package/boot/uboot-layerscape/patches/010-fix_dtc_compilation_on_host_gcc10.patch

   1 From e33a814e772cdc36436c8c188d8c42d019fda639 Mon Sep 17 00:00:00 2001
   2 From: Dirk Mueller <dmueller@suse.com>
   3 Date: Tue, 14 Jan 2020 18:53:41 +0100
   4 Subject: [PATCH] scripts/dtc: Remove redundant YYLOC global declaration
   5
   6 gcc 10 will default to -fno-common, which causes this error at link
   7 time:
   8
   9   (.text+0x0): multiple definition of `yylloc'; dtc-lexer.lex.o (symbol from plugin):(.text+0x0): first defined here
  10
  11 This is because both dtc-lexer as well as dtc-parser define the same
  12 global symbol yyloc. Before with -fcommon those were merged into one
  13 defintion. The proper solution would be to to mark this as "extern",
  14 however that leads to:
  15
  16   dtc-lexer.l:26:16: error: redundant redeclaration of 'yylloc' [-Werror=redundant-decls]
  17    26 | extern YYLTYPE yylloc;
  18       |                ^~~~~~
  19 In file included from dtc-lexer.l:24:
  20 dtc-parser.tab.h:127:16: note: previous declaration of 'yylloc' was here
  21   127 | extern YYLTYPE yylloc;
  22       |                ^~~~~~
  23 cc1: all warnings being treated as errors
  24
  25 which means the declaration is completely redundant and can just be
  26 dropped.
  27
  28 Signed-off-by: Dirk Mueller <dmueller@suse.com>
  29 Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
  30 [robh: cherry-pick from upstream]
  31 Cc: stable@vger.kernel.org
  32 Signed-off-by: Rob Herring <robh@kernel.org>
  33 ---
  34  scripts/dtc/dtc-lexer.l | 1 -
  35  1 file changed, 1 deletion(-)
  36
  37 --- a/scripts/dtc/dtc-lexer.l
  38 +++ b/scripts/dtc/dtc-lexer.l
  39 @@ -38,7 +38,6 @@ LINECOMMENT   "//".*\n
  40  #include "srcpos.h"
  41  #include "dtc-parser.tab.h"
  42
  43 -YYLTYPE yylloc;
  44  extern bool treesource_error;
  45
  46  /* CAUTION: this will stop working if we ever use yyless() or yyunput() */