Merge pull request #338 from rlcamp/ltofix

hathach · web-flow · commit 781252659064 · 2022-11-15T09:02:35.000+07:00
Prevent LTO from omitting the ISR vector table
diff --git a/cores/arduino/cortex_handlers.c b/cores/arduino/cortex_handlers.c
@@ -196,6 +196,7 @@ extern uint32_t __bss_end__;
 extern uint32_t __StackTop;
 
 /* Exception Table */
+__attribute__ ((used))
 __attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =
 {
 	/* Configure Initial Stack Pointer, using linker-generated symbols */
@@ -407,6 +408,7 @@ extern uint32_t __bss_end__;
 extern uint32_t __StackTop;
 
 /* Exception Table */
+__attribute__ ((used))
 __attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =
 {
   /* Configure Initial Stack Pointer, using linker-generated symbols */

Original file line number	Diff line number	Diff line change
`@@ -196,6 +196,7 @@ extern uint32_t __bss_end__;`
`196`	`196`	`extern uint32_t __StackTop;`
`197`	`197`
`198`	`198`	`/* Exception Table */`
	`199`	`+__attribute__ ((used))`
`199`	`200`	`__attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =`
`200`	`201`	`{`
`201`	`202`	`/* Configure Initial Stack Pointer, using linker-generated symbols */`
`@@ -407,6 +408,7 @@ extern uint32_t __bss_end__;`
`407`	`408`	`extern uint32_t __StackTop;`
`408`	`409`
`409`	`410`	`/* Exception Table */`
	`411`	`+__attribute__ ((used))`
`410`	`412`	`__attribute__ ((section(".isr_vector"))) const DeviceVectors exception_table =`
`411`	`413`	`{`
`412`	`414`	`/* Configure Initial Stack Pointer, using linker-generated symbols */`