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5612bf3339
The generated parser had warnings regarding signess and return check which makes Linux Kernel's perf tool from 3.4 release to fail without those patches. (From OE-Core rev: f3d7197252d1ede627a561fbd5b3b7fb759bf75b) Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
60 lines
1.8 KiB
Diff
60 lines
1.8 KiB
Diff
Wrap ECHO macro to avoid FORTIFY warnings
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This change will enable flex scanners to be compiled with
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-D_FORTIFY_SOURCE=2.
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Signed-off-by: Manoj Srivastava <srivasta@debian.org>
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Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
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Origin: Cherry picked from Debian
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Upstream-Status: Pending
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---
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flex.skl | 2 +-
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scan.c | 2 +-
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skel.c | 2 +-
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3 files changed, 3 insertions(+), 3 deletions(-)
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diff --git a/flex.skl b/flex.skl
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index 6ebf2fd..eaa355e 100644
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--- a/flex.skl
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+++ b/flex.skl
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@@ -1074,7 +1074,7 @@ m4_ifdef( [[M4_YY_NOT_IN_HEADER]],
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/* This used to be an fputs(), but since the string might contain NUL's,
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* we now use fwrite().
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*/
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-#define ECHO fwrite( yytext, yyleng, 1, yyout )
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+#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
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%endif
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%if-c++-only C++ definition
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#define ECHO LexerOutput( yytext, yyleng )
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diff --git a/scan.c b/scan.c
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index d7f5db3..1a079bf 100644
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--- a/scan.c
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+++ b/scan.c
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@@ -2093,7 +2093,7 @@ static int input (void );
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/* This used to be an fputs(), but since the string might contain NUL's,
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* we now use fwrite().
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*/
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-#define ECHO fwrite( yytext, yyleng, 1, yyout )
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+#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
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#endif
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/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
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diff --git a/skel.c b/skel.c
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index ee9f6ef..b8a2b4b 100644
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--- a/skel.c
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+++ b/skel.c
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@@ -1141,7 +1141,7 @@ const char *skel[] = {
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"/* This used to be an fputs(), but since the string might contain NUL's,",
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" * we now use fwrite().",
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" */",
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- "#define ECHO fwrite( yytext, yyleng, 1, yyout )",
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+ "#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)",
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"%endif",
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"%if-c++-only C++ definition",
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"#define ECHO LexerOutput( yytext, yyleng )",
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--
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1.7.9.5
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