From: "Clément Léger" <cleger@rivosinc.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Anup Patel <anup@brainfault.org>,
Atish Patra <atishp@atishpatra.org>,
Andrew Jones <ajones@ventanamicro.com>
Cc: "Clément Léger" <cleger@rivosinc.com>,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org
Subject: [PATCH v2 2/5] riscv: Use SYM_*() assembly macros instead of deprecated ones
Date: Tue, 24 Oct 2023 15:26:52 +0200 [thread overview]
Message-ID: <20231024132655.730417-3-cleger@rivosinc.com> (raw)
In-Reply-To: <20231024132655.730417-1-cleger@rivosinc.com>
ENTRY()/END()/WEAK() macros are deprecated and we should make use of the
new SYM_*() macros [1] for better annotation of symbols. Replace the
deprecated ones with the new ones and fix wrong usage of END()/ENDPROC()
to correctly describe the symbols.
[1] https://docs.kernel.org/core-api/asm-annotations.html
Signed-off-by: Clément Léger <cleger@rivosinc.com>
---
arch/riscv/kernel/copy-unaligned.S | 8 ++++----
arch/riscv/kernel/fpu.S | 8 ++++----
arch/riscv/kernel/head.S | 12 +++++------
arch/riscv/kernel/hibernate-asm.S | 12 +++++------
arch/riscv/kernel/mcount-dyn.S | 20 ++++++++-----------
arch/riscv/kernel/mcount.S | 8 ++++----
arch/riscv/kernel/probes/rethook_trampoline.S | 4 ++--
arch/riscv/kernel/suspend_entry.S | 4 ++--
arch/riscv/kernel/vdso/flush_icache.S | 4 ++--
arch/riscv/kernel/vdso/getcpu.S | 4 ++--
arch/riscv/kernel/vdso/rt_sigreturn.S | 4 ++--
arch/riscv/kernel/vdso/sys_hwprobe.S | 4 ++--
arch/riscv/lib/memcpy.S | 6 +++---
arch/riscv/lib/memmove.S | 3 +--
arch/riscv/lib/memset.S | 6 +++---
arch/riscv/lib/uaccess.S | 11 +++++-----
arch/riscv/purgatory/entry.S | 16 ++++-----------
17 files changed, 60 insertions(+), 74 deletions(-)
diff --git a/arch/riscv/kernel/copy-unaligned.S b/arch/riscv/kernel/copy-unaligned.S
index cfdecfbaad62..2b3d9398c113 100644
--- a/arch/riscv/kernel/copy-unaligned.S
+++ b/arch/riscv/kernel/copy-unaligned.S
@@ -9,7 +9,7 @@
/* void __riscv_copy_words_unaligned(void *, const void *, size_t) */
/* Performs a memcpy without aligning buffers, using word loads and stores. */
/* Note: The size is truncated to a multiple of 8 * SZREG */
-ENTRY(__riscv_copy_words_unaligned)
+SYM_FUNC_START(__riscv_copy_words_unaligned)
andi a4, a2, ~((8*SZREG)-1)
beqz a4, 2f
add a3, a1, a4
@@ -36,12 +36,12 @@ ENTRY(__riscv_copy_words_unaligned)
2:
ret
-END(__riscv_copy_words_unaligned)
+SYM_FUNC_END(__riscv_copy_words_unaligned)
/* void __riscv_copy_bytes_unaligned(void *, const void *, size_t) */
/* Performs a memcpy without aligning buffers, using only byte accesses. */
/* Note: The size is truncated to a multiple of 8 */
-ENTRY(__riscv_copy_bytes_unaligned)
+SYM_FUNC_START(__riscv_copy_bytes_unaligned)
andi a4, a2, ~(8-1)
beqz a4, 2f
add a3, a1, a4
@@ -68,4 +68,4 @@ ENTRY(__riscv_copy_bytes_unaligned)
2:
ret
-END(__riscv_copy_bytes_unaligned)
+SYM_FUNC_END(__riscv_copy_bytes_unaligned)
diff --git a/arch/riscv/kernel/fpu.S b/arch/riscv/kernel/fpu.S
index dd2205473de7..6201afcd6b45 100644
--- a/arch/riscv/kernel/fpu.S
+++ b/arch/riscv/kernel/fpu.S
@@ -19,7 +19,7 @@
#include <asm/csr.h>
#include <asm/asm-offsets.h>
-ENTRY(__fstate_save)
+SYM_FUNC_START(__fstate_save)
li a2, TASK_THREAD_F0
add a0, a0, a2
li t1, SR_FS
@@ -60,9 +60,9 @@ ENTRY(__fstate_save)
sw t0, TASK_THREAD_FCSR_F0(a0)
csrc CSR_STATUS, t1
ret
-ENDPROC(__fstate_save)
+SYM_FUNC_END(__fstate_save)
-ENTRY(__fstate_restore)
+SYM_FUNC_START(__fstate_restore)
li a2, TASK_THREAD_F0
add a0, a0, a2
li t1, SR_FS
@@ -103,4 +103,4 @@ ENTRY(__fstate_restore)
fscsr t0
csrc CSR_STATUS, t1
ret
-ENDPROC(__fstate_restore)
+SYM_FUNC_END(__fstate_restore)
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 7e1b83f18a50..56f78ec304c6 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -18,7 +18,7 @@
#include "efi-header.S"
__HEAD
-ENTRY(_start)
+SYM_CODE_START(_start)
/*
* Image header expected by Linux boot-loaders. The image header data
* structure is described in asm/image.h.
