linux-mips-low.c File Reference

#include "server.h"
#include "linux-low.h"
#include "nat/gdb_ptrace.h"
#include <endian.h>
#include "nat/mips-linux-watch.h"
#include "gdb_proc_service.h"
#include <asm/ptrace.h>

Go to the source code of this file.

Classes
union	mips_register
struct	arch_process_info
struct	arch_lwp_info

Macros
#define	PTRACE_GET_THREAD_AREA   25
#define	mips_num_regs   73
#define	mips_dsp_num_regs   80
#define	DSP_BASE   71
#define	DSP_CONTROL   77
#define	mips_base_regs
#define	mips_dsp_regs
#define	mips_breakpoint_len   4

Functions
void	init_registers_mips_linux (void)
void	init_registers_mips_dsp_linux (void)
void	init_registers_mips64_linux (void)
void	init_registers_mips64_dsp_linux (void)
static const struct target_desc *	mips_read_description (void)
static void	mips_arch_setup (void)
static struct usrregs_info *	get_usrregs_info (void)
static int	mips_cannot_fetch_register (int regno)
static int	mips_cannot_store_register (int regno)
static CORE_ADDR	mips_get_pc (struct regcache *regcache)
static void	mips_set_pc (struct regcache *regcache, CORE_ADDR pc)
static const gdb_byte *	mips_sw_breakpoint_from_kind (int kind, int *size)
static int	mips_breakpoint_at (CORE_ADDR where)
static void	update_watch_registers_callback (thread_info *thread)
static struct arch_process_info *	mips_linux_new_process (void)
static void	mips_linux_delete_process (struct arch_process_info *info)
static void	mips_linux_new_thread (struct lwp_info *lwp)
static void	mips_linux_delete_thread (struct arch_lwp_info *arch_lwp)
static void	mips_add_watchpoint (struct arch_process_info *priv, CORE_ADDR addr, int len, enum target_hw_bp_type watch_type)
static void	mips_linux_new_fork (struct process_info *parent, struct process_info *child)
static void	mips_linux_prepare_to_resume (struct lwp_info *lwp)
static int	mips_supports_z_point_type (char z_type)
static int	mips_insert_point (enum raw_bkpt_type type, CORE_ADDR addr, int len, struct raw_breakpoint *bp)
static int	mips_remove_point (enum raw_bkpt_type type, CORE_ADDR addr, int len, struct raw_breakpoint *bp)
static int	mips_stopped_by_watchpoint (void)
static CORE_ADDR	mips_stopped_data_address (void)
ps_err_e	ps_get_thread_area (struct ps_prochandle *ph, lwpid_t lwpid, int idx, void **base)
static const struct regs_info *	mips_regs_info (void)
void	initialize_low_arch (void)

Variables
const struct target_desc *	tdesc_mips_linux
const struct target_desc *	tdesc_mips_dsp_linux
const struct target_desc *	tdesc_mips64_linux
const struct target_desc *	tdesc_mips64_dsp_linux
static int	mips_regmap [mips_num_regs]
static int	mips_dsp_regmap [mips_dsp_num_regs]
static unsigned char	mips_dsp_regset_bitmap [(mips_dsp_num_regs+7)/8]
static int	have_dsp = -1
static const unsigned int	mips_breakpoint = 0x0005000d
static struct regset_info	mips_regsets []
static struct regsets_info	mips_regsets_info
static struct usrregs_info	mips_dsp_usrregs_info
static struct usrregs_info	mips_usrregs_info
static struct regs_info	dsp_regs_info
static struct regs_info	regs_info
struct linux_target_ops	the_low_target

Macro Definition Documentation

DSP_BASE

#define DSP_BASE   71

Definition at line 63 of file linux-mips-low.c.

DSP_CONTROL

#define DSP_CONTROL   77

Definition at line 64 of file linux-mips-low.c.

