From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/arm/boot/compressed/debug.S | 48 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 arch/arm/boot/compressed/debug.S (limited to 'arch/arm/boot/compressed/debug.S') diff --git a/arch/arm/boot/compressed/debug.S b/arch/arm/boot/compressed/debug.S new file mode 100644 index 000000000..fac40a717 --- /dev/null +++ b/arch/arm/boot/compressed/debug.S @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include + +#ifndef CONFIG_DEBUG_SEMIHOSTING + +#include CONFIG_DEBUG_LL_INCLUDE + +ENTRY(putc) + addruart r1, r2, r3 +#ifdef CONFIG_DEBUG_UART_FLOW_CONTROL + waituartcts r3, r1 +#endif + waituarttxrdy r3, r1 + senduart r0, r1 + busyuart r3, r1 + mov pc, lr +ENDPROC(putc) + +#else + +ENTRY(putc) + adr r1, 1f + ldmia r1, {r2, r3} + add r2, r2, r1 + ldr r1, [r2, r3] + strb r0, [r1] + mov r0, #0x03 @ SYS_WRITEC + ARM( svc #0x123456 ) +#ifdef CONFIG_CPU_V7M + THUMB( bkpt #0xab ) +#else + THUMB( svc #0xab ) +#endif + mov pc, lr + .align 2 +1: .word _GLOBAL_OFFSET_TABLE_ - . + .word semi_writec_buf(GOT) +ENDPROC(putc) + + .bss + .global semi_writec_buf + .type semi_writec_buf, %object +semi_writec_buf: + .space 4 + .size semi_writec_buf, 4 + +#endif -- cgit v1.2.3