Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-04 19:20:22 +01:00
Code Issues Actions 52 Packages Projects Releases Wiki Activity

qemu/Makefile: Allow overriding floating point mode by boards.

Browse Source 
This commit lets board use a different floating point mode rather than
the usual soft-float that was the original default for all QEMU-based
boards.

The configuration options are the same available in the "stm32" port.
Boards can set "MICROPY_FLOAT_IMPL" to either "float", "double", or
"none" to indicate which floating point mode they want, and optionally
"SUPPORTS_HARDWARE_FP_SINGLE" or "SUPPORTS_HARDWARE_FP_DOUBLE" can be
set to 1 to further indicate the hardware capabilities of the hardware
floating point unit, if present.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
This commit is contained in:
Alessandro Gatti
2025-07-24 15:28:48 +02:00
committed by Damien George
parent b0fd0079f4
commit 87099b5731
2 changed files with 33 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
ports/qemu/Makefile
View File

@@ -36,6 +36,8 @@ MICROPY_HEAP_SIZE ?= 143360
FROZEN_MANIFEST ?= "require('unittest'); freeze('test-frzmpy', ('frozen_asm_rv32.py', 'frozen_const.py', 'frozen_viper.py', 'native_frozen_align.py'))"
endif
MICROPY_FLOAT_IMPL ?= float
# include py core make definitions
include $(TOP)/py/py.mk
include $(TOP)/extmod/extmod.mk
@@ -44,6 +46,20 @@ GIT_SUBMODULES += lib/berkeley-db-1.xx
CFLAGS += -DMICROPY_HEAP_SIZE=$(MICROPY_HEAP_SIZE)
ifeq ($(MICROPY_FLOAT_IMPL),double)
CFLAGS += -DMICROPY_FLOAT_IMPL=MICROPY_FLOAT_IMPL_DOUBLE
else ifeq ($(MICROPY_FLOAT_IMPL),float)
CFLAGS += -DMICROPY_FLOAT_IMPL=MICROPY_FLOAT_IMPL_FLOAT -fsingle-precision-constant
else
CFLAGS += -DMICROPY_FLOAT_IMPL=MICROPY_FLOAT_IMPL_NONE
endif
ifeq ($(SUPPORTS_HARDWARE_FP_SINGLE),1)
CFLAGS += -DMICROPY_HW_FPU=1
else ifeq ($(SUPPORTS_HARDWARE_FP_DOUBLE),1)
CFLAGS += -DMICROPY_HW_FPU=1
endif
################################################################################
# ARM specific settings
@@ -156,16 +172,29 @@ SRC_C += \
shared/runtime/stdout_helpers.c \
shared/runtime/sys_stdio_mphal.c \
LIB_SRC_C += $(SRC_LIB_LIBM_C)
LIB_SRC_C += $(SRC_LIB_LIBM_SQRT_SW_C)
ifeq ($(MICROPY_FLOAT_IMPL),double)
LIBM_SRC_C += $(SRC_LIB_LIBM_DBL_C)
ifeq ($(SUPPORTS_HARDWARE_FP_DOUBLE),1)
LIBM_SRC_C += $(SRC_LIB_LIBM_DBL_SQRT_HW_C)
else
LIBM_SRC_C += $(SRC_LIB_LIBM_DBL_SQRT_SW_C)
endif
else
LIBM_SRC_C += $(SRC_LIB_LIBM_C)
ifeq ($(SUPPORTS_HARDWARE_FP_SINGLE),1)
LIBM_SRC_C += $(SRC_LIB_LIBM_SQRT_HW_C)
else
LIBM_SRC_C += $(SRC_LIB_LIBM_SQRT_SW_C)
endif
endif
OBJ += $(PY_O)
OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_BOARD_O))
OBJ += $(addprefix $(BUILD)/, $(LIB_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(LIBM_SRC_C:.c=.o))
# List of sources for qstr extraction
SRC_QSTR += $(SRC_C) $(LIB_SRC_C)
SRC_QSTR += $(SRC_C) $(LIBM_SRC_C)
################################################################################
# Main targets

1
ports/qemu/mpconfigport.h
View File

@@ -51,7 +51,6 @@
#define MICROPY_ENABLE_GC (1)
#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (1)
#define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_MPZ)
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT)
#define MICROPY_WARNINGS (1)
#define MICROPY_PY_SYS_PLATFORM "qemu"
#define MICROPY_PY_SYS_STDIO_BUFFER (0)