* [committed] Add --devel-dump-edges and --devel-verify-edges
@ 2019-01-01 0:00 Tom de Vries
0 siblings, 0 replies; only message in thread
From: Tom de Vries @ 2019-01-01 0:00 UTC (permalink / raw)
To: dwz, jakub
Hi,
Add dump_edges and call it from create_import_tree if --devel-dump-edges is
specified.
Enable verify_edges by default and call it from create_import_tree if
--devel-verify-edges is specified.
Committed to trunk.
Thanks,
- Tom
Add --devel-dump-edges and --devel-verify-edges
2019-11-17 Tom de Vries <tdevries@suse.de>
PR dwz/25166
* dwz.c (verify_edges_p, dump_edges_p): New var.
(dump_edges_1, dump_edges): New function.
(verify_edges_1, verify_edges): Enable by default.
(create_import_tree): Call dump_edges and verify_edges.
(dwz_options): Add entries for --devel-dump-edges and
--devel-verify-edges.
---
dwz.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 43 insertions(+), 2 deletions(-)
diff --git a/dwz.c b/dwz.c
index 9c0a73e..acf0541 100644
--- a/dwz.c
+++ b/dwz.c
@@ -159,6 +159,8 @@ static int dump_dies_p;
#endif
static int unoptimized_multifile;
static int save_temps = 0;
+static int verify_edges_p = 0;
+static int dump_edges_p = 0;
typedef struct
{
@@ -6022,7 +6024,33 @@ remove_import_edges (struct import_edge **ep, struct import_cu **cus,
return efirst;
}
-#ifdef DEBUG_VERIFY_EDGES
+static void
+dump_edges_1 (struct import_cu *ipu)
+{
+ fprintf (stderr, "idx: %u\n", ipu->idx);
+ fprintf (stderr, "cu: 0x%x\n", ipu->cu->cu_offset);
+ struct import_edge *e1;
+ for (e1 = ipu->incoming; e1; e1 = e1->next)
+ fprintf (stderr, "incoming: %u\n", e1->icu->idx);
+ for (e1 = ipu->outgoing; e1; e1 = e1->next)
+ fprintf (stderr, "outgoing: %u\n", e1->icu->idx);
+}
+
+static void
+dump_edges (const char *msg, struct import_cu **ipus, unsigned int npus,
+ unsigned int ncus)
+{
+ struct import_cu *ipu;
+ unsigned int i;
+ fprintf (stderr, "PRINT_EDGES: %s\n", msg);
+ fprintf (stderr, "PUs\n");
+ for (ipu = ipus[0]; ipu; ipu = ipu->next)
+ dump_edges_1 (ipu);
+ fprintf (stderr, "CUs\n");
+ for (i = 0; i < ncus; i++)
+ dump_edges_1 (ipus[i + npus]);
+}
+
/* Helper function for debugging create_import_tree. Verify
various invariants for CU/PU IPU. */
static void
@@ -6069,7 +6097,6 @@ verify_edges (struct import_cu **ipus, unsigned int npus, unsigned int ncus)
verify_edges_1 (ipus[i + npus], &ic, &oc);
assert (ic == oc);
}
-#endif
/* Function to optimize the size of DW_TAG_imported_unit DIEs by
creating an inclusion tree, instead of each CU importing all
@@ -6249,6 +6276,10 @@ create_import_tree (void)
for (; puidx < npus + ncus; puidx++)
ipus[puidx]->idx = puidx;
last_pu = ipus[npus - 1];
+ if (unlikely (dump_edges_p))
+ dump_edges ("phase 1", ipus, npus, ncus);
+ if (unlikely (verify_edges_p))
+ verify_edges (ipus, npus, ncus);
/* Now, for the above constructed bipartite graph, find K x,2 components
where x >= 5 (for DWARF3 and above or ptr_size 4, for DWARF2 and
ptr_size 8 it can be even x == 4) and add a new PU node, where all
@@ -6407,6 +6438,10 @@ create_import_tree (void)
}
}
}
+ if (unlikely (dump_edges_p))
+ dump_edges ("phase 2", ipus, npus, ncus);
+ if (unlikely (verify_edges_p))
+ verify_edges (ipus, npus, ncus);
/* Try to merge PUs which have the same set of referrers if
beneficial, or if one PU has a subset of referrers of the
other, attempt to replace all the incoming edges from the
@@ -6633,6 +6668,10 @@ create_import_tree (void)
for (icu = ipu->next; icu; icu = icu->next)
icu->seen = false;
}
+ if (unlikely (dump_edges_p))
+ dump_edges ("phase 3", ipus, npus, ncus);
+ if (unlikely (verify_edges_p))
+ verify_edges (ipus, npus, ncus);
/* Create DW_TAG_partial_unit (and containing dw_cu structures). */
if (fi_multifile)
{
@@ -12630,6 +12669,8 @@ static struct option dwz_options[] =
{ "devel-dump-dies", no_argument, &dump_dies_p, 1 },
{ "devel-unoptimized-multifile",
no_argument, &unoptimized_multifile, 1 },
+ { "devel-verify-edges",no_argument, &verify_edges_p, 1 },
+ { "devel-dump-edges", no_argument, &dump_edges_p, 1 },
#endif
{ NULL, no_argument, 0, 0 }
};
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