diff options
Diffstat (limited to 'sysdeps/x86/sysdep.h')
| -rw-r--r-- | sysdeps/x86/sysdep.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/x86/sysdep.h b/sysdeps/x86/sysdep.h index 837fd28734..485cad9c02 100644 --- a/sysdeps/x86/sysdep.h +++ b/sysdeps/x86/sysdep.h @@ -70,6 +70,12 @@ | (1 << X86_XSTATE_ZMM_H_ID)) #endif +/* States which should be saved for TLSDESC_CALL and TLS_DESC_CALL. + Compiler assumes that all registers, including x87 FPU stack registers, + are unchanged after CALL, except for EFLAGS and RAX/EAX. */ +#define TLSDESC_CALL_STATE_SAVE_MASK \ + (STATE_SAVE_MASK | (1 << X86_XSTATE_X87_ID)) + /* Constants for bits in __x86_string_control: */ /* Avoid short distance REP MOVSB. */ |