Toolchain: GCC 15

AK/RefCounted.h

@@ -8,6 +8,7 @@
 
 #include <AK/Assertions.h>
 #include <AK/Checked.h>
+#include <AK/Diagnostics.h>
 #include <AK/Noncopyable.h>
 #include <AK/Platform.h>
 
@@ -62,7 +63,9 @@ class RefCounted : public RefCountedBase {
         if (new_ref_count == 0) {
             if constexpr (requires { that->will_be_destroyed(); })
                 that->will_be_destroyed();
-            delete static_cast<T const*>(this);
+            // FIXME: GCC 15.1.0 seems to think this is reachable with non-heap objects
+            //        in some possibly Variant related cases.
+            AK_IGNORE_DIAGNOSTIC("-Wfree-nonheap-object", delete static_cast<T const*>(this);)
             return true;
         }
         return false;

AK/Types.h

@@ -177,9 +177,9 @@ static constexpr FlatPtr explode_byte(u8 b)
 {
     FlatPtr value = b;
     if constexpr (sizeof(FlatPtr) == 4)
-        return value << 24 | value << 16 | value << 8 | value;
+        return value * 0x01010101;
     else if constexpr (sizeof(FlatPtr) == 8)
-        return value << 56 | value << 48 | value << 40 | value << 32 | value << 24 | value << 16 | value << 8 | value;
+        return value * 0x01010101'01010101;
 }
 
 static_assert(explode_byte(0xff) == static_cast<FlatPtr>(0xffffffffffffffffull));

CMakeLists.txt

@@ -17,7 +17,7 @@ if(NOT CMAKE_SYSTEM_NAME STREQUAL "SerenityOS")
 endif()
 
 # Check for toolchain mismatch, user might need to rebuild toolchain
-set(GCC_VERSION "14.2.0")
+set(GCC_VERSION "15.1.0")
 set(LLVM_VERSION "20.1.0")
 if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     set(EXPECTED_COMPILER_VERSION "${GCC_VERSION}")

Kernel/Library/MiniStdLib.cpp

@@ -16,18 +16,16 @@ void* memcpy(void* dest_ptr, void const* src_ptr, size_t n)
     // FIXME: Support starting at an unaligned address.
     if (!(dest & 0x3) && !(src & 0x3) && n >= 12) {
         size_t size_ts = n / sizeof(size_t);
+        n -= size_ts * sizeof(size_t);
         asm volatile(
             "rep movsq\n"
-            : "=S"(src), "=D"(dest)
-            : "S"(src), "D"(dest), "c"(size_ts)
-            : "memory");
-        n -= size_ts * sizeof(size_t);
+            : "+S"(src), "+D"(dest), "+c"(size_ts)::"memory");
         if (n == 0)
             return dest_ptr;
     }
     asm volatile(
-        "rep movsb\n" ::"S"(src), "D"(dest), "c"(n)
-        : "memory");
+        "rep movsb\n"
+        : "+S"(src), "+D"(dest), "+c"(n)::"memory");
 #else
     u8* pd = (u8*)dest_ptr;
     u8 const* ps = (u8 const*)src_ptr;
@@ -57,19 +55,19 @@ void* memset(void* dest_ptr, int c, size_t n)
     if (!(dest & 0x3) && n >= 12) {
         size_t size_ts = n / sizeof(size_t);
         size_t expanded_c = explode_byte((u8)c);
+        n -= size_ts * sizeof(size_t);
         asm volatile(
             "rep stosq\n"
-            : "=D"(dest)
-            : "D"(dest), "c"(size_ts), "a"(expanded_c)
+            : "+D"(dest), "+c"(size_ts)
+            : "a"(expanded_c)
             : "memory");
-        n -= size_ts * sizeof(size_t);
         if (n == 0)
             return dest_ptr;
     }
     asm volatile(
         "rep stosb\n"
-        : "=D"(dest), "=c"(n)
-        : "0"(dest), "1"(n), "a"(c)
+        : "+D"(dest), "+c"(n)
+        : "a"(c)
         : "memory");
 #else
     u8* pd = (u8*)dest_ptr;

Meta/CMake/common_compile_options.cmake

@@ -70,6 +70,11 @@ elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
 
     # FIXME: This warning seems useful but has too many false positives with GCC 13.
     add_compile_options(-Wno-dangling-reference)
+
+    # FIXME: This seems to produce way to many false positives with GCC 15
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "15")
+        add_compile_options(-Wno-array-bounds)
+    endif()
 endif()
 
 if (UNIX AND NOT APPLE AND NOT ENABLE_FUZZERS)

