diff options
Diffstat (limited to 'test/image/test-fit.py')
| -rwxr-xr-x | test/image/test-fit.py | 606 |
1 files changed, 303 insertions, 303 deletions
diff --git a/test/image/test-fit.py b/test/image/test-fit.py index ca38f71a..c83719b 100755 --- a/test/image/test-fit.py +++ b/test/image/test-fit.py @@ -134,310 +134,310 @@ sb save hostfs 0 %(loadables2_addr)x %(loadables2_out)s %(loadables2_size)x reset ''' -def debug_stdout(stdout): - if DEBUG: + def debug_stdout(stdout): + if DEBUG: + print stdout + + def make_fname(leaf): + """Make a temporary filename + + Args: + leaf: Leaf name of file to create (within temporary directory) + Return: + Temporary filename + """ + global base_dir + + return os.path.join(base_dir, leaf) + + def filesize(fname): + """Get the size of a file + + Args: + fname: Filename to check + Return: + Size of file in bytes + """ + return os.stat(fname).st_size + + def read_file(fname): + """Read the contents of a file + + Args: + fname: Filename to read + Returns: + Contents of file as a string + """ + with open(fname, 'r') as fd: + return fd.read() + + def make_dtb(): + """Make a sample .dts file and compile it to a .dtb + + Returns: + Filename of .dtb file created + """ + src = make_fname('u-boot.dts') + dtb = make_fname('u-boot.dtb') + with open(src, 'w') as fd: + print >>fd, base_fdt + command.Output('dtc', src, '-O', 'dtb', '-o', dtb) + return dtb + + def make_its(params): + """Make a sample .its file with parameters embedded + + Args: + params: Dictionary containing parameters to embed in the %() strings + Returns: + Filename of .its file created + """ + its = make_fname('test.its') + with open(its, 'w') as fd: + print >>fd, base_its % params + return its + + def make_fit(mkimage, params): + """Make a sample .fit file ready for loading + + This creates a .its script with the selected parameters and uses mkimage to + turn this into a .fit image. + + Args: + mkimage: Filename of 'mkimage' utility + params: Dictionary containing parameters to embed in the %() strings + Return: + Filename of .fit file created + """ + fit = make_fname('test.fit') + its = make_its(params) + command.Output(mkimage, '-f', its, fit) + with open(make_fname('u-boot.dts'), 'w') as fd: + print >>fd, base_fdt + return fit + + def make_kernel(filename, text): + """Make a sample kernel with test data + + Args: + filename: the name of the file you want to create + Returns: + Full path and filename of the kernel it created + """ + fname = make_fname(filename) + data = '' + for i in range(100): + data += 'this %s %d is unlikely to boot\n' % (text, i) + with open(fname, 'w') as fd: + print >>fd, data + return fname + + def make_ramdisk(filename, text): + """Make a sample ramdisk with test data + + Returns: + Filename of ramdisk created + """ + fname = make_fname(filename) + data = '' + for i in range(100): + data += '%s %d was seldom used in the middle ages\n' % (text, i) + with open(fname, 'w') as fd: + print >>fd, data + return fname + + def find_matching(text, match): + """Find a match in a line of text, and return the unmatched line portion + + This is used to extract a part of a line from some text. The match string + is used to locate the line - we use the first line that contains that + match text. + + Once we find a match, we discard the match string itself from the line, + and return what remains. + + TODO: If this function becomes more generally useful, we could change it + to use regex and return groups. + + Args: + text: Text to check (each line separated by \n) + match: String to search for + Return: + String containing unmatched portion of line + Exceptions: + ValueError: If match is not found + + >>> find_matching('first line:10\\nsecond_line:20', 'first line:') + '10' + >>> find_matching('first line:10\\nsecond_line:20', 'second line') + Traceback (most recent call last): + ... + ValueError: Test aborted + >>> find_matching('first line:10\\nsecond_line:20', 'second_line:') + '20' + """ + for line in text.splitlines(): + pos = line.find(match) + if pos != -1: + return line[:pos] + line[pos + len(match):] + + print "Expected '%s' but not found in output:" + print text + raise ValueError('Test aborted') + + def set_test(name): + """Set the name of the current test and print a message + + Args: + name: Name of test + """ + global test_name + + test_name = name + print name + + def fail(msg, stdout): + """Raise an error with a helpful failure message + + Args: + msg: Message to display + """ print stdout - -def make_fname(leaf): - """Make a temporary filename - - Args: - leaf: Leaf name of file to create (within temporary directory) - Return: - Temporary filename - """ - global base_dir - - return os.path.join(base_dir, leaf) - -def filesize(fname): - """Get the size of a file - - Args: - fname: Filename to check - Return: - Size of file in bytes - """ - return os.stat(fname).st_size - -def read_file(fname): - """Read the contents of a file - - Args: - fname: Filename to read - Returns: - Contents of file as a string - """ - with open(fname, 'r') as fd: - return fd.read() - -def make_dtb(): - """Make a sample .dts file and compile it to a .dtb - - Returns: - Filename of .dtb file created - """ - src = make_fname('u-boot.dts') - dtb = make_fname('u-boot.dtb') - with open(src, 'w') as fd: - print >>fd, base_fdt - command.Output('dtc', src, '-O', 'dtb', '-o', dtb) - return dtb - -def make_its(params): - """Make a sample .its file with parameters embedded - - Args: - params: Dictionary containing parameters to embed in the %() strings - Returns: - Filename of .its file created - """ - its = make_fname('test.its') - with open(its, 'w') as fd: - print >>fd, base_its % params - return its - -def make_fit(mkimage, params): - """Make a sample .fit file ready for loading - - This creates a .its script with the selected parameters and uses mkimage to - turn this into a .fit image. - - Args: - mkimage: Filename of 'mkimage' utility - params: Dictionary containing parameters to embed in the %() strings - Return: - Filename of .fit file created - """ - fit = make_fname('test.fit') - its = make_its(params) - command.Output(mkimage, '-f', its, fit) - with open(make_fname('u-boot.dts'), 'w') as fd: - print >>fd, base_fdt - return fit - -def make_kernel(filename, text): - """Make a sample kernel with test data - - Args: - filename: the name of the file you want to create - Returns: - Full path and filename of the kernel it created - """ - fname = make_fname(filename) - data = '' - for i in range(100): - data += 'this %s %d is unlikely to boot\n' % (text, i) - with open(fname, 'w') as fd: - print >>fd, data - return fname - -def make_ramdisk(filename, text): - """Make a sample ramdisk with test data - - Returns: - Filename of ramdisk created - """ - fname = make_fname(filename) - data = '' - for i in range(100): - data += '%s %d was seldom used in the middle ages\n' % (text, i) - with open(fname, 'w') as fd: - print >>fd, data - return fname - -def find_matching(text, match): - """Find a match in a line of text, and return the unmatched line portion - - This is used to extract a part of a line from some text. The match string - is used to locate the line - we use the first line that contains that - match text. - - Once we find a match, we discard the match string itself from the line, - and return what remains. - - TODO: If this function becomes more generally useful, we could change it - to use regex and return groups. - - Args: - text: Text to check (each line separated by \n) - match: String to search for - Return: - String containing unmatched portion of line - Exceptions: - ValueError: If match is not found - - >>> find_matching('first line:10\\nsecond_line:20', 'first line:') - '10' - >>> find_matching('first line:10\\nsecond_line:20', 'second line') - Traceback (most recent call last): - ... - ValueError: Test aborted - >>> find_matching('first line:10\\nsecond_line:20', 'second_line:') - '20' - """ - for line in text.splitlines(): - pos = line.find(match) - if pos != -1: - return line[:pos] + line[pos + len(match):] - - print "Expected '%s' but not found in output:" - print text - raise ValueError('Test aborted') - -def set_test(name): - """Set the name of the current test and print a message - - Args: - name: Name of test - """ - global test_name - - test_name = name - print name - -def fail(msg, stdout): - """Raise an error with a helpful failure message - - Args: - msg: Message to display - """ - print stdout - raise ValueError("Test '%s' failed: %s" % (test_name, msg)) - -def run_fit_test(mkimage, u_boot): - """Basic sanity check of FIT loading in U-Boot - - TODO: Almost everything: - - hash algorithms - invalid hash/contents should be detected - - signature algorithms - invalid sig/contents should be detected - - compression - - checking that errors are detected like: - - image overwriting - - missing images - - invalid configurations - - incorrect os/arch/type fields - - empty data - - images too large/small - - invalid FDT (e.g. putting a random binary in instead) - - default configuration selection - - bootm command