- Patches added (backport from gdb-patches, swo#30728):
* gdb-symtab-refactor-condition-in-scan_attributes.patch * gdb-symtab-factor-out-m_die_range_map-usage.patch * gdb-symtab-handle-nullptr-parent-in-parent_map-set_p.patch * gdb-symtab-factor-out-m_deferred_entries-usage.patch * gdb-symtab-resolve-deferred-entries-inter-shard-case.patch * gdb-symtab-keep-track-of-processed-dies-in-shard.patch * gdb-symtab-resolve-deferred-entries-intra-shard-case.patch * gdb-symtab-don-t-defer-backward-refs-inter-cu-intra-.patch * gdb-symtab-recurse-into-c-dw_tag_subprogram-dies-for.patch * gdb-symtab-keep-track-of-all-parents-for-cooked-inde.patch * gdb-symtab-fix-dw_tag_inlined_subroutine-entries-in-.patch OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=373
This commit is contained in:
parent
da80731f87
commit
4bfe82299f
74
gdb-symtab-don-t-defer-backward-refs-inter-cu-intra-.patch
Normal file
74
gdb-symtab-don-t-defer-backward-refs-inter-cu-intra-.patch
Normal file
@ -0,0 +1,74 @@
|
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From 6d472b241c96f181f88867860e92f1dfe7364903 Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Sat, 16 Sep 2023 04:07:22 +0200
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Subject: [PATCH 08/11] [gdb/symtab] Don't defer backward refs, inter-cu
|
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intra-shard case
|
||||
|
||||
In patch "[gdb/symtab] Resolve deferred entries, inter-shard case" we've
|
||||
solved the generic case of handling deferred entries.
|
||||
|
||||
Add an optimization that doesn't defer inter-CU intra-shard dependencies that
|
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are present in the shard's parent map.
|
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|
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Tested on x86_64-linux.
|
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---
|
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gdb/dwarf2/read.c | 29 ++++++++++++++++++++++++++++-
|
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1 file changed, 28 insertions(+), 1 deletion(-)
|
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|
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diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
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||||
index 0ab3e1a1500..d2d50b5c9cc 100644
|
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--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -6709,6 +6709,12 @@ class cooked_index_storage
|
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m_index->set_parent_valid (start, end);
|
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}
|
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|
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+ /* Return true if find_parents can be relied upon. */
|
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+ bool parent_valid (CORE_ADDR addr)
|
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+ {
|
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+ return m_index->parent_valid (addr);
|
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+ }
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+
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private:
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|
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/* Hash function for a cutu_reader. */
|
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@@ -6857,6 +6863,12 @@ class cooked_indexer
|
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{
|
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m_index_storage->set_parent_valid (start, end);
|
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}
|
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+
|
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+ /* Return true if find_parents can be relied upon. */
|
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+ bool parent_valid (CORE_ADDR addr)
|
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+ {
|
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+ return m_index_storage->parent_valid (addr);
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+ }
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};
|
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|
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/* Subroutine of dwarf2_build_psymtabs_hard to simplify it.
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@@ -18387,7 +18399,22 @@ cooked_indexer::scan_attributes (dwarf2_per_cu_data *scanning_per_cu,
|
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else
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||||
{
|
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/* Inter-CU case. */
|
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- *maybe_defer = addr;
|
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+ if (parent_valid (addr))
|
||||
+ {
|
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+ auto tmp = find_parent (addr);
|
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+ if (tmp == &parent_map::deferred)
|
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+ {
|
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+ /* Defer because origin is deferred. */
|
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+ *maybe_defer = addr;
|
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+ }
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+ else
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+ *parent_entry = tmp;
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+ }
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+ else
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+ {
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+ /* Defer because origin is in other shard. */
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+ *maybe_defer = addr;
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+ }
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}
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}
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--
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2.35.3
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|
76
gdb-symtab-factor-out-m_deferred_entries-usage.patch
Normal file
76
gdb-symtab-factor-out-m_deferred_entries-usage.patch
Normal file
@ -0,0 +1,76 @@
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From dac6c3b27a77589078add7e4e4586515ac85610d Mon Sep 17 00:00:00 2001
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From: Tom de Vries <tdevries@suse.de>
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Date: Fri, 15 Sep 2023 08:38:00 +0200
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Subject: [PATCH 04/11] [gdb/symtab] Factor out m_deferred_entries usage
|
||||
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Factor out usage of cooked_indexer::m_deferred_entries in new member
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functions defer_entry, handle_deferred_entries and resolve_deferred_entry.
|
||||
|
||||
Tested on x86_64-linux.
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---
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gdb/dwarf2/read.c | 35 ++++++++++++++++++++++++++++-------
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1 file changed, 28 insertions(+), 7 deletions(-)
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diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
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index 1092cb1dca9..ff5be8e7dc5 100644
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--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
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@@ -6822,6 +6822,32 @@ class cooked_indexer
|
||||
we'll know the containing context of all the DIEs that we might
|
||||
have scanned. This vector stores these deferred entries. */
|
||||
std::vector<deferred_entry> m_deferred_entries;
|
||||
+
|
||||
+ /* Defer creating a cooked_index_entry corresponding to deferred_entry DE. */
|
||||
+ void defer_entry (const deferred_entry &de)
|
||||
+ {
|
||||
+ m_deferred_entries.push_back (de);
|
||||
+ }
|
||||
+
|
||||
+ /* Create a cooked_index_entry corresponding to deferred_entry DE with
|
||||
+ parent PARENT_ENTRY. */
|
||||
+ const cooked_index_entry *resolve_deferred_entry
|
||||
+ (const deferred_entry &de, const cooked_index_entry *parent_entry)
|
||||
+ {
|
||||
+ return m_index_storage->add (de.die_offset, de.tag, de.flags, de.name,
|
||||
+ parent_entry, m_per_cu);
|
||||
+ }
|
||||
+
|
||||
+ /* Create cooked_index_entries for the deferred entries. */
|
||||
+ void handle_deferred_entries ()
|
||||
+ {
|
||||
+ for (const auto &entry : m_deferred_entries)
|
||||
+ {
|
||||
+ const cooked_index_entry *parent_entry
|
||||
+ = find_parent (entry.spec_offset);
|
||||
+ resolve_deferred_entry (entry, parent_entry);
|
||||
+ }
|
||||
+ }
|
||||
};
|
||||
|
||||
/* Subroutine of dwarf2_build_psymtabs_hard to simplify it.
|
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@@ -18519,7 +18545,7 @@ cooked_indexer::index_dies (cutu_reader *reader,
|
||||
if (name != nullptr)
|
||||
{
|
||||
if (defer != 0)
|
||||
- m_deferred_entries.push_back ({
|
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+ defer_entry ({
|
||||
this_die, name, defer, abbrev->tag, flags
|
||||
});
|
||||
else
|
||||
@@ -18624,12 +18650,7 @@ cooked_indexer::make_index (cutu_reader *reader)
|
||||
return;
|
||||
index_dies (reader, reader->info_ptr, nullptr, false);
|
||||
|
||||
- for (const auto &entry : m_deferred_entries)
|
||||
- {
|
||||
- const cooked_index_entry *parent = find_parent (entry.spec_offset);
|
||||
- m_index_storage->add (entry.die_offset, entry.tag, entry.flags,
|
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- entry.name, parent, m_per_cu);
|
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- }
|
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+ handle_deferred_entries ();
|
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}
|
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|
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/* An implementation of quick_symbol_functions for the cooked DWARF
|
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--
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2.35.3
|
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|
153
gdb-symtab-factor-out-m_die_range_map-usage.patch
Normal file
153
gdb-symtab-factor-out-m_die_range_map-usage.patch
Normal file
@ -0,0 +1,153 @@
|
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From 6ac3acf29782a059258fdfe21bd55f1716fc46ed Mon Sep 17 00:00:00 2001
|
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From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Tue, 22 Aug 2023 13:17:47 +0200
|
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Subject: [PATCH 02/11] [gdb/symtab] Factor out m_die_range_map usage
|
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|
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Factor out usage of cooked_indexer::m_die_range_map into new class parent_map
|
||||
with member functions find_parent and set_parent, and static member function
|
||||
form_addr.
|
||||
|
||||
Tested on x86_64-linux.
