Merge tag 'csky-for-linus-5.2-perf-unwind-libdw' of git://github.com/c-sky/csky-linux

Pull arch/csky perf update from Guo Ren: "Add support for perf unwind-libdw" * tag 'csky-for-linus-5.2-perf-unwind-libdw' of git://github.com/c-sky/csky-linux: csky: Add support for perf unwind-libdw
author: Linus Torvalds <torvalds@linux-foundation.org> 2019-05-09 16:28:26 -0400
committer: Linus Torvalds <torvalds@linux-foundation.org> 2019-05-09 16:28:26 -0400
commit: b1e76c3d3a774298475622bde63010972c9515a1 (patch)
tree: 33d5560c184464cfe9f9ba755b761686c8d59290
parent: 800c608c976c3f0a6d02ed7fbc600f1f6962ac73 (diff)
parent: 3213486f2e442831e324cc6201a2f9e924ecc235 (diff)
8 files changed, 288 insertions, 1 deletions
diff --git a/tools/arch/csky/include/uapi/asm/perf_regs.h b/tools/arch/csky/include/uapi/asm/perf_regs.h
new file mode 100644
index 000000000000..ee323d818592
--- /dev/null
+++ b/tools/arch/csky/include/uapi/asm/perf_regs.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef _ASM_CSKY_PERF_REGS_H
+#define _ASM_CSKY_PERF_REGS_H
+/* Index of struct pt_regs */
+enum perf_event_csky_regs {
+        PERF_REG_CSKY_TLS,
+        PERF_REG_CSKY_LR,
+        PERF_REG_CSKY_PC,
+        PERF_REG_CSKY_SR,
+        PERF_REG_CSKY_SP,
+        PERF_REG_CSKY_ORIG_A0,
+        PERF_REG_CSKY_A0,
+        PERF_REG_CSKY_A1,
+        PERF_REG_CSKY_A2,
+        PERF_REG_CSKY_A3,
+        PERF_REG_CSKY_REGS0,
+        PERF_REG_CSKY_REGS1,
+        PERF_REG_CSKY_REGS2,
+        PERF_REG_CSKY_REGS3,
+        PERF_REG_CSKY_REGS4,
+        PERF_REG_CSKY_REGS5,
+        PERF_REG_CSKY_REGS6,
+        PERF_REG_CSKY_REGS7,
+        PERF_REG_CSKY_REGS8,
+        PERF_REG_CSKY_REGS9,
+#if defined(__CSKYABIV2__)
+        PERF_REG_CSKY_EXREGS0,
+        PERF_REG_CSKY_EXREGS1,
+        PERF_REG_CSKY_EXREGS2,
+        PERF_REG_CSKY_EXREGS3,
+        PERF_REG_CSKY_EXREGS4,
+        PERF_REG_CSKY_EXREGS5,
+        PERF_REG_CSKY_EXREGS6,
+        PERF_REG_CSKY_EXREGS7,
+        PERF_REG_CSKY_EXREGS8,
+        PERF_REG_CSKY_EXREGS9,
+        PERF_REG_CSKY_EXREGS10,
+        PERF_REG_CSKY_EXREGS11,
+        PERF_REG_CSKY_EXREGS12,
+        PERF_REG_CSKY_EXREGS13,
+        PERF_REG_CSKY_EXREGS14,
+        PERF_REG_CSKY_HI,
+        PERF_REG_CSKY_LO,
+        PERF_REG_CSKY_DCSR,
+#endif
+        PERF_REG_CSKY_MAX,
+};
+#endif /* _ASM_CSKY_PERF_REGS_H */
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 0c52a01dc759..e1bb5288ab1f 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -59,6 +59,10 @@ ifeq ($(SRCARCH),arm64)
  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
 endif
+ifeq ($(SRCARCH),csky)
+  NO_PERF_REGS := 0
+endif
 ifeq ($(ARCH),s390)