Referenced by mips_read_description().

mips_base_regs

#define mips_base_regs

Value:

-1,  1,  2,  3,  4,  5,  6,  7,                 \
  8,  9,  10, 11, 12, 13, 14, 15,                   \
  16, 17, 18, 19, 20, 21, 22, 23,                   \
  24, 25, 26, 27, 28, 29, 30, 31,                   \
                                    \
  -1, MMLO, MMHI, BADVADDR, CAUSE, PC,                  \
                                    \
  FPR_BASE,      FPR_BASE + 1,  FPR_BASE + 2,  FPR_BASE + 3,        \
  FPR_BASE + 4,  FPR_BASE + 5,  FPR_BASE + 6,  FPR_BASE + 7,        \
  FPR_BASE + 8,  FPR_BASE + 9,  FPR_BASE + 10, FPR_BASE + 11,       \
  FPR_BASE + 12, FPR_BASE + 13, FPR_BASE + 14, FPR_BASE + 15,       \
  FPR_BASE + 16, FPR_BASE + 17, FPR_BASE + 18, FPR_BASE + 19,       \
  FPR_BASE + 20, FPR_BASE + 21, FPR_BASE + 22, FPR_BASE + 23,       \
  FPR_BASE + 24, FPR_BASE + 25, FPR_BASE + 26, FPR_BASE + 27,       \
  FPR_BASE + 28, FPR_BASE + 29, FPR_BASE + 30, FPR_BASE + 31,       \
  FPC_CSR, FPC_EIR

Definition at line 78 of file linux-mips-low.c.

mips_breakpoint_len

#define mips_breakpoint_len   4

Definition at line 267 of file linux-mips-low.c.

Referenced by mips_sw_breakpoint_from_kind().

mips_dsp_num_regs

#define mips_dsp_num_regs   80

Definition at line 58 of file linux-mips-low.c.

mips_dsp_regs

#define mips_dsp_regs

Value:

DSP_BASE,      DSP_BASE + 1,  DSP_BASE + 2,  DSP_BASE + 3,      \
  DSP_BASE + 4,  DSP_BASE + 5,                      \
  DSP_CONTROL

Definition at line 96 of file linux-mips-low.c.

mips_num_regs

#define mips_num_regs   73

Definition at line 57 of file linux-mips-low.c.

PTRACE_GET_THREAD_AREA

#define PTRACE_GET_THREAD_AREA   25

Definition at line 50 of file linux-mips-low.c.

Referenced by ps_get_thread_area().

Function Documentation

get_usrregs_info()

static struct usrregs_info* get_usrregs_info ( void  )

static

Definition at line 157 of file linux-mips-low.c.

References linux_target_ops::regs_info, the_low_target, and regs_info::usrregs.

Referenced by mips_cannot_fetch_register(), and mips_cannot_store_register().

init_registers_mips64_dsp_linux()

void init_registers_mips64_dsp_linux

(

void

)

Referenced by initialize_low_arch().

init_registers_mips64_linux()

void init_registers_mips64_linux

(

void

)

Referenced by initialize_low_arch().

init_registers_mips_dsp_linux()

void init_registers_mips_dsp_linux

(

void

)

Referenced by initialize_low_arch().

init_registers_mips_linux()

void init_registers_mips_linux

(

void

)

Referenced by initialize_low_arch().

initialize_low_arch()

void initialize_low_arch

(

void

)

Definition at line 907 of file linux-mips-low.c.

References init_registers_mips64_dsp_linux(), init_registers_mips64_linux(), init_registers_mips_dsp_linux(), init_registers_mips_linux(), and mips_regsets_info.

mips_add_watchpoint()

static void mips_add_watchpoint ( struct arch_process_info *  priv, CORE_ADDR  addr, int  len, enum target_hw_bp_type  watch_type  )

static

Definition at line 354 of file linux-mips-low.c.

References mips_watchpoint::addr, arch_process_info::current_watches, mips_watchpoint::len, mips_watchpoint::next, mips_watchpoint::type, and XNEW.

