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[ 56] 56 Code 0x000000000000ba10 0x0000000000000000 0x000e0000 iexp2_lut
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[ 57] 57 Code 0x000000000000ba94 0x0000000000000000 0x000e0000 powf_exp2
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[ 58] 58 Code 0x000000000000bb18 0x0000000000000000 0x000e0000 powf_exp2_exact_int
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[ 59] 59 Code 0x000000000000bb24 0x0000000000000000 0x000e0000 powf_exp2_big
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[ 60] 60 Code 0x000000000000bb74 0x0000000000000000 0x000e0000 powf_exp2_overflow
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151
lldb/utils/test/lldb-disasm.py
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151
lldb/utils/test/lldb-disasm.py
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@ -0,0 +1,151 @@
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#!/usr/bin/env python
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"""
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Run lldb to disassemble all the available functions for an executable image.
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"""
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import os
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import sys
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from optparse import OptionParser
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def setupSysPath():
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"""
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Add LLDB.framework/Resources/Python to the search paths for modules.
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"""
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# Get the directory containing the current script.
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scriptPath = sys.path[0]
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if not scriptPath.endswith(os.path.join('utils', 'test')):
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print "This script expects to reside in lldb's utils/test directory."
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sys.exit(-1)
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# This is our base name component.
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base = os.path.abspath(os.path.join(scriptPath, os.pardir, os.pardir))
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# This is for the goodies in the test directory under base.
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sys.path.append(os.path.join(base,'test'))
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# These are for xcode build directories.
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xcode3_build_dir = ['build']
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xcode4_build_dir = ['build', 'lldb', 'Build', 'Products']
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dbg = ['Debug']
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rel = ['Release']
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bai = ['BuildAndIntegration']
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python_resource_dir = ['LLDB.framework', 'Resources', 'Python']
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dbgPath = os.path.join(base, *(xcode3_build_dir + dbg + python_resource_dir))
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dbgPath2 = os.path.join(base, *(xcode4_build_dir + dbg + python_resource_dir))
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relPath = os.path.join(base, *(xcode3_build_dir + rel + python_resource_dir))
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relPath2 = os.path.join(base, *(xcode4_build_dir + rel + python_resource_dir))
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baiPath = os.path.join(base, *(xcode3_build_dir + bai + python_resource_dir))
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baiPath2 = os.path.join(base, *(xcode4_build_dir + bai + python_resource_dir))
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lldbPath = None
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if os.path.isfile(os.path.join(dbgPath, 'lldb.py')):
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lldbPath = dbgPath
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elif os.path.isfile(os.path.join(dbgPath2, 'lldb.py')):
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lldbPath = dbgPath2
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elif os.path.isfile(os.path.join(relPath, 'lldb.py')):
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lldbPath = relPath
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elif os.path.isfile(os.path.join(relPath2, 'lldb.py')):
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lldbPath = relPath2
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elif os.path.isfile(os.path.join(baiPath, 'lldb.py')):
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lldbPath = baiPath
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elif os.path.isfile(os.path.join(baiPath2, 'lldb.py')):
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lldbPath = baiPath2
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if not lldbPath:
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print 'This script requires lldb.py to be in either ' + dbgPath + ',',
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print relPath + ', or ' + baiPath
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sys.exit(-1)
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# This is to locate the lldb.py module. Insert it right after sys.path[0].
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sys.path[1:1] = [lldbPath]
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print "sys.path:", sys.path
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def run_command(ci, cmd, res):
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print "run command:", cmd
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ci.HandleCommand(cmd, res)
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if res.Succeeded():
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print "output:", res.GetOutput()
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else:
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print "run command failed!"
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print "error:", res.GetError()
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def do_lldb_disassembly(lldb_commands, lldb_options, exe):
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import lldb, lldbutil, atexit
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# Create the debugger instance now.
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dbg = lldb.SBDebugger.Create()
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if not dbg.IsValid():
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raise Exception('Invalid debugger instance')
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# Register an exit callback.
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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# We want our debugger to be synchronous.
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dbg.SetAsync(False)
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# Get the command interpreter from the debugger.
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ci = dbg.GetCommandInterpreter()
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if not ci:
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raise Exception('Could not get the command interpreter')
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# And the associated result object.
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res = lldb.SBCommandReturnObject()
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# See if there any extra command(s) to execute before we issue the file command.
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for cmd in lldb_commands:
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run_command(ci, cmd, res)
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# Now issue the file command.
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run_command(ci, 'file %s' % exe, res)
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# Send the 'image dump symtab' command.
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run_command(ci, 'image dump symtab', res)
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def main():
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# This is to set up the Python path to include the pexpect-2.4 dir.
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# Remember to update this when/if things change.
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scriptPath = sys.path[0]
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sys.path.append(os.path.join(scriptPath, os.pardir, os.pardir, 'test', 'pexpect-2.4'))
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parser = OptionParser(usage="""\
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Run lldb to disassemble all the available functions for an executable image.
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Usage: %prog [options]
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""")
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parser.add_option('-C', '--lldb-command',
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type='string', action='append', metavar='COMMAND',
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default=[], dest='lldb_commands',
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help='Command(s) lldb executes after starting up (can be empty)')
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parser.add_option('-O', '--lldb-options',
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type='string', action='store',
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dest='lldb_options',
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help="""The options passed to 'lldb' command if specified.""")
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parser.add_option('-e', '--executable',
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type='string', action='store',
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dest='executable',
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help="""The executable to do disassembly on.""")
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opts, args = parser.parse_args()
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lldb_commands = opts.lldb_commands
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lldb_options = opts.lldb_options
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if not opts.executable:
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parser.print_help()
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sys.exit(1)
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executable = opts.executable
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# We have parsed the options.
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print "lldb commands:", lldb_commands
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print "lldb options:", lldb_options
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print "executable:", executable
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setupSysPath()
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do_lldb_disassembly(lldb_commands, lldb_options, executable)
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if __name__ == '__main__':
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main()
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