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linux-sg2042/arch/cris/arch-v32/kernel/kgdb_asm.S

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
[PATCH] CRIS update: new subarchitecture v32 New CRIS sub architecture named v32. From: Dave Jones <davej@redhat.com> Fix swapped kmalloc args Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-28 02:44:44 +08:00
/*
* Copyright (C) 2004 Axis Communications AB
*
* Code for handling break 8, hardware breakpoint, single step, and serial
* port exceptions for kernel debugging purposes.
*/
CRIS: v32: Correct path for intr_vect.h Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-03 20:17:20 +08:00
#include <hwregs/intr_vect.h>
[PATCH] CRIS update: new subarchitecture v32 New CRIS sub architecture named v32. From: Dave Jones <davej@redhat.com> Fix swapped kmalloc args Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-28 02:44:44 +08:00
;; Exported functions.
.globl kgdb_handle_exception
kgdb_handle_exception:
;; Create a register image of the caller.
;;
;; First of all, save the ACR on the stack since we need it for address calculations.
;; We put it into the register struct later.
subq 4, $sp
move.d $acr, [$sp]
;; Now we are free to use ACR all we want.
;; If we were running this handler with interrupts on, we would have to be careful
;; to save and restore CCS manually, but since we aren't we treat it like every other
;; register.
move.d reg, $acr
move.d $r0, [$acr] ; Save R0 (start of register struct)
addq 4, $acr
move.d $r1, [$acr] ; Save R1
addq 4, $acr
move.d $r2, [$acr] ; Save R2
addq 4, $acr
move.d $r3, [$acr] ; Save R3
addq 4, $acr
move.d $r4, [$acr] ; Save R4
addq 4, $acr
move.d $r5, [$acr] ; Save R5
addq 4, $acr
move.d $r6, [$acr] ; Save R6
addq 4, $acr
move.d $r7, [$acr] ; Save R7
addq 4, $acr
move.d $r8, [$acr] ; Save R8
addq 4, $acr
move.d $r9, [$acr] ; Save R9
addq 4, $acr
move.d $r10, [$acr] ; Save R10
addq 4, $acr
move.d $r11, [$acr] ; Save R11
addq 4, $acr
move.d $r12, [$acr] ; Save R12
addq 4, $acr
move.d $r13, [$acr] ; Save R13
addq 4, $acr
move.d $sp, [$acr] ; Save SP (R14)
addq 4, $acr
;; The ACR register is already saved on the stack, so pop it from there.
move.d [$sp],$r0
move.d $r0, [$acr]
addq 4, $acr
move $bz, [$acr]
addq 1, $acr
move $vr, [$acr]
addq 1, $acr
move $pid, [$acr]
addq 4, $acr
move $srs, [$acr]
addq 1, $acr
move $wz, [$acr]
addq 2, $acr
move $exs, [$acr]
addq 4, $acr
move $eda, [$acr]
addq 4, $acr
move $mof, [$acr]
addq 4, $acr
move $dz, [$acr]
addq 4, $acr
move $ebp, [$acr]
addq 4, $acr
move $erp, [$acr]
addq 4, $acr
move $srp, [$acr]
addq 4, $acr
move $nrp, [$acr]
addq 4, $acr
move $ccs, [$acr]
addq 4, $acr
move $usp, [$acr]
addq 4, $acr
move $spc, [$acr]
addq 4, $acr
;; Skip the pseudo-PC.
addq 4, $acr
;; Save the support registers in bank 0 - 3.
clear.d $r1 ; Bank counter
move.d sreg, $acr
;; Bank 0
move $r1, $srs
nop
nop
nop
move $s0, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s1, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s2, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s3, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s4, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s5, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s6, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s7, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s8, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s9, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s10, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s11, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s12, $r0
move.d $r0, [$acr]
addq 4, $acr
;; Nothing in S13 - S15, bank 0
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
;; Bank 1 and bank 2 have the same layout, hence the loop.
addq 1, $r1
1:
move $r1, $srs
nop
nop
nop
move $s0, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s1, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s2, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s3, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s4, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s5, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s6, $r0
move.d $r0, [$acr]
addq 4, $acr
;; Nothing in S7 - S15, bank 1 and 2
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
clear.d [$acr]
addq 4, $acr
addq 1, $r1
cmpq 3, $r1
bne 1b
nop
;; Bank 3
move $r1, $srs
nop
nop
nop
move $s0, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s1, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s2, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s3, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s4, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s5, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s6, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s7, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s8, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s9, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s10, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s11, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s12, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s13, $r0
move.d $r0, [$acr]
addq 4, $acr
move $s14, $r0
move.d $r0, [$acr]
addq 4, $acr
;; Nothing in S15, bank 3
clear.d [$acr]
addq 4, $acr
;; Check what got us here: get IDX field of EXS.
move $exs, $r10
and.d 0xff00, $r10
lsrq 8, $r10
#if defined(CONFIG_ETRAX_KGDB_PORT0)
cmp.d SER0_INTR_VECT, $r10 ; IRQ for serial port 0
beq sigint
nop
#elif defined(CONFIG_ETRAX_KGDB_PORT1)
cmp.d SER1_INTR_VECT, $r10 ; IRQ for serial port 1
beq sigint
nop
#elif defined(CONFIG_ETRAX_KGDB_PORT2)
cmp.d SER2_INTR_VECT, $r10 ; IRQ for serial port 2
beq sigint
nop
#elif defined(CONFIG_ETRAX_KGDB_PORT3)
cmp.d SER3_INTR_VECT, $r10 ; IRQ for serial port 3
beq sigint
nop
#endif
;; Multiple interrupt must be due to serial break.
cmp.d 0x30, $r10 ; Multiple interrupt
beq sigint
nop
;; Neither of those? Then it's a sigtrap.
ba handle_comm
moveq 5, $r10 ; Set SIGTRAP (delay slot)
sigint:
;; Serial interrupt; get character
jsr getDebugChar
nop ; Delay slot
cmp.b 3, $r10 ; \003 (Ctrl-C)?
bne return ; No, get out of here
nop
moveq 2, $r10 ; Set SIGINT
;;
;; Handle the communication
;;
handle_comm:
move.d internal_stack+1020, $sp ; Use the internal stack which grows upwards
jsr handle_exception ; Interactive routine
nop
;;
;; Return to the caller
;;
return:
;; First of all, write the support registers.
clear.d $r1 ; Bank counter
move.d sreg, $acr
;; Bank 0
move $r1, $srs
nop
nop
nop
move.d [$acr], $r0
move $r0, $s0
addq 4, $acr
move.d [$acr], $r0
move $r0, $s1
addq 4, $acr
move.d [$acr], $r0
move $r0, $s2
addq 4, $acr
move.d [$acr], $r0
move $r0, $s3
addq 4, $acr
move.d [$acr], $r0
move $r0, $s4
addq 4, $acr
move.d [$acr], $r0
move $r0, $s5
addq 4, $acr
;; Nothing in S6 - S7, bank 0.
addq 4, $acr
addq 4, $acr
move.d [$acr], $r0
move $r0, $s8
addq 4, $acr
move.d [$acr], $r0
move $r0, $s9
addq 4, $acr
move.d [$acr], $r0
move $r0, $s10
addq 4, $acr
move.d [$acr], $r0
move $r0, $s11
addq 4, $acr
move.d [$acr], $r0
move $r0, $s12
addq 4, $acr
;; Nothing in S13 - S15, bank 0
addq 4, $acr
addq 4, $acr
addq 4, $acr
;; Bank 1 and bank 2 have the same layout, hence the loop.
addq 1, $r1
2:
move $r1, $srs
nop
nop
nop
move.d [$acr], $r0
move $r0, $s0
addq 4, $acr
move.d [$acr], $r0
move $r0, $s1
addq 4, $acr
move.d [$acr], $r0
move $r0, $s2
addq 4, $acr
;; S3 (MM_CAUSE) is read-only.
addq 4, $acr
move.d [$acr], $r0
move $r0, $s4
addq 4, $acr
;; FIXME: Actually write S5/S6? (Affects MM_CAUSE.)
