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Import bare DW_TAG_lexical_block (RH BZ 1325396).

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This commit is contained in:
Jan Kratochvil 2016-05-30 15:01:00 +02:00
parent 8dde8d1082
commit 6b46b9b395
3 changed files with 588 additions and 1 deletions
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235
gdb-bare-DW_TAG_lexical_block-1of2.patch Normal file
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@ -0,0 +1,235 @@
From 3a2b436ae9958a1029545c03201b7223ff33c150 Mon Sep 17 00:00:00 2001
From: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Mon, 30 May 2016 14:11:43 +0200
Subject: [PATCH 1/2] Code cleanup: dwarf2_get_pc_bounds: -1/0/+1 -> enum
Make the code (maybe) more readable + primarily prepare it for [patch 2/2]
enum extension.
This change should have no code change impact.
gdb/ChangeLog
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: dwarf2_get_pc_bounds: -1/0/+1 -> enum
* dwarf2read.c (enum pc_bounds_kind) New.
(dwarf2_get_pc_bounds): Use it in the declaration.
(process_psymtab_comp_unit_reader): Adjust caller. Rename has_pc_info
to cu_bounds_kind.
(read_func_scope, read_lexical_block_scope, read_call_site_scope):
Adjust callers.
(dwarf2_get_pc_bounds): Use enum pc_bounds_kind in the definition.
(dwarf2_get_subprogram_pc_bounds, get_scope_pc_bounds): Adjust callers.
---
gdb/ChangeLog | 12 ++++++++++
gdb/dwarf2read.c | 71 ++++++++++++++++++++++++++++++++++++--------------------
2 files changed, 58 insertions(+), 25 deletions(-)
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,3 +1,15 @@
+2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ Code cleanup: dwarf2_get_pc_bounds: -1/0/+1 -> enum
+ * dwarf2read.c (enum pc_bounds_kind) New.
+ (dwarf2_get_pc_bounds): Use it in the declaration.
+ (process_psymtab_comp_unit_reader): Adjust caller. Rename has_pc_info
+ to cu_bounds_kind.
+ (read_func_scope, read_lexical_block_scope, read_call_site_scope):
+ Adjust callers.
+ (dwarf2_get_pc_bounds): Use enum pc_bounds_kind in the definition.
+ (dwarf2_get_subprogram_pc_bounds, get_scope_pc_bounds): Adjust callers.
+
2016-05-29 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS (QCatchSyscalls): Remove the parameter. Include ...
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -1606,9 +1606,25 @@ static void read_call_site_scope (struct die_info *die, struct dwarf2_cu *cu);
static int dwarf2_ranges_read (unsigned, CORE_ADDR *, CORE_ADDR *,
struct dwarf2_cu *, struct partial_symtab *);
-static int dwarf2_get_pc_bounds (struct die_info *,
- CORE_ADDR *, CORE_ADDR *, struct dwarf2_cu *,
- struct partial_symtab *);
+/* How dwarf2_get_pc_bounds constructed its *LOWPC and *HIGHPC return
+ values. */
+enum pc_bounds_kind
+{
+ /* No valid combination of DW_AT_low_pc, DW_AT_high_pc or DW_AT_ranges
+ was found. */
+ PC_BOUNDS_NOT_PRESENT,
+
+ /* Discontiguous range was found - that is DW_AT_ranges was found. */
+ PC_BOUNDS_RANGES,
+
+ /* Contiguous range was found - DW_AT_low_pc and DW_AT_high_pc were found. */
+ PC_BOUNDS_HIGH_LOW,
+};
+
+static enum pc_bounds_kind dwarf2_get_pc_bounds (struct die_info *,
+ CORE_ADDR *, CORE_ADDR *,
+ struct dwarf2_cu *,
+ struct partial_symtab *);
static void get_scope_pc_bounds (struct die_info *,
CORE_ADDR *, CORE_ADDR *,
@@ -5947,7 +5963,7 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
CORE_ADDR baseaddr;
CORE_ADDR best_lowpc = 0, best_highpc = 0;
struct partial_symtab *pst;
- int has_pc_info;
+ enum pc_bounds_kind cu_bounds_kind;
const char *filename;
struct process_psymtab_comp_unit_data *info
= (struct process_psymtab_comp_unit_data *) data;
@@ -5977,9 +5993,9 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
/* Possibly set the default values of LOWPC and HIGHPC from
`DW_AT_ranges'. */
- has_pc_info = dwarf2_get_pc_bounds (comp_unit_die, &best_lowpc,
- &best_highpc, cu, pst);
- if (has_pc_info == 1 && best_lowpc < best_highpc)
+ cu_bounds_kind = dwarf2_get_pc_bounds (comp_unit_die, &best_lowpc,
+ &best_highpc, cu, pst);
+ if (cu_bounds_kind == PC_BOUNDS_HIGH_LOW && best_lowpc < best_highpc)
/* Store the contiguous range if it is not empty; it can be empty for
CUs with no code. */
addrmap_set_empty (objfile->psymtabs_addrmap,
@@ -6003,7 +6019,7 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
first_die = load_partial_dies (reader, info_ptr, 1);
scan_partial_symbols (first_die, &lowpc, &highpc,
- ! has_pc_info, cu);
+ cu_bounds_kind == PC_BOUNDS_NOT_PRESENT, cu);
/* If we didn't find a lowpc, set it to highpc to avoid
complaints from `maint check'. */
@@ -6012,7 +6028,7 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
/* If the compilation unit didn't have an explicit address range,
then use the information extracted from its child dies. */
- if (! has_pc_info)
+ if (cu_bounds_kind == PC_BOUNDS_NOT_PRESENT)
{
best_lowpc = lowpc;
best_highpc = highpc;
@@ -11373,7 +11389,8 @@ read_func_scope (struct die_info *die, struct dwarf2_cu *cu)
}
/* Ignore functions with missing or invalid low and high pc attributes. */
- if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL))
+ if (dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL)
+ == PC_BOUNDS_NOT_PRESENT)
{
attr = dwarf2_attr (die, DW_AT_external, cu);
if (!attr || !DW_UNSND (attr))
@@ -11535,7 +11552,8 @@ read_lexical_block_scope (struct die_info *die, struct dwarf2_cu *cu)
as multiple lexical blocks? Handling children in a sane way would
be nasty. Might be easier to properly extend generic blocks to
describe ranges. */
- if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL))
+ if (dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL)
+ == PC_BOUNDS_NOT_PRESENT)
return;
lowpc = gdbarch_adjust_dwarf2_addr (gdbarch, lowpc + baseaddr);
highpc = gdbarch_adjust_dwarf2_addr (gdbarch, highpc + baseaddr);
@@ -11745,7 +11763,8 @@ read_call_site_scope (struct die_info *die, struct dwarf2_cu *cu)
CORE_ADDR lowpc;
/* DW_AT_entry_pc should be preferred. */
- if (!dwarf2_get_pc_bounds (target_die, &lowpc, NULL, target_cu, NULL))
+ if (dwarf2_get_pc_bounds (target_die, &lowpc, NULL, target_cu, NULL)
+ == PC_BOUNDS_NOT_PRESENT)
complaint (&symfile_complaints,
_("DW_AT_GNU_call_site_target target DIE has invalid "
"low pc, for referencing DIE 0x%x [in module %s]"),
@@ -12020,11 +12039,11 @@ dwarf2_ranges_read (unsigned offset, CORE_ADDR *low_return,
return 1;
}
-/* Get low and high pc attributes from a die. Return 1 if the attributes
- are present and valid, otherwise, return 0. Return -1 if the range is
- discontinuous, i.e. derived from DW_AT_ranges information. */
+/* Get low and high pc attributes from a die. See enum pc_bounds_kind
+ definition for the return value. *LOWPC and *HIGHPC are set iff
+ PC_BOUNDS_NOT_PRESENT is not returned. */
-static int
+static enum pc_bounds_kind
dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
CORE_ADDR *highpc, struct dwarf2_cu *cu,
struct partial_symtab *pst)
@@ -12033,7 +12052,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
struct attribute *attr_high;
CORE_ADDR low = 0;
CORE_ADDR high = 0;
- int ret = 0;
+ enum pc_bounds_kind ret = PC_BOUNDS_NOT_PRESENT;
attr_high = dwarf2_attr (die, DW_AT_high_pc, cu);
if (attr_high)
@@ -12048,10 +12067,10 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
}
else
/* Found high w/o low attribute. */
- return 0;
+ return PC_BOUNDS_NOT_PRESENT;
/* Found consecutive range of addresses. */
- ret = 1;
+ ret = PC_BOUNDS_HIGH_LOW;
}
else
{
@@ -12070,15 +12089,15 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
/* Value of the DW_AT_ranges attribute is the offset in the
.debug_ranges section. */
if (!dwarf2_ranges_read (ranges_offset, &low, &high, cu, pst))
- return 0;
+ return PC_BOUNDS_NOT_PRESENT;
/* Found discontinuous range of addresses. */
- ret = -1;
+ ret = PC_BOUNDS_RANGES;
}
}
/* read_partial_die has also the strict LOW < HIGH requirement. */
if (high <= low)
- return 0;
+ return PC_BOUNDS_NOT_PRESENT;
/* When using the GNU linker, .gnu.linkonce. sections are used to
eliminate duplicate copies of functions and vtables and such.
