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Commit 87e8407f authored by Markus Metzger's avatar Markus Metzger Committed by Ingo Molnar
Browse files

x86, ptrace: add bts_struct size to status command 



Return the size of bts_struct in the PTRACE_BTS_STATUS command.
Change types to u32.

Signed-off-by: default avatarMarkus Metzger <markus.t.metzger@intel.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 58f6f6ea

arch/x86/kernel/ptrace.c

+2 −0
Original line number Diff line number Diff line
@@ -787,6 +787,8 @@ static int ptrace_bts_status(struct task_struct *child, 
			cfg.flags |= PTRACE_BTS_O_SCHED;

	}



	cfg.bts_size = sizeof(struct bts_struct);



	if (copy_to_user(ucfg, &cfg, sizeof(cfg)))

		return -EFAULT;

include/asm-x86/ptrace-abi.h

+8 −3
Original line number Diff line number Diff line
@@ -81,16 +81,21 @@ 
#define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */



#ifndef __ASSEMBLY__



#include <asm/types.h>



/* configuration/status structure used in PTRACE_BTS_CONFIG and

   PTRACE_BTS_STATUS commands.

*/

struct ptrace_bts_config {

	/* requested or actual size of BTS buffer in bytes */

	unsigned int size;

	u32 size;

	/* bitmask of below flags */

	unsigned int flags;

	u32 flags;

	/* buffer overflow signal */

	unsigned int signal;

	u32 signal;

	/* actual size of bts_struct in bytes */

	u32 bts_size;

};

#endif