AuroraMiddleware/v8
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[heap] Enable read-only heap sharing for lite-mode

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Bug: v8:7464
Change-Id: I50de5f19f3303625a492faad5da378e2f0d3ed3f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1602699
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#61514}
This commit is contained in:
Maciej Goszczycki 2019-05-14 18:27:21 +01:00 committed by Commit Bot
parent 61b56e19f8
commit 58fea9c1e2
1 changed files with 5 additions and 4 deletions
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9
BUILD.gn
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@ -186,7 +186,8 @@ declare_args() {
v8_check_header_includes = false
# Enable sharing read-only space across isolates.
v8_enable_shared_ro_heap = false
# Sets -DV8_SHARED_RO_HEAP.
v8_enable_shared_ro_heap = ""
}
# We reuse the snapshot toolchain for building torque and other generators to
@ -224,6 +225,9 @@ if (v8_check_microtasks_scopes_consistency == "") {
if (v8_enable_snapshot_native_code_counters == "") {
v8_enable_snapshot_native_code_counters = v8_enable_debugging_features
}
if (v8_enable_shared_ro_heap == "") {
v8_enable_shared_ro_heap = v8_enable_lite_mode
}
assert(v8_current_cpu != "x86" || !v8_untrusted_code_mitigations,
"Untrusted code mitigations are unsupported on ia32")
@ -233,9 +237,6 @@ assert(!v8_enable_lite_mode || v8_enable_embedded_builtins,
assert(!v8_enable_lite_mode || v8_use_snapshot,
"Lite mode requires a snapshot build")
assert(v8_use_snapshot || !v8_enable_shared_ro_heap,
"Nosnapshot builds are not supported with shared read-only heap enabled")
assert(
!v8_enable_pointer_compression || !v8_enable_shared_ro_heap,
"Pointer compression is not supported with shared read-only heap enabled")