tablet/grub
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
grub/conf/Makefile.common
Fangrui Song b16257b51b configure: Replace -Wl,-r,-d with -Wl,-r and add -fno-common 
In GNU ld and ld.lld, -d is used with -r to allocate space to COMMON symbols.
This behavior is presumably to work around legacy projects which inspect
relocatable output by themselves and do not handle COMMON symbols. The GRUB
does not do this.

See https://github.com/llvm/llvm-project/issues/53660
-d is quite useless and ld.lld 15.0.0 will make -d no-op.

COMMON symbols have special symbol resolution semantics which can cause surprise
(see https://maskray.me/blog/2022-02-06-all-about-common-symbols). GCC<10 and
Clang<11 defaulted to -fcommon. Just use -fno-common to avoid COMMON symbols.

Signed-off-by: Fangrui Song <maskray@google.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2022-03-07 15:05:22 +01:00

142 lines
5.0 KiB
Makefile
Raw Blame History

# -*- makefile -*-
CFLAGS_PLATFORM=
export LC_COLLATE := C
unexport LC_ALL
# Platform specific options
if COND_sparc64_ieee1275
LDFLAGS_PLATFORM = -Wl,-melf64_sparc
endif
if COND_arm
if !COND_emu
LDFLAGS_PLATFORM = -Wl,--wrap=__clear_cache
endif
endif
if COND_arm64
CFLAGS_PLATFORM += -mcmodel=large
endif
if COND_powerpc_ieee1275
CFLAGS_PLATFORM += -mcpu=powerpc
endif
# Other options
CPPFLAGS_DEFAULT = -DGRUB_FILE=\"$(subst $(srcdir)/,,$<)\"
CPPFLAGS_DEFAULT += -I$(builddir)
CPPFLAGS_DEFAULT += -I$(srcdir)
CPPFLAGS_DEFAULT += -I$(top_builddir)
CPPFLAGS_DEFAULT += -I$(top_srcdir)
CPPFLAGS_DEFAULT += -I$(top_srcdir)/include
CPPFLAGS_DEFAULT += -I$(top_builddir)/include
CPPFLAGS_DEFAULT += -I$(top_srcdir)/grub-core/lib/libgcrypt-grub/src/
CCASFLAGS_DEFAULT = $(CPPFLAGS_DEFAULT) -DASM_FILE=1
BUILD_CPPFLAGS += $(CPPFLAGS_DEFAULT)
CFLAGS_KERNEL = $(CFLAGS_PLATFORM) -ffreestanding
LDFLAGS_KERNEL = $(LDFLAGS_PLATFORM) -nostdlib $(TARGET_LDFLAGS_OLDMAGIC)
CPPFLAGS_KERNEL = $(CPPFLAGS_CPU) $(CPPFLAGS_PLATFORM) -DGRUB_KERNEL=1
CCASFLAGS_KERNEL = $(CCASFLAGS_CPU) $(CCASFLAGS_PLATFORM)
STRIPFLAGS_KERNEL = -R .rel.dyn -R .reginfo -R .note -R .comment -R .drectve -R .note.gnu.gold-version -R .MIPS.abiflags -R .ARM.exidx
CFLAGS_MODULE = $(CFLAGS_PLATFORM) -ffreestanding
LDFLAGS_MODULE = $(LDFLAGS_PLATFORM) -nostdlib $(TARGET_LDFLAGS_OLDMAGIC) -Wl,-r
CPPFLAGS_MODULE = $(CPPFLAGS_CPU) $(CPPFLAGS_PLATFORM)
CCASFLAGS_MODULE = $(CCASFLAGS_CPU) $(CCASFLAGS_PLATFORM)
CFLAGS_IMAGE = $(CFLAGS_PLATFORM) -fno-builtin
LDFLAGS_IMAGE = $(LDFLAGS_PLATFORM) -nostdlib $(TARGET_LDFLAGS_OLDMAGIC) -Wl,-S
CPPFLAGS_IMAGE = $(CPPFLAGS_CPU) $(CPPFLAGS_PLATFORM)
CCASFLAGS_IMAGE = $(CCASFLAGS_CPU) $(CCASFLAGS_PLATFORM)
CFLAGS_PROGRAM =
LDFLAGS_PROGRAM =
CPPFLAGS_PROGRAM =
CCASFLAGS_PROGRAM =
CFLAGS_LIBRARY =
CPPFLAGS_LIBRARY =
CCASFLAGS_LIBRARY =
# Other variables
grubconfdir = $(sysconfdir)/grub.d
platformdir = $(pkglibdir)/$(target_cpu)-$(platform)
starfielddir = $(pkgdatadir)/themes/starfield
CFLAGS_GNULIB = -Wno-undef -Wno-sign-compare -Wno-unused -Wno-unused-parameter -Wno-redundant-decls -Wno-unreachable-code -Wno-conversion
