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EVM-C: Add ABI versioning support

This commit is contained in:
Paweł Bylica 2016-08-25 16:03:22 +02:00
parent 93f16f9380
commit aa1fa5ee32
2 changed files with 10 additions and 0 deletions
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1
examples/examplevm.c
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@ -71,6 +71,7 @@ struct evm_interface examplevm_get_interface()
{
struct evm_interface intf;
memset(&intf, 0, sizeof(struct evm_result));
intf.abi_version = EVM_ABI_VERSION;
intf.create = evm_create;
intf.destroy = evm_destroy;
intf.execute = evm_execute;

9
include/evm.h
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@ -22,6 +22,9 @@
extern "C" {
#endif
/// The EVM-C ABI version number matching the interface declared in this file.
static const uint32_t EVM_ABI_VERSION = 0;
/// Host-endian 256-bit integer.
///
/// 32 bytes of data representing host-endian (that means little-endian almost
@ -377,6 +380,12 @@ typedef void (*evm_prepare_code_fn)(struct evm_instance* instance,
///
/// Defines the implementation of EVM-C interface for a VM.
struct evm_interface {
/// EVM-C ABI version implemented by the VM.
///
/// For future use to detect ABI incompatibilities. The EVM-C ABI version
/// represented by this file is in ::EVM_ABI_VERSION.
uint32_t abi_version;
/// Pointer to function creating a VM's instance.
evm_create_fn create;