Initial GCC 14.1.0 support

+ gcc 14 package version
+ tar.gz and tar.xz checksums
+ patches from gcc13 that can still be applied to gcc14

Signed-off-by: Nik Konyuchenko <spaun2002mobile@gmail.com>

15 files changed, 872 insertions, 1 deletions

diff --git a/packages/gcc/14.1.0/0000-libtool-leave-framework-alone.patch b/packages/gcc/14.1.0/0000-libtool-leave-framework-alone.patch
new file mode 100644
index 00000000..1a86e415
--- /dev/null
+++ b/packages/gcc/14.1.0/0000-libtool-leave-framework-alone.patch
@@ -0,0 +1,18 @@
+---
+ libtool-ldflags |    5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/libtool-ldflags
++++ b/libtool-ldflags
+@@ -36,6 +36,11 @@
+ for arg
+ do
+     case $arg in
++	-framework)
++	    # libtool handles this option. It should not be prefixed with
++	    # -Xcompiler, as that would split it from the argument that
++	    # follows.
++	    ;;
+ 	-f*|--*|-static-lib*|-shared-lib*|-B*)
+ 	    # Libtool does not ascribe any special meaning options
+ 	    # that begin with -f or with a double-dash.  So, it will
diff --git a/packages/gcc/14.1.0/0001-gcc-plugin-POSIX-include-sys-select-h.patch b/packages/gcc/14.1.0/0001-gcc-plugin-POSIX-include-sys-select-h.patch
new file mode 100644
index 00000000..5f9a07a2
--- /dev/null
+++ b/packages/gcc/14.1.0/0001-gcc-plugin-POSIX-include-sys-select-h.patch
@@ -0,0 +1,14 @@
+---
+ libcc1/connection.cc |    1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/libcc1/connection.cc
++++ b/libcc1/connection.cc
+@@ -21,6 +21,7 @@
+ #include <string>
+ #include <unistd.h>
+ #include <sys/types.h>
++#include <sys/select.h>
+ #include <string.h>
+ #include <errno.h>
+ #include "marshall.hh"
diff --git a/packages/gcc/14.1.0/0002-arm-softfloat-libgcc.patch b/packages/gcc/14.1.0/0002-arm-softfloat-libgcc.patch
new file mode 100644
index 00000000..d9800365
--- /dev/null
+++ b/packages/gcc/14.1.0/0002-arm-softfloat-libgcc.patch
@@ -0,0 +1,31 @@
+---
+ gcc/config/arm/linux-elf.h |    2 +-
+ libgcc/config/arm/t-linux  |    7 ++++++-
+ 2 files changed, 7 insertions(+), 2 deletions(-)
+
+--- a/gcc/config/arm/linux-elf.h
++++ b/gcc/config/arm/linux-elf.h
+@@ -58,7 +58,7 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+--- a/libgcc/config/arm/t-linux
++++ b/libgcc/config/arm/t-linux
+@@ -1,6 +1,11 @@
+ LIB1ASMSRC = arm/lib1funcs.S
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+-	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3
++	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3 \
++	_arm_addsubdf3 _arm_addsubsf3 \
++	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++	_arm_fixsfsi _arm_fixunssfsi
+ 
+ # Just for these, we omit the frame pointer since it makes such a big
+ # difference.
diff --git a/packages/gcc/14.1.0/0003-libgcc-disable-split-stack-nothreads.patch b/packages/gcc/14.1.0/0003-libgcc-disable-split-stack-nothreads.patch
new file mode 100644
index 00000000..df91a9ff
--- /dev/null
+++ b/packages/gcc/14.1.0/0003-libgcc-disable-split-stack-nothreads.patch
@@ -0,0 +1,17 @@
+disable split-stack for non-thread builds
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+---
+ libgcc/config/t-stack |    2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/libgcc/config/t-stack
++++ b/libgcc/config/t-stack
+@@ -1,4 +1,6 @@
+ # Makefile fragment to provide generic support for -fsplit-stack.
+ # This should be used in config.host for any host which supports
+ # -fsplit-stack.
++ifeq ($(enable_threads),yes)
+ LIB2ADD_ST += $(srcdir)/generic-morestack.c $(srcdir)/generic-morestack-thread.c
++endif
diff --git a/packages/gcc/14.1.0/0004-Remove-use-of-include_next-from-c-headers.patch b/packages/gcc/14.1.0/0004-Remove-use-of-include_next-from-c-headers.patch
new file mode 100644
index 00000000..429d3bd3
--- /dev/null
+++ b/packages/gcc/14.1.0/0004-Remove-use-of-include_next-from-c-headers.patch
@@ -0,0 +1,262 @@
+From fc4aaba8a3b8fe7815e103cc20f2a36d5de7e8ab Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Sun, 24 Jan 2021 14:20:33 -0800
+Subject: [PATCH] Remove use of include_next from c++ headers
+
+Using include_next bypasses the default header search path and lets
+files later in the include path take priority over earlier files.
