+ arm maintainers. Hi Pierre,
> On 14 Jul 2025, at 14:07, Pierre Ossman <oss...@cendio.se> wrote: > > Suggested fix for this issue: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60428 > > Did not get any response there, so seeing if this is a better forum for > suggested changes. > > We've been using this patch for years without any known issues. > > Regards, > -- > Pierre Ossman Software Development > Cendio AB https://cendio.com > Teknikringen 8 https://twitter.com/ThinLinc > 583 30 Linköping https://facebook.com/ThinLinc > Phone: +46-13-214600 > > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? diff -up gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c.arm-c-unwind gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c --- gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c.arm-c-unwind 2015-05-20 12:54:39.617322792 +0200 +++ gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c 2015-05-20 12:54:39.617322792 +0200 @@ -0,0 +1,54 @@ +/* ARM EABI dummy unwinding routines. + Copyright 2014 Pierre Ossman for Cendio AB + + This file 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. IANAL but for one the date should include at least the current year. Also, I believe you need to either ensure you have the paperwork sorted to contribute the copyright to the FSF (see the copyright notice in other files in that directory) or otherwise contribute under the DCO as per: https://gcc.gnu.org/dco.html I cannot recommend one option or the other, that’s something for you (and your employer?) to agree on. Thanks, Kyrill
diff -up gcc-5.1.0/libgcc/config/arm/t-bpabi.arm-c-unwind gcc-5.1.0/libgcc/config/arm/t-bpabi --- gcc-5.1.0/libgcc/config/arm/t-bpabi.arm-c-unwind 2012-08-17 17:06:06.000000000 +0200 +++ gcc-5.1.0/libgcc/config/arm/t-bpabi 2015-05-20 12:56:19.751653982 +0200 @@ -3,7 +3,8 @@ LIB1ASMFUNCS += _aeabi_lcmp _aeabi_ulcmp # Add the BPABI C functions. LIB2ADD += $(srcdir)/config/arm/bpabi.c \ - $(srcdir)/config/arm/unaligned-funcs.c + $(srcdir)/config/arm/unaligned-funcs.c \ + $(srcdir)/config/arm/unwind-arm-dummy.c LIB2ADD_ST += $(srcdir)/config/arm/fp16.c diff -up gcc-5.1.0/libgcc/config/arm/unwind-arm.c.arm-c-unwind gcc-5.1.0/libgcc/config/arm/unwind-arm.c --- gcc-5.1.0/libgcc/config/arm/unwind-arm.c.arm-c-unwind 2015-01-05 13:33:28.000000000 +0100 +++ gcc-5.1.0/libgcc/config/arm/unwind-arm.c 2015-05-20 12:54:39.617322792 +0200 @@ -144,11 +144,11 @@ restore_non_core_regs (phase1_vrs * vrs) /* ABI defined personality routines. */ extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0 (_Unwind_State, - _Unwind_Control_Block *, _Unwind_Context *);// __attribute__((weak)); + _Unwind_Control_Block *, _Unwind_Context *); extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1 (_Unwind_State, - _Unwind_Control_Block *, _Unwind_Context *) __attribute__((weak)); + _Unwind_Control_Block *, _Unwind_Context *); extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2 (_Unwind_State, - _Unwind_Control_Block *, _Unwind_Context *) __attribute__((weak)); + _Unwind_Control_Block *, _Unwind_Context *); /* ABI defined routine to store a virtual register to memory. */ diff -up gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c.arm-c-unwind gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c --- gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c.arm-c-unwind 2015-05-20 12:54:39.617322792 +0200 +++ gcc-5.1.0/libgcc/config/arm/unwind-arm-dummy.c 2015-05-20 12:54:39.617322792 +0200 @@ -0,0 +1,54 @@ +/* ARM EABI dummy unwinding routines. + Copyright 2014 Pierre Ossman for Cendio AB + + This file 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. + + This file 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. + + Under Section 7 of GPL version 3, you are granted additional + permissions described in the GCC Runtime Library Exception, version + 3.1, as published by the Free Software Foundation. + + You should have received a copy of the GNU General Public License and + a copy of the GCC Runtime Library Exception along with this program; + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "unwind.h" + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0 (_Unwind_State, + _Unwind_Control_Block *, _Unwind_Context *) __attribute__((weak)); +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1 (_Unwind_State, + _Unwind_Control_Block *, _Unwind_Context *) __attribute__((weak)); +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2 (_Unwind_State, + _Unwind_Control_Block *, _Unwind_Context *) __attribute__((weak)); + +_Unwind_Reason_Code +__aeabi_unwind_cpp_pr0 (_Unwind_State state, + _Unwind_Control_Block *ucbp, + _Unwind_Context *context) +{ + return _URC_FAILURE; +} + +_Unwind_Reason_Code +__aeabi_unwind_cpp_pr1 (_Unwind_State state, + _Unwind_Control_Block *ucbp, + _Unwind_Context *context) +{ + return _URC_FAILURE; +} + +_Unwind_Reason_Code +__aeabi_unwind_cpp_pr2 (_Unwind_State state, + _Unwind_Control_Block *ucbp, + _Unwind_Context *context) +{ + return _URC_FAILURE; +}
