gcc: upgrade 11.2 -> current 12 snapshot

gcc 12 is expected to be released this month or early next month.
Update so we're prepared.
This keeps/ports all patches currently applied to 11.2 that haven't
landed upstream yet.

[v2: Back out the zephyr DWARF-4 workaround]

(From OE-Core rev: 540116ca70fb71ac489b61b74b3a397ff92f27e2)
Signed-off-by: Bernhard Rosenkränzer <bernhard.rosenkraenzer.ext@huawei.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-11.2.inc → meta/recipes-devtools/gcc/gcc-12.0.inc

@@ -2,11 +2,14 @@ require gcc-common.inc
 
 # Third digit in PV should be incremented after a minor release
 
-PV = "11.2.0"
+PV = "12.0.1"
 
 # BINV should be incremented to a revision after a minor gcc release
 
-BINV = "11.2.0"
+BINV = "12.0.1"
+
+MAJOR = "12"
+SNAPSHOT = "20220313"
 
 FILESEXTRAPATHS =. "${FILE_DIRNAME}/gcc:${FILE_DIRNAME}/gcc/backport:"
 
@@ -26,7 +29,7 @@ LIC_FILES_CHKSUM = "\
 #RELEASE ?= "5b2ac9b40c325e9209c0bd55955db84aad4a0cc5"
 #BASEURI ?= "https://github.com/gcc-mirror/gcc/archive/${RELEASE}.zip;downloadfilename=gcc-${PV}-${RELEASE}.zip"
 
-BASEURI ?= "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.xz \
+BASEURI ?= "https://mirror.koddos.net/gcc/snapshots/${MAJOR}-${SNAPSHOT}/gcc-${MAJOR}-${SNAPSHOT}.tar.xz \
            "
 SRC_URI = "\
            ${BASEURI} \
@@ -36,43 +39,27 @@ SRC_URI = "\
            file://0007-Use-the-defaults.h-in-B-instead-of-S-and-t-oe-in-B.patch \
            file://0009-cpp-honor-sysroot.patch \
            file://0011-Define-GLIBC_DYNAMIC_LINKER-and-UCLIBC_DYNAMIC_LINKE.patch \
-           file://0012-gcc-Fix-argument-list-too-long-error.patch \
            file://0014-libtool.patch \
            file://0015-gcc-armv4-pass-fix-v4bx-to-linker-to-support-EABI.patch \
            file://0016-Use-the-multilib-config-files-from-B-instead-of-usin.patch \
            file://0017-Avoid-using-libdir-from-.la-which-usually-points-to-.patch \
-           file://0018-export-CPP.patch \
            file://0019-Ensure-target-gcc-headers-can-be-included.patch \
            file://0020-Don-t-search-host-directory-during-relink-if-inst_pr.patch \
            file://0023-libcc1-fix-libcc1-s-install-path-and-rpath.patch \
            file://0024-handle-sysroot-support-for-nativesdk-gcc.patch \
            file://0025-Search-target-sysroot-gcc-version-specific-dirs-with.patch \
-           file://0027-nios2-Define-MUSL_DYNAMIC_LINKER.patch \
            file://0028-Add-ssp_nonshared-to-link-commandline-for-musl-targe.patch \
-           file://0029-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch \
-           file://0030-sync-gcc-stddef.h-with-musl.patch \
            file://0033-Re-introduce-spe-commandline-options.patch \
            file://0034-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch \
            file://0035-gentypes-genmodes-Do-not-use-__LINE__-for-maintainin.patch \
            file://0036-mingw32-Enable-operation_not_supported.patch \
            file://0037-libatomic-Do-not-enforce-march-on-aarch64.patch \
-           file://0041-apply-debug-prefix-maps-before-checksumming-DIEs.patch \
            file://0006-If-CXXFLAGS-contains-something-unsupported-by-the-bu.patch \
            file://0001-Fix-install-path-of-linux64.h.patch \
-           file://0001-CVE-2021-35465.patch \
-           file://0002-CVE-2021-35465.patch \
-           file://0003-CVE-2021-35465.patch \
-           file://0004-CVE-2021-35465.patch \
-           file://0001-CVE-2021-42574.patch \
-           file://0002-CVE-2021-42574.patch \
-           file://0003-CVE-2021-42574.patch \
-           file://0004-CVE-2021-42574.patch \
-           file://0001-CVE-2021-46195.patch \
-           file://0042-Fix-thread-stack-size-init.patch \
 "
-SRC_URI[sha256sum] = "d08edc536b54c372a1010ff6619dd274c0f1603aa49212ba20f7aa2cda36fa8b"
+SRC_URI[sha256sum] = "979d8cbe9b2ed2ab4434f52097754e004a207cf6541aea3e167c5d0f74957633"
 
