GDBserver: /tmp/gdb-8.1/gdb/gdbserver/spu-low.c File Reference

GDBserver

gdbserver

#include "server.h"
#include "gdb_wait.h"
#include <sys/ptrace.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/syscall.h>
#include "filestuff.h"
#include "hostio.h"
#include "nat/fork-inferior.h"

Go to the source code of this file.

Macros
#define	__WNOTHREAD

#define	PTRACE_TYPE_RET long

#define	PTRACE_TYPE_ARG3 long

#define	SPU_NUM_REGS 130

#define	SPU_NUM_CORE_REGS 128

#define	SPU_ID_REGNUM 128

#define	SPU_PC_REGNUM 129

#define	INSTR_SC 0x44000002

#define	NR_spu_run 0x0116

Functions
void	init_registers_spu (void)

static CORE_ADDR	fetch_ppc_register (int regno)

static int	fetch_ppc_memory_1 (int tid, CORE_ADDR memaddr, PTRACE_TYPE_RET *word)

static int	store_ppc_memory_1 (int tid, CORE_ADDR memaddr, PTRACE_TYPE_RET word)

static int	fetch_ppc_memory (CORE_ADDR memaddr, char *myaddr, int len)

static int	store_ppc_memory (CORE_ADDR memaddr, char *myaddr, int len)

static int	parse_spufs_run (int fd, CORE_ADDR addr)

static int	spu_proc_xfer_spu (const char annex, unsigned char readbuf, const unsigned char *writebuf, CORE_ADDR offset, int len)

static void	spu_ptrace_fun ()

static int	spu_create_inferior (const char program, const std::vector< char > &program_args)

int	spu_attach (unsigned long pid)

static int	spu_kill (int pid)

static int	spu_detach (int pid)

static void	spu_mourn (struct process_info *process)

static void	spu_join (int pid)

static int	spu_thread_alive (ptid_t ptid)

static void	spu_resume (struct thread_resume *resume_info, size_t n)

static ptid_t	spu_wait (ptid_t ptid, struct target_waitstatus *ourstatus, int options)

static void	spu_fetch_registers (struct regcache *regcache, int regno)

static void	spu_store_registers (struct regcache *regcache, int regno)

static int	spu_read_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)

static int	spu_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len)

static void	spu_look_up_symbols (void)

static void	spu_request_interrupt (void)

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

void	initialize_low (void)

Variables
int	using_threads = 0

const struct target_desc *	tdesc_spu

static const gdb_byte	breakpoint [] = { 0x00, 0x00, 0x3f, 0xff }

static struct target_ops	spu_target_ops

Macro Definition Documentation

◆ __WNOTHREAD

#define __WNOTHREAD

Value:

0x20000000 /* Don't wait on children of other

threads in this group */

Definition at line 34 of file spu-low.c.

Referenced by spu_wait().

◆ INSTR_SC

#define INSTR_SC 0x44000002

Definition at line 50 of file spu-low.c.

Referenced by parse_spufs_run().

◆ NR_spu_run

#define NR_spu_run 0x0116

Definition at line 51 of file spu-low.c.

Referenced by parse_spufs_run().

◆ PTRACE_TYPE_ARG3

#define PTRACE_TYPE_ARG3 long

Definition at line 39 of file spu-low.c.

Referenced by fetch_ppc_memory_1(), fetch_ppc_register(), spu_wait(), and store_ppc_memory_1().

◆ PTRACE_TYPE_RET

#define PTRACE_TYPE_RET long

Definition at line 38 of file spu-low.c.

Referenced by fetch_ppc_memory(), fetch_ppc_register(), and store_ppc_memory().

◆ SPU_ID_REGNUM

#define SPU_ID_REGNUM 128

Definition at line 46 of file spu-low.c.

Referenced by spu_fetch_registers().

◆ SPU_NUM_CORE_REGS

#define SPU_NUM_CORE_REGS 128

Definition at line 43 of file spu-low.c.

Referenced by spu_fetch_registers(), and spu_store_registers().

◆ SPU_NUM_REGS

#define SPU_NUM_REGS 130

Definition at line 42 of file spu-low.c.

◆ SPU_PC_REGNUM

#define SPU_PC_REGNUM 129

Definition at line 47 of file spu-low.c.

