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Merged
hathach merged 1 commit into from
Apr 6, 2026
Merged

Remove IAR toolchain support from make build system #3563

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4 changes: 0 additions & 4 deletions examples/build_system/make/cpu/arm1176jzf-s.mk
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Expand Up @@ -2,8 +2,4 @@ ifeq ($(TOOLCHAIN),gcc)
CFLAGS += \
-mcpu=arm1176jzf-s \

else ifeq ($(TOOLCHAIN),iar)
#CFLAGS += --cpu cortex-a53
#ASFLAGS += --cpu cortex-a53

endif
4 changes: 0 additions & 4 deletions examples/build_system/make/cpu/arm926ej-s.mk
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Expand Up @@ -2,8 +2,4 @@ ifeq ($(TOOLCHAIN),gcc)
CFLAGS += \
-mcpu=arm926ej-s \

else ifeq ($(TOOLCHAIN),iar)
#CFLAGS += --cpu cortex-a53
#ASFLAGS += --cpu cortex-a53

endif
7 changes: 0 additions & 7 deletions examples/build_system/make/cpu/cortex-a53.mk
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Expand Up @@ -2,11 +2,4 @@ ifeq ($(TOOLCHAIN),gcc)
CFLAGS += \
-mcpu=cortex-a53 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-a53 \

ASFLAGS += \
--cpu cortex-a53 \

endif
7 changes: 0 additions & 7 deletions examples/build_system/make/cpu/cortex-a72.mk
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Expand Up @@ -2,11 +2,4 @@ ifeq ($(TOOLCHAIN),gcc)
CFLAGS += \
-mcpu=cortex-a72 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-a72 \

ASFLAGS += \
--cpu cortex-a72 \

endif
5 changes: 0 additions & 5 deletions examples/build_system/make/cpu/cortex-m0.mk
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Expand Up @@ -9,11 +9,6 @@ else ifeq ($(TOOLCHAIN),clang)
--target=arm-none-eabi \
-mcpu=cortex-m0 \

else ifeq ($(TOOLCHAIN),iar)
# IAR Flags
CFLAGS += --cpu cortex-m0
ASFLAGS += --cpu cortex-m0

else
$(error "TOOLCHAIN is not supported")
endif
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5 changes: 0 additions & 5 deletions examples/build_system/make/cpu/cortex-m0plus.mk
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Expand Up @@ -9,11 +9,6 @@ else ifeq ($(TOOLCHAIN),clang)
--target=arm-none-eabi \
-mcpu=cortex-m0plus \

else ifeq ($(TOOLCHAIN),iar)
# IAR Flags
CFLAGS += --cpu cortex-m0+
ASFLAGS += --cpu cortex-m0+

else
$(error "TOOLCHAIN is not supported")
endif
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5 changes: 0 additions & 5 deletions examples/build_system/make/cpu/cortex-m23.mk
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Expand Up @@ -9,11 +9,6 @@ else ifeq ($(TOOLCHAIN),clang)
--target=arm-none-eabi \
-mcpu=cortex-m23 \

else ifeq ($(TOOLCHAIN),iar)
# IAR Flags
CFLAGS += --cpu cortex-m23
ASFLAGS += --cpu cortex-m23

else
$(error "TOOLCHAIN is not supported")
endif
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5 changes: 0 additions & 5 deletions examples/build_system/make/cpu/cortex-m3.mk
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Expand Up @@ -9,11 +9,6 @@ else ifeq ($(TOOLCHAIN),clang)
--target=arm-none-eabi \
-mcpu=cortex-m3 \

else ifeq ($(TOOLCHAIN),iar)
# IAR Flags
CFLAGS += --cpu cortex-m3
ASFLAGS += --cpu cortex-m3

else
$(error "TOOLCHAIN is not supported")
endif
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7 changes: 0 additions & 7 deletions examples/build_system/make/cpu/cortex-m33-nodsp-nofp.mk
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Expand Up @@ -10,13 +10,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m33 \
-mfpu=softvp \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-m33+nodsp \

ASFLAGS += \
--cpu cortex-m33+nodsp \

else
$(error "TOOLCHAIN is not supported")
endif
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9 changes: 0 additions & 9 deletions examples/build_system/make/cpu/cortex-m33.mk
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Expand Up @@ -11,15 +11,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m33 \
-mfpu=fpv5-sp-d16 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-m33 \
--fpu VFPv5-SP \