Meta/Lagom/Tools/CodeGenerators/IPCCompiler/main.cpp

@@ -786,8 +786,8 @@ class @endpoint.name@Stub : public IPC::Stub {
 private:
 };
 
-#if defined(AK_COMPILER_CLANG)
-#pragma clang diagnostic pop
+#if defined(AK_COMPILER_CLANG) || __GNUC__ >= 15
+#pragma GCC diagnostic pop
 #endif)~~~");
 }
 
@@ -816,10 +816,11 @@ void build(StringBuilder& builder, Vector<Endpoint> const& endpoints)
 #include <LibIPC/Message.h>
 #include <LibIPC/Stub.h>
 
-#if defined(AK_COMPILER_CLANG)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdefaulted-function-deleted"
-#endif)~~~");
+#if defined(AK_COMPILER_CLANG) || __GNUC__ >= 15
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdefaulted-function-deleted"
+#endif
+)~~~");
 
     for (auto const& endpoint : endpoints)
         build_endpoint(generator.fork(), endpoint);

Ports/AvailablePorts.md

@@ -93,7 +93,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`frotz`](frotz/)                             | Frotz                                                         | 2.54                     | https://gitlab.com/DavidGriffith/frotz                               |
 | [`fuse-exfat`](fuse-exfat/)                   | fuse-exfat                                                    | 1.4.0                    | https://gitlab.com/relan/exfat                                       |
 | [`gawk`](gawk/)                               | GNU awk                                                       | 5.3.1                    | https://www.gnu.org/software/gawk/                                   |
-| [`gcc`](gcc/)                                 | GNU Compiler Collection                                       | 14.2.0                   | https://gcc.gnu.org/                                                 |
+| [`gcc`](gcc/)                                 | GNU Compiler Collection                                       | 15.1.0                   | https://gcc.gnu.org/                                                 |
 | [`gdb`](gdb/)                                 | GNU Project Debugger                                          | 11.2                     | https://sourceware.org/gdb                                           |
 | [`gemrb`](gemrb/)                             | GemRB                                                         | 0.9.2                    | https://gemrb.org/                                                   |
 | [`genemu`](genemu/)                           | Genesis / MegaDrive Emulator                                  | e39f690                  | https://github.com/rasky/genemu                                      |

Ports/gcc/package.sh

@@ -1,10 +1,10 @@
 #!/usr/bin/env -S bash ../.port_include.sh
 port=gcc
-version=14.2.0
+version=15.1.0
 useconfigure=true
 configopts=("--target=${SERENITY_ARCH}-pc-serenity" "--with-sysroot=/" "--with-build-sysroot=${SERENITY_INSTALL_ROOT}" "--enable-languages=c,c++" "--disable-lto" "--disable-nls" "--enable-shared" "--enable-default-pie" "--enable-host-shared" "--enable-threads=posix" "--enable-initfini-array" "--with-linker-hash-style=gnu")
 files=(
-    "https://ftpmirror.gnu.org/gnu/gcc/gcc-${version}/gcc-${version}.tar.xz#a7b39bc69cbf9e25826c5a60ab26477001f7c08d85cec04bc0e29cabed6f3cc9"
+    "https://ftpmirror.gnu.org/gnu/gcc/gcc-${version}/gcc-${version}.tar.xz#e2b09ec21660f01fecffb715e0120265216943f038d0e48a9868713e54f06cea"
 )
 makeopts=("all-gcc" "all-target-libgcc" "all-target-libstdc++-v3" "-j$(nproc)")
 installopts=("DESTDIR=${SERENITY_INSTALL_ROOT}" "install-gcc" "install-target-libgcc" "install-target-libstdc++-v3")

Ports/gmp/package.sh

@@ -2,6 +2,10 @@
 port='gmp'
 version='6.3.0'
 useconfigure='true'
+configopts=(
+   # C20+ does not allow incomplete prototypes, which gmp implicitly uses
+   "CFLAGS=-O2 -pedantic -std=c11"
+)
 files=(
     "https://ftpmirror.gnu.org/gnu/gmp/gmp-${version}.tar.xz#a3c2b80201b89e68616f4ad30bc66aee4927c3ce50e33929ca819d5c43538898"
 )

Tests/LibC/TestScanf.cpp

@@ -26,7 +26,8 @@ constexpr static Array<unsigned char, 32> to_value_t(T x)
         T t;
     };
 
