[efi] Set NXCOMPAT bit in PE header

Indicate that the binary is compatible with W^X protections by setting the NXCOMPAT bit in the DllCharacteristics field of the PE header. Signed-off-by: Michael Brown <mbrown@fensystems.co.uk>
ipxe · Aug 16, 2023 · e0b67a2 · e0b67a2
1 parent 1398b3e
commit e0b67a2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/prefix.S b/src/prefix.S
@@ -128,7 +128,7 @@ opt_header:
 	.long	_prefix_len		/* SizeOfHeaders */
 	.long	0			/* Checksum */
 	.word	0x0a			/* Subsystem */
-	.word	0			/* DllCharacteristics */
+	.word	0x0100			/* DllCharacteristics */
 #if __x86_64__
 	.quad	0			/* SizeOfStackReserve */
 	.quad	0			/* SizeOfStackCommit */