Referenced by mips_insert_point(), and mips_linux_new_fork().

mips_arch_setup()

static void mips_arch_setup ( void  )

static

Definition at line 151 of file linux-mips-low.c.

References current_process(), mips_read_description(), and process_info::tdesc.

mips_breakpoint_at()

static int mips_breakpoint_at ( CORE_ADDR  where )

static

Definition at line 279 of file linux-mips-low.c.

References mips_breakpoint, target_ops::read_memory, and the_target.

mips_cannot_fetch_register()

static int mips_cannot_fetch_register ( int  regno )

static

Definition at line 205 of file linux-mips-low.c.

References current_process(), find_regno(), get_usrregs_info(), and process_info::tdesc.

mips_cannot_store_register()

static int mips_cannot_store_register ( int  regno )

static

Definition at line 221 of file linux-mips-low.c.

References current_process(), find_regno(), get_usrregs_info(), and process_info::tdesc.

mips_get_pc()

static CORE_ADDR mips_get_pc ( struct regcache *  regcache )

static

Definition at line 246 of file linux-mips-low.c.

References mips_register::buf, collect_register_by_name(), mips_register::reg32, mips_register::reg64, register_size(), and regcache::tdesc.

mips_insert_point()

static int mips_insert_point ( enum raw_bkpt_type  type, CORE_ADDR  addr, int  len, struct raw_breakpoint *  bp  )

static

Definition at line 460 of file linux-mips-low.c.

References process_info_private::arch_private, current_process(), current_thread, arch_process_info::current_watches, for_each_thread(), lwpid_of(), mips_add_watchpoint(), mips_linux_read_watch_registers(), mips_linux_watch_populate_regs(), mips_linux_watch_try_one_watch(), mips_linux_watch_type_to_irw(), process_info::pid, process_info::priv, raw_bkpt_type_to_target_hw_bp_type(), update_watch_registers_callback(), arch_process_info::watch_mirror, arch_process_info::watch_readback, and arch_process_info::watch_readback_valid.

mips_linux_delete_process()

static void mips_linux_delete_process ( struct arch_process_info *  info )

static

Definition at line 324 of file linux-mips-low.c.

References xfree().

mips_linux_delete_thread()

static void mips_linux_delete_thread ( struct arch_lwp_info *  arch_lwp )

static

Definition at line 346 of file linux-mips-low.c.

References xfree().

mips_linux_new_fork()

static void mips_linux_new_fork ( struct process_info *  parent, struct process_info *  child  )

static

Definition at line 375 of file linux-mips-low.c.

References mips_watchpoint::addr, process_info_private::arch_private, arch_process_info::current_watches, gdb_assert, mips_watchpoint::len, mips_add_watchpoint(), mips_watchpoint::next, process_info::priv, mips_watchpoint::type, arch_process_info::watch_mirror, arch_process_info::watch_readback, and arch_process_info::watch_readback_valid.

mips_linux_new_process()

static struct arch_process_info* mips_linux_new_process ( void  )

static

Definition at line 313 of file linux-mips-low.c.

References XCNEW.

mips_linux_new_thread()

static void mips_linux_new_thread ( struct lwp_info *  lwp )

static

Definition at line 334 of file linux-mips-low.c.

References lwp_info::arch_private, arch_lwp_info::watch_registers_changed, and XCNEW.

mips_linux_prepare_to_resume()

static void mips_linux_prepare_to_resume ( struct lwp_info *  lwp )

static

Definition at line 418 of file linux-mips-low.c.

References process_info_private::arch_private, lwp_info::arch_private, find_process_pid(), get_lwp_thread, mips_linux_watch_get_num_valid(), perror_with_name(), process_info::priv, ptid_get_lwp(), ptid_get_pid(), ptid_of(), ptrace(), PTRACE_SET_WATCH_REGS, arch_process_info::watch_mirror, and arch_lwp_info::watch_registers_changed.

mips_read_description()

static const struct target_desc* mips_read_description ( void  )

static

Definition at line 125 of file linux-mips-low.c.

