[nrf fromlist] tests: arch: common: interrupt: Add missing volatile keyword

nordic-krch · nordic-krch · commit f5ad8754baae · 2026-05-14T10:34:45.000+02:00
Variables that were set in the interrupt context were missing
volatile keyword and test was failing on some targets when LTO
was enabled (could also failed without LTO).

Signed-off-by: Krzysztof Chruściński &lt;krzysztof.chruscinski@nordicsemi.no&gt;

Upstream PR #: 109119
diff --git a/tests/arch/common/interrupt/src/nested_irq.c b/tests/arch/common/interrupt/src/nested_irq.c
@@ -98,8 +98,8 @@
 static uint32_t irq_line_0;
 static uint32_t irq_line_1;
 
-static uint32_t isr0_result;
-static uint32_t isr1_result;
+static volatile uint32_t isr0_result;
+static volatile uint32_t isr1_result;
 
 void isr1(const void *param)
 {
diff --git a/tests/arch/common/interrupt/src/test_shared_irq.h b/tests/arch/common/interrupt/src/test_shared_irq.h
@@ -29,7 +29,7 @@ static inline void name(const void *data)		\
 	test_vector[idx] = result_vector[idx];		\
 }							\
 
-static uint32_t test_vector[TEST_VECTOR_SIZE] = {
+static volatile uint32_t test_vector[TEST_VECTOR_SIZE] = {
 };
 
 static uint32_t result_vector[TEST_VECTOR_SIZE] = {

Original file line number	Diff line number	Diff line change
`@@ -98,8 +98,8 @@`
`98`	`98`	`static uint32_t irq_line_0;`
`99`	`99`	`static uint32_t irq_line_1;`
`100`	`100`
`101`		`-static uint32_t isr0_result;`
`102`		`-static uint32_t isr1_result;`
	`101`	`+static volatile uint32_t isr0_result;`
	`102`	`+static volatile uint32_t isr1_result;`
`103`	`103`
`104`	`104`	`void isr1(const void *param)`
`105`	`105`	`{`