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From: Tsukasa OI <research_trasio@irq.a4lg.com>
To: Tsukasa OI <research_trasio@irq.a4lg.com>,
	Andrew Burgess <aburgess@redhat.com>,
	Mike Frysinger <vapier@gentoo.org>,
	Nick Clifton <nickc@redhat.com>
Cc: gdb-patches@sourceware.org
Subject: [PATCH 01/40] gdb/unittests: PR28413, suppress warnings generated by Gnulib
Date: Thu, 20 Oct 2022 09:32:06 +0000	[thread overview]
Message-ID: <8b99d666e78ba5b9d32c7889a2161c70b3da88df.1666258361.git.research_trasio@irq.a4lg.com> (raw)
In-Reply-To: <cover.1666258361.git.research_trasio@irq.a4lg.com>

Gnulib generates a warning if the system version of certain functions
are used (to redirect the developer to use Gnulib version).  It caused a
compiler error when...

-   Compiled with Clang
-   -Werror is specified (by default)
-   C++ standard used by Clang is before C++17 (by default as of 15.0.0)
    when this unit test is activated.

This issue is raised as PR28413.

However, previous proposal to fix this issue (a "fix" to Gnulib):
<https://lists.gnu.org/archive/html/bug-gnulib/2021-10/msg00003.html>
was rejected because it ruins the intent of Gnulib warnings.

So, we need a Binutils/GDB-side solution.

This commit tries to address this issue on the GDB side.  We have
"include/diagnostics.h" to disable certain warnings only when necessary.

This commit suppresses the Gnulib warnings by surrounding entire #include
block with DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS to disable Gnulib-
generated warnings on all standard C++ header files.
---
 gdb/unittests/string_view-selftests.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gdb/unittests/string_view-selftests.c b/gdb/unittests/string_view-selftests.c
index 2d7261d18d3..441d533b54e 100644
--- a/gdb/unittests/string_view-selftests.c
+++ b/gdb/unittests/string_view-selftests.c
@@ -23,6 +23,11 @@
 
 #define GNULIB_NAMESPACE gnulib
 
+#include "diagnostics.h"
+
+DIAGNOSTIC_PUSH
+DIAGNOSTIC_IGNORE_USER_DEFINED_WARNINGS
+
 #include "defs.h"
 #include "gdbsupport/selftest.h"
 #include "gdbsupport/gdb_string_view.h"
@@ -34,6 +39,8 @@
 #include <fstream>
 #include <iostream>
 
+DIAGNOSTIC_POP
+
 /* libstdc++'s testsuite uses VERIFY.  */
 #define VERIFY SELF_CHECK
 
