make: fix where dependency *.d are stored.

In rules like "bar/%.o: %.c" there is a difference between $(*D) and
$(@D). $(*D) expands to '.', while $(@D) expands to 'bar'.  It is
cleaner to generate *.d in the same directory where appropriate *.o
resides. This allows precise including of dependency info from .d files.

As a hack, we also touch two sources for generated *.hex files.  Without
this hack, anyone doing "git pull; make" will not get *.hex rebuilt
correctly since the dependency file would be missing.

Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Victor Kaplansky 2015-08-09 12:39:53 +03:00 committed by Michael S. Tsirkin
parent 5c79ae3615
commit 998b7b1db4
3 changed files with 2 additions and 2 deletions

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@ -43,7 +43,6 @@ DefinitionBlock (
#include "acpi-dsdt-hpet.dsl"
/****************************************************************
* PIIX4 PM
****************************************************************/

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@ -22,6 +22,7 @@
* Based on acpi-dsdt.dsl, but heavily modified for q35 chipset.
*/
ACPI_EXTRACT_ALL_CODE Q35AcpiDsdtAmlCode
DefinitionBlock (

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@ -17,7 +17,7 @@ MAKEFLAGS += -rR
QEMU_CXXFLAGS = -D__STDC_LIMIT_MACROS $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls, $(QEMU_CFLAGS))
# Flags for dependency generation
QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d
QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(@D)/$(*F).d
# Same as -I$(SRC_PATH) -I., but for the nested source/object directories
QEMU_INCLUDES += -I$(<D) -I$(@D)