diff options
Diffstat (limited to 'meta/recipes-bsp/grub/files/0001-configure.ac-Use-_zicsr_zifencei-extentions-on-riscv.patch')
| -rw-r--r-- | meta/recipes-bsp/grub/files/0001-configure.ac-Use-_zicsr_zifencei-extentions-on-riscv.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta/recipes-bsp/grub/files/0001-configure.ac-Use-_zicsr_zifencei-extentions-on-riscv.patch b/meta/recipes-bsp/grub/files/0001-configure.ac-Use-_zicsr_zifencei-extentions-on-riscv.patch new file mode 100644 index 0000000000..c575a31161 --- /dev/null +++ b/meta/recipes-bsp/grub/files/0001-configure.ac-Use-_zicsr_zifencei-extentions-on-riscv.patch @@ -0,0 +1,47 @@ +From f1217c803cec90813eb834dde7829f4961b2a2e4 Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Thu, 17 Feb 2022 15:07:02 -0800 +Subject: [PATCH] configure.ac: Use _zicsr_zifencei extentions on riscv + +From version 2.38, binutils defaults to ISA spec version 20191213. This +means that the csr read/write (csrr*/csrw*) instructions and fence.i +instruction has separated from the `I` extension, become two standalone +extensions: Zicsr and Zifencei. + +The fix is to specify those extensions explicitely in -march. Since we +are now using binutils 2.38+ in OE this is ok, a more upstreamable fix for +grub will be to detect these extentions, however thats not easy to +implement + +Upstream-Status: Inappropriate [OE specific] +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- + configure.ac | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/configure.ac b/configure.ac +index c7fc55a..072f2c9 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -849,14 +849,14 @@ if test x"$platform" != xemu ; then + [grub_cv_target_cc_soft_float="-mgeneral-regs-only"], []) + fi + if test "x$target_cpu" = xriscv32; then +- CFLAGS="$TARGET_CFLAGS -march=rv32imac -mabi=ilp32 -Werror" ++ CFLAGS="$TARGET_CFLAGS -march=rv32imac_zicsr_zifencei -mabi=ilp32 -Werror" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], +- [grub_cv_target_cc_soft_float="-march=rv32imac -mabi=ilp32"], []) ++ [grub_cv_target_cc_soft_float="-march=rv32imac_zicsr_zifencei -mabi=ilp32"], []) + fi + if test "x$target_cpu" = xriscv64; then +- CFLAGS="$TARGET_CFLAGS -march=rv64imac -mabi=lp64 -Werror" ++ CFLAGS="$TARGET_CFLAGS -march=rv64imac_zicsr_zifencei -mabi=lp64 -Werror" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], +- [grub_cv_target_cc_soft_float="-march=rv64imac -mabi=lp64"], []) ++ [grub_cv_target_cc_soft_float="-march=rv64imac_zicsr_zifencei -mabi=lp64"], []) + fi + if test "x$target_cpu" = xia64; then + CFLAGS="$TARGET_CFLAGS -mno-inline-float-divide -mno-inline-sqrt -Werror" +-- +2.35.1 + |