--- v11
+++ v12
@@ -1,9 +1,9 @@
From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
-This patch adds ptrace interface test for GPR/FPR registers.
-This adds ptrace interface based helper functions related to
-GPR/FPR access and some assembly helper functions related to
-GPR/FPR registers.
+This patch adds SPR number for TAR, PPR, DSCR special
+purpose registers. It also adds TM, VSX, VMX related
+instructions which will then be used by patches later
+in the series.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
@@ -28,665 +28,70 @@
Cc: linux-kernel@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
-Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
---
- tools/testing/selftests/powerpc/ptrace/Makefile | 3 +-
- .../testing/selftests/powerpc/ptrace/ptrace-gpr.c | 195 +++++++++++++++++++
- .../testing/selftests/powerpc/ptrace/ptrace-gpr.h | 74 ++++++++
- tools/testing/selftests/powerpc/ptrace/ptrace.S | 131 +++++++++++++
- tools/testing/selftests/powerpc/ptrace/ptrace.h | 208 +++++++++++++++++++++
- 5 files changed, 610 insertions(+), 1 deletion(-)
- create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c
- create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h
- create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace.S
+ tools/testing/selftests/powerpc/reg.h | 42 ++++++++++++++++++++++++++++++++---
+ 1 file changed, 39 insertions(+), 3 deletions(-)
-diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile
-index f6948f3..31e8e33 100644
---- a/tools/testing/selftests/powerpc/ptrace/Makefile
-+++ b/tools/testing/selftests/powerpc/ptrace/Makefile
-@@ -1,4 +1,5 @@
--TEST_PROGS := ptrace-ebb
-+TEST_PROGS := ptrace-ebb ptrace-gpr
+diff --git a/tools/testing/selftests/powerpc/reg.h b/tools/testing/selftests/powerpc/reg.h
+index 65bfdee..5183349 100644
+--- a/tools/testing/selftests/powerpc/reg.h
++++ b/tools/testing/selftests/powerpc/reg.h
+@@ -18,6 +18,19 @@
+
+ #define mb() asm volatile("sync" : : : "memory");
+
++/* Vector Instructions */
++#define VSX_XX1(xs, ra, rb) (((xs) & 0x1f) << 21 | ((ra) << 16) | \
++ ((rb) << 11) | (((xs) >> 5)))
++#define STXVD2X(xs, ra, rb) .long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
++#define LXVD2X(xs, ra, rb) .long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
+
- all: $(TEST_PROGS)
- CFLAGS += -m64
- $(TEST_PROGS): ../harness.c ptrace.S ../utils.c ptrace.h
-diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c
-new file mode 100644
-index 0000000..cdd6a92
---- /dev/null
-+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c
-@@ -0,0 +1,195 @@
-+/*
-+ * Ptrace test for GPR/FPR registers
-+ *
-+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version
-+ * 2 of the License, or (at your option) any later version.
