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roms: Allow passing configure options to the EDK2 build tools

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Since commit f590a812c2 we build the EDK2 EfiRom utility
unconditionally.

Some distributions require to use extra compiler/linker flags,
i.e. SUSE which enforces the PIE protection (see [*]).

EDK2 build tools already provide a set of variables for that,
use them to allow the caller to easily inject compiler/linker
options..

Now build scripts can pass extra options, example:

  $ make -C roms \
      EDK2_BASETOOLS_OPTFLAGS='-fPIE' \
      efirom

[*] https://lists.opensuse.org/opensuse-factory/2017-06/msg00403.html

Reported-by: Olaf Hering <olaf@aepfle.de>
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190409134536.15548-3-philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2019-04-09 15:45:36 +02:00 committed by Paolo Bonzini
parent d912e795e0
commit 1cab464136
1 changed files with 14 additions and 1 deletions
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15
roms/Makefile
View file

@ -120,8 +120,21 @@ build-efi-roms: build-pxe-roms
$(patsubst %,bin-i386-efi/%.efidrv,$(pxerom_targets)) \
$(patsubst %,bin-x86_64-efi/%.efidrv,$(pxerom_targets))
# Build scripts can pass compiler/linker flags to the EDK2 build tools
# via the EDK2_BASETOOLS_OPTFLAGS (CPPFLAGS and CFLAGS) and
# EDK2_BASETOOLS_LDFLAGS (LDFLAGS) environment variables.
#
# Example:
#
# make -C roms \
# EDK2_BASETOOLS_OPTFLAGS='...' \
# EDK2_BASETOOLS_LDFLAGS='...' \
# efirom
#
$(EDK2_EFIROM):
$(MAKE) -C edk2/BaseTools
$(MAKE) -C edk2/BaseTools \
EXTRA_OPTFLAGS='$(EDK2_BASETOOLS_OPTFLAGS)' \
EXTRA_LDFLAGS='$(EDK2_BASETOOLS_LDFLAGS)'
slof:
$(MAKE) -C SLOF CROSS=$(powerpc64_cross_prefix) qemu