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[PATCH] [RESUBMIT] config.sub: recognize *-*-uefi
From: |
Adam Joseph |
Subject: |
[PATCH] [RESUBMIT] config.sub: recognize *-*-uefi |
Date: |
Sun, 29 Oct 2023 23:51:18 -0700 |
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 <adam@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
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