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-rw-r--r--examples/Makefile9
-rw-r--r--examples/api/Makefile72
-rw-r--r--examples/standalone/Makefile89
-rw-r--r--examples/standalone/stubs.c13
4 files changed, 89 insertions, 94 deletions
diff --git a/examples/Makefile b/examples/Makefile
new file mode 100644
index 0000000000..18d008e7b5
--- /dev/null
+++ b/examples/Makefile
@@ -0,0 +1,9 @@
+ifndef CONFIG_SANDBOX
+
+ifdef FTRACE
+subdir-ccflags-y += -finstrument-functions -DFTRACE
+endif
+
+subdir-y += standalone
+subdir-$(CONFIG_API) += api
+endif
diff --git a/examples/api/Makefile b/examples/api/Makefile
index cad10a3ecb..6cf23d10ac 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -11,59 +11,47 @@ ifeq ($(ARCH),arm)
LOAD_ADDR = 0x1000000
endif
-include $(TOPDIR)/config.mk
-
# Resulting ELF and binary exectuables will be named demo and demo.bin
-OUTPUT = $(obj)demo
+extra-y = demo
# Source files located in the examples/api directory
-SOBJ_FILES-y += crt0.o
-COBJ_FILES-y += demo.o
-COBJ_FILES-y += glue.o
-COBJ_FILES-y += libgenwrap.o
+OBJ-y += crt0.o
+OBJ-y += demo.o
+OBJ-y += glue.o
+OBJ-y += libgenwrap.o
# Source files which exist outside the examples/api directory
-EXT_COBJ_FILES-y += lib/crc32.o
-EXT_COBJ_FILES-y += lib/ctype.o
-EXT_COBJ_FILES-y += lib/div64.o
-EXT_COBJ_FILES-y += lib/string.o
-EXT_COBJ_FILES-y += lib/time.o
-EXT_COBJ_FILES-y += lib/vsprintf.o
-EXT_SOBJ_FILES-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
-
-# Create a list of source files so their dependencies can be auto-generated
-SRCS += $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c))
-SRCS += $(addprefix $(SRCTREE)/,$(EXT_SOBJ_FILES-y:.o=.S))
-SRCS += $(addprefix $(SRCTREE)/examples/api/,$(COBJ_FILES-y:.o=.c))
-SRCS += $(addprefix $(SRCTREE)/examples/api/,$(SOBJ_FILES-y:.o=.S))
+EXT_COBJ-y += lib/crc32.o
+EXT_COBJ-y += lib/ctype.o
+EXT_COBJ-y += lib/div64.o
+EXT_COBJ-y += lib/string.o
+EXT_COBJ-y += lib/time.o
+EXT_COBJ-y += lib/vsprintf.o
+EXT_SOBJ-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
# Create a list of object files to be compiled
-OBJS += $(addprefix $(obj),$(SOBJ_FILES-y))
-OBJS += $(addprefix $(obj),$(COBJ_FILES-y))
-OBJS += $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y)))
-OBJS += $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y)))
-
-all: $(obj).depend $(OUTPUT)
+OBJS := $(OBJ-y) $(notdir $(EXT_COBJ-y) $(EXT_SOBJ-y))
+targets += $(OBJS)
+OBJS := $(addprefix $(obj)/,$(OBJS))
#########################################################################
-$(OUTPUT): $(OBJS)
- $(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $^ $(PLATFORM_LIBS)
- $(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null
+quiet_cmd_link_demo = LD $@
+cmd_link_demo = $(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $(filter-out $(PHONY), $^) $(PLATFORM_LIBS)
-# Rule to build generic library C files
-$(obj)%.o: $(SRCTREE)/lib/%.c
- $(CC) -g $(CFLAGS) -c -o $@ $<
+$(obj)/demo: $(OBJS) FORCE
+ $(call if_changed,link_demo)
-# Rule to build architecture-specific library assembly files
-$(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
- $(CC) -g $(CFLAGS) -c -o $@ $<
+# demo.bin is never genrated. Is this necessary?
+OBJCOPYFLAGS_demo.bin := -O binary
+$(obj)/demo.bin: $(obj)/demo FORCE
+ $(call if_changed,objcopy)
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
+# Rule to build generic library C files
+$(addprefix $(obj)/,$(notdir $(EXT_COBJ-y))): $(obj)/%.o: lib/%.c FORCE
+ $(call cmd,force_checksrc)
+ $(call if_changed_rule,cc_o_c)
-#########################################################################
+# Rule to build architecture-specific library assembly files
+$(addprefix $(obj)/,$(notdir $(EXT_SOBJ-y))): $(obj)/%.o: arch/powerpc/lib/%.S FORCE
+ $(call if_changed_dep,as_o_S)
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile
index 0841c758ff..5b227cd898 100644
--- a/examples/standalone/Makefile
+++ b/examples/standalone/Makefile
@@ -5,45 +5,38 @@
# SPDX-License-Identifier: GPL-2.0+
#
-include $(TOPDIR)/config.mk
-
-ELF-y := hello_world
-
-ELF-$(CONFIG_SMC91111) += smc91111_eeprom
-ELF-$(CONFIG_SMC911X) += smc911x_eeprom
-ELF-$(CONFIG_SPI_FLASH_ATMEL) += atmel_df_pow2
-ELF-$(CONFIG_MPC5xxx) += interrupt
-ELF-$(CONFIG_8xx) += test_burst timer
-ELF-$(CONFIG_8260) += mem_to_mem_idma2intr
-ELF-$(CONFIG_PPC) += sched
+extra-y := hello_world
+extra-$(CONFIG_SMC91111) += smc91111_eeprom
+extra-$(CONFIG_SMC911X) += smc911x_eeprom
+extra-$(CONFIG_SPI_FLASH_ATMEL) += atmel_df_pow2
+extra-$(CONFIG_MPC5xxx) += interrupt
+extra-$(CONFIG_8xx) += test_burst timer
+extra-$(CONFIG_8260) += mem_to_mem_idma2intr
+extra-$(CONFIG_PPC) += sched
#
# Some versions of make do not handle trailing white spaces properly;
# leading to build failures. The problem was found with GNU Make 3.80.
# Using 'strip' as a workaround for the problem.
#
-ELF := $(strip $(ELF-y))
+ELF := $(strip $(extra-y))
-SREC := $(addsuffix .srec,$(ELF))
-BIN := $(addsuffix .bin,$(ELF))
+extra-y += $(addsuffix .srec,$(extra-y)) $(addsuffix .bin,$(extra-y))
+clean-files := $(extra-) $(addsuffix .srec,$(extra-)) $(addsuffix .bin,$(extra-))
COBJS := $(ELF:=.o)
-LIB = $(obj)libstubs.o
+LIB = $(obj)/libstubs.o
-LIBAOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
-LIBAOBJS-$(CONFIG_8xx) += test_burst_lib.o
-LIBAOBJS := $(LIBAOBJS-y)
+LIBOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
+LIBOBJS-$(CONFIG_8xx) += test_burst_lib.o
+LIBOBJS-y += stubs.o
-LIBCOBJS = stubs.o
+.SECONDARY: $(call objectify,$(COBJS))
+targets += $(patsubst $(obj)/%,%,$(LIB)) $(COBJS) $(LIBOBJS-y)
-LIBOBJS = $(addprefix $(obj),$(LIBAOBJS) $(LIBCOBJS))
-
-SRCS := $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S)
-OBJS := $(addprefix $(obj),$(COBJS))
-ELF := $(addprefix $(obj),$(ELF))
-BIN := $(addprefix $(obj),$(BIN))
-SREC := $(addprefix $(obj),$(SREC))
+LIBOBJS := $(addprefix $(obj)/,$(LIBOBJS-y))
+ELF := $(addprefix $(obj)/,$(ELF))
gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
@@ -52,42 +45,34 @@ gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
# also causes the entry point of the standalone application to be
# inconsistent.
ifeq ($(ARCH),powerpc)
-AFLAGS := $(filter-out $(RELFLAGS),$(AFLAGS))
-CFLAGS := $(filter-out $(RELFLAGS),$(CFLAGS))
-CPPFLAGS := $(filter-out $(RELFLAGS),$(CPPFLAGS))
+# FIX ME
+CPPFLAGS := $(filter-out $(RELFLAGS), $(CPPFLAGS))
endif
# We don't want gcc reordering functions if possible. This ensures that an
# application's entry point will be the first function in the application's
# source file.
-CFLAGS_NTR := $(call cc-option,-fno-toplevel-reorder)
-CFLAGS += $(CFLAGS_NTR)
-
-all: $(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF)
+ccflags-y += $(call cc-option,-fno-toplevel-reorder)
#########################################################################
-$(LIB): $(obj).depend $(LIBOBJS)
- $(call cmd_link_o_target, $(LIBOBJS))
-$(ELF):
-$(obj)%: $(obj)%.o $(LIB)
- $(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
- -o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
- -L$(gcclibdir) -lgcc
+quiet_cmd_link_lib = LD $@
+ cmd_link_lib = $(LD) $(ld_flags) -r -o $@ $(filter $(LIBOBJS), $^)
-$(SREC):
-$(obj)%.srec: $(obj)%
- $(OBJCOPY) -O srec $< $@ 2>/dev/null
+$(LIB): $(LIBOBJS) FORCE
+ $(call if_changed,link_lib)
-$(BIN):
-$(obj)%.bin: $(obj)%
- $(OBJCOPY) -O binary $< $@ 2>/dev/null
+quiet_cmd_link_elf = LD $@
+ cmd_link_elf = $(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
+ -o $@ -e $(SYM_PREFIX)$(@F) $< $(LIB) -L$(gcclibdir) -lgcc
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
+$(ELF): $(obj)/%: $(obj)/%.o $(LIB) FORCE
+ $(call if_changed,link_elf)
-sinclude $(obj).depend
+$(obj)/%.srec: OBJCOPYFLAGS := -O srec
+$(obj)/%.srec: $(obj)/% FORCE
+ $(call if_changed,objcopy)
-#########################################################################
+$(obj)/%.bin: OBJCOPYFLAGS := -O binary
+$(obj)/%.bin: $(obj)/% FORCE
+ $(call if_changed,objcopy)
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c
index 32a19ce354..c5c025dab3 100644
--- a/examples/standalone/stubs.c
+++ b/examples/standalone/stubs.c
@@ -210,6 +210,19 @@ gd_t *global_data;
" l.jr r13\n" \
" l.nop\n" \
: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r13");
+#elif defined(CONFIG_ARC)
+/*
+ * r25 holds the pointer to the global_data. r10 is call clobbered.
+ */
+#define EXPORT_FUNC(x) \
+ asm volatile( \
+" .align 4\n" \
+" .globl " #x "\n" \
+#x ":\n" \
+" ld r10, [r25, %0]\n" \
+" ld r10, [r10, %1]\n" \
+" j [r10]\n" \
+ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r10");
#else
/*" addi $sp, $sp, -24\n" \
" br $r16\n" \*/
generated by cgit (git 2.34.1) at 2025-01-14 21:22:30 +0000