|
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---
|
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gdb/dwarf2/cooked-index.h | 32 ++++++++++++++++++++++++++
|
||||
gdb/dwarf2/read.c | 48 +++++++++++++++++++++------------------
|
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2 files changed, 58 insertions(+), 22 deletions(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/cooked-index.h b/gdb/dwarf2/cooked-index.h
|
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index 2ef1f4b27e9..1c967bdbf86 100644
|
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--- a/gdb/dwarf2/cooked-index.h
|
||||
+++ b/gdb/dwarf2/cooked-index.h
|
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@@ -233,6 +233,38 @@ struct cooked_index_entry : public allocate_on_obstack
|
||||
bool for_name) const;
|
||||
};
|
||||
|
||||
+class parent_map
|
||||
+{
|
||||
+public:
|
||||
+ /* A helper function to turn a section offset into an address that
|
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+ can be used in a parent_map. */
|
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+ static CORE_ADDR form_addr (sect_offset offset, bool is_dwz)
|
||||
+ {
|
||||
+ CORE_ADDR value = to_underlying (offset);
|
||||
+ if (is_dwz)
|
||||
+ value |= ((CORE_ADDR) 1) << (8 * sizeof (CORE_ADDR) - 1);
|
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+ return value;
|
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+ }
|
||||
+
|
||||
+ /* Find the parent of DIE LOOKUP. */
|
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+ const cooked_index_entry *find_parent (CORE_ADDR lookup) const
|
||||
+ {
|
||||
+ const void *obj = m_parent_map.find (lookup);
|
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+ return static_cast<const cooked_index_entry *> (obj);
|
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+ }
|
||||
+
|
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+ /* Set the parent of DIES in range [START, END] to PARENT_ENTRY. */
|
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+ void set_parent (CORE_ADDR start, CORE_ADDR end,
|
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+ const cooked_index_entry *parent_entry)
|
||||
+ {
|
||||
+ m_parent_map.set_empty (start, end, (void *)parent_entry);
|
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+ }
|
||||
+
|
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+private:
|
||||
+ /* An addrmap that maps from section offsets to cooked_index_entry *. */
|
||||
+ addrmap_mutable m_parent_map;
|
||||
+};
|
||||
+
|
||||
class cooked_index_vector;
|
||||
|
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/* An index of interesting DIEs. This is "cooked", in contrast to a
|
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diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
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index 00471d20d41..1092cb1dca9 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -6722,16 +6722,6 @@ class cooked_indexer
|
||||
|
||||
private:
|
||||
|
||||
- /* A helper function to turn a section offset into an address that
|
||||
- can be used in an addrmap. */
|
||||
- CORE_ADDR form_addr (sect_offset offset, bool is_dwz)
|
||||
- {
|
||||
- CORE_ADDR value = to_underlying (offset);
|
||||
- if (is_dwz)
|
||||
- value |= ((CORE_ADDR) 1) << (8 * sizeof (CORE_ADDR) - 1);
|
||||
- return value;
|
||||
- }
|
||||
-
|
||||
/* A helper function to scan the PC bounds of READER and record them
|
||||
in the storage's addrmap. */
|
||||
void check_bounds (cutu_reader *reader);
|
||||
@@ -6799,7 +6789,20 @@ class cooked_indexer
|
||||
/* An addrmap that maps from section offsets (see the form_addr
|
||||
method) to newly-created entries. See m_deferred_entries to
|
||||
understand this. */
|
||||
- addrmap_mutable m_die_range_map;
|
||||
+ parent_map m_die_range_map;
|
||||
+
|
||||
+ /* Find the parent of DIE LOOKUP. */
|
||||
+ const cooked_index_entry *find_parent (CORE_ADDR lookup) const
|
||||
+ {
|
||||
+ return m_die_range_map.find_parent (lookup);
|
||||
+ }
|
||||
+
|
||||
+ /* Set the parent of DIES in range [START, END] to PARENT_ENTRY. */
|
||||
+ void set_parent (CORE_ADDR start, CORE_ADDR end,
|
||||
+ const cooked_index_entry *parent_entry)
|
||||
+ {
|
||||
+ m_die_range_map.set_parent (start, end, parent_entry);
|
||||
+ }
|
||||
|
||||
/* A single deferred entry. */
|
||||
struct deferred_entry
|
||||
@@ -18317,15 +18320,13 @@ cooked_indexer::scan_attributes (dwarf2_per_cu_data *scanning_per_cu,
|
||||
|
||||
if (*parent_entry == nullptr)
|
||||
{
|
||||
- CORE_ADDR addr = form_addr (origin_offset, origin_is_dwz);
|
||||
+ CORE_ADDR addr
|
||||
+ = parent_map::form_addr (origin_offset, origin_is_dwz);
|
||||
if (new_reader->cu == reader->cu
|
||||
&& new_info_ptr > watermark_ptr)
|
||||
*maybe_defer = addr;
|
||||
else
|
||||
- {
|
||||
- void *obj = m_die_range_map.find (addr);
|
||||
- *parent_entry = static_cast <cooked_index_entry *> (obj);
|
||||
- }
|
||||
+ *parent_entry = find_parent (addr);
|
||||
}
|
||||
|
||||
unsigned int bytes_read;
|
||||
@@ -18444,11 +18445,15 @@ cooked_indexer::recurse (cutu_reader *reader,
|
||||
|
||||
if (parent_entry != nullptr)
|
||||
{
|
||||
- CORE_ADDR start = form_addr (parent_entry->die_offset,
|
||||
- reader->cu->per_cu->is_dwz);
|
||||
- CORE_ADDR end = form_addr (sect_offset (info_ptr - 1 - reader->buffer),
|
||||
+ /* Both start and end are inclusive, so use both "+ 1" and "- 1" to
|
||||
+ limit the range to the children of parent_entry. */
|
||||
+ CORE_ADDR start
|
||||
+ = parent_map::form_addr (parent_entry->die_offset + 1,
|
||||
+ reader->cu->per_cu->is_dwz);
|
||||
+ CORE_ADDR end
|
||||
+ = parent_map::form_addr (sect_offset (info_ptr - 1 - reader->buffer),
|
||||
reader->cu->per_cu->is_dwz);
|
||||
- m_die_range_map.set_empty (start, end, (void *) parent_entry);
|
||||
+ set_parent (start, end, parent_entry);
|
||||
}
|
||||
|
||||
return info_ptr;
|
||||
@@ -18621,8 +18626,7 @@ cooked_indexer::make_index (cutu_reader *reader)
|
||||
|
||||
for (const auto &entry : m_deferred_entries)
|
||||
{
|
||||
- void *obj = m_die_range_map.find (entry.spec_offset);
|
||||
- cooked_index_entry *parent = static_cast<cooked_index_entry *> (obj);
|
||||
+ const cooked_index_entry *parent = find_parent (entry.spec_offset);
|
||||
m_index_storage->add (entry.die_offset, entry.tag, entry.flags,
|
||||
entry.name, parent, m_per_cu);
|
||||
}
|
||||
--
|
||||
2.35.3
|
||||
|
112
gdb-symtab-fix-dw_tag_inlined_subroutine-entries-in-.patch
Normal file
112
gdb-symtab-fix-dw_tag_inlined_subroutine-entries-in-.patch
Normal file
@ -0,0 +1,112 @@
|
||||
From 19185006cfe0901da907da4f09fbc197aba976a2 Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Fri, 11 Aug 2023 01:36:50 +0200
|
||||
Subject: [PATCH 11/11] [gdb/symtab] Fix DW_TAG_inlined_subroutine entries in
|
||||
the cooked index
|
||||
|
||||
We get incorrect qualified names in the cooked index for
|
||||
DW_TAG_inlined_subroutine DIEs with abstract origin, due to the fact that the
|
||||
DIE parent is used instead of the abstract origin.
|
||||
|
||||
Fix this by preferring the abstract origin parent, if available.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
|
||||
PR symtab/30728
|
||||
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30728
|
||||
---
|
||||
gdb/dwarf2/read.c | 67 ++++++++++++++++++++++-------------------------
|
||||
1 file changed, 32 insertions(+), 35 deletions(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index e2d4fe8cde6..418acaabc60 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -18369,52 +18369,49 @@ cooked_indexer::scan_attributes (dwarf2_per_cu_data *scanning_per_cu,
|
||||
const gdb_byte *new_info_ptr = (new_reader->buffer
|
||||
+ to_underlying (origin_offset));
|
||||
|
||||
- if (*parent_entry == nullptr)
|
||||
+ gdb_assert (reader->cu->per_cu->is_debug_types
|
||||
+ == new_reader->cu->per_cu->is_debug_types);
|
||||
+ CORE_ADDR addr
|
||||
+ = parent_map::form_addr (origin_offset, origin_is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
+ if (new_reader->cu == reader->cu)
|
||||
{
|
||||
- gdb_assert (reader->cu->per_cu->is_debug_types
|
||||
- == new_reader->cu->per_cu->is_debug_types);
|
||||
- CORE_ADDR addr
|
||||
- = parent_map::form_addr (origin_offset, origin_is_dwz,
|
||||
- reader->cu->per_cu->is_debug_types);
|
||||
- if (new_reader->cu == reader->cu)
|
||||
+ /* Intra-CU case. */
|
||||
+ if (new_info_ptr > watermark_ptr)
|
||||
{
|
||||
- /* Intra-CU case. */
|
||||
- if (new_info_ptr > watermark_ptr)
|
||||
- {
|
||||
- /* Defer because origin is not read yet. */
|
||||
- *maybe_defer = addr;
|
||||
- }
|
||||
- else
|
||||
- {
|
||||
- auto tmp = find_parent (addr);
|
||||
- if (tmp == &parent_map::deferred)
|
||||
- {
|
||||
- /* Defer because origin is deferred. */
|
||||
- *maybe_defer = addr;
|
||||
- }
|
||||
- else
|
||||
- *parent_entry = tmp;
|
||||
- }
|
||||
+ /* Defer because origin is not read yet. */
|
||||
+ *maybe_defer = addr;
|
||||
}
|
||||
else
|
||||
{
|
||||
- /* Inter-CU case. */
|
||||
- if (parent_valid (addr))
|
||||
+ auto tmp = find_parent (addr);
|
||||
+ if (tmp == &parent_map::deferred)
|
||||
{
|
||||
- auto tmp = find_parent (addr);
|
||||
- if (tmp == &parent_map::deferred)
|
||||
- {
|
||||
- /* Defer because origin is deferred. */
|
||||
- *maybe_defer = addr;
|
||||
- }
|
||||
- else
|
||||
- *parent_entry = tmp;
|
||||
+ /* Defer because origin is deferred. */
|
||||
+ *maybe_defer = addr;
|
||||
}
|
||||
else
|
||||
+ *parent_entry = tmp;
|
||||
+ }
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ /* Inter-CU case. */
|
||||
+ if (parent_valid (addr))
|
||||
+ {
|
||||
+ auto tmp = find_parent (addr);
|
||||
+ if (tmp == &parent_map::deferred)
|
||||
{
|
||||
- /* Defer because origin is in other shard. */
|
||||
+ /* Defer because origin is deferred. */
|
||||
*maybe_defer = addr;
|
||||
}
|
||||
+ else
|
||||
+ *parent_entry = tmp;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ /* Defer because origin is in other shard. */
|
||||
+ *maybe_defer = addr;
|
||||
}
|
||||
}
|
||||
|
||||
--
|
||||
2.35.3
|
||||
|
37
gdb-symtab-handle-nullptr-parent-in-parent_map-set_p.patch
Normal file
37
gdb-symtab-handle-nullptr-parent-in-parent_map-set_p.patch
Normal file
@ -0,0 +1,37 @@
|
||||
From 933f8ee225d4ccd3db9b81312dba76ae5a50b4ea Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Fri, 25 Aug 2023 09:30:54 +0200
|
||||
Subject: [PATCH 03/11] [gdb/symtab] Handle nullptr parent in
|
||||
parent_map::set_parent
|
||||
|
||||
Set_parent uses m_die_range_map.set_empty, which doesn't allow
|
||||
parent_entry == nullptr.
|
||||
|
||||
So it may be necessary to guard calls to set_parent with
|
||||
"if (parent_entry != nullptr)".
|
||||
|
||||
Fix this by handling the parent_entry == nullptr case in set_parent.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
---
|
||||
gdb/dwarf2/cooked-index.h | 4 +++-
|
||||
1 file changed, 3 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/cooked-index.h b/gdb/dwarf2/cooked-index.h
|
||||
index 1c967bdbf86..f4abc7a974e 100644
|
||||
--- a/gdb/dwarf2/cooked-index.h
|
||||
+++ b/gdb/dwarf2/cooked-index.h
|
||||
@@ -257,7 +257,9 @@ class parent_map
|
||||
void set_parent (CORE_ADDR start, CORE_ADDR end,
|
||||
const cooked_index_entry *parent_entry)
|
||||
{
|
||||
- m_parent_map.set_empty (start, end, (void *)parent_entry);
|
||||
+ /* Calling set_empty with nullptr is currently not allowed. */
|
||||
+ if (parent_entry != nullptr)
|
||||
+ m_parent_map.set_empty (start, end, (void *)parent_entry);
|
||||
}
|
||||
|
||||
private:
|
||||
--
|
||||
2.35.3
|
||||
|
38
gdb-symtab-keep-track-of-all-parents-for-cooked-inde.patch
Normal file
38
gdb-symtab-keep-track-of-all-parents-for-cooked-inde.patch
Normal file
@ -0,0 +1,38 @@
|
||||
From be9718e911aff34896dcf1c3dfa41bfe34e5a9f4 Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Thu, 7 Dec 2023 10:38:05 +0100
|
||||
Subject: [PATCH 10/11] [gdb/symtab] Keep track of all parents for cooked index
|
||||
|
||||
Keep track of all parents for cooked index.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
---
|
||||
gdb/dwarf2/read.c | 12 +++++++++---
|
||||
1 file changed, 9 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index 39f6e480e19..e2d4fe8cde6 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -18626,9 +18626,15 @@ cooked_indexer::index_dies (cutu_reader *reader,
|
||||
});
|
||||
}
|
||||
else
|
||||
- this_entry = m_index_storage->add (this_die, abbrev->tag, flags,
|
||||
- name, this_parent_entry,
|
||||
- m_per_cu);
|
||||
+ {
|
||||
+ CORE_ADDR addr
|
||||
+ = parent_map::form_addr (this_die, reader->cu->per_cu->is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
+ set_parent (addr, addr, this_parent_entry);
|
||||
+ this_entry = m_index_storage->add (this_die, abbrev->tag, flags,
|
||||
+ name, this_parent_entry,
|
||||
+ m_per_cu);
|
||||
+ }
|
||||
}
|
||||
|
||||
if (linkage_name != nullptr)
|
||||
--
|
||||
2.35.3
|
||||
|
126
gdb-symtab-keep-track-of-processed-dies-in-shard.patch
Normal file
126
gdb-symtab-keep-track-of-processed-dies-in-shard.patch
Normal file
@ -0,0 +1,126 @@
|
||||
From 439271c6fc28387ea7b6fb6e8bb07963e8b3fd7d Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Sun, 24 Sep 2023 11:41:39 +0200
|
||||
Subject: [PATCH 06/11] [gdb/symtab] Keep track of processed DIEs in shard
|
||||
|
||||
For optimizations in two following patches, we keep track in each shard which
|
||||
DIEs have been processed.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
---
|
||||
gdb/dwarf2/cooked-index.c | 1 +
|
||||
gdb/dwarf2/cooked-index.h | 15 +++++++++++++++
|
||||
gdb/dwarf2/read.c | 24 ++++++++++++++++++++++++
|
||||
3 files changed, 40 insertions(+)
|
||||
|
||||
diff --git a/gdb/dwarf2/cooked-index.c b/gdb/dwarf2/cooked-index.c
|
||||
index 4a0ccc78c5d..cef57a96384 100644
|
||||
--- a/gdb/dwarf2/cooked-index.c
|
||||
+++ b/gdb/dwarf2/cooked-index.c
|
||||
@@ -541,6 +541,7 @@ cooked_index_vector::handle_deferred_entries ()
|
||||
{
|
||||
shard->m_die_range_map.reset (nullptr);
|
||||
shard->m_deferred_entries.reset (nullptr);
|
||||
+ shard->m_die_range_map_valid.reset (nullptr);
|
||||
}
|
||||
}
|
||||
|
||||
diff --git a/gdb/dwarf2/cooked-index.h b/gdb/dwarf2/cooked-index.h
|
||||
index a06d99532ed..9d836379666 100644
|
||||
--- a/gdb/dwarf2/cooked-index.h
|
||||
+++ b/gdb/dwarf2/cooked-index.h
|
||||
@@ -312,6 +312,7 @@ class cooked_index
|
||||
{
|
||||
m_die_range_map.reset (new parent_map);
|
||||
m_deferred_entries.reset (new std::vector<deferred_entry>);
|
||||
+ m_die_range_map_valid.reset (new addrmap_mutable);
|
||||
}
|
||||
|
||||
/* Create a new cooked_index_entry and register it with this object.