@@ -12089,7 +12108,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
If this is a discarded function, mark the pc bounds as invalid,
so that GDB will ignore it. */
if (low == 0 && !dwarf2_per_objfile->has_section_at_zero)
- return 0;
+ return PC_BOUNDS_NOT_PRESENT;
*lowpc = low;
if (highpc)
@@ -12110,7 +12129,8 @@ dwarf2_get_subprogram_pc_bounds (struct die_info *die,
CORE_ADDR low, high;
struct die_info *child = die->child;
- if (dwarf2_get_pc_bounds (die, &low, &high, cu, NULL))
+ if (dwarf2_get_pc_bounds (die, &low, &high, cu, NULL)
+ != PC_BOUNDS_NOT_PRESENT)
{
*lowpc = min (*lowpc, low);
*highpc = max (*highpc, high);
@@ -12147,7 +12167,8 @@ get_scope_pc_bounds (struct die_info *die,
CORE_ADDR best_high = (CORE_ADDR) 0;
CORE_ADDR current_low, current_high;
- if (dwarf2_get_pc_bounds (die, &current_low, &current_high, cu, NULL))
+ if (dwarf2_get_pc_bounds (die, &current_low, &current_high, cu, NULL)
+ != PC_BOUNDS_NOT_PRESENT)
{
best_low = current_low;
best_high = current_high;
--
2.5.5

343
gdb-bare-DW_TAG_lexical_block-2of2.patch Normal file
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@ -0,0 +1,343 @@
From e385593eef98ac92be57159e141f4b805dadbbb3 Mon Sep 17 00:00:00 2001
From: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Mon, 30 May 2016 14:14:43 +0200
Subject: [PATCH 2/2] PR 15231: import bare DW_TAG_lexical_block
Local variables in lambdas are not accessible
https://sourceware.org/bugzilla/show_bug.cgi?id=15231
GDB: read_lexical_block_scope
/* Ignore blocks with missing or invalid low and high pc attributes. */
[...]
if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL))
return;
But sometimes there is:
FAIL: gcc-5.3.1-6.fc23.x86_64
<2><92>: Abbrev Number: 11 (DW_TAG_lexical_block)
<3><9c>: Abbrev Number: 13 (DW_TAG_structure_type)
<9d> DW_AT_name : (indirect string, offset: 0x3c): <lambda()>
[...]
Where DW_TAG_lexical_block has no attributes. Such whole subtree is currently
dropped by GDB while I think it should just import all its children DIEs.
It even XFAIL->XPASSes gdb.ada/out_of_line_in_inlined.exp:
commit 0fa7fe506c242b459c4c05d331e7c7d66fb52390
Author: Joel Brobecker <brobecker@adacore.com>
out of line functions nested inside inline functions.
So I have removed that xfail.
gdb/ChangeLog
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
PR c++/15231
* dwarf2read.c (enum pc_bounds_kind): Add PC_BOUNDS_INVALID.
(process_psymtab_comp_unit_reader, read_func_scope): Adjust callers.
(read_lexical_block_scope): Import DIEs from bare DW_TAG_lexical_block.
(read_call_site_scope): Adjust callers.
(dwarf2_get_pc_bounds): Implement pc_bounds_invalid.
(dwarf2_get_subprogram_pc_bounds, get_scope_pc_bounds): Adjust callers.
gdb/testsuite/ChangeLog
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
PR c++/15231
* gdb.ada/out_of_line_in_inlined.exp: Remove xfails.
* gdb.dwarf2/dw2-lexical-block-bare.exp: New file.
