gnulib/patches/0001-Fix-PR-gdb-23558-Use-system-s-getcwd-when-cross-comp.patch

   1 From a7447215cdc492a077732420a3f0db6d48b34d51 Mon Sep 17 00:00:00 2001
   2 From: Sergio Durigan Junior <sergiodj@redhat.com>
   3 Date: Mon, 10 Sep 2018 12:52:04 -0400
   4 Subject: [PATCH] Fix PR gdb/23558: Use system's 'getcwd' when cross-compiling
   5  GDB
   6
   7 This is a backport of a gnulib fix for the following bug:
   8
   9   https://sourceware.org/bugzilla/show_bug.cgi?id=23558
  10
  11 The problem reported there is about the replacement of 'getcwd' when
  12 cross-compiling GDB.  With our current gnulib copy, the mechanism for
  13 deciding whether to use the system's 'getcwd' or gnulib's version is
  14 too simplistic and pessimistic, so when cross-compiling we always end
  15 up using gnulib's version, which has a limitation: it cannot handle
  16 the situation when the parent directory doesn't have read permissions.
  17
  18 The solution is to backport the following gnulib commit:
  19
  20   commit a96d2e67052c879b1bcc5bc461722beac75fc372
  21   Author: Bruno Haible <bruno@clisp.org>
  22   Date:   Thu Aug 23 21:13:19 2018 +0200
  23
  24       getcwd: Add cross-compilation guesses.
  25
  26 gdb/ChangeLog:
  27 2018-09-10  Sergio Durigan Junior  <sergiodj@redhat.com>
  28
  29         PR gdb/23555
  30         PR gdb/23558
  31         * gnulib/import/m4/getcwd-path-max.m4: Add cross-compilation
  32         guesses.
  33 ---
  34  gdb/gnulib/import/m4/getcwd-path-max.m4 | 20 ++++++++++++++++----
  35  1 file changed, 16 insertions(+), 4 deletions(-)
  36
  37 diff --git a/gdb/gnulib/import/m4/getcwd-path-max.m4 b/gdb/gnulib/import/m4/getcwd-path-max.m4
  38 index 2531ccff65c..90bbc77dea1 100644
  39 --- a/gdb/gnulib/import/m4/getcwd-path-max.m4
  40 +++ b/gdb/gnulib/import/m4/getcwd-path-max.m4
  41 @@ -209,9 +209,21 @@ main ()
  42       32) gl_cv_func_getcwd_path_max='yes, but with shorter paths';;
  43       *) gl_cv_func_getcwd_path_max=no;;
  44       esac],
  45 -    [case "$host_os" in
  46 -       aix*) gl_cv_func_getcwd_path_max='no, it has the AIX bug';;
  47 -       *) gl_cv_func_getcwd_path_max=no;;
  48 -     esac])
  49 +    [# Cross-compilation guesses:
  50 +     case "$host_os" in
  51 +       aix*) # On AIX, it has the AIX bug.
  52 +         gl_cv_func_getcwd_path_max='no, it has the AIX bug' ;;
  53 +       gnu*) # On Hurd, it is 'yes'.
  54 +         gl_cv_func_getcwd_path_max=yes ;;
  55 +       linux* | kfreebsd*)
  56 +         # On older Linux+glibc it's 'no, but it is partly working',
  57 +         # on newer Linux+glibc it's 'yes'.
  58 +         # On Linux+musl libc, it's 'no, but it is partly working'.
  59 +         # On kFreeBSD+glibc, it's 'no, but it is partly working'.
  60 +         gl_cv_func_getcwd_path_max='no, but it is partly working' ;;
  61 +       *) # If we don't know, assume the worst.
  62 +         gl_cv_func_getcwd_path_max=no ;;
  63 +     esac
  64 +    ])
  65    ])
  66  ])
  67 --
  68 2.19.0
  69