opensbi: Use -ffreestanding compiler options

This usually helps compiler to not use built-in optimizations
for string functions and mem* functions unnecessarily, since OE's
compiler is hosted for linux cross compile, this also means we instruct
it rightly for building a baremetal application

Refresh the patches to apply without fuzz
Fixes linking errors e.g.

platform/qemu/virt/lib/libplatsbi.a(sbi_string.o): in function `sbi_memset':
| /mnt/b/yoe/build/tmp/work/riscv64-yoe-linux/opensbi/0.5-r0/git/lib/sbi/sbi_string.c:102: undefined reference to `memset'
| collect2: error: ld returned 1 exit status

(From OE-Core rev: f599b6c77f3585c8917f4d685689da4cc8a8bf04)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 7 deletions

diff --git a/meta/recipes-bsp/opensbi/files/0001-Makefile-Don-t-specify-mabi-or-march.patch b/meta/recipes-bsp/opensbi/files/0001-Makefile-Don-t-specify-mabi-or-march.patch
index 9c2d0eb479..74d93618b2 100644
--- a/meta/recipes-bsp/opensbi/files/0001-Makefile-Don-t-specify-mabi-or-march.patch
+++ b/meta/recipes-bsp/opensbi/files/0001-Makefile-Don-t-specify-mabi-or-march.patch
@@ -13,11 +13,9 @@ Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
  Makefile | 2 --
  1 file changed, 2 deletions(-)
 
-diff --git a/Makefile b/Makefile
-index ae68f55..10851fc 100644
 --- a/Makefile
 +++ b/Makefile
-@@ -145,7 +145,6 @@ GENFLAGS    +=      $(firmware-genflags-y)
+@@ -162,7 +162,6 @@ GENFLAGS    +=      $(firmware-genflags-y)
  CFLAGS         =       -g -Wall -Werror -nostdlib -fno-strict-aliasing -O2
  CFLAGS         +=      -fno-omit-frame-pointer -fno-optimize-sibling-calls
  CFLAGS         +=      -mno-save-restore -mstrict-align
@@ -25,7 +23,7 @@ index ae68f55..10851fc 100644
  CFLAGS         +=      -mcmodel=$(PLATFORM_RISCV_CODE_MODEL)
  CFLAGS         +=      $(GENFLAGS)
  CFLAGS         +=      $(platform-cflags-y)
-@@ -158,7 +157,6 @@ CPPFLAGS    +=      $(firmware-cppflags-y)
+@@ -176,7 +175,6 @@ CPPFLAGS    +=      $(firmware-cppflags-y)
  ASFLAGS                =       -g -Wall -nostdlib -D__ASSEMBLY__
  ASFLAGS                +=      -fno-omit-frame-pointer -fno-optimize-sibling-calls
  ASFLAGS                +=      -mno-save-restore -mstrict-align
@@ -33,6 +31,3 @@ index ae68f55..10851fc 100644
  ASFLAGS                +=      -mcmodel=$(PLATFORM_RISCV_CODE_MODEL)
  ASFLAGS                +=      $(GENFLAGS)
  ASFLAGS                +=      $(platform-asflags-y)
--- 
-2.20.1
-