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https://github.com/riscv-software-src/riscv-isa-sim.git
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a191144b7a
Building of spike-based simulator with memory sanitizer reports leaking pointers if custom extension are used. This is because existing facilities do not have a proper destructor procedure, so the objects representing custom extentions are leaked. This commit implements quick-and-dirty fix for the problem.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
#include "insn_macros.h"
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#include "extension.h"
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#include "decode_macros.h"
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#include <cstring>
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struct : public arg_t {
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std::string to_string(insn_t insn) const {
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return xpr_name[insn.rs1()];
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}
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} xrs1;
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static reg_t custom_cflush(processor_t* p, insn_t insn, reg_t pc)
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{
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require_privilege(PRV_M);
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return pc + 4; \
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}
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class cflush_t : public extension_t
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{
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public:
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const char* name() const override { return "cflush"; }
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cflush_t() {}
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std::vector<insn_desc_t> get_instructions(const processor_t &) override {
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std::vector<insn_desc_t> insns = {
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{0xFC000073, 0xFFF07FFF, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush},
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{0xFC200073, 0xFFF07FFF, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush},
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{0xFC100073, 0xFFF07FFF, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush, custom_cflush}};
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return insns;
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}
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std::vector<disasm_insn_t *> get_disasms(const processor_t *) override {
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std::vector<disasm_insn_t*> insns = {
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new disasm_insn_t("cflush.d.l1", 0xFC000073, 0xFFF07FFF, {&xrs1}),
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new disasm_insn_t("cdiscard.d.l1", 0xFC200073, 0xFFF07FFF, {&xrs1}),
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new disasm_insn_t("cflush.i.l1", 0xFC100073, 0xFFF07FFF, {&xrs1})};
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return insns;
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}
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};
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REGISTER_EXTENSION(cflush, []() { static cflush_t ext; return &ext; })
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