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authorJulius Werner <jwerner@chromium.org>2015-03-12 23:17:16 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-04-22 08:41:01 +0200
commita32b6f0b7d3f35f58d2cfefd8d28c46a80a78ef7 (patch)
treecb570df57c9206389991026de91f99ce469b9dd7 /src/northbridge/amd/amdmct/amddefs.h
parentb16a6c4f5bf85856a67d6207d799e7db915002b6 (diff)
Makefile: Avoid duplicate class suffixes in $(call src-to-obj)
The build system uses the $(src-to-obj) function in multiple places to figure out the corresponding output object file for a certan source file, most importantly when generating the rule to build it. Usually this is pretty simple, but some odd cases are a little tricky... such as the auto-generated intermediary C files containing an array definition generated from an ASL file. These files have already been compiled per stage, so they contain the stage as a suffix and reside in the build directory (e.g. build/.../dsdt.ramstage.c). The previous $(src-to-obj) implementation just blindly appends the stage again and turns this into build/.../dsdt.ramstage.ramstage.o. This isn't very useful, so to avoid confusion this patch makes it strip additional stage suffixes for those intermediary files. This also fixes a bug with the ASL postprocessor, which didn't take this double suffix into account: it added build/.../dsdt.ramstage.o to ramstage-objs which should've been build/.../dsdt.ramstage.ramstage.o. This only worked by accident because make compiled the file with its implicit %.o: %.c rule instead. BRANCH=none BUG=chromium:466469 TEST=emerge-falco coreboot with the new make 4.1. Also build Falco and Veyron_Jerry with make -r -R to make sure there are no other accidental uses of implicit rules in our build system. Change-Id: I4aeaa60add1ef4215cb6c0b222c3886395c7a045 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: d9ea2e082eca1045409ea1f403082c97dedc70d8 Original-Change-Id: I951edbc9f653321a9084543a65009c6e9154d819 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/259950 Original-Reviewed-by: Mike Frysinger <vapier@chromium.org> Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/9861 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/northbridge/amd/amdmct/amddefs.h')
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