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efi: Compile kernel.img with -fshort-wchar on all EFI targets

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The stack check logs a console message on failure, and the EFI API expects
a NULL terminated UCS-2 string. In order to define a UCS-2 string literal,
kernel.img on amd64 and i386 EFI targets is built with -fshort-wchar.

Also compile kernel.img on other EFI targets with -fshort-wchar.

Fixes: 37ddd94 (kern/efi/init: Log a console error during a stack check failure)

Reported-by: Glenn Washburn <development@efficientek.com>
Signed-off-by: Chris Coulson <chris.coulson@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Chris Coulson
2022-10-11 13:26:33 +01:00
committed by Daniel Kiper
parent 1df05ac832
commit 62149e090f
1 changed files with 4 additions and 0 deletions
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grub-core/Makefile.core.def
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@@ -61,15 +61,19 @@ kernel = {
ia64_efi_ldflags = '-Wl,-r';
ia64_efi_stripflags = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version';
arm_efi_cflags = '-fshort-wchar';
arm_efi_ldflags = '-Wl,-r';
arm_efi_stripflags = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version';
arm64_efi_cflags = '-fshort-wchar';
arm64_efi_ldflags = '-Wl,-r';
arm64_efi_stripflags = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version -R .eh_frame';
riscv32_efi_cflags = '-fshort-wchar';
riscv32_efi_ldflags = '-Wl,-r';
riscv32_efi_stripflags = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version -R .eh_frame';
riscv64_efi_cflags = '-fshort-wchar';
riscv64_efi_ldflags = '-Wl,-r';
riscv64_efi_stripflags = '--strip-unneeded -K start -R .note -R .comment -R .note.gnu.gold-version -R .eh_frame';