diff options
| -rw-r--r-- | sim/cris/ChangeLog | 5 | ||||
| -rw-r--r-- | sim/cris/traps.c | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/sim/cris/ChangeLog b/sim/cris/ChangeLog index 699e9e8..2963b90 100644 --- a/sim/cris/ChangeLog +++ b/sim/cris/ChangeLog @@ -1,3 +1,8 @@ +2010-10-07 Hans-Peter Nilsson <hp@axis.com> + + * traps.c (cris_break_13_handler): Pass lseek + offset parameter as sign-extended. + 2010-05-26 Ozkan Sezer <sezeroz@gmail.com> * dv-rv.c (hw_rv_init_socket): Check error return from socket() call diff --git a/sim/cris/traps.c b/sim/cris/traps.c index dfaaeed..1e17ce3 100644 --- a/sim/cris/traps.c +++ b/sim/cris/traps.c @@ -1478,6 +1478,14 @@ cris_break_13_handler (SIM_CPU *current_cpu, USI callnum, USI arg1, s.arg2 = arg2; s.arg3 = arg3; + /* The type of s.arg2 is long, so for hosts with 64-bit longs, we need + to sign-extend the lseek offset to be passed as a signed number, + else we'll truncate it to something > 2GB on hosts where sizeof + long > sizeof USI. We avoid doing it for all syscalls, as arg2 is + e.g. an address for some syscalls. */ + if (callnum == TARGET_SYS_lseek) + s.arg2 = (SI) arg2; + if (callnum == TARGET_SYS_exit_group || (callnum == TARGET_SYS_exit && current_cpu->m1threads == 0)) { |