mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
e2bb80d55d
We store elapsed time for a crashed process in struct elf_prstatus using 'timeval' structures. Once glibc starts using 64-bit time_t, this becomes incompatible with the kernel's idea of timeval since the structure layout no longer matches on 32-bit architectures. This changes the definition of the elf_prstatus structure to use __kernel_old_timeval instead, which is hardcoded to the currently used binary layout. There is no risk of overflow in y2038 though, because the time values are all relative times, and can store up to 68 years of process elapsed time. There is a risk of applications breaking at build time when they use the new kernel headers and expect the type to be exactly 'timeval' rather than a structure that has the same fields as before. Those applications have to be modified to deal with 64-bit time_t anyway. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
101 lines
3 KiB
C
101 lines
3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
#ifndef _UAPI_LINUX_ELFCORE_H
|
|
#define _UAPI_LINUX_ELFCORE_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/signal.h>
|
|
#include <linux/time.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/elf.h>
|
|
#include <linux/fs.h>
|
|
|
|
struct elf_siginfo
|
|
{
|
|
int si_signo; /* signal number */
|
|
int si_code; /* extra code */
|
|
int si_errno; /* errno */
|
|
};
|
|
|
|
|
|
#ifndef __KERNEL__
|
|
typedef elf_greg_t greg_t;
|
|
typedef elf_gregset_t gregset_t;
|
|
typedef elf_fpregset_t fpregset_t;
|
|
typedef elf_fpxregset_t fpxregset_t;
|
|
#define NGREG ELF_NGREG
|
|
#endif
|
|
|
|
/*
|
|
* Definitions to generate Intel SVR4-like core files.
|
|
* These mostly have the same names as the SVR4 types with "elf_"
|
|
* tacked on the front to prevent clashes with linux definitions,
|
|
* and the typedef forms have been avoided. This is mostly like
|
|
* the SVR4 structure, but more Linuxy, with things that Linux does
|
|
* not support and which gdb doesn't really use excluded.
|
|
* Fields present but not used are marked with "XXX".
|
|
*/
|
|
struct elf_prstatus
|
|
{
|
|
#if 0
|
|
long pr_flags; /* XXX Process flags */
|
|
short pr_why; /* XXX Reason for process halt */
|
|
short pr_what; /* XXX More detailed reason */
|
|
#endif
|
|
struct elf_siginfo pr_info; /* Info associated with signal */
|
|
short pr_cursig; /* Current signal */
|
|
unsigned long pr_sigpend; /* Set of pending signals */
|
|
unsigned long pr_sighold; /* Set of held signals */
|
|
#if 0
|
|
struct sigaltstack pr_altstack; /* Alternate stack info */
|
|
struct sigaction pr_action; /* Signal action for current sig */
|
|
#endif
|
|
pid_t pr_pid;
|
|
pid_t pr_ppid;
|
|
pid_t pr_pgrp;
|
|
pid_t pr_sid;
|
|
struct __kernel_old_timeval pr_utime; /* User time */
|
|
struct __kernel_old_timeval pr_stime; /* System time */
|
|
struct __kernel_old_timeval pr_cutime; /* Cumulative user time */
|
|
struct __kernel_old_timeval pr_cstime; /* Cumulative system time */
|
|
#if 0
|
|
long pr_instr; /* Current instruction */
|
|
#endif
|
|
elf_gregset_t pr_reg; /* GP registers */
|
|
#ifdef CONFIG_BINFMT_ELF_FDPIC
|
|
/* When using FDPIC, the loadmap addresses need to be communicated
|
|
* to GDB in order for GDB to do the necessary relocations. The
|
|
* fields (below) used to communicate this information are placed
|
|
* immediately after ``pr_reg'', so that the loadmap addresses may
|
|
* be viewed as part of the register set if so desired.
|
|
*/
|
|
unsigned long pr_exec_fdpic_loadmap;
|
|
unsigned long pr_interp_fdpic_loadmap;
|
|
#endif
|
|
int pr_fpvalid; /* True if math co-processor being used. */
|
|
};
|
|
|
|
#define ELF_PRARGSZ (80) /* Number of chars for args */
|
|
|
|
struct elf_prpsinfo
|
|
{
|
|
char pr_state; /* numeric process state */
|
|
char pr_sname; /* char for pr_state */
|
|
char pr_zomb; /* zombie */
|
|
char pr_nice; /* nice val */
|
|
unsigned long pr_flag; /* flags */
|
|
__kernel_uid_t pr_uid;
|
|
__kernel_gid_t pr_gid;
|
|
pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid;
|
|
/* Lots missing */
|
|
char pr_fname[16]; /* filename of executable */
|
|
char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
|
|
};
|
|
|
|
#ifndef __KERNEL__
|
|
typedef struct elf_prstatus prstatus_t;
|
|
typedef struct elf_prpsinfo prpsinfo_t;
|
|
#define PRARGSZ ELF_PRARGSZ
|
|
#endif
|
|
|
|
|
|
#endif /* _UAPI_LINUX_ELFCORE_H */
|