diff options
| author | Martin Roth <martinroth@google.com> | 2017-09-19 13:25:11 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-09-21 17:30:18 +0000 |
| commit | 229e021110e40f603bb12b634c4b91923ef02727 (patch) | |
| tree | f1bccad8d25a04d5a7250ead8e8cc86f3a11e735 /Makefile.inc | |
| parent | c800d90b34c5fb50a0681af74cb50e8753fd744e (diff) | |
Makefile.inc: Add left shift macro
Add a macro to shift a value to the left by a specified number of bits.
Change-Id: Ib3fb43b620f31fee2a41f00ddf7294edc81a60f6
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/21601
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Diffstat (limited to 'Makefile.inc')
| -rw-r--r-- | Makefile.inc | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/Makefile.inc b/Makefile.inc index 88a9a63ce7..cdebd1be0d 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -113,19 +113,20 @@ $(foreach supported_arch,$(ARCH_SUPPORTED), \ # macros work on all formats understood by printf(1) # values are space separated if using more than one value # -# int-add: adds an arbitrary length list of integers -# int-subtract: subtracts the the second of two integers from the first -# int-multiply: multiplies an arbitrary length list of integers -# int-divide: divides the first integer by the second -# int-remainder: arithmetic remainder of the first number divided by the second -# int-lt: 1 if the first value is less than the second. 0 otherwise -# int-gt: 1 if the first values is greater than the second. 0 otherwise -# int-eq: 1 if the two values are equal. 0 otherwise -# int-align: align $1 to $2 units -# file-size: returns the filesize of the given file -# tolower: returns the value in all lowercase -# toupper: returns the value in all uppercase -# ws_to_under: returns the value with any whitespace changed to underscores +# int-add: adds an arbitrary length list of integers +# int-subtract: subtracts the the second of two integers from the first +# int-multiply: multiplies an arbitrary length list of integers +# int-divide: divides the first integer by the second +# int-remainder: arithmetic remainder of the first number divided by the second +# int-shift-left: Shift $1 left by $2 bits +# int-lt: 1 if the first value is less than the second. 0 otherwise +# int-gt: 1 if the first values is greater than the second. 0 otherwise +# int-eq: 1 if the two values are equal. 0 otherwise +# int-align: align $1 to $2 units +# file-size: returns the filesize of the given file +# tolower: returns the value in all lowercase +# toupper: returns the value in all uppercase +# ws_to_under: returns the value with any whitespace changed to underscores _toint=$(shell printf "%d" $1) _int-add2=$(shell expr $(call _toint,$1) + $(call _toint,$2)) int-add=$(if $(filter 1,$(words $1)),$(strip $1),$(call int-add,$(call _int-add2,$(word 1,$1),$(word 2,$1)) $(wordlist 3,$(words $1),$1))) @@ -134,6 +135,7 @@ _int-multiply2=$(shell expr $(call _toint,$1) \* $(call _toint,$2)) int-multiply=$(if $(filter 1,$(words $1)),$(strip $1),$(call int-multiply,$(call _int-multiply2,$(word 1,$1),$(word 2,$1)) $(wordlist 3,$(words $1),$1))) int-divide=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) / $(call _toint,$(word 2,$1)))) int-remainder=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) % $(call _toint,$(word 2,$1)))) +int-shift-left=$(shell echo "$(call _toint,$(word 1, $1)) * (2 ^ $(call _toint,$(word 2, $1)))" | bc) int-lt=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) \< $(call _toint,$(word 2,$1)))) int-gt=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) \> $(call _toint,$(word 2,$1)))) int-eq=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) = $(call _toint,$(word 2,$1)))) |