X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fsource.c;h=a1f55b29c4329f7db755d6e140822138063253f7;hb=e26b7e41652e288dfdb4c48121bba470c4774150;hp=19c25623758b0f7d9a10379a694c44e50b688849;hpb=6d3d12ebef6fa7dd6bc8c34fbc5e440ac8d0a8c6;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/source.c b/gdb/source.c index 19c2562375..a1f55b29c4 100644 --- a/gdb/source.c +++ b/gdb/source.c @@ -1,5 +1,5 @@ /* List lines of source files for GDB, the GNU debugger. - Copyright (C) 1986-2014 Free Software Foundation, Inc. + Copyright (C) 1986-2016 Free Software Foundation, Inc. This file is part of GDB. @@ -42,6 +42,7 @@ #include "completer.h" #include "ui-out.h" #include "readline/readline.h" +#include "common/enum-flags.h" #define OPEN_MODE (O_RDONLY | O_BINARY) #define FDOPEN_MODE FOPEN_RB @@ -94,7 +95,7 @@ static struct program_space *current_source_pspace; and friends should be rewritten to count characters and see where things are wrapping, but that would be a fair amount of work. */ -int lines_to_list = 10; +static int lines_to_list = 10; static void show_lines_to_list (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) @@ -259,6 +260,7 @@ select_source_symtab (struct symtab *s) struct symtabs_and_lines sals; struct symtab_and_line sal; struct objfile *ofp; + struct compunit_symtab *cu; if (s) { @@ -273,7 +275,7 @@ select_source_symtab (struct symtab *s) /* Make the default place to list be the function `main' if one exists. */ - if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0)) + if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0).symbol) { sals = decode_line_with_current_source (main_name (), DECODE_LINE_FUNFIRSTLINE); @@ -291,19 +293,16 @@ select_source_symtab (struct symtab *s) current_source_line = 1; - ALL_OBJFILES (ofp) + ALL_FILETABS (ofp, cu, s) { - for (s = ofp->symtabs; s; s = s->next) - { - const char *name = s->filename; - int len = strlen (name); + const char *name = s->filename; + int len = strlen (name); - if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 - || strcmp (name, "<>") == 0))) - { - current_source_pspace = current_program_space; - current_source_symtab = s; - } + if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 + || strcmp (name, "<>") == 0))) + { + current_source_pspace = current_program_space; + current_source_symtab = s; } } @@ -372,9 +371,10 @@ show_directories_command (struct ui_file *file, int from_tty, void forget_cached_source_info_for_objfile (struct objfile *objfile) { + struct compunit_symtab *cu; struct symtab *s; - ALL_OBJFILE_SYMTABS (objfile, s) + ALL_OBJFILE_FILETABS (objfile, cu, s) { if (s->line_charpos != NULL) { @@ -655,15 +655,18 @@ static void source_info (char *ignore, int from_tty) { struct symtab *s = current_source_symtab; + struct compunit_symtab *cust; if (!s) { printf_filtered (_("No current source file.\n")); return; } + + cust = SYMTAB_COMPUNIT (s); printf_filtered (_("Current source file is %s\n"), s->filename); - if (s->dirname) - printf_filtered (_("Compilation directory is %s\n"), s->dirname); + if (SYMTAB_DIRNAME (s) != NULL) + printf_filtered (_("Compilation directory is %s\n"), SYMTAB_DIRNAME (s)); if (s->fullname) printf_filtered (_("Located in %s\n"), s->fullname); if (s->nlines) @@ -671,9 +674,14 @@ source_info (char *ignore, int from_tty) s->nlines == 1 ? "" : "s"); printf_filtered (_("Source language is %s.\n"), language_str (s->language)); - printf_filtered (_("Compiled with %s debugging format.\n"), s->debugformat); + printf_filtered (_("Producer is %s.\n"), + COMPUNIT_PRODUCER (cust) != NULL + ? COMPUNIT_PRODUCER (cust) : _("unknown")); + printf_filtered (_("Compiled with %s debugging format.\n"), + COMPUNIT_DEBUGFORMAT (cust)); printf_filtered (_("%s preprocessor macro info.