[rpms/gdb] gdb-17.2-rebase-f44: Fix 'Recursive call to 'missing_rpm_list_print' when pagination is

[Sergio Durigan Junior <sergiodj@redhat.com>]

          A new commit has been pushed.

          Repo   : rpms/gdb
          Branch : gdb-17.2-rebase-f44
          Commit : 76de4498769093cec728267dc9075cd72143a909
          Author : Sergio Durigan Junior <sergiodj@redhat.com>
          Date   : 2020-02-13T14:21:00-05:00
          Stats  : +27/-7 in 2 file(s)
          URL    : https://src.fedoraproject.org/rpms/gdb/c/76de4498769093cec728267dc9075cd72143a909?branch=gdb-17.2-rebase-f44

          Log:
          Fix 'Recursive call to 'missing_rpm_list_print' when pagination is
on and missing RPM list is big' (RHBZ 1801974, Sergio Durigan
Junior).

---
diff --git a/gdb-6.6-buildid-locate-rpm.patch b/gdb-6.6-buildid-locate-rpm.patch
index fa1c629..6e1cef8 100644
--- a/gdb-6.6-buildid-locate-rpm.patch
+++ b/gdb-6.6-buildid-locate-rpm.patch
@@ -243,7 +243,7 @@ diff --git a/gdb/build-id.c b/gdb/build-id.c
  #include "libbfd.h"
  #include "objfiles.h"
  #include "observable.h"
-@@ -698,8 +699,359 @@ build_id_to_filename (const struct bfd_build_id *build_id, char **link_return)
+@@ -698,8 +699,374 @@ build_id_to_filename (const struct bfd_build_id *build_id, char **link_return)
    return result;
  }
  
@@ -541,6 +541,22 @@ diff --git a/gdb/build-id.c b/gdb/build-id.c
 +
 +  std::sort (array.begin (), array.end (), missing_rpm_list_compar);
 +
++  /* We zero out the number of missing RPMs here because of a nasty
++     bug (see RHBZ 1801974).
++
++     When we call 'puts_unfiltered' below, if pagination is on and if
++     the number of missing RPMs is big enough to trigger pagination,
++     we will end up in an infinite recursion.  The call chain looks
++     like this:
++
++     missing_rpm_list_print -> puts_unfiltered -> fputs_maybe_filtered
++     -> prompt_for_continue -> display_gdb_prompt ->
++     debug_flush_missing -> missing_rpm_list_print ...
++
++     For this reason, we make sure MISSING_RPM_LIST_ENTRIES is zero
++     *before* calling any print function.  */
++  missing_rpm_list_entries = 0;
++
 +  printf_unfiltered (_("Missing separate debuginfos, use: %s"),
 +#ifdef DNF_DEBUGINFO_INSTALL
 +		     "dnf "
@@ -548,10 +564,10 @@ diff --git a/gdb/build-id.c b/gdb/build-id.c
 +		     "debuginfo-install");
 +  for (const char *el : array)
 +    {
-+      putchar_unfiltered (' ');
++      puts_unfiltered (" ");
 +      puts_unfiltered (el);
 +    }
-+  putchar_unfiltered ('\n');
++  puts_unfiltered ("\n");
 +
 +  while (missing_rpm_list != NULL)
 +    {
@@ -559,7 +575,6 @@ diff --git a/gdb/build-id.c b/gdb/build-id.c
 +      missing_rpm_list = list_iter->next;
 +      xfree (list_iter);
 +    }
-+  missing_rpm_list_entries = 0;
 +}
 +
 +static void
@@ -604,7 +619,7 @@ diff --git a/gdb/build-id.c b/gdb/build-id.c
     avoidance.  */
  
  struct missing_filepair
-@@ -753,11 +1105,17 @@ missing_filepair_change (void)
+@@ -753,11 +1120,17 @@ missing_filepair_change (void)
        /* All their memory came just from missing_filepair_OBSTACK.  */
        missing_filepair_hash = NULL;
      }
@@ -622,7 +637,7 @@ diff --git a/gdb/build-id.c b/gdb/build-id.c
    missing_filepair_change ();
  }
  
-@@ -824,14 +1182,38 @@ debug_print_missing (const char *binary, const char *debug)
+@@ -824,14 +1197,38 @@ debug_print_missing (const char *binary, const char *debug)
  
    *slot = missing_filepair;
  

diff --git a/gdb.spec b/gdb.spec
index ff49b8c..635e189 100644
--- a/gdb.spec
+++ b/gdb.spec
@@ -35,7 +35,7 @@ Version: 9.1
 
 # The release always contains a leading reserved number, start it at 1.
 # `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
-Release: 2%{?dist}
+Release: 3%{?dist}
 
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ and GPLv2+ with exceptions and GPL+ and LGPLv2+ and LGPLv3+ and BSD and Public Domain and GFDL
 # Do not provide URL for snapshots as the file lasts there only for 2 days.
@@ -1154,6 +1154,11 @@ fi
 %endif
 
 %changelog
+* Thu Feb 13 2020 Sergio Durigan Junior <sergiodj@redhat.com> - 9.1-3
+- Fix 'Recursive call to 'missing_rpm_list_print' when pagination is
+  on and missing RPM list is big' (RHBZ 1801974, Sergio Durigan
+  Junior).
+
 * Mon Feb 10 2020 Sergio Durigan Junior <sergiodj@redhat.com> - 9.1-2
 - Enable libxxhash during build.