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authorRonald G. Minnich <rminnich@gmail.com>2018-09-14 01:21:05 -0700
committerRonald G. Minnich <rminnich@gmail.com>2018-09-14 09:59:17 +0000
commit95c331b94b1d04ea34b480c83613c2141a02697e (patch)
treec21c9753964d6d70e8fec85e9b6f075cac87883f /payloads/linuxcheck/Makefile
parent374d992fc831300377216fd3f7c3137d4b53ab36 (diff)
downloadcoreboot-95c331b94b1d04ea34b480c83613c2141a02697e.tar.xz
rampayload: Add the linuxcheck payload
The i386.c file uses standard 3f8 UART for some simple diagnostic prints, and the libpayload console otherwise. This payload was used to debug Linux as a rampayload and was very helpful for that work. Change-Id: I1cce5528780cd825fd91a88137fa70abd9f218e7 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://review.coreboot.org/28600 Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'payloads/linuxcheck/Makefile')
-rw-r--r--payloads/linuxcheck/Makefile37
1 files changed, 37 insertions, 0 deletions
diff --git a/payloads/linuxcheck/Makefile b/payloads/linuxcheck/Makefile
new file mode 100644
index 0000000000..b967369e1a
--- /dev/null
+++ b/payloads/linuxcheck/Makefile
@@ -0,0 +1,37 @@
+LIBPAYLOAD_DIR=$(CURDIR)/libpayload
+XCOMPILE=$(LIBPAYLOAD_DIR)/libpayload.xcompile
+# build libpayload and put .config file in $(CURDIR) instead of ../libpayload
+# to avoid pollute the libpayload source directory and possible conflicts
+LPOPTS=obj="$(CURDIR)/build" DESTDIR="$(CURDIR)" DOTCONFIG="$(CURDIR)/.config"
+CFLAGS += -Wall -Werror -Os -ffreestanding -nostdinc -nostdlib
+ifeq ($(CONFIG_ARCH_X86),y)
+TARGETARCH = i386
+endif
+
+all: linuxcheck.elf
+
+$(LIBPAYLOAD_DIR):
+ $(MAKE) -C ../libpayload $(LPOPTS) defconfig
+ $(MAKE) -C ../libpayload $(LPOPTS)
+ $(MAKE) -C ../libpayload $(LPOPTS) install
+
+ifneq ($(strip $(wildcard libpayload)),)
+include $(XCOMPILE)
+LPGCC = CC="$(GCC_CC_x86_32)" "$(LIBPAYLOAD_DIR)/bin/lpgcc"
+%.elf: %.c Makefile
+ $(LPGCC) $(CFLAGS) -o $*.elf $*.c $(TARGETARCH).c
+else
+# If libpayload is not found, first build libpayload,
+# then do the make, this time it'll find libpayload
+# and generate the linuxcheck.elf target
+%.elf: $(LIBPAYLOAD_DIR)
+ $(MAKE) all
+endif
+
+clean:
+ rm -f linuxcheck.elf
+
+distclean: clean
+ rm -rf build libpayload .config .config.old
+
+.PHONY: all clean distclean