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Copy txn data to calldata (#935)

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wborgeaud 2023-04-01 07:34:38 +02:00 committed by GitHub
parent 8e04cbfe8d
commit 46d5e62a13
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2 changed files with 15 additions and 1 deletions
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8
evm/src/cpu/kernel/asm/core/call.asm
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@ -169,6 +169,14 @@ global after_call_instruction:
// stack: new_ctx
%endmacro
%macro set_new_ctx_calldata_size
// stack: calldata_size, new_ctx
%stack (calldata_size, new_ctx)
-> (new_ctx, @SEGMENT_CONTEXT_METADATA, @CTX_METADATA_CALLDATA_SIZE, calldata_size, new_ctx)
MSTORE_GENERAL
// stack: new_ctx
%endmacro
%macro set_new_ctx_gas_limit
// stack: gas_limit, new_ctx
%stack (gas_limit, new_ctx)

8
evm/src/cpu/kernel/asm/core/process_txn.asm
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@ -220,8 +220,14 @@ global process_message_txn_code_loaded:
%non_intrinisic_gas %set_new_ctx_gas_limit
// stack: new_ctx, retdest
// TODO: Copy TXN_DATA to CALLDATA
// Set calldatasize and copy txn data to calldata.
%mload_txn_field(@TXN_FIELD_DATA_LEN)
%stack (calldata_size, new_ctx, retdest) -> (calldata_size, new_ctx, calldata_size, retdest)
%set_new_ctx_calldata_size
%stack (new_ctx, calldata_size, retdest) -> (new_ctx, @SEGMENT_CALLDATA, 0, 0, @SEGMENT_TXN_DATA, 0, calldata_size, process_message_txn_code_loaded_finish, new_ctx, retdest)
%jump(memcpy)
process_message_txn_code_loaded_finish:
%enter_new_ctx
// (Old context) stack: new_ctx, retdest