From 7c5e73bc2aa79af8552eaa3cac5bd96722c6621e Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Wed, 17 Jan 2018 12:17:10 -0800
Subject: [PATCH] Add linker MAP artifact to standard build process

Generate and preserve a linker .MAP file for the project in the usual
build directory.  This map file is useful for finding out where FLASH,
IROM, and IRAM are being used as it shows gcc internally generated
things such as jump tables and constant function-local variables.
---
 platform.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platform.txt b/platform.txt
index 7b4c74ba53..8763e730af 100644
--- a/platform.txt
+++ b/platform.txt
@@ -86,7 +86,7 @@ recipe.S.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.cpreprocessor.fla
 recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" {compiler.ar.flags} {compiler.ar.extra_flags} "{build.path}/arduino.ar" "{object_file}"
 
 ## Combine gc-sections, archives, and objects
-recipe.c.combine.pattern="{compiler.path}{compiler.c.elf.cmd}" {compiler.c.elf.flags} {compiler.c.elf.extra_flags} -o "{build.path}/{build.project_name}.elf" -Wl,--start-group {object_files} "{build.path}/arduino.ar" {compiler.c.elf.libs} -Wl,--end-group  "-L{build.path}"
+recipe.c.combine.pattern="{compiler.path}{compiler.c.elf.cmd}" -Wl,-Map "-Wl,{build.path}/{build.project_name}.map" {compiler.c.elf.flags} {compiler.c.elf.extra_flags} -o "{build.path}/{build.project_name}.elf" -Wl,--start-group {object_files} "{build.path}/arduino.ar" {compiler.c.elf.libs} -Wl,--end-group  "-L{build.path}"
 
 ## Create eeprom
 recipe.objcopy.eep.pattern=