CPPFLAGS_GNULIB = -I$(top_builddir)/grub-core/lib/gnulib -I$(top_srcdir)/grub-core/lib/gnulib
CFLAGS_POSIX = -fno-builtin
CPPFLAGS_POSIX = -I$(top_srcdir)/grub-core/lib/posix_wrap
CFLAGS_GCRY = -Wno-error -Wno-missing-field-initializers -Wno-redundant-decls -Wno-undef $(CFLAGS_POSIX)
CPPFLAGS_GCRY = -I$(top_srcdir)/grub-core/lib/libgcrypt_wrap $(CPPFLAGS_POSIX) -D_GCRYPT_IN_LIBGCRYPT=1 -I$(top_srcdir)/include/grub/gcrypt
CPPFLAGS_EFIEMU = -I$(top_srcdir)/grub-core/efiemu/runtime
# List file macros for recognizing /interesting/ modules
CPPFLAGS_FS_LIST = -Dgrub_fs_register=FS_LIST_MARKER
CPPFLAGS_VIDEO_LIST= -Dgrub_video_register=VIDEO_LIST_MARKER
CPPFLAGS_PARTMAP_LIST = -Dgrub_partition_map_register=PARTMAP_LIST_MARKER
CPPFLAGS_PARTTOOL_LIST = -Dgrub_parttool_register=PARTTOOL_LIST_MARKER
CPPFLAGS_TERMINAL_LIST = '-Dgrub_term_register_input(...)=INPUT_TERMINAL_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_TERMINAL_LIST += '-Dgrub_term_register_output(...)=OUTPUT_TERMINAL_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_COMMAND_LIST = '-Dgrub_register_command(...)=COMMAND_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_COMMAND_LIST += '-Dgrub_register_command_lockdown(...)=COMMAND_LOCKDOWN_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_COMMAND_LIST += '-Dgrub_register_extcmd(...)=EXTCOMMAND_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_COMMAND_LIST += '-Dgrub_register_extcmd_lockdown(...)=EXTCOMMAND_LOCKDOWN_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_COMMAND_LIST += '-Dgrub_register_command_p1(...)=P1COMMAND_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_FDT_LIST := '-Dgrub_fdtbus_register(...)=FDT_DRIVER_LIST_MARKER(__VA_ARGS__)'
CPPFLAGS_MARKER = $(CPPFLAGS_FS_LIST) $(CPPFLAGS_VIDEO_LIST) \
$(CPPFLAGS_PARTTOOL_LIST) $(CPPFLAGS_PARTMAP_LIST) \
$(CPPFLAGS_TERMINAL_LIST) $(CPPFLAGS_COMMAND_LIST) \
$(CPPFLAGS_FDT_LIST)
# Define these variables to calm down automake
IMG_FILES =
MOD_FILES =
MODULE_FILES =
MARKER_FILES =
KERNEL_HEADER_FILES =
bin_SCRIPTS =
bin_PROGRAMS =
check_SCRIPTS_native =
check_SCRIPTS_nonnative =
check_PROGRAMS_native =
check_PROGRAMS_nonnative =
dist_grubconf_DATA =
dist_noinst_DATA =
grubconf_SCRIPTS =
man_MANS =
noinst_DATA =
noinst_SCRIPTS =
noinst_PROGRAMS =
noinst_LIBRARIES =
pkgdata_DATA =
platform_DATA =
platform_SCRIPTS =
platform_PROGRAMS =
sbin_SCRIPTS =
sbin_PROGRAMS =
EXTRA_DIST =
CLEANFILES =
BUILT_SOURCES =
# Rules for Automake input
.PRECIOUS: $(top_srcdir)/Makefile.util.am
$(top_srcdir)/Makefile.util.am: $(top_srcdir)/gentpl.py $(top_srcdir)/Makefile.util.def $(top_srcdir)/Makefile.utilgcry.def
$(PYTHON) $^ > $@.new || (rm -f $@.new; exit 1)
mv $@.new $@
.PRECIOUS: $(top_srcdir)/grub-core/Makefile.core.am
$(top_srcdir)/grub-core/Makefile.core.am: $(top_srcdir)/gentpl.py $(top_srcdir)/grub-core/Makefile.core.def $(top_srcdir)/grub-core/Makefile.gcry.def
if [ "x$$GRUB_CONTRIB" != x ]; then echo "You need to run ./bootstrap manually." >&2; exit 1; fi
$(PYTHON) $^ > $@.new || (rm -f $@.new; exit 1)
mv $@.new $@
Reference in New Issue View Git Blame Copy Permalink