From: Omar Sandoval
dwarf_next_lines has two loops over CUs: one from the CU after the given
CU to the end, and one from the first CU up to _but not including_ the
given CU. This means that the given CU is never checked.
This is unlikely to matter in practice since CUs usually correspond 1:1
wi
From: Omar Sandoval
Meta uses DWARF package files for our large, statically-linked C++
applications. Some of our largest applications have more than 4GB in
.debug_info.dwo, but the section offsets in .debug_cu_index and
.debug_tu_index are 32 bits; see the discussion here [1]. We
implemented a
From: Omar Sandoval
The final piece of DWARF package file support is that offsets have to be
interpreted relative to the section offset from the package index.
.debug_abbrev.dwo is already covered, so sprinkle around calls to
dwarf_cu_dwp_section_info for the remaining sections: .debug_line.dwo,
From: Omar Sandoval
Calling dwarf_decl_file on a split DWARF DIE fails this assertion:
dwarf_decl_file.c:72: dwarf_decl_file: Assertion `cu->files != NULL &&
cu->files != (void *) -1l' failed.
This is because dwarf_decl_file calls dwarf_getsrclines to populate
cu->files. For normal units, c
From: Omar Sandoval
Hi,
This is version 3 of my patch series adding support for DWARF package
files to libdw and the elfutils tools. Version 2 is here [1], and
version 1 is [here]. This version fixes handling of line number
information.
Patches 1 and 2 are new in this version. Patch 1 fixes dwa
On Sat, Feb 24, 2024 at 03:00:04PM +0100, Mark Wielaard wrote:
> Hi Omar,
>
> On Thu, Feb 22, 2024 at 05:03:44PM -0800, Omar Sandoval wrote:
> > On Thu, Feb 22, 2024 at 04:53:19PM -0800, Omar Sandoval wrote:
> > > On Fri, Feb 16, 2024 at 04:00:47PM +0100, Mark Wielaard wrote:
> > > > Don't we also
__libdw_getdieranges builds an aranges list by iterating over CUs and
recording each address range.
__libdw_getdieranges provides an alternative to relying on .debug_aranges
for address ranges, since this section might be absent or incomplete.
https://sourceware.org/bugzilla/show_bug.cgi?id=22288