@@ -191,9 +191,9 @@ secondary_start_sbi:
wfi
j .Lsecondary_park
-END(_start)
+SYM_CODE_END(_start)
-ENTRY(_start_kernel)
+SYM_CODE_START(_start_kernel)
/* Mask all interrupts */
csrw CSR_IE, zero
csrw CSR_IP, zero
@@ -353,10 +353,10 @@ ENTRY(_start_kernel)
tail .Lsecondary_start_common
#endif /* CONFIG_RISCV_BOOT_SPINWAIT */
-END(_start_kernel)
+SYM_CODE_END(_start_kernel)
#ifdef CONFIG_RISCV_M_MODE
-ENTRY(reset_regs)
+SYM_CODE_START_LOCAL(reset_regs)
li sp, 0
li gp, 0
li tp, 0
@@ -454,5 +454,5 @@ ENTRY(reset_regs)
.Lreset_regs_done_vector:
#endif /* CONFIG_RISCV_ISA_V */
ret
-END(reset_regs)
+SYM_CODE_END(reset_regs)
#endif /* CONFIG_RISCV_M_MODE */
diff --git a/arch/riscv/kernel/hibernate-asm.S b/arch/riscv/kernel/hibernate-asm.S
index d698dd7df637..d040dcf4add4 100644
--- a/arch/riscv/kernel/hibernate-asm.S
+++ b/arch/riscv/kernel/hibernate-asm.S
@@ -21,7 +21,7 @@
*
* Always returns 0
*/
-ENTRY(__hibernate_cpu_resume)
+SYM_FUNC_START(__hibernate_cpu_resume)
/* switch to hibernated image's page table. */
csrw CSR_SATP, s0
sfence.vma
@@ -34,7 +34,7 @@ ENTRY(__hibernate_cpu_resume)
mv a0, zero
ret
-END(__hibernate_cpu_resume)
+SYM_FUNC_END(__hibernate_cpu_resume)
/*
* Prepare to restore the image.
@@ -42,7 +42,7 @@ END(__hibernate_cpu_resume)
* a1: satp of temporary page tables.
* a2: cpu_resume.
*/
-ENTRY(hibernate_restore_image)
+SYM_FUNC_START(hibernate_restore_image)
mv s0, a0
mv s1, a1
mv s2, a2
@@ -50,7 +50,7 @@ ENTRY(hibernate_restore_image)
REG_L a1, relocated_restore_code
jr a1
-END(hibernate_restore_image)
+SYM_FUNC_END(hibernate_restore_image)
/*
* The below code will be executed from a 'safe' page.
@@ -58,7 +58,7 @@ END(hibernate_restore_image)
* back to the original memory location. Finally, it jumps to __hibernate_cpu_resume()
* to restore the CPU context.
*/
-ENTRY(hibernate_core_restore_code)
+SYM_FUNC_START(hibernate_core_restore_code)
/* switch to temp page table. */
csrw satp, s1
sfence.vma
@@ -73,4 +73,4 @@ ENTRY(hibernate_core_restore_code)
bnez s4, .Lcopy
jr s2
-END(hibernate_core_restore_code)
+SYM_FUNC_END(hibernate_core_restore_code)
diff --git a/arch/riscv/kernel/mcount-dyn.S b/arch/riscv/kernel/mcount-dyn.S
index 669b8697aa38..58dd96a2a153 100644
--- a/arch/riscv/kernel/mcount-dyn.S
+++ b/arch/riscv/kernel/mcount-dyn.S
@@ -82,7 +82,7 @@
.endm
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */
-ENTRY(ftrace_caller)
+SYM_FUNC_START(ftrace_caller)
SAVE_ABI
addi a0, t0, -FENTRY_RA_OFFSET
@@ -91,8 +91,7 @@ ENTRY(ftrace_caller)
mv a1, ra
mv a3, sp
-ftrace_call:
- .global ftrace_call
+SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
call ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -102,16 +101,15 @@ ftrace_call:
#ifdef HAVE_FUNCTION_GRAPH_FP_TEST
mv a2, s0
#endif
-ftrace_graph_call:
- .global ftrace_graph_call
+SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
call ftrace_stub
#endif
RESTORE_ABI
jr t0
-ENDPROC(ftrace_caller)
+SYM_FUNC_END(ftrace_caller)
#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
-ENTRY(ftrace_regs_caller)
+SYM_FUNC_START(ftrace_regs_caller)
SAVE_ALL
addi a0, t0, -FENTRY_RA_OFFSET
@@ -120,8 +118,7 @@ ENTRY(ftrace_regs_caller)
mv a1, ra
mv a3, sp
-ftrace_regs_call:
- .global ftrace_regs_call
+SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
call ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -131,12 +128,11 @@ ftrace_regs_call:
#ifdef HAVE_FUNCTION_GRAPH_FP_TEST
mv a2, s0
#endif
-ftrace_graph_regs_call:
- .global ftrace_graph_regs_call
+SYM_INNER_LABEL(ftrace_graph_regs_call, SYM_L_GLOBAL)
call ftrace_stub
#endif
RESTORE_ALL
jr t0
-ENDPROC(ftrace_regs_caller)
+SYM_FUNC_END(ftrace_regs_caller)
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */
diff --git a/arch/riscv/kernel/mcount.S b/arch/riscv/kernel/mcount.S
index ab4dd0594fe7..b4dd9ed6849e 100644
--- a/arch/riscv/kernel/mcount.S
+++ b/arch/riscv/kernel/mcount.S
@@ -61,7 +61,7 @@ SYM_TYPED_FUNC_START(ftrace_stub_graph)
ret
SYM_FUNC_END(ftrace_stub_graph)
-ENTRY(return_to_handler)
+SYM_FUNC_START(return_to_handler)
/*
* On implementing the frame point test, the ideal way is to compare the
* s0 (frame pointer, if enabled) on entry and the sp (stack pointer) on return.
