diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/ptrace.c | 112 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/sys/ptrace.h | 135 |
2 files changed, 247 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/ptrace.c b/sysdeps/unix/sysv/linux/mips/ptrace.c new file mode 100644 index 0000000000..b67fe83071 --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/ptrace.c @@ -0,0 +1,112 @@ +/* Copyright (C) 1995, 1996, 1997, 1998, 2000, 2002, 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. */ + +#include <errno.h> +#include <sys/types.h> +#include <sys/ptrace.h> +#include <sys/user.h> +#include <stdarg.h> + +#include <sysdep.h> +#include <sys/syscall.h> +#include <bp-checks.h> + +#if defined _ABIN32 && _MIPS_SIM == _ABIN32 +__extension__ typedef long long int reg_type; +#else +typedef long int reg_type; +#endif + +extern reg_type __syscall_ptrace (int, pid_t, void *__unbounded, + reg_type __unbounded); + +reg_type +ptrace (enum __ptrace_request request, ...) +{ + reg_type res, ret; + va_list ap; + pid_t pid; + void *addr; + reg_type data; + + va_start (ap, request); + pid = va_arg (ap, pid_t); + addr = va_arg (ap, void *); + data = va_arg (ap, reg_type); + va_end (ap); + + if (request > 0 && request < 4) + data = &ret; + +#if __BOUNDED_POINTERS__ + switch (request) + { + case PTRACE_PEEKTEXT: + case PTRACE_PEEKDATA: + case PTRACE_PEEKUSER: + case PTRACE_POKETEXT: + case PTRACE_POKEDATA: + case PTRACE_POKEUSER: + (void) CHECK_1 ((int *) addr); + (void) CHECK_1 ((int *) data); + break; + + case PTRACE_GETREGS: + case PTRACE_SETREGS: + /* We don't know the size of data, so the best we can do is ensure + that `data' is valid for at least one word. */ + (void) CHECK_1 ((int *) data); + break; + + case PTRACE_GETFPREGS: + case PTRACE_SETFPREGS: + /* We don't know the size of data, so the best we can do is ensure + that `data' is valid for at least one word. */ + (void) CHECK_1 ((int *) data); + break; + + case PTRACE_GETFPXREGS: + case PTRACE_SETFPXREGS: + /* We don't know the size of data, so the best we can do is ensure + that `data' is valid for at least one word. */ + (void) CHECK_1 ((int *) data); + break; + + case PTRACE_TRACEME: + case PTRACE_CONT: + case PTRACE_KILL: + case PTRACE_SINGLESTEP: + case PTRACE_ATTACH: + case PTRACE_DETACH: + case PTRACE_SYSCALL: + /* Neither `data' nor `addr' needs any checks. */ + break; + }; +#endif + + res = INLINE_SYSCALL (ptrace, 4, request, pid, + __ptrvalue (addr), __ptrvalue (data)); + if (res >= 0 && request > 0 && request < 4) + { + __set_errno (0); + return ret; + } + + return res; +} diff --git a/sysdeps/unix/sysv/linux/mips/sys/ptrace.h b/sysdeps/unix/sysv/linux/mips/sys/ptrace.h new file mode 100644 index 0000000000..a8e4a476ec --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/sys/ptrace.h @@ -0,0 +1,135 @@ +/* `ptrace' debugger support interface. Linux version. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 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_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 +}; + +/* 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. */ +#if defined _ABIN32 && _MIPS_SIM == _ABIN32 +__extension__ extern long long int ptrace + (enum __ptrace_request __request, ...) __THROW; +#else +extern long int ptrace (enum __ptrace_request __request, ...) __THROW; +#endif + +__END_DECLS + +#endif /* _SYS_PTRACE_H */ |