+
+This makes replacing libc impossible as the default libc headers will
+occur after the libstdc++ headers, and so be picked up in place of
+headers inserted at the begining of the search path or appended to the
+end of the search path.
+
+Using include_next is a hack to work-around broken combinations of
+libraries, and is not necessary in a well constructed toolchain.
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ libstdc++-v3/include/bits/std_abs.h   |    4 ++--
+ libstdc++-v3/include/c/cassert        |    2 +-
+ libstdc++-v3/include/c/cctype         |    2 +-
+ libstdc++-v3/include/c/cerrno         |    2 +-
+ libstdc++-v3/include/c/cfloat         |    2 +-
+ libstdc++-v3/include/c/climits        |    2 +-
+ libstdc++-v3/include/c/clocale        |    2 +-
+ libstdc++-v3/include/c/cmath          |    2 +-
+ libstdc++-v3/include/c/csetjmp        |    2 +-
+ libstdc++-v3/include/c/csignal        |    2 +-
+ libstdc++-v3/include/c/cstdarg        |    2 +-
+ libstdc++-v3/include/c/cstddef        |    2 +-
+ libstdc++-v3/include/c/cstdio         |    2 +-
+ libstdc++-v3/include/c/cstdlib        |    2 +-
+ libstdc++-v3/include/c/cstring        |    2 +-
+ libstdc++-v3/include/c/ctime          |    2 +-
+ libstdc++-v3/include/c/cuchar         |    2 +-
+ libstdc++-v3/include/c/cwchar         |    2 +-
+ libstdc++-v3/include/c/cwctype        |    2 +-
+ libstdc++-v3/include/c_global/cmath   |    2 +-
+ libstdc++-v3/include/c_global/cstdlib |    2 +-
+ 21 files changed, 22 insertions(+), 22 deletions(-)
+
+--- a/libstdc++-v3/include/bits/std_abs.h
++++ b/libstdc++-v3/include/bits/std_abs.h
+@@ -35,9 +35,9 @@
+ #include <bits/c++config.h>
+ 
+ #define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+-#include_next <stdlib.h>
++#include <stdlib.h>
+ #ifdef __CORRECT_ISO_CPP_MATH_H_PROTO
+-# include_next <math.h>
++# include <math.h>
+ #endif
+ #undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ 
+--- a/libstdc++-v3/include/c/cassert
++++ b/libstdc++-v3/include/c/cassert
+@@ -31,4 +31,4 @@
+ #pragma GCC system_header
+ 
+ #include <bits/c++config.h>
+-#include_next <assert.h>
++#include <assert.h>
+--- a/libstdc++-v3/include/c/cctype
++++ b/libstdc++-v3/include/c/cctype
+@@ -31,6 +31,6 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <ctype.h>
++#include <ctype.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cerrno
++++ b/libstdc++-v3/include/c/cerrno
+@@ -41,7 +41,7 @@
+ #pragma GCC system_header
+ 
+ #include <bits/c++config.h>
+-#include_next <errno.h>
++#include <errno.h>
+ 
+ // Adhere to section 17.4.1.2 clause 5 of ISO 14882:1998
+ #ifndef errno
+--- a/libstdc++-v3/include/c/cfloat
++++ b/libstdc++-v3/include/c/cfloat
+@@ -32,6 +32,6 @@
+ #pragma GCC system_header
+ 
+ #include <bits/c++config.h>
+-#include_next <float.h>
++#include <float.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/climits
++++ b/libstdc++-v3/include/c/climits
+@@ -32,6 +32,6 @@
+ #pragma GCC system_header
+ 
+ #include <bits/c++config.h>
+-#include_next <limits.h>
++#include <limits.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/clocale
++++ b/libstdc++-v3/include/c/clocale
+@@ -31,6 +31,6 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <locale.h>
++#include <locale.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cmath
++++ b/libstdc++-v3/include/c/cmath
+@@ -33,7 +33,7 @@
+ 
+ #include <bits/c++config.h>
+ 
+-#include_next <math.h>
++#include <math.h>
+ 
+ // Get rid of those macros defined in <math.h> in lieu of real functions.
+ #undef abs
+--- a/libstdc++-v3/include/c/csetjmp
++++ b/libstdc++-v3/include/c/csetjmp
+@@ -31,7 +31,7 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <setjmp.h>
++#include <setjmp.h>
+ 
+ // Get rid of those macros defined in <setjmp.h> in lieu of real functions.
