From 303c8ebdfeffcdf06248b2dc1cebe7149e9d9823 Mon Sep 17 00:00:00 2001 From: Joel Brobecker Date: Fri, 5 Apr 2002 16:39:11 +0000 Subject: [PATCH] (xfullpath): New function. --- gdb/utils.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/gdb/utils.c b/gdb/utils.c index 3323193b79a..4baea624264 100644 --- a/gdb/utils.c +++ b/gdb/utils.c @@ -61,6 +61,7 @@ #include "expression.h" #include "language.h" #include "annotate.h" +#include "filenames.h" #include "inferior.h" /* for signed_pointer_to_address */ @@ -2560,3 +2561,50 @@ gdb_realpath (const char *filename) return xstrdup (filename); #endif } + +/* Return a copy of FILENAME, with its directory prefix canonicalized + by gdb_realpath. */ + +char * +xfullpath (const char *filename) +{ + const char *base_name = lbasename (filename); + char *dir_name; + char *real_path; + char *result; + + /* Extract the basename of filename, and return immediately + a copy of filename if it does not contain any directory prefix. */ + if (base_name == filename) + return xstrdup (filename); + + dir_name = alloca ((size_t) (base_name - filename + 2)); + /* Allocate enough space to store the dir_name + plus one extra + character sometimes needed under Windows (see below), and + then the closing \000 character */ + strncpy (dir_name, filename, base_name - filename); + dir_name[base_name - filename] = '\000'; + +#ifdef HAVE_DOS_BASED_FILE_SYSTEM + /* We need to be careful when filename is of the form 'd:foo', which + is equivalent of d:./foo, which is totally different from d:/foo. */ + if (strlen (dir_name) == 2 && + isalpha (dir_name[0]) && dir_name[1] == ':') + { + dir_name[2] = '.'; + dir_name[3] = '\000'; + } +#endif + + /* Canonicalize the directory prefix, and build the resulting + filename. If the dirname realpath already contains an ending + directory separator, avoid doubling it. */ + real_path = gdb_realpath (dir_name); + if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) + result = concat (real_path, base_name, NULL); + else + result = concat (real_path, SLASH_STRING, base_name, NULL); + + xfree (real_path); + return result; +} -- 2.30.2