  NO_PERF_REGS := 0
  NO_SYSCALL_TABLE := 0
@@ -77,7 +81,7 @@ endif
 # Disable it on all other architectures in case libdw unwind
 # support is detected in system. Add supported architectures
 # to the check.
-ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390))
+ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky))
  NO_LIBDW_DWARF_UNWIND := 1
 endif
diff --git a/tools/perf/arch/csky/Build b/tools/perf/arch/csky/Build
new file mode 100644
index 000000000000..e4e5f33c84d8
--- /dev/null
+++ b/tools/perf/arch/csky/Build
@@ -0,0 +1 @@
+perf-y += util/
diff --git a/tools/perf/arch/csky/Makefile b/tools/perf/arch/csky/Makefile
new file mode 100644
index 000000000000..7fbca175099e
--- /dev/null
+++ b/tools/perf/arch/csky/Makefile
@@ -0,0 +1,3 @@
+ifndef NO_DWARF
+PERF_HAVE_DWARF_REGS := 1
+endif
diff --git a/tools/perf/arch/csky/include/perf_regs.h b/tools/perf/arch/csky/include/perf_regs.h
new file mode 100644
index 000000000000..8f336ea1161a
--- /dev/null
+++ b/tools/perf/arch/csky/include/perf_regs.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
+#ifndef ARCH_PERF_REGS_H
+#define ARCH_PERF_REGS_H
+#include <stdlib.h>
+#include <linux/types.h>
+#include <asm/perf_regs.h>
+#define PERF_REGS_MASK  ((1ULL << PERF_REG_CSKY_MAX) - 1)
+#define PERF_REGS_MAX   PERF_REG_CSKY_MAX
+#define PERF_SAMPLE_REGS_ABI    PERF_SAMPLE_REGS_ABI_32
+#define PERF_REG_IP     PERF_REG_CSKY_PC
+#define PERF_REG_SP     PERF_REG_CSKY_SP
+static inline const char *perf_reg_name(int id)
+{
+        switch (id) {
+        case PERF_REG_CSKY_A0:
+                return "a0";
+        case PERF_REG_CSKY_A1:
+                return "a1";
+        case PERF_REG_CSKY_A2:
+                return "a2";
+        case PERF_REG_CSKY_A3:
+                return "a3";
+        case PERF_REG_CSKY_REGS0:
+                return "regs0";
+        case PERF_REG_CSKY_REGS1:
+                return "regs1";
+        case PERF_REG_CSKY_REGS2:
+                return "regs2";
+        case PERF_REG_CSKY_REGS3:
+                return "regs3";
+        case PERF_REG_CSKY_REGS4:
+                return "regs4";
+        case PERF_REG_CSKY_REGS5:
+                return "regs5";
+        case PERF_REG_CSKY_REGS6:
+                return "regs6";
+        case PERF_REG_CSKY_REGS7:
+                return "regs7";
+        case PERF_REG_CSKY_REGS8:
+                return "regs8";
+        case PERF_REG_CSKY_REGS9:
+                return "regs9";
+        case PERF_REG_CSKY_SP:
+                return "sp";
+        case PERF_REG_CSKY_LR:
+                return "lr";
+        case PERF_REG_CSKY_PC:
+                return "pc";
+#if defined(__CSKYABIV2__)
+        case PERF_REG_CSKY_EXREGS0:
+                return "exregs0";
+        case PERF_REG_CSKY_EXREGS1:
+                return "exregs1";
+        case PERF_REG_CSKY_EXREGS2:
+                return "exregs2";
+        case PERF_REG_CSKY_EXREGS3:
+                return "exregs3";
