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[Web] Force emcc to use "wasm" longjmp mode

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SUPPORT_LONGJMP have changed since emscripten 3.1.32 to default to
"wasm" mode when exceptions are enabled, and "emscripten" mode when
disabled.

While we generally doesn't use exception in core, linked libraries may
need them, and emscripten don't plan to support WASM EH + Emscripten
SjLj in the long term.

(cherry picked from commit 1bb543b6f4)
This commit is contained in:
Fabio Alessandrelli
2024-06-14 01:42:39 +02:00
committed by David Snopek
parent fd31fabcfc
commit 5921734784
1 changed files with 6 additions and 2 deletions
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8
tools/web.py
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@@ -35,13 +35,17 @@ def generate(env):
# Thread support (via SharedArrayBuffer).
if env["threads"]:
env.Append(CCFLAGS=["-s", "USE_PTHREADS=1"])
env.Append(LINKFLAGS=["-s", "USE_PTHREADS=1"])
env.Append(CCFLAGS=["-sUSE_PTHREADS=1"])
env.Append(LINKFLAGS=["-sUSE_PTHREADS=1"])
# Build as side module (shared library).
env.Append(CCFLAGS=["-sSIDE_MODULE=1"])
env.Append(LINKFLAGS=["-sSIDE_MODULE=1"])
# Force wasm longjmp mode.
env.Append(CCFLAGS=["-sSUPPORT_LONGJMP='wasm'"])
env.Append(LINKFLAGS=["-sSUPPORT_LONGJMP='wasm'"])
env.Append(CPPDEFINES=["WEB_ENABLED", "UNIX_ENABLED"])
common_compiler_flags.generate(env)