From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krister Walfridsson To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org Subject: Re: c++/4356: Exception handling does not work at all for NetBSD/i386ELF target Date: Tue, 16 Oct 2001 14:36:00 -0000 Message-id: <20011016213601.26602.qmail@sourceware.cygnus.com> X-SW-Source: 2001-10/msg00337.html List-Id: The following reply was made to PR c++/4356; it has been noted by GNATS. From: Krister Walfridsson To: Richard Henderson Cc: , , , , Subject: Re: c++/4356: Exception handling does not work at all for NetBSD/i386 ELF target Date: Tue, 16 Oct 2001 23:31:23 +0200 (MEST) On Tue, 16 Oct 2001, Richard Henderson wrote: > On Mon, Oct 15, 2001 at 11:25:45PM +0200, Krister Walfridsson wrote: > > * config/i386/netbsd-elf.h (ASM_OUTPUT_ADDR_DIFF_ELT): Define. > > (JUMP_TABLES_IN_TEXT_SECTION): Define. > > Err.. This has nothing at all to do with exception handling. > It has everything to do with switch statements. Well, in the process of throwing/catching an exception we run some code. Among other, the function read_encoded_value_with_base() in eh_personality.cc. And that function has a switch statment... Sorry for being unclear about the actual failure in my previous mail. > So what is the actual problem here, given that readonly_data_section > will fall back to text_section on a.out systems? But this is not an a.out system... Actually I have no clue if JUMP_TABLES_IN_TEXT_SECTION is needed, but the FreeBSD ELF version has a comment claiming it is necessary. And NetBSD and FreeBSD is nearly identical, so if it is needed by FreeBSD, then it is needed by NetBSD too... /Krister