+        case PERF_REG_CSKY_EXREGS4:
+                return "exregs4";
+        case PERF_REG_CSKY_EXREGS5:
+                return "exregs5";
+        case PERF_REG_CSKY_EXREGS6:
+                return "exregs6";
+        case PERF_REG_CSKY_EXREGS7:
+                return "exregs7";
+        case PERF_REG_CSKY_EXREGS8:
+                return "exregs8";
+        case PERF_REG_CSKY_EXREGS9:
+                return "exregs9";
+        case PERF_REG_CSKY_EXREGS10:
+                return "exregs10";
+        case PERF_REG_CSKY_EXREGS11:
+                return "exregs11";
+        case PERF_REG_CSKY_EXREGS12:
+                return "exregs12";
+        case PERF_REG_CSKY_EXREGS13:
+                return "exregs13";
+        case PERF_REG_CSKY_EXREGS14:
+                return "exregs14";
+        case PERF_REG_CSKY_TLS:
+                return "tls";
+        case PERF_REG_CSKY_HI:
+                return "hi";
+        case PERF_REG_CSKY_LO:
+                return "lo";
+#endif
+        default:
+                return NULL;
+        }
+        return NULL;
+}
+#endif /* ARCH_PERF_REGS_H */
diff --git a/tools/perf/arch/csky/util/Build b/tools/perf/arch/csky/util/Build
new file mode 100644
index 000000000000..1160bb2332ba
--- /dev/null
+++ b/tools/perf/arch/csky/util/Build
@@ -0,0 +1,2 @@
+perf-$(CONFIG_DWARF) += dwarf-regs.o
+perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
diff --git a/tools/perf/arch/csky/util/dwarf-regs.c b/tools/perf/arch/csky/util/dwarf-regs.c
new file mode 100644
index 000000000000..ca86ecaeacbb
--- /dev/null
+++ b/tools/perf/arch/csky/util/dwarf-regs.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
+// Mapping of DWARF debug register numbers into register names.
+#include <stddef.h>
+#include <dwarf-regs.h>
+#if defined(__CSKYABIV2__)
+#define CSKY_MAX_REGS 73
+const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = {
+        /* r0 ~ r8 */
+        "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", "%regs2", "%regs3",
+        /* r9 ~ r15 */
+        "%regs4", "%regs5", "%regs6", "%regs7", "%regs8", "%regs9", "%sp",
+        "%lr",
+        /* r16 ~ r23 */
+        "%exregs0", "%exregs1", "%exregs2", "%exregs3", "%exregs4",
+        "%exregs5", "%exregs6", "%exregs7",
+        /* r24 ~ r31 */
+        "%exregs8", "%exregs9", "%exregs10", "%exregs11", "%exregs12",
+        "%exregs13", "%exregs14", "%tls",
+        "%pc", NULL, NULL, NULL, "%hi", "%lo", NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        "%epc",
+};
+#else
+#define CSKY_MAX_REGS 57
+const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = {
+        /* r0 ~ r8 */
+        "%sp", "%regs9", "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1",
+        /* r9 ~ r15 */
+        "%regs2", "%regs3", "%regs4", "%regs5", "%regs6", "%regs7", "%regs8",
+        "%lr",
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+        "%epc",
+};
+#endif
