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| author | Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at> | 2013-08-25 00:10:56 +0000 |
|---|---|---|
| committer | Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at> | 2013-08-25 00:10:56 +0000 |
| commit | 9f401cf11570fdefac2a19577f7fca69d8035c9a (patch) | |
| tree | b49b6aa98e43f55001c6219d9cf1b003b4ec6922 | |
| parent | b695ff01c3b8798aae49e81f8ee8e25f5f3cf7e1 (diff) | |
| download | flashrom-9f401cf11570fdefac2a19577f7fca69d8035c9a.zip flashrom-9f401cf11570fdefac2a19577f7fca69d8035c9a.tar.gz | |
Makefile: Explain process of handling CONFIG_* variables
Corresponding to flashrom svn r1721.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
| -rw-r--r-- | Makefile | 15 |
1 files changed, 13 insertions, 2 deletions
@@ -61,10 +61,13 @@ CFLAGS += -Werror endif ############################################################################### -# General OS/architecture specific settings. +# General OS-specific settings. +# 1. Prepare for later by gathering information about host and target OS +# 2. Set compiler flags and parameters according to OSes +# 3. Likewise verify user-supplied CONFIG_* variables. # HOST_OS is only used to work around local toolchain issues. -HOST_OS ?= $(shell uname) +HOST_OS ?= $(shell uname) ifeq ($(HOST_OS), MINGW32_NT-5.1) # Explicitly set CC = gcc on MinGW, otherwise: "cc: command not found". CC = gcc @@ -263,6 +266,10 @@ override CONFIG_LINUX_SPI = no endif endif +############################################################################### +# General architecture-specific settings. +# Like above for the OS, below we verify user-supplied options depending on the target architecture. + # Determine the destination processor architecture. # IMPORTANT: The following line must be placed before ARCH is ever used # (of course), but should come after any lines setting CC because the line @@ -334,6 +341,9 @@ RELEASENAME ?= $(VERSION) SVNDEF := -D'FLASHROM_VERSION="$(VERSION)"' +############################################################################### +# Default settings of CONFIG_* variables. + # Always enable internal/onboard support for now. CONFIG_INTERNAL ?= yes @@ -426,6 +436,7 @@ endif ############################################################################### # Programmer drivers and programmer support infrastructure. +# Depending on the CONFIG_* variables set and verified above we set compiler flags and parameters below. FEATURE_CFLAGS += -D'CONFIG_DEFAULT_PROGRAMMER=$(CONFIG_DEFAULT_PROGRAMMER)' |
