diff options
| -rw-r--r-- | gdb/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/i386-darwin-nat.c | 9 |
2 files changed, 15 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 336a3c1..62d1d06 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,9 @@ +2014-10-16 Tristan Gingold <gingold@adacore.com> + + * i386-darwin-nat.c (i386_darwin_fetch_inferior_registers) + (i386_darwin_store_inferior_registers): Sanitize gs and fs values + on amd64. + 2014-10-15 Pedro Alves <palves@redhat.com> * dec-thread.c (dec_thread_count_gdb_threads) diff --git a/gdb/i386-darwin-nat.c b/gdb/i386-darwin-nat.c index a60bc6c..f99e415 100644 --- a/gdb/i386-darwin-nat.c +++ b/gdb/i386-darwin-nat.c @@ -73,6 +73,11 @@ i386_darwin_fetch_inferior_registers (struct target_ops *ops, (unsigned long) current_thread); MACH_CHECK_ERROR (ret); } + + /* Some kernels don't sanitize the values. */ + gp_regs.uts.ts64.__fs &= 0xffff; + gp_regs.uts.ts64.__gs &= 0xffff; + amd64_supply_native_gregset (regcache, &gp_regs.uts, -1); fetched++; } @@ -183,6 +188,10 @@ i386_darwin_store_inferior_registers (struct target_ops *ops, amd64_collect_native_gregset (regcache, &gp_regs.uts, regno); + /* Some kernels don't sanitize the values. */ + gp_regs.uts.ts64.__fs &= 0xffff; + gp_regs.uts.ts64.__gs &= 0xffff; + ret = thread_set_state (current_thread, x86_THREAD_STATE, (thread_state_t) &gp_regs, x86_THREAD_STATE_COUNT); |