git subrepo clone https://github.com/libopencm3/libopencm3

subrepo:
  subdir:   "libopencm3"
  merged:   "f5813a54"
upstream:
  origin:   "https://github.com/libopencm3/libopencm3"
  branch:   "master"
  commit:   "f5813a54"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"

libopencm3/.gitignore

@@ -0,0 +1,68 @@
+*.d
+*.o
+*.bin
+*.hex
+*.list
+*.srec
+*.a
+*.elf
+lib/*.ld
+# (except this one!)
+!lib/cortex-m-generic.ld
+*.stylecheck
+*.swp
+\#*
+.\#*
+*~
+*.map
+*.log
+*.pyc
+html/
+latex/
+*.pdf
+*.tag
+.DS_Store
+# These are generated
+include/libopencm3/**/nvic.h
+include/libopencm3/**/**/nvic.h
+# (not these three though...)
+!include/libopencm3/cm3/nvic.h
+!include/libopencm3/dispatch/nvic.h
+!include/libopencm3/lm4f/nvic.h
+lib/**/vector_nvic.c
+lib/**/**/vector_nvic.c
+# (not this one either)
+!lib/dispatch/vector_nvic.c
+DoxygenLayout.xml
+doc/*/Doxyfile
+doc/*/DoxygenLayout_*.xml
+# (annnd, not these two templates either)
+!doc/templates/DoxygenLayout_Device.xml
+!doc/templates/DoxygenLayout_Root.xml
+doc/*/doxy.sourcelist
+include/libopencmsis/efm32/
+include/libopencmsis/gd32/
+include/libopencmsis/lm3s/
+include/libopencmsis/lpc13xx/
+include/libopencmsis/lpc17xx/
+include/libopencmsis/lpc43xx/
+include/libopencmsis/msp432/
+include/libopencmsis/pac55xx/
+include/libopencmsis/sam/
+include/libopencmsis/stm32/
+include/libopencmsis/swm050/
+include/libopencmsis/vf6xx/
+
+# Editor/IDE config files
+nbproject/
+.idea/
+.project
+locm3.sublime-workspace
+.cproject
+.settings
+
+# cscope databases
+cscope.out
+
+# build droppings
+.stamp_failure*