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Fix wamrc endian/bit-width check invalid issue on win32 target (#886)

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Use the previous resolved binary type info (obj_data->target_info.bin_type) to
check the endian and bit-width but not the raw binary info, the latter is not
suitable for the check for Win32 object file type.

And fix the symbol comparison issue in resolve_target_sym(), as in Win32, the
symbol name of a function added by LLVMAddFunction() is prefixed by '_',
which leads to invalid result returned by strcmp().
This commit is contained in:
Wenyong Huang 2021-12-14 08:45:48 +08:00 committed by GitHub
parent 2917a0c814
commit bbaf0a3c37
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 25 additions and 17 deletions
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12
core/iwasm/aot/aot_loader.c
View File

@ -1689,11 +1689,19 @@ resolve_target_sym(const char *symbol, int32 *p_index)
if (!(target_sym_map = get_target_symbol_map(&num)))
return NULL;
for (i = 0; i < num; i++)
if (!strcmp(target_sym_map[i].symbol_name, symbol)) {
for (i = 0; i < num; i++) {
if (!strcmp(target_sym_map[i].symbol_name, symbol)
#if defined(_WIN32) || defined(_WIN32_)
/* In Win32, the symbol name of function added by
LLVMAddFunction() is prefixed by '_', ignore it */
|| (strlen(symbol) > 1 && symbol[0] == '_'
&& !strcmp(target_sym_map[i].symbol_name, symbol + 1))
#endif
) {
*p_index = (int32)i;
return target_sym_map[i].symbol_addr;
}
}
return NULL;
}

30
core/iwasm/compilation/aot_emit_aot_file.c
View File

@ -149,17 +149,17 @@ static void dump_buf(uint8 *buf, uint32 size, char *title)
#endif
static bool
is_32bit_binary(LLVMBinaryRef binary)
is_32bit_binary(const AOTObjectData *obj_data)
{
LLVMBinaryType type = LLVMBinaryGetType(binary);
return (type == LLVMBinaryTypeELF32L || type == LLVMBinaryTypeELF32B);
/* bit 1: 0 is 32-bit, 1 is 64-bit */
return obj_data->target_info.bin_type & 2 ? false : true;
}
static bool
is_little_endian_binary(LLVMBinaryRef binary)
is_little_endian_binary(const AOTObjectData *obj_data)
{
LLVMBinaryType type = LLVMBinaryGetType(binary);
return (type == LLVMBinaryTypeELF32L || type == LLVMBinaryTypeELF64L);
/* bit 0: 0 is little-endian, 1 is big-endian */
return obj_data->target_info.bin_type & 1 ? false : true;
}
static bool
@ -568,7 +568,7 @@ get_func_section_size(AOTCompData *comp_data, AOTObjectData *obj_data)
/* text offsets + function type indexs */
uint32 size = 0;
if (is_32bit_binary(obj_data->binary))
if (is_32bit_binary(obj_data))
size = (uint32)sizeof(uint32) * comp_data->func_count;
else
size = (uint32)sizeof(uint64) * comp_data->func_count;
@ -852,7 +852,7 @@ get_relocation_section_size(AOTCompContext *comp_ctx, AOTObjectData *obj_data)
return (uint32)sizeof(uint32) + symbol_table_size
+ get_relocation_groups_size(relocation_groups,
relocation_group_count,
is_32bit_binary(obj_data->binary));
is_32bit_binary(obj_data));
}
static uint32
@ -1181,7 +1181,7 @@ get_name_section_size(AOTCompData *comp_data)
return 0;
}
max_aot_buf_size = 4 * (p_end - p);
max_aot_buf_size = 4 * (uint32)(p_end - p);
if (!(buf = comp_data->aot_name_section_buf =
wasm_runtime_malloc(max_aot_buf_size))) {
aot_set_last_error("allocate memory for custom name section failed.");
@ -1689,7 +1689,7 @@ aot_emit_func_section(uint8 *buf, uint8 *buf_end, uint32 *p_offset,
EMIT_U32(section_size);
for (i = 0; i < obj_data->func_count; i++, func++) {
if (is_32bit_binary(obj_data->binary))
if (is_32bit_binary(obj_data))
EMIT_U32(func->text_offset);
else
EMIT_U64(func->text_offset);
@ -1816,7 +1816,7 @@ aot_emit_relocation_section(uint8 *buf, uint8 *buf_end, uint32 *p_offset,
/* emit each relocation */
for (j = 0; j < relocation_group->relocation_count; j++, relocation++) {
offset = align_uint(offset, 4);
if (is_32bit_binary(obj_data->binary)) {
if (is_32bit_binary(obj_data)) {
EMIT_U32(relocation->relocation_offset);
EMIT_U32(relocation->relocation_addend);
}
@ -1883,9 +1883,9 @@ aot_emit_name_section(uint8 *buf, uint8 *buf_end, uint32 *p_offset,
/* sub section id + name section size */
EMIT_U32(sizeof(uint32) * 1 + comp_data->aot_name_section_size);
EMIT_U32(AOT_CUSTOM_SECTION_NAME);
bh_memcpy_s((uint8 *)(buf + offset), buf_end - buf,
bh_memcpy_s((uint8 *)(buf + offset), (uint32)(buf_end - buf),
comp_data->aot_name_section_buf,
comp_data->aot_name_section_size);
(uint32)comp_data->aot_name_section_size);
offset += comp_data->aot_name_section_size;
*p_offset = offset;
@ -2321,8 +2321,8 @@ aot_resolve_object_relocation_group(AOTObjectData *obj_data,
LLVMRelocationIteratorRef rel_itr;
AOTRelocation *relocation = group->relocations;
uint32 size;
bool is_binary_32bit = is_32bit_binary(obj_data->binary);
bool is_binary_little_endian = is_little_endian_binary(obj_data->binary);
bool is_binary_32bit = is_32bit_binary(obj_data);
bool is_binary_little_endian = is_little_endian_binary(obj_data);
bool has_addend = str_starts_with(group->section_name, ".rela");
uint8 *rela_content = NULL;