Hi, Forwarding this patch to gcc-patches...
Cheers! Cindy ________________________________________ From: rtems-devel-boun...@rtems.org [rtems-devel-boun...@rtems.org] on behalf of Sebastian Huber [sebastian.hu...@embedded-brains.de] Sent: Tuesday, June 18, 2013 4:58 AM To: rtems-de...@rtems.org Subject: [PATCH] RTEMS: Use strict DWARF-2 on ARM, PowerPC, SPARC Some debuggers do not cope with the new DWARF3/4 debug format introduced with GCC 4.8. Default to strict DWARF-2 on ARM, PowerPC and SPARC for now. This patch should be committed to GCC 4.8 and 4.9. gcc/ChangeLog 2013-06-18 Sebastian Huber <sebastian.hu...@embedded-brains.de> * config/rtems.c: New. * config.gcc (*-*-rtems*): Set extra_objs. * config/rtems.h (rtems_override_options): Declare. (RTEMS_OVERRIDE_OPTIONS): Define. * config/t-rtems (rtems.o): New. * config/arm/rtems-eabi.h (SUBTARGET_OVERRIDE_OPTIONS): Define. * config/rs6000/rtems.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Define. * config/sparc/rtemself.h (SUBTARGET_OVERRIDE_OPTIONS): Define. --- gcc/config.gcc | 1 + gcc/config/arm/rtems-eabi.h | 3 +++ gcc/config/rs6000/rtems.h | 3 +++ gcc/config/rtems.c | 37 +++++++++++++++++++++++++++++++++++++ gcc/config/rtems.h | 4 ++++ gcc/config/sparc/rtemself.h | 3 +++ gcc/config/t-rtems | 4 ++++ 7 files changed, 55 insertions(+), 0 deletions(-) create mode 100644 gcc/config/rtems.c diff --git a/gcc/config.gcc b/gcc/config.gcc index 1a0be50..6394551 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" + extra_objs="rtems.o" use_gcc_stdint=wrap ;; *-*-uclinux*) diff --git a/gcc/config/arm/rtems-eabi.h b/gcc/config/arm/rtems-eabi.h index 77fcf1a..a7ccdae 100644 --- a/gcc/config/arm/rtems-eabi.h +++ b/gcc/config/arm/rtems-eabi.h @@ -27,3 +27,6 @@ builtin_assert ("system=rtems"); \ TARGET_BPABI_CPP_BUILTINS(); \ } while (0) + +#undef SUBTARGET_OVERRIDE_OPTIONS +#define SUBTARGET_OVERRIDE_OPTIONS RTEMS_OVERRIDE_OPTIONS diff --git a/gcc/config/rs6000/rtems.h b/gcc/config/rs6000/rtems.h index b910b5e..cf53592 100644 --- a/gcc/config/rs6000/rtems.h +++ b/gcc/config/rs6000/rtems.h @@ -34,6 +34,9 @@ } \ while (0) +#undef SUBSUBTARGET_OVERRIDE_OPTIONS +#define SUBSUBTARGET_OVERRIDE_OPTIONS RTEMS_OVERRIDE_OPTIONS + #undef CPP_OS_DEFAULT_SPEC #define CPP_OS_DEFAULT_SPEC "%(cpp_os_rtems)" diff --git a/gcc/config/rtems.c b/gcc/config/rtems.c new file mode 100644 index 0000000..4250ba3 --- /dev/null +++ b/gcc/config/rtems.c @@ -0,0 +1,37 @@ +/* Common RTEMS target definitions for GNU compiler. + Copyright (C) 2013 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "target.h" +#include "tm.h" + +void +rtems_override_options (void) +{ + /* Use strict DWARF-2 unless specifically selected. This is a + workaround for a lack of tool support. */ + + if (!global_options_set.x_dwarf_strict) + dwarf_strict = 1; + + if (!global_options_set.x_dwarf_version) + dwarf_version = 2; +} diff --git a/gcc/config/rtems.h b/gcc/config/rtems.h index 4d94f82..8ea97fe 100644 --- a/gcc/config/rtems.h +++ b/gcc/config/rtems.h @@ -43,3 +43,7 @@ along with GCC; see the file COPYING3. If not see -lc -lgcc --end-group %{!qnolinkcmds: -T linkcmds%s}}}" #define TARGET_POSIX_IO + +/* Do RTEMS specific parts of TARGET_OPTION_OVERRIDE. */ +extern void rtems_override_options (void); +#define RTEMS_OVERRIDE_OPTIONS rtems_override_options () diff --git a/gcc/config/sparc/rtemself.h b/gcc/config/sparc/rtemself.h index 7a69dfa..2ee939c 100644 --- a/gcc/config/sparc/rtemself.h +++ b/gcc/config/sparc/rtemself.h @@ -29,5 +29,8 @@ along with GCC; see the file COPYING3. If not see } \ while (0) +#undef SUBTARGET_OVERRIDE_OPTIONS +#define SUBTARGET_OVERRIDE_OPTIONS RTEMS_OVERRIDE_OPTIONS + /* Use the default */ #undef LINK_GCC_C_SEQUENCE_SPEC diff --git a/gcc/config/t-rtems b/gcc/config/t-rtems index baa00d8..5a8e88a 100644 --- a/gcc/config/t-rtems +++ b/gcc/config/t-rtems @@ -1,2 +1,6 @@ # RTEMS always has limits.h. LIMITS_H_TEST = true + +rtems.o: $(srcdir)/config/rtems.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \ + $(TARGET_H) $(TM_H) + $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $< -- 1.7.7 _______________________________________________ rtems-devel mailing list rtems-de...@rtems.org http://www.rtems.org/mailman/listinfo/rtems-devel