diff options
Diffstat (limited to 'meta/recipes-devtools/gdb/gdb/0008-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch')
-rw-r--r-- | meta/recipes-devtools/gdb/gdb/0008-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/meta/recipes-devtools/gdb/gdb/0008-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch b/meta/recipes-devtools/gdb/gdb/0008-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch index 3e29327613..566b910648 100644 --- a/meta/recipes-devtools/gdb/gdb/0008-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch +++ b/meta/recipes-devtools/gdb/gdb/0008-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch | |||
@@ -1,11 +1,11 @@ | |||
1 | From 48906e1038e469b429aa35d0f967730a929c3880 Mon Sep 17 00:00:00 2001 | 1 | From e649db1664af981cc87f966aef6c5365ae234547 Mon Sep 17 00:00:00 2001 |
2 | From: Khem Raj <raj.khem@gmail.com> | 2 | From: Khem Raj <raj.khem@gmail.com> |
3 | Date: Sun, 15 Jan 2023 00:16:25 -0800 | 3 | Date: Sun, 15 Jan 2023 00:16:25 -0800 |
4 | Subject: [PATCH 8/8] Define alignof using _Alignof when using C11 or newer | 4 | Subject: [PATCH] Define alignof using _Alignof when using C11 or newer |
5 | 5 | ||
6 | WG14 N2350 made very clear that it is an UB having type definitions | 6 | WG14 N2350 made very clear that it is an UB having type definitions |
7 | within "offsetof" [1]. This patch enhances the implementation of macro | 7 | within "offsetof" [1]. This patch enhances the implementation of macro |
8 | alignof_slot to use builtin "_Alignof" to avoid undefined behavior on | 8 | alignof to use builtin "_Alignof" to avoid undefined behavior on |
9 | when using std=c11 or newer | 9 | when using std=c11 or newer |
10 | 10 | ||
11 | clang 16+ has started to flag this [2] | 11 | clang 16+ has started to flag this [2] |
@@ -15,14 +15,10 @@ Fixes build when using -std >= gnu11 and using clang16+ | |||
15 | Older compilers gcc < 4.9 or clang < 8 has buggy _Alignof even though it | 15 | Older compilers gcc < 4.9 or clang < 8 has buggy _Alignof even though it |
16 | may support C11, exclude those compilers too | 16 | may support C11, exclude those compilers too |
17 | 17 | ||
18 | gnulib needs this fix and then it will be applied to downstream packages | ||
19 | like gdb [3] | ||
20 | |||
21 | [1] https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2350.htm | 18 | [1] https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2350.htm |
22 | [2] https://reviews.llvm.org/D133574 | 19 | [2] https://reviews.llvm.org/D133574 |
23 | [3] https://public-inbox.org/bug-gnulib/20230114232744.215167-1-raj.khem@gmail.com/T/#u | ||
24 | 20 | ||
25 | Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=2d404c7dd974cc65f894526f4a1b76bc1dcd8d82] | 21 | Upstream-Status: Pending |
26 | Signed-off-by: Khem Raj <raj.khem@gmail.com> | 22 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
27 | --- | 23 | --- |
28 | libiberty/sha1.c | 10 ++++++++++ | 24 | libiberty/sha1.c | 10 ++++++++++ |
@@ -50,6 +46,3 @@ index 504f06d3b9b..790ada82443 100644 | |||
50 | # define UNALIGNED_P(p) (((size_t) p) % alignof (sha1_uint32) != 0) | 46 | # define UNALIGNED_P(p) (((size_t) p) % alignof (sha1_uint32) != 0) |
51 | if (UNALIGNED_P (buffer)) | 47 | if (UNALIGNED_P (buffer)) |
52 | while (len > 64) | 48 | while (len > 64) |
53 | -- | ||
54 | 2.39.0 | ||
55 | |||