+ #undef longjmp
+--- a/libstdc++-v3/include/c/csignal
++++ b/libstdc++-v3/include/c/csignal
+@@ -31,6 +31,6 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <signal.h>
++#include <signal.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cstdarg
++++ b/libstdc++-v3/include/c/cstdarg
+@@ -32,6 +32,6 @@
+ #pragma GCC system_header
+ 
+ #undef __need___va_list
+-#include_next <stdarg.h>
++#include <stdarg.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cstddef
++++ b/libstdc++-v3/include/c/cstddef
+@@ -35,6 +35,6 @@
+ #define __need_ptrdiff_t
+ #define __need_NULL
+ #define __need_offsetof
+-#include_next <stddef.h>
++#include <stddef.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cstdio
++++ b/libstdc++-v3/include/c/cstdio
+@@ -31,7 +31,7 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <stdio.h>
++#include <stdio.h>
+ 
+ // Get rid of those macros defined in <stdio.h> in lieu of real functions.
+ #undef clearerr
+--- a/libstdc++-v3/include/c/cstdlib
++++ b/libstdc++-v3/include/c/cstdlib
+@@ -31,6 +31,6 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <stdlib.h>
++#include <stdlib.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cstring
++++ b/libstdc++-v3/include/c/cstring
+@@ -31,6 +31,6 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <string.h>
++#include <string.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/ctime
++++ b/libstdc++-v3/include/c/ctime
+@@ -31,6 +31,6 @@
+ 
+ #pragma GCC system_header
+ 
+-#include_next <time.h>
++#include <time.h>
+ 
+ #endif
+--- a/libstdc++-v3/include/c/cuchar
++++ b/libstdc++-v3/include/c/cuchar
+@@ -39,7 +39,7 @@
+ #include <cwchar>
+ 
+ #if _GLIBCXX_USE_C11_UCHAR_CXX11
+-# include_next <uchar.h>
++# include <uchar.h>
+ #endif
+ 
+ #endif // C++11
+--- a/libstdc++-v3/include/c/cwchar
++++ b/libstdc++-v3/include/c/cwchar
+@@ -36,7 +36,7 @@
+ #include <ctime>
+ 
+ #if _GLIBCXX_HAVE_WCHAR_H
+-#include_next <wchar.h>
++#include <wchar.h>
+ #endif
+ 
+ // Need to do a bit of trickery here with mbstate_t as char_traits
+--- a/libstdc++-v3/include/c/cwctype
++++ b/libstdc++-v3/include/c/cwctype
+@@ -34,7 +34,7 @@
+ #include <bits/c++config.h>
+ 
+ #if _GLIBCXX_HAVE_WCTYPE_H
+-#include_next <wctype.h>
++#include <wctype.h>
+ #endif
+ 
+ #endif
+--- a/libstdc++-v3/include/c_global/cmath
++++ b/libstdc++-v3/include/c_global/cmath
+@@ -44,7 +44,7 @@
+ #include <bits/cpp_type_traits.h>
+ #include <ext/type_traits.h>
+ #define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+-#include_next <math.h>
++#include <math.h>
+ #undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #include <bits/std_abs.h>
+ 
+--- a/libstdc++-v3/include/c_global/cstdlib
++++ b/libstdc++-v3/include/c_global/cstdlib
+@@ -76,7 +76,7 @@
+ // Need to ensure this finds the C library's <stdlib.h> not a libstdc++
+ // wrapper that might already be installed later in the include search path.
+ #define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+-#include_next <stdlib.h>
++#include <stdlib.h>
+ #undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #include <bits/std_abs.h>
+ 
diff --git a/packages/gcc/14.1.0/0005-Allow-default-libc-to-be-specified-to-configure.patch b/packages/gcc/14.1.0/0005-Allow-default-libc-to-be-specified-to-configure.patch
new file mode 100644
index 00000000..47f56953
--- /dev/null
+++ b/packages/gcc/14.1.0/0005-Allow-default-libc-to-be-specified-to-configure.patch
@@ -0,0 +1,134 @@
+From ffb10db6fa080e4c225e16928aec052d4c0baa95 Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Fri, 2 Sep 2022 23:07:05 -0700
+Subject: [PATCH] Allow default libc to be specified to configure
+
+The default C library is normally computed based on the target
+triplet. However, for embedded systems, it can be useful to leave the
+triplet alone while changing which C library is used by default. Other
+C libraries may still be available on the system so the compiler and
+can be used by specifying suitable include and library paths at build
+time.
+
+If an unknown --with-default-libc= value is provided, emit an error
+and stop.
