X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fremote-fileio.c;h=bc7c71ffdd47134c0441eee22d556883c9c0b5db;hb=e76b224615f88255a3fd20d613983dde6cc240b3;hp=5f3aac2281df331d752368bd0cf8bce8b8903afe;hpb=61baf725eca99af2569262d10aca03dcde2698f6;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/remote-fileio.c b/gdb/remote-fileio.c index 5f3aac2281..bc7c71ffdd 100644 --- a/gdb/remote-fileio.c +++ b/gdb/remote-fileio.c @@ -1,6 +1,6 @@ /* Remote File-I/O communications - Copyright (C) 2003-2017 Free Software Foundation, Inc. + Copyright (C) 2003-2019 Free Software Foundation, Inc. This file is part of GDB. @@ -22,16 +22,16 @@ #include "defs.h" #include "gdbcmd.h" #include "remote.h" -#include "gdb_wait.h" +#include "gdbsupport/gdb_wait.h" #include #include "remote-fileio.h" #include "event-loop.h" #include "target.h" #include "filenames.h" -#include "filestuff.h" +#include "gdbsupport/filestuff.h" #include -#include "gdb_sys_time.h" +#include "gdbsupport/gdb_sys_time.h" #ifdef __CYGWIN__ #include /* For cygwin_conv_path. */ #endif @@ -313,7 +313,7 @@ remote_fileio_quit_handler (void) } static void -remote_fileio_reply (int retcode, int error) +remote_fileio_reply (remote_target *remote, int retcode, int error) { char buf[32]; int ctrl_c = check_quit_flag (); @@ -339,36 +339,36 @@ remote_fileio_reply (int retcode, int error) strcat (buf, ",C"); } quit_handler = remote_fileio_o_quit_handler; - putpkt (buf); + putpkt (remote, buf); } static void -remote_fileio_ioerror (void) +remote_fileio_ioerror (remote_target *remote) { - remote_fileio_reply (-1, FILEIO_EIO); + remote_fileio_reply (remote, -1, FILEIO_EIO); } static void -remote_fileio_badfd (void) +remote_fileio_badfd (remote_target *remote) { - remote_fileio_reply (-1, FILEIO_EBADF); + remote_fileio_reply (remote, -1, FILEIO_EBADF); } static void -remote_fileio_return_errno (int retcode) +remote_fileio_return_errno (remote_target *remote, int retcode) { - remote_fileio_reply (retcode, retcode < 0 + remote_fileio_reply (remote, retcode, retcode < 0 ? host_to_fileio_error (errno) : 0); } static void -remote_fileio_return_success (int retcode) +remote_fileio_return_success (remote_target *remote, int retcode) { - remote_fileio_reply (retcode, 0); + remote_fileio_reply (remote, retcode, 0); } static void -remote_fileio_func_open (char *buf) +remote_fileio_func_open (remote_target *remote, char *buf) { CORE_ADDR ptrval; int length; @@ -381,20 +381,20 @@ remote_fileio_func_open (char *buf) /* 1. Parameter: Ptr to pathname / length incl. trailing zero. */ if (remote_fileio_extract_ptr_w_len (&buf, &ptrval, &length)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } /* 2. Parameter: open flags */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } flags = remote_fileio_oflags_to_host (num); /* 3. Parameter: open mode */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } mode = remote_fileio_mode_to_host (num, 1); @@ -403,7 +403,7 @@ remote_fileio_func_open (char *buf) pathname = (char *) alloca (length); if (target_read_memory (ptrval, (gdb_byte *) pathname, length) != 0) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -414,13 +414,13 @@ remote_fileio_func_open (char *buf) { if (!S_ISREG (st.st_mode) && !S_ISDIR (st.st_mode)) { - remote_fileio_reply (-1, FILEIO_ENODEV); + remote_fileio_reply (remote, -1, FILEIO_ENODEV); return; } if (S_ISDIR (st.st_mode) && ((flags & O_WRONLY) == O_WRONLY || (flags & O_RDWR) == O_RDWR)) { - remote_fileio_reply (-1, FILEIO_EISDIR); + remote_fileio_reply (remote, -1, FILEIO_EISDIR); return; } } @@ -428,16 +428,16 @@ remote_fileio_func_open (char *buf) fd = gdb_open_cloexec (pathname, flags, mode); if (fd < 0) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } fd = remote_fileio_fd_to_targetfd (fd); - remote_fileio_return_success (fd); + remote_fileio_return_success (remote, fd); } static void -remote_fileio_func_close (char *buf) +remote_fileio_func_close (remote_target *remote, char *buf) { long num; int fd; @@ -445,24 +445,24 @@ remote_fileio_func_close (char *buf) /* Parameter: file descriptor */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } fd = remote_fileio_map_fd ((int) num); if (fd == FIO_FD_INVALID) { - remote_fileio_badfd (); + remote_fileio_badfd (remote); return; } if (fd != FIO_FD_CONSOLE_IN && fd != FIO_FD_CONSOLE_OUT && close (fd)) - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); remote_fileio_close_target_fd ((int) num); - remote_fileio_return_success (0); + remote_fileio_return_success (remote, 0); } static void -remote_fileio_func_read (char *buf) +remote_fileio_func_read (remote_target *remote, char *buf) { long target_fd, num; LONGEST lnum; @@ -475,26 +475,26 @@ remote_fileio_func_read (char *buf) /* 1. Parameter: file descriptor */ if (remote_fileio_extract_int (&buf, &target_fd)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } fd = remote_fileio_map_fd ((int) target_fd); if (fd == FIO_FD_INVALID) { - remote_fileio_badfd (); + remote_fileio_badfd (remote); return; } /* 2. Parameter: buffer pointer */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } ptrval = (CORE_ADDR) lnum; /* 3. Parameter: buffer length */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } length = (size_t) num; @@ -502,7 +502,7 @@ remote_fileio_func_read (char *buf) switch (fd) { case FIO_FD_CONSOLE_OUT: - remote_fileio_badfd (); + remote_fileio_badfd (remote); return; case FIO_FD_CONSOLE_IN: { @@ -580,15 +580,15 @@ remote_fileio_func_read (char *buf) } if (ret < 0) - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); else - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); xfree (buffer); } static void -remote_fileio_func_write (char *buf) +remote_fileio_func_write (remote_target *remote, char *buf) { long target_fd, num; LONGEST lnum; @@ -600,26 +600,26 @@ remote_fileio_func_write (char *buf) /* 1. Parameter: file descriptor */ if (remote_fileio_extract_int (&buf, &target_fd)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } fd = remote_fileio_map_fd ((int) target_fd); if (fd == FIO_FD_INVALID) { - remote_fileio_badfd (); + remote_fileio_badfd (remote); return; } /* 2. Parameter: buffer pointer */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } ptrval = (CORE_ADDR) lnum; /* 3. Parameter: buffer length */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } length = (size_t) num; @@ -628,14 +628,14 @@ remote_fileio_func_write (char *buf) if (target_read_memory (ptrval, buffer, length) != 0) { xfree (buffer); - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } switch (fd) { case FIO_FD_CONSOLE_IN: - remote_fileio_badfd (); + remote_fileio_badfd (remote); xfree (buffer); return; case FIO_FD_CONSOLE_OUT: @@ -653,15 +653,15 @@ remote_fileio_func_write (char *buf) } if (ret < 0) - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); else - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); xfree (buffer); } static void -remote_fileio_func_lseek (char *buf) +remote_fileio_func_lseek (remote_target *remote, char *buf) { long num; LONGEST lnum; @@ -671,50 +671,50 @@ remote_fileio_func_lseek (char *buf) /* 1. Parameter: file descriptor */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } fd = remote_fileio_map_fd ((int) num); if (fd == FIO_FD_INVALID) { - remote_fileio_badfd (); + remote_fileio_badfd (remote); return; } else if (fd == FIO_FD_CONSOLE_IN || fd == FIO_FD_CONSOLE_OUT) { - remote_fileio_reply (-1, FILEIO_ESPIPE); + remote_fileio_reply (remote, -1, FILEIO_ESPIPE); return; } /* 2. Parameter: offset */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } offset = (off_t) lnum; /* 3. Parameter: flag */ if (remote_fileio_extract_int (&buf, &num)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } if (remote_fileio_seek_flag_to_host (num, &flag)) { - remote_fileio_reply (-1, FILEIO_EINVAL); + remote_fileio_reply (remote, -1, FILEIO_EINVAL); return; } ret = lseek (fd, offset, flag); if (ret == (off_t) -1) - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); else - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_rename (char *buf) +remote_fileio_func_rename (remote_target *remote, char *buf) { CORE_ADDR old_ptr, new_ptr; int old_len, new_len; @@ -725,14 +725,14 @@ remote_fileio_func_rename (char *buf) /* 1. Parameter: Ptr to oldpath / length incl. trailing zero */ if (remote_fileio_extract_ptr_w_len (&buf, &old_ptr, &old_len)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } /* 2. Parameter: Ptr to newpath / length incl. trailing zero */ if (remote_fileio_extract_ptr_w_len (&buf, &new_ptr, &new_len)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -740,7 +740,7 @@ remote_fileio_func_rename (char *buf) oldpath = (char *) alloca (old_len); if (target_read_memory (old_ptr, (gdb_byte *) oldpath, old_len) != 0) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -748,7 +748,7 @@ remote_fileio_func_rename (char *buf) newpath = (char *) alloca (new_len); if (target_read_memory (new_ptr, (gdb_byte *) newpath, new_len) != 0) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -758,7 +758,7 @@ remote_fileio_func_rename (char *buf) if ((!of && !S_ISREG (ost.st_mode) && !S_ISDIR (ost.st_mode)) || (!nf && !S_ISREG (nst.st_mode) && !S_ISDIR (nst.st_mode))) { - remote_fileio_reply (-1, FILEIO_EACCES); + remote_fileio_reply (remote, -1, FILEIO_EACCES); return; } @@ -800,14 +800,14 @@ remote_fileio_func_rename (char *buf) } #endif - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); } else - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_unlink (char *buf) +remote_fileio_func_unlink (remote_target *remote, char *buf) { CORE_ADDR ptrval; int length; @@ -818,14 +818,14 @@ remote_fileio_func_unlink (char *buf) /* Parameter: Ptr to pathname / length incl. trailing zero */ if (remote_fileio_extract_ptr_w_len (&buf, &ptrval, &length)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } /* Request pathname using 'm' packet */ pathname = (char *) alloca (length); if (target_read_memory (ptrval, (gdb_byte *) pathname, length) != 0) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -833,20 +833,20 @@ remote_fileio_func_unlink (char *buf) the correct return code). */ if (!stat (pathname, &st) && !S_ISREG (st.st_mode) && !S_ISDIR (st.st_mode)) { - remote_fileio_reply (-1, FILEIO_ENODEV); + remote_fileio_reply (remote, -1, FILEIO_ENODEV); return; } ret = unlink (pathname); if (ret == -1) - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); else - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_stat (char *buf) +remote_fileio_func_stat (remote_target *remote, char *buf) { CORE_ADDR statptr, nameptr; int ret, namelength; @@ -858,14 +858,14 @@ remote_fileio_func_stat (char *buf) /* 1. Parameter: Ptr to pathname / length incl. trailing zero */ if (remote_fileio_extract_ptr_w_len (&buf, &nameptr, &namelength)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } /* 2. Parameter: Ptr to struct stat */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } statptr = (CORE_ADDR) lnum; @@ -874,7 +874,7 @@ remote_fileio_func_stat (char *buf) pathname = (char *) alloca (namelength); if (target_read_memory (nameptr, (gdb_byte *) pathname, namelength) != 0) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -882,13 +882,13 @@ remote_fileio_func_stat (char *buf) if (ret == -1) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } /* Only operate on regular files and directories. */ if (!ret && !S_ISREG (st.st_mode) && !S_ISDIR (st.st_mode)) { - remote_fileio_reply (-1, FILEIO_EACCES); + remote_fileio_reply (remote, -1, FILEIO_EACCES); return; } if (statptr) @@ -899,15 +899,15 @@ remote_fileio_func_stat (char *buf) errno = target_write_memory (statptr, (gdb_byte *) &fst, sizeof fst); if (errno != 0) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } } - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_fstat (char *buf) +remote_fileio_func_fstat (remote_target *remote, char *buf) { CORE_ADDR ptrval; int fd, ret; @@ -920,19 +920,19 @@ remote_fileio_func_fstat (char *buf) /* 1. Parameter: file descriptor */ if (remote_fileio_extract_int (&buf, &target_fd)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } fd = remote_fileio_map_fd ((int) target_fd); if (fd == FIO_FD_INVALID) { - remote_fileio_badfd (); + remote_fileio_badfd (remote); return; } /* 2. Parameter: Ptr to struct stat */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } ptrval = (CORE_ADDR) lnum; @@ -966,7 +966,7 @@ remote_fileio_func_fstat (char *buf) if (ret == -1) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } if (ptrval) @@ -976,15 +976,15 @@ remote_fileio_func_fstat (char *buf) errno = target_write_memory (ptrval, (gdb_byte *) &fst, sizeof fst); if (errno != 0) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } } - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_gettimeofday (char *buf) +remote_fileio_func_gettimeofday (remote_target *remote, char *buf) { LONGEST lnum; CORE_ADDR ptrval; @@ -995,20 +995,20 @@ remote_fileio_func_gettimeofday (char *buf) /* 1. Parameter: struct timeval pointer */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } ptrval = (CORE_ADDR) lnum; /* 2. Parameter: some pointer value... */ if (remote_fileio_extract_long (&buf, &lnum)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } /* ...which has to be NULL. */ if (lnum) { - remote_fileio_reply (-1, FILEIO_EINVAL); + remote_fileio_reply (remote, -1, FILEIO_EINVAL); return; } @@ -1016,7 +1016,7 @@ remote_fileio_func_gettimeofday (char *buf) if (ret == -1) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } @@ -1027,15 +1027,15 @@ remote_fileio_func_gettimeofday (char *buf) errno = target_write_memory (ptrval, (gdb_byte *) &ftv, sizeof ftv); if (errno != 0) { - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); return; } } - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_isatty (char *buf) +remote_fileio_func_isatty (remote_target *remote, char *buf) { long target_fd; int fd; @@ -1043,16 +1043,16 @@ remote_fileio_func_isatty (char *buf) /* Parameter: file descriptor */ if (remote_fileio_extract_int (&buf, &target_fd)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } fd = remote_fileio_map_fd ((int) target_fd); - remote_fileio_return_success (fd == FIO_FD_CONSOLE_IN || - fd == FIO_FD_CONSOLE_OUT ? 1 : 0); + int ret = fd == FIO_FD_CONSOLE_IN || fd == FIO_FD_CONSOLE_OUT ? 1 : 0; + remote_fileio_return_success (remote, ret); } static void -remote_fileio_func_system (char *buf) +remote_fileio_func_system (remote_target *remote, char *buf) { CORE_ADDR ptrval; int ret, length; @@ -1061,7 +1061,7 @@ remote_fileio_func_system (char *buf) /* Parameter: Ptr to commandline / length incl. trailing zero */ if (remote_fileio_extract_ptr_w_len (&buf, &ptrval, &length)) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } @@ -1071,37 +1071,37 @@ remote_fileio_func_system (char *buf) cmdline = (char *) alloca (length); if (target_read_memory (ptrval, (gdb_byte *) cmdline, length) != 