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| author | Richard Henderson <rth@twiddle.net> | 2016-07-12 13:12:50 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-10-31 09:46:25 -0600 |
| commit | 2f9d35fc4006122bad33f9ae3e2e51d2263e98ee (patch) | |
| tree | f6499fba9d4ce0cc5c0860fff9ea939784257ded /target-sparc/translate.c | |
| parent | 808832277af11dafee5a55da2b9e41d019b879ca (diff) | |
| download | qemu-2f9d35fc4006122bad33f9ae3e2e51d2263e98ee.zip qemu-2f9d35fc4006122bad33f9ae3e2e51d2263e98ee.tar.gz qemu-2f9d35fc4006122bad33f9ae3e2e51d2263e98ee.tar.bz2 | |
target-sparc: Introduce cpu_raise_exception_ra
Several helpers call helper_raise_exception directly, which requires
in turn that their callers have performed save_state. The new function
allows a TCG return address to be passed in so that we can restore
PC + NPC + flags data from that.
This fixes a bug in the usage of helper_check_align, whose callers had
not been calling save_state. It fixes another bug in which the divide
helpers used GETPC at a level other than the direct callee from TCG.
This allows the translator to avoid save_state prior to SAVE, RESTORE,
and FLUSHW instructions.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-sparc/translate.c')
| -rw-r--r-- | target-sparc/translate.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c index ec4a73a..ee7bbc4 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -3458,7 +3458,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn) break; } else if (xop == 0x2b) { /* rdtbr / V9 flushw */ #ifdef TARGET_SPARC64 - save_state(dc); gen_helper_flushw(cpu_env); #else if (!supervisor(dc)) @@ -5062,12 +5061,10 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn) /* nop */ break; case 0x3c: /* save */ - save_state(dc); gen_helper_save(cpu_env); gen_store_gpr(dc, rd, cpu_tmp0); break; case 0x3d: /* restore */ - save_state(dc); gen_helper_restore(cpu_env); gen_store_gpr(dc, rd, cpu_tmp0); break; |