[uClibc-cvs] uClibc/libc/sysdeps/linux/frv/sys procfs.h, NONE, 1.1 ptrace.h, NONE, 1.1 ucontext.h, NONE, 1.1
Erik Andersen
andersen at uclibc.org
Wed Feb 18 08:04:54 UTC 2004
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Update of /var/cvs/uClibc/libc/sysdeps/linux/frv/sys
In directory nail:/tmp/cvs-serv7699/libc/sysdeps/linux/frv/sys
Added Files:
procfs.h ptrace.h ucontext.h
Log Message:
Alexandre Oliva writes:
This patch adds code to uClibc to support a new ABI designed for the
FR-V architecture, that enables text segments of executables and
shared libraries to be shared by multiple processes on an OS such as
uClinux, that can run on FR-V processors without an MMU.
Patches for binutils and GCC have just been posted in the
corresponding mailing lists. The binutils patch was approved,
but there's one additional patch pending review, that I posted
this week. An updated GCC patch will be posted to
gcc-patches at gcc.gnu.org as soon as I complete testing (I used a
known-good compiler to test the uClibc patch below).
Since the existing dynamic loader code didn't support independent
relocation of segments, it required changes that were somewhat
extensive. I've added a number of new machine-specific macros to try
to keep the platform and ABI-specific details outside the generic
code. I hope this is not a problem.
--- NEW FILE: ucontext.h ---
/* Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
#include <features.h>
#include <signal.h>
/* We need the signal context definitions even if they are not used
included in <signal.h>. */
#include <bits/sigcontext.h>
typedef unsigned long greg_t;
/* Number of general registers. */
#define NGREG (10+2+64)
/* Container for all general registers. */
typedef greg_t gregset_t[NGREG];
#ifdef __USE_GNU
/* Number of each register is the `gregset_t' array. */
enum
{
PSR = 0,
#define PSR PSR
ISR = 1,
#define ISR ISR
CCR = 2,
#define CCR CCR
CCCR = 3,
#define CCCR CCCR
LR = 4,
#define LR LR
LCR = 5,
#define LCR LCR
PC = 6,
#define PC PC
__STATUS = 7,
#define __STATUS __STATUS
SYSCALLNO = 8,
#define SYSCALLNO SYSCALLNO
ORIG_GR8 = 9,
#define ORIG_GR8 ORIG_GR8
GNER0 = 10,
#define GNER0 GNER0
GNER1 = 11,
#define GNER1 GNER1
GR0 = 12,
#define GR0 GR0
GR1 = 13,
#define GR1 GR1
GR2 = 14,
#define GR2 GR2
GR3 = 15,
#define GR3 GR3
GR4 = 16,
#define GR4 GR4
GR5 = 17,
#define GR5 GR5
GR6 = 18,
#define GR6 GR6
GR7 = 19,
#define GR7 GR7
GR8 = 20,
#define GR8 GR8
GR9 = 21,
#define GR9 GR9
GR10 = 22,
#define GR10 GR10
GR11 = 23,
#define GR11 GR11
GR12 = 24,
#define GR12 GR12
GR13 = 25,
#define GR13 GR13
GR14 = 26,
#define GR14 GR14
GR15 = 27,
#define GR15 GR15
GR16 = 28,
#define GR16 GR16
GR17 = 29,
#define GR17 GR17
GR18 = 30,
#define GR18 GR18
GR19 = 31,
#define GR19 GR19
GR20 = 32,
#define GR20 GR20
GR21 = 33,
#define GR21 GR21
GR22 = 34,
#define GR22 GR22
GR23 = 35,
#define GR23 GR23
GR24 = 36,
#define GR24 GR24
GR25 = 37,
#define GR25 GR25
GR26 = 38,
#define GR26 GR26
GR27 = 39,
#define GR27 GR27
GR28 = 40,
#define GR28 GR28
GR29 = 41,
#define GR29 GR29
GR30 = 42,
#define GR30 GR30
GR31 = 43,
#define GR31 GR31
GR32 = 44,
#define GR32 GR32
GR33 = 45,
#define GR33 GR33
GR34 = 46,
#define GR34 GR34
GR35 = 47,
#define GR35 GR35
GR36 = 48,
#define GR36 GR36
GR37 = 49,
#define GR37 GR37
GR38 = 50,
#define GR38 GR38
GR39 = 51,
#define GR39 GR39
GR40 = 52,
#define GR40 GR40
GR41 = 53,
#define GR41 GR41
GR42 = 54,
#define GR42 GR42
GR43 = 55,
#define GR43 GR43
GR44 = 56,
#define GR44 GR44
GR45 = 57,
#define GR45 GR45
GR46 = 58,
#define GR46 GR46
GR47 = 59,
