diff options
Diffstat (limited to 'sysdeps/powerpc/nptl/tls.h')
| -rw-r--r-- | sysdeps/powerpc/nptl/tls.h | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/sysdeps/powerpc/nptl/tls.h b/sysdeps/powerpc/nptl/tls.h index 1f3d97a995..0e889bc122 100644 --- a/sysdeps/powerpc/nptl/tls.h +++ b/sysdeps/powerpc/nptl/tls.h @@ -1,5 +1,5 @@ /* Definition for thread-local data handling. NPTL/PowerPC version. - Copyright (C) 2003-2015 Free Software Foundation, Inc. + Copyright (C) 2003-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -44,6 +44,8 @@ typedef union dtv #ifndef __ASSEMBLER__ +# include <hwcapinfo.h> + /* Get system call information. */ # include <sysdep.h> @@ -63,8 +65,24 @@ typedef union dtv are private. */ typedef struct { + /* Reservation for HWCAP data. To be accessed by GCC in + __builtin_cpu_supports(), so it is a part of public ABI. */ + uint64_t hwcap; + /* Reservation for AT_PLATFORM data. To be accessed by GCC in + __builtin_cpu_is(), so it is a part of public ABI. Since there + are different ABIs for 32 and 64 bit, we put this field in a + previously empty padding space for powerpc64. */ +#ifndef __powerpc64__ + /* Padding to maintain alignment. */ + uint32_t padding; + uint32_t at_platform; +#endif /* Indicate if HTM capable (ISA 2.07). */ - int tm_capable; + uint32_t tm_capable; + /* Reservation for AT_PLATFORM data - powerpc64. */ +#ifdef __powerpc64__ + uint32_t at_platform; +#endif /* Reservation for Dynamic System Optimizer ABI. */ uintptr_t dso_slot2; uintptr_t dso_slot1; @@ -134,7 +152,9 @@ register void *__thread_register __asm__ ("r13"); # define TLS_INIT_TP(tcbp) \ ({ \ __thread_register = (void *) (tcbp) + TLS_TCB_OFFSET; \ - THREAD_SET_TM_CAPABLE (GLRO (dl_hwcap2) & PPC_FEATURE2_HAS_HTM ? 1 : 0); \ + THREAD_SET_TM_CAPABLE (__tcb_hwcap & PPC_FEATURE2_HAS_HTM ? 1 : 0); \ + THREAD_SET_HWCAP (__tcb_hwcap); \ + THREAD_SET_AT_PLATFORM (__tcb_platform); \ NULL; \ }) @@ -142,7 +162,11 @@ register void *__thread_register __asm__ ("r13"); # define TLS_DEFINE_INIT_TP(tp, pd) \ void *tp = (void *) (pd) + TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE; \ (((tcbhead_t *) ((char *) tp - TLS_TCB_OFFSET))[-1].tm_capable) = \ - THREAD_GET_TM_CAPABLE (); + THREAD_GET_TM_CAPABLE (); \ + (((tcbhead_t *) ((char *) tp - TLS_TCB_OFFSET))[-1].hwcap) = \ + THREAD_GET_HWCAP (); \ + (((tcbhead_t *) ((char *) tp - TLS_TCB_OFFSET))[-1].at_platform) = \ + THREAD_GET_AT_PLATFORM (); /* Return the address of the dtv for the current thread. */ # define THREAD_DTV() \ @@ -203,6 +227,20 @@ register void *__thread_register __asm__ ("r13"); # define THREAD_SET_TM_CAPABLE(value) \ (THREAD_GET_TM_CAPABLE () = (value)) +/* hwcap field in TCB head. */ +# define THREAD_GET_HWCAP() \ + (((tcbhead_t *) ((char *) __thread_register \ + - TLS_TCB_OFFSET))[-1].hwcap) +# define THREAD_SET_HWCAP(value) \ + (THREAD_GET_HWCAP () = (value)) + +/* at_platform field in TCB head. */ +# define THREAD_GET_AT_PLATFORM() \ + (((tcbhead_t *) ((char *) __thread_register \ + - TLS_TCB_OFFSET))[-1].at_platform) +# define THREAD_SET_AT_PLATFORM(value) \ + (THREAD_GET_AT_PLATFORM () = (value)) + /* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some different value to mean unset l_tls_offset. */ # define NO_TLS_OFFSET -1 |