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charset="utf-8" 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=2a00:1450:4864:20::334; envelope-from=philmd@linaro.org; helo=mail-wm1-x334.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1680038755411100001 aarch64_gdb_get_pauth_reg() -- although disabled since commit 5787d17a42 ("target/arm: Don't advertise aarch64-pauth.xml to gdb") is still compiled in. It calls pauth_ptr_mask() which is located in target/arm/tcg/pauth_helper.c, a TCG specific helper. To avoid a linking error when TCG is not enabled: Undefined symbols for architecture arm64: "_pauth_ptr_mask", referenced from: _aarch64_gdb_get_pauth_reg in target_arm_gdbstub64.c.o ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invoc= ation) - Inline pauth_ptr_mask() in aarch64_gdb_get_pauth_reg() (this is the single user), - Rename pauth_ptr_mask_internal() as pauth_ptr_mask() and inline it in "internals.h", Fixes: e995d5cce4 ("target/arm: Implement gdbstub pauth extension") Suggested-by: Richard Henderson Reviewed-by: Fabiano Rosas Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- Supersedes: <20230328133054.6553-1-philmd@linaro.org> Since v2: - Rebased (patch #1 merged) - Addressed rth's comments - Added R-b tags --- target/arm/internals.h | 16 +++++++--------- target/arm/gdbstub64.c | 7 +++++-- target/arm/tcg/pauth_helper.c | 18 +----------------- 3 files changed, 13 insertions(+), 28 deletions(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index 673519a24a..71f4c6d8a2 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -1389,15 +1389,13 @@ int exception_target_el(CPUARMState *env); bool arm_singlestep_active(CPUARMState *env); bool arm_generate_debug_exceptions(CPUARMState *env); =20 -/** - * pauth_ptr_mask: - * @env: cpu context - * @ptr: selects between TTBR0 and TTBR1 - * @data: selects between TBI and TBID - * - * Return a mask of the bits of @ptr that contain the authentication code. - */ -uint64_t pauth_ptr_mask(CPUARMState *env, uint64_t ptr, bool data); +static inline uint64_t pauth_ptr_mask(ARMVAParameters param) +{ + int bot_pac_bit =3D 64 - param.tsz; + int top_pac_bit =3D 64 - 8 * param.tbi; + + return MAKE_64BIT_MASK(bot_pac_bit, top_pac_bit - bot_pac_bit); +} =20 /* Add the cpreg definitions for debug related system registers */ void define_debug_regs(ARMCPU *cpu); diff --git a/target/arm/gdbstub64.c b/target/arm/gdbstub64.c index ec1e07f139..c1f7e8c934 100644 --- a/target/arm/gdbstub64.c +++ b/target/arm/gdbstub64.c @@ -230,8 +230,11 @@ int aarch64_gdb_get_pauth_reg(CPUARMState *env, GByteA= rray *buf, int reg) { bool is_data =3D !(reg & 1); bool is_high =3D reg & 2; - uint64_t mask =3D pauth_ptr_mask(env, -is_high, is_data); - return gdb_get_reg64(buf, mask); + ARMMMUIdx mmu_idx =3D arm_stage1_mmu_idx(env); + ARMVAParameters param; + + param =3D aa64_va_parameters(env, -is_high, mmu_idx, is_data); + return gdb_get_reg64(buf, pauth_ptr_mask(param)); } default: return 0; diff --git a/target/arm/tcg/pauth_helper.c b/target/arm/tcg/pauth_helper.c index 20f347332d..de067fa716 100644 --- a/target/arm/tcg/pauth_helper.c +++ b/target/arm/tcg/pauth_helper.c @@ -339,17 +339,9 @@ static uint64_t pauth_addpac(CPUARMState *env, uint64_= t ptr, uint64_t modifier, return pac | ext | ptr; } =20 -static uint64_t pauth_ptr_mask_internal(ARMVAParameters param) -{ - int bot_pac_bit =3D 64 - param.tsz; - int top_pac_bit =3D 64 - 8 * param.tbi; - - return MAKE_64BIT_MASK(bot_pac_bit, top_pac_bit - bot_pac_bit); -} - static uint64_t pauth_original_ptr(uint64_t ptr, ARMVAParameters param) { - uint64_t mask =3D pauth_ptr_mask_internal(param); + uint64_t mask =3D pauth_ptr_mask(param); =20 /* Note that bit 55 is used whether or not the regime has 2 ranges. */ if (extract64(ptr, 55, 1)) { @@ -359,14 +351,6 @@ static uint64_t pauth_original_ptr(uint64_t ptr, ARMVA= Parameters param) } } =20 -uint64_t pauth_ptr_mask(CPUARMState *env, uint64_t ptr, bool data) -{ - ARMMMUIdx mmu_idx =3D arm_stage1_mmu_idx(env); - ARMVAParameters param =3D aa64_va_parameters(env, ptr, mmu_idx, data); - - return pauth_ptr_mask_internal(param); -} - static uint64_t pauth_auth(CPUARMState *env, uint64_t ptr, uint64_t modifi= er, ARMPACKey *key, bool data, int keynumber) { --=20 2.38.1