* arm/crt0.S: Initialise __heap_limit when ARM_RDI_MONITOR is defined.

* arm/syscalls.c: define __heap_limit global symbol. * arm/syscalls.c (_sbrk): Honour __heap_limit.
2015-02-17 09:30:52 +00:00
parent 72ba8b107a
commit 8d98f956cc
3 changed files with 17 additions and 1 deletions
--- a/libgloss/arm/crt0.S
+++ b/libgloss/arm/crt0.S
@@ -123,6 +123,11 @@
 #endif
 	ldr	r0, .LC0	/*  point at values read */

+	/* Set __heap_limit.  */
+	ldr     r1, [r0, #4]
+	ldr     r2, =__heap_limit
+	str     r1, [r2]
+
 	ldr     r1, [r0, #0]
 	cmp     r1, #0
 	bne     .LC32