Commit d0c1db1d authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'nds32-for-linus-4.19-tag1' of... 

Merge tag 'nds32-for-linus-4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux

Pull nds32 updates from Greentime Hu:
 "Contained in here are the bug fixes, building error fixes and ftrace
  support for nds32"

* tag 'nds32-for-linus-4.19-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
  nds32: linker script: GCOV kernel may refers data in __exit
  nds32: fix build error because of wrong semicolon
  nds32: Fix a kernel panic issue because of wrong frame pointer access.
  nds32: Only print one page of stack when die to prevent printing too much information.
  nds32: Add macro definition for offset of lp register on stack
  nds32: Remove the deprecated ABI implementation
  nds32/stack: Get real return address by using ftrace_graph_ret_addr
  nds32/ftrace: Support dynamic function graph tracer
  nds32/ftrace: Support dynamic function tracer
  nds32/ftrace: Add RECORD_MCOUNT support
  nds32/ftrace: Support static function graph tracer
  nds32/ftrace: Support static function tracer
  nds32: Extract the checking and getting pointer to a macro
  nds32: Clean up the coding style
  nds32: Fix get_user/put_user macro expand pointer problem
  nds32: Fix empty call trace
  nds32: add NULL entry to the end of_device_id array
  nds32: fix logic for module
parents 0e9b1039 3350139c

arch/nds32/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -40,6 +40,10 @@ config NDS32 
	select NO_IOPORT_MAP

	select RTC_LIB

	select THREAD_INFO_IN_TASK

	select HAVE_FUNCTION_TRACER

	select HAVE_FUNCTION_GRAPH_TRACER

	select HAVE_FTRACE_MCOUNT_RECORD

	select HAVE_DYNAMIC_FTRACE

	help

	  Andes(nds32) Linux support.

arch/nds32/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -5,6 +5,10 @@ KBUILD_DEFCONFIG := defconfig 


comma = ,



ifdef CONFIG_FUNCTION_TRACER

arch-y += -malways-save-lp -mno-relax

endif



KBUILD_CFLAGS	+= $(call cc-option, -mno-sched-prolog-epilog)

KBUILD_CFLAGS	+= -mcmodel=large

arch/nds32/include/asm/elf.h

+2 −2
Original line number Diff line number Diff line
@@ -121,9 +121,9 @@ struct elf32_hdr; 
 */

#define ELF_CLASS	ELFCLASS32

#ifdef __NDS32_EB__

#define ELF_DATA	ELFDATA2MSB;

#define ELF_DATA	ELFDATA2MSB

#else

#define ELF_DATA	ELFDATA2LSB;

#define ELF_DATA	ELFDATA2LSB

#endif

#define ELF_ARCH	EM_NDS32

#define USE_ELF_CORE_DUMP

arch/nds32/include/asm/ftrace.h

0 → 100644
+46 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */



#ifndef __ASM_NDS32_FTRACE_H

#define __ASM_NDS32_FTRACE_H



#ifdef CONFIG_FUNCTION_TRACER



#define HAVE_FUNCTION_GRAPH_FP_TEST



#define MCOUNT_ADDR ((unsigned long)(_mcount))

/* mcount call is composed of three instructions:

 * sethi + ori + jral

 */

#define MCOUNT_INSN_SIZE 12



extern void _mcount(unsigned long parent_ip);



#ifdef CONFIG_DYNAMIC_FTRACE



#define FTRACE_ADDR ((unsigned long)_ftrace_caller)



#ifdef __NDS32_EL__

#define INSN_NOP		0x09000040

#define INSN_SIZE(insn)		(((insn & 0x00000080) == 0) ? 4 : 2)

#define IS_SETHI(insn)		((insn & 0x000000fe) == 0x00000046)

#define ENDIAN_CONVERT(insn)	be32_to_cpu(insn)

#else /* __NDS32_EB__ */

#define INSN_NOP		0x40000009

#define INSN_SIZE(insn)		(((insn & 0x80000000) == 0) ? 4 : 2)

#define IS_SETHI(insn)		((insn & 0xfe000000) == 0x46000000)

#define ENDIAN_CONVERT(insn)	(insn)

#endif



extern void _ftrace_caller(unsigned long parent_ip);

static inline unsigned long ftrace_call_adjust(unsigned long addr)

{

	return addr;

}

struct dyn_arch_ftrace {

};



#endif /* CONFIG_DYNAMIC_FTRACE */



#endif /* CONFIG_FUNCTION_TRACER */



#endif /* __ASM_NDS32_FTRACE_H */

arch/nds32/include/asm/nds32.h

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#else

#define FP_OFFSET (-2)

#endif

#define LP_OFFSET (-1)



extern void __init early_trap_init(void);

static inline void GIE_ENABLE(void)

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