\n"), - s->macro_table ? "Includes" : "Does not include"); + COMPUNIT_MACRO_TABLE (cust) != NULL + ? "Includes" : "Does not include"); } @@ -739,6 +747,9 @@ openp (const char *path, int opts, const char *string, struct cleanup *back_to; int ix; char *dir; + /* The errno set for the last name we tried to open (and + failed). */ + int last_errno = 0; /* The open syscall MODE parameter is not specified. */ gdb_assert ((mode & O_CREAT) == 0); @@ -768,7 +779,7 @@ openp (const char *path, int opts, const char *string, if (is_regular_file (string)) { - filename = alloca (strlen (string) + 1); + filename = (char *) alloca (strlen (string) + 1); strcpy (filename, string); fd = gdb_open_cloexec (filename, mode, 0); if (fd >= 0) @@ -779,6 +790,7 @@ openp (const char *path, int opts, const char *string, filename = NULL; fd = -1; } + last_errno = errno; if (!(opts & OPF_SEARCH_IN_PATH)) for (i = 0; string[i]; i++) @@ -799,8 +811,9 @@ openp (const char *path, int opts, const char *string, string += 2; alloclen = strlen (path) + strlen (string) + 2; - filename = alloca (alloclen); + filename = (char *) alloca (alloclen); fd = -1; + last_errno = ENOENT; dir_vec = dirnames_to_char_ptr_vec (path); back_to = make_cleanup_free_char_ptr_vec (dir_vec); @@ -820,7 +833,7 @@ openp (const char *path, int opts, const char *string, if (newlen > alloclen) { alloclen = newlen; - filename = alloca (alloclen); + filename = (char *) alloca (alloclen); } strcpy (filename, current_directory); } @@ -838,7 +851,7 @@ openp (const char *path, int opts, const char *string, if (newlen > alloclen) { alloclen = newlen; - filename = alloca (alloclen); + filename = (char *) alloca (alloclen); } strcpy (filename, tilde_expanded); xfree (tilde_expanded); @@ -871,6 +884,7 @@ openp (const char *path, int opts, const char *string, fd = gdb_open_cloexec (filename, mode, 0); if (fd >= 0) break; + last_errno = errno; } } @@ -888,6 +902,7 @@ done: *filename_opened = gdb_abspath (filename); } + errno = last_errno; return fd; } @@ -1108,7 +1123,7 @@ open_source_file (struct symtab *s) if (!s) return -1; - return find_and_open_source (s->filename, s->dirname, &s->fullname); + return find_and_open_source (s->filename, SYMTAB_DIRNAME (s), &s->fullname); } /* Finds the fullname that a symtab represents. @@ -1128,7 +1143,8 @@ symtab_to_fullname (struct symtab *s) to handle cases like the file being moved. */ if (s->fullname == NULL) { - int fd = find_and_open_source (s->filename, s->dirname, &s->fullname); + int fd = find_and_open_source (s->filename, SYMTAB_DIRNAME (s), + &s->fullname); if (fd >= 0) close (fd); @@ -1140,10 +1156,11 @@ symtab_to_fullname (struct symtab *s) /* rewrite_source_path would be applied by find_and_open_source, we should report the pathname where GDB tried to find the file. */ - if (s->dirname == NULL || IS_ABSOLUTE_PATH (s->filename)) + if (SYMTAB_DIRNAME (s) == NULL || IS_ABSOLUTE_PATH (s->filename)) fullname = xstrdup (s->filename); else - fullname = concat (s->dirname, SLASH_STRING, s->filename, NULL); + fullname = concat (SYMTAB_DIRNAME (s), SLASH_STRING, s->filename, + NULL); back_to = make_cleanup (xfree, fullname); s->fullname = rewrite_source_path (fullname); @@ -1188,12 +1205,12 @@ find_source_lines (struct symtab *s, int desc) int size; gdb_assert (s); - line_charpos = (int *) xmalloc (lines_allocated * sizeof (int)); + line_charpos = XNEWVEC (int, lines_allocated); if (fstat (desc, &st) < 0) perror_with_name (symtab_to_filename_for_display (s)); - if (s->objfile && s->objfile->obfd) - mtime = s->objfile->mtime; + if (SYMTAB_OBJFILE (s) != NULL && SYMTAB_OBJFILE (s)->obfd != NULL) + mtime = SYMTAB_OBJFILE (s)->mtime; else if (exec_bfd) mtime = exec_bfd_mtime; @@ -1297,7 +1314,7 @@ identify_source_line (struct symtab *s, int line, int mid_statement, /* Don't index off the end of the line_charpos array. */ return 0; annotate_source (s->fullname, line, s->line_charpos[line - 1], - mid_statement, get_objfile_arch (s->objfile), pc); + mid_statement, get_objfile_arch (SYMTAB_OBJFILE (s)), pc); current_source_line = line; current_source_symtab = s; @@ -1311,7 +1328,7 @@ identify_source_line (struct symtab *s, int line, int