---
gdb/ChangeLog | 10 ++++
gdb/dwarf2read.c | 53 ++++++++++------
gdb/testsuite/ChangeLog | 6 ++
gdb/testsuite/gdb.ada/out_of_line_in_inlined.exp | 6 --
.../gdb.dwarf2/dw2-lexical-block-bare.exp | 70 ++++++++++++++++++++++
5 files changed, 120 insertions(+), 25 deletions(-)
create mode 100644 gdb/testsuite/gdb.dwarf2/dw2-lexical-block-bare.exp
### a/gdb/ChangeLog
### b/gdb/ChangeLog
## -1,5 +1,15 @@
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
+ PR c++/15231
+ * dwarf2read.c (enum pc_bounds_kind): Add PC_BOUNDS_INVALID.
+ (process_psymtab_comp_unit_reader, read_func_scope): Adjust callers.
+ (read_lexical_block_scope): Import DIEs from bare DW_TAG_lexical_block.
+ (read_call_site_scope): Adjust callers.
+ (dwarf2_get_pc_bounds): Implement pc_bounds_invalid.
+ (dwarf2_get_subprogram_pc_bounds, get_scope_pc_bounds): Adjust callers.
+
+2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
+
Code cleanup: dwarf2_get_pc_bounds: -1/0/+1 -> enum
* dwarf2read.c (enum pc_bounds_kind) New.
(dwarf2_get_pc_bounds): Use it in the declaration.
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -1607,13 +1607,16 @@ static int dwarf2_ranges_read (unsigned, CORE_ADDR *, CORE_ADDR *,
struct dwarf2_cu *, struct partial_symtab *);
/* How dwarf2_get_pc_bounds constructed its *LOWPC and *HIGHPC return
- values. */
+ values. Keep the items ordered with increasing constraints compliance. */
enum pc_bounds_kind
{
- /* No valid combination of DW_AT_low_pc, DW_AT_high_pc or DW_AT_ranges
- was found. */
+ /* No attribute DW_AT_low_pc, DW_AT_high_pc or DW_AT_ranges was found. */
PC_BOUNDS_NOT_PRESENT,
+ /* Some of the attributes DW_AT_low_pc, DW_AT_high_pc or DW_AT_ranges
+ were present but they do not form a valid range of PC addresses. */
+ PC_BOUNDS_INVALID,
+
/* Discontiguous range was found - that is DW_AT_ranges was found. */
PC_BOUNDS_RANGES,
@@ -6019,7 +6022,7 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
first_die = load_partial_dies (reader, info_ptr, 1);
scan_partial_symbols (first_die, &lowpc, &highpc,
- cu_bounds_kind == PC_BOUNDS_NOT_PRESENT, cu);
+ cu_bounds_kind <= PC_BOUNDS_INVALID, cu);
/* If we didn't find a lowpc, set it to highpc to avoid
complaints from `maint check'. */
@@ -6028,7 +6031,7 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
/* If the compilation unit didn't have an explicit address range,
then use the information extracted from its child dies. */
- if (cu_bounds_kind == PC_BOUNDS_NOT_PRESENT)
+ if (cu_bounds_kind <= PC_BOUNDS_INVALID)
{
best_lowpc = lowpc;
best_highpc = highpc;
@@ -11390,7 +11393,7 @@ read_func_scope (struct die_info *die, struct dwarf2_cu *cu)
/* Ignore functions with missing or invalid low and high pc attributes. */
if (dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL)
- == PC_BOUNDS_NOT_PRESENT)
+ <= PC_BOUNDS_INVALID)
{
attr = dwarf2_attr (die, DW_AT_external, cu);
if (!attr || !DW_UNSND (attr))
@@ -11552,9 +11555,20 @@ read_lexical_block_scope (struct die_info *die, struct dwarf2_cu *cu)
as multiple lexical blocks? Handling children in a sane way would
be nasty. Might be easier to properly extend generic blocks to
describe ranges. */
- if (dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL)
- == PC_BOUNDS_NOT_PRESENT)
- return;
+ switch (dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL))
+ {
+ case PC_BOUNDS_NOT_PRESENT:
+ /* DW_TAG_lexical_block has no attributes, process its children as if
+ there was no wrapping by that DW_TAG_lexical_block.
+ GCC does no longer produces such DWARF since GCC r224161. */
+ for (child_die = die->child;
+ child_die != NULL && child_die->tag;
+ child_die = sibling_die (child_die))
+ process_die (child_die, cu);
+ return;
+ case PC_BOUNDS_INVALID:
+ return;
+ }
lowpc = gdbarch_adjust_dwarf2_addr (gdbarch, lowpc + baseaddr);
highpc = gdbarch_adjust_dwarf2_addr (gdbarch, highpc + baseaddr);
@@ -11764,7 +11778,7 @@ read_call_site_scope (struct die_info *die, struct dwarf2_cu *cu)
/* DW_AT_entry_pc should be preferred. */
if (dwarf2_get_pc_bounds (target_die, &lowpc, NULL, target_cu, NULL)
- == PC_BOUNDS_NOT_PRESENT)
+ <= PC_BOUNDS_INVALID)
complaint (&symfile_complaints,
_("DW_AT_GNU_call_site_target target DIE has invalid "
"low pc, for referencing DIE 0x%x [in module %s]"),
@@ -12041,7 +12055,7 @@ dwarf2_ranges_read (unsigned offset, CORE_ADDR *low_return,
/* Get low and high pc attributes from a die. See enum pc_bounds_kind
definition for the return value. *LOWPC and *HIGHPC are set iff
- PC_BOUNDS_NOT_PRESENT is not returned. */
+ neither PC_BOUNDS_NOT_PRESENT nor PC_BOUNDS_INVALID are returned. */
static enum pc_bounds_kind
dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
@@ -12052,7 +12066,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
struct attribute *attr_high;
CORE_ADDR low = 0;
CORE_ADDR high = 0;
- enum pc_bounds_kind ret = PC_BOUNDS_NOT_PRESENT;
+ enum pc_bounds_kind ret;
attr_high = dwarf2_attr (die, DW_AT_high_pc, cu);
if (attr_high)
@@ -12067,7 +12081,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
}
else
/* Found high w/o low attribute. */
- return PC_BOUNDS_NOT_PRESENT;
+ return PC_BOUNDS_INVALID;
/* Found consecutive range of addresses. */
ret = PC_BOUNDS_HIGH_LOW;
@@ -12089,15 +12103,17 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
/* Value of the DW_AT_ranges attribute is the offset in the
.debug_ranges section. */
if (!dwarf2_ranges_read (ranges_offset, &low, &high, cu, pst))
- return PC_BOUNDS_NOT_PRESENT;
+ return PC_BOUNDS_INVALID;
/* Found discontinuous range of addresses. */
ret = PC_BOUNDS_RANGES;
}
+ else
+ return PC_BOUNDS_NOT_PRESENT;
}
/* read_partial_die has also the strict LOW < HIGH requirement. */
if (high <= low)
- return PC_BOUNDS_NOT_PRESENT;
+ return PC_BOUNDS_INVALID;
/* When using the GNU linker, .gnu.linkonce. sections are used to
eliminate duplicate copies of functions and vtables and such.
@@ -12108,7 +12124,7 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
If this is a discarded function, mark the pc bounds as invalid,
so that GDB will ignore it. */
if (low == 0 && !dwarf2_per_objfile->has_section_at_zero)
- return PC_BOUNDS_NOT_PRESENT;
+ return PC_BOUNDS_INVALID;
*lowpc = low;
if (highpc)
@@ -12129,8 +12145,7 @@ dwarf2_get_subprogram_pc_bounds (struct die_info *die,
CORE_ADDR low, high;
struct die_info *child = die->child;
- if (dwarf2_get_pc_bounds (die, &low, &high, cu, NULL)
- != PC_BOUNDS_NOT_PRESENT)
+ if (dwarf2_get_pc_bounds (die, &low, &high, cu, NULL) >= PC_BOUNDS_RANGES)
{
*lowpc = min (*lowpc, low);
*highpc = max (*highpc, high);
@@ -12168,7 +12183,7 @@ get_scope_pc_bounds (struct die_info *die,
CORE_ADDR current_low, current_high;
if (dwarf2_get_pc_bounds (die, &current_low, &current_high, cu, NULL)
- != PC_BOUNDS_NOT_PRESENT)
+ >= PC_BOUNDS_RANGES)
{
best_low = current_low;
best_high = current_high;
### a/gdb/testsuite/ChangeLog
### b/gdb/testsuite/ChangeLog
## -1,3 +1,9 @@
+2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ PR c++/15231
+ * gdb.ada/out_of_line_in_inlined.exp: Remove xfails.
+ * gdb.dwarf2/dw2-lexical-block-bare.exp: New file.
