TI TIVA libopencm3 blink example stuck on reset_handler() (?)

Here is the verbose build log:

[Thu May 10 09:58:25 2018] Processing lptm4c1230c3pm (platform: titiva; board: lptm4c1230c3pm; framework: libopencm3)


PLATFORM: TI TIVA > TI LaunchPad (Tiva C) w/ tm4c123 (80MHz)
SYSTEM: LPTM4C1230C3PM 80MHz 32KB RAM (256KB Flash)
DEBUG: CURRENT(ti-icdi) ON-BOARD(ti-icdi)
Library Dependency Finder → Library Dependency Finder (LDF) — PlatformIO latest documentation
LDF MODES: FINDER(chain) COMPATIBILITY(light)
Collected 0 compatible libraries
Framework incompatible library /Users/pugsley/.platformio/lib/HttpClient_ID46
Scanning dependencies…
More details about “Library Compatibility Mode”: Redirecting...
No dependencies
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/src/main.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc src/main.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/gpio.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/lm4f/gpio.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/vector.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/vector.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/assert.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/assert.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/systemcontrol.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/lm4f/systemcontrol.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/rcc.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/lm4f/rcc.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/uart.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/lm4f/uart.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb_lm4f.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/usb/usb_lm4f.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3-I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/usb/usb.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb_control.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/usb/usb_control.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb_standard.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/usb/usb_standard.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/systick.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503-DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/systick.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/scb.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3-I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/scb.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/nvic.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/nvic.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/sync.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3 -I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/sync.c
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/dwt.o -c -std=gnu11 -Os -ffunction-sections -fdata-sections -Wall -mthumb -nostdlib -mcpu=cortex-m4 -DF_CPU=80000000L -DPLATFORMIO=30503 -DENERGIA_ARCH_TIVAC -DENERGIA_EK_TM4C123GXL -DLM4F -I/Users/pugsley/.platformio/packages/framework-libopencm3-I/Users/pugsley/.platformio/packages/framework-libopencm3/include -Isrc /Users/pugsley/.platformio/packages/framework-libopencm3/lib/cm3/dwt.c
arm-none-eabi-ar rc .pioenvs/lptm4c1230c3pm/libFrameworkLibOpenCM3.a .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/gpio.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/vector.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/assert.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/systemcontrol.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/rcc.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/lm4f/uart.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb_lm4f.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb_control.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/usb/usb_standard.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/systick.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/scb.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/nvic.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/sync.o .pioenvs/lptm4c1230c3pm/FrameworkLibOpenCM3/lib/cm3/dwt.o
arm-none-eabi-ranlib .pioenvs/lptm4c1230c3pm/libFrameworkLibOpenCM3.a
arm-none-eabi-gcc -o .pioenvs/lptm4c1230c3pm/firmware.elf -Os -mthumb -nostartfiles -nostdlib -mcpu=cortex-m4 -Wl,-T"/Users/pugsley/.platformio/packages/framework-libopencm3/lib/lm4f/libopencm3_lm4f.ld" .pioenvs/lptm4c1230c3pm/src/main.o -L/Users/pugsley/.platformio/platforms/titiva/ldscripts -L.pioenvs/lptm4c1230c3pm -Wl,–start-group -lc -lgcc -lm .pioenvs/lptm4c1230c3pm/libFrameworkLibOpenCM3.a -Wl,–end-group
arm-none-eabi-size -B -d .pioenvs/lptm4c1230c3pm/firmware.elf
arm-none-eabi-objcopy -O binary .pioenvs/lptm4c1230c3pm/firmware.elf .pioenvs/lptm4c1230c3pm/firmware.bin
text data bss dec hex filename
2836 4 8 2848 b20 .pioenvs/lptm4c1230c3pm/firmware.elf
======================================= [SUCCESS] Took 1.71 seconds =======================================

================================================ [SUMMARY] ================================================
Environment lptm4c1230c3pm [SUCCESS]
Environment lplm4f120h5qr [SKIP]
Environment lptm4c1294ncpdt [SKIP]
======================================= [SUCCESS] Took 1.71 seconds =======================================