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firmware: do not allow undefined symbols

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For some reason undefined symbols were downgraded to warnings, which
means building a firmware that calls missing functions  (= address zero)
was perfectly fine, which of course made development more exciting....

This applies to builtins, too, printf of one char gets downgraded to
putchar, which we don't have, so disable builtins.

Change-Id: I492f41ad4162b9d07b1881ae4aed019db2dff8b5
This commit is contained in:
Eric Wild
2020-04-03 21:33:30 +02:00
parent 70bd983e56
commit b59fb8fc92
3 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
firmware/Makefile
View File

@@ -100,7 +100,7 @@ C_LIBUSB = USBDescriptors.c USBRequests.c USBD.c USBDCallbacks.c USBDDriver.
C_LIBUSB_RT = dfu.c dfu_runtime.c
C_LIBUSB_DFU = dfu.c dfu_desc.c dfu_driver.c
C_LIBCOMMON = string.c stdio.c fputs.c usb_buf.c ringbuffer.c pseudo_talloc.c host_communication.c \
main_common.c
main_common.c tc_etu.c
C_BOARD = $(notdir $(wildcard libboard/common/source/*.c))
C_BOARD += $(notdir $(wildcard libboard/$(BOARD)/source/*.c))
@@ -164,14 +164,14 @@ CFLAGS += -Wno-suggest-attribute=noreturn
# -mlong-calls -Wall
#CFLAGS += -save-temps -fverbose-asm
#CFLAGS += -Wa,-a,-ad
CFLAGS += -D__ARM
CFLAGS += -D__ARM -fno-builtin
CFLAGS += --param max-inline-insns-single=500 -mcpu=cortex-m3 -mthumb # -mfix-cortex-m3-ldrd
CFLAGS += -ffunction-sections -g $(OPTIMIZATION) $(INCLUDES) -D$(CHIP) -DTRACE_LEVEL=$(TRACE_LEVEL) -DALLOW_PEER_ERASE=$(ALLOW_PEER_ERASE)
CFLAGS += -DGIT_VERSION=\"$(GIT_VERSION)\"
CFLAGS += -DBOARD=\"$(BOARD)\" -DBOARD_$(BOARD)
CFLAGS += -DAPPLICATION=\"$(APP)\" -DAPPLICATION_$(APP)
ASFLAGS = -mcpu=cortex-m3 -mthumb -Wall -g $(OPTIMIZATION) $(INCLUDES) -D$(CHIP) -D__ASSEMBLY__
LDFLAGS = -mcpu=cortex-m3 -mthumb -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--entry=ResetException -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--warn-unresolved-symbols -Wl,--print-memory-usage $(LIB)
LDFLAGS = -mcpu=cortex-m3 -mthumb -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--entry=ResetException -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--print-memory-usage -Wl,--no-undefined $(LIB)
#LD_OPTIONAL=-Wl,--print-gc-sections -Wl,--stats
# Append BIN directories to output filename

2
firmware/apps/cardem/Makefile
View File

@@ -1,3 +1,3 @@
C_FILES += $(C_LIBUSB_RT)
C_FILES += card_emu.c iso7816_3.c iso7816_4.c mode_cardemu.c simtrace_iso7816.c usb.c
C_FILES += card_emu.c iso7816_fidi.c iso7816_3.c iso7816_4.c mode_cardemu.c simtrace_iso7816.c usb.c

5
firmware/libboard/common/source/board_lowlevel.c
View File

@@ -218,3 +218,8 @@ void mdelay(unsigned int msecs)
do {
} while ((jiffies - jiffies_start) < msecs);
}
void abort() {
NVIC_SystemReset();
while(1) {};
}