@@ -76,11 +76,11 @@ ENTRY(return_to_handler)
mv a2, a0
RESTORE_RET_ABI_STATE
jalr a2
-ENDPROC(return_to_handler)
+SYM_FUNC_END(return_to_handler)
#endif
#ifndef CONFIG_DYNAMIC_FTRACE
-ENTRY(MCOUNT_NAME)
+SYM_FUNC_START(MCOUNT_NAME)
la t4, ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
la t0, ftrace_graph_return
@@ -126,6 +126,6 @@ ENTRY(MCOUNT_NAME)
jalr t5
RESTORE_ABI_STATE
ret
-ENDPROC(MCOUNT_NAME)
+SYM_FUNC_END(MCOUNT_NAME)
#endif
EXPORT_SYMBOL(MCOUNT_NAME)
diff --git a/arch/riscv/kernel/probes/rethook_trampoline.S b/arch/riscv/kernel/probes/rethook_trampoline.S
index 21bac92a170a..f2cd83d9b0f0 100644
--- a/arch/riscv/kernel/probes/rethook_trampoline.S
+++ b/arch/riscv/kernel/probes/rethook_trampoline.S
@@ -75,7 +75,7 @@
REG_L x31, PT_T6(sp)
.endm
-ENTRY(arch_rethook_trampoline)
+SYM_CODE_START(arch_rethook_trampoline)
addi sp, sp, -(PT_SIZE_ON_STACK)
save_all_base_regs
@@ -90,4 +90,4 @@ ENTRY(arch_rethook_trampoline)
addi sp, sp, PT_SIZE_ON_STACK
ret
-ENDPROC(arch_rethook_trampoline)
+SYM_CODE_END(arch_rethook_trampoline)
diff --git a/arch/riscv/kernel/suspend_entry.S b/arch/riscv/kernel/suspend_entry.S
index f7960c7c5f9e..a59c4c903696 100644
--- a/arch/riscv/kernel/suspend_entry.S
+++ b/arch/riscv/kernel/suspend_entry.S
@@ -16,7 +16,7 @@
.altmacro
.option norelax
-ENTRY(__cpu_suspend_enter)
+SYM_FUNC_START(__cpu_suspend_enter)
/* Save registers (except A0 and T0-T6) */
REG_S ra, (SUSPEND_CONTEXT_REGS + PT_RA)(a0)
REG_S sp, (SUSPEND_CONTEXT_REGS + PT_SP)(a0)
@@ -57,7 +57,7 @@ ENTRY(__cpu_suspend_enter)
/* Return to C code */
ret
-END(__cpu_suspend_enter)
+SYM_FUNC_END(__cpu_suspend_enter)
SYM_TYPED_FUNC_START(__cpu_resume_enter)
/* Load the global pointer */
diff --git a/arch/riscv/kernel/vdso/flush_icache.S b/arch/riscv/kernel/vdso/flush_icache.S
index 82f97d67c23e..8f884227e8bc 100644
--- a/arch/riscv/kernel/vdso/flush_icache.S
+++ b/arch/riscv/kernel/vdso/flush_icache.S
@@ -8,7 +8,7 @@
.text
/* int __vdso_flush_icache(void *start, void *end, unsigned long flags); */
-ENTRY(__vdso_flush_icache)
+SYM_FUNC_START(__vdso_flush_icache)
.cfi_startproc
#ifdef CONFIG_SMP
li a7, __NR_riscv_flush_icache
@@ -19,4 +19,4 @@ ENTRY(__vdso_flush_icache)
#endif
ret
.cfi_endproc
-ENDPROC(__vdso_flush_icache)
+SYM_FUNC_END(__vdso_flush_icache)
diff --git a/arch/riscv/kernel/vdso/getcpu.S b/arch/riscv/kernel/vdso/getcpu.S
index bb0c05e2ffba..9c1bd531907f 100644
--- a/arch/riscv/kernel/vdso/getcpu.S
+++ b/arch/riscv/kernel/vdso/getcpu.S
@@ -8,11 +8,11 @@
.text
/* int __vdso_getcpu(unsigned *cpu, unsigned *node, void *unused); */
-ENTRY(__vdso_getcpu)
+SYM_FUNC_START(__vdso_getcpu)
.cfi_startproc
/* For now, just do the syscall. */
li a7, __NR_getcpu
ecall
ret
.cfi_endproc
-ENDPROC(__vdso_getcpu)
+SYM_FUNC_END(__vdso_getcpu)
diff --git a/arch/riscv/kernel/vdso/rt_sigreturn.S b/arch/riscv/kernel/vdso/rt_sigreturn.S
index 10438c7c626a..3dc022aa8931 100644
--- a/arch/riscv/kernel/vdso/rt_sigreturn.S
+++ b/arch/riscv/kernel/vdso/rt_sigreturn.S
@@ -7,10 +7,10 @@
#include <asm/unistd.h>
.text
-ENTRY(__vdso_rt_sigreturn)
+SYM_FUNC_START(__vdso_rt_sigreturn)
.cfi_startproc
.cfi_signal_frame
li a7, __NR_rt_sigreturn
ecall
.cfi_endproc
-ENDPROC(__vdso_rt_sigreturn)
+SYM_FUNC_END(__vdso_rt_sigreturn)
diff --git a/arch/riscv/kernel/vdso/sys_hwprobe.S b/arch/riscv/kernel/vdso/sys_hwprobe.S
index 4e704146c77a..77e57f830521 100644
--- a/arch/riscv/kernel/vdso/sys_hwprobe.S
+++ b/arch/riscv/kernel/vdso/sys_hwprobe.S
@@ -5,11 +5,11 @@
#include <asm/unistd.h>
.text
-ENTRY(riscv_hwprobe)
+SYM_FUNC_START(riscv_hwprobe)
.cfi_startproc
li a7, __NR_riscv_hwprobe
ecall
ret
.cfi_endproc
-ENDPROC(riscv_hwprobe)
+SYM_FUNC_END(riscv_hwprobe)
diff --git a/arch/riscv/lib/memcpy.S b/arch/riscv/lib/memcpy.S
index 1a40d01a9543..44e009ec5fef 100644
--- a/arch/riscv/lib/memcpy.S
+++ b/arch/riscv/lib/memcpy.S
@@ -7,8 +7,7 @@
#include <asm/asm.h>
/* void *memcpy(void *, const void *, size_t) */
-ENTRY(__memcpy)
-WEAK(memcpy)
+SYM_FUNC_START(__memcpy)
