From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/arch/arm/lib/backtrace-clang.S | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/kernel/arch/arm/lib/backtrace-clang.S b/kernel/arch/arm/lib/backtrace-clang.S
index 2ff3751..6174c45 100644
--- a/kernel/arch/arm/lib/backtrace-clang.S
+++ b/kernel/arch/arm/lib/backtrace-clang.S
@@ -17,6 +17,7 @@
#define sv_pc r6
#define mask r7
#define sv_lr r8
+#define loglvl r9
ENTRY(c_backtrace)
@@ -99,6 +100,7 @@
@ to ensure 8 byte alignment
movs frame, r0 @ if frame pointer is zero
beq no_frame @ we have no stack frames
+ mov loglvl, r2
tst r1, #0x10 @ 26 or 32-bit mode?
moveq mask, #0xfc000003
movne mask, #0 @ mask for 32-bit
@@ -167,6 +169,7 @@
mov r1, sv_lr
mov r2, frame
bic r1, r1, mask @ mask PC/LR for the mode
+ mov r3, loglvl
bl dump_backtrace_entry
/*
@@ -183,6 +186,7 @@
ldr r0, [frame] @ locals are stored in
@ the preceding frame
subeq r0, r0, #4
+ mov r2, loglvl
bleq dump_backtrace_stm @ dump saved registers
/*
@@ -196,7 +200,8 @@
bhi for_each_frame
1006: adr r0, .Lbad
- mov r1, frame
+ mov r1, loglvl
+ mov r2, frame
bl printk
no_frame: ldmfd sp!, {r4 - r9, fp, pc}
ENDPROC(c_backtrace)
@@ -209,7 +214,7 @@
.long 1005b, 1006b
.popsection
-.Lbad: .asciz "Backtrace aborted due to bad frame pointer <%p>\n"
+.Lbad: .asciz "%sBacktrace aborted due to bad frame pointer <%p>\n"
.align
.Lopcode: .word 0xe92d4800 >> 11 @ stmfd sp!, {... fp, lr}
.word 0x0b000000 @ bl if these bits are set
--
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