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| author | Sergio Durigan Junior <sergiodj@redhat.com> | 2018-09-10 12:52:04 -0400 |
|---|---|---|
| committer | Sergio Durigan Junior <sergiodj@redhat.com> | 2018-09-10 13:52:24 -0400 |
| commit | e2fc52e745757a11f7a4a256984cabbe5474f55a (patch) | |
| tree | 724307de8f8256b2f2afe4a7ab609ac67122ad2f /gdb/gnulib | |
| parent | 5e8754f90abbbf832987477eea4ee91a9d2f694c (diff) | |
| download | gdb-e2fc52e745757a11f7a4a256984cabbe5474f55a.zip gdb-e2fc52e745757a11f7a4a256984cabbe5474f55a.tar.gz gdb-e2fc52e745757a11f7a4a256984cabbe5474f55a.tar.bz2 | |
Fix PR gdb/23558: Use system's 'getcwd' when cross-compiling GDB
This is a backport of a gnulib fix for the following bug:
https://sourceware.org/bugzilla/show_bug.cgi?id=23558
The problem reported there is about the replacement of 'getcwd' when
cross-compiling GDB. With our current gnulib copy, the mechanism for
deciding whether to use the system's 'getcwd' or gnulib's version is
too simplistic and pessimistic, so when cross-compiling we always end
up using gnulib's version, which has a limitation: it cannot handle
the situation when the parent directory doesn't have read permissions.
The solution is to backport the following gnulib commit:
commit a96d2e67052c879b1bcc5bc461722beac75fc372
Author: Bruno Haible <bruno@clisp.org>
Date: Thu Aug 23 21:13:19 2018 +0200
getcwd: Add cross-compilation guesses.
gdb/ChangeLog:
2018-09-10 Sergio Durigan Junior <sergiodj@redhat.com>
PR gdb/23555
PR gdb/23558
* gnulib/import/m4/getcwd-path-max.m4: Add cross-compilation
guesses.
Diffstat (limited to 'gdb/gnulib')
| -rw-r--r-- | gdb/gnulib/import/m4/getcwd-path-max.m4 | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/gdb/gnulib/import/m4/getcwd-path-max.m4 b/gdb/gnulib/import/m4/getcwd-path-max.m4 index 2531ccf..90bbc77 100644 --- a/gdb/gnulib/import/m4/getcwd-path-max.m4 +++ b/gdb/gnulib/import/m4/getcwd-path-max.m4 @@ -209,9 +209,21 @@ main () 32) gl_cv_func_getcwd_path_max='yes, but with shorter paths';; *) gl_cv_func_getcwd_path_max=no;; esac], - [case "$host_os" in - aix*) gl_cv_func_getcwd_path_max='no, it has the AIX bug';; - *) gl_cv_func_getcwd_path_max=no;; - esac]) + [# Cross-compilation guesses: + case "$host_os" in + aix*) # On AIX, it has the AIX bug. + gl_cv_func_getcwd_path_max='no, it has the AIX bug' ;; + gnu*) # On Hurd, it is 'yes'. + gl_cv_func_getcwd_path_max=yes ;; + linux* | kfreebsd*) + # On older Linux+glibc it's 'no, but it is partly working', + # on newer Linux+glibc it's 'yes'. + # On Linux+musl libc, it's 'no, but it is partly working'. + # On kFreeBSD+glibc, it's 'no, but it is partly working'. + gl_cv_func_getcwd_path_max='no, but it is partly working' ;; + *) # If we don't know, assume the worst. + gl_cv_func_getcwd_path_max=no ;; + esac + ]) ]) ]) |