move t6, a0 /* Preserve return value */
/* Defer to byte-oriented copy for small sizes */
@@ -105,6 +104,7 @@ WEAK(memcpy)
bltu a1, a3, 5b
6:
ret
-END(__memcpy)
+SYM_FUNC_END(__memcpy)
+SYM_FUNC_ALIAS_WEAK(memcpy, __memcpy)
SYM_FUNC_ALIAS(__pi_memcpy, __memcpy)
SYM_FUNC_ALIAS(__pi___memcpy, __memcpy)
diff --git a/arch/riscv/lib/memmove.S b/arch/riscv/lib/memmove.S
index 1930b388c3a0..cb3e2e7ef0ba 100644
--- a/arch/riscv/lib/memmove.S
+++ b/arch/riscv/lib/memmove.S
@@ -7,7 +7,6 @@
#include <asm/asm.h>
SYM_FUNC_START(__memmove)
-SYM_FUNC_START_WEAK(memmove)
/*
* Returns
* a0 - dest
@@ -312,7 +311,7 @@ SYM_FUNC_START_WEAK(memmove)
.Lreturn_from_memmove:
ret
-SYM_FUNC_END(memmove)
SYM_FUNC_END(__memmove)
+SYM_FUNC_ALIAS_WEAK(memmove, __memmove)
SYM_FUNC_ALIAS(__pi_memmove, __memmove)
SYM_FUNC_ALIAS(__pi___memmove, __memmove)
diff --git a/arch/riscv/lib/memset.S b/arch/riscv/lib/memset.S
index 34c5360c6705..35f358e70bdb 100644
--- a/arch/riscv/lib/memset.S
+++ b/arch/riscv/lib/memset.S
@@ -8,8 +8,7 @@
#include <asm/asm.h>
/* void *memset(void *, int, size_t) */
-ENTRY(__memset)
-WEAK(memset)
+SYM_FUNC_START(__memset)
move t0, a0 /* Preserve return value */
/* Defer to byte-oriented fill for small sizes */
@@ -110,4 +109,5 @@ WEAK(memset)
bltu t0, a3, 5b
6:
ret
-END(__memset)
+SYM_FUNC_END(__memset)
+SYM_FUNC_ALIAS_WEAK(memset, __memset)
diff --git a/arch/riscv/lib/uaccess.S b/arch/riscv/lib/uaccess.S
index 09b47ebacf2e..3ab438f30d13 100644
--- a/arch/riscv/lib/uaccess.S
+++ b/arch/riscv/lib/uaccess.S
@@ -10,8 +10,7 @@
_asm_extable 100b, \lbl
.endm
-ENTRY(__asm_copy_to_user)
-ENTRY(__asm_copy_from_user)
+SYM_FUNC_START(__asm_copy_to_user)
/* Enable access to user memory */
li t6, SR_SUM
@@ -181,13 +180,13 @@ ENTRY(__asm_copy_from_user)
csrc CSR_STATUS, t6
sub a0, t5, a0
ret
-ENDPROC(__asm_copy_to_user)
-ENDPROC(__asm_copy_from_user)
+SYM_FUNC_END(__asm_copy_to_user)
EXPORT_SYMBOL(__asm_copy_to_user)
+SYM_FUNC_ALIAS(__asm_copy_from_user, __asm_copy_to_user)
EXPORT_SYMBOL(__asm_copy_from_user)
-ENTRY(__clear_user)
+SYM_FUNC_START(__clear_user)
/* Enable access to user memory */
li t6, SR_SUM
@@ -233,5 +232,5 @@ ENTRY(__clear_user)
csrc CSR_STATUS, t6
sub a0, a3, a0
ret
-ENDPROC(__clear_user)
+SYM_FUNC_END(__clear_user)
EXPORT_SYMBOL(__clear_user)
diff --git a/arch/riscv/purgatory/entry.S b/arch/riscv/purgatory/entry.S
index 0194f4554130..5bcf3af903da 100644
--- a/arch/riscv/purgatory/entry.S
+++ b/arch/riscv/purgatory/entry.S
@@ -7,15 +7,11 @@
* Author: Li Zhengyu (lizhengyu3@huawei.com)
*
*/
-
-.macro size, sym:req
- .size \sym, . - \sym
-.endm
+#include <linux/linkage.h>
.text
-.globl purgatory_start
-purgatory_start:
+SYM_CODE_START(purgatory_start)
lla sp, .Lstack
mv s0, a0 /* The hartid of the current hart */
@@ -28,8 +24,7 @@ purgatory_start:
mv a1, s1
ld a2, riscv_kernel_entry
jr a2
-
-size purgatory_start
+SYM_CODE_END(purgatory_start)
.align 4
.rept 256
@@ -39,9 +34,6 @@ size purgatory_start
.data
-.globl riscv_kernel_entry
-riscv_kernel_entry:
- .quad 0
-size riscv_kernel_entry
+SYM_DATA(riscv_kernel_entry, .quad 0)
.end
--
2.42.0
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WARNING: multiple messages have this Message-ID (diff)
From: "Clément Léger" <cleger@rivosinc.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Anup Patel <anup@brainfault.org>,
Atish Patra <atishp@atishpatra.org>,
Andrew Jones <ajones@ventanamicro.com>
Cc: "Clément Léger" <cleger@rivosinc.com>,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org
Subject: [PATCH v2 2/5] riscv: Use SYM_*() assembly macros instead of deprecated ones
Date: Tue, 24 Oct 2023 15:26:52 +0200 [thread overview]
Message-ID: <20231024132655.730417-3-cleger@rivosinc.com> (raw)
In-Reply-To: <20231024132655.730417-1-cleger@rivosinc.com>
ENTRY()/END()/WEAK() macros are deprecated and we should make use of the
new SYM_*() macros [1] for better annotation of symbols. Replace the
deprecated ones with the new ones and fix wrong usage of END()/ENDPROC()
to correctly describe the symbols.
