Hello,
I'm the developer of Darling, a translation layer for running OS X
binaries on Linux.
I'm facing many difficulties due to the following differences in i386
ABI between Darwin and Linux:
* size_t on Darwin/i386 is 'unsigned long', but Linux/i386 uses
'unsigned int' (=> different mangled names).
* long double on Darwin/i386 is 128 bits long, but Linux/i386 uses only
96 bits.
This problem can be overcome by specifying '-target
i386-unknown-darwin-elf', but this currently fails due to a different
data layout string (Darwin specifies Mach-O).
The attached patch allows the use of ELF with the DarwinI386 target. It
is identical to what is already done in the WindowsX86_32 target.
Pretty please, include my patch, as it would be very helpful and it's a
rather small change.
Thanks,
--
Luboš Doležel
Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp (revision 255459)
+++ lib/Basic/Targets.cpp (working copy)
@@ -3730,7 +3730,12 @@
UseSignedCharForObjCBool = false;
SizeType = UnsignedLong;
IntPtrType = SignedLong;
- DataLayoutString = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128";
+
+ bool IsMachO =
+ getTriple().isOSDarwin() && getTriple().isOSBinFormatMachO();
+ DescriptionString = IsMachO
+ ? "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
+ : "e-m:e-p:32:32-f64:32:64-f80:128-n8:16:32-S128";
HasAlignMac68kSupport = true;
}
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