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ gcc/config.gcc   |   48 ++++++++++++++++++++++++++++++++++++++++--------
+ gcc/configure.ac |    4 ++++
+ 2 files changed, 44 insertions(+), 8 deletions(-)
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -664,6 +664,8 @@
+ # Common C libraries.
+ tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
+ 
++default_libc=""
++
+ # 32-bit x86 processors supported by --with-arch=.  Each processor
+ # MUST be separated by exactly one space.
+ x86_archs="athlon athlon-4 athlon-fx athlon-mp athlon-tbird \
+@@ -870,16 +872,16 @@
+   esac
+   case $target in
+     *-*-*android*)
+-      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_BIONIC"
++      default_libc=LIBC_BIONIC
+       ;;
+     *-*-*uclibc* | *-*-uclinuxfdpiceabi)
+-      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
++      default_libc=LIBC_UCLIBC
+       ;;
+     *-*-*musl*)
+-      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
++      default_libc=LIBC_MUSL
+       ;;
+     *)
+-      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
++      default_libc=LIBC_GLIBC
+       ;;
+   esac
+   # Assume that glibc or uClibc or Bionic are being used and so __cxa_atexit
+@@ -988,7 +990,8 @@
+   case ${enable_threads} in
+     "" | yes | posix) thread_file='posix' ;;
+   esac
+-  tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC SINGLE_LIBC"
++  tm_defines="$tm_defines SINGLE_LIBC"
++  default_libc=LIBC_UCLIBC
+   ;;
+ *-*-rdos*)
+   use_gcc_stdint=wrap
+@@ -1652,13 +1655,13 @@
+ 
+ 		case ${target} in
+ 		    csky-*-linux-gnu*)
+-			tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
++			default_libc=LIBC_GLIBC
+ 			# Force .init_array support.  The configure script cannot always
+ 			# automatically detect that GAS supports it, yet we require it.
+ 			gcc_cv_initfini_array=yes
+ 			;;
+ 		    csky-*-linux-uclibc*)
+-			tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
++			default_libc=LIBC_UCLIBC
+ 			default_use_cxa_atexit=no
+ 			;;
+ 		    *)
+@@ -3038,7 +3041,7 @@
+ 	tmake_file="${tmake_file} t-linux rs6000/t-linux64 rs6000/t-fprules rs6000/t-ppccomm"
+ 	tmake_file="${tmake_file} rs6000/t-vxworks"
+ 
+-	tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
++	default_libc=LIBC_GLIBC
+ 	extra_objs="$extra_objs linux.o rs6000-linux.o"
+ 	;;
+ powerpc-wrs-vxworks*)
+@@ -5879,3 +5882,32 @@
+ 	fi
+ 	;;
+ esac
++
++case "${with_default_libc}" in
++glibc)
++    default_libc=LIBC_GLIBC
++    ;;
++uclibc)
++    default_libc=LIBC_UCLIBC
++    ;;
++bionic)
++    default_libc=LIBC_BIONIC
++    ;;
++musl)
++    default_libc=LIBC_MUSL
++    ;;
++"")
++    ;;
++*)
++    echo "Unknown libc in --with-default-libc=$with_default_libc" 1>&2
++    exit 1
++    ;;
++esac
++
++case "$default_libc" in
++"")
++        ;;
++*)
++	tm_defines="$tm_defines DEFAULT_LIBC=$default_libc"
++	;;
++esac
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -2502,6 +2502,10 @@
+ fi
+ AC_SUBST(inhibit_libc)
+ 
++AC_ARG_WITH(default-libc,
++	[AS_HELP_STRING([--with-default-libc],
++			[Use specified default C library])])
++
+ # When building gcc with a cross-compiler, we need to adjust things so
+ # that the generator programs are still built with the native compiler.
+ # Also, we cannot run fixincludes.
diff --git a/packages/gcc/14.1.0/0006-driver-Extend-getenv-function-to-allow-default-value.patch b/packages/gcc/14.1.0/0006-driver-Extend-getenv-function-to-allow-default-value.patch
new file mode 100644
index 00000000..4c73bd6f
--- /dev/null
+++ b/packages/gcc/14.1.0/0006-driver-Extend-getenv-function-to-allow-default-value.patch
@@ -0,0 +1,95 @@
+From fd6aa8e67aec185b0d84ba9551fd38c90c9d6d8a Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Fri, 26 Aug 2022 14:30:03 -0700
+Subject: [PATCH] driver: Extend 'getenv' function to allow default value
+
+Right now, a missing environment variable provided to the 'getenv'
+function in a .specs file causes a fatal error. That makes writing a
+spec file that uses the GCC_EXEC_PREFIX value difficult as that
+variable is only set when the driver has been relocated, but not when
+run from the defined location. This makes building a relocatable
+toolchain difficult to extend to other ancilary pieces which use specs
+files to locate header and library files adjacent to the toolchain.
+
+This patch adds an optional third argument to the getenv function that
+can be used to fall back to the standard installation path when the
+driver hasn't set GCC_EXEC_PREFIX in the environment.
+
+For example, if an alternate C library is installed in
+${prefix}/extra, then this change allows the specs file to locate that
+relative to the gcc directory, if gcc is located in the original
+installation directory (which would leave GCC_EXEC_PREFIX unset), or
+if the gcc tree has been moved to a different location (where gcc
+would set GCC_EXEC_PREFIX itself):
+
+*cpp:
+-isystem %:getenv(GCC_EXEC_PREFIX ../../extra/include ${prefix}/extra/include)
+
+I considered changing the behavior of either the %R sequence so that
+it had a defined behavior when there was no sysroot defined, or making
+the driver always set the GCC_EXEC_PREFIX environment variable and
+decided that the approach of adding functionality to getenv where it
+was previously invalid would cause the least potential for affecting
+existing usage.
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ gcc/doc/invoke.texi |   18 +++++++++++-------
+ gcc/gcc.cc          |   10 +++++++++-
+ 2 files changed, 20 insertions(+), 8 deletions(-)
+
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -34814,17 +34814,21 @@
+ 
+ @table @code
+ @item @code{getenv}
+-The @code{getenv} spec function takes two arguments: an environment
+-variable name and a string.  If the environment variable is not
+-defined, a fatal error is issued.  Otherwise, the return value is the
+-value of the environment variable concatenated with the string.  For
+-example, if @env{TOPDIR} is defined as @file{/path/to/top}, then:
++
++The @code{getenv} spec function takes two or three arguments: an
++environment variable name, a string and an optional default value.  If
++the environment variable is not defined and a default value is
++provided, that is used as the return value; otherwise a fatal error is
++issued.  Otherwise, the return value is the value of the environment
++variable concatenated with the string.  For example, if @env{TOPDIR}
++is defined as @file{/path/to/top}, then:
+ 
+ @smallexample
+-%:getenv(TOPDIR /include)
++%:getenv(TOPDIR /include /path/to/default/include)
+ @end smallexample
+ 
+-expands to @file{/path/to/top/include}.
++expands to @file{/path/to/top/include}. If @env{TOPDIR} is not
++defined, then this expands to @file{/path/to/default/include}.
+ 
+ @item @code{if-exists}
+ The @code{if-exists} spec function takes one argument, an absolute
+--- a/gcc/gcc.cc
++++ b/gcc/gcc.cc
+@@ -10155,12 +10155,20 @@
+   char *ptr;
+   size_t len;
+ 
+-  if (argc != 2)
++  if (argc != 2 && argc != 3)
+     return NULL;
+ 
+   varname = argv[0];
+   value = env.get (varname);
+ 
++  if (!value && argc == 3)
++    {
++      value = argv[2];
++      result = XNEWVAR(char, strlen(value) + 1);
++      strcpy(result, value);
++      return result;
++    }
++
+   /* If the variable isn't defined and this is allowed, craft our expected
+      return value.  Assume variable names used in specs strings don't contain
+      any active spec character so don't need escaping.  */
diff --git a/packages/gcc/14.1.0/0007-Add-newlib-and-picolibc-as-default-C-library-choices.patch b/packages/gcc/14.1.0/0007-Add-newlib-and-picolibc-as-default-C-library-choices.patch
new file mode 100644
index 00000000..3a36594d
--- /dev/null
+++ b/packages/gcc/14.1.0/0007-Add-newlib-and-picolibc-as-default-C-library-choices.patch
@@ -0,0 +1,37 @@
+From be5d482de0099012288e617af0583772fac21714 Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Tue, 23 Aug 2022 22:12:06 -0700
+Subject: [PATCH] Add newlib and picolibc as default C library choices
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ gcc/config.gcc |   11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -662,7 +662,7 @@
+ esac
+ 
+ # Common C libraries.
+-tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
++tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4 LIBC_NEWLIB=5 LIBC_PICOLIBC=6"
+ 
+ default_libc=""
+ 
+@@ -5896,6 +5896,15 @@
+ musl)
+     default_libc=LIBC_MUSL
+     ;;
++newlib)
++    # Newlib configurations don't set the DEFAULT_LIBC variable, so
++    # avoid changing those by allowing --with-default-libc=newlib but
++    # not actually setting the DEFAULT_LIBC variable.