line parameters should have desired effect - - run code coverage to make sure we are testing all the code - """ - global test_name - - # Set up invariant files - control_dtb = make_dtb() - kernel = make_kernel('test-kernel.bin', 'kernel') - ramdisk = make_ramdisk('test-ramdisk.bin', 'ramdisk') - loadables1 = make_kernel('test-loadables1.bin', 'lenrek') - loadables2 = make_ramdisk('test-loadables2.bin', 'ksidmar') - kernel_out = make_fname('kernel-out.bin') - fdt_out = make_fname('fdt-out.dtb') - ramdisk_out = make_fname('ramdisk-out.bin') - loadables1_out = make_fname('loadables1-out.bin') - loadables2_out = make_fname('loadables2-out.bin') - - # Set up basic parameters with default values - params = { - 'fit_addr' : 0x1000, - - 'kernel' : kernel, - 'kernel_out' : kernel_out, - 'kernel_addr' : 0x40000, - 'kernel_size' : filesize(kernel), - - 'fdt_out' : fdt_out, - 'fdt_addr' : 0x80000, - 'fdt_size' : filesize(control_dtb), - 'fdt_load' : '', - - 'ramdisk' : ramdisk, - 'ramdisk_out' : ramdisk_out, - 'ramdisk_addr' : 0xc0000, - 'ramdisk_size' : filesize(ramdisk), - 'ramdisk_load' : '', - 'ramdisk_config' : '', - - 'loadables1' : loadables1, - 'loadables1_out' : loadables1_out, - 'loadables1_addr' : 0x100000, - 'loadables1_size' : filesize(loadables1), - 'loadables1_load' : '', - - 'loadables2' : loadables2, - 'loadables2_out' : loadables2_out, - 'loadables2_addr' : 0x140000, - 'loadables2_size' : filesize(loadables2), - 'loadables2_load' : '', - - 'loadables_config' : '', - } - - # Make a basic FIT and a script to load it - fit = make_fit(mkimage, params) - params['fit'] = fit - cmd = base_script % params - - # First check that we can load a kernel - # We could perhaps reduce duplication with some loss of readability - set_test('Kernel load') - stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) - debug_stdout(stdout) - if read_file(kernel) != read_file(kernel_out): - fail('Kernel not loaded', stdout) - if read_file(control_dtb) == read_file(fdt_out): - fail('FDT loaded but should be ignored', stdout) - if read_file(ramdisk) == read_file(ramdisk_out): - fail('Ramdisk loaded but should not be', stdout) - - # Find out the offset in the FIT where U-Boot has found the FDT - line = find_matching(stdout, 'Booting using the fdt blob at ') - fit_offset = int(line, 16) - params['fit_addr'] - fdt_magic = struct.pack('>L', 0xd00dfeed) - data = read_file(fit) - - # Now find where it actually is in the FIT (skip the first word) - real_fit_offset = data.find(fdt_magic, 4) - if fit_offset != real_fit_offset: - fail('U-Boot loaded FDT from offset %#x, FDT is actually at %#x' % - (fit_offset, real_fit_offset), stdout) - - # Now a kernel and an FDT - set_test('Kernel + FDT load') - params['fdt_load'] = 'load = <%#x>;' % params['fdt_addr'] - fit = make_fit(mkimage, params) - stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) - debug_stdout(stdout) - if read_file(kernel) != read_file(kernel_out): - fail('Kernel not loaded', stdout) - if read_file(control_dtb) != read_file(fdt_out): - fail('FDT not loaded', stdout) - if read_file(ramdisk) == read_file(ramdisk_out): - fail('Ramdisk loaded but should not be', stdout) - - # Try a ramdisk - set_test('Kernel + FDT + Ramdisk load') - params['ramdisk_config'] = 'ramdisk = "ramdisk@1";' - params['ramdisk_load'] = 'load = <%#x>;' % params['ramdisk_addr'] - fit = make_fit(mkimage, params) - stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) - debug_stdout(stdout) - if read_file(ramdisk) != read_file(ramdisk_out): - fail('Ramdisk not loaded', stdout) - - # Configuration with some Loadables - set_test('Kernel + FDT + Ramdisk load + Loadables') - params['loadables_config'] = 'loadables = "kernel@2", "ramdisk@2";' - params['loadables1_load'] = 'load = <%#x>;' % params['loadables1_addr'] - params['loadables2_load'] = 'load = <%#x>;' % params['loadables2_addr'] - fit = make_fit(mkimage, params) - stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) - debug_stdout(stdout) - if read_file(loadables1) != read_file(loadables1_out): - fail('Loadables1 (kernel) not loaded', stdout) - if read_file(loadables2) != read_file(loadables2_out): - fail('Loadables2 (ramdisk) not loaded', stdout) + raise ValueError("Test '%s' failed: %s" % (test_name, msg)) + + def run_fit_test(mkimage, u_boot): + """Basic sanity check of FIT loading in U-Boot + + TODO: Almost everything: + - hash algorithms - invalid hash/contents should be detected + - signature algorithms - invalid sig/contents should be detected + - compression + - checking that errors are detected like: + - image overwriting + - missing images + - invalid configurations + - incorrect os/arch/type fields + - empty data + - images too large/small + - invalid FDT (e.g. putting a random binary in instead) + - default configuration selection + - bootm command line parameters should have desired effect + - run code coverage to make sure we are testing all the code + """ + global test_name + + # Set up invariant files + control_dtb = make_dtb() + kernel = make_kernel('test-kernel.bin', 'kernel') + ramdisk = make_ramdisk('test-ramdisk.bin', 'ramdisk') + loadables1 = make_kernel('test-loadables1.bin', 'lenrek') + loadables2 = make_ramdisk('test-loadables2.bin', 'ksidmar') + kernel_out = make_fname('kernel-out.bin') + fdt_out = make_fname('fdt-out.dtb') + ramdisk_out = make_fname('ramdisk-out.bin') + loadables1_out = make_fname('loadables1-out.bin') + loadables2_out = make_fname('loadables2-out.bin') + + # Set up basic parameters with default values + params = { + 'fit_addr' : 0x1000, + + 'kernel' : kernel, + 'kernel_out' : kernel_out, + 'kernel_addr' : 0x40000, + 'kernel_size' : filesize(kernel), + + 'fdt_out' : fdt_out, + 'fdt_addr' : 0x80000, + 'fdt_size' : filesize(control_dtb), + 'fdt_load' : '', + + 'ramdisk' : ramdisk, + 'ramdisk_out' : ramdisk_out, + 'ramdisk_addr' : 0xc0000, + 'ramdisk_size' : filesize(ramdisk), + 'ramdisk_load' : '', + 'ramdisk_config' : '', + + 'loadables1' : loadables1, + 'loadables1_out' : loadables1_out, + 'loadables1_addr' : 0x100000, + 'loadables1_size' : filesize(loadables1), + 'loadables1_load' : '', + + 'loadables2' : loadables2, + 'loadables2_out' : loadables2_out, + 'loadables2_addr' : 0x140000, + 'loadables2_size' : filesize(loadables2), + 'loadables2_load' : '', + + 'loadables_config' : '', + } + + # Make a basic FIT and a script to load it + fit = make_fit(mkimage, params) + params['fit'] = fit + cmd = base_script % params + + # First check that we can load a kernel + # We could perhaps reduce duplication with some loss of readability + set_test('Kernel load') + stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) + debug_stdout(stdout) + if read_file(kernel) != read_file(kernel_out): + fail('Kernel not loaded', stdout) + if read_file(control_dtb) == read_file(fdt_out): + fail('FDT loaded but should be ignored', stdout) + if read_file(ramdisk) == read_file(ramdisk_out): + fail('Ramdisk loaded but should not be', stdout) + + # Find out the offset in the FIT where U-Boot has found the FDT + line = find_matching(stdout, 'Booting using the fdt blob at ') + fit_offset = int(line, 16) - params['fit_addr'] + fdt_magic = struct.pack('>L', 0xd00dfeed) + data = read_file(fit) + + # Now find where it actually is in the FIT (skip the first word) + real_fit_offset = data.find(fdt_magic, 4) + if fit_offset != real_fit_offset: + fail('U-Boot loaded FDT from offset %#x, FDT is actually at %#x' % + (fit_offset, real_fit_offset), stdout) + + # Now a kernel and an FDT + set_test('Kernel + FDT load') + params['fdt_load'] = 'load = <%#x>;' % params['fdt_addr'] + fit = make_fit(mkimage, params) + stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) + debug_stdout(stdout) + if read_file(kernel) != read_file(kernel_out): + fail('Kernel not loaded', stdout) + if read_file(control_dtb) != read_file(fdt_out): + fail('FDT not loaded', stdout) + if read_file(ramdisk) == read_file(ramdisk_out): + fail('Ramdisk loaded but should not be', stdout) + + # Try a ramdisk + set_test('Kernel + FDT + Ramdisk load') + params['ramdisk_config'] = 'ramdisk = "ramdisk@1";' + params['ramdisk_load'] = 'load = <%#x>;' % params['ramdisk_addr'] + fit = make_fit(mkimage, params) + stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) + debug_stdout(stdout) + if read_file(ramdisk) != read_file(ramdisk_out): + fail('Ramdisk not loaded', stdout) + + # Configuration with some Loadables + set_test('Kernel + FDT + Ramdisk load + Loadables') + params['loadables_config'] = 'loadables = "kernel@2", "ramdisk@2";' + params['loadables1_load'] = 'load = <%#x>;' % params['loadables1_addr'] + params['loadables2_load'] = 'load = <%#x>;' % params['loadables2_addr'] + fit = make_fit(mkimage, params) + stdout = command.Output(u_boot, '-d', control_dtb, '-c', cmd) + debug_stdout(stdout) + if read_file(loadables1) != read_file(loadables1_out): + fail('Loadables1 (kernel) not loaded', stdout) + if read_file(loadables2) != read_file(loadables2_out): + fail('Loadables2 (ramdisk) not loaded', stdout) def run_tests(): """Parse options, run the FIT tests and print the result""" |