-- 
2.34.1


  reply	other threads:[~2022-10-20  9:33 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-20  9:32 [PATCH 00/40] sim+gdb: Suppress warnings if built with Clang (big batch 1) Tsukasa OI
2022-10-20  9:32 ` Tsukasa OI [this message]
2022-11-14 14:01   ` [PATCH 01/40] gdb/unittests: PR28413, suppress warnings generated by Gnulib Simon Marchi
2022-10-20  9:32 ` [PATCH 02/40] sim: Check known getrusage declaration existence Tsukasa OI
2022-10-23 13:59   ` Mike Frysinger
2022-10-24 10:47     ` Tsukasa OI
2022-10-24 16:03       ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 03/40] sim/aarch64: Remove unused functions Tsukasa OI
2022-10-23 14:02   ` Mike Frysinger
2022-10-24 10:55     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 04/40] cpu/cris: Initialize some variables on CRIS CPU Tsukasa OI
2022-10-20  9:32 ` [PATCH 05/40] cpu/cris: Add u-stall virtual unit to CRIS v32 Tsukasa OI
2022-10-20  9:32 ` [PATCH 06/40] sim/cris: Move declarations of f_specific_init Tsukasa OI
2022-10-23 14:26   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 07/40] sim/cris: Regenerate with CGEN Tsukasa OI
2022-10-23 14:27   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 08/40] sim/erc32: Insert void parameter Tsukasa OI
2022-10-23 14:04   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 09/40] sim/erc32: Use int32_t as event callback argument Tsukasa OI
2022-10-23 14:32   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 10/40] sim/erc32: Use int32_t as IRQ " Tsukasa OI
2022-10-23 14:33   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 11/40] cpu/frv: Initialize some variables Tsukasa OI
2022-10-20  9:32 ` [PATCH 12/40] sim/frv: Initialize nesr variable Tsukasa OI
2022-10-23 14:39   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 13/40] sim/frv: Initialize some variables Tsukasa OI
2022-10-23 14:34   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 14/40] sim/frv: Add explicit casts Tsukasa OI
2022-10-23 14:40   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 15/40] sim/h8300: Add "+ 0x0" to avoid self-assignments Tsukasa OI
2022-10-23 14:05   ` Mike Frysinger
2022-10-24 10:55     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 16/40] sim/lm32: fix some missing function declaration warnings Tsukasa OI
2022-10-23 14:41   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 17/40] sim/lm32: Add explicit casts Tsukasa OI
2022-10-23 14:42   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 18/40] sim/m32c: Stop using middle dot Tsukasa OI
2022-10-23 14:48   ` Mike Frysinger
2022-10-27  2:08     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 19/40] sim/m32r: Initialize "list" variable Tsukasa OI
2022-10-23 14:50   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 20/40] sim/m32r: Prepare required functions Tsukasa OI
2022-10-23 14:53   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 21/40] sim/m32r: Declare all " Tsukasa OI
2022-10-23 14:54   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 22/40] sim/m32r: Fixes to Linux emulator Tsukasa OI
2022-10-23 14:56   ` Mike Frysinger
2022-10-27  2:40     ` Tsukasa OI
2022-10-27 16:05       ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 23/40] sim/m32r: Add explicit casts Tsukasa OI
2022-10-23 14:57   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 24/40] sim/mips: Fix enum type-related issues on cp1.c Tsukasa OI
2022-10-23 15:00   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 25/40] sim/mn10300: Add an explicit cast Tsukasa OI
2022-10-23 15:03   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 26/40] sim/ppc: Remove getrusage declarations if possible Tsukasa OI
2022-10-23 15:04   ` Mike Frysinger
2022-10-27  2:00     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 27/40] sim/ppc: Add extra parenthesis to avoid ambiguity Tsukasa OI
2022-10-23 15:05   ` Mike Frysinger
2022-10-24 10:59     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 28/40] sim/ppc: Initialize stat type buffer Tsukasa OI
2022-10-23 15:06   ` Mike Frysinger
2022-10-24 11:00     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 29/40] sim/ppc: Fix indentation on generated code Tsukasa OI
2022-10-23 15:07   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 30/40] sim/ppc: Use TRACE with initialized entry_point Tsukasa OI
2022-10-23 15:08   ` Mike Frysinger
2022-10-24 11:02     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 31/40] sim/ppc: Initialize help variables Tsukasa OI
2022-10-23 15:08   ` Mike Frysinger
2022-10-24 16:33   ` Andrew Burgess
2022-10-20  9:32 ` [PATCH 32/40] sim/ppc: Add an explicit cast Tsukasa OI
2022-10-23 15:10   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 33/40] sim/ppc: Initialize reg and control_nr Tsukasa OI
2022-10-23 15:14   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 34/40] sim/rx: Mark unused function Tsukasa OI
2022-10-23 15:14   ` Mike Frysinger
2022-10-24 16:30   ` Andrew Burgess
2022-10-29 11:58     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 35/40] sim/sh: Initialize some variables Tsukasa OI
2022-10-23 15:19   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 36/40] sim/sh: Use fabs instead of abs Tsukasa OI
2022-10-23 14:17   ` Mike Frysinger
2022-10-24 10:56     ` Tsukasa OI
2022-10-20  9:32 ` [PATCH 37/40] sim/sh: Remove redundant function declaration Tsukasa OI
2022-10-23 14:19   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 38/40] sim/bpf: Add explicit casts Tsukasa OI
2022-10-23 15:15   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 39/40] sim/iq2000: " Tsukasa OI
2022-10-23 15:16   ` Mike Frysinger
2022-10-20  9:32 ` [PATCH 40/40] sim/or1k: " Tsukasa OI
2022-10-23 15:16   ` Mike Frysinger

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