#define GR47 GR47
GR48 = 60,
#define GR48 GR48
GR49 = 61,
#define GR49 GR49
GR50 = 62,
#define GR50 GR50
GR51 = 63,
#define GR51 GR51
GR52 = 64,
#define GR52 GR52
GR53 = 65,
#define GR53 GR53
GR54 = 66,
#define GR54 GR54
GR55 = 67,
#define GR55 GR55
GR56 = 68,
#define GR56 GR56
GR57 = 69,
#define GR57 GR57
GR58 = 70,
#define GR58 GR58
GR59 = 71,
#define GR59 GR59
GR60 = 72,
#define GR60 GR60
GR61 = 73,
#define GR61 GR61
GR62 = 74,
#define GR62 GR62
GR63 = 75,
#define GR63 GR63
};
#endif
typedef unsigned long freg_t;
/* Number of FPU registers. */
#define NFPREG (64+2+2+8+2+1)
#ifdef __USE_GNU
/* Number of each register is the `gregset_t' array. */
enum
{
FR0 = 0,
#define FR0 FR0
FR1 = 1,
#define FR1 FR1
FR2 = 2,
#define FR2 FR2
FR3 = 3,
#define FR3 FR3
FR4 = 4,
#define FR4 FR4
FR5 = 5,
#define FR5 FR5
FR6 = 6,
#define FR6 FR6
FR7 = 7,
#define FR7 FR7
FR8 = 8,
#define FR8 FR8
FR9 = 9,
#define FR9 FR9
FR10 = 10,
#define FR10 FR10
FR11 = 11,
#define FR11 FR11
FR12 = 12,
#define FR12 FR12
FR13 = 13,
#define FR13 FR13
FR14 = 14,
#define FR14 FR14
FR15 = 15,
#define FR15 FR15
FR16 = 16,
#define FR16 FR16
FR17 = 17,
#define FR17 FR17
FR18 = 18,
#define FR18 FR18
FR19 = 19,
#define FR19 FR19
FR20 = 20,
#define FR20 FR20
FR21 = 21,
#define FR21 FR21
FR22 = 22,
#define FR22 FR22
FR23 = 23,
#define FR23 FR23
FR24 = 24,
#define FR24 FR24
FR25 = 25,
#define FR25 FR25
FR26 = 26,
#define FR26 FR26
FR27 = 27,
#define FR27 FR27
FR28 = 28,
#define FR28 FR28
FR29 = 29,
#define FR29 FR29
FR30 = 30,
#define FR30 FR30
FR31 = 31,
#define FR31 FR31
FR32 = 32,
#define FR32 FR32
FR33 = 33,
#define FR33 FR33
FR34 = 34,
#define FR34 FR34
FR35 = 35,
#define FR35 FR35
FR36 = 36,
#define FR36 FR36
FR37 = 37,
#define FR37 FR37
FR38 = 38,
#define FR38 FR38
FR39 = 39,
#define FR39 FR39
FR40 = 40,
#define FR40 FR40
FR41 = 41,
#define FR41 FR41
FR42 = 42,
#define FR42 FR42
FR43 = 43,
#define FR43 FR43
FR44 = 44,
#define FR44 FR44
FR45 = 45,
#define FR45 FR45
FR46 = 46,
#define FR46 FR46
FR47 = 47,
#define FR47 FR47
FR48 = 48,
#define FR48 FR48
FR49 = 49,
#define FR49 FR49
FR50 = 50,
#define FR50 FR50
FR51 = 51,
#define FR51 FR51
FR52 = 52,
#define FR52 FR52
FR53 = 53,
#define FR53 FR53
FR54 = 54,
#define FR54 FR54
FR55 = 55,
#define FR55 FR55
FR56 = 56,
#define FR56 FR56
FR57 = 57,
#define FR57 FR57
FR58 = 58,
#define FR58 FR58
FR59 = 59,
#define FR59 FR59
FR60 = 60,
#define FR60 FR60
FR61 = 61,
#define FR61 FR61
FR62 = 62,
#define FR62 FR62
FR63 = 63,
#define FR63 FR63
FNER0 = 64,
#define FNER0 FNER0
FNER1 = 65,
#define FNER1 FNER1
MSR0 = 66,
#define MSR0 MSR0
MSR1 = 67,
#define MSR1 MSR1
ACC0 = 68,
#define ACC0 ACC0
ACC1 = 69,
#define ACC1 ACC1
ACC2 = 70,
#define ACC2 ACC2
ACC3 = 71,
#define ACC3 ACC3
ACC4 = 72,
#define ACC4 ACC4
ACC5 = 73,
#define ACC5 ACC5
ACC6 = 74,
#define ACC6 ACC6
ACC7 = 75,
#define ACC7 ACC7
ACCG0123 = 76,
#define ACCG0123 ACCG0123
ACCG4567 = 77,
#define ACCG4567 ACCG4567
FSR0 = 78,
#define FSR0 FSR0
};
#endif
/* Structure to describe FPU registers. */
typedef freg_t fpregset_t[NFPREG];
/* Context to describe whole processor state. */
typedef struct
{
gregset_t gregs;
fpregset_t fpregs;
void *extension;
unsigned long sc_oldmask; /* old sigmask */
} __attribute__((aligned(8))) mcontext_t;
#ifdef __USE_GNU
struct kernel_user_int_regs
{
/* integer registers
* - up to gr[31] mirror pt_regs in the kernel
*/
unsigned long psr; /* Processor Status Register */
unsigned long isr; /* Integer Status Register */
unsigned long ccr; /* Condition Code Register */