-S = "${TMPDIR}/work-shared/gcc-${PV}-${PR}/gcc-${PV}"
+S = "${TMPDIR}/work-shared/gcc-${PV}-${PR}/gcc-${MAJOR}-${SNAPSHOT}"
 
 # For dev release snapshotting
 #S = "${TMPDIR}/work-shared/gcc-${PV}-${PR}/gcc-${RELEASE}"

meta/recipes-devtools/gcc/gcc-runtime.inc

@@ -2,7 +2,7 @@ require gcc-configure-common.inc
 
 SUMMARY = "Runtime libraries from GCC"
 
-# Over-ride the LICENSE set by gcc-${PV}.inc to remove "& GPL-3.0-only"
+# Over-ride the LICENSE set by gcc-${PV}.inc to remove "& GPLv3"
 # All gcc-runtime packages are now covered by the runtime exception.
 LICENSE = "GPL-3.0-with-GCC-exception"
 

meta/recipes-devtools/gcc/gcc/0001-CVE-2021-35465.patch

-From 3929bca9ca95de9d35e82ae8828b188029e3eb70 Mon Sep 17 00:00:00 2001
-From: Richard Earnshaw <rearnsha@arm.com>
-Date: Fri, 11 Jun 2021 16:02:05 +0100
-Subject: [PATCH] arm: Add command-line option for enabling CVE-2021-35465
- mitigation [PR102035]
-
-Add a new option, -mfix-cmse-cve-2021-35465 and document it.  Enable it
-automatically for cortex-m33, cortex-m35p and cortex-m55.
-
-gcc:
-	PR target/102035
-	* config/arm/arm.opt (mfix-cmse-cve-2021-35465): New option.
-	* doc/invoke.texi (Arm Options): Document it.
-	* config/arm/arm-cpus.in (quirk_vlldm): New feature bit.
-	(ALL_QUIRKS): Add quirk_vlldm.
-	(cortex-m33): Add quirk_vlldm.
-	(cortex-m35p, cortex-m55): Likewise.
-	* config/arm/arm.c (arm_option_override): Enable fix_vlldm if
-	targetting an affected CPU and not explicitly controlled on
-	the command line.
-
-CVE: CVE-2021-35465
-Upstream-Status: Backport [https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=3929bca9ca95de9d35e82ae8828b188029e3eb70]
-Signed-off-by: Pgowda <pgowda.cve@gmail.com>
-
----
- gcc/config/arm/arm-cpus.in | 9 +++++++--
- gcc/config/arm/arm.c       | 9 +++++++++
- gcc/config/arm/arm.opt     | 4 ++++
- gcc/doc/invoke.texi        | 9 +++++++++
- 4 files changed, 29 insertions(+), 2 deletions(-)
-
-diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
---- a/gcc/config/arm/arm.c	2021-11-15 02:13:11.100579812 -0800
-+++ b/gcc/config/arm/arm.c	2021-11-15 02:17:36.988237692 -0800
-@@ -3610,6 +3610,15 @@ arm_option_override (void)
- 	fix_cm3_ldrd = 0;
-     }
- 
-+  /* Enable fix_vlldm by default if required.  */
-+  if (fix_vlldm == 2)
-+    {
-+      if (bitmap_bit_p (arm_active_target.isa, isa_bit_quirk_vlldm))
-+	fix_vlldm = 1;
-+      else
-+	fix_vlldm = 0;
-+    }
-+
-   /* Hot/Cold partitioning is not currently supported, since we can't
-      handle literal pool placement in that case.  */
-   if (flag_reorder_blocks_and_partition)
-diff --git a/gcc/config/arm/arm-cpus.in b/gcc/config/arm/arm-cpus.in
---- a/gcc/config/arm/arm-cpus.in	2021-11-15 02:13:11.104579747 -0800
-+++ b/gcc/config/arm/arm-cpus.in	2021-11-15 02:17:36.984237757 -0800
-@@ -186,6 +186,9 @@ define feature quirk_armv6kz
- # Cortex-M3 LDRD quirk.
- define feature quirk_cm3_ldrd
- 
-+# v8-m/v8.1-m VLLDM errata.
-+define feature quirk_vlldm
-+
- # Don't use .cpu assembly directive
- define feature quirk_no_asmcpu
- 
-@@ -322,7 +325,7 @@ define implied vfp_base MVE MVE_FP ALL_F
- # architectures.
- # xscale isn't really a 'quirk', but it isn't an architecture either and we
- # need to ignore it for matching purposes.
--define fgroup ALL_QUIRKS   quirk_no_volatile_ce quirk_armv6kz quirk_cm3_ldrd xscale quirk_no_asmcpu
-+define fgroup ALL_QUIRKS   quirk_no_volatile_ce quirk_armv6kz quirk_cm3_ldrd quirk_vlldm xscale quirk_no_asmcpu
- 
- define fgroup IGNORE_FOR_MULTILIB cdecp0 cdecp1 cdecp2 cdecp3 cdecp4 cdecp5 cdecp6 cdecp7
- 
-@@ -1570,6 +1573,7 @@ begin cpu cortex-m33
-  architecture armv8-m.main+dsp+fp
-  option nofp remove ALL_FP
-  option nodsp remove armv7em
-+ isa quirk_vlldm
-  costs v7m
- end cpu cortex-m33
- 
-@@ -1579,6 +1583,7 @@ begin cpu cortex-m35p
-  architecture armv8-m.main+dsp+fp
-  option nofp remove ALL_FP
-  option nodsp remove armv7em
-+ isa quirk_vlldm
-  costs v7m
- end cpu cortex-m35p
- 
-@@ -1590,7 +1595,7 @@ begin cpu cortex-m55
-  option nomve remove mve mve_float
-  option nofp remove ALL_FP mve_float
-  option nodsp remove MVE mve_float
-- isa quirk_no_asmcpu
-+ isa quirk_no_asmcpu quirk_vlldm
-  costs v7m
-  vendor 41
- end cpu cortex-m55
-diff --git a/gcc/config/arm/arm.opt b/gcc/config/arm/arm.opt
---- a/gcc/config/arm/arm.opt	2021-11-15 02:13:11.104579747 -0800
-+++ b/gcc/config/arm/arm.opt	2021-11-15 02:17:36.988237692 -0800
-@@ -268,6 +268,10 @@ Target Var(fix_cm3_ldrd) Init(2)
- Avoid overlapping destination and address registers on LDRD instructions
- that may trigger Cortex-M3 errata.
- 
-+mfix-cmse-cve-2021-35465
-+Target Var(fix_vlldm) Init(2)
-+Mitigate issues with VLLDM on some M-profile devices (CVE-2021-35465).
-+
- munaligned-access
- Target Var(unaligned_access) Init(2) Save
- Enable unaligned word and halfword accesses to packed data.
-diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
---- a/gcc/doc/invoke.texi	2021-11-15 02:13:11.112579616 -0800
-+++ b/gcc/doc/invoke.texi	2021-11-15 02:17:36.996237562 -0800
-@@ -804,6 +804,7 @@ Objective-C and Objective-C++ Dialects}.
- -mverbose-cost-dump @gol
- -mpure-code @gol
- -mcmse @gol
-+-mfix-cmse-cve-2021-35465 @gol
- -mfdpic}
- 
- @emph{AVR Options}
-@@ -20487,6 +20488,14 @@ Generate secure code as per the "ARMv8-M
- Development Tools Engineering Specification", which can be found on
- @url{https://developer.arm.com/documentation/ecm0359818/latest/}.
- 
-+@item -mfix-cmse-cve-2021-35465
-+@opindex mfix-cmse-cve-2021-35465
-+Mitigate against a potential security issue with the @code{VLLDM} instruction
-+in some M-profile devices when using CMSE (CVE-2021-365465).  This option is
-+enabled by default when the option @option{-mcpu=} is used with
-+@code{cortex-m33}, @code{cortex-m35p} or @code{cortex-m55}.  The option
-+@option{-mno-fix-cmse-cve-2021-35465} can be used to disable the mitigation.
-+
- @item -mfdpic
- @itemx -mno-fdpic
- @opindex mfdpic

meta/recipes-devtools/gcc/gcc/0001-CVE-2021-46195.patch

-From f10bec5ffa487ad3033ed5f38cfd0fc7d696deab Mon Sep 17 00:00:00 2001
-From: Nick Clifton <nickc@redhat.com>
-Date: Mon, 31 Jan 2022 14:28:42 +0000
-Subject: [PATCH] libiberty: Fix infinite recursion in rust demangler.
-
-libiberty/
-	PR demangler/98886
-	PR demangler/99935
-	* rust-demangle.c (struct rust_demangler): Add a recursion
-	counter.
-	(demangle_path): Increment/decrement the recursion counter upon
-	entry and exit.  Fail if the counter exceeds a fixed limit.
-	(demangle_type): Likewise.
-	(rust_demangle_callback): Initialise the recursion counter,
-	disabling if requested by the option flags.
-
-CVE: CVE-2021-46195
-Upstream-Status: Backport
-[https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=f10bec5ffa487ad3033ed5f38cfd0fc7d696deab]
-Signed-off-by: Pgowda <pgowda.cve@gmail.com>
----
- libiberty/rust-demangle.c | 47 ++++++++++++++++++++++++++++++++++-----
- 1 file changed, 41 insertions(+), 6 deletions(-)
-
-diff --git a/libiberty/rust-demangle.c b/libiberty/rust-demangle.c
-index 18c760491bd..3b24d63892a 100644
---- a/libiberty/rust-demangle.c
-+++ b/libiberty/rust-demangle.c
-@@ -74,6 +74,12 @@ struct rust_demangler
-   /* Rust mangling version, with legacy mangling being -1. */
-   int version;
- 
-+  /* Recursion depth.  */
-+  unsigned int recursion;
-+  /* Maximum number of times demangle_path may be called recursively.  */
-+#define RUST_MAX_RECURSION_COUNT  1024
-+#define RUST_NO_RECURSION_LIMIT   ((unsigned int) -1)
-+
-   uint64_t bound_lifetime_depth;
- };
- 
-@@ -671,6 +677,15 @@ demangle_path (struct rust_demangler *rdm, int in_value)
-   if (rdm->errored)
-     return;
- 
-+  if (rdm->recursion != RUST_NO_RECURSION_LIMIT)
-+    {
-+      ++ rdm->recursion;
-+      if (rdm->recursion > RUST_MAX_RECURSION_COUNT)
-+	/* FIXME: There ought to be a way to report
-+	   that the recursion limit has been reached.  */
-+	goto fail_return;
-+    }
-+
-   switch (tag = next (rdm))
-     {
-     case 'C':
-@@ -688,10 +703,7 @@ demangle_path (struct rust_demangler *rdm, int in_value)
-     case 'N':
-       ns = next (rdm);
-       if (!ISLOWER (ns) && !ISUPPER (ns))
--        {
--          rdm->errored = 1;
--          return;
--        }
-+	goto fail_return;
- 
-       demangle_path (rdm, in_value);
- 
-@@ -776,9 +788,15 @@ demangle_path (struct rust_demangler *rdm, int in_value)
-         }
-       break;
-     default:
--      rdm->errored = 1;
--      return;
-+      goto fail_return;
-     }
-+  goto pass_return;
-+
-+ fail_return:
-+  rdm->errored = 1;
-+ pass_return:
-+  if (rdm->recursion != RUST_NO_RECURSION_LIMIT)
-+    -- rdm->recursion;
- }
- 
- static void
-@@ -870,6 +888,19 @@ demangle_type (struct rust_demangler *rdm)
-       return;
-     }
- 
-+   if (rdm->recursion != RUST_NO_RECURSION_LIMIT)
-+    {
-+      ++ rdm->recursion;
-+      if (rdm->recursion > RUST_MAX_RECURSION_COUNT)
-+	/* FIXME: There ought to be a way to report
-+	   that the recursion limit has been reached.  */
-+	{
-+	  rdm->errored = 1;
-+	  -- rdm->recursion;
-+	  return;
-+	}
-+    }
-+
-   switch (tag)
-     {
-     case 'R':
-@@ -1030,6 +1061,9 @@ demangle_type (struct rust_demangler *rdm)
-       rdm->next--;
-       demangle_path (rdm, 0);
-     }
-+
-+  if (rdm->recursion != RUST_NO_RECURSION_LIMIT)
-+    -- rdm->recursion;
- }
- 
- /* A trait in a trait object may have some "existential projections"
-@@ -1320,6 +1354,7 @@ rust_demangle_callback (const char *mangled, int options,
-   rdm.skipping_printing = 0;
-   rdm.verbose = (options & DMGL_VERBOSE) != 0;
-   rdm.version = 0;
-+  rdm.recursion = (options & DMGL_NO_RECURSE_LIMIT) ? RUST_NO_RECURSION_LIMIT : 0;
-   rdm.bound_lifetime_depth = 0;
- 
-   /* Rust symbols always start with _R (v0) or _ZN (legacy). */
--- 
-2.27.0
-

meta/recipes-devtools/gcc/gcc/0001-gcc-4.3.1-ARCH_FLAGS_FOR_TARGET.patch

@@ -4,6 +4,7 @@ Date: Fri, 29 Mar 2013 08:37:11 +0400
 Subject: [PATCH] gcc-4.3.1: ARCH_FLAGS_FOR_TARGET
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Bernhard Rosenkraenzer <bernhard.rosenkraenzer.ext@huawei.com> [ported to gcc 12]
 
 Upstream-Status: Inappropriate [embedded specific]
 ---
@@ -12,10 +13,10 @@ Upstream-Status: Inappropriate [embedded specific]
  2 files changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/configure b/configure
-index 504f6410274..bcebad264ec 100755
+index f7e0fa46c9c..ce1f596e4ca 100755
 --- a/configure
 +++ b/configure
-@@ -9728,7 +9728,7 @@ fi
+@@ -10177,7 +10177,7 @@ fi
  # for target_alias and gcc doesn't manage it consistently.
  target_configargs="--cache-file=./config.cache ${target_configargs}"
  
@@ -25,10 +26,10 @@ index 504f6410274..bcebad264ec 100755
   *" newlib "*)
    case " $target_configargs " in
 diff --git a/configure.ac b/configure.ac
-index 088e735c5db..1289fe08760 100644
+index 434b1a267a4..a139a3c80ad 100644
 --- a/configure.ac
 +++ b/configure.ac
-@@ -3240,7 +3240,7 @@ fi
+@@ -3348,7 +3348,7 @@ fi
  # for target_alias and gcc doesn't manage it consistently.
  target_configargs="--cache-file=./config.cache ${target_configargs}"
  

meta/recipes-devtools/gcc/gcc/0002-CVE-2021-35465.patch

-From 574e7950bd6b34e9e2cacce18c802b45505d1d0a Mon Sep 17 00:00:00 2001
-From: Richard Earnshaw <rearnsha@arm.com>
-Date: Fri, 18 Jun 2021 17:16:25 +0100
-Subject: [PATCH] arm: add erratum mitigation to __gnu_cmse_nonsecure_call
- [PR102035]
-
-Add the recommended erratum mitigation sequence to
-__gnu_cmse_nonsecure_call for use on Armv8-m.main devices. Since this
-is in the library code we cannot know in advance whether the core we
-are running on will be affected by this, so always enable it.
-
-libgcc:
-	PR target/102035
-	* config/arm/cmse_nonsecure_call.S (__gnu_cmse_nonsecure_call):
-	Add vlldm erratum work-around.
-
-CVE: CVE-2021-35465
-Upstream-Status: Backport [https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=574e7950bd6b34e9e2cacce18c802b45505d1d0a]
-Signed-off-by: Pgowda <pgowda.cve@gmail.com>
-
----
- libgcc/config/arm/cmse_nonsecure_call.S | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/libgcc/config/arm/cmse_nonsecure_call.S b/libgcc/config/arm/cmse_nonsecure_call.S
---- a/libgcc/config/arm/cmse_nonsecure_call.S
-+++ b/libgcc/config/arm/cmse_nonsecure_call.S
-@@ -102,6 +102,11 @@ blxns	    r4
- #ifdef __ARM_PCS_VFP
- vpop.f64    {d8-d15}
- #else
-+/* VLLDM erratum mitigation sequence. */
-+mrs	    r5, control
-+tst	    r5, #8	  /* CONTROL_S.SFPA */
-+it	    ne
-+.inst.w	    0xeeb00a40	  /* vmovne s0, s0 */
- vlldm	    sp		  /* Lazy restore of d0-d16 and FPSCR.  */
- add	    sp, sp, #0x88 /* Free space used to save floating point registers.  */
- #endif /* __ARM_PCS_VFP */

meta/recipes-devtools/gcc/gcc/0002-gcc-poison-system-directories.patch

@@ -14,14 +14,15 @@ wants this to be a failure, they can add "-Werror=poison-system-directories".
 Upstream-Status: Pending
 Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Bernhard Rosenkränzer <bernhard.rosenkraenzer.ext@huawei.com> [ported to gcc 12]
 ---
  gcc/common.opt      |  4 ++++
  gcc/config.in       | 10 ++++++++++
  gcc/configure       | 19 +++++++++++++++++++
  gcc/configure.ac    | 16 ++++++++++++++++
  gcc/doc/invoke.texi |  9 +++++++++
- gcc/gcc.c           |  9 +++++++--
- gcc/incpath.c       | 21 +++++++++++++++++++++
+ gcc/gcc.cc          |  9 +++++++--
+ gcc/incpath.cc      | 21 +++++++++++++++++++++
  7 files changed, 86 insertions(+), 2 deletions(-)
 
 diff --git a/gcc/common.opt b/gcc/common.opt
@@ -158,10 +159,10 @@ index 7a368959e5e..6659a903bf0 100644
  @item -Wfloat-equal
  @opindex Wfloat-equal
  @opindex Wno-float-equal
-diff --git a/gcc/gcc.c b/gcc/gcc.c
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
 index 7837553958b..19c75b6e20d 100644
---- a/gcc/gcc.c
-+++ b/gcc/gcc.c
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
 @@ -1152,6 +1152,8 @@ proper position among the other output files.  */
     "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
     "%X %{o*} %{e*} %{N} %{n} %{r}\
@@ -185,10 +186,10 @@ index 7837553958b..19c75b6e20d 100644
  
  /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
  
-diff --git a/gcc/incpath.c b/gcc/incpath.c
+diff --git a/gcc/incpath.cc b/gcc/incpath.cc
 index 446d280321d..fbfc0ce03b8 100644
---- a/gcc/incpath.c
-+++ b/gcc/incpath.c
+--- a/gcc/incpath.cc
++++ b/gcc/incpath.cc
 @@ -26,6 +26,7 @@
  #include "intl.h"
  #include "incpath.h"

