diff options
| author | Nick Clifton <nickc@redhat.com> | 2006-03-02 10:01:21 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@gcc.gnu.org> | 2006-03-02 10:01:21 +0000 |
| commit | c5dde55b61d8bbbcedbf7562f8a403d2e9f06d45 (patch) | |
| tree | a9383057ec023d79c9b4ec53c552aadf810a745e /gcc | |
| parent | 7533450810c6be6aa4ae7eeec6062b6fb28ab45a (diff) | |
| download | gcc-c5dde55b61d8bbbcedbf7562f8a403d2e9f06d45.zip gcc-c5dde55b61d8bbbcedbf7562f8a403d2e9f06d45.tar.gz gcc-c5dde55b61d8bbbcedbf7562f8a403d2e9f06d45.tar.bz2 | |
config.gcc (default_use_cxa_atexit): Extend the description of this configure variable.
* config.gcc (default_use_cxa_atexit): Extend the description of
this configure variable. Set its default value to "yes" for
Linux, NetBSD and ELF targets on the assumption that they will
use C libraries with the __cxa_atexit function.
From-SVN: r111636
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config.gcc | 19 |
2 files changed, 23 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d45c3a3..f6bad00 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2006-03-02 Nick Clifton <nickc@redhat.com> + + * config.gcc (default_use_cxa_atexit): Extend the description of + this configure variable. Set its default value to "yes" for + Linux, NetBSD and ELF targets on the assumption that they will + use C libraries with the __cxa_atexit function. + 2006-03-02 Ben Elliston <bje@au.ibm.com> * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs' diff --git a/gcc/config.gcc b/gcc/config.gcc index 9aea7ce..c789037 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -34,9 +34,14 @@ # threads support was requested. # # default_use_cxa_atexit -# "no" by default, can be set to "yes" if a target -# wishes to use __cxa_atexit() by default if the -# $enable___cxa_atexit variable is not set. +# The default value for the $enable___cxa_atexit +# variable. enable___cxa_atexit needs to be set to +# "yes" for the correct operation of C++ destructors +# but it relies upon the presence of a non-standard C +# library function called __cxa_atexit. +# Since not all C libraries provide __cxa_atexit the +# default value of $default_use_cxa_atexit is set to +# "no" except for targets which are known to be OK. # # gas_flag Either yes or no depending on whether GNU as was # requested. @@ -461,6 +466,8 @@ case ${target} in tm_defines="${tm_defines} UCLIBC_DEFAULT=0" ;; esac + # Assume that glibc or uClibc are being used and so __cxa_atexit is provided. + default_use_cxa_atexit=yes ;; *-*-gnu*) # On the Hurd, the setup is just about the same on @@ -482,6 +489,8 @@ case ${target} in tm_file="${cpu_type}/${cpu_type}.h i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h linux.h i386/linux.h gnu.h ${tm_file}" ;; esac + # Assume that glibc is being used and so __cxa_atexit is provided. + default_use_cxa_atexit=yes ;; *-*-netbsd*) tmake_file="t-slibgcc-elf-ver t-libc-ok t-netbsd t-libgcc-pic" @@ -551,6 +560,10 @@ case ${target} in *) echo 'Unknown thread configuration for VxWorks'; exit 1 ;; esac ;; +*-*-elf) + # Assume that newlib is being used and so __cxa_atexit is provided. + default_use_cxa_atexit=yes + ;; esac case ${target} in |