ABISP
ABIMacOSX_i386::CreateInstance (const ArchSpec &arch)
{
- static ABISP g_abi_sp;
+ static ABISP g_abi_mac_sp;
+ static ABISP g_abi_other_sp;
if (arch.GetTriple().getArch() == llvm::Triple::x86)
{
- if (!g_abi_sp)
- g_abi_sp.reset (new ABIMacOSX_i386);
- return g_abi_sp;
+ if (arch.GetTriple().isOSDarwin())
+ {
+ if (!g_abi_mac_sp)
+ g_abi_mac_sp.reset (new ABIMacOSX_i386(true));
+ return g_abi_sp;
+ }
+ else
+ {
+ if (!g_abi_other_sp)
+ g_abi_other_sp.reset (new ABIMacOSX_i386(false));
+ return g_abi_sp;
+ }
}
return ABISP();
}
virtual bool
CallFrameAddressIsValid (lldb::addr_t cfa)
{
- // Make sure the stack call frame addresses are are 8 byte aligned
- if (cfa & (8ull - 1ull))
- return false; // Not 8 byte aligned
+ // Darwin call frame addresses must be 16-byte aligned, but other OS's
+ // only need 4-byte alignment. Otherwise the ABI matches, so we have
+ // this one minor override here.
+ if (target_is_darwin)
+ {
+ // Make sure the stack call frame addresses are are 16 byte aligned
+ if (cfa & (16ull - 1ull))
+ return false; // Not 16 byte aligned
+ }
+ else
+ {
+ // Make sure the stack call frame addresses are are 4 byte aligned
+ if (cfa & (4ull - 1ull))
+ return false; // Not 4 byte aligned
+ }
if (cfa == 0)
return false; // Zero is not a valid stack address
return true;
RegisterIsCalleeSaved (const lldb_private::RegisterInfo *reg_info);
private:
- ABIMacOSX_i386() : lldb_private::ABI() { } // Call CreateInstance instead.
+ ABIMacOSX_i386(bool is_darwin) : lldb_private::ABI(),
+ target_is_darwin(is_darwin)
+ { } // Call CreateInstance instead.
+
+ bool target_is_darwin;
};