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tools: respect CFLAGS and LDFLAGS from environment

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The build environment might want to pass extra CFLAGS or LDFLAGS to the build of
the acrn tools. With conventional build systems like automake, Meson, etc this
is possible by just setting CFLAGS and LDFLAGS in the environment.

However as the tools are built using bare Makefiles, these environment variables
are overwritten.  Respect them by renaming the variables in the Makefiles to
e.g. LOG_CFLAGS and adding CFLAGS to that.

Tracked-On: #2316
Signed-off-by: Ross Burton <ross.burton@intel.com>
This commit is contained in:
Ross Burton
2019-01-11 11:27:50 +00:00
committed by wenlingz
parent 899c914606
commit 912be6c4dd
3 changed files with 64 additions and 58 deletions
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34
tools/acrnlog/Makefile
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@@ -2,15 +2,16 @@ T := $(CURDIR)
OUT_DIR ?= $(shell mkdir -p $(T)/build;cd $(T)/build;pwd)
CC ?= gcc
CFLAGS := -g -O0 -std=gnu11
CFLAGS += -D_GNU_SOURCE
CFLAGS += -DNO_OPENSSL
CFLAGS += -m64
CFLAGS += -Wall -ffunction-sections
CFLAGS += -Werror
CFLAGS += -O2 -D_FORTIFY_SOURCE=2
CFLAGS += -Wformat -Wformat-security -fno-strict-aliasing
CFLAGS += -fpie -fpic
LOG_CFLAGS := -g -O0 -std=gnu11
LOG_CFLAGS += -D_GNU_SOURCE
LOG_CFLAGS += -DNO_OPENSSL
LOG_CFLAGS += -m64
LOG_CFLAGS += -Wall -ffunction-sections
LOG_CFLAGS += -Werror
LOG_CFLAGS += -O2 -D_FORTIFY_SOURCE=2
LOG_CFLAGS += -Wformat -Wformat-security -fno-strict-aliasing
LOG_CFLAGS += -fpie -fpic
LOG_CFLAGS += $(CFLAGS)
GCC_MAJOR=$(shell echo __GNUC__ | $(CC) -E -x c - | tail -n 1)
GCC_MINOR=$(shell echo __GNUC_MINOR__ | $(CC) -E -x c - | tail -n 1)
@@ -20,22 +21,23 @@ STACK_PROTECTOR := 1
ifdef STACK_PROTECTOR
ifeq (true, $(shell [ $(GCC_MAJOR) -gt 4 ] && echo true))
CFLAGS += -fstack-protector-strong
LOG_CFLAGS += -fstack-protector-strong
else
ifeq (true, $(shell [ $(GCC_MAJOR) -eq 4 ] && [ $(GCC_MINOR) -ge 9 ] && echo true))
CFLAGS += -fstack-protector-strong
LOG_CFLAGS += -fstack-protector-strong
else
CFLAGS += -fstack-protector
LOG_CFLAGS += -fstack-protector
endif
endif
endif
LDFLAGS := -Wl,-z,noexecstack
LDFLAGS += -Wl,-z,relro,-z,now
LDFLAGS += -pie
LOG_LDFLAGS := -Wl,-z,noexecstack
LOG_LDFLAGS += -Wl,-z,relro,-z,now
LOG_LDFLAGS += -pie
LOG_LDFLAGS += $(LDFLAGS)
all:
$(CC) -g acrnlog.c -o $(OUT_DIR)/acrnlog -lpthread $(CFLAGS) $(LDFLAGS)
$(CC) -g acrnlog.c -o $(OUT_DIR)/acrnlog -lpthread $(LOG_CFLAGS) $(LOG_LDFLAGS)
cp acrnlog.service $(OUT_DIR)/acrnlog.service
clean: