40 lines
1.7 KiB
Plaintext
40 lines
1.7 KiB
Plaintext
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$FreeBSD$
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For the printing and parsing functionalit, we use the Tianocore routines directly.
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efivar-dp-format.c is a copy of MdePkg/Library/UefiDevicePathLib/DevicePathToText.c
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efivar-dp-parse.c is a copy of MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
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These files are first mechnaically processed with
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sed -e "s/L'/'/;"'s/L"/"/g;s/%g/%36s/g;s/%a/%s/g;s/^VOID/static VOID/g;s/ *$//g'
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for several reasons. We're moving from wide rotuines to narrow
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routines. The UTC-2 this code is written for is a bad match for
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wchar_t which is an int. It's a much better match for plain narrow
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characters on FreeBSD. So we pretend that CHAR16 for these files is
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really char * (ASCII).
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Next, we have have to convert the Unicode printf that this code
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expects to FreeBSD's printf. %g means "Print the GUID" and %a means
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"print the ASCII string." so we mechanically convert them. Once we've
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done that we can compare efivar-dp-*.c to its source to see what's
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changed. Because we go through this indirection, I've done that
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outside of svn. To upgrade you have to do these files by hand. You
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have to go through and make routines static.
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uefi-*.[ch] are internal routines to support this. They've been copied
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from EDK2 as well, but in a more hap-hazard manner. This was a trade
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off between ease of implementation / upgrade vs pulling in too much
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since less than half of any file was needed.
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efi-osdep.h shims the EDK2 types to FreeBSD's types. It's included by
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ProcessorBind.h which EDK2 uses to define the CPU. We keep it separate
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from uefi-dplib.h to allow better sharing.
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uefi-dplib.h shims the EDK2 routines that are needed to FreeBSD's
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routines. This is relatively easy since we map all the UCS-2 routines
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to simple char * routines.
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RESIST THE URGE TO CLEAN UP THESE FILES.
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