++    default_libc=
++    ;;
++picolibc)
++    default_libc=LIBC_PICOLIBC
++    ;;
+ "")
+     ;;
+ *)
diff --git a/packages/gcc/14.1.0/0008-Support-picolibc-targets.patch b/packages/gcc/14.1.0/0008-Support-picolibc-targets.patch
new file mode 100644
index 00000000..0f8cc2f9
--- /dev/null
+++ b/packages/gcc/14.1.0/0008-Support-picolibc-targets.patch
@@ -0,0 +1,33 @@
+From c9c22fe9ce182e48282e2bf0a8830381d3c55dd4 Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Sun, 12 Feb 2023 14:23:32 -0800
+Subject: [PATCH] Support picolibc targets
+
+Match *-picolibc-* and select picolibc as the default C library, plus continuing to use
+the newlib-based logic for other configuration items.
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ gcc/config.gcc |   11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -1116,6 +1116,17 @@
+       ;;
+   esac
+   ;;
++*-picolibc-*)
++  # __cxa_atexit is provided.
++  default_use_cxa_atexit=yes
++  use_gcc_stdint=wrap
++  default_libc=LIBC_PICOLIBC
++  case "${with_newlib}-${with_headers}" in
++  no-no) use_gcc_stdint=provide ;;
++  *) ;;
++  esac
++  ;;
++
+ *-*-elf|arc*-*-elf*)
+   # Assume that newlib is being used and so __cxa_atexit is provided.
+   default_use_cxa_atexit=yes
diff --git a/packages/gcc/14.1.0/0009-gcc-Allow-g-to-work-differently-from-gcc.patch b/packages/gcc/14.1.0/0009-gcc-Allow-g-to-work-differently-from-gcc.patch
new file mode 100644
index 00000000..57a22f98
--- /dev/null
+++ b/packages/gcc/14.1.0/0009-gcc-Allow-g-to-work-differently-from-gcc.patch
@@ -0,0 +1,60 @@
+From ef327a7c2a36b63e8a372bef88e3700460b51c34 Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Sat, 11 Feb 2023 23:07:08 -0800
+Subject: [PATCH] gcc: Allow g++ to work differently from gcc
+
+Compile gcc.cc with -DIN_GPP defined when building g++ so that the
+code can respond appropriately for the default target language. This
+allows the driver to customize the specs used, selecting different
+linker scripts, adjusting the use of crtbegin.o/crtend.o etc.
+
+By default, this change has no effect; targets need to explicitly
+check for IN_GPP to have alternate behavior.
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ gcc/cp/Make-lang.in |    7 ++++++-
+ gcc/gpp.cc          |   21 +++++++++++++++++++++
+ 2 files changed, 27 insertions(+), 1 deletion(-)
+ create mode 100644 gcc/gpp.cc
+
+--- a/gcc/cp/Make-lang.in
++++ b/gcc/cp/Make-lang.in
+@@ -77,7 +77,12 @@
+ endif
+ 
+ # Create the compiler driver for g++.
+-GXX_OBJS = $(GCC_OBJS) cp/g++spec.o
++GXX_OBJS = $(GCC_OBJS:gcc.o=gpp.o) cp/g++spec.o
++
++CFLAGS-gpp.o = $(CFLAGS-gcc.o)
++gpp.o: $(BASEVER)
++gpp.o: gcc.o
++
+ xg++$(exeext): $(GXX_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a $(LIBDEPS)
+ 	+$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
+ 	  $(GXX_OBJS) $(EXTRA_GCC_OBJS) libcommon-target.a \
+--- /dev/null
++++ b/gcc/gpp.cc
+@@ -0,0 +1,21 @@
++/* Compiler driver program that can handle many languages.
++   Copyright (C) 1987-2022 Free Software Foundation, Inc.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify it under
++the terms of the GNU General Public License as published by the Free
++Software Foundation; either version 3, or (at your option) any later
++version.
++
++GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++WARRANTY; without even the implied warranty of MERCHANTABILITY or
++FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.  */
++
++#define IN_GPP
++#include "gcc.cc"
diff --git a/packages/gcc/14.1.0/0013-libgcc-Exclude-UCLIBC-from-GLIBC-thread-check.patch b/packages/gcc/14.1.0/0013-libgcc-Exclude-UCLIBC-from-GLIBC-thread-check.patch
new file mode 100644
index 00000000..349f280a
--- /dev/null
+++ b/packages/gcc/14.1.0/0013-libgcc-Exclude-UCLIBC-from-GLIBC-thread-check.patch
@@ -0,0 +1,35 @@
+From d901175d36221fbf79a0eb8305823b88243b829c Mon Sep 17 00:00:00 2001
+From: Chris Packham <chris.packham@alliedtelesis.co.nz>
+Date: Thu, 7 Sep 2023 19:26:49 +1200
+Subject: [PATCH] libgcc: Exclude UCLIBC from GLIBC thread check
+
+UBLIBC defines __GLIBC__ but also marks __pthread_key_create() as
+protected. Leading to link errors with newer binutils such as:
+
+  ld.bfd: isl_test_cpp17.o: non-canonical reference to canonical protected function `__pthread_key_create' in x86_64-multilib-linux-uclibc/sysroot/lib64/libc.so.1
+  ld.bfd: failed to set dynamic section sizes: bad value
+
+Add a condition on !__UCLIBC__ when selecting a symbol to detect pthread
+usage so it picks the intended pthread_cancel().
+
+Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
+---
+ libgcc/gthr-posix.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libgcc/gthr-posix.h b/libgcc/gthr-posix.h
+index aebcfdd9f4ca..087a631d308d 100644
+--- a/libgcc/gthr-posix.h
++++ b/libgcc/gthr-posix.h
+@@ -233,7 +233,7 @@ __gthread_active_p (void)
+    library does not provide pthread_cancel, so we do use pthread_create
+    there (and interceptor libraries lose).  */
+ 
+-#ifdef __GLIBC__
++#if defined(__GLIBC__) && !defined(__UCLIBC__)
+ __gthrw2(__gthrw_(__pthread_key_create),
+ 	 __pthread_key_create,
+ 	 pthread_key_create)
+-- 
+2.42.0
+
diff --git a/packages/gcc/14.1.0/chksum b/packages/gcc/14.1.0/chksum
new file mode 100644
index 00000000..7adcc215
--- /dev/null
+++ b/packages/gcc/14.1.0/chksum
@@ -0,0 +1,8 @@
+md5 gcc-14.1.0.tar.gz 195a75ef5205a75b6bee49c8fcfc564b
+sha1 gcc-14.1.0.tar.gz 2796a00db55368be593f122df38499742216c9bc
+sha256 gcc-14.1.0.tar.gz a0be066c02775002a0fa65ad3c65fb56a8bfd923d072a26ed148c0439ecdb68f
+sha512 gcc-14.1.0.tar.gz d1ef7c8ba4134e7c64f715665f41eef5af30662352503442241a73772ce03de804ea4ca667353731b67c9fc66bdc2faec2bec3fd3d5bce1826c8ad545698345b
+md5 gcc-14.1.0.tar.xz 24195dca80ded5e0551b533f46a4481d
+sha1 gcc-14.1.0.tar.xz 0aec8d432b8473559942a45c12459a5db3a04618
+sha256 gcc-14.1.0.tar.xz e283c654987afe3de9d8080bc0bd79534b5ca0d681a73a11ff2b5d3767426840
+sha512 gcc-14.1.0.tar.xz e9e224f2b26646fcf038d28dfa08b94c623bc57941f99894a321d01c600f7c68aff6b8837fd25e73e540de1f8de5606e98694a62cdcdfb525ce768b3ef6879ea
diff --git a/packages/gcc/14.1.0/experimental/0001-picolibc-Add-custom-spec-file-fragments-for-using-pi.patch b/packages/gcc/14.1.0/experimental/0001-picolibc-Add-custom-spec-file-fragments-for-using-pi.patch
new file mode 100644
index 00000000..487a28c3
--- /dev/null
+++ b/packages/gcc/14.1.0/experimental/0001-picolibc-Add-custom-spec-file-fragments-for-using-pi.patch
@@ -0,0 +1,127 @@
+From b0f9ac365f91952f6f920c8e6aa4ddb819f47cc8 Mon Sep 17 00:00:00 2001
+From: Keith Packard <keithp@keithp.com>
+Date: Tue, 23 Aug 2022 22:13:08 -0700
+Subject: [PATCH] picolibc: Add custom spec file fragments for using
+ picolibc
+
+The '--oslib=' option allows targets to insert an OS library after the
+C library in the LIB_PATH spec file fragment. This library maps a few
+POSIX APIs used by picolibc to underlying system capabilities.
+
+The '--crt0=' option allows targets to use an alternate crt0 in place
+of the usual one as provided by Picolibc.
+
+For example, picolibc provides 'libsemihost' and 'crt0-semihost.o' on
+various targets which maps some POSIX APIs to semihosting capabilities
+and signals the semihosting environment when 'main' returns. These
+would be used by specifying --oslib=semihost --crt0=semihost.
+
+This patch also takes advantage of the IN_GPP conditional when
+building g++ to elide exception handling contents from the executable
+when not linking with the g++ driver.
