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* [binutils-gdb] [gdb/build] Fix gdb build with gcc 4.8.5
@ 2022-07-14 8:20 Tom de Vries
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From: Tom de Vries @ 2022-07-14 8:20 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2df41bda2f80a1fbd443c44ee1bd54da579fc8a2
commit 2df41bda2f80a1fbd443c44ee1bd54da579fc8a2
Author: Tom de Vries <tdevries@suse.de>
Date: Thu Jul 14 10:20:16 2022 +0200
[gdb/build] Fix gdb build with gcc 4.8.5
When building gdb with gcc 4.8.5, we run into:
...
In file included from /usr/include/c++/4.8/future:43:0,
from gdbsupport/thread-pool.h:30,
from gdb/dwarf2/cooked-index.h:33,
from gdb/dwarf2/read.h:26,
from gdb/dwarf2/abbrev-cache.c:21:
/usr/include/c++/4.8/atomic: In instantiation of \
‘_Tp std::atomic<_Tp>::load(std::memory_order) const [with _Tp = \
packed<dwarf_unit_type, 1ul>; std::memory_order = std::memory_order]’:
gdb/dwarf2/read.h:332:44: required from here
/usr/include/c++/4.8/atomic:208:13: error: no matching function for call to \
‘packed<dwarf_unit_type, 1ul>::packed()’
_Tp tmp;
^
...
Fix this by adding the default constructor for packed.
Tested on x86_64-linux, with gdb build with gcc 4.8.5.
Diff:
---
gdbsupport/packed.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/gdbsupport/packed.h b/gdbsupport/packed.h
index cd331b5477d..3468cf44207 100644
--- a/gdbsupport/packed.h
+++ b/gdbsupport/packed.h
@@ -31,6 +31,8 @@ template<typename T, size_t Bytes = sizeof (T)>
struct packed
{
public:
+ packed () noexcept = default;
+
packed (T val)
{
m_val = val;
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2022-07-14 8:20 [binutils-gdb] [gdb/build] Fix gdb build with gcc 4.8.5 Tom de Vries
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