Hi, the following patch fixes PR68468. Patch is used for a while in Buildroot without issues.
2016-11-05 Waldemar Brodkorb <w...@openadk.org> PR gcc/68468 * libgcc/unwind-dw2-fde-dip.c: fix build on FDPIC targets. diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c index f7a1c3f..801bce8 100644 --- a/libgcc/unwind-dw2-fde-dip.c +++ b/libgcc/unwind-dw2-fde-dip.c @@ -124,7 +124,11 @@ static struct frame_hdr_cache_element { _Unwind_Ptr pc_low; _Unwind_Ptr pc_high; +#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__ + struct elf32_fdpic_loadaddr load_base; +#else _Unwind_Ptr load_base; +#endif const ElfW(Phdr) *p_eh_frame_hdr; const ElfW(Phdr) *p_dynamic; struct frame_hdr_cache_element *link; @@ -163,7 +167,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr) struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr; const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic; long n, match; -#ifdef __FRV_FDPIC__ +#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__ struct elf32_fdpic_loadaddr load_base; #else _Unwind_Ptr load_base; @@ -347,7 +351,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr) break; } } -# elif defined __FRV_FDPIC__ && defined __linux__ +# elif (defined __FRV_FDPIC__ || defined __BFIN_FDPIC__) && defined __linux__ data->dbase = load_base.got_value; # else # error What is DW_EH_PE_datarel base on this platform? Best regards Waldemar