ccb83afd81
When threads were added to the kernel, the pr_pid member of the NT_PRSTATUS note was repurposed to store LWP IDs instead of process IDs. However, the process ID was no longer recorded in core dumps. This change adds a pr_pid field to prpsinfo (NT_PRSINFO). Rather than bumping the prpsinfo version number, note parsers can use the note's payload size to determine if pr_pid is present. Reviewed by: kib, emaste (older version) MFC after: 2 months Differential Revision: https://reviews.freebsd.org/D7117
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
/*-
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* Copyright (c) 1998 John D. Polstra.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_PROCFS_H_
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#define _SYS_PROCFS_H_
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#include <sys/param.h>
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#include <machine/reg.h>
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typedef struct reg gregset_t;
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typedef struct fpreg fpregset_t;
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/*
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* These structures define an interface between core files and the debugger.
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* Never change or delete any elements. If you add elements, add them to
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* the end of the structure, and increment the value of its version field.
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* This will help to ensure that today's core dump will still be usable
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* with next year's debugger.
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*
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* A lot more things should be added to these structures. At present,
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* they contain the absolute bare minimum required to allow GDB to work
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* with ELF core dumps.
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*/
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/*
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* The parenthsized numbers like (1) indicate the minimum version number
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* for which each element exists in the structure. The version number is
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* not bumped when adding new fields to the end, only if the meaning of
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* an existing field changes. Additional fields are annotated as (1a),
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* (1b), etc. to indicate the groupings of additions.
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*/
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#define PRSTATUS_VERSION 1 /* Current version of prstatus_t */
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typedef struct prstatus {
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int pr_version; /* Version number of struct (1) */
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size_t pr_statussz; /* sizeof(prstatus_t) (1) */
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size_t pr_gregsetsz; /* sizeof(gregset_t) (1) */
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size_t pr_fpregsetsz; /* sizeof(fpregset_t) (1) */
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int pr_osreldate; /* Kernel version (1) */
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int pr_cursig; /* Current signal (1) */
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pid_t pr_pid; /* LWP (Thread) ID (1) */
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gregset_t pr_reg; /* General purpose registers (1) */
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} prstatus_t;
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typedef gregset_t prgregset_t[1];
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typedef fpregset_t prfpregset_t;
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#define PRFNAMESZ 16 /* Maximum command length saved */
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#define PRARGSZ 80 /* Maximum argument bytes saved */
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#define PRPSINFO_VERSION 1 /* Current version of prpsinfo_t */
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typedef struct prpsinfo {
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int pr_version; /* Version number of struct (1) */
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size_t pr_psinfosz; /* sizeof(prpsinfo_t) (1) */
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char pr_fname[PRFNAMESZ+1]; /* Command name, null terminated (1) */
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char pr_psargs[PRARGSZ+1]; /* Arguments, null terminated (1) */
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pid_t pr_pid; /* Process ID (1a) */
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} prpsinfo_t;
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typedef struct thrmisc {
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char pr_tname[MAXCOMLEN+1]; /* Thread name, null terminated (1) */
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u_int _pad; /* Convenience pad, 0-filled (1) */
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} thrmisc_t;
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typedef uint64_t psaddr_t; /* An address in the target process. */
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#ifdef __HAVE_REG32
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typedef struct prstatus32 {
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int32_t pr_version;
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uint32_t pr_statussz;
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uint32_t pr_gregsetsz;
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uint32_t pr_fpregsetsz;
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int32_t pr_osreldate;
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int32_t pr_cursig;
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int32_t pr_pid;
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struct reg32 pr_reg;
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} prstatus32_t;
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typedef struct prpsinfo32 {
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int32_t pr_version;
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uint32_t pr_psinfosz;
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char pr_fname[PRFNAMESZ+1];
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char pr_psargs[PRARGSZ+1];
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int32_t pr_pid;
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} prpsinfo32_t;
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struct thrmisc32 {
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char pr_tname[MAXCOMLEN+1];
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uint32_t _pad;
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};
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#endif /* __HAVE_REG32 */
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#endif /* _SYS_PROCFS_H_ */
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