meta/recipes-devtools/gcc/gcc/0003-CVE-2021-35465.patch

-From 30461cf8dba3d3adb15a125e4da48800eb2b9b8f Mon Sep 17 00:00:00 2001
-From: Richard Earnshaw <rearnsha@arm.com>
-Date: Fri, 18 Jun 2021 17:18:37 +0100
-Subject: [PATCH] arm: fix vlldm erratum for Armv8.1-m [PR102035]
-
-For Armv8.1-m we generate code that emits VLLDM directly and do not
-rely on support code in the library, so emit the mitigation directly
-as well, when required.  In this case, we can use the compiler options
-to determine when to apply the fix and when it is safe to omit it.
-
-gcc:
-	PR target/102035
-	* config/arm/arm.md (attribute arch): Add fix_vlldm.
-	(arch_enabled): Use it.
-	* config/arm/vfp.md (lazy_store_multiple_insn): Add alternative to
-	use when erratum mitigation is needed.
-
-CVE: CVE-2021-35465
-Upstream-Status: Backport [https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=30461cf8dba3d3adb15a125e4da48800eb2b9b8f]
-Signed-off-by: Pgowda <pgowda.cve@gmail.com>
-
----
- gcc/config/arm/arm.md | 11 +++++++++--
- gcc/config/arm/vfp.md | 10 +++++++---
- 2 files changed, 16 insertions(+), 5 deletions(-)
-
-diff -upr a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md
---- a/gcc/config/arm/arm.md	2020-07-22 23:35:17.344384552 -0700
-+++ b/gcc/config/arm/arm.md	2021-11-11 20:33:58.431543947 -0800
-@@ -132,9 +132,12 @@
- ; TARGET_32BIT, "t1" or "t2" to specify a specific Thumb mode.  "v6"
- ; for ARM or Thumb-2 with arm_arch6, and nov6 for ARM without
- ; arm_arch6.  "v6t2" for Thumb-2 with arm_arch6 and "v8mb" for ARMv8-M
--; Baseline.  This attribute is used to compute attribute "enabled",
-+; Baseline.  "fix_vlldm" is for fixing the v8-m/v8.1-m VLLDM erratum.
-+; This attribute is used to compute attribute "enabled",
- ; use type "any" to enable an alternative in all cases.
--(define_attr "arch" "any,a,t,32,t1,t2,v6,nov6,v6t2,v8mb,iwmmxt,iwmmxt2,armv6_or_vfpv3,neon,mve"
-+(define_attr "arch" "any, a, t, 32, t1, t2, v6,nov6, v6t2, \
-+		     v8mb, fix_vlldm, iwmmxt, iwmmxt2, armv6_or_vfpv3, \
-+		     neon, mve"
-   (const_string "any"))
- 
- (define_attr "arch_enabled" "no,yes"
-@@ -177,6 +180,10 @@
- 	      (match_test "TARGET_THUMB1 && arm_arch8"))
- 	 (const_string "yes")
- 
-+	 (and (eq_attr "arch" "fix_vlldm")
-+	      (match_test "fix_vlldm"))
-+	 (const_string "yes")
-+
- 	 (and (eq_attr "arch" "iwmmxt2")
- 	      (match_test "TARGET_REALLY_IWMMXT2"))
- 	 (const_string "yes")
-diff -upr a/gcc/config/arm/vfp.md b/gcc/config/arm/vfp.md
---- a/gcc/config/arm/vfp.md	2020-07-22 23:35:17.356384684 -0700
-+++ b/gcc/config/arm/vfp.md	2021-11-11 20:33:58.431543947 -0800
-@@ -1703,12 +1703,15 @@
-    (set_attr "type" "mov_reg")]
- )
- 
-+;; Both this and the next instruction are treated by GCC in the same
-+;; way as a blockage pattern.  That's perhaps stronger than it needs
-+;; to be, but we do not want accesses to the VFP register bank to be
-+;; moved across either instruction.
-+
- (define_insn "lazy_store_multiple_insn"
--  [(set (match_operand:SI 0 "s_register_operand" "+&rk")
--	(post_dec:SI (match_dup 0)))
--   (unspec_volatile [(const_int 0)
--		     (mem:SI (post_dec:SI (match_dup 0)))]
--		    VUNSPEC_VLSTM)]
-+  [(unspec_volatile
-+    [(mem:BLK (match_operand:SI 0 "s_register_operand" "rk"))]
-+    VUNSPEC_VLSTM)]
-   "use_cmse && reload_completed"
-   "vlstm%?\\t%0"
-   [(set_attr "predicable" "yes")
-@@ -1716,14 +1719,16 @@
- )
- 
- (define_insn "lazy_load_multiple_insn"
--  [(set (match_operand:SI 0 "s_register_operand" "+&rk")
--	(post_inc:SI (match_dup 0)))
--   (unspec_volatile:SI [(const_int 0)
--			(mem:SI (match_dup 0))]
--		       VUNSPEC_VLLDM)]
-+  [(unspec_volatile
-+    [(mem:BLK (match_operand:SI 0 "s_register_operand" "rk,rk"))]
-+    VUNSPEC_VLLDM)]
-   "use_cmse && reload_completed"
--  "vlldm%?\\t%0"
--  [(set_attr "predicable" "yes")
-+  "@
-+   vscclrm\\t{vpr}\;vlldm\\t%0
-+   vlldm\\t%0"
-+  [(set_attr "arch" "fix_vlldm,*")
-+   (set_attr "predicable" "no")
-+   (set_attr "length" "8,4")
-    (set_attr "type" "load_4")]
- )
- 

