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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-09-08 01:06:46 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-09-08 01:06:46 +0200 |
| commit | f1e3d1e78f8e72bfb2e518ac0ad5ea273dc54b76 (patch) | |
| tree | 6caf96fdfe0cbcf5680f7e6486e875877b3ff0da /i386 | |
| parent | e10d0db83b66678a215572d84d23576f5df5a774 (diff) | |
| download | gnumach-f1e3d1e78f8e72bfb2e518ac0ad5ea273dc54b76.tar.gz gnumach-f1e3d1e78f8e72bfb2e518ac0ad5ea273dc54b76.tar.bz2 gnumach-f1e3d1e78f8e72bfb2e518ac0ad5ea273dc54b76.zip | |
fpu_set_state: return an error on incoherent fp_save_kind
Diffstat (limited to 'i386')
| -rw-r--r-- | i386/i386/fpu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/i386/i386/fpu.c b/i386/i386/fpu.c index 43771e7f..cf7d51cd 100644 --- a/i386/i386/fpu.c +++ b/i386/i386/fpu.c @@ -407,6 +407,8 @@ fpu_set_state(const thread_t thread, void *state, int flavor) ASSERT_IPL(SPL0); if (fp_kind == FP_NO) return KERN_FAILURE; + if ((flavor == i386_XFLOAT_STATE) && (xfstate->fp_save_kind != fp_save_kind)) + return KERN_INVALID_ARGUMENT; #if NCPUS == 1 @@ -494,7 +496,7 @@ ASSERT_IPL(SPL0); ifps->fp_save_state.fp_ds = user_fp_state->fp_ds; ifps->fp_regs = *user_fp_regs; } - } else if ((flavor == i386_XFLOAT_STATE) && (xfstate->fp_save_kind == fp_save_kind)) { + } else if (flavor == i386_XFLOAT_STATE) { int i; struct i386_xfp_save *user_fp_state = (struct i386_xfp_save *) &xfstate->hw_state[0]; ifps->xfp_save_state.fp_control = user_fp_state->fp_control; |