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-rw-r--r--arch/arm26/lib/backtrace.S144
1 files changed, 0 insertions, 144 deletions
diff --git a/arch/arm26/lib/backtrace.S b/arch/arm26/lib/backtrace.S
deleted file mode 100644
index e27feb1e891..00000000000
--- a/arch/arm26/lib/backtrace.S
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * linux/arch/arm26/lib/backtrace.S
- *
- * Copyright (C) 1995, 1996 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/linkage.h>
-#include <asm/assembler.h>
- .text
-
-@ fp is 0 or stack frame
-
-#define frame r4
-#define next r5
-#define save r6
-#define mask r7
-#define offset r8
-
-ENTRY(__backtrace)
- mov r1, #0x10
- mov r0, fp
-
-ENTRY(c_backtrace)
-
-#ifdef CONFIG_NO_FRAME_POINTER
- mov pc, lr
-#else
-
- stmfd sp!, {r4 - r8, lr} @ Save an extra register so we have a location...
- mov mask, #0xfc000003
- tst mask, r0
- movne r0, #0
- movs frame, r0
-1: moveq r0, #-2
- LOADREGS(eqfd, sp!, {r4 - r8, pc})
-
-2: stmfd sp!, {pc} @ calculate offset of PC in STMIA instruction
- ldr r0, [sp], #4
- adr r1, 2b - 4
- sub offset, r0, r1
-
-3: tst frame, mask @ Check for address exceptions...
- bne 1b
-
-1001: ldr next, [frame, #-12] @ get fp
-1002: ldr r2, [frame, #-4] @ get lr
-1003: ldr r3, [frame, #0] @ get pc
- sub save, r3, offset @ Correct PC for prefetching
- bic save, save, mask
-1004: ldr r1, [save, #0] @ get instruction at function
- mov r1, r1, lsr #10
- ldr r3, .Ldsi+4
- teq r1, r3
- subeq save, save, #4
- adr r0, .Lfe
- mov r1, save
- bic r2, r2, mask
- bl printk @ print pc and link register
-
- ldr r0, [frame, #-8] @ get sp
- sub r0, r0, #4
-1005: ldr r1, [save, #4] @ get instruction at function+4
- mov r3, r1, lsr #10
- ldr r2, .Ldsi+4
- teq r3, r2 @ Check for stmia sp!, {args}
- addeq save, save, #4 @ next instruction
- bleq .Ldumpstm
-
- sub r0, frame, #16
-1006: ldr r1, [save, #4] @ Get 'stmia sp!, {rlist, fp, ip, lr, pc}' instruction
- mov r3, r1, lsr #10
- ldr r2, .Ldsi
- teq r3, r2
- bleq .Ldumpstm
-
- teq frame, next
- movne frame, next
- teqne frame, #0
- bne 3b
- LOADREGS(fd, sp!, {r4 - r8, pc})
-
-/*
- * Fixup for LDMDB
- */
- .section .fixup,"ax"
- .align 0
-1007: ldr r0, =.Lbad
- mov r1, frame
- bl printk
- LOADREGS(fd, sp!, {r4 - r8, pc})
- .ltorg
- .previous
-
- .section __ex_table,"a"
- .align 3
- .long 1001b, 1007b
- .long 1002b, 1007b
- .long 1003b, 1007b
- .long 1004b, 1007b
- .long 1005b, 1007b
- .long 1006b, 1007b
- .previous
-
-#define instr r4
-#define reg r5
-#define stack r6
-
-.Ldumpstm: stmfd sp!, {instr, reg, stack, r7, lr}
- mov stack, r0
- mov instr, r1
- mov reg, #9
- mov r7, #0
-1: mov r3, #1
- tst instr, r3, lsl reg
- beq 2f
- add r7, r7, #1
- teq r7, #4
- moveq r7, #0
- moveq r3, #'\n'
- movne r3, #' '
- ldr r2, [stack], #-4
- mov r1, reg
- adr r0, .Lfp
- bl printk
-2: subs reg, reg, #1
- bpl 1b
- teq r7, #0
- adrne r0, .Lcr
- blne printk
- mov r0, stack
- LOADREGS(fd, sp!, {instr, reg, stack, r7, pc})
-
-.Lfe: .asciz "Function entered at [<%p>] from [<%p>]\n"
-.Lfp: .asciz " r%d = %08X%c"
-.Lcr: .asciz "\n"
-.Lbad: .asciz "Backtrace aborted due to bad frame pointer <%p>\n"
- .align
-.Ldsi: .word 0x00e92dd8 >> 2
- .word 0x00e92d00 >> 2
-
-#endif