From: Hari Bathini <hbathini@linux.ibm.com>
To: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>,
"Naveen N. Rao" <naveen@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Masahiro Yamada <masahiroy@kernel.org>,
Nicholas Piggin <npiggin@gmail.com>,
Alexei Starovoitov <ast@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Andrii Nakryiko <andrii@kernel.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Vishal Chourasia <vishalc@linux.ibm.com>,
Mahesh J Salgaonkar <mahesh@linux.ibm.com>
Subject: [PATCH v6 08/17] powerpc/ftrace: Move ftrace stub used for init text before _einittext
Date: Fri, 18 Oct 2024 23:06:23 +0530 [thread overview]
Message-ID: <20241018173632.277333-9-hbathini@linux.ibm.com> (raw)
In-Reply-To: <20241018173632.277333-1-hbathini@linux.ibm.com>
From: Naveen N Rao <naveen@kernel.org>
Move the ftrace stub used to cover inittext before _einittext so that it
is within kernel text, as seen through core_kernel_text(). This is
required for a subsequent change to ftrace.
Signed-off-by: Naveen N Rao <naveen@kernel.org>
---
arch/powerpc/kernel/vmlinux.lds.S | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 7ab4e2fb28b1..b4c9decc7a75 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -265,14 +265,13 @@ SECTIONS
.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
_sinittext = .;
INIT_TEXT
-
+ *(.tramp.ftrace.init);
/*
*.init.text might be RO so we must ensure this section ends on
* a page boundary.
*/
. = ALIGN(PAGE_SIZE);
_einittext = .;
- *(.tramp.ftrace.init);
} :text
/* .exit.text is discarded at runtime, not link time,
--
2.47.0
next prev parent reply other threads:[~2024-10-18 17:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-18 17:36 [PATCH v6 00/17] powerpc: Core ftrace rework, support for ftrace direct and bpf trampolines Hari Bathini
2024-10-18 17:36 ` [PATCH v6 01/17] powerpc/trace: Account for -fpatchable-function-entry support by toolchain Hari Bathini
2024-10-18 17:36 ` [PATCH v6 02/17] powerpc/kprobes: Use ftrace to determine if a probe is at function entry Hari Bathini
2024-10-18 17:36 ` [PATCH v6 03/17] powerpc64/ftrace: Nop out additional 'std' instruction emitted by gcc v5.x Hari Bathini
2024-10-18 17:36 ` [PATCH v6 04/17] powerpc32/ftrace: Unify 32-bit and 64-bit ftrace entry code Hari Bathini
2024-10-18 17:36 ` [PATCH v6 05/17] powerpc/module_64: Convert #ifdef to IS_ENABLED() Hari Bathini
2024-10-18 17:36 ` [PATCH v6 06/17] powerpc/ftrace: Remove pointer to struct module from dyn_arch_ftrace Hari Bathini
2024-10-18 17:36 ` [PATCH v6 07/17] powerpc/ftrace: Skip instruction patching if the instructions are the same Hari Bathini
2024-10-18 17:36 ` Hari Bathini [this message]
2024-10-18 17:36 ` [PATCH v6 09/17] powerpc64/bpf: Fold bpf_jit_emit_func_call_hlp() into bpf_jit_emit_func_call_rel() Hari Bathini
2024-10-18 17:36 ` [PATCH v6 10/17] powerpc/ftrace: Add a postlink script to validate function tracer Hari Bathini
2024-10-18 17:36 ` [PATCH v6 11/17] kbuild: Add generic hook for architectures to use before the final vmlinux link Hari Bathini
2024-10-27 9:14 ` Masahiro Yamada
2024-10-18 17:36 ` [PATCH v6 12/17] powerpc64/ftrace: Move ftrace sequence out of line Hari Bathini
2024-10-27 9:21 ` Masahiro Yamada
2024-10-18 17:36 ` [PATCH v6 13/17] powerpc64/ftrace: Support .text larger than 32MB with out-of-line stubs Hari Bathini
2024-10-27 9:17 ` Masahiro Yamada
2024-10-18 17:36 ` [PATCH v6 14/17] powerpc/ftrace: Add support for DYNAMIC_FTRACE_WITH_CALL_OPS Hari Bathini
2024-10-18 17:36 ` [PATCH v6 15/17] powerpc/ftrace: Add support for DYNAMIC_FTRACE_WITH_DIRECT_CALLS Hari Bathini
2024-10-18 17:36 ` [PATCH v6 16/17] samples/ftrace: Add support for ftrace direct samples on powerpc Hari Bathini
2024-10-18 17:36 ` [PATCH v6 17/17] powerpc64/bpf: Add support for bpf trampolines Hari Bathini
2024-10-28 2:23 ` Michael Ellerman
2024-10-29 6:44 ` Hari Bathini
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