mid_statement, static void print_source_lines_base (struct symtab *s, int line, int stopline, - enum print_source_lines_flags flags) + print_source_lines_flags flags) { int c; int desc; @@ -1345,7 +1362,7 @@ print_source_lines_base (struct symtab *s, int line, int stopline, else { desc = last_source_error; - flags |= PRINT_SOURCE_LINES_NOERROR; + flags |= PRINT_SOURCE_LINES_NOERROR; noprint = 1; } @@ -1357,7 +1374,7 @@ print_source_lines_base (struct symtab *s, int line, int stopline, { const char *filename = symtab_to_filename_for_display (s); int len = strlen (filename) + 100; - char *name = alloca (len); + char *name = (char *) alloca (len); xsnprintf (name, len, "%d\t%s", line, filename); print_sys_errmsg (name, errno); @@ -1384,7 +1401,7 @@ print_source_lines_base (struct symtab *s, int line, int stopline, /* ui_out_field_string may free S_FULLNAME by calling open_source_file for it again. See e.g., tui_field_string->tui_show_source. */ - local_fullname = alloca (strlen (s_fullname) + 1); + local_fullname = (char *) alloca (strlen (s_fullname) + 1); strcpy (local_fullname, s_fullname); ui_out_field_string (uiout, "fullname", local_fullname); @@ -1471,7 +1488,7 @@ print_source_lines_base (struct symtab *s, int line, int stopline, void print_source_lines (struct symtab *s, int line, int stopline, - enum print_source_lines_flags flags) + print_source_lines_flags flags) { print_source_lines_base (s, line, stopline, flags); } @@ -1499,8 +1516,7 @@ line_info (char *arg, int from_tty) sal.line = current_source_line; sals.nelts = 1; - sals.sals = (struct symtab_and_line *) - xmalloc (sizeof (struct symtab_and_line)); + sals.sals = XNEW (struct symtab_and_line); sals.sals[0] = sal; } else @@ -1541,7 +1557,8 @@ line_info (char *arg, int from_tty) else if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) { - struct gdbarch *gdbarch = get_objfile_arch (sal.symtab->objfile); + struct gdbarch *gdbarch + = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); if (start_pc == end_pc) { @@ -1635,7 +1652,7 @@ forward_search_command (char *regex, int from_tty) int cursize, newsize; cursize = 256; - buf = xmalloc (cursize); + buf = (char *) xmalloc (cursize); p = buf; c = fgetc (stream); @@ -1647,7 +1664,7 @@ forward_search_command (char *regex, int from_tty) if (p - buf == cursize) { newsize = cursize + cursize / 2; - buf = xrealloc (buf, newsize); + buf = (char *) xrealloc (buf, newsize); p = buf + cursize; cursize = newsize; } @@ -1806,9 +1823,8 @@ void add_substitute_path_rule (char *from, char *to) { struct substitute_path_rule *rule; - struct substitute_path_rule *new_rule; + struct substitute_path_rule *new_rule = XNEW (struct substitute_path_rule); - new_rule = xmalloc (sizeof (struct substitute_path_rule)); new_rule->from = xstrdup (from); new_rule->to = xstrdup (to); new_rule->next = NULL; @@ -2037,16 +2053,6 @@ Setting the value to an empty string sets it to $cdir:$cwd, the default."), show_directories_command, &setlist, &showlist); - if (xdb_commands) - { - add_com_alias ("D", "directory", class_files, 0); - add_cmd ("ld", no_class, show_directories_1, _("\ -Current search path for finding source files.\n\ -$cwd in the path means the current working directory.\n\ -$cdir in the path means the compilation directory of the source file."), - &cmdlist); - } - add_info ("source", source_info, _("Information about the current source file.")); @@ -2073,12 +2079,6 @@ Search backward for regular expression (see regex(3)) from last line listed.\n\ The matching line number is also stored as the value of \"$_\".")); add_com_alias ("rev", "reverse-search", class_files, 1); - if (xdb_commands) - { - add_com_alias ("/", "forward-search", class_files, 0); - add_com_alias ("?", "reverse-search", class_files, 0); - } - add_setshow_integer_cmd ("listsize", class_support, &lines_to_list, _("\ Set number of source lines gdb will list by default."), _("\ Show number of source lines gdb will list by default."), _("\