SHA256
1
0
forked from pool/dwz
dwz/dwz-call-reorder_dups-asap.patch
Martin Pluskal ef157f6ece Accepting request 875368 from home:tomdevries:branches:devel:tools:compiler-dwz-pre-release-0.14
- Change Version tag from 0.14rc1 to 0.14~rc1
  * Rename dwz-0.14rc1.tar.xz to dwz-0.14~rc1.tar.xz
- Fix testsuite build fail on riscv64:
  * dwz-testsuite-fix-pr25109.sh-on-riscv64.patch
- Update reported dwz version
  * dwz-update-version.patch
- DWZ 0.14-rc1 (master branch commit 0d391bf) update:
  * Dropped patches:
    - dwz-fix-assertion-off-cu_size-in-recompute_abbrevs.patch
    - dwz-fix-die-no-multifile-propagation.patch
    - dwz-fix-refd-NULL-assertion-in-write_die.patch
    - dwz-fix-reference-from-pu-to-cu.patch
    - dwz-fix-segfault-in-die_cu.patch
    - dwz-testsuite-adjust-pr24468-sh-test-case-for-readelf-with-follow-links.patch
    - dwz-testsuite-detect-when-devel-ignore-size-sh-is-unsupported.patch
    - dwz-testsuite-fix-partial-unit-grepping-in-pr24468-sh.patch
    - dwz-update-version-copyright-message.patch
  * Added patches:
    - dwz-add-assert-checking-that-cu-is-not-referenced-from-pu.patch
    - dwz-call-reorder_dups-asap.patch
    - dwz-document-experimental-status-of-odr.patch
    - dwz-enable-odr-by-default.patch
    - dwz-fix-reference-of-pu-to-cu-for-odr.patch
    - dwz-precompute-partitions.patch
    - dwz-update-suse-copyright-years.patch
  * Added BuildRequires gcc-c++

OBS-URL: https://build.opensuse.org/request/show/875368
OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/dwz?expand=0&rev=34
2021-02-26 14:20:13 +00:00

65 lines
2.0 KiB
Diff

Call reorder_dups ASAP
Currently, we call reorder_dups just before partial unit creation, and only for
DIEs that will be copied.
This approach causes a problem with reachable DIE propagation (which is done
in partition_dups after phase 1): when a dup-chain that needs to be reordered
(starts with ODR_DECL but also contains ODR_DEF) is marked as reachable during
this propagation, propagation will stop at the ODR_DECL, while it should
continue at the first ODR_DEF instead.
Fix this by calling reorder_dups ASAP, just after computing the partitions.
The problem can be detected using this assert:
...
@@ -12563,6 +12563,8 @@ write_die
{
dw_cu_ref refdcu = die_cu (refd);
value = refd->u.p2.die_new_offset;
+ assert (IMPLIES (cu->cu_kind == CU_PU,
+ die_cu (refd)->cu_kind == CU_PU));
assert (value && refdcu->cu_kind != CU_ALT);
if (t->attr[j].form == DW_FORM_ref_addr)
{
...
2020-01-25 Tom de Vries <tdevries@suse.de>
PR dwz/25424
* dwz.c (partition_dups_1): Move calling of reorder_dups ...
(partition_dups): ... here.
---
dwz.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/dwz.c b/dwz.c
index f435428..9172011 100644
--- a/dwz.c
+++ b/dwz.c
@@ -8134,13 +8134,6 @@ partition_dups_1 (dw_die_ref *arr, size_t nr_partitions, size_t *partitions,
&& (ignore_size || orig_size > new_size));
if (force)
{
- if (odr_active_p && odr_mode != ODR_BASIC)
- for (k = i; k < j; k++)
- {
- if (second_phase && !arr[k]->die_ref_seen)
- continue;
- arr[k] = reorder_dups (arr[k]);
- }
dw_die_ref die, *diep;
dw_cu_ref refcu = die_cu (arr[i]);
dw_cu_ref partial_cu = pool_alloc (dw_cu, sizeof (struct dw_cu));
@@ -8474,6 +8467,9 @@ partition_dups (void)
if (stats_p)
stats->part_cnt += nr_partitions;
+ if (odr_active_p && odr_mode != ODR_BASIC)
+ for (i = 0; i < vec_size; ++i)
+ arr[i] = reorder_dups (arr[i]);
if (partition_dups_1 (arr, nr_partitions, partitions, &first_partial_cu,
&last_partial_cu, false))
{