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authorDavid S. Miller <davem@davemloft.net>2018-03-23 11:24:57 -0400
committerDavid S. Miller <davem@davemloft.net>2018-03-23 11:31:58 -0400
commit03fe2debbb2771fb90881e4ce8109b09cf772a5c (patch)
treefbaf8738296b2e9dcba81c6daef2d515b6c4948c /tools/perf/ui/browsers/annotate.c
parent6686c459e1449a3ee5f3fd313b0a559ace7a700e (diff)
parentf36b7534b83357cf52e747905de6d65b4f7c2512 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Fun set of conflict resolutions here... For the mac80211 stuff, these were fortunately just parallel adds. Trivially resolved. In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the function phy_disable_interrupts() earlier in the file, whilst in 'net-next' the phy_error() call from this function was removed. In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the 'rt_table_id' member of rtable collided with a bug fix in 'net' that added a new struct member "rt_mtu_locked" which needs to be copied over here. The mlxsw driver conflict consisted of net-next separating the span code and definitions into separate files, whilst a 'net' bug fix made some changes to that moved code. The mlx5 infiniband conflict resolution was quite non-trivial, the RDMA tree's merge commit was used as a guide here, and here are their notes: ==================== Due to bug fixes found by the syzkaller bot and taken into the for-rc branch after development for the 4.17 merge window had already started being taken into the for-next branch, there were fairly non-trivial merge issues that would need to be resolved between the for-rc branch and the for-next branch. This merge resolves those conflicts and provides a unified base upon which ongoing development for 4.17 can be based. Conflicts: drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f9524 (IB/mlx5: Fix cleanup order on unload) added to for-rc and commit b5ca15ad7e61 (IB/mlx5: Add proper representors support) add as part of the devel cycle both needed to modify the init/de-init functions used by mlx5. To support the new representors, the new functions added by the cleanup patch needed to be made non-static, and the init/de-init list added by the representors patch needed to be modified to match the init/de-init list changes made by the cleanup patch. Updates: drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function prototypes added by representors patch to reflect new function names as changed by cleanup patch drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init stage list to match new order from cleanup patch ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/ui/browsers/annotate.c')
-rw-r--r--tools/perf/ui/browsers/annotate.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 286427975112..fbf927cf775d 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -327,7 +327,32 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
if (!disasm_line__is_valid_jump(cursor, sym))
return;
+ /*
+ * This first was seen with a gcc function, _cpp_lex_token, that
+ * has the usual jumps:
+ *
+ * │1159e6c: ↓ jne 115aa32 <_cpp_lex_token@@Base+0xf92>
+ *
+ * I.e. jumps to a label inside that function (_cpp_lex_token), and
+ * those works, but also this kind:
+ *
+ * │1159e8b: ↓ jne c469be <cpp_named_operator2name@@Base+0xa72>
+ *
+ * I.e. jumps to another function, outside _cpp_lex_token, which
+ * are not being correctly handled generating as a side effect references
+ * to ab->offset[] entries that are set to NULL, so to make this code
+ * more robust, check that here.
+ *
+ * A proper fix for will be put in place, looking at the function
+ * name right after the '<' token and probably treating this like a
+ * 'call' instruction.
+ */
target = ab->offsets[cursor->ops.target.offset];
+ if (target == NULL) {
+ ui_helpline__printf("WARN: jump target inconsistency, press 'o', ab->offsets[%#x] = NULL\n",
+ cursor->ops.target.offset);
+ return;
+ }
bcursor = browser_line(&cursor->al);
btarget = browser_line(target);