From: Angus Gratton <angus@espressif.com>
Date: Wed, 12 Jul 2017 05:04:07 +0000 (+0800)
Subject: ld: Remove unused .data sections at link time
X-Git-Tag: v3.1-dev~466^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=187b5fb88879b514e95f57fac092987a6f9e36a3;p=esp-idf

ld: Remove unused .data sections at link time

Reduces static RAM, code size.
---

diff --git a/components/esp32/ld/esp32.common.ld b/components/esp32/ld/esp32.common.ld
index 475b2b2bfd..07ae41c6b9 100644
--- a/components/esp32/ld/esp32.common.ld
+++ b/components/esp32/ld/esp32.common.ld
@@ -99,17 +99,17 @@ SECTIONS
   .dram0.data :
   {
     _data_start = ABSOLUTE(.);
-    KEEP(*(.data))
-    KEEP(*(.data.*))
-    KEEP(*(.gnu.linkonce.d.*))
-    KEEP(*(.data1))
-    KEEP(*(.sdata))
-    KEEP(*(.sdata.*))
-    KEEP(*(.gnu.linkonce.s.*))
-    KEEP(*(.sdata2))
-    KEEP(*(.sdata2.*))
-    KEEP(*(.gnu.linkonce.s2.*))
-    KEEP(*(.jcr))
+    *(.data)
+    *(.data.*)
+    *(.gnu.linkonce.d.*)
+    *(.data1)
+    *(.sdata)
+    *(.sdata.*)
+    *(.gnu.linkonce.s.*)
+    *(.sdata2)
+    *(.sdata2.*)
+    *(.gnu.linkonce.s2.*)
+    *(.jcr)
     *(.dram1 .dram1.*)
     *libesp32.a:panic.o(.rodata .rodata.*)
     *libphy.a:(.rodata .rodata.*)