|
||||
@@ -403,6 +404,18 @@ class cooked_index
|
||||
const cooked_index_entry *resolve_deferred_entry
|
||||
(const deferred_entry &entry, const cooked_index_entry *parent_entry);
|
||||
|
||||
+ /* Mark parents in range [START, END] as valid . */
|
||||
+ void set_parent_valid (CORE_ADDR start, CORE_ADDR end)
|
||||
+ {
|
||||
+ m_die_range_map_valid->set_empty (start, end, (void *) 1);
|
||||
+ }
|
||||
+
|
||||
+ /* Return true if find_parents can be relied upon. */
|
||||
+ bool parent_valid (CORE_ADDR addr)
|
||||
+ {
|
||||
+ return m_die_range_map_valid->find (addr) != nullptr;
|
||||
+ }
|
||||
+
|
||||
private:
|
||||
|
||||
/* Return the entry that is believed to represent the program's
|
||||
@@ -466,6 +479,8 @@ class cooked_index
|
||||
understand this. */
|
||||
std::unique_ptr<parent_map> m_die_range_map;
|
||||
|
||||
+ std::unique_ptr<addrmap> m_die_range_map_valid;
|
||||
+
|
||||
/* The generated DWARF can sometimes have the declaration for a
|
||||
method in a class (or perhaps namespace) scope, with the
|
||||
definition appearing outside this scope... just one of the many
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index 41fa8affcd0..ba21b6a14c9 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -6697,6 +6697,12 @@ class cooked_index_storage
|
||||
m_index->defer_entry (de);
|
||||
}
|
||||
|
||||
+ /* Mark parents in range [START, END] as valid . */
|
||||
+ void set_parent_valid (CORE_ADDR start, CORE_ADDR end)
|
||||
+ {
|
||||
+ m_index->set_parent_valid (start, end);
|
||||
+ }
|
||||
+
|
||||
private:
|
||||
|
||||
/* Hash function for a cutu_reader. */
|
||||
@@ -6840,6 +6846,11 @@ class cooked_indexer
|
||||
{
|
||||
m_index_storage->defer_entry (de);
|
||||
}
|
||||
+
|
||||
+ void set_parent_valid (CORE_ADDR start, CORE_ADDR end)
|
||||
+ {
|
||||
+ m_index_storage->set_parent_valid (start, end);
|
||||
+ }
|
||||
};
|
||||
|
||||
/* Subroutine of dwarf2_build_psymtabs_hard to simplify it.
|
||||
@@ -18512,6 +18523,11 @@ cooked_indexer::index_dies (cutu_reader *reader,
|
||||
+ to_underlying (reader->cu->header.sect_off)
|
||||
+ reader->cu->header.get_length ());
|
||||
|
||||
+ const CORE_ADDR start_cu
|
||||
+ = parent_map::form_addr (sect_offset (info_ptr - reader->buffer),
|
||||
+ reader->cu->per_cu->is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
+
|
||||
while (info_ptr < end_ptr)
|
||||
{
|
||||
sect_offset this_die = (sect_offset) (info_ptr - reader->buffer);
|
||||
@@ -18662,6 +18678,14 @@ cooked_indexer::index_dies (cutu_reader *reader,
|
||||
}
|
||||
}
|
||||
|
||||
+ {
|
||||
+ CORE_ADDR end_prev_die
|
||||
+ = parent_map::form_addr (sect_offset (info_ptr - reader->buffer - 1),
|
||||
+ reader->cu->per_cu->is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
+ set_parent_valid (start_cu, end_prev_die);
|
||||
+ }
|
||||
+
|
||||
return info_ptr;
|
||||
}
|
||||
|
||||
--
|
||||
2.35.3
|
||||
|
31
gdb-symtab-recurse-into-c-dw_tag_subprogram-dies-for.patch
Normal file
31
gdb-symtab-recurse-into-c-dw_tag_subprogram-dies-for.patch
Normal file
@ -0,0 +1,31 @@
|
||||
From 541d6970c278dc5a8e9e32246b7139261a687592 Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Thu, 7 Dec 2023 10:36:07 +0100
|
||||
Subject: [PATCH 09/11] [gdb/symtab] Recurse into c++ DW_TAG_subprogram DIEs
|
||||
for cooked index
|
||||
|
||||
Recurse into c++ DW_TAG_subprogram DIEs for cooked index, to add
|
||||
DW_TAG_inlined_subroutine entries.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
---
|
||||
gdb/dwarf2/read.c | 3 ++-
|
||||
1 file changed, 2 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index d2d50b5c9cc..39f6e480e19 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -18689,7 +18689,8 @@ cooked_indexer::index_dies (cutu_reader *reader,
|
||||
|
||||
case DW_TAG_subprogram:
|
||||
if ((m_language == language_fortran
|
||||
- || m_language == language_ada)
|
||||
+ || m_language == language_ada
|
||||
+ || m_language == language_cplus)
|
||||
&& this_entry != nullptr)
|
||||
{
|
||||
info_ptr = recurse (reader, info_ptr, this_entry, true);
|
||||
--
|
||||
2.35.3
|
||||
|
70
gdb-symtab-refactor-condition-in-scan_attributes.patch
Normal file
70
gdb-symtab-refactor-condition-in-scan_attributes.patch
Normal file
@ -0,0 +1,70 @@
|
||||
From 0bba1c5bdbcb404327ba4d5f35254b96d2e48108 Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Mon, 11 Dec 2023 15:41:26 +0100
|
||||
Subject: [PATCH 01/11] [gdb/symtab] Refactor condition in scan_attributes
|
||||
|
||||
In scan_attributes there's code:
|
||||
...
|
||||
if (new_reader->cu == reader->cu
|
||||
&& new_info_ptr > watermark_ptr
|
||||
&& *parent_entry == nullptr)
|
||||
...
|
||||
else if (*parent_entry == nullptr)
|
||||
...
|
||||
...
|
||||
that uses the "*parent_entry == nullptr" condition twice.
|
||||
|
||||
Make this somewhat more readable by factoring out the condition:
|
||||
...
|
||||
if (*parent_entry == nullptr)
|
||||
{
|
||||
if (new_reader->cu == reader->cu
|
||||
&& new_info_ptr > watermark_ptr)
|
||||
...
|
||||
else
|
||||
...
|
||||
}
|
||||
...
|
||||
|
||||
This also allows us to factor out "form_addr (origin_offset, origin_is_dwz)".
|
||||
|
||||
Tested on x86_64-linux.
|
||||
---
|
||||
gdb/dwarf2/read.c | 18 ++++++++++--------
|
||||
1 file changed, 10 insertions(+), 8 deletions(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index 2339cceb829..00471d20d41 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -18315,15 +18315,17 @@ cooked_indexer::scan_attributes (dwarf2_per_cu_data *scanning_per_cu,
|
||||
const gdb_byte *new_info_ptr = (new_reader->buffer
|
||||
+ to_underlying (origin_offset));
|
||||
|
||||
- if (new_reader->cu == reader->cu
|
||||
- && new_info_ptr > watermark_ptr
|
||||
- && *parent_entry == nullptr)
|
||||
- *maybe_defer = form_addr (origin_offset, origin_is_dwz);
|
||||
- else if (*parent_entry == nullptr)
|
||||
+ if (*parent_entry == nullptr)
|
||||
{
|
||||
- CORE_ADDR lookup = form_addr (origin_offset, origin_is_dwz);
|
||||
- *parent_entry
|
||||
- = (cooked_index_entry *) m_die_range_map.find (lookup);
|
||||
+ CORE_ADDR addr = form_addr (origin_offset, origin_is_dwz);
|
||||
+ if (new_reader->cu == reader->cu
|
||||
+ && new_info_ptr > watermark_ptr)
|
||||
+ *maybe_defer = addr;
|
||||
+ else
|
||||
+ {
|
||||
+ void *obj = m_die_range_map.find (addr);
|
||||
+ *parent_entry = static_cast <cooked_index_entry *> (obj);
|
||||
+ }
|
||||
}
|
||||
|
||||
unsigned int bytes_read;
|
||||
|
||||
base-commit: d445b7300b129a4886132ec31a23c7c2c894fa75
|
||||
--
|
||||
2.35.3
|
||||
|
502
gdb-symtab-resolve-deferred-entries-inter-shard-case.patch
Normal file
502
gdb-symtab-resolve-deferred-entries-inter-shard-case.patch
Normal file
@ -0,0 +1,502 @@
|
||||
From 7464f06e1a7ccf4c5908e563e4cf684744919dac Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Tue, 22 Aug 2023 14:24:42 +0200
|
||||
Subject: [PATCH 05/11] [gdb/symtab] Resolve deferred entries, inter-shard case
|
||||
|
||||
Generically solve the case of inter-CU dependencies, including inter-shard
|
||||
dependencies:
|
||||
- mark deferred entries in new data structure m_deferred,
|
||||
- return &parent_map::deferred in find_parent for deferred entries,
|
||||
- defer all intra-CU dependencies that depend on deferred entries,
|
||||
- defer all inter-CU dependencies (note that two subsequent patches implement
|
||||
optimizations to deal with this more optimally),
|
||||
- move m_die_range_map and m_deferred_dies to cooked_index_shard, and
|
||||
- move handle_deferred_dies to the cooked_index, where it is called in the
|
||||
constructor, and update it to handle the intra-shard case.
|
||||
|
||||
Handling units from the .debug_info section alongside units from the
|
||||
.debug_types section requires us to extend form_addr to take is_debug_types
|
||||
into account.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
|
||||
PR symtab/30846
|
||||
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30846
|
||||
---
|
||||
gdb/dwarf2/cooked-index.c | 77 +++++++++++++++++++++++
|
||||
gdb/dwarf2/cooked-index.h | 105 ++++++++++++++++++++++++++++++-
|
||||
gdb/dwarf2/read.c | 128 ++++++++++++++++++++++----------------
|
||||
3 files changed, 254 insertions(+), 56 deletions(-)
|
||||
|
||||
diff --git a/gdb/dwarf2/cooked-index.c b/gdb/dwarf2/cooked-index.c
|
||||
index 2b7f9054fe5..4a0ccc78c5d 100644
|
||||
--- a/gdb/dwarf2/cooked-index.c
|
||||
+++ b/gdb/dwarf2/cooked-index.c
|
||||
@@ -200,6 +200,12 @@ cooked_index_entry::write_scope (struct obstack *storage,
|
||||
|
||||
/* See cooked-index.h. */
|
||||
|
||||
+cooked_index_entry parent_map::deferred((sect_offset)0, (dwarf_tag)0,
|
||||
+ (cooked_index_flag)0, nullptr,
|
||||
+ nullptr, nullptr);
|
||||
+
|
||||
+/* See cooked-index.h. */
|
||||
+
|
||||
const cooked_index_entry *
|
||||
cooked_index::add (sect_offset die_offset, enum dwarf_tag tag,
|
||||
cooked_index_flag flags, const char *name,
|
||||
@@ -402,6 +408,8 @@ cooked_index::find (const std::string &name, bool completing)
|
||||
cooked_index_vector::cooked_index_vector (vec_type &&vec)
|
||||
: m_vector (std::move (vec))
|
||||
{
|
||||
+ handle_deferred_entries ();
|
||||
+
|
||||
for (auto &idx : m_vector)
|
||||
idx->finalize ();
|
||||
}
|
||||
@@ -467,6 +475,75 @@ cooked_index_vector::get_main () const
|
||||
return result;
|
||||
}
|
||||
|
||||
+/* See cooked-index.h. */
|
||||
+
|
||||
+const cooked_index_entry *
|
||||
+cooked_index::resolve_deferred_entry
|
||||
+ (const deferred_entry &de, const cooked_index_entry *parent_entry)
|
||||
+{
|
||||
+ reset_parent_deferred (parent_map::form_addr (de.die_offset, de.per_cu_2->is_dwz,
|
||||
+ de.per_cu_2->is_debug_types));
|
||||
+ return add (de.die_offset, de.tag, de.flags, de.name,
|
||||
+ parent_entry, de.per_cu);
|
||||
+}
|
||||
+
|
||||
+/* See cooked-index.h. */
|
||||
+
|
||||
+const cooked_index_entry *
|
||||
+cooked_index_vector::find_parent_deferred_entry
|
||||
+ (const cooked_index::deferred_entry &entry) const
|
||||
+{
|
||||
+ const cooked_index_entry *parent_entry = nullptr;
|
||||
+ for (auto &parent_map_shard : m_vector)
|
||||
+ {
|
||||
+ auto res = parent_map_shard->find_parent (entry.spec_offset);
|
||||
+ if (res != nullptr)
|
||||
+ {
|
||||
+ parent_entry = res;
|
||||
+ break;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ return parent_entry;
|
||||
+}
|
||||
+
|
||||
+/* See cooked-index.h. */
|
||||
+
|
||||
+void
|
||||
+cooked_index_vector::handle_deferred_entries ()
|
||||
+{
|
||||
+ bool changed;
|
||||
+ bool deferred;
|
||||
+ do
|
||||
+ {
|
||||
+ deferred = false;
|
||||
+ changed = false;
|
||||
+ for (auto &shard : m_vector)
|
||||
+ for (auto it = shard->m_deferred_entries->begin ();
|
||||
+ it != shard->m_deferred_entries->end (); )
|
||||
+ {
|
||||
+ const cooked_index_entry *parent_entry
|
||||
+ = find_parent_deferred_entry (*it);
|
||||
+ if (parent_entry == &parent_map::deferred)
|
||||
+ {
|
||||
+ deferred = true;
|
||||
+ it++;
|
||||
+ continue;
|
||||
+ }
|
||||
+ shard->resolve_deferred_entry (*it, parent_entry);
|
||||
+ it = shard->m_deferred_entries->erase (it);
|
||||
+ changed = true;
|
||||
+ }
|
||||
+ }
|
||||
+ while (changed && deferred);
|
||||
+
|
||||
+ for (auto &shard : m_vector)
|
||||
+ {
|
||||
+ shard->m_die_range_map.reset (nullptr);
|
||||
+ shard->m_deferred_entries.reset (nullptr);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
void _initialize_cooked_index ();
|
||||
void
|
||||
_initialize_cooked_index ()
|
||||
diff --git a/gdb/dwarf2/cooked-index.h b/gdb/dwarf2/cooked-index.h
|
||||
index f4abc7a974e..a06d99532ed 100644
|
||||
--- a/gdb/dwarf2/cooked-index.h
|
||||
+++ b/gdb/dwarf2/cooked-index.h
|
||||
@@ -34,6 +34,7 @@
|
||||
#include "dwarf2/mapped-index.h"
|
||||
#include "dwarf2/tag.h"
|
||||
#include "gdbsupport/range-chain.h"
|
||||
+#include <unordered_set>
|
||||
|
||||
struct dwarf2_per_cu_data;
|
||||
|
||||
@@ -236,19 +237,29 @@ struct cooked_index_entry : public allocate_on_obstack
|
||||
class parent_map
|
||||
{
|
||||
public:
|
||||
+ /* A dummy cooked_index_entry to mark that computing the parent has been
|
||||
+ deferred. */
|
||||
+ static cooked_index_entry deferred;
|
||||
+
|
||||
/* A helper function to turn a section offset into an address that
|
||||
can be used in a parent_map. */
|
||||
- static CORE_ADDR form_addr (sect_offset offset, bool is_dwz)
|
||||
+ static CORE_ADDR form_addr (sect_offset offset, bool is_dwz,
|
||||
+ bool is_debug_types)
|
||||
{
|
||||
CORE_ADDR value = to_underlying (offset);
|
||||
if (is_dwz)
|
||||
value |= ((CORE_ADDR) 1) << (8 * sizeof (CORE_ADDR) - 1);
|
||||
+ if (is_debug_types)
|
||||
+ value |= ((CORE_ADDR) 1) << (8 * sizeof (CORE_ADDR) - 2);
|
||||
return value;
|
||||
}
|
||||
|
||||
/* Find the parent of DIE LOOKUP. */
|
||||
const cooked_index_entry *find_parent (CORE_ADDR lookup) const
|
||||
{
|
||||
+ if (m_deferred.find (lookup) != m_deferred.end ())
|
||||
+ return &parent_map::deferred;
|
||||
+
|
||||
const void *obj = m_parent_map.find (lookup);
|
||||
return static_cast<const cooked_index_entry *> (obj);
|
||||
}
|
||||
@@ -259,12 +270,28 @@ class parent_map
|
||||
{
|
||||
/* Calling set_empty with nullptr is currently not allowed. */
|
||||
if (parent_entry != nullptr)
|
||||
- m_parent_map.set_empty (start, end, (void *)parent_entry);
|
||||
+ {
|
||||
+ gdb_assert (parent_entry != &parent_map::deferred);
|
||||
+ m_parent_map.set_empty (start, end, (void *)parent_entry);
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ void set_parent_deferred (CORE_ADDR addr)
|
||||
+ {
|
||||
+ m_deferred.emplace (addr);
|
||||
+ }
|
||||
+
|
||||
+ void reset_parent_deferred (CORE_ADDR addr)
|
||||
+ {
|
||||
+ m_deferred.erase (addr);
|
||||
}
|
||||
|
||||
private:
|
||||
/* An addrmap that maps from section offsets to cooked_index_entry *. */
|
||||
addrmap_mutable m_parent_map;
|
||||
+
|
||||
+ /* DIEs that are deffered. */
|
||||
+ std::unordered_set<CORE_ADDR> m_deferred;
|
||||
};
|
||||
|
||||
class cooked_index_vector;
|
||||
@@ -279,9 +306,14 @@ class cooked_index_vector;
|
||||
class cooked_index
|
||||
{
|
||||
public:
|
||||
- cooked_index () = default;
|
||||
DISABLE_COPY_AND_ASSIGN (cooked_index);
|
||||
|
||||
+ cooked_index ()
|
||||
+ {
|
||||
+ m_die_range_map.reset (new parent_map);
|
||||
+ m_deferred_entries.reset (new std::vector<deferred_entry>);
|
||||
+ }
|
||||
+
|
||||
/* Create a new cooked_index_entry and register it with this object.
