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5967886d58
The >> operator redirects stdout to a file, using append mode and unicode encoding. Write the BOM when redirection happens to a new file (which starts out empty). This makes the >> operator behave similarly to the > operator, when the redirection target doesn't exist originally: OutUnicode && OutAppend && FileSize == 0 // >> to new unicode file vs. OutUnicode && !OutAppend // > to any unicode file (Note that (FileSize == 0) is equivalent to "new file" in this context, due to the earlier "Check that filetypes (Unicode/Ascii) do not change during an append".) Reported-by: Lowell Dennis <Lowell_Dennis@Dell.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jaben Carsey <Jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15725 6f19259b-4bc3-4df7-8a09-765794883524
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OVERVIEW
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The UEFI 2.0 shell provides a standard pre-boot command line processor.
It is similar to the EDK EFI Shell or a *nix command line parser.
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HOW TO INCORPORATE THIS SHELL INTO NT32
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The instructions below are included as a sample and template on how a
developer may integrate this code into an existing platform:
1. Add this shell build to the NT32 build:
Add the shell.inf to the [components] section as it is in the ShellPkg.dsc.
2. Update system PCDs to support this new module
Update the PCD as follows using the Shell's PCD:
gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdShellFile|{ 0x83, 0xA5, 0x04, 0x7C, 0x3E, 0x9E, 0x1C, 0x4F, 0xAD, 0x65, 0xE0, 0x52, 0x68, 0xD0, 0xB4, 0xD1 }
3. Remove the old shell from the NT32 Firmware list
Remove the FILE APPLICATION section for the old shell.
4. Add this shell to the NT32 firmware list
Add the Shell.INF to the end of the list of DXE modules.
5. Build NT32
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