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chore(fs_section): add more info to section header error messages

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This commit is contained in:
Marcus Holland-Moritz 2025-04-21 10:58:23 +02:00
parent d3cbb57a02
commit 5fb5ebf71b
1 changed files with 7 additions and 3 deletions
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10
src/internal/fs_section.cpp
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@ -47,7 +47,9 @@ template <typename T>
void read_section_header_common(T& header, size_t& start, mmif const& mm, void read_section_header_common(T& header, size_t& start, mmif const& mm,
size_t offset) { size_t offset) {
if (offset + sizeof(T) > mm.size()) { if (offset + sizeof(T) > mm.size()) {
DWARFS_THROW(runtime_error, "truncated section header"); DWARFS_THROW(runtime_error,
fmt::format("truncated section header: {} + {} > {}", offset,
sizeof(T), mm.size()));
} }
::memcpy(&header, mm.as<void>(offset), sizeof(T)); ::memcpy(&header, mm.as<void>(offset), sizeof(T));
@ -57,11 +59,13 @@ void read_section_header_common(T& header, size_t& start, mmif const& mm,
auto end = offset + header.length; auto end = offset + header.length;
if (end < offset) { if (end < offset) {
DWARFS_THROW(runtime_error, "offset/length overflow"); DWARFS_THROW(runtime_error,
fmt::format("offset/length overflow: {} < {}", end, offset));
} }
if (end > mm.size()) { if (end > mm.size()) {
DWARFS_THROW(runtime_error, "truncated section data"); DWARFS_THROW(runtime_error, fmt::format("truncated section data: {} > {}",
end, mm.size()));
} }
start = offset; start = offset;