Re: [OE-core] [PATCH v3] gcc: Fix CVE-2021-42574 testcase

Pgowda Thu, 06 Jan 2022 02:43:49 -0800

Hi,

Gentle ping on this patch.


The patch modifies the testcases in UTF-8 format to execute as expected.

Thanks,
Pgowda

On Sat, Dec 25, 2021 at 8:02 PM pgowda <[email protected]> wrote:
>
> Modify the testcases properly to generate expected output.
>
> Upstream-Status: Backport 
> [https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=51c500269bf53749b107807d84271385fad35628]
> Upstream-Status: Backport 
> [https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=bef32d4a28595e933f24fef378cf052a30b674a7]
>
> Signed-off-by: pgowda <[email protected]>
> ---
>  .../gcc/gcc/0002-CVE-2021-42574.patch         | 536 ++++++++----------
>  .../gcc/gcc/0004-CVE-2021-42574.patch         |  20 +-
>  2 files changed, 258 insertions(+), 298 deletions(-)
>
> diff --git a/meta/recipes-devtools/gcc/gcc/0002-CVE-2021-42574.patch 
> b/meta/recipes-devtools/gcc/gcc/0002-CVE-2021-42574.patch
> index 9bad81d4d0..d40735621a 100644
> --- a/meta/recipes-devtools/gcc/gcc/0002-CVE-2021-42574.patch
> +++ b/meta/recipes-devtools/gcc/gcc/0002-CVE-2021-42574.patch
> @@ -142,9 +142,8 @@ Signed-off-by: Pgowda <[email protected]>
>   create mode 100644 gcc/testsuite/c-c++-common/Wbidi-chars-9.c
>
>  diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
> -index 8a4cd634f77..3976fc368db 100644
> ---- a/gcc/c-family/c.opt
> -+++ b/gcc/c-family/c.opt
> +--- a/gcc/c-family/c.opt       2021-12-24 20:36:18.424153360 -0800
> ++++ b/gcc/c-family/c.opt       2021-12-24 20:52:31.835651314 -0800
>  @@ -370,6 +370,30 @@ Wbad-function-cast
>   C ObjC Var(warn_bad_function_cast) Warning
>   Warn about casting functions to incompatible types.
> @@ -177,9 +176,8 @@ index 8a4cd634f77..3976fc368db 100644
>   C ObjC C++ ObjC++ Var(warn_bool_compare) Warning LangEnabledBy(C ObjC C++ 
> ObjC++,Wall)
>   Warn about boolean expression compared with an integer value different from 
> true/false.
>  diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
> -index 6070288856c..a22758d18ee 100644
> ---- a/gcc/doc/invoke.texi
> -+++ b/gcc/doc/invoke.texi
> +--- a/gcc/doc/invoke.texi      2021-12-24 20:36:21.264105609 -0800
> ++++ b/gcc/doc/invoke.texi      2021-12-24 20:52:31.843651178 -0800
>  @@ -326,7 +326,9 @@ Objective-C and Objective-C++ Dialects}.
>   -Warith-conversion @gol
>   -Warray-bounds  -Warray-bounds=@var{n} @gol
> @@ -216,17 +214,15 @@ index 6070288856c..a22758d18ee 100644
>   @opindex Wno-bool-compare
>   @opindex Wbool-compare
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-10.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-10.c
> -new file mode 100644
> -index 00000000000..34f5ac19271
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-10.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-10.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-10.c      2021-12-24 
> 20:53:10.051000540 -0800
>  @@ -0,0 +1,27 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +/* { dg-options "-Wbidi-chars=unpaired" } */
>  +/* More nesting testing.  */
>  +
> -+/* RLEâ« LRIâ¦ PDFâ¬ PDIâ©*/
> ++/* RLE‫ LRI⁦ PDF‬ PDI⁩*/
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int LRE_\u202a_PDF_\u202c;
>  +int LRE_\u202a_PDF_\u202c_LRE_\u202a_PDF_\u202c;
> @@ -249,75 +245,69 @@ index 00000000000..34f5ac19271
>  +int 
> RLI_\u2067_RLI_\u2067_RLI_\u2067_RLI_\u2067_FSI_\u2068_PDI_\u2069_PDI_\u2069_PDI_\u2069_PDI_\u2069;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-11.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-11.c
> -new file mode 100644
> -index 00000000000..270ce2368a9
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-11.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-11.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-11.c      2021-12-24 
> 20:53:10.562991821 -0800
>  @@ -0,0 +1,13 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +/* { dg-options "-Wbidi-chars=unpaired" } */
>  +/* Test that we warn when mixing UCN and UTF-8.  */
>  +
> -+int LRE_âª_PDF_\u202c;
> ++int LRE_‪_PDF_\u202c;
>  +/* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
> -+int LRE_\u202a_PDF_â¬_;
> ++int LRE_\u202a_PDF_‬_;
>  +/* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
> -+const char *s1 = "LRE_âª_PDF_\u202c";
> ++const char *s1 = "LRE_‪_PDF_\u202c";
>  +/* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
> -+const char *s2 = "LRE_\u202a_PDF_â¬";
> ++const char *s2 = "LRE_\u202a_PDF_‬";
>  +/* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-12.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-12.c
> -new file mode 100644
> -index 00000000000..b07eec1da91
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-12.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-12.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-12.c      2021-12-24 
> 20:53:10.890986236 -0800
>  @@ -0,0 +1,19 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile { target { c || c++11 } } } */
>  +/* { dg-options "-Wbidi-chars=any" } */
>  +/* Test raw strings.  */
>  +
> -+const char *s1 = R"(a b c LREâª 1 2 3 PDFâ¬ x y z)";
> ++const char *s1 = R"(a b c LRE‪ 1 2 3 PDF‬ x y z)";
>  +/* { dg-warning "U\\+202A" "" { target *-*-* } .-1 } */
> -+const char *s2 = R"(a b c RLEâ« 1 2 3 PDFâ¬ x y z)";
> ++const char *s2 = R"(a b c RLE‫ 1 2 3 PDF‬ x y z)";
>  +/* { dg-warning "U\\+202B" "" { target *-*-* } .-1 } */
> -+const char *s3 = R"(a b c LROâ 1 2 3 PDFâ¬ x y z)";
> ++const char *s3 = R"(a b c LRO‭ 1 2 3 PDF‬ x y z)";
>  +/* { dg-warning "U\\+202D" "" { target *-*-* } .-1 } */
> -+const char *s4 = R"(a b c RLOâ® 1 2 3 PDFâ¬ x y z)";
> ++const char *s4 = R"(a b c RLO‮ 1 2 3 PDF‬ x y z)";
>  +/* { dg-warning "U\\+202E" "" { target *-*-* } .-1 } */
> -+const char *s7 = R"(a b c FSIâ¨ 1 2 3 PDIâ© x y) z";
> ++const char *s7 = R"(a b c FSI⁨ 1 2 3 PDI⁩ x y) z";
>  +/* { dg-warning "U\\+2068" "" { target *-*-* } .-1 } */
> -+const char *s8 = R"(a b c PDIâ© x y )z";
> ++const char *s8 = R"(a b c PDI⁩ x y )z";
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-1 } */
> -+const char *s9 = R"(a b c PDFâ¬ x y z)";
> ++const char *s9 = R"(a b c PDF‬ x y z)";
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
> -diff -uprN '-x*.orig' '-x*.rej' 
> del/gcc-11.2.0/gcc/testsuite/c-c++-common/Wbidi-chars-13.c 
> gcc-11.2.0/gcc/testsuite/c-c++-common/Wbidi-chars-13.c
> ---- del/gcc-11.2.0/gcc/testsuite/c-c++-common/Wbidi-chars-13.c 1969-12-31 
> 16:00:00.000000000 -0800
> -+++ gcc-11.2.0/gcc/testsuite/c-c++-common/Wbidi-chars-13.c     2021-12-13 
> 23:11:22.328439287 -0800
> +diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-13.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-13.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-13.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-13.c      2021-12-24 
> 20:53:11.190981126 -0800
>  @@ -0,0 +1,17 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile { target { c || c++11 } } } */
>  +/* { dg-options "-Wbidi-chars=unpaired" } */
>  +/* Test raw strings.  */
>  +
> -+const char *s1 = R"(a b c LREâª 1 2 3)";
> ++const char *s1 = R"(a b c LRE‪ 1 2 3)";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+const char *s2 = R"(a b c RLEâ« 1 2 3)";
> ++const char *s2 = R"(a b c RLE‫ 1 2 3)";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+const char *s3 = R"(a b c LROâ 1 2 3)";
> ++const char *s3 = R"(a b c LRO‭ 1 2 3)";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+const char *s4 = R"(a b c FSIâ¨ 1 2 3)";
> ++const char *s4 = R"(a b c FSI⁨ 1 2 3)";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+const char *s5 = R"(a b c LRIâ¦ 1 2 3)";
> ++const char *s5 = R"(a b c LRI⁦ 1 2 3)";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+const char *s6 = R"(a b c RLIâ§ 1 2 3)";
> ++const char *s6 = R"(a b c RLI⁧ 1 2 3)";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-14.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-14.c
> -new file mode 100644
> -index 00000000000..ba5f75d9553
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-14.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-14.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-14.c      2021-12-24 
> 20:53:11.482976153 -0800
>  @@ -0,0 +1,38 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -325,13 +315,13 @@ index 00000000000..ba5f75d9553
>  +/* Test PDI handling, which also pops any subsequent LREs, RLEs, LROs,
>  +   or RLOs.  */
>  +
> -+/* LRI_â¦_LRI_â¦_RLE_â«_RLE_â«_RLE_â«_PDI_â©*/
> ++/* LRI_⁦_LRI_⁦_RLE_‫_RLE_‫_RLE_‫_PDI_⁩*/
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// LRI_â¦_RLE_â«_RLE_â«_RLE_â«_PDI_â©
> -+// LRI_â¦_RLO_â®_RLE_â«_RLE_â«_PDI_â©
> -+// LRI_â¦_RLO_â®_RLE_â«_PDI_â©
> -+// FSI_â¨_RLO_â®_PDI_â©
> -+// FSI_â¨_FSI_â¨_RLO_â®_PDI_â©
> ++// LRI_⁦_RLE_‫_RLE_‫_RLE_‫_PDI_⁩
> ++// LRI_⁦_RLO_‮_RLE_‫_RLE_‫_PDI_⁩
> ++// LRI_⁦_RLO_‮_RLE_‫_PDI_⁩
> ++// FSI_⁨_RLO_‮_PDI_⁩
> ++// FSI_⁨_FSI_⁨_RLO_‮_PDI_⁩
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +int LRI_\u2066_LRI_\u2066_LRE_\u202a_LRE_\u202a_LRE_\u202a_PDI_\u2069;
> @@ -358,10 +348,8 @@ index 00000000000..ba5f75d9553
>  +int FSI_\u2068_FSI_\u2068_PDF_\u202c_PDI_\u2069;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-15.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-15.c
> -new file mode 100644
> -index 00000000000..a0ce8ff5e2c
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-15.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-15.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-15.c      2021-12-24 
> 20:53:11.738971793 -0800
>  @@ -0,0 +1,59 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -369,182 +357,170 @@ index 00000000000..a0ce8ff5e2c
>  +/* Test unpaired bidi control chars in multiline comments.  */
>  +
>  +/*
> -+ * LREâª end
> ++ * LRE‪ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +/*
> -+ * RLEâ« end
> ++ * RLE‫ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +/*
> -+ * LROâ end
> ++ * LRO‭ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +/*
> -+ * RLOâ® end
> ++ * RLO‮ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +/*
> -+ * LRIâ¦ end
> ++ * LRI⁦ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +/*
> -+ * RLIâ§ end
> ++ * RLI⁧ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +/*
> -+ * FSIâ¨ end
> ++ * FSI⁨ end
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
> -+/* LREâª
> -+   PDFâ¬ */
> ++/* LRE‪
> ++   PDF‬ */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
> -+/* FSIâ¨
> -+   PDIâ© */
> ++/* FSI⁨
> ++   PDI⁩ */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +
> -+/* LRE<âª>
> ++/* LRE<‪>
>  + *
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-3 } */
>  +
>  +/*
> -+ * LRE<âª>
> ++ * LRE<‪>
>  + */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +
>  +/*
>  + *
> -+ * LRE<âª> */
> ++ * LRE<‪> */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
> -+/* RLI<â§> */ /* PDI<â©> */
> ++/* RLI<⁧> */ /* PDI<⁩> */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* LRE<âª> */ /* PDF<â¬> */
> ++/* LRE<‪> */ /* PDF<‬> */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-16.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-16.c
> -new file mode 100644
> -index 00000000000..baa0159861c
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-16.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-16.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-16.c      2021-12-24 
> 20:53:11.998967366 -0800
