* [PATCH] Remove redundant YYLOC global declaration
@ 2020-01-14 17:53 Dirk Mueller
[not found] ` <20200114175341.2994-1-dmueller-IBi9RG/b67k@public.gmane.org>
0 siblings, 1 reply; 4+ messages in thread
From: Dirk Mueller @ 2020-01-14 17:53 UTC (permalink / raw)
To: devicetree-compiler-u79uwXL29TY76Z2rM5mHXA, dmueller-IBi9RG/b67k
gcc 10 will default to -fno-common, which causes this error at link
time:
(.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
This is because both dtc-lexer as well as dtc-parser define the same
global symbol yyloc. Before with -fcommon those were merged into one
defintion. The proper solution would be to to mark this as "extern",
however that leads to:
dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
26 | extern YYLTYPE yylloc;
| ^~~~~~
In file included from dtc-lexer.l:24:
dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
127 | extern YYLTYPE yylloc;
| ^~~~~~
cc1: all warnings being treated as errors
which means the declaration is completely redundant and can just be
dropped.
Signed-off-by: Dirk Mueller <dmueller-IBi9RG/b67k@public.gmane.org>
---
dtc-lexer.l | 1 -
1 file changed, 1 deletion(-)
diff --git a/dtc-lexer.l b/dtc-lexer.l
index 5c6c3fd..b3b7270 100644
--- a/dtc-lexer.l
+++ b/dtc-lexer.l
@@ -23,7 +23,6 @@ LINECOMMENT "//".*\n
#include "srcpos.h"
#include "dtc-parser.tab.h"
-YYLTYPE yylloc;
extern bool treesource_error;
/* CAUTION: this will stop working if we ever use yyless() or yyunput() */
--
2.24.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] Remove redundant YYLOC global declaration
[not found] ` <20200114175341.2994-1-dmueller-IBi9RG/b67k@public.gmane.org>
@ 2020-01-16 1:33 ` David Gibson
0 siblings, 0 replies; 4+ messages in thread
From: David Gibson @ 2020-01-16 1:33 UTC (permalink / raw)
To: Dirk Mueller; +Cc: devicetree-compiler-u79uwXL29TY76Z2rM5mHXA
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On Tue, Jan 14, 2020 at 06:53:41PM +0100, Dirk Mueller wrote:
> gcc 10 will default to -fno-common, which causes this error at link
> time:
>
> (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
>
> This is because both dtc-lexer as well as dtc-parser define the same
> global symbol yyloc. Before with -fcommon those were merged into one
> defintion. The proper solution would be to to mark this as "extern",
> however that leads to:
>
> dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
> 26 | extern YYLTYPE yylloc;
> | ^~~~~~
> In file included from dtc-lexer.l:24:
> dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
> 127 | extern YYLTYPE yylloc;
> | ^~~~~~
> cc1: all warnings being treated as errors
>
> which means the declaration is completely redundant and can just be
> dropped.
>
> Signed-off-by: Dirk Mueller <dmueller-IBi9RG/b67k@public.gmane.org>
Applied, thanks.
> ---
> dtc-lexer.l | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/dtc-lexer.l b/dtc-lexer.l
> index 5c6c3fd..b3b7270 100644
> --- a/dtc-lexer.l
> +++ b/dtc-lexer.l
> @@ -23,7 +23,6 @@ LINECOMMENT "//".*\n
> #include "srcpos.h"
> #include "dtc-parser.tab.h"
>
> -YYLTYPE yylloc;
> extern bool treesource_error;
>
> /* CAUTION: this will stop working if we ever use yyless() or yyunput() */
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] Remove redundant YYLOC global declaration
2020-01-30 9:37 Peter Robinson
@ 2020-01-31 1:42 ` Tom Rini
0 siblings, 0 replies; 4+ messages in thread
From: Tom Rini @ 2020-01-31 1:42 UTC (permalink / raw)
To: u-boot
On Thu, Jan 30, 2020 at 09:37:15AM +0000, Peter Robinson wrote:
> Same as the upstream fix for building dtc with gcc 10.
>
> Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Applied to u-boot/master, thanks!
--
Tom
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] Remove redundant YYLOC global declaration
@ 2020-01-30 9:37 Peter Robinson
2020-01-31 1:42 ` Tom Rini
0 siblings, 1 reply; 4+ messages in thread
From: Peter Robinson @ 2020-01-30 9:37 UTC (permalink / raw)
To: u-boot
Same as the upstream fix for building dtc with gcc 10.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
---
The upstream patch is accepted, thread here:
https://www.spinics.net/lists/devicetree-compiler/msg02959.html
scripts/dtc/dtc-lexer.l | 1 -
1 file changed, 1 deletion(-)
diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l
index fd825ebba6..24af549977 100644
--- a/scripts/dtc/dtc-lexer.l
+++ b/scripts/dtc/dtc-lexer.l
@@ -38,7 +38,6 @@ LINECOMMENT "//".*\n
#include "srcpos.h"
#include "dtc-parser.tab.h"
-YYLTYPE yylloc;
extern bool treesource_error;
/* CAUTION: this will stop working if we ever use yyless() or yyunput() */
--
2.24.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-01-31 1:42 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-01-14 17:53 [PATCH] Remove redundant YYLOC global declaration Dirk Mueller
[not found] ` <20200114175341.2994-1-dmueller-IBi9RG/b67k@public.gmane.org>
2020-01-16 1:33 ` David Gibson
2020-01-30 9:37 Peter Robinson
2020-01-31 1:42 ` Tom Rini
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