emscripten: 3.1.47 -> 3.1.50

pkgs/development/compilers/emscripten/0001-emulate-clang-sysroot-include-logic.patch

@@ -1,4 +1,4 @@
-From 4bbbb640934aa653bcfec0335798b77a8935b815 Mon Sep 17 00:00:00 2001
+From 86fc9ce2b381748813b372f7e86909be6f955cbd Mon Sep 17 00:00:00 2001
 From: Yureka <yuka@yuka.dev>
 Date: Sat, 7 Aug 2021 09:16:46 +0200
 Subject: [PATCH] emulate clang 'sysroot + /include' logic
@@ -16,27 +16,23 @@ in the include search order, right after the resource root.
 Hence usage of -idirafter. Clang also documents an -isystem-after flag
 but it doesn't appear to work
 ---
- emcc.py | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
+ emcc.py | 3 +++
+ 1 file changed, 3 insertions(+)
 
 diff --git a/emcc.py b/emcc.py
-index ba8d1b556..7d89644c5 100755
+index 279f6d4d9..26e20e2cc 100644
 --- a/emcc.py
 +++ b/emcc.py
-@@ -883,7 +883,12 @@ def parse_s_args(args):
+@@ -400,6 +400,9 @@ def get_cflags(user_args, is_cxx):
+   # We add these to the user's flags (newargs), but not when building .s or .S assembly files
+   cflags = get_clang_flags(user_args)
+   cflags.append('--sysroot=' + cache.get_sysroot(absolute=True))
++  cflags.append('-resource-dir=@resourceDir@')
++  cflags.append('-idirafter' + cache.get_sysroot(absolute=True) + os.path.join('/include'))
++  cflags.append('-iwithsysroot' + os.path.join('/include','c++','v1'))
 
-
- def emsdk_cflags(user_args):
--  cflags = ['--sysroot=' + cache.get_sysroot(absolute=True)]
-+  cflags = [
-+    '--sysroot=' + cache.get_sysroot(absolute=True),
-+    '-resource-dir=@resourceDir@',
-+    '-idirafter' + cache.get_sysroot(absolute=True) + os.path.join('/include'),
-+    '-iwithsysroot' + os.path.join('/include','c++','v1')
-+  ]
-
-   def array_contains_any_of(hay, needles):
-     for n in needles:
+   if settings.EMSCRIPTEN_TRACING:
+     cflags.append('-D__EMSCRIPTEN_TRACING__=1')
 -- 
-2.40.0
+2.42.0
 

pkgs/development/compilers/emscripten/default.nix

@@ -8,7 +8,7 @@
 
 stdenv.mkDerivation rec {
   pname = "emscripten";
-  version = "3.1.47";
+  version = "3.1.50";
 
   llvmEnv = symlinkJoin {
     name = "emscripten-llvm-${version}";
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   src = fetchFromGitHub {
     owner = "emscripten-core";
     repo = "emscripten";
-    hash = "sha256-cRNkQ+7vUqJLNlf5dieeDcyT1jlBUeVxO8avoUvOPHI=";
+    hash = "sha256-iFZF+DxGaq279QPPugoLhYmoXmyLPkmn1x4rBCkdW+I=";
     rev = version;
   };
 
@@ -42,7 +42,7 @@ stdenv.mkDerivation rec {
   patches = [
     (substituteAll {
       src = ./0001-emulate-clang-sysroot-include-logic.patch;
-      resourceDir = "${llvmEnv}/lib/clang/16/";
+      resourceDir = "${llvmEnv}/lib/clang/17/";
     })
   ];
 
@@ -51,6 +51,9 @@ stdenv.mkDerivation rec {
 
     patchShebangs .
 