-    auto value = Value { .t = x };
+    Value value { .v = { 0 } };
+    value.t = x;
 
     return {
         value.v[0],

Toolchain/BuildGNU.sh

@@ -76,8 +76,8 @@ BINUTILS_BASE_URL="https://ftpmirror.gnu.org/gnu/binutils"
 
 # Note: If you bump the gcc version, you also have to update the matching
 #       GCC_VERSION variable in the project's root CMakeLists.txt
-GCC_VERSION="14.2.0"
-GCC_MD5SUM="2268420ba02dc01821960e274711bde0"
+GCC_VERSION="15.1.0"
+GCC_MD5SUM="e55d13c55428bca27b4d2ea02f883135"
 GCC_NAME="gcc-$GCC_VERSION"
 GCC_PKG="${GCC_NAME}.tar.xz"
 GCC_BASE_URL="https://ftpmirror.gnu.org/gnu/gcc"

Toolchain/Patches/gcc/0001-Add-a-gcc-driver-for-SerenityOS.patch

@@ -31,10 +31,10 @@ Co-Authored-By: Shannon Booth <[email protected]>
  create mode 100644 gcc/config/serenity.opt.urls
 
 diff --git a/gcc/config.gcc b/gcc/config.gcc
-index 95c91ee02be4403567d63ac566ab8d3b956a6d74..43e2d9b03a5ce4fc2baf6a2268fdbf77467526f5 100644
+index 40b50dc969ede4418b305ca01869ec157e054283..550573f66da4982f21334a16157220c6b3bca81f 100644
 --- a/gcc/config.gcc
 +++ b/gcc/config.gcc
-@@ -722,6 +722,18 @@ x86_cpus="generic intel"
+@@ -723,6 +723,18 @@ x86_cpus="generic intel"
 
  # Common parts for widely ported systems.
  case ${target} in
@@ -53,7 +53,7 @@ index 95c91ee02be4403567d63ac566ab8d3b956a6d74..43e2d9b03a5ce4fc2baf6a2268fdbf77
  *-*-darwin*)
    tmake_file="t-darwin "
    tm_file="${tm_file} darwin.h"
-@@ -1189,6 +1201,17 @@ case ${target} in
+@@ -1186,6 +1198,17 @@ case ${target} in
  esac
 
  case ${target} in

Toolchain/Patches/gcc/0002-fixincludes-Skip-for-SerenityOS-targets.patch

@@ -13,7 +13,7 @@ Our headers don't have such problems, so this hack is of no use for us.
  1 file changed, 1 insertion(+)
 
 diff --git a/fixincludes/mkfixinc.sh b/fixincludes/mkfixinc.sh
-index df90720b716f2386f343f5ba46a2d8d706188dd5..a45cdd0de6833a1e632292722387be453a079053 100755
+index 7112f4dcd64b8351343f7af343271d1717bd02e2..9dcd2318a8c8f514fbf594b26e556fee4d13e9ef 100755
 --- a/fixincludes/mkfixinc.sh
 +++ b/fixincludes/mkfixinc.sh
 @@ -11,6 +11,7 @@ target=fixinc.sh
@@ -22,5 +22,5 @@ index df90720b716f2386f343f5ba46a2d8d706188dd5..a45cdd0de6833a1e632292722387be45
  case $machine in
 +    *-serenity* | \
      i?86-*-cygwin* | \
-     i?86-*-mingw32* | \
-     x86_64-*-mingw32* | \
+     *-mingw32* | \
+     powerpc-*-eabisim* | \

Toolchain/Patches/gcc/0003-libgcc-Build-for-SerenityOS.patch

@@ -15,15 +15,15 @@ Co-Authored-By: Philip Herron <[email protected]>
 Co-Authored-By: Shannon Booth <[email protected]>
 ---
  gcc/configure               |  3 +++
- libgcc/config.host          | 17 +++++++++++++++++
+ libgcc/config.host          | 18 ++++++++++++++++++
  libgcc/unwind-dw2-fde-dip.c |  6 ++++++
- 3 files changed, 26 insertions(+)
+ 3 files changed, 27 insertions(+)
 
 diff --git a/gcc/configure b/gcc/configure
-index abc8bfdc24432e766eb05dcd8492b65acc47a65f..0160b4e986a5f58aa30ccc6e275a31fc9ff9c2ae 100755
+index 16965953f05160ea4572957144f305cc0cce4e18..63fbeab1be55e2a9bf6718f8a6d826bb7ecf7d27 100755
 --- a/gcc/configure
 +++ b/gcc/configure
-@@ -33652,6 +33652,9 @@ case "$target" in
+@@ -33648,6 +33648,9 @@ case "$target" in
    *-linux-musl*)
      gcc_cv_target_dl_iterate_phdr=yes
      ;;
@@ -34,10 +34,10 @@ index abc8bfdc24432e766eb05dcd8492b65acc47a65f..0160b4e986a5f58aa30ccc6e275a31fc
 