ASFLAGS += \
--cpu cortex-m33 \
--fpu VFPv5-SP \

else
$(error "TOOLCHAIN is not supported")
endif
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4 changes: 0 additions & 4 deletions examples/build_system/make/cpu/cortex-m4-nofpu.mk
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Expand Up @@ -9,10 +9,6 @@ else ifeq ($(TOOLCHAIN),clang)
--target=arm-none-eabi \
-mcpu=cortex-m4

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += --cpu cortex-m4 --fpu none
ASFLAGS += --cpu cortex-m4 --fpu none

else
$(error "TOOLCHAIN is not supported")
endif
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4 changes: 0 additions & 4 deletions examples/build_system/make/cpu/cortex-m4.mk
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Expand Up @@ -11,10 +11,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m4 \
-mfpu=fpv4-sp-d16 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += --cpu cortex-m4 --fpu VFPv4-SP
ASFLAGS += --cpu cortex-m4 --fpu VFPv4-SP

else
$(error "TOOLCHAIN is not supported")
endif
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9 changes: 0 additions & 9 deletions examples/build_system/make/cpu/cortex-m55.mk
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Expand Up @@ -12,15 +12,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m55 \
-mfpu=fpv5-d16 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-m55 \
--fpu VFPv5_D16 \

ASFLAGS += \
--cpu cortex-m55 \
--fpu VFPv5_D16 \

else
$(error "TOOLCHAIN is not supported")
endif
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9 changes: 0 additions & 9 deletions examples/build_system/make/cpu/cortex-m7-fpsp.mk
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Expand Up @@ -11,15 +11,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m7 \
-mfpu=fpv5-sp-d16 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-m7 \
--fpu VFPv5_sp \

ASFLAGS += \
--cpu cortex-m7 \
--fpu VFPv5_sp \

else
$(error "TOOLCHAIN is not supported")
endif
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9 changes: 0 additions & 9 deletions examples/build_system/make/cpu/cortex-m7.mk
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Expand Up @@ -11,15 +11,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m7 \
-mfpu=fpv5-d16 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-m7 \
--fpu VFPv5_D16 \

ASFLAGS += \
--cpu cortex-m7 \
--fpu VFPv5_D16 \

else
$(error "TOOLCHAIN is not supported")
endif
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9 changes: 0 additions & 9 deletions examples/build_system/make/cpu/cortex-m85.mk
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Expand Up @@ -11,15 +11,6 @@ else ifeq ($(TOOLCHAIN),clang)
-mcpu=cortex-m85 \
-mfpu=fpv5-d16 \

else ifeq ($(TOOLCHAIN),iar)
CFLAGS += \
--cpu cortex-m85 \
--fpu VFPv5_D16 \

ASFLAGS += \
--cpu cortex-m85 \
--fpu VFPv5_D16 \

else
$(error "TOOLCHAIN is not supported")
endif
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2 changes: 0 additions & 2 deletions examples/build_system/make/cpu/msp430.mk
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Expand Up @@ -2,8 +2,6 @@ ifeq ($(TOOLCHAIN),gcc)
# nothing to add
else ifeq ($(TOOLCHAIN),clang)
# nothing to add
else ifeq ($(TOOLCHAIN),iar)
# nothing to add
else
$(error "TOOLCHAIN is not supported")
endif
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2 changes: 0 additions & 2 deletions examples/build_system/make/cpu/rv32i-ilp32.mk
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Expand Up @@ -8,8 +8,6 @@ else ifeq ($(TOOLCHAIN),clang)
-march=rv32i_zicsr \
-mabi=ilp32 \

else ifeq ($(TOOLCHAIN),iar)
$(error not support)
endif

# For freeRTOS port source
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3 changes: 0 additions & 3 deletions examples/build_system/make/cpu/rv32imac-ilp32.mk
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Expand Up @@ -8,9 +8,6 @@ else ifeq ($(TOOLCHAIN),clang)
-march=rv32imac_zicsr_zifencei \
-mabi=ilp32 \

else ifeq ($(TOOLCHAIN),iar)
$(error not support)

endif

# For freeRTOS port source
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13 changes: 0 additions & 13 deletions examples/build_system/make/toolchain/arm_iar.mk
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This file was deleted.