References current_thread, DSP_CONTROL, errno, have_dsp, lwpid_of(), perror_with_name(), ptrace(), tdesc_mips_dsp_linux, and tdesc_mips_linux.

Referenced by mips_arch_setup().

mips_regs_info()

static const struct regs_info* mips_regs_info ( void  )

static

Definition at line 869 of file linux-mips-low.c.

References dsp_regs_info, have_dsp, and regs_info.

mips_remove_point()

static int mips_remove_point ( enum raw_bkpt_type  type, CORE_ADDR  addr, int  len, struct raw_breakpoint *  bp  )

static

Definition at line 505 of file linux-mips-low.c.

References mips_watchpoint::addr, process_info_private::arch_private, current_process(), arch_process_info::current_watches, for_each_thread(), free(), gdb_assert, mips_watchpoint::len, mips_linux_watch_populate_regs(), mips_watchpoint::next, process_info::pid, process_info::priv, raw_bkpt_type_to_target_hw_bp_type(), mips_watchpoint::type, update_watch_registers_callback(), arch_process_info::watch_mirror, arch_process_info::watch_readback, and arch_process_info::watch_readback_valid.

mips_set_pc()

static void mips_set_pc ( struct regcache *  regcache, CORE_ADDR  pc  )

static

Definition at line 254 of file linux-mips-low.c.

References mips_register::buf, mips_register::reg32, mips_register::reg64, register_size(), supply_register_by_name(), and regcache::tdesc.

mips_stopped_by_watchpoint()

static int mips_stopped_by_watchpoint ( void  )

static

Definition at line 555 of file linux-mips-low.c.

References process_info_private::arch_private, current_process(), current_thread, lwpid_of(), MAX_DEBUG_REGISTER, mips_linux_read_watch_registers(), mips_linux_watch_get_num_valid(), mips_linux_watch_get_watchhi(), num_valid, process_info::priv, R_MASK, W_MASK, arch_process_info::watch_readback, and arch_process_info::watch_readback_valid.

mips_stopped_data_address()

static CORE_ADDR mips_stopped_data_address ( void  )

static

Definition at line 583 of file linux-mips-low.c.

References mips_watchpoint::addr, process_info_private::arch_private, current_process(), current_thread, arch_process_info::current_watches, IRW_MASK, mips_watchpoint::len, lwpid_of(), MAX_DEBUG_REGISTER, mips_linux_read_watch_registers(), mips_linux_watch_get_num_valid(), mips_linux_watch_get_watchhi(), mips_linux_watch_get_watchlo(), mips_linux_watch_type_to_irw(), mips_watchpoint::next, num_valid, process_info::priv, R_MASK, mips_watchpoint::type, W_MASK, arch_process_info::watch_readback, and arch_process_info::watch_readback_valid.

mips_supports_z_point_type()

static int mips_supports_z_point_type ( char  z_type )

static

Definition at line 443 of file linux-mips-low.c.

References Z_PACKET_ACCESS_WP, Z_PACKET_READ_WP, and Z_PACKET_WRITE_WP.

mips_sw_breakpoint_from_kind()

static const gdb_byte* mips_sw_breakpoint_from_kind ( int  kind, int *  size  )

static

Definition at line 272 of file linux-mips-low.c.

References mips_breakpoint, and mips_breakpoint_len.

ps_get_thread_area()

ps_err_e ps_get_thread_area	(	struct ps_prochandle *	ph,
		lwpid_t	lwpid,
		int	idx,
		void **	base
	)

Definition at line 644 of file linux-mips-low.c.

References PS_ERR, PS_OK, ptrace(), and PTRACE_GET_THREAD_AREA.

update_watch_registers_callback()

static void update_watch_registers_callback ( thread_info *  thread )

static

Definition at line 295 of file linux-mips-low.c.

References lwp_info::arch_private, get_thread_lwp, linux_stop_lwp(), lwp_info::stopped, lwp_info::thread, and arch_lwp_info::watch_registers_changed.

