/* * Ptrace test for VMX/VSX 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-vsx.h" /* Tracer and Tracee Shared Data */ int shm_id; int *cptr, *pptr; unsigned long fp_load[VEC_MAX]; unsigned long fp_load_new[VEC_MAX]; unsigned long fp_store[VEC_MAX]; void vsx(void) { int ret; cptr = (int *)shmat(shm_id, NULL, 0); loadvsx(fp_load, 0); cptr[1] = 1; while (!cptr[0]) asm volatile("" : : : "memory"); shmdt((void *) cptr); storevsx(fp_store, 0); ret = compare_vsx_vmx(fp_store, fp_load_new); if (ret) exit(1); exit(0); } int trace_vsx(pid_t child) { unsigned long vsx[VSX_MAX]; unsigned long vmx[VMX_MAX + 2][2]; FAIL_IF(start_trace(child)); FAIL_IF(show_vsx(child, vsx)); FAIL_IF(validate_vsx(vsx, fp_load)); FAIL_IF(show_vmx(child, vmx)); FAIL_IF(validate_vmx(vmx, fp_load)); memset(vsx, 0, sizeof(vsx)); memset(vmx, 0, sizeof(vmx)); load_vsx_vmx(fp_load_new, vsx, vmx); FAIL_IF(write_vsx(child, vsx)); FAIL_IF(write_vmx(child, vmx)); FAIL_IF(stop_trace(child)); return TEST_PASS; } int ptrace_vsx(void) { pid_t pid; int ret, status, i; shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT); for (i = 0; i < VEC_MAX; i++) fp_load[i] = i + rand(); for (i = 0; i < VEC_MAX; i++) fp_load_new[i] = i + 2 * rand(); pid = fork(); if (pid < 0) { perror("fork() failed"); return TEST_FAIL; } if (pid == 0) vsx(); if (pid) { pptr = (int *)shmat(shm_id, NULL, 0); while (!pptr[1]) asm volatile("" : : : "memory"); ret = trace_vsx(pid); if (ret) { kill(pid, SIGTERM); shmdt((void *)pptr); shmctl(shm_id, IPC_RMID, NULL); return TEST_FAIL; } pptr[0] = 1; shmdt((void *)pptr); ret = wait(&status); shmctl(shm_id, IPC_RMID, NULL); if (ret != pid) { printf("Child's exit status not captured\n"); return TEST_FAIL; } return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL : TEST_PASS; } return TEST_PASS; } int main(int argc, char *argv[]) { return test_harness(ptrace_vsx, "ptrace_vsx"); } ' name='id' value='b5b46c4740aed1538544f0fa849c5b76c7823469'/>
path: root/drivers/usb/serial/keyspan_usa67msg.h
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authorJiri Slaby <jslaby@suse.cz>2017-01-18 14:29:21 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-19 08:39:44 +0100
commitb5b46c4740aed1538544f0fa849c5b76c7823469 (patch)
tree125e7aced4835bad6f6a0c0d02d012f333caf922 /drivers/usb/serial/keyspan_usa67msg.h
parentfa19a769f82fb9a5ca000b83cacd13fcaeda51ac (diff)
objtool: Fix IRET's opcode
The IRET opcode is 0xcf according to the Intel manual and also to objdump of my vmlinux: 1ea8: 48 cf iretq Fix the opcode in arch_decode_instruction(). The previous value (0xc5) seems to correspond to LDS. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170118132921.19319-1-jslaby@suse.cz Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/serial/keyspan_usa67msg.h')