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target/xtensa: statically allocate xtensa_insnbufs in DisasContext

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Rather than dynamically allocate, and risk failing to free
when we longjmp out of the translator, allocate the maximum
buffer size based on the maximum supported instruction length.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Max Filippov 2020-04-06 20:59:54 -07:00
parent 1a03362b14
commit fde557ad25
3 changed files with 6 additions and 16 deletions
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3
target/xtensa/cpu.h
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@ -213,6 +213,9 @@ enum {
#define MEMCTL_IL0EN 0x1
#define MAX_INSN_LENGTH 64
#define MAX_INSNBUF_LENGTH \
((MAX_INSN_LENGTH + sizeof(xtensa_insnbuf_word) - 1) / \
sizeof(xtensa_insnbuf_word))
#define MAX_INSN_SLOTS 32
#define MAX_OPCODE_ARGS 16
#define MAX_NAREG 64