>  @@ -0,0 +1,26 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +/* { dg-options "-Wbidi-chars=any" } */
>  +/* Test LTR/RTL chars.  */
>  +
> -+/* LTR<â> */
> ++/* LTR<‎> */
>  +/* { dg-warning "U\\+200E" "" { target *-*-* } .-1 } */
> -+// LTR<â>
> ++// LTR<‎>
>  +/* { dg-warning "U\\+200E" "" { target *-*-* } .-1 } */
> -+/* RTL<â> */
> ++/* RTL<‏> */
>  +/* { dg-warning "U\\+200F" "" { target *-*-* } .-1 } */
> -+// RTL<â>
> ++// RTL<‏>
>  +/* { dg-warning "U\\+200F" "" { target *-*-* } .-1 } */
>  +
> -+const char *s1 = "LTR<â>";
> ++const char *s1 = "LTR<‎>";
>  +/* { dg-warning "U\\+200E" "" { target *-*-* } .-1 } */
>  +const char *s2 = "LTR\u200e";
>  +/* { dg-warning "U\\+200E" "" { target *-*-* } .-1 } */
>  +const char *s3 = "LTR\u200E";
>  +/* { dg-warning "U\\+200E" "" { target *-*-* } .-1 } */
> -+const char *s4 = "RTL<â>";
> ++const char *s4 = "RTL<‏>";
>  +/* { dg-warning "U\\+200F" "" { target *-*-* } .-1 } */
>  +const char *s5 = "RTL\u200f";
>  +/* { dg-warning "U\\+200F" "" { target *-*-* } .-1 } */
>  +const char *s6 = "RTL\u200F";
>  +/* { dg-warning "U\\+200F" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-17.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-17.c
> -new file mode 100644
> -index 00000000000..07cb4321f96
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-17.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-17.c      1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-17.c      2021-12-24 
> 20:53:12.286962462 -0800
>  @@ -0,0 +1,30 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +/* { dg-options "-Wbidi-chars=unpaired" } */
>  +/* Test LTR/RTL chars.  */
>  +
> -+/* LTR<â> */
> ++/* LTR<‎> */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// LTR<â>
> ++// LTR<‎>
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* RTL<â> */
> ++/* RTL<‏> */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// RTL<â>
> ++// RTL<‏>
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +int ltr_\u200e;
>  +/* { dg-error "universal character " "" { target *-*-* } .-1 } */
>  +int rtl_\u200f;
>  +/* { dg-error "universal character " "" { target *-*-* } .-1 } */
>  +
> -+const char *s1 = "LTR<â>";
> ++const char *s1 = "LTR<‎>";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +const char *s2 = "LTR\u200e";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +const char *s3 = "LTR\u200E";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+const char *s4 = "RTL<â>";
> ++const char *s4 = "RTL<‏>";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +const char *s5 = "RTL\u200f";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +const char *s6 = "RTL\u200F";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-1.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-1.c
> -new file mode 100644
> -index 00000000000..2340374f276
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-1.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-1.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-1.c       2021-12-24 
> 20:53:12.518958510 -0800
>  @@ -0,0 +1,12 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +
>  +int main() {
>  +    int isAdmin = 0;
> -+    /*â® } â¦if (isAdmin)â© â¦ begin admins only */
> ++    /*‮ } ⁦if (isAdmin)⁩ ⁦ begin admins only */
>  +/* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
>  +        __builtin_printf("You are an admin.\n");
> -+    /* end admins only â® { â¦*/
> ++    /* end admins only ‮ { ⁦*/
>  +/* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
>  +    return 0;
>  +}
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-2.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-2.c
> -new file mode 100644
> -index 00000000000..2340374f276
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-2.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-2.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-2.c       2021-12-24 
> 20:53:12.778954082 -0800
>  @@ -0,0 +1,9 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +
>  +int main() {
> -+    /* Say hello; newlineâ§/*/ return 0 ;
> ++    /* Say hello; newline⁧/*/ return 0 ;
>  +/* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
>  +    __builtin_printf("Hello world.\n");
>  +    return 0;
>  +}
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-3.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-3.c
> -new file mode 100644
> -index 00000000000..9dc7edb6e64
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-3.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-3.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-3.c       2021-12-24 
> 20:53:13.038949654 -0800
>  @@ -0,0 +1,11 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
>  +
>  +int main() {
>  +    const char* access_level = "user";
> -+    if (__builtin_strcmp(access_level, "userâ® â¦// Check if adminâ© â¦")) {
> ++    if (__builtin_strcmp(access_level, "user‮ ⁦// Check if admin⁩ ⁦")) {
>  +/* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
>  +        __builtin_printf("You are an admin.\n");
>  +    }
>  +    return 0;
>  +}
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-4.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-4.c
> -new file mode 100644
> -index 00000000000..639e5c62e88
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-4.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-4.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-4.c       2021-12-24 
> 20:53:13.382943796 -0800
>  @@ -0,0 +1,188 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -553,89 +529,89 @@ index 00000000000..639e5c62e88
>  +   string literals, character constants), both UCN and UTF-8.  The bidi
>  +   chars here are properly terminated, except for the character constants.  
> */
>  +
> -+/* a b c LREâª 1 2 3 PDFâ¬ x y z */
> ++/* a b c LRE‪ 1 2 3 PDF‬ x y z */
>  +/* { dg-warning "U\\+202A" "" { target *-*-* } .-1 } */
> -+/* a b c RLEâ« 1 2 3 PDFâ¬ x y z */
> ++/* a b c RLE‫ 1 2 3 PDF‬ x y z */
>  +/* { dg-warning "U\\+202B" "" { target *-*-* } .-1 } */
> -+/* a b c LROâ 1 2 3 PDFâ¬ x y z */
> ++/* a b c LRO‭ 1 2 3 PDF‬ x y z */
>  +/* { dg-warning "U\\+202D" "" { target *-*-* } .-1 } */
> -+/* a b c RLOâ® 1 2 3 PDFâ¬ x y z */
> ++/* a b c RLO‮ 1 2 3 PDF‬ x y z */
>  +/* { dg-warning "U\\+202E" "" { target *-*-* } .-1 } */
> -+/* a b c LRIâ¦ 1 2 3 PDIâ© x y z */
> ++/* a b c LRI⁦ 1 2 3 PDI⁩ x y z */
>  +/* { dg-warning "U\\+2066" "" { target *-*-* } .-1 } */
> -+/* a b c RLIâ§ 1 2 3 PDIâ© x y */
> ++/* a b c RLI⁧ 1 2 3 PDI⁩ x y */
>  +/* { dg-warning "U\\+2067" "" { target *-*-* } .-1 } */
> -+/* a b c FSIâ¨ 1 2 3 PDIâ© x y z */
> ++/* a b c FSI⁨ 1 2 3 PDI⁩ x y z */
>  +/* { dg-warning "U\\+2068" "" { target *-*-* } .-1 } */
>  +
>  +/* Same but C++ comments instead.  */
> -+// a b c LREâª 1 2 3 PDFâ¬ x y z
> ++// a b c LRE‪ 1 2 3 PDF‬ x y z
>  +/* { dg-warning "U\\+202A" "" { target *-*-* } .-1 } */
> -+// a b c RLEâ« 1 2 3 PDFâ¬ x y z
> ++// a b c RLE‫ 1 2 3 PDF‬ x y z
>  +/* { dg-warning "U\\+202B" "" { target *-*-* } .-1 } */
> -+// a b c LROâ 1 2 3 PDFâ¬ x y z
> ++// a b c LRO‭ 1 2 3 PDF‬ x y z
>  +/* { dg-warning "U\\+202D" "" { target *-*-* } .-1 } */
> -+// a b c RLOâ® 1 2 3 PDFâ¬ x y z
> ++// a b c RLO‮ 1 2 3 PDF‬ x y z
>  +/* { dg-warning "U\\+202E" "" { target *-*-* } .-1 } */
> -+// a b c LRIâ¦ 1 2 3 PDIâ© x y z
> ++// a b c LRI⁦ 1 2 3 PDI⁩ x y z
>  +/* { dg-warning "U\\+2066" "" { target *-*-* } .-1 } */
> -+// a b c RLIâ§ 1 2 3 PDIâ© x y
> ++// a b c RLI⁧ 1 2 3 PDI⁩ x y
>  +/* { dg-warning "U\\+2067" "" { target *-*-* } .-1 } */
> -+// a b c FSIâ¨ 1 2 3 PDIâ© x y z
> ++// a b c FSI⁨ 1 2 3 PDI⁩ x y z
>  +/* { dg-warning "U\\+2068" "" { target *-*-* } .-1 } */
>  +
>  +/* Here we're closing an unopened context, warn when =any.  */
> -+/* a b c PDIâ© x y z */
> ++/* a b c PDI⁩ x y z */
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-1 } */
> -+/* a b c PDFâ¬ x y z */
> ++/* a b c PDF‬ x y z */
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
> -+// a b c PDIâ© x y z
> ++// a b c PDI⁩ x y z
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-1 } */
> -+// a b c PDFâ¬ x y z
> ++// a b c PDF‬ x y z
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
>  +
>  +/* Multiline comments.  */
> -+/* a b c PDIâ© x y z
> ++/* a b c PDI⁩ x y z
>  +   */
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-2 } */
> -+/* a b c PDFâ¬ x y z
> ++/* a b c PDF‬ x y z
>  +   */
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-2 } */
>  +/* first
> -+   a b c PDIâ© x y z
> ++   a b c PDI⁩ x y z
>  +   */
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-2 } */
>  +/* first
> -+   a b c PDFâ¬ x y z
> ++   a b c PDF‬ x y z
>  +   */
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-2 } */
>  +/* first
> -+   a b c PDIâ© x y z */
> ++   a b c PDI⁩ x y z */
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-1 } */
>  +/* first
> -+   a b c PDFâ¬ x y z */
> ++   a b c PDF‬ x y z */
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
>  +
>  +void
>  +g1 ()
>  +{
> -+  const char *s1 = "a b c LREâª 1 2 3 PDFâ¬ x y z";
> ++  const char *s1 = "a b c LRE‪ 1 2 3 PDF‬ x y z";
>  +/* { dg-warning "U\\+202A" "" { target *-*-* } .-1 } */
> -+  const char *s2 = "a b c RLEâ« 1 2 3 PDFâ¬ x y z";
> ++  const char *s2 = "a b c RLE‫ 1 2 3 PDF‬ x y z";
>  +/* { dg-warning "U\\+202B" "" { target *-*-* } .-1 } */
> -+  const char *s3 = "a b c LROâ 1 2 3 PDFâ¬ x y z";
> ++  const char *s3 = "a b c LRO‭ 1 2 3 PDF‬ x y z";
>  +/* { dg-warning "U\\+202D" "" { target *-*-* } .-1 } */
> -+  const char *s4 = "a b c RLOâ® 1 2 3 PDFâ¬ x y z";
> ++  const char *s4 = "a b c RLO‮ 1 2 3 PDF‬ x y z";
>  +/* { dg-warning "U\\+202E" "" { target *-*-* } .-1 } */
> -+  const char *s5 = "a b c LRIâ¦ 1 2 3 PDIâ© x y z";
> ++  const char *s5 = "a b c LRI⁦ 1 2 3 PDI⁩ x y z";
>  +/* { dg-warning "U\\+2066" "" { target *-*-* } .-1 } */
> -+  const char *s6 = "a b c RLIâ§ 1 2 3 PDIâ© x y z";
> ++  const char *s6 = "a b c RLI⁧ 1 2 3 PDI⁩ x y z";
>  +/* { dg-warning "U\\+2067" "" { target *-*-* } .-1 } */
> -+  const char *s7 = "a b c FSIâ¨ 1 2 3 PDIâ© x y z";
> ++  const char *s7 = "a b c FSI⁨ 1 2 3 PDI⁩ x y z";
>  +/* { dg-warning "U\\+2068" "" { target *-*-* } .-1 } */
> -+  const char *s8 = "a b c PDIâ© x y z";
> ++  const char *s8 = "a b c PDI⁩ x y z";
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-1 } */
> -+  const char *s9 = "a b c PDFâ¬ x y z";
> ++  const char *s9 = "a b c PDF‬ x y z";
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
>  +
>  +  const char *s10 = "a b c LRE\u202a 1 2 3 PDF\u202c x y z";
> @@ -689,21 +665,21 @@ index 00000000000..639e5c62e88
>  +/* { dg-warning "U\\+2068" "" { target *-*-* } .-1 } */
>  +}
>  +
> -+int aâªbâ¬c;
> ++int a‪b‬c;
>  +/* { dg-warning "U\\+202A" "" { target *-*-* } .-1 } */
> -+int aâ«bâ¬c;
> ++int a‫b‬c;
>  +/* { dg-warning "U\\+202B" "" { target *-*-* } .-1 } */
> -+int aâbâ¬c;
> ++int a‭b‬c;
>  +/* { dg-warning "U\\+202D" "" { target *-*-* } .-1 } */
> -+int aâ®bâ¬c;
> ++int a‮b‬c;
>  +/* { dg-warning "U\\+202E" "" { target *-*-* } .-1 } */
> -+int aâ¦bâ©c;
> ++int a⁦b⁩c;
>  +/* { dg-warning "U\\+2066" "" { target *-*-* } .-1 } */
> -+int aâ§bâ©c;
> ++int a⁧b⁩c;
>  +/* { dg-warning "U\\+2067" "" { target *-*-* } .-1 } */
> -+int aâ¨bâ©c;
> ++int a⁨b⁩c;
>  +/* { dg-warning "U\\+2068" "" { target *-*-* } .-1 } */
> -+int Aâ¬X;
> ++int A‬X;
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
>  +int A\u202cY;
>  +/* { dg-warning "U\\+202C" "" { target *-*-* } .-1 } */
> @@ -735,10 +711,8 @@ index 00000000000..639e5c62e88
>  +int X\u2069;
>  +/* { dg-warning "U\\+2069" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-5.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-5.c
> -new file mode 100644
> -index 00000000000..68cb053144b
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-5.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-5.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-5.c       2021-12-24 
> 20:53:14.370926970 -0800
>  @@ -0,0 +1,188 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -747,89 +721,89 @@ index 00000000000..68cb053144b
>  +   string literals, character constants), both UCN and UTF-8.  The bidi
>  +   chars here are properly terminated, except for the character constants.  