+const char *get_arch_regstr(unsigned int n)
+{
+        return (n < CSKY_MAX_REGS) ? csky_dwarf_regs_table[n] : NULL;
+}
diff --git a/tools/perf/arch/csky/util/unwind-libdw.c b/tools/perf/arch/csky/util/unwind-libdw.c
new file mode 100644
index 000000000000..4bb4a06776e4
--- /dev/null
+++ b/tools/perf/arch/csky/util/unwind-libdw.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
+#include <elfutils/libdwfl.h>
+#include "../../util/unwind-libdw.h"
+#include "../../util/perf_regs.h"
+#include "../../util/event.h"
+bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
+{
+        struct unwind_info *ui = arg;
+        struct regs_dump *user_regs = &ui->sample->user_regs;
+        Dwarf_Word dwarf_regs[PERF_REG_CSKY_MAX];
+#define REG(r) ({                                               \
+        Dwarf_Word val = 0;                                     \
+        perf_reg_value(&val, user_regs, PERF_REG_CSKY_##r);     \
+        val;                                                    \
+})
+#if defined(__CSKYABIV2__)
+        dwarf_regs[0]  = REG(A0);
+        dwarf_regs[1]  = REG(A1);
+        dwarf_regs[2]  = REG(A2);
+        dwarf_regs[3]  = REG(A3);
+        dwarf_regs[4]  = REG(REGS0);
+        dwarf_regs[5]  = REG(REGS1);
+        dwarf_regs[6]  = REG(REGS2);
+        dwarf_regs[7]  = REG(REGS3);
+        dwarf_regs[8]  = REG(REGS4);
+        dwarf_regs[9]  = REG(REGS5);
+        dwarf_regs[10] = REG(REGS6);
+        dwarf_regs[11] = REG(REGS7);
+        dwarf_regs[12] = REG(REGS8);
+        dwarf_regs[13] = REG(REGS9);
+        dwarf_regs[14] = REG(SP);
+        dwarf_regs[15] = REG(LR);
+        dwarf_regs[16] = REG(EXREGS0);
+        dwarf_regs[17] = REG(EXREGS1);
+        dwarf_regs[18] = REG(EXREGS2);
+        dwarf_regs[19] = REG(EXREGS3);
+        dwarf_regs[20] = REG(EXREGS4);
+        dwarf_regs[21] = REG(EXREGS5);
+        dwarf_regs[22] = REG(EXREGS6);
+        dwarf_regs[23] = REG(EXREGS7);
+        dwarf_regs[24] = REG(EXREGS8);
+        dwarf_regs[25] = REG(EXREGS9);
+        dwarf_regs[26] = REG(EXREGS10);
+        dwarf_regs[27] = REG(EXREGS11);
+        dwarf_regs[28] = REG(EXREGS12);
+        dwarf_regs[29] = REG(EXREGS13);
+        dwarf_regs[30] = REG(EXREGS14);
+        dwarf_regs[31] = REG(TLS);
+        dwarf_regs[32] = REG(PC);
+#else
+        dwarf_regs[0]  = REG(SP);
+        dwarf_regs[1]  = REG(REGS9);
+        dwarf_regs[2]  = REG(A0);
+        dwarf_regs[3]  = REG(A1);
+        dwarf_regs[4]  = REG(A2);
+        dwarf_regs[5]  = REG(A3);
+        dwarf_regs[6]  = REG(REGS0);
+        dwarf_regs[7]  = REG(REGS1);
+        dwarf_regs[8]  = REG(REGS2);
+        dwarf_regs[9]  = REG(REGS3);
+        dwarf_regs[10] = REG(REGS4);
+        dwarf_regs[11] = REG(REGS5);
+        dwarf_regs[12] = REG(REGS6);
+        dwarf_regs[13] = REG(REGS7);
+        dwarf_regs[14] = REG(REGS8);
+        dwarf_regs[15] = REG(LR);
+#endif
+        dwfl_thread_state_register_pc(thread, REG(PC));
