libctf: do not use mmap on Solaris 11

Writable mmaps and read are inconsistent with each other on Solaris 11.4,
which breaks archive writing.  Simply assert that Solaris 2.11 doesn't have
mmap, falling back to read(): the archive format is being bumped shortly, to
one with completely different writeout code, so this workaround need not
stay for long.

[nca: added commit log]

libctf/
	PR libctf/29292
	* configure.ac: Turn off mmap on Solaris 2.11.
	* configure: Regenerated.

diff --git a/libctf/configure b/libctf/configure
index 7466d56a18bc22d70eaf593e8ec55745968246b6..4c244da01008e79da88379d77808c17598922c2a 100755 (executable)
--- a/libctf/configure
+++ b/libctf/configure
@@ -15966,6 +15966,14 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+case "${host}" in
+  # PR libctf/29292
+  # libctf's use of mmap doesn't work on Solaris 11.4, so disable it.
+  *-*-solaris2.11*)
+    ac_cv_func_mmap_fixed_mapped=no
+  ;;
+esac
+
 
 
 

diff --git a/libctf/configure.ac b/libctf/configure.ac
index fbd8ec12a14445c6a1d4a552d351b1d51d50dcc5..dbe311c5af3a9a5a58f27b7d20379acc09191852 100644 (file)
--- a/libctf/configure.ac
+++ b/libctf/configure.ac
@@ -65,6 +65,14 @@ AM_MAINTAINER_MODE
 AM_INSTALL_LIBBFD
 ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags])
 
+case "${host}" in
+  # PR libctf/29292
+  # libctf's use of mmap doesn't work on Solaris 11.4, so disable it.
+  *-*-solaris2.11*)
+    ac_cv_func_mmap_fixed_mapped=no
+  ;;
+esac
+
 GCC_AC_FUNC_MMAP
 # Needed for BFD capability checks.
 AC_SEARCH_LIBS(dlsym, dl)