> */
>  +
> -+/* a b c LREâª 1 2 3 PDFâ¬ x y z */
> ++/* a b c LRE‪ 1 2 3 PDF‬ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c RLEâ« 1 2 3 PDFâ¬ x y z */
> ++/* a b c RLE‫ 1 2 3 PDF‬ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c LROâ 1 2 3 PDFâ¬ x y z */
> ++/* a b c LRO‭ 1 2 3 PDF‬ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c RLOâ® 1 2 3 PDFâ¬ x y z */
> ++/* a b c RLO‮ 1 2 3 PDF‬ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c LRIâ¦ 1 2 3 PDIâ© x y z */
> ++/* a b c LRI⁦ 1 2 3 PDI⁩ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c RLIâ§ 1 2 3 PDIâ© x y */
> ++/* a b c RLI⁧ 1 2 3 PDI⁩ x y */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c FSIâ¨ 1 2 3 PDIâ© x y z */
> ++/* a b c FSI⁨ 1 2 3 PDI⁩ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +/* Same but C++ comments instead.  */
> -+// a b c LREâª 1 2 3 PDFâ¬ x y z
> ++// a b c LRE‪ 1 2 3 PDF‬ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c RLEâ« 1 2 3 PDFâ¬ x y z
> ++// a b c RLE‫ 1 2 3 PDF‬ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c LROâ 1 2 3 PDFâ¬ x y z
> ++// a b c LRO‭ 1 2 3 PDF‬ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c RLOâ® 1 2 3 PDFâ¬ x y z
> ++// a b c RLO‮ 1 2 3 PDF‬ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c LRIâ¦ 1 2 3 PDIâ© x y z
> ++// a b c LRI⁦ 1 2 3 PDI⁩ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c RLIâ§ 1 2 3 PDIâ© x y
> ++// a b c RLI⁧ 1 2 3 PDI⁩ x y
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c FSIâ¨ 1 2 3 PDIâ© x y z
> ++// a b c FSI⁨ 1 2 3 PDI⁩ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +/* Here we're closing an unopened context, warn when =any.  */
> -+/* a b c PDIâ© x y z */
> ++/* a b c PDI⁩ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c PDFâ¬ x y z */
> ++/* a b c PDF‬ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c PDIâ© x y z
> ++// a b c PDI⁩ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c PDFâ¬ x y z
> ++// a b c PDF‬ x y z
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +/* Multiline comments.  */
> -+/* a b c PDIâ© x y z
> ++/* a b c PDI⁩ x y z
>  +   */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-2 } */
> -+/* a b c PDFâ¬ x y z
> ++/* a b c PDF‬ x y z
>  +   */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-2 } */
>  +/* first
> -+   a b c PDIâ© x y z
> ++   a b c PDI⁩ x y z
>  +   */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-2 } */
>  +/* first
> -+   a b c PDFâ¬ x y z
> ++   a b c PDF‬ x y z
>  +   */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-2 } */
>  +/* first
> -+   a b c PDIâ© x y z */
> ++   a b c PDI⁩ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +/* first
> -+   a b c PDFâ¬ x y z */
> ++   a b c PDF‬ x y z */
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +void
>  +g1 ()
>  +{
> -+  const char *s1 = "a b c LREâª 1 2 3 PDFâ¬ x y z";
> ++  const char *s1 = "a b c LRE‪ 1 2 3 PDF‬ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s2 = "a b c RLEâ« 1 2 3 PDFâ¬ x y z";
> ++  const char *s2 = "a b c RLE‫ 1 2 3 PDF‬ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s3 = "a b c LROâ 1 2 3 PDFâ¬ x y z";
> ++  const char *s3 = "a b c LRO‭ 1 2 3 PDF‬ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s4 = "a b c RLOâ® 1 2 3 PDFâ¬ x y z";
> ++  const char *s4 = "a b c RLO‮ 1 2 3 PDF‬ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s5 = "a b c LRIâ¦ 1 2 3 PDIâ© x y z";
> ++  const char *s5 = "a b c LRI⁦ 1 2 3 PDI⁩ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s6 = "a b c RLIâ§ 1 2 3 PDIâ© x y z";
> ++  const char *s6 = "a b c RLI⁧ 1 2 3 PDI⁩ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s7 = "a b c FSIâ¨ 1 2 3 PDIâ© x y z";
> ++  const char *s7 = "a b c FSI⁨ 1 2 3 PDI⁩ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s8 = "a b c PDIâ© x y z";
> ++  const char *s8 = "a b c PDI⁩ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s9 = "a b c PDFâ¬ x y z";
> ++  const char *s9 = "a b c PDF‬ x y z";
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +  const char *s10 = "a b c LRE\u202a 1 2 3 PDF\u202c x y z";
> @@ -883,21 +857,21 @@ index 00000000000..68cb053144b
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +}
>  +
> -+int aâªbâ¬c;
> ++int a‪b‬c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int aâ«bâ¬c;
> ++int a‫b‬c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int aâbâ¬c;
> ++int a‭b‬c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int aâ®bâ¬c;
> ++int a‮b‬c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int aâ¦bâ©c;
> ++int a⁦b⁩c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int aâ§bâ©c;
> ++int a⁧b⁩c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int aâ¨bâ©c;
> ++int a⁨b⁩c;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> -+int Aâ¬X;
> ++int A‬X;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  +int A\u202cY;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
> @@ -929,10 +903,8 @@ index 00000000000..68cb053144b
>  +int X\u2069;
>  +/* { dg-bogus "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-6.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-6.c
> -new file mode 100644
> -index 00000000000..0ce6fff2dee
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-6.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-6.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-6.c       2021-12-24 