[1] https://docs.kernel.org/core-api/asm-annotations.html
Signed-off-by: Clément Léger <cleger@rivosinc.com>
---
arch/riscv/kernel/copy-unaligned.S | 8 ++++----
arch/riscv/kernel/fpu.S | 8 ++++----
arch/riscv/kernel/head.S | 12 +++++------
arch/riscv/kernel/hibernate-asm.S | 12 +++++------
arch/riscv/kernel/mcount-dyn.S | 20 ++++++++-----------
arch/riscv/kernel/mcount.S | 8 ++++----
arch/riscv/kernel/probes/rethook_trampoline.S | 4 ++--
arch/riscv/kernel/suspend_entry.S | 4 ++--
arch/riscv/kernel/vdso/flush_icache.S | 4 ++--
arch/riscv/kernel/vdso/getcpu.S | 4 ++--
arch/riscv/kernel/vdso/rt_sigreturn.S | 4 ++--
arch/riscv/kernel/vdso/sys_hwprobe.S | 4 ++--
arch/riscv/lib/memcpy.S | 6 +++---
arch/riscv/lib/memmove.S | 3 +--
arch/riscv/lib/memset.S | 6 +++---
arch/riscv/lib/uaccess.S | 11 +++++-----
arch/riscv/purgatory/entry.S | 16 ++++-----------
17 files changed, 60 insertions(+), 74 deletions(-)
diff --git a/arch/riscv/kernel/copy-unaligned.S b/arch/riscv/kernel/copy-unaligned.S
index cfdecfbaad62..2b3d9398c113 100644
--- a/arch/riscv/kernel/copy-unaligned.S
+++ b/arch/riscv/kernel/copy-unaligned.S
@@ -9,7 +9,7 @@
/* void __riscv_copy_words_unaligned(void *, const void *, size_t) */
/* Performs a memcpy without aligning buffers, using word loads and stores. */
/* Note: The size is truncated to a multiple of 8 * SZREG */
-ENTRY(__riscv_copy_words_unaligned)
+SYM_FUNC_START(__riscv_copy_words_unaligned)
andi a4, a2, ~((8*SZREG)-1)
beqz a4, 2f
add a3, a1, a4
@@ -36,12 +36,12 @@ ENTRY(__riscv_copy_words_unaligned)
2:
ret
-END(__riscv_copy_words_unaligned)
+SYM_FUNC_END(__riscv_copy_words_unaligned)
/* void __riscv_copy_bytes_unaligned(void *, const void *, size_t) */
/* Performs a memcpy without aligning buffers, using only byte accesses. */
/* Note: The size is truncated to a multiple of 8 */
-ENTRY(__riscv_copy_bytes_unaligned)
+SYM_FUNC_START(__riscv_copy_bytes_unaligned)
andi a4, a2, ~(8-1)
beqz a4, 2f
add a3, a1, a4
@@ -68,4 +68,4 @@ ENTRY(__riscv_copy_bytes_unaligned)
2:
ret
-END(__riscv_copy_bytes_unaligned)
+SYM_FUNC_END(__riscv_copy_bytes_unaligned)
diff --git a/arch/riscv/kernel/fpu.S b/arch/riscv/kernel/fpu.S
index dd2205473de7..6201afcd6b45 100644
--- a/arch/riscv/kernel/fpu.S
+++ b/arch/riscv/kernel/fpu.S
@@ -19,7 +19,7 @@
#include <asm/csr.h>
#include <asm/asm-offsets.h>
-ENTRY(__fstate_save)
+SYM_FUNC_START(__fstate_save)
li a2, TASK_THREAD_F0
add a0, a0, a2
li t1, SR_FS
@@ -60,9 +60,9 @@ ENTRY(__fstate_save)
sw t0, TASK_THREAD_FCSR_F0(a0)
csrc CSR_STATUS, t1
ret
-ENDPROC(__fstate_save)
+SYM_FUNC_END(__fstate_save)
-ENTRY(__fstate_restore)
+SYM_FUNC_START(__fstate_restore)
li a2, TASK_THREAD_F0
add a0, a0, a2
li t1, SR_FS
@@ -103,4 +103,4 @@ ENTRY(__fstate_restore)
fscsr t0
csrc CSR_STATUS, t1
ret
-ENDPROC(__fstate_restore)
+SYM_FUNC_END(__fstate_restore)
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 7e1b83f18a50..56f78ec304c6 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -18,7 +18,7 @@
#include "efi-header.S"
__HEAD
-ENTRY(_start)
+SYM_CODE_START(_start)
/*
* Image header expected by Linux boot-loaders. The image header data
* structure is described in asm/image.h.
@@ -191,9 +191,9 @@ secondary_start_sbi:
wfi
j .Lsecondary_park
-END(_start)
+SYM_CODE_END(_start)
-ENTRY(_start_kernel)
+SYM_CODE_START(_start_kernel)
/* Mask all interrupts */
csrw CSR_IE, zero
csrw CSR_IP, zero
@@ -353,10 +353,10 @@ ENTRY(_start_kernel)
tail .Lsecondary_start_common
#endif /* CONFIG_RISCV_BOOT_SPINWAIT */
-END(_start_kernel)
+SYM_CODE_END(_start_kernel)
#ifdef CONFIG_RISCV_M_MODE
-ENTRY(reset_regs)
+SYM_CODE_START_LOCAL(reset_regs)
li sp, 0
li gp, 0
li tp, 0
@@ -454,5 +454,5 @@ ENTRY(reset_regs)
.Lreset_regs_done_vector:
#endif /* CONFIG_RISCV_ISA_V */
ret
-END(reset_regs)
+SYM_CODE_END(reset_regs)
#endif /* CONFIG_RISCV_M_MODE */
diff --git a/arch/riscv/kernel/hibernate-asm.S b/arch/riscv/kernel/hibernate-asm.S
index d698dd7df637..d040dcf4add4 100644
--- a/arch/riscv/kernel/hibernate-asm.S
+++ b/arch/riscv/kernel/hibernate-asm.S
@@ -21,7 +21,7 @@
*
* Always returns 0
*/
-ENTRY(__hibernate_cpu_resume)
+SYM_FUNC_START(__hibernate_cpu_resume)
/* switch to hibernated image's page table. */
csrw CSR_SATP, s0
sfence.vma
@@ -34,7 +34,7 @@ ENTRY(__hibernate_cpu_resume)
mv a0, zero
ret
-END(__hibernate_cpu_resume)
+SYM_FUNC_END(__hibernate_cpu_resume)
/*
* Prepare to restore the image.