-+ */
-+#include "ptrace.h"
-+#include "ptrace-gpr.h"
++/* TM instructions */
++#define TBEGIN ".long 0x7C00051D;"
++#define TABORT ".long 0x7C00071D;"
++#define TEND ".long 0x7C00055D;"
++#define TSUSPEND ".long 0x7C0005DD;"
++#define TRESUME ".long 0x7C2005DD;"
+
-+/* Tracer and Tracee Shared Data */
-+int shm_id;
-+volatile int *cptr, *pptr;
+ #define SPRN_MMCR2 769
+ #define SPRN_MMCRA 770
+ #define SPRN_MMCR0 779
+@@ -46,10 +59,33 @@
+ #define SPRN_SDAR 781
+ #define SPRN_SIER 768
+
+-#define SPRN_TEXASR 0x82
++#define SPRN_TEXASR 0x82 /* Transaction Exception and Status Register */
+ #define SPRN_TFIAR 0x81 /* Transaction Failure Inst Addr */
+ #define SPRN_TFHAR 0x80 /* Transaction Failure Handler Addr */
+-#define TEXASR_FS 0x08000000
+-#define SPRN_TAR 0x32f
++#define SPRN_TAR 0x32f /* Target Address Register */
+
-+void store_gpr(unsigned long *addr);
-+void store_fpr(float *addr);
++#define SPRN_DSCR_PRIV 0x11 /* Privilege State DSCR */
++#define SPRN_DSCR 0x03 /* Data Stream Control Register */
++#define SPRN_PPR 896 /* Program Priority Register */
+
-+float a = FPR_1;
-+float b = FPR_2;
-+float c = FPR_3;
-+
-+void gpr(void)
-+{
-+ unsigned long gpr_buf[18];
-+ float fpr_buf[32];
-+
-+ cptr = (int *)shmat(shm_id, NULL, 0);
-+
-+ asm __volatile__(
-+ "li 14, %[gpr_1];"
-+ "li 15, %[gpr_1];"
-+ "li 16, %[gpr_1];"
-+ "li 17, %[gpr_1];"
-+ "li 18, %[gpr_1];"
-+ "li 19, %[gpr_1];"
-+ "li 20, %[gpr_1];"
-+ "li 21, %[gpr_1];"
-+ "li 22, %[gpr_1];"
-+ "li 23, %[gpr_1];"
-+ "li 24, %[gpr_1];"
-+ "li 25, %[gpr_1];"
-+ "li 26, %[gpr_1];"
-+ "li 27, %[gpr_1];"
-+ "li 28, %[gpr_1];"
-+ "li 29, %[gpr_1];"
-+ "li 30, %[gpr_1];"
-+ "li 31, %[gpr_1];"
-+
-+ "lfs 0, 0(%[flt_1]);"
-+ "lfs 1, 0(%[flt_1]);"
-+ "lfs 2, 0(%[flt_1]);"
-+ "lfs 3, 0(%[flt_1]);"
-+ "lfs 4, 0(%[flt_1]);"
-+ "lfs 5, 0(%[flt_1]);"
-+ "lfs 6, 0(%[flt_1]);"
-+ "lfs 7, 0(%[flt_1]);"
-+ "lfs 8, 0(%[flt_1]);"
-+ "lfs 9, 0(%[flt_1]);"
-+ "lfs 10, 0(%[flt_1]);"
-+ "lfs 11, 0(%[flt_1]);"
-+ "lfs 12, 0(%[flt_1]);"
-+ "lfs 13, 0(%[flt_1]);"
-+ "lfs 14, 0(%[flt_1]);"
-+ "lfs 15, 0(%[flt_1]);"
-+ "lfs 16, 0(%[flt_1]);"
-+ "lfs 17, 0(%[flt_1]);"
-+ "lfs 18, 0(%[flt_1]);"
-+ "lfs 19, 0(%[flt_1]);"
-+ "lfs 20, 0(%[flt_1]);"
-+ "lfs 21, 0(%[flt_1]);"
-+ "lfs 22, 0(%[flt_1]);"
-+ "lfs 23, 0(%[flt_1]);"
-+ "lfs 24, 0(%[flt_1]);"
-+ "lfs 25, 0(%[flt_1]);"
-+ "lfs 26, 0(%[flt_1]);"
-+ "lfs 27, 0(%[flt_1]);"
-+ "lfs 28, 0(%[flt_1]);"
-+ "lfs 29, 0(%[flt_1]);"
-+ "lfs 30, 0(%[flt_1]);"
-+ "lfs 31, 0(%[flt_1]);"
-+
-+ :
-+ : [gpr_1]"i"(GPR_1), [flt_1] "r" (&a)
-+ : "memory", "r6", "r7", "r8", "r9", "r10",
-+ "r11", "r12", "r13", "r14", "r15", "r16", "r17",
-+ "r18", "r19", "r20", "r21", "r22", "r23", "r24",
-+ "r25", "r26", "r27", "r28", "r29", "r30", "r31"
-+ );
-+
-+ cptr[1] = 1;
-+
-+ while (!cptr[0]);
-+
-+ store_gpr(gpr_buf);
-+ store_fpr(fpr_buf);
-+
-+ if (validate_gpr(gpr_buf, GPR_3))
-+ exit(1);
-+
-+ if (validate_fpr_float(fpr_buf, c))
-+ exit(1);
-+
-+ exit(0);
-+}
-+
-+int trace_gpr(pid_t child)
-+{
-+ unsigned long gpr[18];
-+ unsigned long fpr[32];
-+ int ret;
-+
