From b782dcb2b363974da249c94adedd95d218d89bef Mon Sep 17 00:00:00 2001 From: Srinath Parvathaneni Date: Fri, 3 Mar 2023 12:45:40 +0000 Subject: arm: Fix the SP used in setting stack limit for standalone application. Move the instruction that saves SP before the mode check so that applications that start in USER mode correctly set the stack limit. --- libgloss/arm/crt0.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'libgloss/arm') diff --git a/libgloss/arm/crt0.S b/libgloss/arm/crt0.S index 78515180b..79ae1e251 100644 --- a/libgloss/arm/crt0.S +++ b/libgloss/arm/crt0.S @@ -149,13 +149,12 @@ #if (__ARM_ARCH_PROFILE != 'M') /* Following code is compatible for both ARM and Thumb ISA. */ mrs r4, CPSR + mov r3, sp /* Save input SP value. */ /* Test mode bits - in User of all are 0. */ tst r4, #(CPSR_M_MASK) /* "eq" means r4 AND #0x0F is 0. */ beq .Lskip_cpu_modes - mov r3, sp /* Save input SP value. */ - /* FIQ mode, interrupts disabled. */ mov r1, #(CPSR_M_FIQ|CPSR_M_32BIT|CPSR_I_MASK|CPSR_F_MASK) msr CPSR_c, r1 -- cgit v1.2.3