  if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
 diff --git a/libgcc/config.host b/libgcc/config.host
-index e75a7af647f6004ce004b4a9eb46949507727dff..3261e8e47184a3b5d6d21685e2d64f234b46bc4a 100644
+index 6a88ee5a2dd0b1386b2a5f2fbb579953f8ce9441..5fc80843a52ba80469df05fd5162964c8d7ae322 100644
 --- a/libgcc/config.host
 +++ b/libgcc/config.host
-@@ -1356,6 +1356,11 @@ riscv*-*-freebsd*)
+@@ -1358,6 +1358,11 @@ riscv*-*-freebsd*)
  	tmake_file="${tmake_file} riscv/t-crtstuff riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address} t-slibgcc-libgcc"
  	extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o"
  	;;
@@ -49,7 +49,7 @@ index e75a7af647f6004ce004b4a9eb46949507727dff..3261e8e47184a3b5d6d21685e2d64f23
  riscv*-*-*)
  	tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
  	extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
-@@ -1569,6 +1574,18 @@ nvptx-*)
+@@ -1571,6 +1576,19 @@ nvptx-*)
  	tmake_file="$tmake_file nvptx/t-nvptx"
  	extra_parts="crt0.o"
  	;;
@@ -63,13 +63,14 @@ index e75a7af647f6004ce004b4a9eb46949507727dff..3261e8e47184a3b5d6d21685e2d64f23
 +	tmake_file="$tmake_file ${cpu_type}/t-aarch64"
 +	tmake_file="$tmake_file ${cpu_type}/t-lse t-slibgcc t-slibgcc-libgcc t-slibgcc-gld-nover"
 +	tmake_file="$tmake_file ${cpu_type}/t-softfp t-softfp t-crtfm"
++	md_unwind_def_header=aarch64/aarch64-unwind-def.h
 +	md_unwind_header=aarch64/aarch64-unwind.h
 +	;;
  *)
  	echo "*** Configuration ${host} not supported" 1>&2
  	exit 1
 diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c
-index 57d0c8812b13a2bfa8ff9b5e031347ad9afd7032..729fd29d4a233950b2c836d91d02ea335875ac6b 100644
+index 5c19838e0a3c34ea3b0420c552c0100276e5aab4..01138feee2a1c2c69a931c785a6f6614b7239c0f 100644
 --- a/libgcc/unwind-dw2-fde-dip.c
 +++ b/libgcc/unwind-dw2-fde-dip.c
 @@ -57,6 +57,12 @@

Toolchain/Patches/gcc/0004-libgcc-Do-not-link-libgcc_s-to-LibC.patch

@@ -17,7 +17,7 @@ Co-Authored-By: Shannon Booth <[email protected]>
  1 file changed, 1 deletion(-)
 
 diff --git a/libgcc/config/t-slibgcc b/libgcc/config/t-slibgcc
-index e8e6c7ddecade26f21d335d4eb7dcc8a04866f7e..bbc99027ac12a2424866e051724a32c61b92eb03 100644
+index 68cb3b31eeed48283af798febf88347f313f2db9..9fd05974fd0fb98eae36a8c215f5692ff6954769 100644
 --- a/libgcc/config/t-slibgcc
 +++ b/libgcc/config/t-slibgcc
 @@ -26,7 +26,6 @@ SHLIB_MAP = @shlib_map_file@

Toolchain/Patches/gcc/0005-i386-Disable-math-errno-for-SerenityOS.patch

@@ -11,10 +11,10 @@ has the effect of setting -fno-math-errno by default.
  1 file changed, 4 insertions(+)
 
 diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
-index d578918dfb7964cbb178f08a5876c75f7b92815b..56c094a91c9cf34c33eea88b622f05004a1b3f4c 100644
+index 4815fbc4d3593c60585fdcc4ec90aeda025f848a..8e42b5a3acf330a17eeacfdcf369ba8e5187293e 100644
 --- a/gcc/common/config/i386/i386-common.cc
 +++ b/gcc/common/config/i386/i386-common.cc
-@@ -2032,6 +2032,10 @@ ix86_option_init_struct (struct gcc_options *opts)
+@@ -2072,6 +2072,10 @@ ix86_option_init_struct (struct gcc_options *opts)
         avoid calling them when that's the only reason we would.  */
      opts->x_flag_errno_math = 0;
 