+        return dwfl_thread_state_registers(thread, 0, PERF_REG_CSKY_MAX,
+                                           dwarf_regs);
+}
author	Linus Torvalds <torvalds@linux-foundation.org>	2019-05-09 16:28:26 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2019-05-09 16:28:26 -0400
commit	b1e76c3d3a774298475622bde63010972c9515a1 (patch)
tree	33d5560c184464cfe9f9ba755b761686c8d59290
parent	800c608c976c3f0a6d02ed7fbc600f1f6962ac73 (diff)
parent	3213486f2e442831e324cc6201a2f9e924ecc235 (diff)

diff --git a/tools/arch/csky/include/uapi/asm/perf_regs.h b/tools/arch/csky/include/uapi/asm/perf_regs.h new file mode 100644 index 000000000000..ee323d818592 --- /dev/null +++ b/tools/arch/csky/include/uapi/asm/perf_regs.h
@@ -0,0 +1,51 @@
		1	/* SPDX-License-Identifier: GPL-2.0 */
		2	// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
		3
		4	#ifndef _ASM_CSKY_PERF_REGS_H
		5	#define _ASM_CSKY_PERF_REGS_H
		6
		7	/* Index of struct pt_regs */
		8	enum perf_event_csky_regs {
		9	PERF_REG_CSKY_TLS,
		10	PERF_REG_CSKY_LR,
		11	PERF_REG_CSKY_PC,
		12	PERF_REG_CSKY_SR,
		13	PERF_REG_CSKY_SP,
		14	PERF_REG_CSKY_ORIG_A0,
		15	PERF_REG_CSKY_A0,
		16	PERF_REG_CSKY_A1,
		17	PERF_REG_CSKY_A2,
		18	PERF_REG_CSKY_A3,
		19	PERF_REG_CSKY_REGS0,
		20	PERF_REG_CSKY_REGS1,
		21	PERF_REG_CSKY_REGS2,
		22	PERF_REG_CSKY_REGS3,
		23	PERF_REG_CSKY_REGS4,
		24	PERF_REG_CSKY_REGS5,
		25	PERF_REG_CSKY_REGS6,
		26	PERF_REG_CSKY_REGS7,
		27	PERF_REG_CSKY_REGS8,
		28	PERF_REG_CSKY_REGS9,
		29	#if defined(__CSKYABIV2__)
		30	PERF_REG_CSKY_EXREGS0,
		31	PERF_REG_CSKY_EXREGS1,
		32	PERF_REG_CSKY_EXREGS2,
		33	PERF_REG_CSKY_EXREGS3,
		34	PERF_REG_CSKY_EXREGS4,
		35	PERF_REG_CSKY_EXREGS5,
		36	PERF_REG_CSKY_EXREGS6,
		37	PERF_REG_CSKY_EXREGS7,
		38	PERF_REG_CSKY_EXREGS8,
		39	PERF_REG_CSKY_EXREGS9,
		40	PERF_REG_CSKY_EXREGS10,
		41	PERF_REG_CSKY_EXREGS11,
		42	PERF_REG_CSKY_EXREGS12,
		43	PERF_REG_CSKY_EXREGS13,
		44	PERF_REG_CSKY_EXREGS14,
		45	PERF_REG_CSKY_HI,
		46	PERF_REG_CSKY_LO,
		47	PERF_REG_CSKY_DCSR,
		48	#endif
		49	PERF_REG_CSKY_MAX,
		50	};
		51	#endif /* _ASM_CSKY_PERF_REGS_H */


diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 0c52a01dc759..e1bb5288ab1f 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config
@@ -59,6 +59,10 @@ ifeq ($(SRCARCH),arm64)
59	LIBUNWIND_LIBS = -lunwind -lunwind-aarch64	59	LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
60	endif	60	endif
61		61
		62	ifeq ($(SRCARCH),csky)
		63	NO_PERF_REGS := 0
		64	endif
		65
62	ifeq ($(ARCH),s390)	66	ifeq ($(ARCH),s390)
63	NO_PERF_REGS := 0	67	NO_PERF_REGS := 0
64	NO_SYSCALL_TABLE := 0	68	NO_SYSCALL_TABLE := 0
@@ -77,7 +81,7 @@ endif
77	# Disable it on all other architectures in case libdw unwind	81	# Disable it on all other architectures in case libdw unwind
78	# support is detected in system. Add supported architectures	82	# support is detected in system. Add supported architectures
79	# to the check.	83	# to the check.
