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implement host-controlled memory mapping for #261

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This commit is contained in:
Ryan Hileman
2015-11-27 17:25:53 -08:00
parent c6b6ba5daa
commit 6d21ebabea
19 changed files with 160 additions and 7 deletions
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35
uc.c
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@ -570,8 +570,8 @@ static uc_err _hook_mem_access(uc_engine *uc, uc_hook_type type,
return UC_ERR_OK;
}
UNICORN_EXPORT
uc_err uc_mem_map(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
// common setup/error checking shared between uc_mem_map and uc_mem_map_ptr
static uc_err mem_map_start(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
{
MemoryRegion **regions;
@ -600,7 +600,13 @@ uc_err uc_mem_map(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
uc->mapped_blocks = regions;
}
uc->mapped_blocks[uc->mapped_block_count] = uc->memory_map(uc, address, size, perms);
return UC_ERR_OK;
}
// common final step shared by uc_mem_map and uc_mem_map_ptr
static uc_err mem_map_finish(uc_engine *uc, MemoryRegion *block)
{
uc->mapped_blocks[uc->mapped_block_count] = block;
if (uc->mapped_blocks[uc->mapped_block_count] == NULL)
return UC_ERR_NOMEM;
@ -609,6 +615,29 @@ uc_err uc_mem_map(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
return UC_ERR_OK;
}
UNICORN_EXPORT
uc_err uc_mem_map(uc_engine *uc, uint64_t address, size_t size, uint32_t perms)
{
uc_err err;
if ((err = mem_map_start(uc, address, size, perms)) != UC_ERR_OK)
return err;
return mem_map_finish(uc, uc->memory_map(uc, address, size, perms));
}
UNICORN_EXPORT
uc_err uc_mem_map_ptr(uc_engine *uc, uint64_t address, size_t size, void *ptr)
{
if (ptr == NULL)
return UC_ERR_ARG;
uc_err err;
if ((err = mem_map_start(uc, address, size, UC_PROT_ALL)) != UC_ERR_OK)
return err;
return mem_map_finish(uc, uc->memory_map_ptr(uc, address, size, ptr));
}
// Create a backup copy of the indicated MemoryRegion.
// Generally used in prepartion for splitting a MemoryRegion.
static uint8_t *copy_region(struct uc_struct *uc, MemoryRegion *mr)