meta/recipes-devtools/gcc/gcc/0003-CVE-2021-42574.patch

-From 1a7f2c0774129750fdf73e9f1b78f0ce983c9ab3 Mon Sep 17 00:00:00 2001
-From: David Malcolm <dmalcolm@redhat.com>
-Date: Tue, 2 Nov 2021 09:54:32 -0400
-Subject: [PATCH] libcpp: escape non-ASCII source bytes in -Wbidi-chars=
- [PR103026]
-MIME-Version: 1.0
-Content-Type: text/plain; charset=utf8
-Content-Transfer-Encoding: 8bit
-
-This flags rich_locations associated with -Wbidi-chars= so that
-non-ASCII bytes will be escaped when printing the source lines
-(using the diagnostics support I added in
-r12-4825-gbd5e882cf6e0def3dd1bc106075d59a303fe0d1e).
-
-In particular, this ensures that the printed source lines will
-be pure ASCII, and thus the visual ordering of the characters
-will be the same as the logical ordering.
-
-Before:
-
-  Wbidi-chars-1.c: In function âmainâ:
-  Wbidi-chars-1.c:6:43: warning: unpaired UTF-8 bidirectional control character detected [-Wbidi-chars=]
-      6 |     /*â® } â¦if (isAdmin)⩠⦠begin admins only */
-        |                                           ^
-  Wbidi-chars-1.c:9:28: warning: unpaired UTF-8 bidirectional control character detected [-Wbidi-chars=]
-      9 |     /* end admins only â® { â¦*/
-        |                            ^
-
-  Wbidi-chars-11.c:6:15: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-      6 | int LRE_âª_PDF_\u202c;
-        |               ^
-  Wbidi-chars-11.c:8:19: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-      8 | int LRE_\u202a_PDF_â¬_;
-        |                   ^
-  Wbidi-chars-11.c:10:28: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-     10 | const char *s1 = "LRE_âª_PDF_\u202c";
-        |                            ^
-  Wbidi-chars-11.c:12:33: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-     12 | const char *s2 = "LRE_\u202a_PDF_â¬";
-        |                                 ^
-
-After:
-
-  Wbidi-chars-1.c: In function âmainâ:
-  Wbidi-chars-1.c:6:43: warning: unpaired UTF-8 bidirectional control character detected [-Wbidi-chars=]
-      6 |     /*<U+202E> } <U+2066>if (isAdmin)<U+2069> <U+2066> begin admins only */
-        |                                                                           ^
-  Wbidi-chars-1.c:9:28: warning: unpaired UTF-8 bidirectional control character detected [-Wbidi-chars=]
-      9 |     /* end admins only <U+202E> { <U+2066>*/
-        |                                            ^
-
-  Wbidi-chars-11.c:6:15: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-      6 | int LRE_<U+202A>_PDF_\u202c;
-        |                       ^
-  Wbidi-chars-11.c:8:19: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-      8 | int LRE_\u202a_PDF_<U+202C>_;
-        |                   ^
-  Wbidi-chars-11.c:10:28: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-     10 | const char *s1 = "LRE_<U+202A>_PDF_\u202c";
-        |                                    ^
-  Wbidi-chars-11.c:12:33: warning: UTF-8 vs UCN mismatch when closing a context by "U+202C (POP DIRECTIONAL FORMATTING)" [-Wbidi-chars=]
-     12 | const char *s2 = "LRE_\u202a_PDF_<U+202C>";
-        |                                 ^
-
-libcpp/ChangeLog:
-	PR preprocessor/103026
-	* lex.c (maybe_warn_bidi_on_close): Use a rich_location
-	and call set_escape_on_output (true) on it.
-	(maybe_warn_bidi_on_char): Likewise.
-
-Signed-off-by: David Malcolm <dmalcolm@redhat.com>
-
-CVE: CVE-2021-42574
-Upstream-Status: Backport [https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=1a7f2c0774129750fdf73e9f1b78f0ce983c9ab3]
-Signed-off-by: Pgowda <pgowda.cve@gmail.com>
-
----
- libcpp/lex.c | 29 +++++++++++++++++------------
- 1 file changed, 17 insertions(+), 12 deletions(-)
-
-diff --git a/libcpp/lex.c b/libcpp/lex.c
-index 8188e33b07d..2421d6c0f40 100644
---- a/libcpp/lex.c
-+++ b/libcpp/lex.c
-@@ -1427,9 +1427,11 @@ maybe_warn_bidi_on_close (cpp_reader *pfile, const uchar *p)
-       const location_t loc
- 	= linemap_position_for_column (pfile->line_table,
- 				       CPP_BUF_COLUMN (pfile->buffer, p));
--      cpp_warning_with_line (pfile, CPP_W_BIDIRECTIONAL, loc, 0,
--			     "unpaired UTF-8 bidirectional control character "
--			     "detected");
-+      rich_location rich_loc (pfile->line_table, loc);
-+      rich_loc.set_escape_on_output (true);
-+      cpp_warning_at (pfile, CPP_W_BIDIRECTIONAL, &rich_loc,
-+		      "unpaired UTF-8 bidirectional control character "
-+		      "detected");
-     }
-   /* We're done with this context.  */
-   bidi::on_close ();
-@@ -1454,6 +1456,9 @@ maybe_warn_bidi_on_char (cpp_reader *pfile, const uchar *p, bidi::kind kind,
-       const location_t loc
- 	= linemap_position_for_column (pfile->line_table,
- 				       CPP_BUF_COLUMN (pfile->buffer, p));
-+      rich_location rich_loc (pfile->line_table, loc);
-+      rich_loc.set_escape_on_output (true);
-+
-       /* It seems excessive to warn about a PDI/PDF that is closing
- 	 an opened context because we've already warned about the
- 	 opening character.  Except warn when we have a UCN x UTF-8
-@@ -1462,20 +1467,20 @@ maybe_warn_bidi_on_char (cpp_reader *pfile, const uchar *p, bidi::kind kind,
- 	{
- 	  if (warn_bidi == bidirectional_unpaired
- 	      && bidi::current_ctx_ucn_p () != ucn_p)
--	    cpp_warning_with_line (pfile, CPP_W_BIDIRECTIONAL, loc, 0,
--				   "UTF-8 vs UCN mismatch when closing "
--				   "a context by \"%s\"", bidi::to_str (kind));
-+	    cpp_warning_at (pfile, CPP_W_BIDIRECTIONAL, &rich_loc,
-+			    "UTF-8 vs UCN mismatch when closing "
-+			    "a context by \"%s\"", bidi::to_str (kind));
- 	}
-       else if (warn_bidi == bidirectional_any)
- 	{
- 	  if (kind == bidi::kind::PDF || kind == bidi::kind::PDI)
--	    cpp_warning_with_line (pfile, CPP_W_BIDIRECTIONAL, loc, 0,
--				   "\"%s\" is closing an unopened context",
--				   bidi::to_str (kind));
-+	    cpp_warning_at (pfile, CPP_W_BIDIRECTIONAL, &rich_loc,
-+			    "\"%s\" is closing an unopened context",
-+			    bidi::to_str (kind));
- 	  else
--	    cpp_warning_with_line (pfile, CPP_W_BIDIRECTIONAL, loc, 0,
--				   "found problematic Unicode character \"%s\"",
--				   bidi::to_str (kind));
-+	    cpp_warning_at (pfile, CPP_W_BIDIRECTIONAL, &rich_loc,
-+			    "found problematic Unicode character \"%s\"",
-+			    bidi::to_str (kind));
- 	}
-     }
-   /* We're done with this context.  */
--- 
-2.27.0
-