+    # emscripten 3.1.50 requires LLVM tip-of-tree instead of LLVM 17
+    sed -i -e "s/EXPECTED_LLVM_VERSION = 18/EXPECTED_LLVM_VERSION = 17.0/g" tools/shared.py
+
     # fixes cmake support
     sed -i -e "s/print \('emcc (Emscript.*\)/sys.stderr.write(\1); sys.stderr.flush()/g" emcc.py
 
@@ -106,7 +109,11 @@ stdenv.mkDerivation rec {
         # TODO: get library cache to build with both enabled and function exported
         $out/bin/emcc $LTO $BIND test.c
         $out/bin/emcc $LTO $BIND -s RELOCATABLE test.c
-        $out/bin/emcc $LTO $BIND -s USE_PTHREADS test.c
+        # starting with emscripten 3.1.48+,
+        # to use pthreads, _emscripten_check_mailbox must be exported
+        # (see https://github.com/emscripten-core/emscripten/pull/20604)
+        # TODO: get library cache to build with pthreads at all
+        # $out/bin/emcc $LTO $BIND -s USE_PTHREADS test.c
       done
     done
     popd
@@ -131,7 +138,7 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/emscripten-core/emscripten";
     description = "An LLVM-to-JavaScript Compiler";
     platforms = platforms.all;
-    maintainers = with maintainers; [ qknight matthewbauer raitobezarius ];
+    maintainers = with maintainers; [ qknight matthewbauer raitobezarius willcohen ];
     license = licenses.ncsa;
   };
 }