unsigned long cccr; /* Condition Code for Conditional Insns Register */
unsigned long lr; /* Link Register */
unsigned long lcr; /* Loop Count Register */
unsigned long pc; /* Program Counter Register */
unsigned long __status; /* exception status */
unsigned long syscallno; /* syscall number or -1 */
unsigned long orig_gr8; /* original syscall arg #1 */
unsigned long gner[2];
union {
unsigned long tbr;
unsigned long gr[64];
};
};
struct kernel_user_fpmedia_regs
{
/* FP/Media registers */
unsigned long fr[64];
unsigned long fner[2];
unsigned long msr[2];
unsigned long acc[8];
unsigned char accg[8];
unsigned long fsr[1];
};
struct kernel_user_context
{
struct kernel_user_int_regs i;
struct kernel_user_fpmedia_regs f;
/* we provide a context extension so that we can save the regs for CPUs that
* implement many more of Fujitsu's lavish register spec
*/
void *extension;
/* This is not part of the kernel's struct user_context, but
rather of the enclosing struct sigcontext, but we add it
here to parallel mcontext_t, just for completeness. */
unsigned long sc_oldmask; /* old sigmask */
} __attribute__((aligned(8)));
/* This union enables alias-safe casts from mcontext_t* to the union
type, that can then be dereferenced as_aliases. */
union kmcontext_t
{
mcontext_t as_regsets;
/* as_aliases is actually missing sc_oldmask, that is present in
mcontext_t. */
struct kernel_user_context as_aliases;
};
#endif
/* Userlevel context. */
typedef struct ucontext
{
unsigned long int uc_flags;
struct ucontext *uc_link;
stack_t uc_stack;
mcontext_t uc_mcontext;
__sigset_t uc_sigmask;
} ucontext_t;
#endif /* sys/ucontext.h */
--- NEW FILE: ptrace.h ---
/* `ptrace' debugger support interface. FRV-Linux version.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _SYS_PTRACE_H
#define _SYS_PTRACE_H 1
#include <features.h>
__BEGIN_DECLS
/* Type of the REQUEST argument to `ptrace.' */
enum __ptrace_request
{
/* Indicate that the process making this request should be traced.
All signals received by this process can be intercepted by its
parent, and its parent can use the other `ptrace' requests. */
PTRACE_TRACEME = 0,
#define PT_TRACE_ME PTRACE_TRACEME
/* Return the word in the process's text space at address ADDR. */
PTRACE_PEEKTEXT = 1,
#define PT_READ_I PTRACE_PEEKTEXT
/* Return the word in the process's data space at address ADDR. */
PTRACE_PEEKDATA = 2,
#define PT_READ_D PTRACE_PEEKDATA
/* Return the word in the process's user area at offset ADDR. */
PTRACE_PEEKUSER = 3,
#define PT_READ_U PTRACE_PEEKUSER
/* Write the word DATA into the process's text space at address ADDR. */
PTRACE_POKETEXT = 4,
#define PT_WRITE_I PTRACE_POKETEXT
/* Write the word DATA into the process's data space at address ADDR. */
PTRACE_POKEDATA = 5,
#define PT_WRITE_D PTRACE_POKEDATA
/* Write the word DATA into the process's user area at offset ADDR. */
PTRACE_POKEUSER = 6,
#define PT_WRITE_U PTRACE_POKEUSER
/* Continue the process. */
PTRACE_CONT = 7,
#define PT_CONTINUE PTRACE_CONT
/* Kill the process. */
PTRACE_KILL = 8,
#define PT_KILL PTRACE_KILL
/* Single step the process.
This is not supported on all machines. */
PTRACE_SINGLESTEP = 9,
#define PT_STEP PTRACE_SINGLESTEP
/* Get all general purpose registers used by a processes.
This is not supported on all machines. */
PTRACE_GETREGS = 12,
#define PT_GETREGS PTRACE_GETREGS
/* Set all general purpose registers used by a processes.
This is not supported on all machines. */
PTRACE_SETREGS = 13,
#define PT_SETREGS PTRACE_SETREGS
/* Get all floating point registers used by a processes.
