This commit causes gnu-config to recognize the *-*-uefi triples. These triples describe binaries which use the PE object file format and UEFI calling "convention" (which is actually a family of completely unrelated calling conventions, one per CPU architecture):
- https://uefi.org/specs/UEFI/2.9_A/02_Overview.html#detailed-calling-convention - https://uefi.org/specs/UEFI/2.9_A/02_Overview.html#detailed-calling-convention-1 - https://uefi.org/specs/UEFI/2.9_A/02_Overview.html#detailed-calling-convention-2 - https://wiki.osdev.org/UEFI#Calling_Conventions This is in contrast to the *-w64-mingw32 triple of GNU-EFI, which uses the ELF format and cdecl calling convention: - https://wiki.osdev.org/UEFI#Calling_Conventions Because *-*-uefi uses a different object file format (everywhere) and calling convention (everywhere except x86_32) from *-w64-mingw32, the resulting binaries cannot be linked against each other. This is the primary justification for introducing a new triple. Since gnu-config does not yet have triples for these builds, we might as well use the same ones already selected by LLVM. It considers uefi to be an operating system: - https://reviews.llvm.org/D131594 * config.sub (*-*-uefi): Recognize. * testsuite/config-sub.data (i686-unknown-uefi, x86_64-unknown-uefi, aarch64-unknown-uefi): New entries. Signed-off-by: Adam Joseph <a...@westernsemico.com> X-Disclaimer: This commit shall not be construed as the author's approval of the UEFI boondoggle in any way, shape or form. --- config.sub | 7 +++++++ testsuite/config-sub.data | 3 +++ 2 files changed, 10 insertions(+) diff --git a/config.sub b/config.sub index defe52c..ad5ad81 100755 --- a/config.sub +++ b/config.sub @@ -1772,6 +1772,13 @@ case $os in sco3.2v2 | sco3.2v[4-9]* | sco5v6*) # Don't forget version if it is 3.2v4 or newer. ;; + # This refers to builds using the UEFI calling convention + # (which depends on the architecture) and PE file format. + # Note that this is both a different calling convention and + # different file format than that of GNU-EFI + # (x86_64-w64-mingw32). + uefi) + ;; none) ;; kernel* | msvc* ) diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data index f36bea2..6a2a3f9 100644 --- a/testsuite/config-sub.data +++ b/testsuite/config-sub.data @@ -22,6 +22,7 @@ aarch64-managarm-kernel aarch64-unknown-managarm-kernel aarch64-managarm-mlibc aarch64-unknown-managarm-mlibc aarch64-unknown-elf aarch64-unknown-elf aarch64-unknown-linux aarch64-unknown-linux-gnu +aarch64-unknown-uefi aarch64-unknown-uefi aarch64-wrs-vxworks aarch64-wrs-vxworks aarch64-zephyr aarch64-unknown-zephyr aarch64_be aarch64_be-unknown-none @@ -328,6 +329,7 @@ i686-ericsson-dicos i686-ericsson-dicos i686-haiku i686-pc-haiku i686-kopensolaris5.11-gnu i686-pc-kopensolaris5.11-gnu i686-os2-emx i686-pc-os2-emx +i686-unknown-uefi i686-unknown-uefi i686-wrs-vxworks i686-wrs-vxworks i686-wrs-vxworks-simlinux i686-wrs-vxworks-simlinux i686-wrs-vxworks-simwindows i686-wrs-vxworks-simwindows @@ -896,6 +898,7 @@ x86_64-secbsd x86_64-pc-secbsd x86_64-sortix x86_64-pc-sortix x86_64-twizzler x86_64-pc-twizzler x86_64-unknown-ptx x86_64-sequent-ptx +x86_64-unknown-uefi x86_64-unknown-uefi x86_64-windows x86_64-pc-windows x86_64-windows-msvc x86_64-pc-windows-msvc x86_64-wrs-vxworks x86_64-wrs-vxworks -- 2.42.0