addq 4, $acr
addq 4, $acr
;; Nothing in S7 - S15, bank 1 and 2
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 4, $acr
addq 1, $r1
cmpq 3, $r1
bne 2b
nop
;; Bank 3
move $r1, $srs
nop
nop
nop
move.d [$acr], $r0
move $r0, $s0
addq 4, $acr
move.d [$acr], $r0
move $r0, $s1
addq 4, $acr
move.d [$acr], $r0
move $r0, $s2
addq 4, $acr
move.d [$acr], $r0
move $r0, $s3
addq 4, $acr
move.d [$acr], $r0
move $r0, $s4
addq 4, $acr
move.d [$acr], $r0
move $r0, $s5
addq 4, $acr
move.d [$acr], $r0
move $r0, $s6
addq 4, $acr
move.d [$acr], $r0
move $r0, $s7
addq 4, $acr
move.d [$acr], $r0
move $r0, $s8
addq 4, $acr
move.d [$acr], $r0
move $r0, $s9
addq 4, $acr
move.d [$acr], $r0
move $r0, $s10
addq 4, $acr
move.d [$acr], $r0
move $r0, $s11
addq 4, $acr
move.d [$acr], $r0
move $r0, $s12
addq 4, $acr
move.d [$acr], $r0
move $r0, $s13
addq 4, $acr
move.d [$acr], $r0
move $r0, $s14
addq 4, $acr
;; Nothing in S15, bank 3
addq 4, $acr
;; Now, move on to the regular register restoration process.
move.d reg, $acr ; Reset ACR to point at the beginning of the register image
move.d [$acr], $r0 ; Restore R0
addq 4, $acr
move.d [$acr], $r1 ; Restore R1
addq 4, $acr
move.d [$acr], $r2 ; Restore R2
addq 4, $acr
move.d [$acr], $r3 ; Restore R3
addq 4, $acr
move.d [$acr], $r4 ; Restore R4
addq 4, $acr
move.d [$acr], $r5 ; Restore R5
addq 4, $acr
move.d [$acr], $r6 ; Restore R6
addq 4, $acr
move.d [$acr], $r7 ; Restore R7
addq 4, $acr
move.d [$acr], $r8 ; Restore R8
addq 4, $acr
move.d [$acr], $r9 ; Restore R9
addq 4, $acr
move.d [$acr], $r10 ; Restore R10
addq 4, $acr
move.d [$acr], $r11 ; Restore R11
addq 4, $acr
move.d [$acr], $r12 ; Restore R12
addq 4, $acr
move.d [$acr], $r13 ; Restore R13
;;
;; We restore all registers, even though some of them probably haven't changed.
;;
addq 4, $acr
move.d [$acr], $sp ; Restore SP (R14)
;; ACR cannot be restored just yet.
addq 8, $acr
;; Skip BZ, VR.
addq 2, $acr
move [$acr], $pid ; Restore PID
addq 4, $acr
move [$acr], $srs ; Restore SRS
nop
nop
nop
addq 1, $acr
;; Skip WZ.
addq 2, $acr
move [$acr], $exs ; Restore EXS.
addq 4, $acr
move [$acr], $eda ; Restore EDA.
addq 4, $acr
move [$acr], $mof ; Restore MOF.
;; Skip DZ.
addq 8, $acr
move [$acr], $ebp ; Restore EBP.
addq 4, $acr
move [$acr], $erp ; Restore ERP.
addq 4, $acr
move [$acr], $srp ; Restore SRP.
addq 4, $acr
move [$acr], $nrp ; Restore NRP.
addq 4, $acr
move [$acr], $ccs ; Restore CCS like an ordinary register.
addq 4, $acr
move [$acr], $usp ; Restore USP
addq 4, $acr
move [$acr], $spc ; Restore SPC
; No restoration of pseudo-PC of course.
move.d reg, $acr ; Reset ACR to point at the beginning of the register image
add.d 15*4, $acr
move.d [$acr], $acr ; Finally, restore ACR.
rete ; Same as jump ERP
rfe ; Shifts CCS