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artiq_personality: avoid unaligned loads.

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This commit is contained in:
whitequark 2015-08-02 06:28:58 +03:00
parent 697b78ddf2
commit cd294e2986
1 changed files with 31 additions and 7 deletions
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38
soc/runtime/artiq_personality.c
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@ -126,7 +126,7 @@ static uintptr_t readEncodedPointer(const uint8_t **data, uint8_t encoding) {
// first get value
switch (encoding & 0x0F) {
case DW_EH_PE_absptr:
result = *((uintptr_t*)p);
memcpy(&result, p, sizeof(uintptr_t));
p += sizeof(uintptr_t);
break;
case DW_EH_PE_uleb128:
@ -137,27 +137,51 @@ static uintptr_t readEncodedPointer(const uint8_t **data, uint8_t encoding) {
result = readSLEB128(&p);
break;
case DW_EH_PE_udata2:
result = *((uint16_t*)p);
{
uint16_t valu16;
memcpy(&valu16, p, sizeof(uint16_t));
result = valu16;
}
p += sizeof(uint16_t);
break;
case DW_EH_PE_udata4:
result = *((uint32_t*)p);
{
uint32_t valu32;
memcpy(&valu32, p, sizeof(uint32_t));
result = valu32;
}
p += sizeof(uint32_t);
break;
case DW_EH_PE_udata8:
result = *((uint64_t*)p);
{
uint64_t valu64;
memcpy(&valu64, p, sizeof(uint64_t));
result = valu64;
}
p += sizeof(uint64_t);
break;
case DW_EH_PE_sdata2:
result = *((int16_t*)p);
{
int16_t val16;
memcpy(&val16, p, sizeof(int16_t));
result = val16;
}
p += sizeof(int16_t);
break;
case DW_EH_PE_sdata4:
result = *((int32_t*)p);
{
int32_t val32;
memcpy(&val32, p, sizeof(int32_t));
result = val32;
}
p += sizeof(int32_t);
break;
case DW_EH_PE_sdata8:
result = *((int64_t*)p);
{
int64_t val64;
memcpy(&val64, p, sizeof(int64_t));
result = val64;
}
p += sizeof(int64_t);
break;
default: