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9c4dbdff1d
NASM had been unable to assemble segment register operations before the following git commit: http://repo.or.cz/nasm.git/commitdiff/21d4ccc3c338 That commit was first released in NASM 2.10: http://repo.or.cz/nasm.git/commitdiff/ff62f33da0a2 This makes NASM 2.07 unusable for edk2 in general, because now we have a lot of X64 assembly code that works with segment registers. For example in: UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm Bump the minimum required version to 2.10, for use with GCC toolchains. Furthermore, list NASM 2.12.01 as a requirement for all other toolchains. In particular, for source level debugging, VS20xx requires CodeView 8 debug symbols, and only NASM 2.12.01 and later produce those. (Suggested by Liming, Mike, and Andrew.) Cc: Andrew Fish <afish@apple.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Cc: Yonghong Zhu <yonghong.zhu@intel.com> Ref: http://thread.gmane.org/gmane.comp.bios.edk2.devel/14612 Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>