+
2016-05-27 Pedro Alves <palves@redhat.com>
* gdb.threads/attach-many-short-lived-threads.exp (bad_dejagnu):
--- a/gdb/testsuite/gdb.ada/out_of_line_in_inlined.exp
+++ b/gdb/testsuite/gdb.ada/out_of_line_in_inlined.exp
@@ -23,20 +23,14 @@ if {[gdb_compile_ada "${srcfile}" "${binfile}" executable {debug optimize=-O2}]
clean_restart ${testfile}
-# GCC currently is missing a DW_AT_origin attribute in one of the
-# lexical blocks, preventing GDB from creating a symbol for the
-# subprogram we want to break on.
-setup_xfail "*-*-*"
gdb_test "break foo_o224_021.child1.child2" \
"Breakpoint \[0-9\]+ at.*: file .*foo_o224_021.adb, line \[0-9\]+."
gdb_run_cmd
-setup_xfail "*-*-*"
gdb_test "" \
"Breakpoint $decimal, foo_o224_021\\.child1\\.child2 \\(s=\\.\\.\\.\\).*"
set opt_addr_in "($hex in)?"
-setup_xfail "*-*-*"
gdb_test "bt" \
[multi_line "#0 +$opt_addr_in +foo_o224_021\\.child1\\.child2 \\(s=\\.\\.\\.\\).*" \
"#1 +$opt_addr_in +foo_o224_021\\.child1 \\(\\).*" \
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/dw2-lexical-block-bare.exp
@@ -0,0 +1,70 @@
+# Copyright 2016 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+load_lib dwarf.exp
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+if {![dwarf2_support]} {
+ return 0
+}
+
+standard_testfile .S main.c
+
+# Make some DWARF for the test.
+set asm_file [standard_output_file $srcfile]
+Dwarf::assemble $asm_file {
+ cu {} {
+ compile_unit {
+ {low_pc [gdb_target_symbol main] DW_FORM_addr}
+ {high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
+ } {
+ declare_labels integer_label
+
+ integer_label: DW_TAG_base_type {
+ {DW_AT_byte_size 4 DW_FORM_sdata}
+ {DW_AT_encoding @DW_ATE_signed}
+ {DW_AT_name integer}
+ }
+
+ DW_TAG_subprogram {
+ {name main}
+ {DW_AT_external 1 flag}
+ {low_pc [gdb_target_symbol main] DW_FORM_addr}
+ {high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
+ } {
+ DW_TAG_lexical_block {
+ } {
+ DW_TAG_variable {
+ {DW_AT_name testvar}
+ {DW_AT_type :$integer_label}
+ {DW_AT_external 1 flag}
+ {DW_AT_location {
+ DW_OP_addr [gdb_target_symbol main]
+ } SPECIAL_expr}
+ }
+ }
+ }
+ }
+ }
+}
+
+if { [prepare_for_testing ${testfile}.exp ${testfile} \
+ [list $srcfile2 $asm_file] {nodebug}] } {
+ return -1
+}
+
+runto_main
+
+# FAILing GDB did print: No symbol "testvar" in current context.
+gdb_test "p testvar" { = -?[0-9]+}
--
2.5.5

11
gdb.spec
View File

@ -27,7 +27,7 @@ Version: 7.11
# The release always contains a leading reserved number, start it at 1.
# `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
Release: 73%{?dist}
Release: 74%{?dist}
License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and BSD and Public Domain and GFDL
Group: Development/Debuggers
@ -570,6 +570,10 @@ Patch1120: gdb-testsuite-dw2-undefined-ret-addr.patch
# New test for Python "Cannot locate object file for block" (for RH BZ 1325795).
Patch1123: gdb-rhbz1325795-framefilters-test.patch
# Import bare DW_TAG_lexical_block (RH BZ 1325396).
Patch1128: gdb-bare-DW_TAG_lexical_block-1of2.patch
Patch1129: gdb-bare-DW_TAG_lexical_block-2of2.patch
%if 0%{!?rhel:1} || 0%{?rhel} > 6
# RL_STATE_FEDORA_GDB would not be found for:
# Patch642: gdb-readline62-ask-more-rh.patch
@ -882,6 +886,8 @@ find -name "*.info*"|xargs rm -f
%patch1118 -p1
%patch1120 -p1
%patch1123 -p1
%patch1128 -p1
%patch1129 -p1
%patch1075 -p1
%if 0%{?rhel:1} && 0%{?rhel} <= 7
@ -1401,6 +1407,9 @@ then
fi
%changelog
* Mon May 30 2016 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.11-74.fc24
- Import bare DW_TAG_lexical_block (RH BZ 1325396).
* Tue May 3 2016 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.11-73.fc24
- Fix compilation error by upstream symfile.c fix.