|
||||
Entries are owned by this object. The new item is returned. */
|
||||
const cooked_index_entry *add (sect_offset die_offset, enum dwarf_tag tag,
|
||||
@@ -325,6 +357,52 @@ class cooked_index
|
||||
for completion, will be returned. */
|
||||
range find (const std::string &name, bool completing);
|
||||
|
||||
+ /* Find the parent of DIE LOOKUP. */
|
||||
+ const cooked_index_entry *
|
||||
+ find_parent (CORE_ADDR lookup) const
|
||||
+ {
|
||||
+ return m_die_range_map->find_parent (lookup);
|
||||
+ }
|
||||
+
|
||||
+ /* Set the parent of DIES in range [START, END] to PARENT_ENTRY. */
|
||||
+ void set_parent (CORE_ADDR start, CORE_ADDR end,
|
||||
+ const cooked_index_entry *parent_entry)
|
||||
+ {
|
||||
+ m_die_range_map->set_parent (start, end, parent_entry);
|
||||
+ }
|
||||
+
|
||||
+ void set_parent_deferred (CORE_ADDR addr)
|
||||
+ {
|
||||
+ m_die_range_map->set_parent_deferred (addr);
|
||||
+ }
|
||||
+
|
||||
+ void reset_parent_deferred (CORE_ADDR addr)
|
||||
+ {
|
||||
+ m_die_range_map->reset_parent_deferred (addr);
|
||||
+ }
|
||||
+
|
||||
+ /* A single deferred entry. See m_deferred_entries. */
|
||||
+ struct deferred_entry
|
||||
+ {
|
||||
+ sect_offset die_offset;
|
||||
+ const char *name;
|
||||
+ CORE_ADDR spec_offset;
|
||||
+ dwarf_tag tag;
|
||||
+ cooked_index_flag flags;
|
||||
+ dwarf2_per_cu_data *per_cu;
|
||||
+ dwarf2_per_cu_data *per_cu_2;
|
||||
+ };
|
||||
+
|
||||
+ /* Defer creating a cooked_index_entry corresponding to DEFERRED. */
|
||||
+ void defer_entry (deferred_entry de)
|
||||
+ {
|
||||
+ m_deferred_entries->push_back (de);
|
||||
+ }
|
||||
+
|
||||
+ /* Variant of add that takes a deferred_entry as parameter. */
|
||||
+ const cooked_index_entry *resolve_deferred_entry
|
||||
+ (const deferred_entry &entry, const cooked_index_entry *parent_entry);
|
||||
+
|
||||
private:
|
||||
|
||||
/* Return the entry that is believed to represent the program's
|
||||
@@ -382,6 +460,20 @@ class cooked_index
|
||||
that the 'get' method is never called on this future, only
|
||||
'wait'. */
|
||||
gdb::future<void> m_future;
|
||||
+
|
||||
+ /* An addrmap that maps from section offsets (see the form_addr
|
||||
+ method) to newly-created entries. See m_deferred_entries to
|
||||
+ understand this. */
|
||||
+ std::unique_ptr<parent_map> m_die_range_map;
|
||||
+
|
||||
+ /* The generated DWARF can sometimes have the declaration for a
|
||||
+ method in a class (or perhaps namespace) scope, with the
|
||||
+ definition appearing outside this scope... just one of the many
|
||||
+ bad things about DWARF. In order to handle this situation, we
|
||||
+ defer certain entries until the end of scanning, at which point
|
||||
+ we'll know the containing context of all the DIEs that we might
|
||||
+ have scanned. This vector stores these deferred entries. */
|
||||
+ std::unique_ptr<std::vector<deferred_entry>> m_deferred_entries;
|
||||
};
|
||||
|
||||
/* The main index of DIEs. The parallel DIE indexers create
|
||||
@@ -459,6 +551,13 @@ class cooked_index_vector : public dwarf_scanner_base
|
||||
|
||||
private:
|
||||
|
||||
+ /* Find the parent corresponding to deferred entry ENTRY. */
|
||||
+ const cooked_index_entry *find_parent_deferred_entry
|
||||
+ (const cooked_index::deferred_entry &entry) const;
|
||||
+
|
||||
+ /* Create cooked_index_entries for the deferred entries. */
|
||||
+ void handle_deferred_entries ();
|
||||
+
|
||||
/* The vector of cooked_index objects. This is stored because the
|
||||
entries are stored on the obstacks in those objects. */
|
||||
vec_type m_vector;
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index ff5be8e7dc5..41fa8affcd0 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -6672,6 +6672,31 @@ class cooked_index_storage
|
||||
return &m_addrmap;
|
||||
}
|
||||
|
||||
+ /* Find the parent of DIE LOOKUP. */
|
||||
+ const cooked_index_entry *find_parent (CORE_ADDR lookup)
|
||||
+ {
|
||||
+ return m_index->find_parent (lookup);
|
||||
+ }
|
||||
+
|
||||
+ /* Set the parent of DIES in range [START, END] to PARENT_ENTRY. */
|
||||
+ void set_parent (CORE_ADDR start, CORE_ADDR end,
|
||||
+ const cooked_index_entry *parent_entry)
|
||||
+ {
|
||||
+ m_index->set_parent (start, end, parent_entry);
|
||||
+ }
|
||||
+
|
||||
+ /* Set the parent of DIE at ADDR as deferred. */
|
||||
+ void set_parent_deferred (CORE_ADDR addr)
|
||||
+ {
|
||||
+ m_index->set_parent_deferred (addr);
|
||||
+ }
|
||||
+
|
||||
+ /* Defer creating a cooked_index_entry corresponding to deferred_entry DE. */
|
||||
+ void defer_entry (cooked_index::deferred_entry de)
|
||||
+ {
|
||||
+ m_index->defer_entry (de);
|
||||
+ }
|
||||
+
|
||||
private:
|
||||
|
||||
/* Hash function for a cutu_reader. */
|
||||
@@ -6794,59 +6819,26 @@ class cooked_indexer
|
||||
/* Find the parent of DIE LOOKUP. */
|
||||
const cooked_index_entry *find_parent (CORE_ADDR lookup) const
|
||||
{
|
||||
- return m_die_range_map.find_parent (lookup);
|
||||
+ return m_index_storage->find_parent (lookup);
|
||||
}
|
||||
|
||||
/* Set the parent of DIES in range [START, END] to PARENT_ENTRY. */
|
||||
void set_parent (CORE_ADDR start, CORE_ADDR end,
|
||||
const cooked_index_entry *parent_entry)
|
||||
{
|
||||
- m_die_range_map.set_parent (start, end, parent_entry);
|
||||
+ m_index_storage->set_parent (start, end, parent_entry);
|
||||
}
|
||||
|
||||
- /* A single deferred entry. */
|
||||
- struct deferred_entry
|
||||
- {
|
||||
- sect_offset die_offset;
|
||||
- const char *name;
|
||||
- CORE_ADDR spec_offset;
|
||||
- dwarf_tag tag;
|
||||
