From: Roger Pau Monne <roger.pau@citrix.com>
To: <xen-devel@lists.xenproject.org>
Cc: Anthony PERARD <anthony.perard@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>, Wei Liu <wl@xen.org>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: [PATCH 3/3] tools/libxl: disable clang indentation check for the disk parser
Date: Tue, 5 May 2020 11:24:54 +0200 [thread overview]
Message-ID: <20200505092454.9161-4-roger.pau@citrix.com> (raw)
In-Reply-To: <20200505092454.9161-1-roger.pau@citrix.com>
Clang 10 complains with:
13: error: misleading indentation; statement is not part of the previous 'if'
[-Werror,-Wmisleading-indentation]
if ( ! yyg->yy_state_buf )
^
libxlu_disk_l.c:1259:9: note: previous statement is here
if ( ! yyg->yy_state_buf )
^
Due to the missing braces in single line statements and the wrong
indentation. Fix this by disabling the warning for that specific file.
I haven't found a way to force flex to add braces around single line
statements in conditional blocks.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
---
Please re-generate libxlu_disk_l.c before committing.
---
tools/libxl/libxlu_disk_l.l | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/tools/libxl/libxlu_disk_l.l b/tools/libxl/libxlu_disk_l.l
index 97039a2800..7a46f4a30c 100644
--- a/tools/libxl/libxlu_disk_l.l
+++ b/tools/libxl/libxlu_disk_l.l
@@ -36,6 +36,17 @@
#define YY_NO_INPUT
+/* The code generated by flex is missing braces in single line expressions and
+ * is not properly indented, which triggers the clang misleading-indentation
+ * check that has been made part of -Wall since clang 10. In order to safely
+ * disable it on clang versions that don't have the diagnostic implemented
+ * also disable the unknown option and pragma warning. */
+#ifdef __clang__
+# pragma clang diagnostic ignored "-Wunknown-pragmas"
+# pragma clang diagnostic ignored "-Wunknown-warning-option"
+# pragma clang diagnostic ignored "-Wmisleading-indentation"
+#endif
+
/* Some versions of flex have a bug (Fedora bugzilla 612465) which causes
* it to fail to declare these functions, which it defines. So declare
* them ourselves. Hopefully we won't have to simultaneously support
--
2.26.2
next prev parent reply other threads:[~2020-05-05 9:25 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 9:24 [PATCH 0/3] build: fixes for clang 10 Roger Pau Monne
2020-05-05 9:24 ` [PATCH 1/3] x86/mm: do not attempt to convert _PAGE_GNTTAB to a boolean Roger Pau Monne
2020-05-05 13:47 ` Jan Beulich
2020-05-05 14:11 ` Roger Pau Monné
2020-05-05 14:59 ` Jan Beulich
2020-05-05 9:24 ` [PATCH 2/3] configure: also add EXTRA_PREFIX to {CPP/LD}FLAGS Roger Pau Monne
2020-05-06 13:07 ` Wei Liu
2020-05-22 8:41 ` Bertrand Marquis
2020-05-22 9:05 ` Wei Liu
2020-05-22 9:37 ` Bertrand Marquis
2020-05-22 9:59 ` Wei Liu
2020-05-22 11:19 ` Roger Pau Monné
2020-05-22 11:40 ` Bertrand Marquis
2020-05-22 11:41 ` Wei Liu
2020-05-05 9:24 ` Roger Pau Monne [this message]
2020-05-06 13:07 ` [PATCH 3/3] tools/libxl: disable clang indentation check for the disk parser Wei Liu
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