It is possible to enable CONFIG_SEMIHOSTING for STM32F429 target, but it
would result in compile error. This patch adds support for semihosting for
STM32F429 or any other ARMv7M target. Tested on STM32F429-DISCOVERY board.
Signed-off-by: Vadzim Dambrouski <pftb...@gmail.com>
---
arch/arm/lib/semihosting.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/lib/semihosting.c b/arch/arm/lib/semihosting.c
index c3e964e..ed5e8e4 100644
--- a/arch/arm/lib/semihosting.c
+++ b/arch/arm/lib/semihosting.c
@@ -31,6 +31,8 @@ static noinline long smh_trap(unsigned int sysnum, void *addr)
register long result asm("r0");
#if defined(CONFIG_ARM64)
asm volatile ("hlt #0xf000" : "=r" (result) : "0"(sysnum), "r"(addr));
+#elif defined(CONFIG_CPU_V7M)
+ asm volatile ("bkpt #0xAB" : "=r" (result) : "0"(sysnum), "r"(addr));
#else
/* Note - untested placeholder */
asm volatile ("svc #0x123456" : "=r" (result) : "0"(sysnum), "r"(addr));
--
2.6.1
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