> 20:53:14.770920157 -0800
>  @@ -0,0 +1,155 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -940,160 +912,158 @@ index 00000000000..0ce6fff2dee
>  +/* Test nesting of bidi chars in various contexts.  */
>  +
>  +/* Terminated by the wrong char:  */
> -+/* a b c LREâª 1 2 3 PDIâ© x y z */
> ++/* a b c LRE‪ 1 2 3 PDI⁩ x y z */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c RLEâ« 1 2 3 PDIâ© x y  z*/
> ++/* a b c RLE‫ 1 2 3 PDI⁩ x y  z*/
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c LROâ 1 2 3 PDIâ© x y z */
> ++/* a b c LRO‭ 1 2 3 PDI⁩ x y z */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c RLOâ® 1 2 3 PDIâ© x y z */
> ++/* a b c RLO‮ 1 2 3 PDI⁩ x y z */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c LRIâ¦ 1 2 3 PDFâ¬ x y z */
> ++/* a b c LRI⁦ 1 2 3 PDF‬ x y z */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c RLIâ§ 1 2 3 PDFâ¬ x y z */
> ++/* a b c RLI⁧ 1 2 3 PDF‬ x y z */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* a b c FSIâ¨ 1 2 3 PDFâ¬ x y  z*/
> ++/* a b c FSI⁨ 1 2 3 PDF‬ x y  z*/
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
> -+/* LREâª PDFâ¬ */
> -+/* LREâª LREâª PDFâ¬ PDFâ¬ */
> -+/* PDFâ¬ LREâª PDFâ¬ */
> -+/* LREâª PDFâ¬ LREâª PDFâ¬ */
> -+/* LREâª LREâª PDFâ¬ */
> ++/* LRE‪ PDF‬ */
> ++/* LRE‪ LRE‪ PDF‬ PDF‬ */
> ++/* PDF‬ LRE‪ PDF‬ */
> ++/* LRE‪ PDF‬ LRE‪ PDF‬ */
> ++/* LRE‪ LRE‪ PDF‬ */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* PDFâ¬ LREâª */
> ++/* PDF‬ LRE‪ */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
> -+// a b c LREâª 1 2 3 PDIâ© x y z
> ++// a b c LRE‪ 1 2 3 PDI⁩ x y z
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c RLEâ« 1 2 3 PDIâ© x y  z*/
> ++// a b c RLE‫ 1 2 3 PDI⁩ x y  z*/
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c LROâ 1 2 3 PDIâ© x y z
> ++// a b c LRO‭ 1 2 3 PDI⁩ x y z
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c RLOâ® 1 2 3 PDIâ© x y z
> ++// a b c RLO‮ 1 2 3 PDI⁩ x y z
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c LRIâ¦ 1 2 3 PDFâ¬ x y z
> ++// a b c LRI⁦ 1 2 3 PDF‬ x y z
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c RLIâ§ 1 2 3 PDFâ¬ x y z
> ++// a b c RLI⁧ 1 2 3 PDF‬ x y z
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// a b c FSIâ¨ 1 2 3 PDFâ¬ x y  z
> ++// a b c FSI⁨ 1 2 3 PDF‬ x y  z
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
> -+// LREâª PDFâ¬
> -+// LREâª LREâª PDFâ¬ PDFâ¬
> -+// PDFâ¬ LREâª PDFâ¬
> -+// LREâª PDFâ¬ LREâª PDFâ¬
> -+// LREâª LREâª PDFâ¬
> ++// LRE‪ PDF‬
> ++// LRE‪ LRE‪ PDF‬ PDF‬
> ++// PDF‬ LRE‪ PDF‬
> ++// LRE‪ PDF‬ LRE‪ PDF‬
> ++// LRE‪ LRE‪ PDF‬
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+// PDFâ¬ LREâª
> ++// PDF‬ LRE‪
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
>  +void
>  +g1 ()
>  +{
> -+  const char *s1 = "a b c LREâª 1 2 3 PDIâ© x y z";
> ++  const char *s1 = "a b c LRE‪ 1 2 3 PDI⁩ x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s2 = "a b c LRE\u202a 1 2 3 PDI\u2069 x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s3 = "a b c RLEâ« 1 2 3 PDIâ© x y ";
> ++  const char *s3 = "a b c RLE‫ 1 2 3 PDI⁩ x y ";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s4 = "a b c RLE\u202b 1 2 3 PDI\u2069 x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s5 = "a b c LROâ 1 2 3 PDIâ© x y z";
> ++  const char *s5 = "a b c LRO‭ 1 2 3 PDI⁩ x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s6 = "a b c LRO\u202d 1 2 3 PDI\u2069 x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s7 = "a b c RLOâ® 1 2 3 PDIâ© x y z";
> ++  const char *s7 = "a b c RLO‮ 1 2 3 PDI⁩ x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s8 = "a b c RLO\u202e 1 2 3 PDI\u2069 x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s9 = "a b c LRIâ¦ 1 2 3 PDFâ¬ x y z";
> ++  const char *s9 = "a b c LRI⁦ 1 2 3 PDF‬ x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s10 = "a b c LRI\u2066 1 2 3 PDF\u202c x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s11 = "a b c RLIâ§ 1 2 3 PDFâ¬ x y z\
> ++  const char *s11 = "a b c RLI⁧ 1 2 3 PDF‬ x y z\
>  +    ";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +  const char *s12 = "a b c RLI\u2067 1 2 3 PDF\u202c x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s13 = "a b c FSIâ¨ 1 2 3 PDFâ¬ x y z";
> ++  const char *s13 = "a b c FSI⁨ 1 2 3 PDF‬ x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s14 = "a b c FSI\u2068 1 2 3 PDF\u202c x y z";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s15 = "PDFâ¬ LREâª";
> ++  const char *s15 = "PDF‬ LRE‪";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s16 = "PDF\u202c LRE\u202a";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s17 = "LREâª PDFâ¬";
> ++  const char *s17 = "LRE‪ PDF‬";
>  +  const char *s18 = "LRE\u202a PDF\u202c";
> -+  const char *s19 = "LREâª LREâª PDFâ¬ PDFâ¬";
> ++  const char *s19 = "LRE‪ LRE‪ PDF‬ PDF‬";
>  +  const char *s20 = "LRE\u202a LRE\u202a PDF\u202c PDF\u202c";
> -+  const char *s21 = "PDFâ¬ LREâª PDFâ¬";
> ++  const char *s21 = "PDF‬ LRE‪ PDF‬";
>  +  const char *s22 = "PDF\u202c LRE\u202a PDF\u202c";
> -+  const char *s23 = "LREâª LREâª PDFâ¬";
> ++  const char *s23 = "LRE‪ LRE‪ PDF‬";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s24 = "LRE\u202a LRE\u202a PDF\u202c";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s25 = "PDFâ¬ LREâª";