80	ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390))	84	ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky))
81	NO_LIBDW_DWARF_UNWIND := 1	85	NO_LIBDW_DWARF_UNWIND := 1
82	endif	86	endif
83		87


diff --git a/tools/perf/arch/csky/Build b/tools/perf/arch/csky/Build new file mode 100644 index 000000000000..e4e5f33c84d8 --- /dev/null +++ b/tools/perf/arch/csky/Build
@@ -0,0 +1 @@
			perf-y += util/


diff --git a/tools/perf/arch/csky/Makefile b/tools/perf/arch/csky/Makefile new file mode 100644 index 000000000000..7fbca175099e --- /dev/null +++ b/tools/perf/arch/csky/Makefile
@@ -0,0 +1,3 @@
		1	ifndef NO_DWARF
		2	PERF_HAVE_DWARF_REGS := 1
		3	endif


diff --git a/tools/perf/arch/csky/include/perf_regs.h b/tools/perf/arch/csky/include/perf_regs.h new file mode 100644 index 000000000000..8f336ea1161a --- /dev/null +++ b/tools/perf/arch/csky/include/perf_regs.h
@@ -0,0 +1,100 @@
		1	/* SPDX-License-Identifier: GPL-2.0 */
		2	// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
		3
		4	#ifndef ARCH_PERF_REGS_H
		5	#define ARCH_PERF_REGS_H
		6
		7	#include <stdlib.h>
		8	#include <linux/types.h>
		9	#include <asm/perf_regs.h>
		10
		11	#define PERF_REGS_MASK ((1ULL << PERF_REG_CSKY_MAX) - 1)
		12	#define PERF_REGS_MAX PERF_REG_CSKY_MAX
		13	#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_32
		14
		15	#define PERF_REG_IP PERF_REG_CSKY_PC
		16	#define PERF_REG_SP PERF_REG_CSKY_SP
		17
		18	static inline const char *perf_reg_name(int id)
		19	{
		20	switch (id) {
		21	case PERF_REG_CSKY_A0:
		22	return "a0";
		23	case PERF_REG_CSKY_A1:
		24	return "a1";
		25	case PERF_REG_CSKY_A2:
		26	return "a2";
		27	case PERF_REG_CSKY_A3:
		28	return "a3";
		29	case PERF_REG_CSKY_REGS0:
		30	return "regs0";
		31	case PERF_REG_CSKY_REGS1:
		32	return "regs1";
		33	case PERF_REG_CSKY_REGS2:
		34	return "regs2";
		35	case PERF_REG_CSKY_REGS3:
		36	return "regs3";
		37	case PERF_REG_CSKY_REGS4:
		38	return "regs4";
		39	case PERF_REG_CSKY_REGS5:
		40	return "regs5";
		41	case PERF_REG_CSKY_REGS6:
		42	return "regs6";
		43	case PERF_REG_CSKY_REGS7:
		44	return "regs7";
		45	case PERF_REG_CSKY_REGS8:
		46	return "regs8";
		47	case PERF_REG_CSKY_REGS9:
		48	return "regs9";
		49	case PERF_REG_CSKY_SP:
		50	return "sp";
		51	case PERF_REG_CSKY_LR:
		52	return "lr";
		53	case PERF_REG_CSKY_PC:
		54	return "pc";
		55	#if defined(__CSKYABIV2__)
		56	case PERF_REG_CSKY_EXREGS0:
		57	return "exregs0";
		58	case PERF_REG_CSKY_EXREGS1:
		59	return "exregs1";
		60	case PERF_REG_CSKY_EXREGS2:
		61	return "exregs2";
		62	case PERF_REG_CSKY_EXREGS3:
		63	return "exregs3";
		64	case PERF_REG_CSKY_EXREGS4:
		65	return "exregs4";
		66	case PERF_REG_CSKY_EXREGS5:
		67	return "exregs5";
		68	case PERF_REG_CSKY_EXREGS6:
		69	return "exregs6";
		70	case PERF_REG_CSKY_EXREGS7:
		71	return "exregs7";
		72	case PERF_REG_CSKY_EXREGS8:
		73	return "exregs8";
		74	case PERF_REG_CSKY_EXREGS9:
		75	return "exregs9";
		76	case PERF_REG_CSKY_EXREGS10:
		77	return "exregs10";
		78	case PERF_REG_CSKY_EXREGS11:
		79	return "exregs11";
		80	case PERF_REG_CSKY_EXREGS12:
		81	return "exregs12";
