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| author | Jakub Jelinek <jakub@redhat.com> | 2007-07-12 18:26:36 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2007-07-12 18:26:36 +0000 |
| commit | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch) | |
| tree | 2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sysdeps/unix/sysv/linux/sh/sysdep.h | |
| parent | 7d58530341304d403a6626d7f7a1913165fe2f32 (diff) | |
| download | glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.xz glibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.zip | |
2.5-18.1
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/sysdep.h | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/sysdep.h b/sysdeps/unix/sysv/linux/sh/sysdep.h index d56ec454f9..f0be37edc8 100644 --- a/sysdeps/unix/sysv/linux/sh/sysdep.h +++ b/sysdeps/unix/sysv/linux/sh/sysdep.h @@ -1,5 +1,5 @@ -/* Copyright (C) 1992,1993,1995,1996,1997,1998,1999,2000,2002,2003,2004 - Free Software Foundation, Inc. +/* Copyright (C) 1992,1993,1995,1996,1997,1998,1999,2000,2002,2003,2004, + 2005,2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995. Changed by Kaz Kojima, <kkojima@rr.iij4u.or.jp>. @@ -24,6 +24,7 @@ /* There is some commonality. */ #include <sysdeps/unix/sh/sysdep.h> +#include <tls.h> /* For Linux we can use the system call table in the header file /usr/include/asm/unistd.h @@ -104,7 +105,7 @@ mova 0f,r0; \ add r0,r12; \ mov.l 1f,r0; \ - mov.l r1,@(r0,r12) + mov.l r1,@(r0,r12); \ bra .Lpseudo_end; \ mov _IMM1,r0; \ .align 2; \ @@ -140,13 +141,22 @@ # define SYSCALL_ERROR_HANDLER \ neg r0,r1; \ mov.l r14,@-r15; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (r14, 0); \ mov.l r12,@-r15; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (r12, 0); \ mov.l r1,@-r15; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (r1, 0); \ mov.l 0f,r12; \ mova 0f,r0; \ add r0,r12; \ sts.l pr,@-r15; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (pr, 0); \ mov r15,r14; \ + cfi_def_cfa_register (r14); \ mov.l 1f,r1; \ bsrf r1; \ nop; \ @@ -359,4 +369,23 @@ #endif /* __ASSEMBLER__ */ +/* Pointer mangling support. */ +#if defined NOT_IN_libc && defined IS_IN_rtld +/* We cannot use the thread descriptor because in ld.so we use setjmp + earlier than the descriptor is initialized. Using a global variable + is too complicated here since we have no PC-relative addressing mode. */ +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(reg, tmp) \ + stc gbr,tmp; mov.l @(POINTER_GUARD,tmp),tmp; xor tmp,reg +# define PTR_MANGLE2(reg, tmp) xor tmp,reg +# define PTR_DEMANGLE(reg, tmp) PTR_MANGLE (reg, tmp) +# define PTR_DEMANGLE2(reg, tmp) PTR_MANGLE2 (reg, tmp) +# else +# define PTR_MANGLE(var) \ + (var) = (void *) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ()) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#endif + #endif /* linux/sh/sysdep.h */ |