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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-01-23 12:11:17 -1000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-01-24 08:03:27 -1000 |
| commit | ae30e86661b0f48562cd95918d37cbeec5d02262 (patch) | |
| tree | bd84c59f604bae6c128f02b06b4607433a13d2df /include/tcg | |
| parent | 653b87eb36045b506b79f0bb433016ef1c54bc9a (diff) | |
| download | qemu-ae30e86661b0f48562cd95918d37cbeec5d02262.zip qemu-ae30e86661b0f48562cd95918d37cbeec5d02262.tar.gz qemu-ae30e86661b0f48562cd95918d37cbeec5d02262.tar.bz2 | |
tcg: Restart code generation when we run out of temps
Some large translation blocks can generate so many unique
constants that we run out of temps to hold them. In this
case, longjmp back to the start of code generation and
restart with a smaller translation block.
Buglink: https://bugs.launchpad.net/bugs/1912065
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/tcg')
| -rw-r--r-- | include/tcg/tcg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index c5a9d65..0f0695e 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -680,6 +680,9 @@ struct TCGContext { uint16_t gen_insn_end_off[TCG_MAX_INSNS]; target_ulong gen_insn_data[TCG_MAX_INSNS][TARGET_INSN_START_WORDS]; + + /* Exit to translator on overflow. */ + sigjmp_buf jmp_trans; }; static inline bool temp_readonly(TCGTemp *ts) |