Referenced by spu_fetch_registers(), and spu_store_registers().

Function Documentation

◆ fetch_ppc_memory()

static int fetch_ppc_memory	(	CORE_ADDR	memaddr,
		char *	myaddr,
		int	len
	)

static

Definition at line 145 of file spu-low.c.

References current_ptid, fetch_ppc_memory_1(), ptid_get_lwp(), and PTRACE_TYPE_RET.

Referenced by parse_spufs_run(), and spu_fetch_registers().

◆ fetch_ppc_memory_1()

static int fetch_ppc_memory_1	(	int	tid,
		CORE_ADDR	memaddr,
		PTRACE_TYPE_RET *	word
	)

static

Definition at line 105 of file spu-low.c.

References errno, PT_READ_I, ptrace(), PTRACE_TYPE_ARG1, and PTRACE_TYPE_ARG3.

Referenced by fetch_ppc_memory(), and store_ppc_memory().

◆ fetch_ppc_register()

static CORE_ADDR fetch_ppc_register ( int regno )

static

Definition at line 65 of file spu-low.c.

References current_ptid, errno, perror_with_name(), PT_READ_U, ptid_get_lwp(), ptrace(), PTRACE_TYPE_ARG1, PTRACE_TYPE_ARG3, and PTRACE_TYPE_RET.

Referenced by parse_spufs_run().

◆ init_registers_spu()

void init_registers_spu ( void )

Referenced by initialize_low().

◆ initialize_low()

void initialize_low ( void )

Definition at line 735 of file spu-low.c.

References init_registers_spu(), set_target_ops(), and spu_target_ops.

◆ parse_spufs_run()

static int parse_spufs_run	(	int *	fd,
		CORE_ADDR *	addr
	)

static

Definition at line 208 of file spu-low.c.

References fetch_ppc_memory(), fetch_ppc_register(), INSTR_SC, and NR_spu_run.

Referenced by spu_fetch_registers(), spu_read_memory(), spu_store_registers(), spu_wait(), and spu_write_memory().

◆ spu_attach()

int spu_attach ( unsigned long pid )

Definition at line 307 of file spu-low.c.

References add_process(), add_thread(), errno, process_info::pid, ptid_build(), ptrace(), strerror(), process_info::tdesc, and tdesc_spu.

◆ spu_create_inferior()

static int spu_create_inferior	(	const char *	program,
		const std::vector< char *> &	program_args
	)

static

Definition at line 282 of file spu-low.c.

References add_process(), add_thread(), gdb_environ::envp(), fork_inferior(), get_environ(), process_info::pid, post_fork_inferior(), program_args, ptid_build(), spu_ptrace_fun(), string, stringify_argv(), process_info::tdesc, and tdesc_spu.

◆ spu_detach()

static int spu_detach ( int pid )

static

Definition at line 351 of file spu-low.c.

References clear_inferiors(), find_process_pid(), process_info::pid, ptrace(), and remove_process().

◆ spu_fetch_registers()

static void spu_fetch_registers	(	struct regcache *	regcache,
		int	regno
	)

static

Definition at line 487 of file spu-low.c.

References fetch_ppc_memory(), parse_spufs_run(), SPU_ID_REGNUM, SPU_NUM_CORE_REGS, SPU_PC_REGNUM, spu_proc_xfer_spu(), and supply_register().

◆ spu_join()

static void spu_join ( int pid )

static

Definition at line 371 of file spu-low.c.

References errno, process_info::pid, WIFEXITED, and WIFSIGNALED.

◆ spu_kill()

static int spu_kill ( int pid )

static

Definition at line 329 of file spu-low.c.

References clear_inferiors(), errno, find_process_pid(), process_info::pid, ptrace(), remove_process(), WIFEXITED, and WIFSIGNALED.

◆ spu_look_up_symbols()

static void spu_look_up_symbols ( void )

static

Definition at line 636 of file spu-low.c.

◆ spu_mourn()

static void spu_mourn ( struct process_info * process )

static

Definition at line 365 of file spu-low.c.

References remove_process().

◆ spu_proc_xfer_spu()

static int spu_proc_xfer_spu	(	const char *	annex,
		unsigned char *	readbuf,
		const unsigned char *	writebuf,
		CORE_ADDR	offset,
		int	len
	)

static

Definition at line 233 of file spu-low.c.

