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elf: Rename load_segments() and module failure

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Rename this function to make it clear that it only reads loadable
segments. Also update the error for missing module to better match the
message emitted by Python.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Suggested-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
This commit is contained in:
Simon Glass 2022-03-05 20:18:57 -07:00
parent 0ded4d434d
commit 17b4ffc56f
2 changed files with 12 additions and 12 deletions
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6
tools/binman/elf.py
View File

@ -149,7 +149,7 @@ def GetSymbolFileOffset(fname, patterns):
value: Hex value of symbol
"""
if not ELF_TOOLS:
raise ValueError('Python elftools package is not available')
raise ValueError("Python: No module named 'elftools'")
syms = {}
with open(fname, 'rb') as fd:
@ -415,7 +415,7 @@ def UpdateFile(infile, outfile, start_sym, end_sym, insert):
tools.write_file(outfile, newdata)
tout.info('Written to offset %#x' % syms[start_sym].offset)
def read_segments(data):
def read_loadable_segments(data):
"""Read segments from an ELF file
Args:
@ -433,7 +433,7 @@ def read_segments(data):
ValueError: elftools is not available
"""
if not ELF_TOOLS:
raise ValueError('Python elftools package is not available')
raise ValueError("Python: No module named 'elftools'")
with io.BytesIO(data) as inf:
try:
elf = ELFFile(inf)

18
tools/binman/elf_test.py
View File

@ -243,7 +243,7 @@ class TestElf(unittest.TestCase):
fname = self.ElfTestFile('embed_data')
with self.assertRaises(ValueError) as e:
elf.GetSymbolFileOffset(fname, ['embed_start', 'embed_end'])
self.assertIn('Python elftools package is not available',
self.assertIn("Python: No module named 'elftools'",
str(e.exception))
finally:
elf.ELF_TOOLS = old_val
@ -257,31 +257,31 @@ class TestElf(unittest.TestCase):
offset = elf.GetSymbolFileOffset(fname, ['missing_sym'])
self.assertEqual({}, offset)
def test_read_segments(self):
"""Test for read_segments()"""
def test_read_loadable_segments(self):
"""Test for read_loadable_segments()"""
if not elf.ELF_TOOLS:
self.skipTest('Python elftools not available')
fname = self.ElfTestFile('embed_data')
segments, entry = elf.read_segments(tools.read_file(fname))
segments, entry = elf.read_loadable_segments(tools.read_file(fname))
def test_read_segments_fail(self):
"""Test for read_segments() without elftools"""
"""Test for read_loadable_segments() without elftools"""
try:
old_val = elf.ELF_TOOLS
elf.ELF_TOOLS = False
fname = self.ElfTestFile('embed_data')
with self.assertRaises(ValueError) as e:
elf.read_segments(tools.read_file(fname))
self.assertIn('Python elftools package is not available',
elf.read_loadable_segments(tools.read_file(fname))
self.assertIn("Python: No module named 'elftools'",
str(e.exception))
finally:
elf.ELF_TOOLS = old_val
def test_read_segments_bad_data(self):
"""Test for read_segments() with an invalid ELF file"""
"""Test for read_loadable_segments() with an invalid ELF file"""
fname = self.ElfTestFile('embed_data')
with self.assertRaises(ValueError) as e:
elf.read_segments(tools.get_bytes(100, 100))
elf.read_loadable_segments(tools.get_bytes(100, 100))
self.assertIn('Magic number does not match', str(e.exception))
def test_get_file_offset(self):