diff options
Diffstat (limited to 'target/xtensa')
| -rw-r--r-- | target/xtensa/cpu.h | 3 | ||||
| -rw-r--r-- | target/xtensa/helper.c | 1 | ||||
| -rw-r--r-- | target/xtensa/translate.c | 18 |
3 files changed, 6 insertions, 16 deletions
diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index c0d69fa..7a46dcc 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -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 diff --git a/target/xtensa/helper.c b/target/xtensa/helper.c index 376a61f..7073381 100644 --- a/target/xtensa/helper.c +++ b/target/xtensa/helper.c @@ -96,6 +96,7 @@ static void init_libisa(XtensaConfig *config) config->isa = xtensa_isa_init(config->isa_internal, NULL, NULL); assert(xtensa_isa_maxlength(config->isa) <= MAX_INSN_LENGTH); + assert(xtensa_insnbuf_size(config->isa) <= MAX_INSNBUF_LENGTH); opcodes = xtensa_isa_num_opcodes(config->isa); formats = xtensa_isa_num_formats(config->isa); regfiles = xtensa_isa_num_regfiles(config->isa); diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index 1010c1c..e0beaf7 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -72,8 +72,8 @@ struct DisasContext { unsigned cpenable; uint32_t op_flags; - xtensa_insnbuf insnbuf; - xtensa_insnbuf slotbuf; + xtensa_insnbuf_word insnbuf[MAX_INSNBUF_LENGTH]; + xtensa_insnbuf_word slotbuf[MAX_INSNBUF_LENGTH]; }; static TCGv_i32 cpu_pc; @@ -1173,16 +1173,6 @@ static void xtensa_tr_init_disas_context(DisasContextBase *dcbase, dc->cwoe = tb_flags & XTENSA_TBFLAG_CWOE; dc->callinc = ((tb_flags & XTENSA_TBFLAG_CALLINC_MASK) >> XTENSA_TBFLAG_CALLINC_SHIFT); - - /* - * FIXME: This will leak when a failed instruction load or similar - * event causes us to longjump out of the translation loop and - * hence not clean-up in xtensa_tr_tb_stop - */ - if (dc->config->isa) { - dc->insnbuf = xtensa_insnbuf_alloc(dc->config->isa); - dc->slotbuf = xtensa_insnbuf_alloc(dc->config->isa); - } init_sar_tracker(dc); } @@ -1272,10 +1262,6 @@ static void xtensa_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) DisasContext *dc = container_of(dcbase, DisasContext, base); reset_sar_tracker(dc); - if (dc->config->isa) { - xtensa_insnbuf_free(dc->config->isa, dc->insnbuf); - xtensa_insnbuf_free(dc->config->isa, dc->slotbuf); - } if (dc->icount) { tcg_temp_free(dc->next_icount); } |