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| author | Roland McGrath <roland@redhat.com> | 2008-05-09 15:43:44 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-05-13 19:40:20 +0200 |
| commit | 1f465f4e475454b8bb590846c50a9d16e8046f3d (patch) | |
| tree | 1e76b18f74a9f15e8f800296e6a75f4fc910a0f7 | |
| parent | afc85343807bc2c488b7372cd7547875dfe03fe5 (diff) | |
| download | linux-1f465f4e475454b8bb590846c50a9d16e8046f3d.tar.bz2 | |
x86: user_regset_view table fix for ia32 on 64-bit
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>
| -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 fb03ef380f0e..a7835f282936 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c @@ -1303,6 +1303,9 @@ 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 @@ -1315,13 +1318,13 @@ 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 }, |