Referenced by mips_insert_point(), and mips_remove_point().

Variable Documentation

dsp_regs_info

struct regs_info dsp_regs_info

static

Initial value:

=
  {
    mips_dsp_regset_bitmap,
    &mips_dsp_usrregs_info,
    &mips_regsets_info
  }

Definition at line 854 of file linux-mips-low.c.

Referenced by mips_regs_info().

have_dsp

int have_dsp = -1

static

Definition at line 119 of file linux-mips-low.c.

Referenced by mips_read_description(), and mips_regs_info().

mips_breakpoint

const unsigned int mips_breakpoint = 0x0005000d

static

Definition at line 266 of file linux-mips-low.c.

Referenced by mips_breakpoint_at(), and mips_sw_breakpoint_from_kind().

mips_dsp_regmap

int mips_dsp_regmap[mips_dsp_num_regs]

static

Initial value:

= {
  mips_base_regs,
  mips_dsp_regs,
  0
}

Definition at line 106 of file linux-mips-low.c.

mips_dsp_regset_bitmap

unsigned char mips_dsp_regset_bitmap[(mips_dsp_num_regs+7)/8]

static

Initial value:

= {
  0xfe, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0x80
}

Definition at line 115 of file linux-mips-low.c.

mips_dsp_usrregs_info

struct usrregs_info mips_dsp_usrregs_info

static

Initial value:

=
  {
    mips_dsp_num_regs,
    mips_dsp_regmap,
  }

Definition at line 842 of file linux-mips-low.c.

mips_regmap

int mips_regmap[mips_num_regs]

static

Initial value:

= {
  mips_base_regs,
  0
}

Definition at line 101 of file linux-mips-low.c.

mips_regsets

struct regset_info mips_regsets[]

static

Initial value:

= {





 
  NULL_REGSET
}

Definition at line 825 of file linux-mips-low.c.

mips_regsets_info

struct regsets_info mips_regsets_info

static

Initial value:

=
  {
    mips_regsets, 
    0, 
    NULL, 
  }

Definition at line 835 of file linux-mips-low.c.

Referenced by initialize_low_arch().

mips_usrregs_info

struct usrregs_info mips_usrregs_info

static

Initial value:

=
  {
    mips_num_regs,
    mips_regmap,
  }

Definition at line 848 of file linux-mips-low.c.

regs_info

struct regs_info regs_info

static

Initial value:

=
  {
    NULL, 
    &mips_usrregs_info,
    &mips_regsets_info
  }

Definition at line 861 of file linux-mips-low.c.

Referenced by mips_regs_info().

tdesc_mips64_dsp_linux

const struct target_desc* tdesc_mips64_dsp_linux

tdesc_mips64_linux

const struct target_desc* tdesc_mips64_linux

tdesc_mips_dsp_linux

const struct target_desc* tdesc_mips_dsp_linux

Referenced by mips_read_description().

tdesc_mips_linux

const struct target_desc* tdesc_mips_linux

Referenced by mips_read_description().

the_low_target

struct linux_target_ops the_low_target

Initial value:

= {
  mips_arch_setup,
  mips_regs_info,
  mips_cannot_fetch_register,
  mips_cannot_store_register,
  NULL, 
  mips_get_pc,
  mips_set_pc,
  NULL, 
  mips_sw_breakpoint_from_kind,
  NULL, 
  0,
  mips_breakpoint_at,
  mips_supports_z_point_type,
  mips_insert_point,
  mips_remove_point,
  mips_stopped_by_watchpoint,
  mips_stopped_data_address,
  NULL,
  NULL,
  NULL, 
  mips_linux_new_process,
  mips_linux_delete_process,
  mips_linux_new_thread,
  mips_linux_delete_thread,
  mips_linux_new_fork,
  mips_linux_prepare_to_resume
}

Definition at line 877 of file linux-mips-low.c.

Referenced by get_usrregs_info().