diff options
| author | Chris Johns <chrisj@rtems.org> | 2013-07-16 09:58:54 +1000 |
|---|---|---|
| committer | Chris Johns <chrisj@rtems.org> | 2013-07-16 09:58:54 +1000 |
| commit | 98f78dc6ab8325b7588a8e705e96b458c749bce2 (patch) | |
| tree | 0808161622fa63183d8c15527b6f6d83b9e919b4 /tools/4.11 | |
| parent | 6651de84746818441f0818165bca34be3273a95e (diff) | |
The __cxa_atexit support is a reqirement for destructor registration of
thread-local objects.
For *-*-elf it is already enabled by default. See comment line 810 in
"gcc/config.gcc".
Define TARGET_LIBGCC_SDATA_SECTION on PowerPC for RTEMS to ".sdata" to
place the __dso_handle. The __dso_handle is referenced by application
code. In case this code uses the small data section, the __dso_handle
must be there.
This patch should be committed to GCC 4.8 and 4.9.
Test results:
href="http://gcc.gnu.org/ml/gcc-testresults/2013-07/msg00671.html
Diffstat (limited to 'tools/4.11')
| -rw-r--r-- | tools/4.11/gcc/gcc-4.8.1-rtems4.11-20130709.diff | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tools/4.11/gcc/gcc-4.8.1-rtems4.11-20130709.diff b/tools/4.11/gcc/gcc-4.8.1-rtems4.11-20130709.diff new file mode 100644 index 0000000..565fda8 --- /dev/null +++ b/tools/4.11/gcc/gcc-4.8.1-rtems4.11-20130709.diff @@ -0,0 +1,55 @@ +The __cxa_atexit support is a reqirement for destructor registration of +thread-local objects. + +For *-*-elf it is already enabled by default. See comment line 810 in +"gcc/config.gcc". + +Define TARGET_LIBGCC_SDATA_SECTION on PowerPC for RTEMS to ".sdata" to +place the __dso_handle. The __dso_handle is referenced by application +code. In case this code uses the small data section, the __dso_handle +must be there. + +This patch should be committed to GCC 4.8 and 4.9. + +Test results: + + href="http://gcc.gnu.org/ml/gcc-testresults/2013-07/msg00671.html + +gcc/ChangeLog +2013-07-08 Sebastian Huber <sebastian.huber@embedded-brains.de> + + * config.gcc (*-*-rtems*): Use __cxa_atexit by default. + * config/rs6000/rtems.h (TARGET_LIBGCC_SDATA_SECTION): Define. +--- + gcc/config.gcc | 1 + + gcc/config/rs6000/rtems.h | 3 +++ + 2 files changed, 4 insertions(+), 0 deletions(-) + +diff --git a/gcc/config.gcc b/gcc/config.gcc +index a927964..1648dfe 100644 +--- a/gcc/config.gcc ++++ b/gcc/config.gcc +@@ -734,6 +734,7 @@ case ${target} in + yes) thread_file='rtems' ;; + esac + extra_options="${extra_options} rtems.opt" ++ default_use_cxa_atexit=yes + use_gcc_stdint=wrap + ;; + *-*-uclinux*) +diff --git a/gcc/config/rs6000/rtems.h b/gcc/config/rs6000/rtems.h +index b910b5e..fb22be1 100644 +--- a/gcc/config/rs6000/rtems.h ++++ b/gcc/config/rs6000/rtems.h +@@ -34,6 +34,9 @@ + } \ + while (0) + ++#undef TARGET_LIBGCC_SDATA_SECTION ++#define TARGET_LIBGCC_SDATA_SECTION ".sdata" ++ + #undef CPP_OS_DEFAULT_SPEC + #define CPP_OS_DEFAULT_SPEC "%(cpp_os_rtems)" + +-- +1.7.7 |