meta/recipes-devtools/gcc/gcc/0009-cpp-honor-sysroot.patch

@@ -22,13 +22,14 @@ gcc/ChangeLog:
     * gcc.c: Pass sysroot options to cpp for preprocessed source
 
 Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+Signed-off-by: Bernhard Rosenkränzer <bernhard.rosenkraenzer.ext@huawei.com> [ported to gcc 12]
 
 [YOCTO #2074]
 
 Upstream-Status: Submitted [https://gcc.gnu.org/pipermail/gcc-patches/2021-October/582725.html]
 ---
  gcc/cp/lang-specs.h | 2 +-
- gcc/gcc.c           | 2 +-
+ gcc/gcc.cc          | 2 +-
  2 files changed, 2 insertions(+), 2 deletions(-)
 
 Index: gcc-11.2.0/gcc/cp/lang-specs.h
@@ -44,10 +45,10 @@ Index: gcc-11.2.0/gcc/cp/lang-specs.h
        "  %{!fsyntax-only:"
        "    %{fmodule-only:%{!S:-o %g.s%V}}"
        "    %{!fmodule-only:%{!fmodule-header*:%(invoke_as)}}}"
-Index: gcc-11.2.0/gcc/gcc.c
+Index: gcc-11.2.0/gcc/gcc.cc
 ===================================================================
---- gcc-11.2.0.orig/gcc/gcc.c
-+++ gcc-11.2.0/gcc/gcc.c
+--- gcc-11.2.0.orig/gcc/gcc.cc
++++ gcc-11.2.0/gcc/gcc.cc
 @@ -1470,7 +1470,7 @@ static const struct compiler default_com
  					   %W{o*:--output-pch=%*}}%V}}}}}}}", 0, 0, 0},
    {".i", "@cpp-output", 0, 0, 0},