@@ -42,7 +42,7 @@ END(__hibernate_cpu_resume)
* a1: satp of temporary page tables.
* a2: cpu_resume.
*/
-ENTRY(hibernate_restore_image)
+SYM_FUNC_START(hibernate_restore_image)
mv s0, a0
mv s1, a1
mv s2, a2
@@ -50,7 +50,7 @@ ENTRY(hibernate_restore_image)
REG_L a1, relocated_restore_code
jr a1
-END(hibernate_restore_image)
+SYM_FUNC_END(hibernate_restore_image)
/*
* The below code will be executed from a 'safe' page.
@@ -58,7 +58,7 @@ END(hibernate_restore_image)
* back to the original memory location. Finally, it jumps to __hibernate_cpu_resume()
* to restore the CPU context.
*/
-ENTRY(hibernate_core_restore_code)
+SYM_FUNC_START(hibernate_core_restore_code)
/* switch to temp page table. */
csrw satp, s1
sfence.vma
@@ -73,4 +73,4 @@ ENTRY(hibernate_core_restore_code)
bnez s4, .Lcopy
jr s2
-END(hibernate_core_restore_code)
+SYM_FUNC_END(hibernate_core_restore_code)
diff --git a/arch/riscv/kernel/mcount-dyn.S b/arch/riscv/kernel/mcount-dyn.S
index 669b8697aa38..58dd96a2a153 100644
--- a/arch/riscv/kernel/mcount-dyn.S
+++ b/arch/riscv/kernel/mcount-dyn.S
@@ -82,7 +82,7 @@
.endm
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */
-ENTRY(ftrace_caller)
+SYM_FUNC_START(ftrace_caller)
SAVE_ABI
addi a0, t0, -FENTRY_RA_OFFSET
@@ -91,8 +91,7 @@ ENTRY(ftrace_caller)
mv a1, ra
mv a3, sp
-ftrace_call:
- .global ftrace_call
+SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
call ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -102,16 +101,15 @@ ftrace_call:
#ifdef HAVE_FUNCTION_GRAPH_FP_TEST
mv a2, s0
#endif
-ftrace_graph_call:
- .global ftrace_graph_call
+SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
call ftrace_stub
#endif
RESTORE_ABI
jr t0
-ENDPROC(ftrace_caller)
+SYM_FUNC_END(ftrace_caller)
#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
-ENTRY(ftrace_regs_caller)
+SYM_FUNC_START(ftrace_regs_caller)
SAVE_ALL
addi a0, t0, -FENTRY_RA_OFFSET
@@ -120,8 +118,7 @@ ENTRY(ftrace_regs_caller)
mv a1, ra
mv a3, sp
-ftrace_regs_call:
- .global ftrace_regs_call
+SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
call ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@@ -131,12 +128,11 @@ ftrace_regs_call:
#ifdef HAVE_FUNCTION_GRAPH_FP_TEST
mv a2, s0
#endif
-ftrace_graph_regs_call:
- .global ftrace_graph_regs_call
+SYM_INNER_LABEL(ftrace_graph_regs_call, SYM_L_GLOBAL)
call ftrace_stub
#endif
RESTORE_ALL
jr t0
-ENDPROC(ftrace_regs_caller)
+SYM_FUNC_END(ftrace_regs_caller)
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */
diff --git a/arch/riscv/kernel/mcount.S b/arch/riscv/kernel/mcount.S
index ab4dd0594fe7..b4dd9ed6849e 100644
--- a/arch/riscv/kernel/mcount.S
+++ b/arch/riscv/kernel/mcount.S
@@ -61,7 +61,7 @@ SYM_TYPED_FUNC_START(ftrace_stub_graph)
ret
SYM_FUNC_END(ftrace_stub_graph)
-ENTRY(return_to_handler)
+SYM_FUNC_START(return_to_handler)
/*
* On implementing the frame point test, the ideal way is to compare the
* s0 (frame pointer, if enabled) on entry and the sp (stack pointer) on return.
