openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

uprobes/core: Make macro names consistent 

Rename macros that refer to individual uprobe to start with
UPROBE_ instead of UPROBES_.

This is pure cleanup, no functional change intended.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@linux.vnet.ibm.com>
Cc: Linux-mm <linux-mm@kvack.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120312092514.5379.36595.sendpatchset@srdronam.in.ibm.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Srikar Dronamraju 2012-03-12 14:55:14 +05:30 committed by Ingo Molnar
parent 35aa621b5a
commit 900771a483
4 changed files with 23 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/include/asm/uprobes.h
View File

@ -26,10 +26,10 @@
typedef u8 uprobe_opcode_t;
#define MAX_UINSN_BYTES 16
#define UPROBES_XOL_SLOT_BYTES 128 /* to keep it cache aligned */
#define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */
#define UPROBES_BKPT_INSN 0xcc
#define UPROBES_BKPT_INSN_SIZE 1
#define UPROBE_BKPT_INSN 0xcc
#define UPROBE_BKPT_INSN_SIZE 1
struct arch_uprobe {
u16 fixups;

18
arch/x86/kernel/uprobes.c
View File

@ -31,14 +31,14 @@
/* Post-execution fixups. */
/* No fixup needed */
#define UPROBES_FIX_NONE 0x0
#define UPROBE_FIX_NONE 0x0
/* Adjust IP back to vicinity of actual insn */
#define UPROBES_FIX_IP 0x1
#define UPROBE_FIX_IP 0x1
/* Adjust the return address of a call insn */
#define UPROBES_FIX_CALL 0x2
#define UPROBE_FIX_CALL 0x2
#define UPROBES_FIX_RIP_AX 0x8000
#define UPROBES_FIX_RIP_CX 0x4000
#define UPROBE_FIX_RIP_AX 0x8000
#define UPROBE_FIX_RIP_CX 0x4000
/* Adaptations for mhiramat x86 decoder v14. */
#define OPCODE1(insn) ((insn)->opcode.bytes[0])
@ -269,9 +269,9 @@ static void prepare_fixups(struct arch_uprobe *auprobe, struct insn *insn)
break;
}
if (fix_ip)
auprobe->fixups |= UPROBES_FIX_IP;
auprobe->fixups |= UPROBE_FIX_IP;
if (fix_call)
auprobe->fixups |= UPROBES_FIX_CALL;
auprobe->fixups |= UPROBE_FIX_CALL;
}
#ifdef CONFIG_X86_64
@ -341,12 +341,12 @@ static void handle_riprel_insn(struct mm_struct *mm, struct arch_uprobe *auprobe
* is NOT the register operand, so we use %rcx (register
* #1) for the scratch register.
*/
auprobe->fixups = UPROBES_FIX_RIP_CX;
auprobe->fixups = UPROBE_FIX_RIP_CX;
/* Change modrm from 00 000 101 to 00 000 001. */
*cursor = 0x1;
} else {
/* Use %rax (register #0) for the scratch register. */
auprobe->fixups = UPROBES_FIX_RIP_AX;
auprobe->fixups = UPROBE_FIX_RIP_AX;
/* Change modrm from 00 xxx 101 to 00 xxx 000 */
*cursor = (reg << 3);
}

4
include/linux/uprobes.h
View File

@ -35,10 +35,10 @@ struct vm_area_struct;
/* flags that denote/change uprobes behaviour */
/* Have a copy of original instruction */
#define UPROBES_COPY_INSN 0x1
#define UPROBE_COPY_INSN 0x1
/* Dont run handlers when first register/ last unregister in progress*/
#define UPROBES_RUN_HANDLER 0x2
#define UPROBE_RUN_HANDLER 0x2
struct uprobe_consumer {
int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs);

18
kernel/events/uprobes.c
View File

@ -177,7 +177,7 @@ static int __replace_page(struct vm_area_struct *vma, struct page *page, struct
*/
bool __weak is_bkpt_insn(uprobe_opcode_t *insn)
{
return *insn == UPROBES_BKPT_INSN;
return *insn == UPROBE_BKPT_INSN;
}
/*
@ -259,8 +259,8 @@ static int write_opcode(struct mm_struct *mm, struct arch_uprobe *auprobe,
/* poke the new insn in, ASSUMES we don't cross page boundary */
vaddr &= ~PAGE_MASK;
BUG_ON(vaddr + UPROBES_BKPT_INSN_SIZE > PAGE_SIZE);
memcpy(vaddr_new + vaddr, &opcode, UPROBES_BKPT_INSN_SIZE);
BUG_ON(vaddr + UPROBE_BKPT_INSN_SIZE > PAGE_SIZE);
memcpy(vaddr_new + vaddr, &opcode, UPROBE_BKPT_INSN_SIZE);
kunmap_atomic(vaddr_new);
kunmap_atomic(vaddr_old);
@ -308,7 +308,7 @@ static int read_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_
lock_page(page);
vaddr_new = kmap_atomic(page);
vaddr &= ~PAGE_MASK;
memcpy(opcode, vaddr_new + vaddr, UPROBES_BKPT_INSN_SIZE);
memcpy(opcode, vaddr_new + vaddr, UPROBE_BKPT_INSN_SIZE);
kunmap_atomic(vaddr_new);
unlock_page(page);
@ -352,7 +352,7 @@ int __weak set_bkpt(struct mm_struct *mm, struct arch_uprobe *auprobe, unsigned
if (result)
return result;
return write_opcode(mm, auprobe, vaddr, UPROBES_BKPT_INSN);
return write_opcode(mm, auprobe, vaddr, UPROBE_BKPT_INSN);
}
/**
@ -635,7 +635,7 @@ static int install_breakpoint(struct mm_struct *mm, struct uprobe *uprobe,
addr = (unsigned long)vaddr;
if (!(uprobe->flags & UPROBES_COPY_INSN)) {
if (!(uprobe->flags & UPROBE_COPY_INSN)) {
ret = copy_insn(uprobe, vma, addr);
if (ret)
return ret;
@ -647,7 +647,7 @@ static int install_breakpoint(struct mm_struct *mm, struct uprobe *uprobe,
if (ret)
return ret;
uprobe->flags |= UPROBES_COPY_INSN;
uprobe->flags |= UPROBE_COPY_INSN;
}
ret = set_bkpt(mm, &uprobe->arch, addr);
@ -857,7 +857,7 @@ int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *
uprobe->consumers = NULL;
__uprobe_unregister(uprobe);
} else {
uprobe->flags |= UPROBES_RUN_HANDLER;
uprobe->flags |= UPROBE_RUN_HANDLER;
}
}
@ -889,7 +889,7 @@ void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consume
if (consumer_del(uprobe, consumer)) {
if (!uprobe->consumers) {
__uprobe_unregister(uprobe);
uprobe->flags &= ~UPROBES_RUN_HANDLER;
uprobe->flags &= ~UPROBE_RUN_HANDLER;
}
}