0) { - remote_fileio_ioerror (); + remote_fileio_ioerror (remote); return; } } - /* Check if system(3) has been explicitely allowed using the + /* Check if system(3) has been explicitly allowed using the `set remote system-call-allowed 1' command. If length is 0, indicating a NULL parameter to the system call, return zero to indicate a shell is not available. Otherwise fail with EPERM. */ if (!remote_fio_system_call_allowed) { if (!length) - remote_fileio_return_success (0); + remote_fileio_return_success (remote, 0); else - remote_fileio_reply (-1, FILEIO_EPERM); + remote_fileio_reply (remote, -1, FILEIO_EPERM); return; } ret = system (cmdline); if (!length) - remote_fileio_return_success (ret); + remote_fileio_return_success (remote, ret); else if (ret == -1) - remote_fileio_return_errno (-1); + remote_fileio_return_errno (remote, -1); else - remote_fileio_return_success (WEXITSTATUS (ret)); + remote_fileio_return_success (remote, WEXITSTATUS (ret)); } static struct { - char *name; - void (*func)(char *); + const char *name; + void (*func)(remote_target *remote, char *); } remote_fio_func_map[] = { { "open", remote_fileio_func_open }, { "close", remote_fileio_func_close }, @@ -1118,10 +1118,9 @@ static struct { { NULL, NULL } }; -static int -do_remote_fileio_request (struct ui_out *uiout, void *buf_arg) +static void +do_remote_fileio_request (remote_target *remote, char *buf) { - char *buf = (char *) buf_arg; char *c; int idx; @@ -1135,10 +1134,10 @@ do_remote_fileio_request (struct ui_out *uiout, void *buf_arg) for (idx = 0; remote_fio_func_map[idx].name; ++idx) if (!strcmp (remote_fio_func_map[idx].name, buf)) break; - if (!remote_fio_func_map[idx].name) /* ERROR: No such function. */ - return RETURN_ERROR; - remote_fio_func_map[idx].func (c); - return 0; + if (!remote_fio_func_map[idx].name) + remote_fileio_reply (remote, -1, FILEIO_ENOSYS); + else + remote_fio_func_map[idx].func (remote, c); } /* Close any open descriptors, and reinitialize the file mapping. */ @@ -1168,10 +1167,8 @@ remote_fileio_reset (void) acknowledged the Ctrl-C sent asynchronously earlier. */ void -remote_fileio_request (char *buf, int ctrlc_pending_p) +remote_fileio_request (remote_target *remote, char *buf, int ctrlc_pending_p) { - int ex; - /* Save the previous quit handler, so we can restore it. No need for a cleanup since we catch all exceptions below. Note that the quit handler is also restored by remote_fileio_reply just before @@ -1184,23 +1181,20 @@ remote_fileio_request (char *buf, int ctrlc_pending_p) asynchronously earlier, take this opportunity to send the Ctrl-C synchronously. */ set_quit_flag (); - remote_fileio_reply (-1, FILEIO_EINTR); + remote_fileio_reply (remote, -1, FILEIO_EINTR); } else { - ex = catch_exceptions (current_uiout, - do_remote_fileio_request, (void *)buf, - RETURN_MASK_ALL); - switch (ex) + try + { + do_remote_fileio_request (remote, buf); + } + catch (const gdb_exception &ex) { - case RETURN_ERROR: - remote_fileio_reply (-1, FILEIO_ENOSYS); - break; - case RETURN_QUIT: - remote_fileio_reply (-1, FILEIO_EINTR); - break; - default: - break; + if (ex.reason == RETURN_QUIT) + remote_fileio_reply (remote, -1, FILEIO_EINTR); + else + remote_fileio_reply (remote, -1, FILEIO_EIO); } } @@ -1272,7 +1266,7 @@ remote_fileio_to_host_stat (struct fio_stat *fst, struct stat *st) static void -set_system_call_allowed (char *args, int from_tty) +set_system_call_allowed (const char *args, int from_tty) { if (args) { @@ -1289,7 +1283,7 @@ set_system_call_allowed (char *args, int from_tty) } static void -show_system_call_allowed (char *args, int from_tty) +show_system_call_allowed (const char *args, int from_tty) { if (args) error (_("Garbage after \"show remote "