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Diffstat (limited to 'sysdeps/sh/____longjmp_chk.S')
| -rw-r--r-- | sysdeps/sh/____longjmp_chk.S | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sysdeps/sh/____longjmp_chk.S b/sysdeps/sh/____longjmp_chk.S new file mode 100644 index 0000000000..2ff4f586ef --- /dev/null +++ b/sysdeps/sh/____longjmp_chk.S @@ -0,0 +1,70 @@ +/* Copyright (C) 2009 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + .section .rodata.str1.1,"aMS",@progbits,1 + .type longjmp_msg,@object +longjmp_msg: + .string "longjmp causes uninitialized stack frame" + .size longjmp_msg, .-longjmp_msg + .text + +#define __longjmp ____longjmp_chk + +#ifdef PIC +# define CALL_FAIL \ + mov.l .Lfail, r1; \ + mov.l .Lstr, r4; \ + mova .Lgot, r0; \ + mov.l .Lgot, r12; \ + add r0, r12; \ + bsrf r1; \ + add r12, r4; \ +.Lfail0: \ + bra 0f; \ + nop; \ + .align 2; \ +.Lgot: \ + .long _GLOBAL_OFFSET_TABLE_; \ +.Lstr: \ + .long longjmp_msg@GOTOFF; \ +.Lfail: \ + .long __GI___fortify_fail@PLT-(.Lfail0-.); \ +0: +#else +# define CALL_FAIL \ + mov.l .Lfail, r1; \ + mov.l .Lstr, r4; \ + jsr @r1; \ + nop; \ + bra 0f; \ + nop; \ + .align 2; \ +.Lstr: \ + .long longjmp_msg; \ +.Lfail: \ + .long __fortify_fail; \ +0: +#endif + +#define CHECK_SP(reg) \ + cmp/hs r15, reg; \ + bt .Lok; \ + CALL_FAIL \ +.Lok: + +#include <__longjmp.S> |