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| author | Mark Wielaard <mark@klomp.org> | 2018-05-24 15:20:25 +0200 |
|---|---|---|
| committer | Mark Wielaard <mark@klomp.org> | 2018-05-24 15:20:25 +0200 |
| commit | c2d14cc492aa7fd28740d5789fede64ce81a063b (patch) | |
| tree | 8dc6ce6af3e6720848debfabb4cde5ad2e1361b4 /libdw/dwarf_ranges.c | |
| parent | 144b73c49acf3ed894e4635aedb9b0d1208ade2e (diff) | |
| download | elfutils-c2d14cc492aa7fd28740d5789fede64ce81a063b.tar.gz | |
libdw: Initialize ranges_base, add invalid DWARF test and fix expected output.
We never initialized the CU ranges_base, which meant we didn't actually
calculate it correctly. This caused bad ranges on some DIEs. The expected
output in the testcase was wrong. We also crashed on invalid dwarf.
Signed-off-by: Mark Wielaard <mark@klomp.org>
Diffstat (limited to 'libdw/dwarf_ranges.c')
| -rw-r--r-- | libdw/dwarf_ranges.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libdw/dwarf_ranges.c b/libdw/dwarf_ranges.c index b0450cf3..52a61eea 100644 --- a/libdw/dwarf_ranges.c +++ b/libdw/dwarf_ranges.c @@ -123,6 +123,12 @@ dwarf_ranges (Dwarf_Die *die, ptrdiff_t offset, Dwarf_Addr *basep, /* We have to look for a noncontiguous range. */ size_t secidx = IDX_debug_ranges; Dwarf_CU *cu = die->cu; + if (cu == NULL) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return -1; + } + const Elf_Data *d = cu->dbg->sectiondata[secidx]; if (d == NULL && cu->unit_type == DW_UT_split_compile) { |