@@ -76,11 +76,11 @@ ENTRY(return_to_handler)
mv a2, a0
RESTORE_RET_ABI_STATE
jalr a2
-ENDPROC(return_to_handler)
+SYM_FUNC_END(return_to_handler)
#endif
#ifndef CONFIG_DYNAMIC_FTRACE
-ENTRY(MCOUNT_NAME)
+SYM_FUNC_START(MCOUNT_NAME)
la t4, ftrace_stub
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
la t0, ftrace_graph_return
@@ -126,6 +126,6 @@ ENTRY(MCOUNT_NAME)
jalr t5
RESTORE_ABI_STATE
ret
-ENDPROC(MCOUNT_NAME)
+SYM_FUNC_END(MCOUNT_NAME)
#endif
EXPORT_SYMBOL(MCOUNT_NAME)
diff --git a/arch/riscv/kernel/probes/rethook_trampoline.S b/arch/riscv/kernel/probes/rethook_trampoline.S
index 21bac92a170a..f2cd83d9b0f0 100644
--- a/arch/riscv/kernel/probes/rethook_trampoline.S
+++ b/arch/riscv/kernel/probes/rethook_trampoline.S
@@ -75,7 +75,7 @@
REG_L x31, PT_T6(sp)
.endm
-ENTRY(arch_rethook_trampoline)
+SYM_CODE_START(arch_rethook_trampoline)
addi sp, sp, -(PT_SIZE_ON_STACK)
save_all_base_regs
@@ -90,4 +90,4 @@ ENTRY(arch_rethook_trampoline)
addi sp, sp, PT_SIZE_ON_STACK
ret
-ENDPROC(arch_rethook_trampoline)
+SYM_CODE_END(arch_rethook_trampoline)
diff --git a/arch/riscv/kernel/suspend_entry.S b/arch/riscv/kernel/suspend_entry.S
index f7960c7c5f9e..a59c4c903696 100644
--- a/arch/riscv/kernel/suspend_entry.S
+++ b/arch/riscv/kernel/suspend_entry.S
@@ -16,7 +16,7 @@
.altmacro
.option norelax
-ENTRY(__cpu_suspend_enter)
+SYM_FUNC_START(__cpu_suspend_enter)
/* Save registers (except A0 and T0-T6) */
REG_S ra, (SUSPEND_CONTEXT_REGS + PT_RA)(a0)
REG_S sp, (SUSPEND_CONTEXT_REGS + PT_SP)(a0)
@@ -57,7 +57,7 @@ ENTRY(__cpu_suspend_enter)
/* Return to C code */
ret
-END(__cpu_suspend_enter)
+SYM_FUNC_END(__cpu_suspend_enter)
SYM_TYPED_FUNC_START(__cpu_resume_enter)
/* Load the global pointer */
diff --git a/arch/riscv/kernel/vdso/flush_icache.S b/arch/riscv/kernel/vdso/flush_icache.S
index 82f97d67c23e..8f884227e8bc 100644
--- a/arch/riscv/kernel/vdso/flush_icache.S
+++ b/arch/riscv/kernel/vdso/flush_icache.S
@@ -8,7 +8,7 @@
.text
/* int __vdso_flush_icache(void *start, void *end, unsigned long flags); */
-ENTRY(__vdso_flush_icache)
+SYM_FUNC_START(__vdso_flush_icache)
.cfi_startproc
#ifdef CONFIG_SMP
li a7, __NR_riscv_flush_icache
@@ -19,4 +19,4 @@ ENTRY(__vdso_flush_icache)
#endif
ret
.cfi_endproc
-ENDPROC(__vdso_flush_icache)
+SYM_FUNC_END(__vdso_flush_icache)
diff --git a/arch/riscv/kernel/vdso/getcpu.S b/arch/riscv/kernel/vdso/getcpu.S
index bb0c05e2ffba..9c1bd531907f 100644
--- a/arch/riscv/kernel/vdso/getcpu.S
+++ b/arch/riscv/kernel/vdso/getcpu.S
@@ -8,11 +8,11 @@
.text
/* int __vdso_getcpu(unsigned *cpu, unsigned *node, void *unused); */
-ENTRY(__vdso_getcpu)
+SYM_FUNC_START(__vdso_getcpu)
.cfi_startproc
/* For now, just do the syscall. */
li a7, __NR_getcpu
ecall
ret
.cfi_endproc
-ENDPROC(__vdso_getcpu)
+SYM_FUNC_END(__vdso_getcpu)
diff --git a/arch/riscv/kernel/vdso/rt_sigreturn.S b/arch/riscv/kernel/vdso/rt_sigreturn.S
index 10438c7c626a..3dc022aa8931 100644
--- a/arch/riscv/kernel/vdso/rt_sigreturn.S
+++ b/arch/riscv/kernel/vdso/rt_sigreturn.S
@@ -7,10 +7,10 @@
#include <asm/unistd.h>
.text
-ENTRY(__vdso_rt_sigreturn)
+SYM_FUNC_START(__vdso_rt_sigreturn)
.cfi_startproc
.cfi_signal_frame
li a7, __NR_rt_sigreturn
ecall
.cfi_endproc
-ENDPROC(__vdso_rt_sigreturn)
+SYM_FUNC_END(__vdso_rt_sigreturn)
diff --git a/arch/riscv/kernel/vdso/sys_hwprobe.S b/arch/riscv/kernel/vdso/sys_hwprobe.S
index 4e704146c77a..77e57f830521 100644
--- a/arch/riscv/kernel/vdso/sys_hwprobe.S
+++ b/arch/riscv/kernel/vdso/sys_hwprobe.S
@@ -5,11 +5,11 @@
#include <asm/unistd.h>
.text
-ENTRY(riscv_hwprobe)
+SYM_FUNC_START(riscv_hwprobe)
.cfi_startproc
li a7, __NR_riscv_hwprobe
ecall
ret
.cfi_endproc
-ENDPROC(riscv_hwprobe)
+SYM_FUNC_END(riscv_hwprobe)
diff --git a/arch/riscv/lib/memcpy.S b/arch/riscv/lib/memcpy.S
index 1a40d01a9543..44e009ec5fef 100644
--- a/arch/riscv/lib/memcpy.S
+++ b/arch/riscv/lib/memcpy.S
@@ -7,8 +7,7 @@
#include <asm/asm.h>
/* void *memcpy(void *, const void *, size_t) */
-ENTRY(__memcpy)
-WEAK(memcpy)
+SYM_FUNC_START(__memcpy)
move t6, a0 /* Preserve return value */
/* Defer to byte-oriented copy for small sizes */
@@ -105,6 +104,7 @@ WEAK(memcpy)
bltu a1, a3, 5b
6:
ret
-END(__memcpy)
+SYM_FUNC_END(__memcpy)
+SYM_FUNC_ALIAS_WEAK(memcpy, __memcpy)
SYM_FUNC_ALIAS(__pi_memcpy, __memcpy)
SYM_FUNC_ALIAS(__pi___memcpy, __memcpy)
diff --git a/arch/riscv/lib/memmove.S b/arch/riscv/lib/memmove.S
index 1930b388c3a0..cb3e2e7ef0ba 100644