		82	case PERF_REG_CSKY_EXREGS13:
		83	return "exregs13";
		84	case PERF_REG_CSKY_EXREGS14:
		85	return "exregs14";
		86	case PERF_REG_CSKY_TLS:
		87	return "tls";
		88	case PERF_REG_CSKY_HI:
		89	return "hi";
		90	case PERF_REG_CSKY_LO:
		91	return "lo";
		92	#endif
		93	default:
		94	return NULL;
		95	}
		96
		97	return NULL;
		98	}
		99
		100	#endif /* ARCH_PERF_REGS_H */


diff --git a/tools/perf/arch/csky/util/Build b/tools/perf/arch/csky/util/Build new file mode 100644 index 000000000000..1160bb2332ba --- /dev/null +++ b/tools/perf/arch/csky/util/Build
@@ -0,0 +1,2 @@
		1	perf-$(CONFIG_DWARF) += dwarf-regs.o
		2	perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o


diff --git a/tools/perf/arch/csky/util/dwarf-regs.c b/tools/perf/arch/csky/util/dwarf-regs.c new file mode 100644 index 000000000000..ca86ecaeacbb --- /dev/null +++ b/tools/perf/arch/csky/util/dwarf-regs.c
@@ -0,0 +1,49 @@
		1	// SPDX-License-Identifier: GPL-2.0
		2	// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
		3	// Mapping of DWARF debug register numbers into register names.
		4
		5	#include <stddef.h>
		6	#include <dwarf-regs.h>
		7
		8	#if defined(__CSKYABIV2__)
		9	#define CSKY_MAX_REGS 73
		10	const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = {
		11	/* r0 ~ r8 */
		12	"%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1", "%regs2", "%regs3",
		13	/* r9 ~ r15 */
		14	"%regs4", "%regs5", "%regs6", "%regs7", "%regs8", "%regs9", "%sp",
		15	"%lr",
		16	/* r16 ~ r23 */
		17	"%exregs0", "%exregs1", "%exregs2", "%exregs3", "%exregs4",
		18	"%exregs5", "%exregs6", "%exregs7",
		19	/* r24 ~ r31 */
		20	"%exregs8", "%exregs9", "%exregs10", "%exregs11", "%exregs12",
		21	"%exregs13", "%exregs14", "%tls",
		22	"%pc", NULL, NULL, NULL, "%hi", "%lo", NULL, NULL,
		23	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		24	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		25	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		26	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		27	"%epc",
		28	};
		29	#else
		30	#define CSKY_MAX_REGS 57
		31	const char *csky_dwarf_regs_table[CSKY_MAX_REGS] = {
		32	/* r0 ~ r8 */
		33	"%sp", "%regs9", "%a0", "%a1", "%a2", "%a3", "%regs0", "%regs1",
		34	/* r9 ~ r15 */
		35	"%regs2", "%regs3", "%regs4", "%regs5", "%regs6", "%regs7", "%regs8",
		36	"%lr",
		37	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		38	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		39	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		40	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		41	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
		42	"%epc",
		43	};
		44	#endif
		45
		46	const char *get_arch_regstr(unsigned int n)
		47	{
		48	return (n < CSKY_MAX_REGS) ? csky_dwarf_regs_table[n] : NULL;
		49	}


diff --git a/tools/perf/arch/csky/util/unwind-libdw.c b/tools/perf/arch/csky/util/unwind-libdw.c new file mode 100644 index 000000000000..4bb4a06776e4 --- /dev/null +++ b/tools/perf/arch/csky/util/unwind-libdw.c
@@ -0,0 +1,77 @@
		1	// SPDX-License-Identifier: GPL-2.0
		2	// Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd.
