From 56d0dfdc7a6590d13c878c4f33f90d77fd554bd0 Mon Sep 17 00:00:00 2001
From: Ian Martin <martini@alum.mit.edu>
Date: Wed, 2 Apr 2014 18:17:49 -0400
Subject: [PATCH 1/2] CC2538: Add a Makefile rule to generate a final assembly
 listing.

---
 cpu/cc2538/Makefile.cc2538 | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cpu/cc2538/Makefile.cc2538 b/cpu/cc2538/Makefile.cc2538
index bc39b6e3e..2294354c4 100644
--- a/cpu/cc2538/Makefile.cc2538
+++ b/cpu/cc2538/Makefile.cc2538
@@ -3,6 +3,7 @@ CPP     = arm-none-eabi-cpp
 LD      = arm-none-eabi-gcc
 AR      = arm-none-eabi-ar
 OBJCOPY = arm-none-eabi-objcopy
+OBJDUMP = arm-none-eabi-objdump
 NM      = arm-none-eabi-nm
 
 ifndef SOURCE_LDSCRIPT
@@ -19,6 +20,7 @@ LDFLAGS += -T $(LDSCRIPT)
 LDFLAGS += -Wl,--gc-sections,--sort-section=alignment
 LDFLAGS += -Wl,-Map=$(@:.elf=-$(TARGET).map),--cref,--no-warn-mismatch
 OBJCOPY_FLAGS += -O binary --gap-fill 0xff
+OBJDUMP_FLAGS += --disassemble --source --disassembler-options=force-thumb
 
 ### Are we building with code size optimisations?
 ifeq ($(SMALL),1)
@@ -82,6 +84,9 @@ CUSTOM_RULE_LINK=1
 %.bin: %.elf
 	$(OBJCOPY) $(OBJCOPY_FLAGS) $< $@
 
+%.lst: %.elf
+	$(OBJDUMP) $(OBJDUMP_FLAGS) $< > $@
+
 ### We don't really need the .hex and .bin for the .$(TARGET) but let's make
 ### sure they get built
 %.$(TARGET): %.elf %.hex %.bin

From 23a3a7f004c343c18b1a38a9dac790259f225965 Mon Sep 17 00:00:00 2001
From: Ian Martin <ian@locicontrols.com>
Date: Wed, 16 Apr 2014 10:47:01 -0400
Subject: [PATCH 2/2] Add a note about "make cc2538-demo.lst" to the platform
 README.

---
 platform/cc2538dk/README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/platform/cc2538dk/README.md b/platform/cc2538dk/README.md
index 04941fddd..786ea928f 100644
--- a/platform/cc2538dk/README.md
+++ b/platform/cc2538dk/README.md
@@ -244,6 +244,8 @@ If you want to upload the compiled firmware to a node via the serial boot loader
 
 For the `cc2538-demo`, the comments at the top of `cc2538-demo.c` describe in detail what the example does.
 
+To generate an assembly listing of the compiled firmware, run `make cc2538-demo.lst`. This may be useful for debugging or optimizing your application code. To intersperse the C source code within the assembly listing, you must instruct the compiler to include debugging information by adding `CFLAGS += -g` to the project Makefile and rebuild by running `make clean cc2538-demo.lst`.
+
 Node IEEE/RIME/IPv6 Addresses
 -----------------------------