Dawn Perchik 954b40bf63 Add support for "source info" and use it to fix MI's -symbol-list-lines.
This patch adds support the command 'source info' as follows:
    (lldb) help source info
         Display source line information (as specified) based on the current executable's
         debug info.
    
    Syntax: source info <cmd-options>
    
    Command Options Usage:
      source info [-c <count>] [-s <shlib-name>] [-f <filename>] [-l <linenum>] [-e <linenum>]
      source info [-c <count>] [-s <shlib-name>] [-n <symbol>]
      source info [-c <count>] [-a <address-expression>]
    
           -a <address-expression> ( --address <address-expression> )
                Lookup the address and display the source information for the corresponding
                file and line.
    
           -c <count> ( --count <count> )
                The number of line entries to display.
    
           -e <linenum> ( --end-line <linenum> )
                The line number at which to stop displaying lines.
    
           -f <filename> ( --file <filename> )
                The file from which to display source.
    
           -l <linenum> ( --line <linenum> )
                The line number at which to start the displaying lines.
    
           -n <symbol> ( --name <symbol> )
                The name of a function whose source to display.
    
           -s <shlib-name> ( --shlib <shlib-name> )
                Look up the source in the given module or shared library (can be specified
                more than once).
For example:
    (lldb) source info --file x.h
    Lines for file x.h in compilation unit x.cpp in `x
    [0x0000000100000d00-0x0000000100000d10): /Users/dawn/tmp/./x.h:10
    [0x0000000100000d10-0x0000000100000d1b): /Users/dawn/tmp/./x.h:10

The new options are used to fix the MI command:
    -symbol-list-lines <file>
which didn't work for header files because it called:
    target modules dump line-table <file>
which only dumps line tables for a compilation unit.

The patch also fixes a bug in the error reporting when no files were supplied to the command. Previously you'd get:
    (lldb) target modules dump line-table
    error:
    Syntax:
    error: no source filenames matched any command arguments
Now you get:
    error: file option must be specified.

Reviewed by: clayborg, jingham, ki.stfu
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D15593

llvm-svn: 256863
2016-01-05 19:51:51 +00:00

81 lines
4.4 KiB
Python

"""
Test lldb-mi -symbol-xxx commands.
"""
from __future__ import print_function
import lldbmi_testcase
from lldbsuite.test.lldbtest import *
class MiSymbolTestCase(lldbmi_testcase.MiTestCaseBase):
mydir = TestBase.compute_mydir(__file__)
@skipIfWindows #llvm.org/pr24452: Get lldb-mi tests working on Windows
@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
def test_lldbmi_symbol_list_lines_file(self):
"""Test that 'lldb-mi --interpreter' works for -symbol-list-lines when file exists."""
self.spawnLldbMi(args = None)
# Load executable
self.runCmd("-file-exec-and-symbols %s" % self.myexe)
self.expect("\^done")
# Run to main
self.runCmd("-break-insert -f main")
self.expect("\^done,bkpt={number=\"1\"")
self.runCmd("-exec-run")
self.expect("\^running")
self.expect("\*stopped,reason=\"breakpoint-hit\"")
# Get address of main and its line
self.runCmd("-data-evaluate-expression main")
self.expect("\^done,value=\"0x[0-9a-f]+ \(a.out`main at main.cpp:[0-9]+\)\"")
addr = int(self.child.after.split("\"")[1].split(" ")[0], 16)
line = line_number('main.cpp', '// FUNC_main')
# Test that -symbol-list-lines works on valid data
self.runCmd("-symbol-list-lines main.cpp")
self.expect("\^done,lines=\[\{pc=\"0x0*%x\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"\d+\"\})+\]" % (addr, line))
# Test that -symbol-list-lines doesn't include lines from other sources
# by checking the first and last line, and making sure the other lines
# are between 30 and 39.
sline = line_number('symbol_list_lines_inline_test2.cpp', '// FUNC_gfunc2')
eline = line_number('symbol_list_lines_inline_test2.cpp', '// END_gfunc2')
self.runCmd("-symbol-list-lines symbol_list_lines_inline_test2.cpp")
self.expect("\^done,lines=\[\{pc=\"0x[0-9a-f]+\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"3\d\"\})*,\{pc=\"0x[0-9a-f]+\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"3\d\"\})*\]" % (sline, eline))
##FIXME: This doesn't work for symbol_list_lines_inline_test.cpp due to clang bug llvm.org/pr24716 (fixed in newer versions of clang)
##sline = line_number('symbol_list_lines_inline_test.cpp', '// FUNC_gfunc')
##eline = line_number('symbol_list_lines_inline_test.cpp', '// STRUCT_s')
##self.runCmd("-symbol-list-lines symbol_list_lines_inline_test.cpp")
##self.expect("\^done,lines=\[\{pc=\"0x[0-9a-f]+\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"3\d\"\})*,\{pc=\"0x[0-9a-f]+\",line=\"%d\"\}\]" % (sline, eline))
# Test that -symbol-list-lines works on header files by checking the first
# and last line, and making sure the other lines are under 29.
sline = line_number('symbol_list_lines_inline_test.h', '// FUNC_ifunc')
eline = line_number('symbol_list_lines_inline_test.h', '// FUNC_mfunc')
self.runCmd("-symbol-list-lines symbol_list_lines_inline_test.h")
self.expect("\^done,lines=\[\{pc=\"0x[0-9a-f]+\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"\d\"\})*(,\{pc=\"0x[0-9a-f]+\",line=\"1\d\"\})*,\{pc=\"0x[0-9a-f]+\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"2\d\"\})*\]" % (sline, eline))
# Test that -symbol-list-lines fails when file doesn't exist
self.runCmd("-symbol-list-lines unknown_file")
self.expect("\^error,message=\"warning: No source filenames matched 'unknown_file'\. error: no source filenames matched any command arguments \"")
# Test that -symbol-list-lines fails when file is specified using relative path
self.runCmd("-symbol-list-lines ./main.cpp")
self.expect("\^error,message=\"warning: No source filenames matched '\./main\.cpp'\. error: no source filenames matched any command arguments \"")
# Test that -symbol-list-lines works when file is specified using absolute path
import os
path = os.path.join(os.getcwd(), "main.cpp")
self.runCmd("-symbol-list-lines \"%s\"" % path)
self.expect("\^done,lines=\[\{pc=\"0x0*%x\",line=\"%d\"\}(,\{pc=\"0x[0-9a-f]+\",line=\"\d+\"\})+\]" % (addr, line))
# Test that -symbol-list-lines fails when file doesn't exist
self.runCmd("-symbol-list-lines unknown_dir/main.cpp")
self.expect("\^error,message=\"warning: No source filenames matched 'unknown_dir/main\.cpp'\. error: no source filenames matched any command arguments \"")