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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-03-04 19:11:26 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2018-03-11 13:06:33 +0100 |
| commit | a5df0318ef30a4dcff3fa2cb82265f641813d9ea (patch) | |
| tree | 68dac2abbbf7703f55aa067cdc19e06e98babe83 /sysdeps/mach | |
| parent | 0d13dfa17b3bdf4f5ccc179869917cc65f009e7a (diff) | |
| download | glibc-a5df0318ef30a4dcff3fa2cb82265f641813d9ea.tar.gz glibc-a5df0318ef30a4dcff3fa2cb82265f641813d9ea.tar.xz glibc-a5df0318ef30a4dcff3fa2cb82265f641813d9ea.zip | |
hurd: add gscope support
* elf/dl-support.c [!THREAD_GSCOPE_IN_TCB] (_dl_thread_gscope_count): Define variable. * sysdeps/generic/ldsodefs.h [!THREAD_GSCOPE_IN_TCB] (struct rtld_global): Add _dl_thread_gscope_count member. * sysdeps/mach/hurd/tls.h: Include <atomic.h>. [!defined __ASSEMBLER__] (THREAD_GSCOPE_GLOBAL, THREAD_GSCOPE_SET_FLAG, THREAD_GSCOPE_RESET_FLAG, THREAD_GSCOPE_WAIT): Define macros. * sysdeps/generic/tls.h: Document THREAD_GSCOPE_IN_TCB. * sysdeps/aarch64/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/alpha/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/arm/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/hppa/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/i386/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/ia64/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/m68k/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/microblaze/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/mips/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/nios2/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/powerpc/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/riscv/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/s390/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/sh/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/sparc/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/tile/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1. * sysdeps/x86_64/nptl/tls.h: Define THREAD_GSCOPE_IN_TCB to 1.
Diffstat (limited to 'sysdeps/mach')
| -rw-r--r-- | sysdeps/mach/hurd/tls.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/tls.h b/sysdeps/mach/hurd/tls.h index faff87c7b5..67c657b655 100644 --- a/sysdeps/mach/hurd/tls.h +++ b/sysdeps/mach/hurd/tls.h @@ -27,6 +27,7 @@ # include <sysdep.h> # include <mach/mig_errors.h> # include <mach.h> +# include <atomic.h> /* This is the size of the initial TCB. */ @@ -51,6 +52,26 @@ # define GET_DTV(descr) \ (((tcbhead_t *) (descr))->dtv) +/* Global scope switch support. */ +#define THREAD_GSCOPE_IN_TCB 0 +#define THREAD_GSCOPE_GLOBAL +#define THREAD_GSCOPE_SET_FLAG() \ + atomic_exchange_and_add_acq (&GL(dl_thread_gscope_count), 1) +#define THREAD_GSCOPE_RESET_FLAG() \ + do \ + if (atomic_exchange_and_add_rel (&GL(dl_thread_gscope_count), -1) == 1) \ + lll_wake (&GL(dl_thread_gscope_count), 0); \ + while (0) +#define THREAD_GSCOPE_WAIT() \ + do \ + { \ + int count; \ + atomic_write_barrier (); \ + while ((count = GL(dl_thread_gscope_count))) \ + lll_wait (&GL(dl_thread_gscope_count), count, 0); \ + } \ + while (0) + #endif /* !ASSEMBLER */ |