struct user.u_ar0 is defined to contain a pointer offset on all
architectures in which it is defined (all architectures which define an
a.out format except SPARC.) However, it has a pointer type in the headers,
which is pointless -- <asm/user.h> is not exported to userspace, and it
just makes the code messy.
Redefine the field as "unsigned long" (which is the same size as a pointer
on all Linux architectures) and change the setting code to user offsetof()
instead of hand-coded arithmetic.
Cc: Linux Arch Mailing List <linux-arch@vger.kernel.org>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Håvard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
has_dumped = 1;
current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(current->comm));
- dump.u_ar0 = (u32)(((unsigned long)(&dump.regs)) -
- ((unsigned long)(&dump)));
+ dump.u_ar0 = offsetof(struct user32, regs);
dump.signal = signr;
dump_thread32(regs, &dump);
current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(dump.u_comm));
#ifndef __sparc__
- dump.u_ar0 = (void *)(((unsigned long)(&dump.regs)) - ((unsigned long)(&dump)));
+ dump.u_ar0 = offsetof(struct user, regs);
#endif
dump.signal = signr;
dump_thread(regs, &dump);
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
esp register. */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used */
- struct pt_regs * u_ar0; /* Used by gdb to help find the values for */
+ unsigned long u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
unsigned long magic; /* To uniquely identify a core file */
char u_comm[32]; /* User command that was responsible */
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
esp register. */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used */
- struct user_regs_struct *u_ar0;
+ unsigned long u_ar0;
/* Used by gdb to help find the values for */
/* the registers. */
unsigned long magic; /* To uniquely identify a core file */
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
esp register. */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used */
- struct user_regs_struct *u_ar0;
- /* Used by gdb to help find the values for */
+ unsigned long u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
unsigned long magic; /* To uniquely identify a core file */
char u_comm[32]; /* User command that was responsible */
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
esp register. */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used */
- struct user_regs_struct *u_ar0;
- /* Used by gdb to help find the values for */
+ unsigned long u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
struct user_m68kfp_struct* u_fpstate; /* Math Co-processor pointer. */
unsigned long magic; /* To uniquely identify a core file */
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
the top of the stack is always found in the
esp register. */
long int signal; /* Signal that caused the core dump. */
- struct user_regs_struct *u_ar0;
- /* Used by gdb to help find the values for */
+ unsigned long u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
unsigned long magic; /* To uniquely identify a core file */
char u_comm[32]; /* User command that was responsible */
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
unsigned long start_data; /* data starting address */
unsigned long start_stack; /* stack starting address */
long int signal; /* signal causing core dump */
- struct regs * u_ar0; /* help gdb find registers */
+ unsigned long u_ar0; /* help gdb find registers */
unsigned long magic; /* identifies a core file */
char u_comm[32]; /* user command name */
};
esp register. */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used */
- struct user_pt_regs * u_ar0; /* Used by gdb to help find the values for */
+ unsigned long u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
struct user_i387_struct* u_fpstate; /* Math Co-processor pointer. */
unsigned long magic; /* To uniquely identify a core file */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used */
int pad1;
- struct user_pt_regs * u_ar0; /* Used by gdb to help find the values for */
+ unsigned long u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
struct user_i387_struct* u_fpstate; /* Math Co-processor pointer. */
unsigned long magic; /* To uniquely identify a core file */
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff