From: Christophe Leroy <christophe.leroy@c-s.fr> To: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, mikey@neuling.org Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [RFC PATCH v2 11/12] powerpc/ptrace: create ppc_gethwdinfo() Date: Fri, 28 Jun 2019 15:48:01 +0000 (UTC) [thread overview] Message-ID: <b25d2a4c5d6ea848b9b4e434bc4c67833c8e9268.1561735588.git.christophe.leroy@c-s.fr> (raw) In-Reply-To: <cover.1561735587.git.christophe.leroy@c-s.fr> Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and reduce ifdef mess Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- arch/powerpc/kernel/ptrace/ptrace-adv.c | 15 +++++++++++++++ arch/powerpc/kernel/ptrace/ptrace-decl.h | 1 + arch/powerpc/kernel/ptrace/ptrace-noadv.c | 20 +++++++++++++++++++ arch/powerpc/kernel/ptrace/ptrace.c | 32 +------------------------------ 4 files changed, 37 insertions(+), 31 deletions(-) diff --git a/arch/powerpc/kernel/ptrace/ptrace-adv.c b/arch/powerpc/kernel/ptrace/ptrace-adv.c index dcc765940344..f5f334484ebc 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-adv.c +++ b/arch/powerpc/kernel/ptrace/ptrace-adv.c @@ -83,6 +83,21 @@ void user_disable_single_step(struct task_struct *task) clear_tsk_thread_flag(task, TIF_SINGLESTEP); } +void ppc_gethwdinfo(struct ppc_debug_info *dbginfo) +{ + dbginfo->version = 1; + dbginfo->num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS; + dbginfo->num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS; + dbginfo->num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS; + dbginfo->data_bp_alignment = 4; + dbginfo->sizeof_condition = 4; + dbginfo->features = PPC_DEBUG_FEATURE_INSN_BP_RANGE | + PPC_DEBUG_FEATURE_INSN_BP_MASK; + if (IS_ENABLED(CONFIG_PPC_ADV_DEBUG_DAC_RANGE)) + dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_RANGE | + PPC_DEBUG_FEATURE_DATA_BP_MASK; +} + int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, unsigned long __user *datalp) { diff --git a/arch/powerpc/kernel/ptrace/ptrace-decl.h b/arch/powerpc/kernel/ptrace/ptrace-decl.h index 4b4b6a1d508a..3c8a81999292 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-decl.h +++ b/arch/powerpc/kernel/ptrace/ptrace-decl.h @@ -176,6 +176,7 @@ int tm_cgpr32_set(struct task_struct *target, const struct user_regset *regset, extern const struct user_regset_view user_ppc_native_view; /* ptrace-(no)adv */ +void ppc_gethwdinfo(struct ppc_debug_info *dbginfo); int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, unsigned long __user *datalp); int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data); diff --git a/arch/powerpc/kernel/ptrace/ptrace-noadv.c b/arch/powerpc/kernel/ptrace/ptrace-noadv.c index 985cca136f85..426fedd7ab6c 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-noadv.c +++ b/arch/powerpc/kernel/ptrace/ptrace-noadv.c @@ -64,6 +64,26 @@ void user_disable_single_step(struct task_struct *task) clear_tsk_thread_flag(task, TIF_SINGLESTEP); } +void ppc_gethwdinfo(struct ppc_debug_info *dbginfo) +{ + dbginfo->version = 1; + dbginfo->num_instruction_bps = 0; + if (ppc_breakpoint_available()) + dbginfo->num_data_bps = 1; + else + dbginfo->num_data_bps = 0; + dbginfo->num_condition_regs = 0; + dbginfo->data_bp_alignment = sizeof(long); + dbginfo->sizeof_condition = 0; + if (IS_ENABLED(CONFIG_HAVE_HW_BREAKPOINT)) { + dbginfo->features = PPC_DEBUG_FEATURE_DATA_BP_RANGE; + if (dawr_enabled()) + dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR; + } else { + dbginfo->features = 0; + } +} + int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, unsigned long __user *datalp) { diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c index e789afae6f56..31e8c5a9171e 100644 --- a/arch/powerpc/kernel/ptrace/ptrace.c +++ b/arch/powerpc/kernel/ptrace/ptrace.c @@ -159,37 +159,7 @@ long arch_ptrace(struct task_struct *child, long request, case PPC_PTRACE_GETHWDBGINFO: { struct ppc_debug_info dbginfo; - dbginfo.version = 1; -#ifdef CONFIG_PPC_ADV_DEBUG_REGS - dbginfo.num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS; - dbginfo.num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS; - dbginfo.num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS; - dbginfo.data_bp_alignment = 4; - dbginfo.sizeof_condition = 4; - dbginfo.features = PPC_DEBUG_FEATURE_INSN_BP_RANGE | - PPC_DEBUG_FEATURE_INSN_BP_MASK; -#ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE - dbginfo.features |= - PPC_DEBUG_FEATURE_DATA_BP_RANGE | - PPC_DEBUG_FEATURE_DATA_BP_MASK; -#endif -#else /* !CONFIG_PPC_ADV_DEBUG_REGS */ - dbginfo.num_instruction_bps = 0; - if (ppc_breakpoint_available()) - dbginfo.num_data_bps = 1; - else - dbginfo.num_data_bps = 0; - dbginfo.num_condition_regs = 0; - dbginfo.data_bp_alignment = sizeof(long); - dbginfo.sizeof_condition = 0; -#ifdef CONFIG_HAVE_HW_BREAKPOINT - dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE; - if (dawr_enabled()) - dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR; -#else - dbginfo.features = 0; -#endif /* CONFIG_HAVE_HW_BREAKPOINT */ -#endif /* CONFIG_PPC_ADV_DEBUG_REGS */ + ppc_gethwdinfo(&dbginfo); if (copy_to_user(datavp, &dbginfo, sizeof(struct ppc_debug_info))) -- 2.13.3
WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@c-s.fr> To: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, mikey@neuling.org Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 11/12] powerpc/ptrace: create ppc_gethwdinfo() Date: Fri, 28 Jun 2019 15:48:01 +0000 (UTC) [thread overview] Message-ID: <b25d2a4c5d6ea848b9b4e434bc4c67833c8e9268.1561735588.git.christophe.leroy@c-s.fr> (raw) In-Reply-To: <cover.1561735587.git.christophe.leroy@c-s.fr> Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and reduce ifdef mess Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- arch/powerpc/kernel/ptrace/ptrace-adv.c | 15 +++++++++++++++ arch/powerpc/kernel/ptrace/ptrace-decl.h | 1 + arch/powerpc/kernel/ptrace/ptrace-noadv.c | 20 +++++++++++++++++++ arch/powerpc/kernel/ptrace/ptrace.c | 32 +------------------------------ 4 files changed, 37 insertions(+), 31 deletions(-) diff --git a/arch/powerpc/kernel/ptrace/ptrace-adv.c b/arch/powerpc/kernel/ptrace/ptrace-adv.c index dcc765940344..f5f334484ebc 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-adv.c +++ b/arch/powerpc/kernel/ptrace/ptrace-adv.c @@ -83,6 +83,21 @@ void user_disable_single_step(struct task_struct *task) clear_tsk_thread_flag(task, TIF_SINGLESTEP); } +void ppc_gethwdinfo(struct ppc_debug_info *dbginfo) +{ + dbginfo->version = 1; + dbginfo->num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS; + dbginfo->num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS; + dbginfo->num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS; + dbginfo->data_bp_alignment = 4; + dbginfo->sizeof_condition = 4; + dbginfo->features = PPC_DEBUG_FEATURE_INSN_BP_RANGE | + PPC_DEBUG_FEATURE_INSN_BP_MASK; + if (IS_ENABLED(CONFIG_PPC_ADV_DEBUG_DAC_RANGE)) + dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_RANGE | + PPC_DEBUG_FEATURE_DATA_BP_MASK; +} + int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, unsigned long __user *datalp) { diff --git a/arch/powerpc/kernel/ptrace/ptrace-decl.h b/arch/powerpc/kernel/ptrace/ptrace-decl.h index 4b4b6a1d508a..3c8a81999292 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-decl.h +++ b/arch/powerpc/kernel/ptrace/ptrace-decl.h @@ -176,6 +176,7 @@ int tm_cgpr32_set(struct task_struct *target, const struct user_regset *regset, extern const struct user_regset_view user_ppc_native_view; /* ptrace-(no)adv */ +void ppc_gethwdinfo(struct ppc_debug_info *dbginfo); int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, unsigned long __user *datalp); int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data); diff --git a/arch/powerpc/kernel/ptrace/ptrace-noadv.c b/arch/powerpc/kernel/ptrace/ptrace-noadv.c index 985cca136f85..426fedd7ab6c 100644 --- a/arch/powerpc/kernel/ptrace/ptrace-noadv.c +++ b/arch/powerpc/kernel/ptrace/ptrace-noadv.c @@ -64,6 +64,26 @@ void user_disable_single_step(struct task_struct *task) clear_tsk_thread_flag(task, TIF_SINGLESTEP); } +void ppc_gethwdinfo(struct ppc_debug_info *dbginfo) +{ + dbginfo->version = 1; + dbginfo->num_instruction_bps = 0; + if (ppc_breakpoint_available()) + dbginfo->num_data_bps = 1; + else + dbginfo->num_data_bps = 0; + dbginfo->num_condition_regs = 0; + dbginfo->data_bp_alignment = sizeof(long); + dbginfo->sizeof_condition = 0; + if (IS_ENABLED(CONFIG_HAVE_HW_BREAKPOINT)) { + dbginfo->features = PPC_DEBUG_FEATURE_DATA_BP_RANGE; + if (dawr_enabled()) + dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR; + } else { + dbginfo->features = 0; + } +} + int ptrace_get_debugreg(struct task_struct *child, unsigned long addr, unsigned long __user *datalp) { diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c index e789afae6f56..31e8c5a9171e 100644 --- a/arch/powerpc/kernel/ptrace/ptrace.c +++ b/arch/powerpc/kernel/ptrace/ptrace.c @@ -159,37 +159,7 @@ long arch_ptrace(struct task_struct *child, long request, case PPC_PTRACE_GETHWDBGINFO: { struct ppc_debug_info dbginfo; - dbginfo.version = 1; -#ifdef CONFIG_PPC_ADV_DEBUG_REGS - dbginfo.num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS; - dbginfo.num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS; - dbginfo.num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS; - dbginfo.data_bp_alignment = 4; - dbginfo.sizeof_condition = 4; - dbginfo.features = PPC_DEBUG_FEATURE_INSN_BP_RANGE | - PPC_DEBUG_FEATURE_INSN_BP_MASK; -#ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE - dbginfo.features |= - PPC_DEBUG_FEATURE_DATA_BP_RANGE | - PPC_DEBUG_FEATURE_DATA_BP_MASK; -#endif -#else /* !CONFIG_PPC_ADV_DEBUG_REGS */ - dbginfo.num_instruction_bps = 0; - if (ppc_breakpoint_available()) - dbginfo.num_data_bps = 1; - else - dbginfo.num_data_bps = 0; - dbginfo.num_condition_regs = 0; - dbginfo.data_bp_alignment = sizeof(long); - dbginfo.sizeof_condition = 0; -#ifdef CONFIG_HAVE_HW_BREAKPOINT - dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE; - if (dawr_enabled()) - dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR; -#else - dbginfo.features = 0; -#endif /* CONFIG_HAVE_HW_BREAKPOINT */ -#endif /* CONFIG_PPC_ADV_DEBUG_REGS */ + ppc_gethwdinfo(&dbginfo); if (copy_to_user(datavp, &dbginfo, sizeof(struct ppc_debug_info))) -- 2.13.3
next prev parent reply other threads:[~2019-06-28 15:48 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-28 15:47 [RFC PATCH v2 00/12] Reduce ifdef mess in ptrace Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 01/12] powerpc: move ptrace into a subdirectory Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 02/12] powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 16:36 ` Andreas Schwab 2019-06-28 16:36 ` Andreas Schwab 2019-06-28 16:39 ` Christophe Leroy 2019-06-28 16:39 ` Christophe Leroy 2019-06-28 17:08 ` Andreas Schwab 2019-06-28 17:08 ` Andreas Schwab 2020-02-24 10:48 ` Michael Ellerman 2020-02-24 10:48 ` Michael Ellerman 2020-02-26 12:06 ` Christophe Leroy 2020-02-26 12:06 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 03/12] powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 04/12] powerpc/ptrace: split out VSX related functions Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2020-02-24 10:51 ` Michael Ellerman 2020-02-24 10:51 ` Michael Ellerman 2020-02-26 12:04 ` Christophe Leroy 2020-02-26 12:04 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 05/12] powerpc/ptrace: split out ALTIVEC " Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 06/12] powerpc/ptrace: split out SPE " Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 07/12] powerpc/ptrace: split out TRANSACTIONAL_MEM " Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 08/12] powerpc/ptrace: move register viewing functions out of ptrace.c Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-06-28 15:47 ` [RFC PATCH v2 09/12] powerpc/ptrace: split out ADV_DEBUG_REGS related functions Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-07-03 2:52 ` Ravi Bangoria 2019-07-03 2:52 ` Ravi Bangoria 2019-06-28 15:47 ` [RFC PATCH v2 10/12] powerpc/ptrace: create ptrace_get_debugreg() Christophe Leroy 2019-06-28 15:47 ` Christophe Leroy 2019-07-03 3:03 ` Ravi Bangoria 2019-07-03 3:03 ` Ravi Bangoria 2019-06-28 15:48 ` Christophe Leroy [this message] 2019-06-28 15:48 ` [RFC PATCH v2 11/12] powerpc/ptrace: create ppc_gethwdinfo() Christophe Leroy 2019-07-03 3:18 ` Ravi Bangoria 2019-07-03 3:18 ` Ravi Bangoria 2019-06-28 15:48 ` [RFC PATCH v2 12/12] powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c Christophe Leroy 2019-06-28 15:48 ` Christophe Leroy 2019-07-03 3:05 ` Ravi Bangoria 2019-07-03 3:05 ` Ravi Bangoria 2019-07-03 6:29 ` [RFC PATCH v2 00/12] Reduce ifdef mess in ptrace Ravi Bangoria 2019-07-03 6:29 ` Ravi Bangoria 2020-02-17 6:49 ` Christophe Leroy 2020-02-17 6:49 ` Christophe Leroy 2020-02-24 2:15 ` Michael Neuling 2020-02-24 2:15 ` Michael Neuling 2020-02-24 5:58 ` Christophe Leroy 2020-02-24 5:58 ` Christophe Leroy 2020-02-24 10:54 ` Michael Ellerman 2020-02-24 10:54 ` Michael Ellerman 2020-02-26 12:03 ` Christophe Leroy 2020-02-26 12:03 ` Christophe Leroy
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