- cooked_index_flag flags;
|
||||
- };
|
||||
-
|
||||
- /* The generated DWARF can sometimes have the declaration for a
|
||||
- method in a class (or perhaps namespace) scope, with the
|
||||
- definition appearing outside this scope... just one of the many
|
||||
- bad things about DWARF. In order to handle this situation, we
|
||||
- defer certain entries until the end of scanning, at which point
|
||||
- we'll know the containing context of all the DIEs that we might
|
||||
- have scanned. This vector stores these deferred entries. */
|
||||
- std::vector<deferred_entry> m_deferred_entries;
|
||||
-
|
||||
- /* Defer creating a cooked_index_entry corresponding to deferred_entry DE. */
|
||||
- void defer_entry (const deferred_entry &de)
|
||||
+ /* Set the parent of DIE at ADDR as deferred. */
|
||||
+ void set_parent_deferred (CORE_ADDR addr)
|
||||
{
|
||||
- m_deferred_entries.push_back (de);
|
||||
+ m_index_storage->set_parent_deferred (addr);
|
||||
}
|
||||
|
||||
- /* Create a cooked_index_entry corresponding to deferred_entry DE with
|
||||
- parent PARENT_ENTRY. */
|
||||
- const cooked_index_entry *resolve_deferred_entry
|
||||
- (const deferred_entry &de, const cooked_index_entry *parent_entry)
|
||||
- {
|
||||
- return m_index_storage->add (de.die_offset, de.tag, de.flags, de.name,
|
||||
- parent_entry, m_per_cu);
|
||||
- }
|
||||
-
|
||||
- /* Create cooked_index_entries for the deferred entries. */
|
||||
- void handle_deferred_entries ()
|
||||
+ /* Defer creating a cooked_index_entry corresponding to deferred_entry DE. */
|
||||
+ void defer_entry (const cooked_index::deferred_entry &de)
|
||||
{
|
||||
- for (const auto &entry : m_deferred_entries)
|
||||
- {
|
||||
- const cooked_index_entry *parent_entry
|
||||
- = find_parent (entry.spec_offset);
|
||||
- resolve_deferred_entry (entry, parent_entry);
|
||||
- }
|
||||
+ m_index_storage->defer_entry (de);
|
||||
}
|
||||
};
|
||||
|
||||
@@ -18346,13 +18338,36 @@ cooked_indexer::scan_attributes (dwarf2_per_cu_data *scanning_per_cu,
|
||||
|
||||
if (*parent_entry == nullptr)
|
||||
{
|
||||
+ gdb_assert (reader->cu->per_cu->is_debug_types
|
||||
+ == new_reader->cu->per_cu->is_debug_types);
|
||||
CORE_ADDR addr
|
||||
- = parent_map::form_addr (origin_offset, origin_is_dwz);
|
||||
- if (new_reader->cu == reader->cu
|
||||
- && new_info_ptr > watermark_ptr)
|
||||
- *maybe_defer = addr;
|
||||
+ = parent_map::form_addr (origin_offset, origin_is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
+ if (new_reader->cu == reader->cu)
|
||||
+ {
|
||||
+ /* Intra-CU case. */
|
||||
+ if (new_info_ptr > watermark_ptr)
|
||||
+ {
|
||||
+ /* Defer because origin is not read yet. */
|
||||
+ *maybe_defer = addr;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ auto tmp = find_parent (addr);
|
||||
+ if (tmp == &parent_map::deferred)
|
||||
+ {
|
||||
+ /* Defer because origin is deferred. */
|
||||
+ *maybe_defer = addr;
|
||||
+ }
|
||||
+ else
|
||||
+ *parent_entry = tmp;
|
||||
+ }
|
||||
+ }
|
||||
else
|
||||
- *parent_entry = find_parent (addr);
|
||||
+ {
|
||||
+ /* Inter-CU case. */
|
||||
+ *maybe_defer = addr;
|
||||
+ }
|
||||
}
|
||||
|
||||
unsigned int bytes_read;
|
||||
@@ -18475,10 +18490,12 @@ cooked_indexer::recurse (cutu_reader *reader,
|
||||
limit the range to the children of parent_entry. */
|
||||
CORE_ADDR start
|
||||
= parent_map::form_addr (parent_entry->die_offset + 1,
|
||||
- reader->cu->per_cu->is_dwz);
|
||||
+ reader->cu->per_cu->is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
CORE_ADDR end
|
||||
= parent_map::form_addr (sect_offset (info_ptr - 1 - reader->buffer),
|
||||
- reader->cu->per_cu->is_dwz);
|
||||
+ reader->cu->per_cu->is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
set_parent (start, end, parent_entry);
|
||||
}
|
||||
|
||||
@@ -18545,9 +18562,16 @@ cooked_indexer::index_dies (cutu_reader *reader,
|
||||
if (name != nullptr)
|
||||
{
|
||||
if (defer != 0)
|
||||
- defer_entry ({
|
||||
- this_die, name, defer, abbrev->tag, flags
|
||||
- });
|
||||
+ {
|
||||
+ CORE_ADDR addr
|
||||
+ = parent_map::form_addr (this_die, reader->cu->per_cu->is_dwz,
|
||||
+ reader->cu->per_cu->is_debug_types);
|
||||
+ set_parent_deferred (addr);
|
||||
+ defer_entry ({
|
||||
+ this_die, name, defer, abbrev->tag, flags, m_per_cu,
|
||||
+ reader->cu->per_cu
|
||||
+ });
|
||||
+ }
|
||||
else
|
||||
this_entry = m_index_storage->add (this_die, abbrev->tag, flags,
|
||||
name, this_parent_entry,
|
||||
@@ -18649,8 +18673,6 @@ cooked_indexer::make_index (cutu_reader *reader)
|
||||
if (!reader->comp_unit_die->has_children)
|
||||
return;
|
||||
index_dies (reader, reader->info_ptr, nullptr, false);
|
||||
-
|
||||
- handle_deferred_entries ();
|
||||
}
|
||||
|
||||
/* An implementation of quick_symbol_functions for the cooked DWARF
|
||||
--
|
||||
2.35.3
|
||||
|
120
gdb-symtab-resolve-deferred-entries-intra-shard-case.patch
Normal file
120
gdb-symtab-resolve-deferred-entries-intra-shard-case.patch
Normal file
@ -0,0 +1,120 @@
|
||||
From a4bf216accd43b25ea9b9b7507c93eb973872a82 Mon Sep 17 00:00:00 2001
|
||||
From: Tom de Vries <tdevries@suse.de>
|
||||
Date: Sun, 24 Sep 2023 11:43:24 +0200
|
||||
Subject: [PATCH 07/11] [gdb/symtab] Resolve deferred entries, intra-shard case
|
||||
|
||||
In patch "[gdb/symtab] Resolve deferred entries, inter-shard case" we've
|
||||
solved the generic case of handling deferred entries.
|
||||
|
||||
Now add an optimization that handles deferred entries with an intra-shard
|
||||
dependency in the parallel for.
|
||||
|
||||
Tested on x86_64-linux.
