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dkim=pass reason="pass (just generated, assumed good)" header.d=opensource.wdc.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d= opensource.wdc.com; h=content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:subject:to :from; s=dkim; t=1656807163; x=1659399164; bh=iFrMNgZb795PtkupPW dOdfi4pfpHCJ8j6NfcibHYPh4=; b=SxXixKRXfoibeN/S1VmI2Q7tEh/bZrQiLA d90EpKB7Xv1D+cXpTbb57wBHHfRSi2dv8Wdg+nk6FsJsLzElZPDOhximYGxhzSlA 19HRMhm8aZGVBHkAe4/TT2UNvkZqB3exO58lYyjl6BqWw6JwCTY9N4+JgcmWZ10/ I5EvPfP/XtxLnf30fQLAM97F5MKcsx1Fp5j1s1mEzuABCh6yFaYm/PVSGu8F//gc Nowq1z+LtHX+dd9oKKztlXr+mGMGNal783ZP4xkICVioIAiEmG2bbLStaqotC7gJ X60eXkGVp+laQFCVXtxs0hYQMZ5E8gdxt2YBsGxX9x5fLH5HJ74g== X-Virus-Scanned: amavisd-new at usg-ed-osssrv.wdc.com From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Richard Henderson , Alistair Francis Subject: [PULL v2 02/19] target/riscv: Set env->bins in gen_exception_illegal Date: Sun, 3 Jul 2022 10:12:17 +1000 Message-Id: <20220703001234.439716-3-alistair.francis@opensource.wdc.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220703001234.439716-1-alistair.francis@opensource.wdc.com> References: <20220703001234.439716-1-alistair.francis@opensource.wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.71.153.144; envelope-from=prvs=176813b30=alistair.francis@opensource.wdc.com; helo=esa5.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1656807450846100003 Content-Type: text/plain; charset="utf-8" From: Richard Henderson While we set env->bins when unwinding for ILLEGAL_INST, from e.g. csrrw, we weren't setting it for immediately illegal instructions. Add a testcase for mtval via both exception paths. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1060 Signed-off-by: Richard Henderson Reviewed-by: Alistair Francis Message-Id: <20220604231004.49990-2-richard.henderson@linaro.org> Signed-off-by: Alistair Francis --- target/riscv/translate.c | 2 + tests/tcg/riscv64/Makefile.softmmu-target | 21 +++++++++ tests/tcg/riscv64/issue1060.S | 53 +++++++++++++++++++++++ tests/tcg/riscv64/semihost.ld | 21 +++++++++ 4 files changed, 97 insertions(+) create mode 100644 tests/tcg/riscv64/Makefile.softmmu-target create mode 100644 tests/tcg/riscv64/issue1060.S create mode 100644 tests/tcg/riscv64/semihost.ld diff --git a/target/riscv/translate.c b/target/riscv/translate.c index b151c20674..a10f3f939c 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -240,6 +240,8 @@ static void generate_exception_mtval(DisasContext *ctx,= int excp) =20 static void gen_exception_illegal(DisasContext *ctx) { + tcg_gen_st_i32(tcg_constant_i32(ctx->opcode), cpu_env, + offsetof(CPURISCVState, bins)); generate_exception(ctx, RISCV_EXCP_ILLEGAL_INST); } =20 diff --git a/tests/tcg/riscv64/Makefile.softmmu-target b/tests/tcg/riscv64/= Makefile.softmmu-target new file mode 100644 index 0000000000..e22cdb34c5 --- /dev/null +++ b/tests/tcg/riscv64/Makefile.softmmu-target @@ -0,0 +1,21 @@ +# +# RISC-V system tests +# + +TEST_SRC =3D $(SRC_PATH)/tests/tcg/riscv64 +VPATH +=3D $(TEST_SRC) + +LINK_SCRIPT =3D $(TEST_SRC)/semihost.ld +LDFLAGS =3D -T $(LINK_SCRIPT) +CFLAGS +=3D -g -Og + +%.o: %.S + $(CC) $(CFLAGS) $< -c -o $@ +%: %.o $(LINK_SCRIPT) + $(LD) $(LDFLAGS) $< -o $@ + +QEMU_OPTS +=3D -M virt -display none -semihosting -device loader,file=3D + +EXTRA_RUNS +=3D run-issue1060 +run-issue1060: issue1060 + $(call run-test, $<, $(QEMU) $(QEMU_OPTS)$<) diff --git a/tests/tcg/riscv64/issue1060.S b/tests/tcg/riscv64/issue1060.S new file mode 100644 index 0000000000..17b7fe1be2 --- /dev/null +++ b/tests/tcg/riscv64/issue1060.S @@ -0,0 +1,53 @@ + .option norvc + + .text + .global _start +_start: + lla t0, trap + csrw mtvec, t0 + + # These are all illegal instructions + csrw time, x0 + .insn i CUSTOM_0, 0, x0, x0, 0x321 + csrw time, x0 + .insn i CUSTOM_0, 0, x0, x0, 0x123 + csrw cycle, x0 + + # Success! + li a0, 0 + j _exit + +trap: + # When an instruction traps, compare it to the insn in memory. + csrr t0, mepc + csrr t1, mtval + lwu t2, 0(t0) + bne t1, t2, fail + + # Skip the insn and continue. + addi t0, t0, 4 + csrw mepc, t0 + mret + +fail: + li a0, 1 + +# Exit code in a0 +_exit: + lla a1, semiargs + li t0, 0x20026 # ADP_Stopped_ApplicationExit + sd t0, 0(a1) + sd a0, 8(a1) + li a0, 0x20 # TARGET_SYS_EXIT_EXTENDED + + # Semihosting call sequence + .balign 16 + slli zero, zero, 0x1f + ebreak + srai zero, zero, 0x7 + j . + + .data + .balign 16 +semiargs: + .space 16 diff --git a/tests/tcg/riscv64/semihost.ld b/tests/tcg/riscv64/semihost.ld new file mode 100644 index 0000000000..a59cc56b28 --- /dev/null +++ b/tests/tcg/riscv64/semihost.ld @@ -0,0 +1,21 @@ +ENTRY(_start) + +SECTIONS +{ + /* virt machine, RAM starts at 2gb */ + . =3D 0x80000000; + .text : { + *(.text) + } + .rodata : { + *(.rodata) + } + /* align r/w section to next 2mb */ + . =3D ALIGN(1 << 21); + .data : { + *(.data) + } + .bss : { + *(.bss) + } +} --=20 2.36.1