--- a/arch/riscv/lib/memmove.S
+++ b/arch/riscv/lib/memmove.S
@@ -7,7 +7,6 @@
#include <asm/asm.h>
SYM_FUNC_START(__memmove)
-SYM_FUNC_START_WEAK(memmove)
/*
* Returns
* a0 - dest
@@ -312,7 +311,7 @@ SYM_FUNC_START_WEAK(memmove)
.Lreturn_from_memmove:
ret
-SYM_FUNC_END(memmove)
SYM_FUNC_END(__memmove)
+SYM_FUNC_ALIAS_WEAK(memmove, __memmove)
SYM_FUNC_ALIAS(__pi_memmove, __memmove)
SYM_FUNC_ALIAS(__pi___memmove, __memmove)
diff --git a/arch/riscv/lib/memset.S b/arch/riscv/lib/memset.S
index 34c5360c6705..35f358e70bdb 100644
--- a/arch/riscv/lib/memset.S
+++ b/arch/riscv/lib/memset.S
@@ -8,8 +8,7 @@
#include <asm/asm.h>
/* void *memset(void *, int, size_t) */
-ENTRY(__memset)
-WEAK(memset)
+SYM_FUNC_START(__memset)
move t0, a0 /* Preserve return value */
/* Defer to byte-oriented fill for small sizes */
@@ -110,4 +109,5 @@ WEAK(memset)
bltu t0, a3, 5b
6:
ret
-END(__memset)
+SYM_FUNC_END(__memset)
+SYM_FUNC_ALIAS_WEAK(memset, __memset)
diff --git a/arch/riscv/lib/uaccess.S b/arch/riscv/lib/uaccess.S
index 09b47ebacf2e..3ab438f30d13 100644
--- a/arch/riscv/lib/uaccess.S
+++ b/arch/riscv/lib/uaccess.S
@@ -10,8 +10,7 @@
_asm_extable 100b, \lbl
.endm
-ENTRY(__asm_copy_to_user)
-ENTRY(__asm_copy_from_user)
+SYM_FUNC_START(__asm_copy_to_user)
/* Enable access to user memory */
li t6, SR_SUM
@@ -181,13 +180,13 @@ ENTRY(__asm_copy_from_user)
csrc CSR_STATUS, t6
sub a0, t5, a0
ret
-ENDPROC(__asm_copy_to_user)
-ENDPROC(__asm_copy_from_user)
+SYM_FUNC_END(__asm_copy_to_user)
EXPORT_SYMBOL(__asm_copy_to_user)
+SYM_FUNC_ALIAS(__asm_copy_from_user, __asm_copy_to_user)
EXPORT_SYMBOL(__asm_copy_from_user)
-ENTRY(__clear_user)
+SYM_FUNC_START(__clear_user)
/* Enable access to user memory */
li t6, SR_SUM
@@ -233,5 +232,5 @@ ENTRY(__clear_user)
csrc CSR_STATUS, t6
sub a0, a3, a0
ret
-ENDPROC(__clear_user)
+SYM_FUNC_END(__clear_user)
EXPORT_SYMBOL(__clear_user)
diff --git a/arch/riscv/purgatory/entry.S b/arch/riscv/purgatory/entry.S
index 0194f4554130..5bcf3af903da 100644
--- a/arch/riscv/purgatory/entry.S
+++ b/arch/riscv/purgatory/entry.S
@@ -7,15 +7,11 @@
* Author: Li Zhengyu (lizhengyu3@huawei.com)
*
*/
-
-.macro size, sym:req
- .size \sym, . - \sym
-.endm
+#include <linux/linkage.h>
.text
-.globl purgatory_start
-purgatory_start:
+SYM_CODE_START(purgatory_start)
lla sp, .Lstack
mv s0, a0 /* The hartid of the current hart */
@@ -28,8 +24,7 @@ purgatory_start:
mv a1, s1
ld a2, riscv_kernel_entry
jr a2
-
-size purgatory_start
+SYM_CODE_END(purgatory_start)
.align 4
.rept 256
@@ -39,9 +34,6 @@ size purgatory_start
.data
-.globl riscv_kernel_entry
-riscv_kernel_entry:
- .quad 0
-size riscv_kernel_entry
+SYM_DATA(riscv_kernel_entry, .quad 0)
.end
--
2.42.0
next prev parent reply other threads:[~2023-10-24 13:28 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-24 13:26 [PATCH v2 0/5] riscv: cleanup assembly usage of ENTRY()/END() and use local labels Clément Léger
2023-10-24 13:26 ` Clément Léger
2023-10-24 13:26 ` [PATCH v2 1/5] riscv: use ".L" local labels in assembly when applicable Clément Léger
2023-10-24 13:26 ` Clément Léger
2023-10-24 13:26 ` Clément Léger [this message]
2023-10-24 13:26 ` [PATCH v2 2/5] riscv: Use SYM_*() assembly macros instead of deprecated ones Clément Léger
2023-10-24 15:23 ` Andrew Jones
2023-10-24 15:23 ` Andrew Jones
2023-10-24 18:03 ` Clément Léger
2023-10-24 18:03 ` Clément Léger
2023-10-25 6:50 ` Andrew Jones
2023-10-25 6:50 ` Andrew Jones
2023-10-26 7:53 ` Clément Léger
2023-10-26 7:53 ` Clément Léger
2023-10-24 13:26 ` [PATCH v2 3/5] riscv: kernel: Use correct SYM_DATA_*() macro for data Clément Léger
2023-10-24 13:26 ` Clément Léger
2023-10-24 13:26 ` [PATCH v2 4/5] riscv: kvm: Use SYM_*() assembly macros instead of deprecated ones Clément Léger
2023-10-24 13:26 ` Clément Léger
2023-11-06 17:47 ` Palmer Dabbelt
2023-11-06 17:47 ` Palmer Dabbelt
2023-12-13 6:16 ` Anup Patel
2023-12-13 6:16 ` Anup Patel
2023-10-24 13:26 ` [PATCH v2 5/5] riscv: kvm: use ".L" local labels in assembly when applicable Clément Léger
2023-10-24 13:26 ` Clément Léger
2023-11-06 17:47 ` Palmer Dabbelt
2023-11-06 17:47 ` Palmer Dabbelt
2023-12-13 6:16 ` Anup Patel
2023-12-13 6:16 ` Anup Patel
2023-11-07 6:50 ` [PATCH v2 0/5] riscv: cleanup assembly usage of ENTRY()/END() and use local labels patchwork-bot+linux-riscv
2023-11-07 6:50 ` patchwork-bot+linux-riscv
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