Toolchain/Patches/gcc/0006-libstdc-Support-SerenityOS.patch

@@ -27,7 +27,7 @@ Co-Authored-By: Shannon Booth <[email protected]>
  4 files changed, 14 insertions(+), 6 deletions(-)
 
 diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
-index 51a08bcc8b1d07d8ab9144caf80ba0406ae12fca..f1c816d2b6d5b070383a3b7d0e40d26ddb54147f 100644
+index a0094c2dd95b43abc80d78cd87b85bc39ddf9eaf..d69a9eac17b868b9c726b3d6b0d80e53d3af68ea 100644
 --- a/libstdc++-v3/acinclude.m4
 +++ b/libstdc++-v3/acinclude.m4
 @@ -1792,7 +1792,7 @@ AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [
@@ -49,7 +49,7 @@ index 51a08bcc8b1d07d8ab9144caf80ba0406ae12fca..f1c816d2b6d5b070383a3b7d0e40d26d
  	;;
        *)
 diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
-index 21abaeb07788142ecbb8a252dfe0b714c7c308c9..d5de656cc3cd7b3a9c4b82c292263426195b157d 100755
+index 819a1d82876a156e27a831bdaa695d155c34e31f..0cd50a29ab76d8af432aefdcb07b43f15f70688a 100755
 --- a/libstdc++-v3/configure
 +++ b/libstdc++-v3/configure
 @@ -12003,6 +12003,11 @@ else
@@ -64,7 +64,7 @@ index 21abaeb07788142ecbb8a252dfe0b714c7c308c9..d5de656cc3cd7b3a9c4b82c292263426
    darwin*)
    # if libdl is installed we need to link against it
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-@@ -16679,7 +16684,7 @@ fi
+@@ -16680,7 +16685,7 @@ fi
        dragonfly* | freebsd*)
  	enable_clocale_flag=dragonfly
  	;;
@@ -73,7 +73,7 @@ index 21abaeb07788142ecbb8a252dfe0b714c7c308c9..d5de656cc3cd7b3a9c4b82c292263426
  	enable_clocale_flag=newlib
  	;;
        *)
-@@ -21374,7 +21379,7 @@ fi
+@@ -21377,7 +21382,7 @@ fi
          ac_has_nanosleep=yes
          ac_has_sched_yield=yes
          ;;
@@ -82,7 +82,7 @@ index 21abaeb07788142ecbb8a252dfe0b714c7c308c9..d5de656cc3cd7b3a9c4b82c292263426
          ac_has_clock_monotonic=yes
          ac_has_clock_realtime=yes
          ac_has_nanosleep=yes
-@@ -28620,7 +28625,7 @@ case "${host}" in
+@@ -28654,7 +28659,7 @@ case "${host}" in
      # This is a freestanding configuration; there is nothing to do here.
      ;;
 
@@ -92,10 +92,10 @@ index 21abaeb07788142ecbb8a252dfe0b714c7c308c9..d5de656cc3cd7b3a9c4b82c292263426
 
      $as_echo "#define HAVE_ASINF 1" >>confdefs.h
 diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host
-index 7bc430716168748b96053d0c4d7785268706dd1c..546c72a474c1d8dcf20c22ee09d7a0ba941b0e1c 100644
+index 253e5a9ad0dbe0698e3672cbee1c89eab8f2702d..45a22282657499d3a3c747f19110f63cbb044995 100644
 --- a/libstdc++-v3/configure.host
 +++ b/libstdc++-v3/configure.host
-@@ -297,6 +297,9 @@ case "${host_os}" in
+@@ -307,6 +307,9 @@ case "${host_os}" in
      # Use libatomic if necessary and avoid libstdc++ specific atomicity support
      atomicity_dir="cpu/generic/atomicity_builtins"
      ;;

Toolchain/Patches/gcc/0007-libstdc-Build-static-library-with-fPIC.patch

@@ -13,7 +13,7 @@ This hack is from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58638
  1 file changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
-index d5de656cc3cd7b3a9c4b82c292263426195b157d..e2939c4d152670ce59798ba5aed02a3abbfbe628 100755
+index 0cd50a29ab76d8af432aefdcb07b43f15f70688a..472b7ed7093aeb37233f2d98a37ddd9d24899b51 100755
 --- a/libstdc++-v3/configure
 +++ b/libstdc++-v3/configure
 @@ -15789,8 +15789,8 @@ if test "$enable_shared" = yes; then