Please Khem, send these patches upstream first.

Alex

On Wed, 17 Mar 2021 at 01:32, Khem Raj <[email protected]> wrote:

> Fixes
>
> [YOCTO #14281]
>
> Signed-off-by: Khem Raj <[email protected]>
> Cc: Andrei Gherzan <[email protected]>
> ---
>  .../webkitgtk/musl-lower-stack-usage.patch    | 51 +++++++++++++++++++
>  meta/recipes-sato/webkit/webkitgtk_2.30.5.bb  |  1 +
>  2 files changed, 52 insertions(+)
>  create mode 100644
> meta/recipes-sato/webkit/webkitgtk/musl-lower-stack-usage.patch
>
> diff --git
> a/meta/recipes-sato/webkit/webkitgtk/musl-lower-stack-usage.patch
> b/meta/recipes-sato/webkit/webkitgtk/musl-lower-stack-usage.patch
> new file mode 100644
> index 0000000000..3d66766d9a
> --- /dev/null
> +++ b/meta/recipes-sato/webkit/webkitgtk/musl-lower-stack-usage.patch
> @@ -0,0 +1,51 @@
> +reduce thread stack and heap usage for javascriptcore on musl
> +
> +default sizes for musl are smaller compared to glibc, this matches
> +to musl defaults, avoid stack overflow crashes in jscore
> +
> +Upstream-Status: Pending
> +Signed-off-by: Khem Raj <[email protected]>
> +
> +--- a/Source/JavaScriptCore/runtime/OptionsList.h
> ++++ b/Source/JavaScriptCore/runtime/OptionsList.h
> +@@ -75,6 +75,18 @@ constexpr bool enableWebAssemblyStreamin
> + // On instantiation of the first VM instance, the Options will be write
> protected
> + // and cannot be modified thereafter.
> +
> ++#if OS(LINUX) && !defined(__GLIBC__)
> ++// non-glibc options on linux ( musl )
> ++constexpr unsigned jscMaxPerThreadStack = 80 * KB;
> ++constexpr unsigned jscSoftReservedZoneSize = 32 * KB;
> ++constexpr unsigned jscReservedZoneSize = 16 * KB;
> ++#else
> ++//default
> ++constexpr unsigned jscMaxPerThreadStack = 4 * MB;
> ++constexpr unsigned jscSoftReservedZoneSize = 128 * KB;
> ++constexpr unsigned jscReservedZoneSize = 64 * KB;
> ++#endif
> ++
> + #define FOR_EACH_JSC_OPTION(v)                                          \
> +     v(Bool, useKernTCSM, defaultTCSMValue(), Normal, "Note: this needs
> to go before other options since they depend on this value.") \
> +     v(Bool, validateOptions, false, Normal, "crashes if mis-typed JSC
> options were passed to the VM") \
> +@@ -90,9 +102,9 @@ constexpr bool enableWebAssemblyStreamin
> +     \
> +     v(Bool, reportMustSucceedExecutableAllocations, false, Normal,
> nullptr) \
> +     \
> +-    v(Unsigned, maxPerThreadStackUsage, 5 * MB, Normal, "Max allowed
> stack usage by the VM") \
> +-    v(Unsigned, softReservedZoneSize, 128 * KB, Normal, "A buffer
> greater than reservedZoneSize that reserves space for stringifying
> exceptions.") \
> +-    v(Unsigned, reservedZoneSize, 64 * KB, Normal, "The amount of stack
> space we guarantee to our clients (and to interal VM code that does not
> call out to clients).") \
> ++    v(Unsigned, maxPerThreadStackUsage, jscMaxPerThreadStack, Normal,
> "Max allowed stack usage by the VM") \
> ++    v(Unsigned, softReservedZoneSize, jscSoftReservedZoneSize, Normal,
> "A buffer greater than reservedZoneSize that reserves space for
> stringifying exceptions.") \
> ++    v(Unsigned, reservedZoneSize, jscReservedZoneSize, Normal, "The
> amount of stack space we guarantee to our clients (and to interal VM code
> that does not call out to clients).") \
> +     \
> +     v(Bool, crashOnDisallowedVMEntry, ASSERT_ENABLED, Normal, "Forces a
> crash if we attempt to enter the VM when disallowed") \
> +     v(Bool, crashIfCantAllocateJITMemory, false, Normal, nullptr) \
> +@@ -601,7 +613,7 @@ public:
> +     bool init(const char*);
> +     bool isInRange(unsigned);
> +     const char* rangeString() const { return (m_state > InitError) ?
> m_rangeString : s_nullRangeStr; }
> +-
> ++
> +     void dump(PrintStream& out) const;
> +
> + private:
> diff --git a/meta/recipes-sato/webkit/webkitgtk_2.30.5.bb
> b/meta/recipes-sato/webkit/webkitgtk_2.30.5.bb
> index d0a41f48c7..36d33f550d 100644
> --- a/meta/recipes-sato/webkit/webkitgtk_2.30.5.bb
> +++ b/meta/recipes-sato/webkit/webkitgtk_2.30.5.bb
> @@ -20,6 +20,7 @@ SRC_URI = "
> https://www.webkitgtk.org/releases/${BPN}-${PV}.tar.xz \
>             file://include_xutil.patch \
>             file://reduce-memory-overheads.patch \
>
> file://0001-Extend-atomics-check-to-include-1-byte-CAS-test.patch \
> +           file://musl-lower-stack-usage.patch \
>             "
>
>  SRC_URI[sha256sum] =
> "7d0dab08e3c5ae07bec80b2822ef42e952765d5724cac86eb23999bfed5a7f1f"
> --
> 2.31.0
>
>
> 
>
>
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