References current_ptid, offset, and ptid_get_lwp().

Referenced by spu_fetch_registers(), spu_read_memory(), spu_store_registers(), and spu_write_memory().

◆ spu_ptrace_fun()

static void spu_ptrace_fun ( )

static

Definition at line 269 of file spu-low.c.

References ptrace(), and trace_start_error_with_name().

Referenced by spu_create_inferior().

◆ spu_read_memory()

static int spu_read_memory	(	CORE_ADDR	memaddr,
		unsigned char *	myaddr,
		int	len
	)

static

Definition at line 563 of file spu-low.c.

References memset(), parse_spufs_run(), and spu_proc_xfer_spu().

◆ spu_request_interrupt()

static void spu_request_interrupt ( void )

static

Definition at line 642 of file spu-low.c.

References get_first_thread(), and lwpid_of().

◆ spu_resume()

static void spu_resume	(	struct thread_resume *	resume_info,
		size_t	n
	)

static

Definition at line 391 of file spu-low.c.

References errno, get_first_thread(), minus_one_ptid, perror_with_name(), ptid_equal(), ptid_get_lwp(), ptid_of(), ptrace(), and regcache_invalidate().

◆ spu_store_registers()

static void spu_store_registers	(	struct regcache *	regcache,
		int	regno
	)

static

Definition at line 524 of file spu-low.c.

References collect_register(), parse_spufs_run(), SPU_NUM_CORE_REGS, SPU_PC_REGNUM, spu_proc_xfer_spu(), and store_ppc_memory().

◆ spu_sw_breakpoint_from_kind()

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

static

Definition at line 652 of file spu-low.c.

References breakpoint.

◆ spu_thread_alive()

static int spu_thread_alive ( ptid_t ptid )

static

Definition at line 384 of file spu-low.c.

References current_ptid, and ptid_equal().

◆ spu_wait()

static ptid_t spu_wait	(	ptid_t	ptid,
		struct target_waitstatus *	ourstatus,
		int	options
	)

static

Definition at line 419 of file spu-low.c.

References __WALL, __WNOTHREAD, clear_inferiors(), errno, gdb_signal_from_host(), parse_spufs_run(), perror_with_name(), pid_to_ptid(), PT_SYSCALL, ptid_build(), ptid_get_pid(), ptrace(), PTRACE_TYPE_ARG3, server_waiting, WEXITSTATUS, WIFEXITED, WIFSTOPPED, WNOHANG, WSTOPSIG, and WTERMSIG.

◆ spu_write_memory()

static int spu_write_memory	(	CORE_ADDR	memaddr,
		const unsigned char *	myaddr,
		int	len
	)

static

Definition at line 601 of file spu-low.c.

References memset(), parse_spufs_run(), and spu_proc_xfer_spu().

◆ store_ppc_memory()

static int store_ppc_memory	(	CORE_ADDR	memaddr,
		char *	myaddr,
		int	len
	)

static

Definition at line 170 of file spu-low.c.

References current_ptid, fetch_ppc_memory_1(), ptid_get_lwp(), PTRACE_TYPE_RET, and store_ppc_memory_1().

Referenced by spu_store_registers().

◆ store_ppc_memory_1()

static int store_ppc_memory_1	(	int	tid,
		CORE_ADDR	memaddr,
		PTRACE_TYPE_RET	word
	)

static

Definition at line 125 of file spu-low.c.

References errno, PT_WRITE_D, ptrace(), PTRACE_TYPE_ARG1, and PTRACE_TYPE_ARG3.

Referenced by store_ppc_memory().

Variable Documentation

◆ breakpoint

const gdb_byte breakpoint[] = { 0x00, 0x00, 0x3f, 0xff }

static

Definition at line 61 of file spu-low.c.

Referenced by spu_sw_breakpoint_from_kind().

◆ spu_target_ops

struct target_ops spu_target_ops

static

Definition at line 658 of file spu-low.c.

Referenced by initialize_low().

◆ tdesc_spu

const struct target_desc* tdesc_spu

Referenced by spu_attach(), and spu_create_inferior().

◆ using_threads

int using_threads = 0

Definition at line 54 of file spu-low.c.