-+ ret = start_trace(child);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = show_gpr(child, gpr);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = validate_gpr(gpr, GPR_1);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = show_fpr(child, fpr);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = validate_fpr(fpr, FPR_1_REP);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = write_gpr(child, GPR_3);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = write_fpr(child, FPR_3_REP);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ ret = stop_trace(child);
-+ if (ret)
-+ return TEST_FAIL;
-+
-+ return TEST_PASS;
-+}
-+
-+int ptrace_gpr(void)
-+{
-+ pid_t pid;
-+ int ret, status;
-+
-+ shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
-+ pid = fork();
-+ if (pid < 0) {
-+ perror("fork() failed");
-+ return TEST_FAIL;
-+ }
-+ if (pid == 0)
-+ gpr();
-+
-+ if (pid) {
-+ pptr = (int *)shmat(shm_id, NULL, 0);
-+ while (!pptr[1]);
-+
-+ ret = trace_gpr(pid);
-+ if (ret) {
-+ kill(pid, SIGTERM);
-+ return TEST_FAIL;
-+ }
-+
-+ pptr[0] = 1;
-+ shmdt((void *)pptr);
-+
-+ ret = wait(&status);
-+ if (ret != pid) {
-+ printf("Child's exit status not captured\n");
-+ return TEST_FAIL;
-+ }
-+
-+ if (WIFEXITED(status)) {
-+ if (WEXITSTATUS(status))
-+ return TEST_FAIL;
-+ }
-+ return TEST_PASS;
-+ }
-+ return TEST_PASS;
-+}
-+
-+int main(int argc, char *argv[])
-+{
-+ return test_harness(ptrace_gpr, "ptrace_gpr");
-+}
-diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h
-new file mode 100644
-index 0000000..e30fef6
---- /dev/null
-+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h
-@@ -0,0 +1,74 @@
-+/*
-+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version
-+ * 2 of the License, or (at your option) any later version.
-+ */
-+#define GPR_1 1
-+#define GPR_2 2
-+#define GPR_3 3
-+#define GPR_4 4
-+
-+#define FPR_1 0.001
-+#define FPR_2 0.002
-+#define FPR_3 0.003
-+#define FPR_4 0.004
-+
-+#define FPR_1_REP 0x3f50624de0000000
-+#define FPR_2_REP 0x3f60624de0000000
-+#define FPR_3_REP 0x3f689374c0000000
-+#define FPR_4_REP 0x3f70624de0000000
-+
-+/* Buffer must have 18 elements */
-+int validate_gpr(unsigned long *gpr, unsigned long val)
-+{
-+ int i, found = 1;
-+
-+ for (i = 0; i < 18; i++) {
-+ if (gpr[i] != val) {
-+ printf("GPR[%d]: %lx Expected: %lx\n",
-+ i+14, gpr[i], val);
-+ found = 0;
-+ }
-+ }
-+
-+ if (!found)
-+ return TEST_FAIL;
-+ return TEST_PASS;
-+}
-+
-+/* Buffer must have 32 elements */
-+int validate_fpr(unsigned long *fpr, unsigned long val)
-+{
-+ int i, found = 1;
-+
-+ for (i = 0; i < 32; i++) {
-+ if (fpr[i] != val) {
-+ printf("FPR[%d]: %lx Expected: %lx\n", i, fpr[i], val);
-+ found = 0;
-+ }
-+ }
-+
-+ if (!found)
-+ return TEST_FAIL;
-+ return TEST_PASS;
-+}
-+
-+/* Buffer must have 32 elements */
-+int validate_fpr_float(float *fpr, float val)
-+{
-+ int i, found = 1;
-+
-+ for (i = 0; i < 32; i++) {
-+ if (fpr[i] != val) {
-+ printf("FPR[%d]: %f Expected: %f\n", i, fpr[i], val);
-+ found = 0;
-+ }
-+ }
-+
-+ if (!found)
-+ return TEST_FAIL;
-+ return TEST_PASS;
-+}
-diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace.S b/tools/testing/selftests/powerpc/ptrace/ptrace.S
-new file mode 100644
-index 0000000..193beea
---- /dev/null
-+++ b/tools/testing/selftests/powerpc/ptrace/ptrace.S
-@@ -0,0 +1,131 @@
-+/*
-+ * Ptrace interface test helper assembly functions
-+ *
-+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version
-+ * 2 of the License, or (at your option) any later version.
-+ */
-+#include <ppc-asm.h>
-+#include "../reg.h"
-+
-+
-+/* Non volatile GPR - unsigned long buf[18] */
-+FUNC_START(load_gpr)
-+ ld 14, 0*8(3)
-+ ld 15, 1*8(3)
-+ ld 16, 2*8(3)
-+ ld 17, 3*8(3)
-+ ld 18, 4*8(3)
-+ ld 19, 5*8(3)
-+ ld 20, 6*8(3)
-+ ld 21, 7*8(3)
-+ ld 22, 8*8(3)
-+ ld 23, 9*8(3)
-+ ld 24, 10*8(3)
-+ ld 25, 11*8(3)
-+ ld 26, 12*8(3)
-+ ld 27, 13*8(3)
-+ ld 28, 14*8(3)
-+ ld 29, 15*8(3)
-+ ld 30, 16*8(3)
-+ ld 31, 17*8(3)
-+ blr
-+FUNC_END(load_gpr)
-+
-+FUNC_START(store_gpr)
-+ std 14, 0*8(3)
-+ std 15, 1*8(3)
-+ std 16, 2*8(3)
-+ std 17, 3*8(3)
-+ std 18, 4*8(3)
-+ std 19, 5*8(3)
-+ std 20, 6*8(3)
-+ std 21, 7*8(3)
-+ std 22, 8*8(3)
-+ std 23, 9*8(3)
-+ std 24, 10*8(3)
-+ std 25, 11*8(3)
-+ std 26, 12*8(3)
-+ std 27, 13*8(3)
-+ std 28, 14*8(3)
-+ std 29, 15*8(3)
-+ std 30, 16*8(3)
-+ std 31, 17*8(3)
-+ blr
-+FUNC_END(store_gpr)
-+
-+/* Single Precision Float - float buf[32] */
-+FUNC_START(load_fpr)
-+ lfs 0, 0*4(3)
-+ lfs 1, 1*4(3)
-+ lfs 2, 2*4(3)
-+ lfs 3, 3*4(3)
-+ lfs 4, 4*4(3)
-+ lfs 5, 5*4(3)
-+ lfs 6, 6*4(3)
-+ lfs 7, 7*4(3)
-+ lfs 8, 8*4(3)
-+ lfs 9, 9*4(3)
-+ lfs 10, 10*4(3)
-+ lfs 11, 11*4(3)
-+ lfs 12, 12*4(3)
-+ lfs 13, 13*4(3)
-+ lfs 14, 14*4(3)
-+ lfs 15, 15*4(3)
-+ lfs 16, 16*4(3)
-+ lfs 17, 17*4(3)
-+ lfs 18, 18*4(3)
-+ lfs 19, 19*4(3)
-+ lfs 20, 20*4(3)
-+ lfs 21, 21*4(3)
-+ lfs 22, 22*4(3)
-+ lfs 23, 23*4(3)
-+ lfs 24, 24*4(3)
-+ lfs 25, 25*4(3)
-+ lfs 26, 26*4(3)
-+ lfs 27, 27*4(3)
-+ lfs 28, 28*4(3)
-+ lfs 29, 29*4(3)
-+ lfs 30, 30*4(3)
-+ lfs 31, 31*4(3)
-+ blr
-+FUNC_END(load_fpr)
-+
-+FUNC_START(store_fpr)
-+ stfs 0, 0*4(3)
-+ stfs 1, 1*4(3)
-+ stfs 2, 2*4(3)
-+ stfs 3, 3*4(3)
-+ stfs 4, 4*4(3)
-+ stfs 5, 5*4(3)
-+ stfs 6, 6*4(3)
-+ stfs 7, 7*4(3)
-+ stfs 8, 8*4(3)
-+ stfs 9, 9*4(3)
-+ stfs 10, 10*4(3)
-+ stfs 11, 11*4(3)
-+ stfs 12, 12*4(3)
-+ stfs 13, 13*4(3)
-+ stfs 14, 14*4(3)
-+ stfs 15, 15*4(3)
-+ stfs 16, 16*4(3)
-+ stfs 17, 17*4(3)
-+ stfs 18, 18*4(3)
-+ stfs 19, 19*4(3)
-+ stfs 20, 20*4(3)
-+ stfs 21, 21*4(3)
-+ stfs 22, 22*4(3)
-+ stfs 23, 23*4(3)
-+ stfs 24, 24*4(3)
-+ stfs 25, 25*4(3)
-+ stfs 26, 26*4(3)
-+ stfs 27, 27*4(3)
-+ stfs 28, 28*4(3)
-+ stfs 29, 29*4(3)
-+ stfs 30, 30*4(3)
-+ stfs 31, 31*4(3)
-+ blr
-+FUNC_END(store_fpr)
-diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace.h b/tools/testing/selftests/powerpc/ptrace/ptrace.h
-index 37d7c59..b6df47f 100644
---- a/tools/testing/selftests/powerpc/ptrace/ptrace.h
-+++ b/tools/testing/selftests/powerpc/ptrace/ptrace.h
-@@ -172,6 +172,214 @@ fail:
- return TEST_FAIL;
- }
++/* TEXASR register bits */
++#define TEXASR_FC 0xFE00000000000000
++#define TEXASR_FP 0x0100000000000000
++#define TEXASR_DA 0x0080000000000000
++#define TEXASR_NO 0x0040000000000000
++#define TEXASR_FO 0x0020000000000000
++#define TEXASR_SIC 0x0010000000000000
++#define TEXASR_NTC 0x0008000000000000
++#define TEXASR_TC 0x0004000000000000
++#define TEXASR_TIC 0x0002000000000000
++#define TEXASR_IC 0x0001000000000000
++#define TEXASR_IFC 0x0000800000000000
++#define TEXASR_ABT 0x0000000100000000
++#define TEXASR_SPD 0x0000000080000000
++#define TEXASR_HV 0x0000000020000000
++#define TEXASR_PR 0x0000000010000000
++#define TEXASR_FS 0x0000000008000000
++#define TEXASR_TE 0x0000000004000000
++#define TEXASR_ROT 0x0000000002000000
-+/* FPR */
-+int show_fpr(pid_t child, unsigned long *fpr)
-+{
-+ struct fpr_regs *regs;
-+ int ret, i;
-+
-+ regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
-+ ret = ptrace(PTRACE_GETFPREGS, child, NULL, regs);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ if (fpr) {
-+ for (i = 0; i < 32; i++)
-+ fpr[i] = regs->fpr[i];
-+ }
-+ return TEST_PASS;
-+}
-+
-+int write_fpr(pid_t child, unsigned long val)
-+{
-+ struct fpr_regs *regs;
-+ int ret, i;
-+
-+ regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
-+ ret = ptrace(PTRACE_GETFPREGS, child, NULL, regs);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ for (i = 0; i < 32; i++)
-+ regs->fpr[i] = val;
-+
-+ ret = ptrace(PTRACE_SETFPREGS, child, NULL, regs);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+ return TEST_PASS;
-+}
-+
-+int show_ckpt_fpr(pid_t child, unsigned long *fpr)
-+{
-+ struct fpr_regs *regs;
-+ struct iovec iov;
-+ int ret, i;
-+
-+ regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
-+ iov.iov_base = regs;
-+ iov.iov_len = sizeof(struct fpr_regs);
-+
-+ ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CFPR, &iov);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ if (fpr) {
-+ for (i = 0; i < 32; i++)
-+ fpr[i] = regs->fpr[i];
-+ }
-+
-+ return TEST_PASS;
-+}
-+
-+int write_ckpt_fpr(pid_t child, unsigned long val)
-+{
-+ struct fpr_regs *regs;
-+ struct iovec iov;
-+ int ret, i;
-+
-+ regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
-+ iov.iov_base = regs;
-+ iov.iov_len = sizeof(struct fpr_regs);
-+
-+ ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CFPR, &iov);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ for (i = 0; i < 32; i++)
-+ regs->fpr[i] = val;
-+