This is not supported on all machines. */
PTRACE_GETFPREGS = 14,
#define PT_GETFPREGS PTRACE_GETFPREGS
/* Set all floating point registers used by a processes.
This is not supported on all machines. */
PTRACE_SETFPREGS = 15,
#define PT_SETFPREGS PTRACE_SETFPREGS
/* Attach to a process that is already running. */
PTRACE_ATTACH = 16,
#define PT_ATTACH PTRACE_ATTACH
/* Detach from a process attached to with PTRACE_ATTACH. */
PTRACE_DETACH = 17,
#define PT_DETACH PTRACE_DETACH
/* Get all extended floating point registers used by a processes.
This is not supported on all machines. */
PTRACE_GETFPXREGS = 18,
#define PT_GETFPXREGS PTRACE_GETFPXREGS
/* Set all extended floating point registers used by a processes.
This is not supported on all machines. */
PTRACE_SETFPXREGS = 19,
#define PT_SETFPXREGS PTRACE_SETFPXREGS
/* Continue and stop at the next (return from) syscall. */
PTRACE_SYSCALL = 24,
#define PT_SYSCALL PTRACE_SYSCALL
/* Obtain the load map of the main program or the interpreter of the
ptraced process, depending on whether the addr argument is
(void*)0 or (void*)1, respectively. */
PTRACE_GETFDPIC = 31
#define PT_GETFDPIC PTRACE_GETFDPIC
};
#define PTRACE_GETFDPIC_EXEC ((void*)0) /* [addr] request the executable loadmap */
#define PTRACE_GETFDPIC_INTERP ((void*)1) /* [addr] request the interpreter loadmap */
/* Perform process tracing functions. REQUEST is one of the values
above, and determines the action to be taken.
For all requests except PTRACE_TRACEME, PID specifies the process to be
traced.
PID and the other arguments described above for the various requests should
appear (those that are used for the particular request) as:
pid_t PID, void *ADDR, int DATA, void *ADDR2
after REQUEST. */
extern long int ptrace (enum __ptrace_request __request, ...) __THROW;
__END_DECLS
#endif /* _SYS_PTRACE_H */
--- NEW FILE: procfs.h ---
/* Copyright (C) 1996, 1997, 1999, 2000, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _SYS_PROCFS_H
#define _SYS_PROCFS_H 1
/* This is somewhat modelled after the file of the same name on SVR4
systems. It provides a definition of the core file format for ELF
used on Linux. It doesn't have anything to do with the /proc file
system, even though Linux has one.
Anyway, the whole purpose of this file is for GDB and GDB only.
Don't read too much into it. Don't use it for anything other than
GDB unless you know what you are doing. */
#include <features.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/user.h>
__BEGIN_DECLS
/* Type for a general-purpose register. */
typedef unsigned long elf_greg_t;
/* And the whole bunch of them. We could have used `struct
user_regs_struct' directly in the typedef, but tradition says that
the register set is an array, which does have some peculiar
semantics, so leave it that way. */
#define ELF_NGREG (sizeof (struct user_int_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
/* Register set for the floating-point registers. */
typedef struct user_fpmedia_regs elf_fpregset_t;
/* Signal info. */
struct elf_siginfo
{
int si_signo; /* Signal number. */
int si_code; /* Extra code. */
int si_errno; /* Errno. */
};
/* 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. */
struct elf_prstatus
{
struct elf_siginfo pr_info; /* Info associated with signal. */
short int pr_cursig; /* Current signal. */
unsigned long int pr_sigpend; /* Set of pending signals. */
unsigned long int pr_sighold; /* Set of held signals. */
__pid_t pr_pid;
__pid_t pr_ppid;
__pid_t pr_pgrp;
__pid_t pr_sid;
struct timeval pr_utime; /* User time. */
struct timeval pr_stime; /* System time. */
struct timeval pr_cutime; /* Cumulative user time. */
struct timeval pr_cstime; /* Cumulative system time. */
elf_gregset_t pr_reg; /* GP registers. */
int pr_fpvalid; /* True if math copro 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 int pr_flag; /* Flags. */
unsigned short int pr_uid;
unsigned short int pr_gid;
int 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. */
};
/* The rest of this file provides the types for emulation of the
Solaris <proc_service.h> interfaces that should be implemented by
users of libthread_db. */
/* Addresses. */
typedef void *psaddr_t;
/* Register sets. Linux has different names. */
typedef elf_gregset_t prgregset_t;
typedef elf_fpregset_t prfpregset_t;
/* We don't have any differences between processes and threads,
therefore have only one PID type. */
typedef __pid_t lwpid_t;
/* Process status and info. In the end we do provide typedefs for them. */
typedef struct elf_prstatus prstatus_t;
typedef struct elf_prpsinfo prpsinfo_t;
__END_DECLS
#endif /* sys/procfs.h */
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