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allow dynamic configuration of the heap memory (#287)

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This PR changes the implementation of the emulated EVM heap memory:
Instead of linking in a C implementation the code is emitted directly
into the contract module. Which allows making it configurable via a
compiler parameter (a follow up PR to this).

---------

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
This commit is contained in:
xermicus
2025-04-23 20:25:55 +02:00
committed by GitHub
parent f937188991
commit 357bf58868
11 changed files with 216 additions and 66 deletions
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crates/runtime-api/src/polkavm_imports.rs
+1 -10
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@@ -2,14 +2,6 @@ use inkwell::{context::Context, memory_buffer::MemoryBuffer, module::Module, sup
include!(concat!(env!("OUT_DIR"), "/polkavm_imports.rs"));
/// The emulated EVM heap memory global symbol.
pub static MEMORY: &str = "__memory";
/// The emulated EVM heap memory size global symbol.
pub static MEMORY_SIZE: &str = "__memory_size";
pub static SBRK: &str = "__sbrk_internal";
pub static ADDRESS: &str = "address";
pub static BALANCE: &str = "balance";
@@ -78,8 +70,7 @@ pub static WEIGHT_TO_FEE: &str = "weight_to_fee";
/// All imported runtime API symbols.
/// Useful for configuring common attributes and linkage.
pub static IMPORTS: [&str; 34] = [
SBRK,
pub static IMPORTS: [&str; 33] = [
ADDRESS,
BALANCE,
BALANCE_OF,