commit bfe057367d1ac7b8af4ea8f97b4f753457de3205
author Patrick Oppenlander <patrick.oppenlander@gmail.com> Tue Aug 02 20:39:58 2022 +1000
committer GitHub <noreply@github.com> Tue Aug 02 16:09:58 2022 +0530
tree 1ebcd82cce31abf00965069f88697b29393ae3c6
parent c22f40d9a5e239fdfd98bfc210a33c26a627b9f6

add portDONT_DISCARD to pxCurrentTCB (#479)

This fixes link failures with LTO:

/tmp/ccJbaKaD.ltrans0.ltrans.o: in function `pxCurrentTCBConst2':
/root/project/FreeRTOS/portable/GCC/ARM_CM4F/port.c:249: undefined reference to `pxCurrentTCB'
/usr/lib/gcc/arm-none-eabi/11.2.0/../../../../arm-none-eabi/bin/ld: /tmp/ccJbaKaD.ltrans0.ltrans.o: in function `pxCurrentTCBConst':
/root/project/FreeRTOS/portable/GCC/ARM_CM4F/port.c:443: undefined reference to `pxCurrentTCB'

tasks.c

diff --git a/tasks.c b/tasks.c
index 82ad273..e5f397a 100644
--- a/tasks.c
+++ b/tasks.c
@@ -337,7 +337,7 @@
 

 /*lint -save -e956 A manual analysis and inspection has been used to determine

  * which static variables must be declared volatile. */

-PRIVILEGED_DATA TCB_t * volatile pxCurrentTCB = NULL;

+portDONT_DISCARD PRIVILEGED_DATA TCB_t * volatile pxCurrentTCB = NULL;

 

 /* Lists for ready and blocked tasks. --------------------

  * xDelayedTaskList1 and xDelayedTaskList2 could be moved to function scope but