> ++  const char *s25 = "PDF‬ LRE‪";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +  const char *s26 = "PDF\u202c LRE\u202a";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s27 = "PDFâ¬ LRE\u202a";
> ++  const char *s27 = "PDF‬ LRE\u202a";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+  const char *s28 = "PDF\u202c LREâª";
> ++  const char *s28 = "PDF\u202c LRE‪";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +}
>  +
> -+int aLREâªbPDIâ©;
> ++int aLRE‪bPDI⁩;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int A\u202aB\u2069C;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aRLEâ«bPDIâ©;
> ++int aRLE‫bPDI⁩;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int a\u202bB\u2069c;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aLROâbPDIâ©;
> ++int aLRO‭bPDI⁩;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int a\u202db\u2069c2;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aRLOâ®bPDIâ©;
> ++int aRLO‮bPDI⁩;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int a\u202eb\u2069;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aLRIâ¦bPDFâ¬;
> ++int aLRI⁦bPDF‬;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int a\u2066b\u202c;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aRLIâ§bPDFâ¬c
> ++int aRLI⁧bPDF‬c
>  +;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-2 } */
>  +int a\u2067b\u202c;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aFSIâ¨bPDFâ¬;
> ++int aFSI⁨bPDF‬;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int a\u2068b\u202c;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aFSIâ¨bPD\u202C;
> ++int aFSI⁨bPD\u202C;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aFSI\u2068bPDFâ¬_;
> ++int aFSI\u2068bPDF‬_;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+int aLREâªbPDFâ¬b;
> ++int aLRE‪bPDF‬b;
>  +int A\u202aB\u202c;
> -+int a_LREâª_LREâª_b_PDFâ¬_PDFâ¬;
> ++int a_LRE‪_LRE‪_b_PDF‬_PDF‬;
>  +int A\u202aA\u202aB\u202cB\u202c;
> -+int aPDFâ¬bLREadPDFâ¬;
> ++int aPDF‬bLREadPDF‬;
>  +int a_\u202C_\u202a_\u202c;
> -+int a_LREâª_b_PDFâ¬_c_LREâª_PDFâ¬;
> ++int a_LRE‪_b_PDF‬_c_LRE‪_PDF‬;
>  +int a_\u202a_\u202c_\u202a_\u202c_;
> -+int a_LREâª_b_PDFâ¬_c_LREâª;
> ++int a_LRE‪_b_PDF‬_c_LRE‪;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int a_\u202a_\u202c_\u202a_;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-7.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-7.c
> -new file mode 100644
> -index 00000000000..d012d420ec0
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-7.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-7.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-7.c       2021-12-24 
> 20:53:15.070915048 -0800
>  @@ -0,0 +1,9 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -1105,10 +1075,8 @@ index 00000000000..d012d420ec0
>  +/* a b c \u202a 1 2 3 */
>  +/* a b c \u202A 1 2 3 */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-8.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-8.c
> -new file mode 100644
> -index 00000000000..4f54c5092ec
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-8.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-8.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-8.c       2021-12-24 
> 20:53:15.370909939 -0800
>  @@ -0,0 +1,13 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -1124,10 +1092,8 @@ index 00000000000..4f54c5092ec
>  +int a_\U0000202a_4;
>  +/* { dg-warning "U\\+202A" "" { target *-*-* } .-1 } */
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-9.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-9.c
> -new file mode 100644
> -index 00000000000..e2af1b1ca97
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-9.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-9.c       1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-9.c       2021-12-24 
> 20:53:15.618905716 -0800
>  @@ -0,0 +1,29 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -1135,33 +1101,32 @@ index 00000000000..e2af1b1ca97
>  +/* Test that we properly separate bidi contexts 
> (comment/identifier/character
>  +   constant/string literal).  */
>  +
> -+/* LRE ->âª<- */ int pdf_\u202c_1;
> ++/* LRE ->‪<- */ int pdf_\u202c_1;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* RLE ->â«<- */ int pdf_\u202c_2;
> ++/* RLE ->‫<- */ int pdf_\u202c_2;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* LRO ->â<- */ int pdf_\u202c_3;
> ++/* LRO ->‭<- */ int pdf_\u202c_3;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* RLO ->â®<- */ int pdf_\u202c_4;
> ++/* RLO ->‮<- */ int pdf_\u202c_4;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* LRI ->â¦<-*/ int pdi_\u2069_1;
> ++/* LRI ->⁦<-*/ int pdi_\u2069_1;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* RLI ->â§<- */ int pdi_\u2069_12;
> ++/* RLI ->⁧<- */ int pdi_\u2069_12;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* FSI ->â¨<- */ int pdi_\u2069_3;
> ++/* FSI ->⁨<- */ int pdi_\u2069_3;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +
> -+const char *s1 = "LRE\u202a"; /* PDF ->â¬<- */
> ++const char *s1 = "LRE\u202a"; /* PDF ->‬<- */
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
> -+/* LRE ->âª<- */ const char *s2 = "PDF\u202c";
