diff options
| author | Roland McGrath <roland@redhat.com> | 2008-05-09 15:43:44 -0700 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2008-06-09 11:27:00 -0700 |
| commit | 7fdd04485f827d178c02e4ede7d1781f3b8276cc (patch) | |
| tree | 13c844835aa767ea9f3471df38900489ff14751d /arch | |
| parent | 4715fd51f30c385fbc45ceb38dcd9a495487a2f8 (diff) | |
x86: user_regset_view table fix for ia32 on 64-bit
commit 1f465f4e475454b8bb590846c50a9d16e8046f3d upstream
The user_regset_view table for the 32-bit regsets on the 64-bit build had
the wrong sizes for the FP regsets. This bug had no user-visible effect
(just on kernel modules using the user_regset interfaces and the like).
But the fix is trivial and risk-free.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/ptrace.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index eb92ccbb3502..9003e0b03605 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -1382,6 +1382,9 @@ static const struct user_regset_view user_x86_64_view = { #define genregs32_get genregs_get #define genregs32_set genregs_set +#define user_i387_ia32_struct user_i387_struct +#define user32_fxsr_struct user_fxsr_struct + #endif /* CONFIG_X86_64 */ #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION @@ -1394,13 +1397,13 @@ static const struct user_regset x86_32_regsets[] = { }, [REGSET_FP] = { .core_note_type = NT_PRFPREG, - .n = sizeof(struct user_i387_struct) / sizeof(u32), + .n = sizeof(struct user_i387_ia32_struct) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), .active = fpregs_active, .get = fpregs_get, .set = fpregs_set }, [REGSET_XFP] = { .core_note_type = NT_PRXFPREG, - .n = sizeof(struct user_i387_struct) / sizeof(u32), + .n = sizeof(struct user32_fxsr_struct) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), .active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set }, |