gdb/gdb-rhbz2233965-memory-leak.patch
Tom de Vries 4a53ebe1ed - Patch added (swo#31524, bsc#1222188):
* make-pascal_language-print_type-handle-varstring-nul.patch
- Renable gcc-fortran for SLE-11.
- Use system compiler (gcc 4.3.4) for testing all languages on
  SLE-11.
- Maintenance script qa.sh:
  * Ignore all fails for SLE-11.
- Maintenance script import-fedora.sh:
  * Use %patch -P N instead of deprecated %patchN.
  * Drop patch skips:
    * gdb-6.5-readline-long-line-crash-test.patch
    * gdb-6.7-charsign-test.patch
    * gdb-test-ivy-bridge.patch
    * gdb-ppc-power7-test.patch
    * gdb-6.3-bz140532-ppc-unwinding-test.patch
- Patches added (import from fedora rawhide @ a27201b):
  * gdb-bz2196395-debuginfod-legacy-openssl-crash.patch
  * gdb-rhbz-2232086-cpp-ify-mapped-symtab.patch
  * gdb-rhbz-2232086-generate-dwarf-5-index-consistently.patch
  * gdb-rhbz-2232086-generate-gdb-index-consistently.patch
  * gdb-rhbz-2232086-reduce-size-of-gdb-index.patch
  * gdb-rhbz2232086-refactor-selftest-support.patch
- Patches updated (import from fedora rawhide @ a27201b):
  * gdb-6.6-buildid-locate-rpm.patch
  * gdb-6.6-buildid-locate.patch
  * gdb-fedora-libncursesw.patch
  * gdb-rhbz2233961-CVE-2022-4806.patch
  * gdb-rhbz2233965-memory-leak.patch
- Patches updated:  
  * gdb-6.6-buildid-locate-rpm-suse.patch
- Patches deleted (import from fedora rawhide @ a27201b):
  * gdb-rhbz1553104-s390x-arch12-test.patch
  * gdb-lineno-makeup-test.patch
  * gdb-6.3-bz202689-exec-from-pthread-test.patch
  * gdb-6.5-bz109921-DW_AT_decl_file-test.patch
  * gdb-6.5-ia64-libunwind-leak-test.patch
  * gdb-6.5-last-address-space-byte-test.patch
  * gdb-6.5-missed-trap-on-step-test.patch
  * gdb-6.5-sharedlibrary-path.patch
  * gdb-6.7-testsuite-stable-results.patch
  * gdb-6.8-bz442765-threaded-exec-test.patch
  * gdb-ccache-workaround.patch
  * gdb-opcodes-clflushopt-test.patch
  * gdb-rhbz1186476-internal-error-unqualified-name-re-set-test.patch
  * gdb-rhbz1350436-type-printers-error.patch
  * gdb-rhbz2196395-debuginfod-legacy-openssl-crash.patch
  * gdb-rhel5.9-testcase-xlf-var-inside-mod.patch
  * gdb-test-pid0-core.patch
- Patches deleted:
  * fixup-gdb-rhbz1553104-s390x-arch12-test.patch
  * fixup-2-gdb-rhbz1553104-s390x-arch12-test.patch
  * fixup-gdb-lineno-makeup-test.patch
  * fixup-gdb-6.6-buildid-locate-rpm.patch
- Remove commented out mention of dropped patch
  gdb-fix-selftest-fails-with-gdb-build-with-O2-flto.patch.

OBS-URL: https://build.opensuse.org/package/show/devel:gcc/gdb?expand=0&rev=383
2024-04-24 09:31:51 +00:00

116 lines
3.5 KiB
Diff

From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexandra=20H=C3=A1jkov=C3=A1?= <ahajkova@redhat.com>
Date: Sun, 1 Oct 2023 10:36:06 +0200
Subject: gdb-rhbz2233965-memory-leak.patch
;; Backport PR29925, Memory leak in find_abstract_instance
PR29925, Memory leak in find_abstract_instance
The testcase in the PR had a variable with both DW_AT_decl_file and
DW_AT_specification, where the DW_AT_specification also specified
DW_AT_decl_file. This leads to a memory leak as the file name is
malloced and duplicates are not expected.
I've also changed find_abstract_instance to not use a temp for "name",
because that can result in a change in behaviour from the usual last
of duplicate attributes wins.
PR 29925
* dwarf2.c (find_abstract_instance): Delete "name" variable.
Free *filename_ptr before assigning new file name.
(scan_unit_for_symbols): Similarly free func->file and
var->file before assigning.
diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c
--- a/bfd/dwarf2.c
+++ b/bfd/dwarf2.c
@@ -3441,7 +3441,6 @@ find_abstract_instance (struct comp_unit *unit,
struct abbrev_info *abbrev;
uint64_t die_ref = attr_ptr->u.val;
struct attribute attr;
- const char *name = NULL;
if (recur_count == 100)
{
@@ -3602,9 +3601,9 @@ find_abstract_instance (struct comp_unit *unit,
case DW_AT_name:
/* Prefer DW_AT_MIPS_linkage_name or DW_AT_linkage_name
over DW_AT_name. */
- if (name == NULL && is_str_form (&attr))
+ if (*pname == NULL && is_str_form (&attr))
{
- name = attr.u.str;
+ *pname = attr.u.str;
if (mangle_style (unit->lang) == 0)
*is_linkage = true;
}
@@ -3612,7 +3611,7 @@ find_abstract_instance (struct comp_unit *unit,
case DW_AT_specification:
if (is_int_form (&attr)
&& !find_abstract_instance (unit, &attr, recur_count + 1,
- &name, is_linkage,
+ pname, is_linkage,
filename_ptr, linenumber_ptr))
return false;
break;
@@ -3622,7 +3621,7 @@ find_abstract_instance (struct comp_unit *unit,
non-string forms into these attributes. */
if (is_str_form (&attr))
{
- name = attr.u.str;
+ *pname = attr.u.str;
*is_linkage = true;
}
break;
@@ -3630,8 +3629,11 @@ find_abstract_instance (struct comp_unit *unit,
if (!comp_unit_maybe_decode_line_info (unit))
return false;
if (is_int_form (&attr))
- *filename_ptr = concat_filename (unit->line_table,
- attr.u.val);
+ {
+ free (*filename_ptr);
+ *filename_ptr = concat_filename (unit->line_table,
+ attr.u.val);
+ }
break;
case DW_AT_decl_line:
if (is_int_form (&attr))
@@ -3643,7 +3645,6 @@ find_abstract_instance (struct comp_unit *unit,
}
}
}
- *pname = name;
return true;
}
@@ -4139,8 +4140,11 @@ scan_unit_for_symbols (struct comp_unit *unit)
case DW_AT_decl_file:
if (is_int_form (&attr))
- func->file = concat_filename (unit->line_table,
- attr.u.val);
+ {
+ free (func->file);
+ func->file = concat_filename (unit->line_table,
+ attr.u.val);
+ }
break;
case DW_AT_decl_line:
@@ -4182,8 +4186,11 @@ scan_unit_for_symbols (struct comp_unit *unit)
case DW_AT_decl_file:
if (is_int_form (&attr))
- var->file = concat_filename (unit->line_table,
- attr.u.val);
+ {
+ free (var->file);
+ var->file = concat_filename (unit->line_table,
+ attr.u.val);
+ }
break;
case DW_AT_decl_line: