69d4d6e5fd
'struct ppc_inst' is an internal representation of an instruction, but in-memory instructions are and will remain a table of 'u32' forever. Replace all 'struct ppc_inst *' used for locating an instruction in memory by 'u32 *'. This removes a lot of undue casts to 'struct ppc_inst *'. It also helps locating ab-use of 'struct ppc_inst' dereference. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> [mpe: Fix ppc_inst_next(), use u32 instead of unsigned int] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/7062722b087228e42cbd896e39bfdf526d6a340a.1621516826.git.christophe.leroy@csgroup.eu
37 lines
801 B
C
37 lines
801 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _ASM_UPROBES_H
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#define _ASM_UPROBES_H
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/*
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* User-space Probes (UProbes) for powerpc
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*
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* Copyright IBM Corporation, 2007-2012
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*
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* Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com>
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*/
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#include <linux/notifier.h>
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#include <asm/probes.h>
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#include <asm/inst.h>
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typedef ppc_opcode_t uprobe_opcode_t;
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#define MAX_UINSN_BYTES 8
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#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES)
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/* The following alias is needed for reference from arch-agnostic code */
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#define UPROBE_SWBP_INSN BREAKPOINT_INSTRUCTION
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#define UPROBE_SWBP_INSN_SIZE 4 /* swbp insn size in bytes */
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struct arch_uprobe {
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union {
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u32 insn[2];
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u32 ixol[2];
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};
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};
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struct arch_uprobe_task {
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unsigned long saved_trap_nr;
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};
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#endif /* _ASM_UPROBES_H */
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