From f1d126d4fa29a3d384332be60eef32840d07bf75 Mon Sep 17 00:00:00 2001
From: Sam Clegg <sbc@chromium.org>
Date: Thu, 20 Aug 2026 15:33:50 -0700
Subject: [PATCH] Support both legacy and non-legacy EH in ports

Split out from #27575
---
 test/test_other.py        |  9 +++++++++
 tools/ports/freetype.py   | 11 +++++++++--
 tools/ports/libpng.py     |  8 +++++++-
 tools/ports/sdl2_image.py |  6 +++++-
 4 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/test/test_other.py b/test/test_other.py
index 8a94aaf317aa4..ca9b3fe93f50b 100644
--- a/test/test_other.py
+++ b/test/test_other.py
@@ -2617,6 +2617,14 @@ def test_sdl2_gfx_linkable(self):
     self.emcc('browser/test_sdl2_misc.c', ['-Wl,-fatal-warnings', '-sMAIN_MODULE', '-sUSE_SDL_GFX=2', '-o', 'a.out.js'])
     self.emcc('browser/test_sdl2_misc.c', ['-Wl,-fatal-warnings', '-sMAIN_MODULE', '--use-port=sdl2_gfx', '-o', 'a.out.js'])
 
+  @with_all_sjlj
+  @requires_network
+  def test_sdl2_image_linkable(self):
+    # Same as above but for sdl2_image library
+    self.emcc('browser/test_sdl2_misc.c', ['-Wl,-fatal-warnings', '-sMAIN_MODULE', '-sUSE_SDL_IMAGE=2', '-o', 'a.out.js'])
+    self.emcc('browser/test_sdl2_misc.c', ['-Wl,-fatal-warnings', '-sMAIN_MODULE', '--use-port=sdl2_image', '-o', 'a.out.js'])
+
+  @with_all_sjlj
   @requires_network
   def test_libpng(self):
     copy_asset('third_party/libpng/pngtest.png')
@@ -2625,6 +2633,7 @@ def test_libpng(self):
     self.do_runf('third_party/libpng/pngtest.c', 'libpng passes test',
                  cflags=['--embed-file', 'pngtest.png', '--use-port=libpng'])
 
+  @with_all_sjlj
   @requires_pthreads
   @requires_network
   def test_libpng_with_pthreads(self):
diff --git a/tools/ports/freetype.py b/tools/ports/freetype.py
index fb673373c0373..ac5983709f47f 100644
--- a/tools/ports/freetype.py
+++ b/tools/ports/freetype.py
@@ -10,7 +10,10 @@
 PKG_VERSION = '26.2.20'
 HASH = '460ea4dc9cc879822556d801341a1cf3efcd57a13cd4da64169603ea98873337dd19e3c8c6d9054b27d10acbbaa8d5c59b7f560c697b98dc2640bcd88f57554a'
 
-variants = {'freetype-legacysjlj': {'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 1}}
+variants = {
+  'freetype-wasmsjlj': {'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 0},
+  'freetype-legacysjlj': {'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 1},
+}
 deps = ['zlib']
 
 
@@ -20,7 +23,10 @@ def needed(settings):
 
 def get_lib_name(settings):
   if settings.SUPPORT_LONGJMP == 'wasm':
-    return 'libfreetype-legacysjlj.a'
+    if settings.WASM_LEGACY_EXCEPTIONS:
+      return 'libfreetype-legacysjlj.a'
+    else:
+      return 'libfreetype-wasmsjlj.a'
   else:
     return 'libfreetype.a'
 
@@ -97,6 +103,7 @@ def create(final):
 
     if settings.SUPPORT_LONGJMP == 'wasm':
       flags.append('-sSUPPORT_LONGJMP=wasm')
+      flags.append(f'-sWASM_LEGACY_EXCEPTIONS={settings.WASM_LEGACY_EXCEPTIONS}')
 
     ports.make_pkg_config('freetype2', PKG_VERSION, '-sUSE_FREETYPE')
     ports.build_port(source_path, final, 'freetype', flags=flags, srcs=srcs)
diff --git a/tools/ports/libpng.py b/tools/ports/libpng.py
index 7dd62c1f07a91..f603390ec2fb3 100644
--- a/tools/ports/libpng.py
+++ b/tools/ports/libpng.py
@@ -13,6 +13,8 @@
 deps = ['zlib']
 variants = {
   'libpng-mt': {'PTHREADS': 1},
+  'libpng-wasmsjlj': {'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 0},
+  'libpng-mt-wasmsjlj': {'PTHREADS': 1, 'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 0},
   'libpng-legacysjlj': {'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 1},
   'libpng-mt-legacysjlj': {'PTHREADS': 1, 'SUPPORT_LONGJMP': 'wasm', 'WASM_LEGACY_EXCEPTIONS': 1},
 }
@@ -27,7 +29,10 @@ def get_lib_name(settings):
   if settings.PTHREADS:
     suffix += '-mt'
   if settings.SUPPORT_LONGJMP == 'wasm':
-    suffix += '-legacysjlj'
+    if settings.WASM_LEGACY_EXCEPTIONS:
+      suffix += '-legacysjlj'
+    else:
+      suffix += '-wasmsjlj'
   return f'libpng{suffix}.a'
 
 
@@ -46,6 +51,7 @@ def create(final):
       flags += ['-pthread']
     if settings.SUPPORT_LONGJMP == 'wasm':
       flags.append('-sSUPPORT_LONGJMP=wasm')
+      flags.append(f'-sWASM_LEGACY_EXCEPTIONS={settings.WASM_LEGACY_EXCEPTIONS}')
 
     ports.build_port(source_path, final, 'libpng', flags=flags, exclude_files=['pngtest'], exclude_dirs=['scripts', 'contrib'])
 
diff --git a/tools/ports/sdl2_image.py b/tools/ports/sdl2_image.py
index 138fb3f09cd1b..c8db48ada1ba9 100644
--- a/tools/ports/sdl2_image.py
+++ b/tools/ports/sdl2_image.py
@@ -44,7 +44,10 @@ def get_lib_name(settings):
   if settings.PTHREADS:
     libname += '-mt'
   if settings.SUPPORT_LONGJMP == 'wasm':
-    libname += '-wasm-sjlj'
+    if settings.WASM_LEGACY_EXCEPTIONS:
+      libname += '-legacysjlj'
+    else:
+      libname += '-wasmsjlj'
   return libname + '.a'
 
 
@@ -76,6 +79,7 @@ def create(final):
 
     if settings.SUPPORT_LONGJMP == 'wasm':
       flags.append('-sSUPPORT_LONGJMP=wasm')
+      flags.append(f'-sWASM_LEGACY_EXCEPTIONS={settings.WASM_LEGACY_EXCEPTIONS}')
 
     ports.build_port(src_dir, final, 'sdl2_image', flags=flags, srcs=srcs)