Just for completeness, here's what happens if I manually switch back to ARM when we hit caml_start_program:
# gdb --args /mnt/a.out GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2 Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "arm-linux-gnueabi". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /mnt/a.out...(no debugging symbols found)...done. (gdb) set arm force-mode thumb (gdb) b *0x14f94 Breakpoint 1 at 0x14f94 (gdb) r Starting program: /mnt/a.out Breakpoint 1, 0x00014f94 in caml_start_program () (gdb) disable 1 (gdb) set arm force-mode auto (gdb) set $cpsr &= ~0x20 (gdb) c Continuing. Program exited normally. -- You received this bug notification because you are a member of Debian OCaml Maintainers, which is subscribed to ocaml in Ubuntu. https://bugs.launchpad.net/bugs/810402 Title: all native ocaml programs segfault on armel Status in Linaro Binutils: New Status in “binutils” package in Ubuntu: Confirmed Status in “ocaml” package in Ubuntu: Confirmed Status in “binutils” source package in Oneiric: Confirmed Status in “ocaml” source package in Oneiric: Confirmed Bug description: Starting from version 2.21.52.20110606-1ubuntu1 (in oneiric), all programs produced by ocamlopt segfault on Ubuntu/armel. The problem disappears after downgrading binutils to 2.21.51.20110421-6ubuntu1. Steps to reproduce: echo > empty.ml && ocamlopt empty.ml && ./a.out Using the "-S" option of ocamlopt might be useful, to have a look at the generated assembly code, but I don't know what to look for... I hope someone more familiar with binutils code can help. I found that while investigating the recent build failures of ocaml stuff or armel. Everything works find in the armel port of Debian. To manage notifications about this bug go to: https://bugs.launchpad.net/binutils-linaro/+bug/810402/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ocaml-maint Post to : [email protected] Unsubscribe : https://launchpad.net/~ocaml-maint More help : https://help.launchpad.net/ListHelp