11 changes: 2 additions & 9 deletions examples/build_system/make/toolchain/gcc_rules.mk
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@@ -1,5 +1,3 @@
SRC_S += $(SRC_S_GCC)

# Assembly files can be name with upper case .S, convert it to .s
SRC_S := $(SRC_S:.S=.s)

Expand All @@ -9,7 +7,7 @@ SRC_S := $(SRC_S:.S=.s)
OBJ += $(addprefix $(BUILD)/obj/, $(SRC_S:.s=_asm.o))
OBJ += $(addprefix $(BUILD)/obj/, $(SRC_C:.c=.o))

CFLAGS += $(CFLAGS_GCC) -MD
CFLAGS += -MD

Comment on lines +10 to 11
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Copilot AI Apr 5, 2026

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-MD is already added in examples/build_system/make/toolchain/gcc_common.mk (CFLAGS baseline). Adding it again here is redundant and makes it harder to reason about the final flag set. Consider removing this extra CFLAGS += -MD line and rely on gcc_common.mk for dependency generation.

Suggested change
CFLAGS += -MD

Copilot uses AI. Check for mistakes.
# LTO makes it difficult to analyze map file for optimizing size purpose
# We will run this option in ci
Expand All @@ -25,18 +23,13 @@ ifeq ($(TOOLCHAIN),clang)
CFLAGS += $(CFLAGS_CLANG)
LDFLAGS += $(CFLAGS) $(LDFLAGS_CLANG)
else
LDFLAGS += $(CFLAGS) $(LDFLAGS_GCC)
LDFLAGS += $(CFLAGS)
endif

# TODO should be removed after all examples are updated
ifdef LD_FILE
LDFLAGS += -Wl,-T,$(TOP)/$(LD_FILE)
endif

ifdef LD_FILE_GCC
LDFLAGS += -Wl,-T,$(TOP)/$(LD_FILE_GCC)
endif

ASFLAGS += $(CFLAGS)

# libc
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44 changes: 0 additions & 44 deletions examples/build_system/make/toolchain/iar_rules.mk
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This file was deleted.

2 changes: 1 addition & 1 deletion examples/device/net_lwip_webserver/Makefile
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@@ -1,7 +1,7 @@
include ../../../hw/bsp/family_support.mk

# suppress warning caused by lwip
CFLAGS_GCC += \
CFLAGS += \
-Wno-error=null-dereference \
-Wno-error=unused-parameter \
-Wno-error=unused-variable
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2 changes: 1 addition & 1 deletion examples/dual/host_hid_to_device_cdc/Makefile
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Expand Up @@ -8,7 +8,7 @@ INC += \
EXAMPLE_SOURCE += $(wildcard src/*.c)
SRC_C += $(addprefix $(EXAMPLE_PATH)/, $(EXAMPLE_SOURCE))

CFLAGS_GCC += -Wno-error=cast-align -Wno-error=null-dereference
CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference

SRC_C += \
src/class/hid/hid_host.c \
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2 changes: 1 addition & 1 deletion examples/dual/host_info_to_device_cdc/Makefile
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Expand Up @@ -8,7 +8,7 @@ INC += \
EXAMPLE_SOURCE += $(wildcard src/*.c)
SRC_C += $(addprefix $(EXAMPLE_PATH)/, $(EXAMPLE_SOURCE))

CFLAGS_GCC += -Wno-error=cast-align -Wno-error=null-dereference
CFLAGS += -Wno-error=cast-align -Wno-error=null-dereference

SRC_C += \
src/host/hub.c \
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2 changes: 1 addition & 1 deletion examples/host/msc_file_explorer/Makefile
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Expand Up @@ -21,6 +21,6 @@ SRC_C += \
$(FATFS_PATH)/ffunicode.c \

# suppress warning caused by fatfs
CFLAGS_GCC += -Wno-error=cast-qual
CFLAGS += -Wno-error=cast-qual

include ../../../hw/bsp/family_rules.mk
2 changes: 1 addition & 1 deletion examples/host/msc_file_explorer/src/msc_app.c
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Expand Up @@ -260,7 +260,7 @@
return RES_OK;

case GET_SECTOR_COUNT:
*((DWORD *)buff) = (WORD)tuh_msc_get_block_count(dev_addr, lun);
*((DWORD *)buff) = (DWORD)tuh_msc_get_block_count(dev_addr, lun);

Check warning on line 263 in examples/host/msc_file_explorer/src/msc_app.c

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SonarQubeCloud / SonarCloud Code Analysis

Remove this redundant cast. 


See more on https://sonarcloud.io/project/issues?id=hathach_tinyusb&issues=AZ0Goc8F4fUXOCXg601n&open=AZ0Goc8F4fUXOCXg601n&pullRequest=3563
return RES_OK;

case GET_SECTOR_SIZE:
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