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Fill in call_common routine

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This commit is contained in:
Daniel Lubarov 2022-08-15 10:28:23 -07:00
parent 8c275c49f2
commit fdb6cafe18
2 changed files with 80 additions and 17 deletions
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85
evm/src/cpu/kernel/asm/core/call.asm
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@ -2,21 +2,21 @@
// Creates a new sub context and executes the code of the given account. // Creates a new sub context and executes the code of the given account.
global call: global call:
// stack: gas, address, value, args_offset, args_size, ret_offset, ret_size // stack: gas, address, value, args_offset, args_size, ret_offset, ret_size, retdest
%address %address
%stack (self, gas, address, value) %stack (self, gas, address, value)
// These are (should_transfer_value, value, static, gas, sender, storage, code_addr) // These are (static, should_transfer_value, value, sender, address, code_addr, gas)
-> (1, value, 0, gas, self, address, address) -> (0, 1, value, self, address, address, gas)
%jump(call_common) %jump(call_common)
// Creates a new sub context as if calling itself, but with the code of the // Creates a new sub context as if calling itself, but with the code of the
// given account. In particular the storage remains the same. // given account. In particular the storage remains the same.
global call_code: global call_code:
// stack: gas, address, value, args_offset, args_size, ret_offset, ret_size // stack: gas, address, value, args_offset, args_size, ret_offset, ret_size, retdest
%address %address
%stack (self, gas, address, value) %stack (self, gas, address, value)
// These are (should_transfer_value, value, static, gas, sender, storage, code_addr) // These are (static, should_transfer_value, value, sender, address, code_addr, gas)
-> (1, value, 0, gas, self, self, address) -> (0, 1, value, self, self, address, gas)
%jump(call_common) %jump(call_common)
// Creates a new sub context and executes the code of the given account. // Creates a new sub context and executes the code of the given account.
@ -25,35 +25,86 @@ global call_code:
// are CREATE, CREATE2, LOG0, LOG1, LOG2, LOG3, LOG4, SSTORE, SELFDESTRUCT and // are CREATE, CREATE2, LOG0, LOG1, LOG2, LOG3, LOG4, SSTORE, SELFDESTRUCT and
// CALL if the value sent is not 0. // CALL if the value sent is not 0.
global static_all: global static_all:
// stack: gas, address, args_offset, args_size, ret_offset, ret_size // stack: gas, address, args_offset, args_size, ret_offset, ret_size, retdest
%address %address
%stack (self, gas, address) %stack (self, gas, address)
// These are (should_transfer_value, value, static, gas, sender, storage, code_addr) // These are (static, should_transfer_value, value, sender, address, code_addr, gas)
-> (0, 0, 1, gas, self, address, address) -> (1, 0, 0, self, address, address, gas)
%jump(call_common) %jump(call_common)
// Creates a new sub context as if calling itself, but with the code of the // Creates a new sub context as if calling itself, but with the code of the
// given account. In particular the storage, the current sender and the current // given account. In particular the storage, the current sender and the current
// value remain the same. // value remain the same.
global delegate_call: global delegate_call:
// stack: gas, address, args_offset, args_size, ret_offset, ret_size // stack: gas, address, args_offset, args_size, ret_offset, ret_size, retdest
%address %address
%sender %sender
%callvalue %callvalue
%stack (self, sender, value, gas, address) %stack (self, sender, value, gas, address)
// These are (should_transfer_value, value, static, gas, sender, storage, code_addr) // These are (static, should_transfer_value, value, sender, address, code_addr, gas)
-> (0, value, 0, gas, sender, self, address) -> (0, 0, value, sender, self, address, gas)
%jump(call_common) %jump(call_common)
call_common: call_common:
// stack: should_transfer_value, value, static, gas, sender, storage, code_addr, args_offset, args_size, ret_offset, ret_size // stack: static, should_transfer_value, value, sender, address, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// TODO: Set all the appropriate metadata fields...
%create_context %create_context
// stack: new_ctx, after_call // Store the static flag in metadata.
%stack (new_ctx, static) -> (new_ctx, @SEGMENT_CONTEXT_METADATA, @CTX_METADATA_STATIC, static, new_ctx)
MSTORE_GENERAL
// stack: new_ctx, should_transfer_value, value, sender, address, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// Store the address in metadata.
%stack (new_ctx, should_transfer_value, value, sender, address)
-> (new_ctx, @SEGMENT_CONTEXT_METADATA, @CTX_METADATA_ADDRESS, address,
new_ctx, should_transfer_value, value, sender, address)
MSTORE_GENERAL
// stack: new_ctx, should_transfer_value, value, sender, address, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// Store the caller in metadata.
%stack (new_ctx, should_transfer_value, value, sender)
-> (new_ctx, @SEGMENT_CONTEXT_METADATA, @CTX_METADATA_CALLER, sender,
new_ctx, should_transfer_value, value, sender)
MSTORE_GENERAL
// stack: new_ctx, should_transfer_value, value, sender, address, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// Store the call value field in metadata.
%stack (new_ctx, should_transfer_value, value, sender, address) =
-> (new_ctx, @SEGMENT_CONTEXT_METADATA, @CTX_METADATA_CALL_VALUE, value,
should_transfer_value, sender, address, value, new_ctx)
MSTORE_GENERAL
// stack: should_transfer_value, sender, address, value, new_ctx, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
%maybe_transfer_eth
// stack: new_ctx, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// Store parent context in metadata.
GET_CONTEXT
PUSH @CTX_METADATA_PARENT_CONTEXT
PUSH @SEGMENT_CONTEXT_METADATA
DUP4 // new_ctx
MSTORE_GENERAL
// stack: new_ctx, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// Store parent PC = after_call.
%stack (new_ctx) -> (new_ctx, @SEGMENT_CONTEXT_METADATA, @CTX_METADATA_PARENT_PC, after_call, new_ctx)
MSTORE_GENERAL
// stack: new_ctx, code_addr, gas, args_offset, args_size, ret_offset, ret_size, retdest
// TODO: Populate CALLDATA
// TODO: Save parent gas and set child gas
// TODO: Populate code
// TODO: Temporary, remove after above steps are done.
%stack (new_ctx, code_addr, gas, args_offset, args_size) -> (new_ctx)
// stack: new_ctx, ret_offset, ret_size, retdest
// Now, switch to the new context and go to usermode with PC=0. // Now, switch to the new context and go to usermode with PC=0.
DUP1 // new_ctx
SET_CONTEXT SET_CONTEXT
PUSH 0 PUSH 0 // jump dest
EXIT_KERNEL EXIT_KERNEL
after_call: after_call:
// TODO: Set RETURNDATA etc. // stack: new_ctx, ret_offset, ret_size, retdest
// TODO: Set RETURNDATA.
// TODO: Return to caller w/ EXIT_KERNEL.

12
evm/src/cpu/kernel/asm/core/transfer.asm
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@ -14,3 +14,15 @@ global transfer_eth:
%jump(transfer_eth) %jump(transfer_eth)
%%after: %%after:
%endmacro %endmacro
// Pre stack: should_transfer, from, to, amount
// Post stack: (empty)
%macro maybe_transfer_eth
%jumpi(%%transfer)
// We're skipping the transfer, so just pop the arguments and return.
%pop3
%jump(%%after)
%%transfer:
%transfer_eth
%%after:
%endmacro