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The DIE (attribute) data might come from either the main .debug_info
section or for DWARFv4 from a separate .debug_types section. Or in
case of the fake_loc_cu from the .debug_loc section and in the case
of macros from the .debug_macinfo or .debug_macro section.
We didn't handle the last two "fake" CU cases correctly when sanity
checking offsets in __libdw_read_address and __libdw_read_offset.
Add an explicit sec_idx field to struct Dwarf_CU that is always set
to the actual section that the data came from.
Change-Id: I83260622b55d3778a38cd46427dba158d186c51e
Reviewed-by: Christian Kandeler <[email protected]>
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Since we banned old style function definitions GCC is able to diagnose
function definitions that don't match the function declaration:
elf32_getehdr.c:78: error: conflicting types for ‘__elf64_getehdr_wrlock’
libelfP.h:498: note: previous declaration of ‘__elf64_getehdr_wrlock’
This happens on i386 because there internal functions are marked with:
# define internal_function __attribute__ ((regparm (3), stdcall))
Make sure all internal function declarations and definitions are marked
with internal_function.
Signed-off-by: Mark Wielaard <[email protected]>
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Signed-off-by: Chih-Hung Hsieh <[email protected]>
Signed-off-by: Mark Wielaard <[email protected]>
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All attributes now have a reference to a (fake) CU that has startp and
endp set to the data section where the form data comes from. Use that
for bounds checking in __libdw_form_val_len and dwarf_formblock to make
sure data read doesn't overflow any data section. Remove libdwP.h cu_data
and use cu startp and endp directly where appropriate.
Signed-off-by: Mark Wielaard <[email protected]>
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An invalid or trucated debug info/type section could cause the cu endp
to point beyond the end of section data.
Signed-off-by: Mark Wielaard <[email protected]>
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Rather than looking up section data every time, we can simply save the
range of each CU as pointers in Dwarf_CU.
Signed-off-by: Josh Stone <[email protected]>
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When dwarf_formref_die can't find a sig8 in the hash, it walks
__libdw_intern_next_unit, and was then adding those to the hash.
However, if dwarf_offdie_types is called earlier, which also uses that
next_unit, then they are missed from the hash (and never revisited).
This patch makes __libdw_intern_next_unit do the sig8 hash insert, so no
type unit is ever missed.
Signed-off-by: Josh Stone <[email protected]>
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* Change name from "Red Hat elfutils" to "elfutils".
* Update license of standalone tools and test from GPLv2 to GPLv3+.
* Change license of libraries from GPLv2+exception to GPLv2/LGPLv3+.
* Add Developer Certificate of Origin based contributor policy.
top-level:
- COPYING: Upgraded from GPLv2 to GPLv3.
- CONTRIBUTING, COPYING-GPLv2, COPYING-LGPLv3: New files.
- NEWS: Added note about new contribution and license policy.
- Makefile.am: Updated to GPLv3, added new files to EXTRA_DIST.
- configure.ac: Update to GPLv3, changed AC_INIT name to 'elfutils'.
backends, lib, libasm, libcpu, libdw, libdwfl, libebl, libelf:
- All files updated to GPLv2/LGPLv3+. Except some very small files
(<5 lines) which didn't have any headers at all before, the linker
.maps files and the libcpu/defs files which only contain data and
libelf/elf.h which comes from glibc and is under LGPLv2+.
config:
- elfutils.spec.in: Add new License: headers and new %doc files.
- Update all license headers to GPLv2/LGPLv3+ for files used by libs.
src, tests:
- All files updated to GPLv3+. Except for the test bz2 data files, the
linker maps and script files and some very small files (<5 lines)
that don't have any headers.
Signed-off-by: Richard Fontana <[email protected]>
Signed-off-by: Mark Wielaard <[email protected]>
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* libdw_findcu.c (findcu_cb): Move earlier.
(__libdw_intern_next_unit): Add new CU to search tree here...
(__libdw_findcu): ... not here.
* typeiter.c: New file.
* run-typeiter.sh: New file.
* testfile59.bz2: New file.
* Makefile.am (noinst_PROGRAMS): Add typeiter.
(TESTS): Add run-typeiter.sh.
(EXTRA_DIST): Add run-typeiter.sh, testfile59.bz2.
(typeiter_LDADD): New variable.
If you call dwarf_next_unit to iterate over .debug_types, then call
dwarf_offdie_types, you can see a failure if some earlier call
happened to call __libdw_intern_next_unit via dwarf_formref_die.
What happens is that __libdw_intern_next_unit updates the Dwarf's
next_tu_offset, but does not add the TU to the TU search tree. So,
the call to dwarf_offdie_types does not find the TU in the tree, and
will not search any more, causing a failure.
This fix changes __libdw_intern_next_unit to add the TU to the search
tree, rather than relying on __libdw_findcu to do it.
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* linux-kernel-modules.c (report_kernel_archive): Reorder the kernel
module to appear first.
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4f8fc821345feef58624f0aa5b470d4827577d8c)
to branch 'com.redhat.elfutils' (head 76e26cb54695fd3b21ee8fb5be3036bd68200633)
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