From 8e96ffab172d6797da4ebd7cb9d6bd60e3a81096 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Fi=C5=A1era?= <mara@neptuo.com>
Date: Tue, 29 Aug 2023 18:02:22 +0200
Subject: [PATCH] [browser] Add `EmccMaximumHeapSize` to define maximum memory
 (#91256)

---
 src/mono/wasm/build/WasmApp.Native.targets | 9 +++++----
 src/mono/wasm/build/WasmApp.targets        | 2 ++
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/mono/wasm/build/WasmApp.Native.targets b/src/mono/wasm/build/WasmApp.Native.targets
index 7a231b742fc60..557db242b43fa 100644
--- a/src/mono/wasm/build/WasmApp.Native.targets
+++ b/src/mono/wasm/build/WasmApp.Native.targets
@@ -221,10 +221,11 @@
 
       <_EmccCommonFlags Include="$(_DefaultEmccFlags)" />
       <_EmccCommonFlags Include="$(EmccFlags)" />
-      <_EmccCommonFlags Include="-g"                                Condition="'$(WasmNativeDebugSymbols)' == 'true'" />
-      <_EmccCommonFlags Include="-v"                                Condition="'$(EmccVerbose)' != 'false'" />
-      <_EmccCommonFlags Include="-s DISABLE_EXCEPTION_CATCHING=0"   Condition="'$(WasmEnableExceptionHandling)' == 'false'" />
-      <_EmccCommonFlags Include="-fwasm-exceptions"                 Condition="'$(WasmEnableExceptionHandling)' == 'true'" />
+      <_EmccCommonFlags Include="-g"                                       Condition="'$(WasmNativeDebugSymbols)' == 'true'" />
+      <_EmccCommonFlags Include="-v"                                       Condition="'$(EmccVerbose)' != 'false'" />
+      <_EmccCommonFlags Include="-s DISABLE_EXCEPTION_CATCHING=0"          Condition="'$(WasmEnableExceptionHandling)' == 'false'" />
+      <_EmccCommonFlags Include="-fwasm-exceptions"                        Condition="'$(WasmEnableExceptionHandling)' == 'true'" />
+      <_EmccCommonFlags Include="-s MAXIMUM_MEMORY=$(EmccMaximumHeapSize)" Condition="'$(EmccMaximumHeapSize)' != ''" />
 
       <_EmccIncludePaths Include="$(_WasmIntermediateOutputPath.TrimEnd('\/'))" />
       <_EmccIncludePaths Include="$(_WasmRuntimePackIncludeDir)mono-2.0" />
diff --git a/src/mono/wasm/build/WasmApp.targets b/src/mono/wasm/build/WasmApp.targets
index bf01bec5d5625..14131231fda4a 100644
--- a/src/mono/wasm/build/WasmApp.targets
+++ b/src/mono/wasm/build/WasmApp.targets
@@ -57,6 +57,8 @@
       - $(EmccInitialHeapSize)              - Initial heap size specified with `emcc`. Default value: 16777216 or size of the DLLs, whichever is larger.
                                               Corresponds to `-s INITIAL_MEMORY=...` emcc arg.
                                               (previously named EmccTotalMemory, which is still kept as an alias)
+      - $(EmccMaximumHeapSize)              - Maximum heap size specified with `emcc`. Default value: 2147483648 or size of the DLLs, whichever is larger.
+                                              Corresponds to `-s MAXIMUM_MEMORY=...` emcc arg.
       - $(EmccStackSize)                    - Stack size. Default value: 5MB.
                                               Corresponds to `-s STACK_SIZE=...` emcc arg.