diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-12 08:18:41 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-12 08:18:41 -0800 |
commit | 067d14f0dde8c7d7c41064e7eb021db7477c9aac (patch) | |
tree | f44f763488cd7a64e01a96762e8c7b8722958820 /arch/sparc/include/asm/uprobes.h | |
parent | ce38aa9cbed3d109355b0169b520362c409c0541 (diff) | |
parent | 541cc39433a81d581f2738f59f7bd310ff1d512a (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc updates from David Miller:
"Just a bunch of small cleanups and fixes here, and support for user
probes from Allen Pais"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: fix a building error reported by kbuild
sparc64: fix typo in pgd_clear()
sparc64: restore irq in error paths in iommu
sparc: leon: Fix a retry loop in leon_init_timers()
sparc64: make string buffers large enough
sparc64: move dereference after check for NULL
sparc: kernel: use builtin_platform_driver
sparc64:Support User Probes for sparc
Diffstat (limited to 'arch/sparc/include/asm/uprobes.h')
-rw-r--r-- | arch/sparc/include/asm/uprobes.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/uprobes.h b/arch/sparc/include/asm/uprobes.h new file mode 100644 index 000000000000..f87aae5a908e --- /dev/null +++ b/arch/sparc/include/asm/uprobes.h @@ -0,0 +1,59 @@ +#ifndef _ASM_UPROBES_H +#define _ASM_UPROBES_H +/* + * User-space Probes (UProbes) for sparc + * + * Copyright (C) 2013 Oracle, Inc. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * Authors: + * Jose E. Marchesi <jose.marchesi@oracle.com> + * Eric Saint Etienne <eric.saint.etienne@oracle.com> + */ + +typedef u32 uprobe_opcode_t; + +#define MAX_UINSN_BYTES 4 +#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2) + +#define UPROBE_SWBP_INSN_SIZE 4 +#define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */ +#define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */ + +#define ANNUL_BIT (1 << 29) + +struct arch_uprobe { + union { + u8 insn[MAX_UINSN_BYTES]; + u32 ixol; + }; +}; + +struct arch_uprobe_task { + u32 saved_tpc; + u32 saved_tnpc; +}; + +struct task_struct; +struct notifier_block; + +extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); +extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); +extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); +extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); + +#endif /* _ASM_UPROBES_H */ |