From a3a3654584a27e1cacf6b086dca7cff5f70e307c Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Tue, 27 Mar 2018 05:06:56 -0700
Subject: [PATCH] Add linker MAP artifact to standard build process (#4186)

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 e27c30db05..c18b388f13 100644
--- a/platform.txt
+++ b/platform.txt
@@ -89,7 +89,7 @@ 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=