pkgs/development/compilers/llvm/17/lld/add-table-base.patch

@@ -0,0 +1,190 @@
+From 93adcb770b99351b18553089c164fe3ef2119699 Mon Sep 17 00:00:00 2001
+From: Sam Clegg <sbc@chromium.org>
+Date: Fri, 25 Aug 2023 13:56:16 -0700
+Subject: [PATCH] [lld][WebAssembly] Add `--table-base` setting
+
+This is similar to `--global-base` but determines where to place the
+table segments rather than that data segments.
+
+See https://github.com/emscripten-core/emscripten/issues/20097
+
+Differential Revision: https://reviews.llvm.org/D158892
+---
+ test/wasm/table-base.s | 72 ++++++++++++++++++++++++++++++++++++++
+ wasm/Driver.cpp        | 19 ++++++++--
+ wasm/Options.td        |  5 ++-
+ wasm/Writer.cpp        |  8 -----
+ 4 files changed, 93 insertions(+), 11 deletions(-)
+ create mode 100644 test/wasm/table-base.s
+
+diff --git a/test/wasm/table-base.s b/test/wasm/table-base.s
+new file mode 100644
+index 000000000000000..56fff414fd31d96
+--- /dev/null
++++ b/test/wasm/table-base.s
+@@ -0,0 +1,72 @@
++# RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %s -o %t.o
++
++# RUN: wasm-ld --export=__table_base -o %t.wasm %t.o
++# RUN: obj2yaml %t.wasm | FileCheck %s  -check-prefix=CHECK-DEFAULT
++
++# RUN: wasm-ld --table-base=100 --export=__table_base -o %t.wasm %t.o
++# RUN: obj2yaml %t.wasm | FileCheck %s  -check-prefix=CHECK-100
++
++.globl _start
++_start:
++  .functype _start () -> ()
++  i32.const _start
++  drop
++  end_function
++
++# CHECK-DEFAULT:       - Type:            TABLE
++# CHECK-DEFAULT-NEXT:    Tables:
++# CHECK-DEFAULT-NEXT:      - Index:           0
++# CHECK-DEFAULT-NEXT:        ElemType:        FUNCREF
++# CHECK-DEFAULT-NEXT:        Limits:
++# CHECK-DEFAULT-NEXT:          Flags:           [ HAS_MAX ]
++# CHECK-DEFAULT-NEXT:          Minimum:         0x2
++# CHECK-DEFAULT-NEXT:          Maximum:         0x2
++
++# CHECK-DEFAULT:       - Type:            GLOBAL
++# CHECK-DEFAULT-NEXT:    Globals:
++# CHECK-DEFAULT-NEXT:      - Index:           0
++# CHECK-DEFAULT-NEXT:        Type:            I32
++# CHECK-DEFAULT-NEXT:        Mutable:         true
++# CHECK-DEFAULT-NEXT:        InitExpr:
++# CHECK-DEFAULT-NEXT:          Opcode:          I32_CONST
++# CHECK-DEFAULT-NEXT:          Value:           66560
++# CHECK-DEFAULT-NEXT:      - Index:           1
++# CHECK-DEFAULT-NEXT:        Type:            I32
++# CHECK-DEFAULT-NEXT:        Mutable:         false
++# CHECK-DEFAULT-NEXT:        InitExpr:
++# CHECK-DEFAULT-NEXT:          Opcode:          I32_CONST
++# CHECK-DEFAULT-NEXT:          Value:           1
++
++# CHECK-DEFAULT:       - Type:            EXPORT
++# CHECK-DEFAULT:           - Name:            __table_base
++# CHECK-DEFAULT-NEXT:        Kind:            GLOBAL
++# CHECK-DEFAULT-NEXT:        Index:           1
++
++# CHECK-100:       - Type:            TABLE
++# CHECK-100-NEXT:    Tables:
++# CHECK-100-NEXT:      - Index:           0
++# CHECK-100-NEXT:        ElemType:        FUNCREF
++# CHECK-100-NEXT:        Limits:
++# CHECK-100-NEXT:          Flags:           [ HAS_MAX ]
++# CHECK-100-NEXT:          Minimum:         0x65
++# CHECK-100-NEXT:          Maximum:         0x65
++
++# CHECK-100:       - Type:            GLOBAL
++# CHECK-100-NEXT:    Globals:
++# CHECK-100-NEXT:      - Index:           0
++# CHECK-100-NEXT:        Type:            I32
++# CHECK-100-NEXT:        Mutable:         true
++# CHECK-100-NEXT:        InitExpr:
++# CHECK-100-NEXT:          Opcode:          I32_CONST
++# CHECK-100-NEXT:          Value:           66560
++# CHECK-100-NEXT:      - Index:           1
++# CHECK-100-NEXT:        Type:            I32
++# CHECK-100-NEXT:        Mutable:         false
++# CHECK-100-NEXT:        InitExpr:
++# CHECK-100-NEXT:          Opcode:          I32_CONST
++# CHECK-100-NEXT:          Value:           100
++
++# CHECK-100:       - Type:            EXPORT
++# CHECK-100:           - Name:            __table_base
++# CHECK-100-NEXT:        Kind:            GLOBAL
++# CHECK-100-NEXT:        Index:           1
+diff --git a/wasm/Driver.cpp b/wasm/Driver.cpp
+index 84304881f5ca34e..c2f5f0185781f36 100644
+--- a/wasm/Driver.cpp
++++ b/wasm/Driver.cpp
+@@ -502,6 +502,7 @@ static void readConfigs(opt::InputArgList &args) {
+
+   config->initialMemory = args::getInteger(args, OPT_initial_memory, 0);