		3
		4	#include <elfutils/libdwfl.h>
		5	#include "../../util/unwind-libdw.h"
		6	#include "../../util/perf_regs.h"
		7	#include "../../util/event.h"
		8
		9	bool libdw__arch_set_initial_registers(Dwfl_Thread thread, void arg)
		10	{
		11	struct unwind_info *ui = arg;
		12	struct regs_dump *user_regs = &ui->sample->user_regs;
		13	Dwarf_Word dwarf_regs[PERF_REG_CSKY_MAX];
		14
		15	#define REG(r) ({ \
		16	Dwarf_Word val = 0; \
		17	perf_reg_value(&val, user_regs, PERF_REG_CSKY_##r); \
		18	val; \
		19	})
		20
		21	#if defined(__CSKYABIV2__)
		22	dwarf_regs[0] = REG(A0);
		23	dwarf_regs[1] = REG(A1);
		24	dwarf_regs[2] = REG(A2);
		25	dwarf_regs[3] = REG(A3);
		26	dwarf_regs[4] = REG(REGS0);
		27	dwarf_regs[5] = REG(REGS1);
		28	dwarf_regs[6] = REG(REGS2);
		29	dwarf_regs[7] = REG(REGS3);
		30	dwarf_regs[8] = REG(REGS4);
		31	dwarf_regs[9] = REG(REGS5);
		32	dwarf_regs[10] = REG(REGS6);
		33	dwarf_regs[11] = REG(REGS7);
		34	dwarf_regs[12] = REG(REGS8);
		35	dwarf_regs[13] = REG(REGS9);
		36	dwarf_regs[14] = REG(SP);
		37	dwarf_regs[15] = REG(LR);
		38	dwarf_regs[16] = REG(EXREGS0);
		39	dwarf_regs[17] = REG(EXREGS1);
		40	dwarf_regs[18] = REG(EXREGS2);
		41	dwarf_regs[19] = REG(EXREGS3);
		42	dwarf_regs[20] = REG(EXREGS4);
		43	dwarf_regs[21] = REG(EXREGS5);
		44	dwarf_regs[22] = REG(EXREGS6);
		45	dwarf_regs[23] = REG(EXREGS7);
		46	dwarf_regs[24] = REG(EXREGS8);
		47	dwarf_regs[25] = REG(EXREGS9);
		48	dwarf_regs[26] = REG(EXREGS10);
		49	dwarf_regs[27] = REG(EXREGS11);
		50	dwarf_regs[28] = REG(EXREGS12);
		51	dwarf_regs[29] = REG(EXREGS13);
		52	dwarf_regs[30] = REG(EXREGS14);
		53	dwarf_regs[31] = REG(TLS);
		54	dwarf_regs[32] = REG(PC);
		55	#else
		56	dwarf_regs[0] = REG(SP);
		57	dwarf_regs[1] = REG(REGS9);
		58	dwarf_regs[2] = REG(A0);
		59	dwarf_regs[3] = REG(A1);
		60	dwarf_regs[4] = REG(A2);
		61	dwarf_regs[5] = REG(A3);
		62	dwarf_regs[6] = REG(REGS0);
		63	dwarf_regs[7] = REG(REGS1);
		64	dwarf_regs[8] = REG(REGS2);
		65	dwarf_regs[9] = REG(REGS3);
		66	dwarf_regs[10] = REG(REGS4);
		67	dwarf_regs[11] = REG(REGS5);
		68	dwarf_regs[12] = REG(REGS6);
		69	dwarf_regs[13] = REG(REGS7);
		70	dwarf_regs[14] = REG(REGS8);
		71	dwarf_regs[15] = REG(LR);
		72	#endif
		73	dwfl_thread_state_register_pc(thread, REG(PC));
		74
		75	return dwfl_thread_state_registers(thread, 0, PERF_REG_CSKY_MAX,
		76	dwarf_regs);
		77	}