-+ ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CFPR, &iov);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+ return TEST_PASS;
-+}
-+
-+/* GPR */
-+int show_gpr(pid_t child, unsigned long *gpr)
-+{
-+ struct pt_regs *regs;
-+ int ret, i;
-+
-+ regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
-+ if (!regs) {
-+ perror("malloc() failed");
-+ return TEST_FAIL;
-+ }
-+
-+ ret = ptrace(PTRACE_GETREGS, child, NULL, regs);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ if (gpr) {
-+ for (i = 14; i < 32; i++)
-+ gpr[i-14] = regs->gpr[i];
-+ }
-+
-+ return TEST_PASS;
-+}
-+
-+int write_gpr(pid_t child, unsigned long val)
-+{
-+ struct pt_regs *regs;
-+ int i, ret;
-+
-+ regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
-+ if (!regs) {
-+ perror("malloc() failed");
-+ return TEST_FAIL;
-+ }
-+
-+ ret = ptrace(PTRACE_GETREGS, child, NULL, regs);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ for (i = 14; i < 32; i++)
-+ regs->gpr[i] = val;
-+
-+ ret = ptrace(PTRACE_SETREGS, child, NULL, regs);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+ return TEST_PASS;
-+}
-+
-+int show_ckpt_gpr(pid_t child, unsigned long *gpr)
-+{
-+ struct pt_regs *regs;
-+ struct iovec iov;
-+ int ret, i;
-+
-+ regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
-+ if (!regs) {
-+ perror("malloc() failed");
-+ return TEST_FAIL;
-+ }
-+
-+ iov.iov_base = (u64 *) regs;
-+ iov.iov_len = sizeof(struct pt_regs);
-+
-+ ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CGPR, &iov);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ if (gpr) {
-+ for (i = 14; i < 32; i++)
-+ gpr[i-14] = regs->gpr[i];
-+ }
-+
-+ return TEST_PASS;
-+}
-+
-+int write_ckpt_gpr(pid_t child, unsigned long val)
-+{
-+ struct pt_regs *regs;
-+ struct iovec iov;
-+ int ret, i;
-+
-+ regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
-+ if (!regs) {
-+ perror("malloc() failed\n");
-+ return TEST_FAIL;
-+ }
-+ iov.iov_base = (u64 *) regs;
-+ iov.iov_len = sizeof(struct pt_regs);
-+
-+ ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CGPR, &iov);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+
-+ for (i = 14; i < 32; i++)
-+ regs->gpr[i] = val;
-+
-+ ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CGPR, &iov);
-+ if (ret) {
-+ perror("ptrace(PTRACE_GETREGSET) failed");
-+ return TEST_FAIL;
-+ }
-+ return TEST_PASS;
-+}
-+
- /* Analyse TEXASR after TM failure */
- inline unsigned long get_tfiar(void)
- {
+ #endif /* _SELFTESTS_POWERPC_REG_H */
--
1.8.3.1