> ++/* LRE ->‪<- */ const char *s2 = "PDF\u202c";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +const char *s3 = "LRE\u202a"; int pdf_\u202c_5;
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  +int lre_\u202a; const char *s4 = "PDF\u202c";
>  +/* { dg-warning "unpaired" "" { target *-*-* } .-1 } */
>  diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
> -index 176f8c5bbce..112b9c24751 100644
> ---- a/libcpp/include/cpplib.h
> -+++ b/libcpp/include/cpplib.h
> +--- a/libcpp/include/cpplib.h  2021-07-27 23:55:08.712307227 -0700
> ++++ b/libcpp/include/cpplib.h  2021-12-24 20:52:31.847651110 -0800
>  @@ -318,6 +318,17 @@ enum cpp_main_search
>     CMS_system,  /* Search the system INCLUDE path.  */
>   };
> @@ -1202,9 +1167,8 @@ index 176f8c5bbce..112b9c24751 100644
>
>   /* Callback for header lookup for HEADER, which is the name of a
>  diff --git a/libcpp/init.c b/libcpp/init.c
> -index 5a424e23553..f9a8f5f088f 100644
> ---- a/libcpp/init.c
> -+++ b/libcpp/init.c
> +--- a/libcpp/init.c    2021-07-27 23:55:08.716307283 -0700
> ++++ b/libcpp/init.c    2021-12-24 20:52:31.847651110 -0800
>  @@ -219,6 +219,7 @@ cpp_create_reader (enum c_lang lang, cpp
>         = ENABLE_CANONICAL_SYSTEM_HEADERS;
>     CPP_OPTION (pfile, ext_numeric_literals) = 1;
> @@ -1214,9 +1178,8 @@ index 5a424e23553..f9a8f5f088f 100644
>     /* Default CPP arithmetic to something sensible for the host for the
>        benefit of dumb users like fix-header.  */
>  diff --git a/libcpp/internal.h b/libcpp/internal.h
> -index 8577cab6c83..0ce0246c5a2 100644
> ---- a/libcpp/internal.h
> -+++ b/libcpp/internal.h
> +--- a/libcpp/internal.h        2021-07-27 23:55:08.716307283 -0700
> ++++ b/libcpp/internal.h        2021-12-24 20:52:31.847651110 -0800
>  @@ -597,6 +597,13 @@ struct cpp_reader
>     /* Location identifying the main source file -- intended to be line
>        zero of said file.  */
> @@ -1232,9 +1195,8 @@ index 8577cab6c83..0ce0246c5a2 100644
>
>   /* Character classes.  Based on the more primitive macros in safe-ctype.h.
>  diff --git a/libcpp/lex.c b/libcpp/lex.c
> -index fa2253d41c3..6a4fbce6030 100644
> ---- a/libcpp/lex.c
> -+++ b/libcpp/lex.c
> +--- a/libcpp/lex.c     2021-07-27 23:55:08.716307283 -0700
> ++++ b/libcpp/lex.c     2021-12-24 20:52:31.847651110 -0800
>  @@ -1164,6 +1164,324 @@ _cpp_process_line_notes (cpp_reader *pfi
>       }
>   }
> diff --git a/meta/recipes-devtools/gcc/gcc/0004-CVE-2021-42574.patch 
> b/meta/recipes-devtools/gcc/gcc/0004-CVE-2021-42574.patch
> index 4999c71b64..14b969a5e0 100644
> --- a/meta/recipes-devtools/gcc/gcc/0004-CVE-2021-42574.patch
> +++ b/meta/recipes-devtools/gcc/gcc/0004-CVE-2021-42574.patch
> @@ -90,11 +90,10 @@ Signed-off-by: Pgowda <[email protected]>
>   2 files changed, 257 insertions(+), 48 deletions(-)
>   create mode 100644 gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c
>
> +
>  diff --git a/gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c 
> b/gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c
> -new file mode 100644
> -index 00000000000..298750a2a64
> ---- /dev/null
> -+++ b/gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c
> +--- a/gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c  1969-12-31 
> 16:00:00.000000000 -0800
> ++++ b/gcc/testsuite/c-c++-common/Wbidi-chars-ranges.c  2021-12-24 
> 20:53:15.618905716 -0800
>  @@ -0,0 +1,54 @@
>  +/* PR preprocessor/103026 */
>  +/* { dg-do compile } */
> @@ -104,7 +103,7 @@ index 00000000000..298750a2a64
>  +
>  +int test_unpaired_bidi () {
>  +    int isAdmin = 0;
> -+    /*â® } â¦if (isAdmin)â© â¦ begin admins only */
> ++    /*‮ } ⁦if (isAdmin)⁩ ⁦ begin admins only */
>  +/* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
>  +#if 0
>  +   { dg-begin-multiline-output "" }
> @@ -117,7 +116,7 @@ index 00000000000..298750a2a64
>  +#endif
>  +
>  +        __builtin_printf("You are an admin.\n");
> -+    /* end admins only â® { â¦*/
> ++    /* end admins only ‮ { ⁦*/
>  +/* { dg-warning "bidirectional" "" { target *-*-* } .-1 } */
>  +#if 0
>  +   { dg-begin-multiline-output "" }
> @@ -133,7 +132,7 @@ index 00000000000..298750a2a64
>  +    return 0;
>  +}
>  +
> -+int LRE_âª_PDF_\u202c;
> ++int LRE_‪_PDF_\u202c;
>  +/* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
>  +#if 0
>  +   { dg-begin-multiline-output "" }
> @@ -142,7 +141,7 @@ index 00000000000..298750a2a64
>  +   { dg-end-multiline-output "" }
>  +#endif
>  +
> -+const char *s1 = "LRE_âª_PDF_\u202c";
> ++const char *s1 = "LRE_‪_PDF_\u202c";
>  +/* { dg-warning "mismatch" "" { target *-*-* } .-1 } */
>  +#if 0
>  +   { dg-begin-multiline-output "" }
> @@ -151,9 +150,8 @@ index 00000000000..298750a2a64
>  +   { dg-end-multiline-output "" }
>  +#endif
>  diff --git a/libcpp/lex.c b/libcpp/lex.c
> -index 2421d6c0f40..94c36f0d014 100644
> ---- a/libcpp/lex.c
> -+++ b/libcpp/lex.c
> +--- a/libcpp/lex.c     2021-12-24 20:59:55.132097460 -0800
> ++++ b/libcpp/lex.c     2021-12-24 20:59:36.172420707 -0800
>  @@ -1172,11 +1172,34 @@ namespace bidi {
>     /* All the UTF-8 encodings of bidi characters start with E2.  */
>     constexpr uchar utf8_start = 0xe2;
> --
> 2.31.1
>

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Re: [OE-core] [PATCH v3] gcc: Fix CVE-2021-42574 testcase

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