+   config->globalBase = args::getInteger(args, OPT_global_base, 0);
++  config->tableBase = args::getInteger(args, OPT_table_base, 0);
+   config->maxMemory = args::getInteger(args, OPT_max_memory, 0);
+   config->zStackSize =
+       args::getZOptionValue(args, OPT_z, "stack-size", WasmPageSize);
+@@ -573,6 +574,17 @@ static void setConfigs() {
+     if (config->exportTable)
+       error("-shared/-pie is incompatible with --export-table");
+     config->importTable = true;
++  } else {
++    // Default table base.  Defaults to 1, reserving 0 for the NULL function
++    // pointer.
++    if (!config->tableBase)
++      config->tableBase = 1;
++    // The default offset for static/global data, for when --global-base is
++    // not specified on the command line.  The precise value of 1024 is
++    // somewhat arbitrary, and pre-dates wasm-ld (Its the value that
++    // emscripten used prior to wasm-ld).
++    if (!config->globalBase && !config->relocatable && !config->stackFirst)
++      config->globalBase = 1024;
+   }
+
+   if (config->relocatable) {
+@@ -666,8 +678,11 @@ static void checkOptions(opt::InputArgList &args) {
+     warn("-Bsymbolic is only meaningful when combined with -shared");
+   }
+
+-  if (config->globalBase && config->isPic) {
+-    error("--global-base may not be used with -shared/-pie");
++  if (config->isPic) {
++    if (config->globalBase)
++      error("--global-base may not be used with -shared/-pie");
++    if (config->tableBase)
++      error("--table-base may not be used with -shared/-pie");
+   }
+ }
+
+diff --git a/wasm/Options.td b/wasm/Options.td
+index 50417d2928e0a34..bb764396bf4df14 100644
+--- a/wasm/Options.td
++++ b/wasm/Options.td
+@@ -191,7 +191,7 @@ def growable_table: FF<"growable-table">,
+   HelpText<"Remove maximum size from function table, allowing table to grow">;
+
+ def global_base: JJ<"global-base=">,
+-  HelpText<"Where to start to place global data">;
++  HelpText<"Memory offset at which to place global data (Defaults to 1024)">;
+
+ def import_memory: FF<"import-memory">,
+   HelpText<"Import the module's memory from the default module of \"env\" with the name \"memory\".">;
+@@ -224,6 +224,9 @@ def no_entry: FF<"no-entry">,
+ def stack_first: FF<"stack-first">,
+   HelpText<"Place stack at start of linear memory rather than after data">;
+
++def table_base: JJ<"table-base=">,
++  HelpText<"Table offset at which to place address taken functions (Defaults to 1)">;
++
+ defm whole_archive: B<"whole-archive",
+     "Force load of all members in a static library",
+     "Do not force load of all members in a static library (default)">;
+diff --git a/wasm/Writer.cpp b/wasm/Writer.cpp
+index f25d358dc5bae6f..0576bf2907e49c4 100644
+--- a/wasm/Writer.cpp
++++ b/wasm/Writer.cpp
+@@ -358,13 +358,6 @@ void Writer::layoutMemory() {
+       memoryPtr = config->globalBase;
+     }
+   } else {
+-    if (!config->globalBase && !config->relocatable && !config->isPic) {
+-      // The default offset for static/global data, for when --global-base is
+-      // not specified on the command line.  The precise value of 1024 is
+-      // somewhat arbitrary, and pre-dates wasm-ld (Its the value that
+-      // emscripten used prior to wasm-ld).
+-      config->globalBase = 1024;
+-    }
+     memoryPtr = config->globalBase;
+   }
+
+@@ -1685,7 +1678,6 @@ void Writer::run() {
+   // For PIC code the table base is assigned dynamically by the loader.
+   // For non-PIC, we start at 1 so that accessing table index 0 always traps.
+   if (!config->isPic) {
+-    config->tableBase = 1;
+     if (WasmSym::definedTableBase)
+       WasmSym::definedTableBase->setVA(config->tableBase);
+     if (WasmSym::definedTableBase32)

pkgs/development/compilers/llvm/17/lld/default.nix

@@ -26,6 +26,7 @@ stdenv.mkDerivation rec {
 
   patches = [
     ./gnu-install-dirs.patch
+    ./add-table-base.patch
   ];
 
   nativeBuildInputs = [ cmake ninja ];

pkgs/top-level/all-packages.nix

@@ -7943,7 +7943,7 @@ with pkgs;
   easeprobe = callPackage ../tools/misc/easeprobe { };
 
   emscripten = callPackage ../development/compilers/emscripten {
-    llvmPackages = llvmPackages_16;
+    llvmPackages = llvmPackages_17;
   };
 
   emscriptenPackages = recurseIntoAttrs (callPackage ./emscripten-packages.nix { });