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Pass current directory to gdb_abspath

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Currently, gdb_abspath uses the current_directory global.  However,
background threads need to capture this global to avoid races with the
user using "cd".

This patch changes this function to accept a cwd parameter, in
prepration for this.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31716
This commit is contained in:
Tom Tromey 2024-09-29 12:22:07 -06:00
parent e686338105
commit 03ace3807c
2 changed files with 12 additions and 12 deletions
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6
gdbsupport/pathstuff.cc
View File

@ -124,17 +124,17 @@ gdb_realpath_keepfile (const char *filename)
/* See gdbsupport/pathstuff.h. */
std::string
gdb_abspath (const char *path)
gdb_abspath (const char *path, const char *cwd)
{
gdb_assert (path != NULL && path[0] != '\0');
if (path[0] == '~')
return gdb_tilde_expand (path);
if (IS_ABSOLUTE_PATH (path) || current_directory == NULL)
if (IS_ABSOLUTE_PATH (path) || cwd == NULL)
return path;
return path_join (current_directory, path);
return path_join (cwd, path);
}
/* See gdbsupport/pathstuff.h. */

18
gdbsupport/pathstuff.h
View File

@ -30,6 +30,9 @@
/* Path utilities. */
/* String containing the current directory (what getwd would return). */
extern char *current_directory;
/* Return the real path of FILENAME, expanding all the symbolic links.
Contrary to "gdb_abspath", this function does not use
@ -47,14 +50,14 @@ extern std::string gdb_realpath_keepfile (const char *filename);
PATH cannot be NULL or the empty string.
This does not resolve symlinks however, use gdb_realpath for that.
Contrary to "gdb_realpath", this function uses CURRENT_DIRECTORY
for the path expansion. This may lead to scenarios the current
working directory (CWD) is different than CURRENT_DIRECTORY.
Contrary to "gdb_realpath", this function uses CWD for the path
expansion. This may lead to scenarios the current working
directory is different than CWD.
If CURRENT_DIRECTORY is NULL, this function returns a copy of
PATH. */
If CWD is NULL, this function returns a copy of PATH. */
extern std::string gdb_abspath (const char *path);
extern std::string gdb_abspath (const char *path,
const char *cwd = current_directory);
/* Overload of gdb_abspath which takes std::string. */
@ -177,7 +180,4 @@ extern const char *get_shell ();
extern gdb::char_vector make_temp_filename (const std::string &f);
/* String containing the current directory (what getwd would return). */
extern char *current_directory;
#endif /* COMMON_PATHSTUFF_H */