|
||||
---
|
||||
gdb/dwarf2/cooked-index.c | 35 +++++++++++++++++++++++++++++++++++
|
||||
gdb/dwarf2/cooked-index.h | 7 +++++++
|
||||
gdb/dwarf2/read.c | 10 ++++++++++
|
||||
3 files changed, 52 insertions(+)
|
||||
|
||||
diff --git a/gdb/dwarf2/cooked-index.c b/gdb/dwarf2/cooked-index.c
|
||||
index cef57a96384..d8a12bee265 100644
|
||||
--- a/gdb/dwarf2/cooked-index.c
|
||||
+++ b/gdb/dwarf2/cooked-index.c
|
||||
@@ -408,6 +408,7 @@ cooked_index::find (const std::string &name, bool completing)
|
||||
cooked_index_vector::cooked_index_vector (vec_type &&vec)
|
||||
: m_vector (std::move (vec))
|
||||
{
|
||||
+ /* Handle deferred entries, inter-cu case. */
|
||||
handle_deferred_entries ();
|
||||
|
||||
for (auto &idx : m_vector)
|
||||
@@ -477,6 +478,40 @@ cooked_index_vector::get_main () const
|
||||
|
||||
/* See cooked-index.h. */
|
||||
|
||||
+const cooked_index_entry *
|
||||
+cooked_index::find_parent_deferred_entry
|
||||
+ (const cooked_index::deferred_entry &entry) const
|
||||
+{
|
||||
+ return find_parent (entry.spec_offset);
|
||||
+}
|
||||
+
|
||||
+/* See cooked-index.h. */
|
||||
+
|
||||
+void
|
||||
+cooked_index::handle_deferred_entries ()
|
||||
+{
|
||||
+ for (auto it = m_deferred_entries->begin (); it != m_deferred_entries->end (); )
|
||||
+ {
|
||||
+ const deferred_entry & deferred_entry = *it;
|
||||
+ if (!parent_valid (deferred_entry.spec_offset))
|
||||
+ {
|
||||
+ it++;
|
||||
+ continue;
|
||||
+ }
|
||||
+ const cooked_index_entry *parent_entry
|
||||
+ = find_parent_deferred_entry (deferred_entry);
|
||||
+ if (parent_entry == &parent_map::deferred)
|
||||
+ {
|
||||
+ it++;
|
||||
+ continue;
|
||||
+ }
|
||||
+ resolve_deferred_entry (deferred_entry, parent_entry);
|
||||
+ it = m_deferred_entries->erase (it);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+/* See cooked-index.h. */
|
||||
+
|
||||
const cooked_index_entry *
|
||||
cooked_index::resolve_deferred_entry
|
||||
(const deferred_entry &de, const cooked_index_entry *parent_entry)
|
||||
diff --git a/gdb/dwarf2/cooked-index.h b/gdb/dwarf2/cooked-index.h
|
||||
index 9d836379666..bda1ed1e155 100644
|
||||
--- a/gdb/dwarf2/cooked-index.h
|
||||
+++ b/gdb/dwarf2/cooked-index.h
|
||||
@@ -404,6 +404,13 @@ class cooked_index
|
||||
const cooked_index_entry *resolve_deferred_entry
|
||||
(const deferred_entry &entry, const cooked_index_entry *parent_entry);
|
||||
|
||||
+ /* Find the parent entry for deferred_entry ENTRY. */
|
||||
+ const cooked_index_entry *find_parent_deferred_entry
|
||||
+ (const cooked_index::deferred_entry &entry) const;
|
||||
+
|
||||
+ /* Create cooked_index_entries for the deferred entries. */
|
||||
+ void handle_deferred_entries ();
|
||||
+
|
||||
/* Mark parents in range [START, END] as valid . */
|
||||
void set_parent_valid (CORE_ADDR start, CORE_ADDR end)
|
||||
{
|
||||
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
|
||||
index ba21b6a14c9..0ab3e1a1500 100644
|
||||
--- a/gdb/dwarf2/read.c
|
||||
+++ b/gdb/dwarf2/read.c
|
||||
@@ -6697,6 +6697,12 @@ class cooked_index_storage
|
||||
m_index->defer_entry (de);
|
||||
}
|
||||
|
||||
+ /* Handle deferred entries, intra-cu case. */
|
||||
+ void handle_deferred_entries ()
|
||||
+ {
|
||||
+ m_index->handle_deferred_entries ();
|
||||
+ }
|
||||
+
|
||||
/* Mark parents in range [START, END] as valid . */
|
||||
void set_parent_valid (CORE_ADDR start, CORE_ADDR end)
|
||||
{
|
||||
@@ -7183,6 +7189,10 @@ dwarf2_build_psymtabs_hard (dwarf2_per_objfile *per_objfile)
|
||||
errors.push_back (std::move (except));
|
||||
}
|
||||
}
|
||||
+
|
||||
+ /* Handle deferred entries, intra-cu case. */
|
||||
+ thread_storage.handle_deferred_entries ();
|
||||
+
|
||||
return result_type (thread_storage.release (), std::move (errors));
|
||||
}, task_size);
|
||||
|
||||
--
|
||||
2.35.3
|
||||
|
16
gdb.changes
16
gdb.changes
@ -1,3 +1,19 @@
|
||||
-------------------------------------------------------------------
|
||||
Wed Dec 13 14:58:14 UTC 2023 - Tom de Vries <tdevries@suse.com>
|
||||
|
||||
- Patches added (backport from gdb-patches, swo#30728):
|
||||
* gdb-symtab-refactor-condition-in-scan_attributes.patch
|
||||
* gdb-symtab-factor-out-m_die_range_map-usage.patch
|
||||
* gdb-symtab-handle-nullptr-parent-in-parent_map-set_p.patch
|
||||
* gdb-symtab-factor-out-m_deferred_entries-usage.patch
|
||||
* gdb-symtab-resolve-deferred-entries-inter-shard-case.patch
|
||||
* gdb-symtab-keep-track-of-processed-dies-in-shard.patch
|
||||
* gdb-symtab-resolve-deferred-entries-intra-shard-case.patch
|
||||
* gdb-symtab-don-t-defer-backward-refs-inter-cu-intra-.patch
|
||||
* gdb-symtab-recurse-into-c-dw_tag_subprogram-dies-for.patch
|
||||
* gdb-symtab-keep-track-of-all-parents-for-cooked-inde.patch
|
||||
* gdb-symtab-fix-dw_tag_inlined_subroutine-entries-in-.patch
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Mon Nov 13 14:08:08 UTC 2023 - Tom de Vries <tdevries@suse.com>
|
||||
|
||||
|
25
gdb.spec
25
gdb.spec
@ -369,6 +369,19 @@ Patch2108: gdb-tui-fix-resizing-of-terminal-to-1-or-2-lines.patch
|
||||
# https://sourceware.org/pipermail/gdb-patches/2023-November/203943.html
|
||||
Patch2109: gdb-fix-segfault-in-for_each_block-part-1.patch
|
||||
|
||||
# https://sourceware.org/pipermail/gdb-patches/2023-December/205054.html
|
||||
Patch2120: gdb-symtab-refactor-condition-in-scan_attributes.patch
|
||||
Patch2121: gdb-symtab-factor-out-m_die_range_map-usage.patch
|
||||
Patch2122: gdb-symtab-handle-nullptr-parent-in-parent_map-set_p.patch
|
||||
Patch2123: gdb-symtab-factor-out-m_deferred_entries-usage.patch
|
||||
Patch2124: gdb-symtab-resolve-deferred-entries-inter-shard-case.patch
|
||||
Patch2125: gdb-symtab-keep-track-of-processed-dies-in-shard.patch
|
||||
Patch2126: gdb-symtab-resolve-deferred-entries-intra-shard-case.patch
|
||||
Patch2127: gdb-symtab-don-t-defer-backward-refs-inter-cu-intra-.patch
|
||||
Patch2128: gdb-symtab-recurse-into-c-dw_tag_subprogram-dies-for.patch
|
||||
Patch2129: gdb-symtab-keep-track-of-all-parents-for-cooked-inde.patch
|
||||
Patch2130: gdb-symtab-fix-dw_tag_inlined_subroutine-entries-in-.patch
|
||||
|
||||
# Debug patches.
|
||||
|
||||
#
|
||||
@ -814,6 +827,18 @@ find -name "*.info*"|xargs rm -f
|
||||
%patch2108 -p1
|
||||
%patch2109 -p1
|
||||
|
||||
%patch2120 -p1
|
||||
%patch2121 -p1
|
||||
%patch2122 -p1
|
||||
%patch2123 -p1
|
||||
%patch2124 -p1
|
||||
%patch2125 -p1
|
||||
%patch2126 -p1
|
||||
%patch2127 -p1
|
||||
%patch2128 -p1
|
||||
%patch2129 -p1
|
||||
%patch2130 -p1
|
||||
|
||||
#unpack libipt
|
||||
%if 0%{have_libipt}
|
||||
tar xzf %{SOURCE7}
|
||||
|
Loading…
x
Reference in New Issue
Block a user