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On Tuesday 17 May 2005 15:08, Joseph S. Myers wrote: > On Tue, 17 May 2005, Paul Brook wrote: > > The attached patch implements support for ARM EABI unwinding and c++ > > exception handling. The original patch (against csl-arm-branch) can be > > found here: http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02165.html > > Please make sure that each new function definition has a comment above it > describing what the function does and the significance of the arguments > and return value if any. Some functions (e.g. in config/arm/pr-support.c) > have no comments, others say nothing about the parameters. > > I think the documentation should refer to @code{true} and @code{false} > rather than @code{TRUE} and @code{FALSE}. tm.texi only refers to the > lowercase versions at present. The code has both, though I think we > should prefer the C99-and-C++-type lowercase versions for new code. Updated patch attached addresses these issues. No functional changes. Retested on arm-none-eabi and boostrapped i686-linux Ok? Paul 2004-05-16 Paul Brook <paul@codesourcery.com> gcc/ * Makefile.in: Set and use UNWIND_H. Install as unwind.h. * c-decl.c (finish_decl): Call default_init_unwind_resume_libfunc. * except.c (add_ehspec_entry): Generate arm eabi filter lists. (assign_filter_values): Ditto. (output_ttype): New function. (output_function_exception_table): Use output_ttype. Generate arm eabi filter lists. (default_init_unwind_resume_libfunc): New function. * except.h (default_init_unwind_resume_libfunc): Add prototype. * optabs.c (init_optabs): Don't set unwind_resume_libfunc. * opts.c (decode_options): Use targetm.unwind_tables_default. * target-def.h (TARGET_ASM_TTYPE): Provide and use definition. (TARGET_ARM_EABI_UNWINDER, TARGET_UNWIND_TABLES_DEFAULT): Ditto. * target.h (struct gcc_target): Add asm.ttype, unwind_tables_default and arm_eabi_unwinder. * unwind-c.c: Support Arm EABI unwinder. * unwind.h: Rename ... * unwind-generic.h: ... To this. * doc/tm.texi (TARGET_ASM_TTYPE, TARGET_ARM_EABI_UNWINDER): Document. * config/arm/arm-protos.h (arm_output_fn_unwind): Add prototype. * config/arm/arm.c (arm_unwind_emit, arm_output_ttype): New functions. (TARGET_UNWIND_EMIT, TARGET_ASM_TTYPE, TARGET_ARM_EABI_UNWINDER): Define. (thumb_pushpop, thumb_output_function_prologue): Output unwinding directives. (arm_unwind_emit_stm, arm_unwind_emit_set): New functions. * config/arm/arm.h (MUST_USE_SJLJ_EXCEPTIONS): Only define when !TARGET_UNWIND_INFO. (ARM_OUTPUT_FN_UNWIND, ARM_EABI_UNWIND_TABLES): Define. * config/arm/bpabi.h (TARGET_UNWIND_INFO): Define. * config/arm/elf.h (ASM_DECLARE_FUNCTION_NAME, ASM_DECLARE_FUNCTION_SIZE): Use ARM_OUTPUT_FN_UNWIND. * config/arm/lib1funcs.asm: Include libunwind.S. * config/arm/libgcc-bpabi.ver: Add unwinding routines. * config/arm/libunwind.S: New file. * config/arm/pr-support.c: New file. * config/arm/t-bpabi (LIB1ASMFUNCS): Add _unwind. (UNWIND_H, LIB2ADDEH, LIB2ADDEHDEP): Set. * config/arm/t-symbian (UNWIND_H, LIB2ADDEH, LIB2ADDEHDEP): Set. * config/arm/unwind-arm.c: New file. * config/arm/unwind-arm.h: New file. * config/i386/t-netware (USER_H): Remove unwind.h. * config/ia64/ia64.h (TARGET_UNWIND_TABLES_DEFAULT): Define. gcc/cp/ * Make-lang.in (cp/except.o): Depend on $(TARGET_H) * except.c: Include target.h. (init_exception_processing): Initialize unwind_resume_libfunc. * doc/tm.texi: Document TARGET_ASM_TTYPE gcc/ada/ * misc.c (gnat_init_gcc_eh): Call default_init_unwind_resume_libfunc. gcc/java/ * decl.c (java_init_decl_processing): Call default_init_unwind_resume_libfunc. gcc/objc/ * objc-act.c (objc_init_exceptions): Call default_init_unwind_resume_libfunc. libstdc++/ * acinclude.m4 (GLIBCXX_ENABLE_SJLJ_EXCEPTIONS): Check for __cxa_end_cleanup. * libsupc++/Makefile.am (sources): Add eh_call.c and eh_arm.c. * libsupc++/eh_arm.cc: New file. * libsupc++/eh_call.cc: New file. * libsupc++/eh_catch.cc (__cxa_get_exception_ptr): Use __gxx_caught_object. (__cxa_begin_catch): Ditto. Use __is_gxx_exception_class. Call _Unwind_Complete when using the ARM EABI. (__cxa_end_catch): Use __is_gxx_exception_class. * libsupc++/eh_personality.cc: Define NO_SIZE_OF_ENCODED_VALUE when using the ARM EABI. (save_caught_exception, restore_caught_exception): New functions. (_throw_typet): New typedef. (get_ttype_entry, get_adjusted_ptr, check_exception_spec): Add ARM EABI implementations. (PERSONALITY_FUNCTION): Use new functions. Addd support for ARM EABI unwinding libary. (__cxa_unexpected): Disable when using the ARM EABI. * libsupc++/eh_throw.cc (__cxa_throw): Use __GXX_INIT_EXCEPTION_CLASS. (__cxa_rethrow): Use __is_gxx_exception_class. Call _Unwind_RaiseException when using the ARM EABI. * libsupc++/unwind-cxx.h (struct __cxa_exception): Add fields for ARM EABI semantics. (struct __cxa_eh_globals): Ditto. (__cxa_call_terminate): Add prototype. (__cxa_type_match, __cxa_begin_cleanup, __cxa_end_cleanup): Add prototypes. (__get_exception_header_from_obj, __get_exception_header_from_ue): Move earlier in file. (__is_gxx_exception_class, __GXX_INIT_EXCEPTION_CLASS, __gxx_caught_object): New functions. * aclocal.m4: Regenerate. * configure: Regenerate. * Makefile.in: Regenerate. * include/Makefile.in: Regenerate. * libmath/Makefile.in: Regenerate. * libsupc++/Makefile.in: Regenerate. * po/Makefile.in: Regenerate. * src/Makefie.in: Regenerate. * testsuite/makefile.in: Regenerate.
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