+
+Signed-off-by: Keith Packard <keithp@keithp.com>
+---
+ gcc/config.gcc          |    7 +++++++
+ gcc/config/picolibc.h   |   44 ++++++++++++++++++++++++++++++++++++++++++++
+ gcc/config/picolibc.opt |   33 +++++++++++++++++++++++++++++++++
+ 3 files changed, 84 insertions(+)
+ create mode 100644 gcc/config/picolibc.h
+ create mode 100644 gcc/config/picolibc.opt
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -5931,3 +5931,10 @@
+ 	tm_defines="$tm_defines DEFAULT_LIBC=$default_libc"
+ 	;;
+ esac
++
++case "$default_libc" in
++    LIBC_PICOLIBC)
++	extra_options="${extra_options} picolibc.opt"
++	tm_file="${tm_file} picolibc.h"
++	;;
++esac
+--- /dev/null
++++ b/gcc/config/picolibc.h
+@@ -0,0 +1,44 @@
++/* Configuration common to all targets running Picolibc.
++   Copyright (C) 2023 Free Software Foundation, Inc.
++
++   This file is part of GCC.
++
++   GCC is free software; you can redistribute it and/or modify it
++   under the terms of the GNU General Public License as published
++   by the Free Software Foundation; either version 3, or (at your
++   option) any later version.
++
++   GCC is distributed in the hope that it will be useful, but WITHOUT
++   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
++   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
++   License for more details.
++
++   Under Section 7 of GPL version 3, you are granted additional
++   permissions described in the GCC Runtime Library Exception, version
++   3.1, as published by the Free Software Foundation.
++
++   You should have received a copy of the GNU General Public License and
++   a copy of the GCC Runtime Library Exception along with this program;
++   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
++   <http://www.gnu.org/licenses/>.  */
++
++#ifdef IN_GPP
++#define PICOLIBC_LD "picolibcpp.ld"
++#define PICOLIBC_BEGIN " crtbegin%O%s"
++#define PICOLIBC_END   "crtend%O%s"
++#else
++#define PICOLIBC_LD "picolibc.ld"
++#define PICOLIBC_BEGIN ""
++#define PICOLIBC_END   ""
++#endif
++
++#undef  LIB_SPEC
++#define LIB_SPEC "%{!T:-T" PICOLIBC_LD "} --start-group -lc %{-oslib=*:-l%*} %(libgcc) --end-group"
++
++#undef  STARTFILE_SPEC
++#define STARTFILE_SPEC "%{-crt0=*:crt0-%*%O%s; :crt0%O%s}" PICOLIBC_BEGIN
++
++#undef  ENDFILE_SPEC
++#define ENDFILE_SPEC PICOLIBC_END
++
++#define EH_TABLES_CAN_BE_READ_ONLY 1
+--- /dev/null
++++ b/gcc/config/picolibc.opt
+@@ -0,0 +1,33 @@
++; Processor-independent options for picolibc.
++;
++; Copyright (C) 2022 Free Software Foundation, Inc.
++;
++; This file is part of GCC.
++;
++; GCC is free software; you can redistribute it and/or modify it under
++; the terms of the GNU General Public License as published by the Free
++; Software Foundation; either version 3, or (at your option) any later
++; version.
++;
++; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
++; WARRANTY; without even the implied warranty of MERCHANTABILITY or
++; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
++; for more details.
++;
++; You should have received a copy of the GNU General Public License
++; along with GCC; see the file COPYING3.  If not see
++; <http://www.gnu.org/licenses/>.
++
++-oslib
++Driver Separate Alias(-oslib=)
++
++-oslib=
++Driver Joined
++Specify an OS support library to load after libc.
++
++-crt0
++Driver Separate Alias(-crt0=)
++
++-crt0=
++Driver Joined
++Specify an alternate startup file.
diff --git a/packages/gcc/14.1.0/version.desc b/packages/gcc/14.1.0/version.desc
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/packages/gcc/14.1.0/version.desc
diff --git a/packages/gcc/package.desc b/packages/gcc/package.desc
index 924067b7..689c5395 100644
--- a/packages/gcc/package.desc
+++ b/packages/gcc/package.desc
@@ -2,5 +2,5 @@ repository='git git://gcc.gnu.org/git/gcc.git'
 mirrors='$(CT_Mirrors GNU gcc/gcc-${CT_GCC_VERSION}) $(CT_Mirrors sourceware gcc/releases/gcc-${CT_GCC_VERSION})'
 relevantpattern='4.*|. *|.'
 origin='GNU'
-milestones='4.9 5 6 7 8 9 10 11 12 13'
+milestones='4.9 5 6 7 8 9 10 11 12 13 14'
 archive_formats='.tar.xz .tar.gz'