From: Jiri Slaby <jslaby@suse.cz>
To: mingo@redhat.com
Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
Jiri Slaby <jslaby@suse.cz>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org
Subject: [PATCH -resend 15/27] x86: assembly, do not annotate functions by GLOBAL
Date: Thu, 10 May 2018 10:06:32 +0200 [thread overview]
Message-ID: <20180510080644.19752-16-jslaby@suse.cz> (raw)
In-Reply-To: <20180510080644.19752-1-jslaby@suse.cz>
GLOBAL is meant for global symbols, but not functions. Use the new
macros SYM_FUNC_START* and SYM_CODE_START* (depending on the type of the
function) which are dedicated for global functions. And since they both
require a closing by SYM_*_END, we do this here too.
startup_64, which does not use GLOBAL, but uses .globl explicitly, is
converted too.
in_pm32 should not be global at all as it is used only locally, so
switch to SYM_FUNC_START_LOCAL_NOALIGN.
Besides all of that, x86's custom GLOBAL macro is going to die very
soon.
"No alignments" are preserved.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: <x86@kernel.org>
---
arch/x86/boot/copy.S | 16 ++++++++--------
arch/x86/boot/pmjump.S | 8 ++++----
arch/x86/kernel/head_64.S | 5 +++--
3 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index 15d9f74b0008..73aa8307a10f 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -17,7 +17,7 @@
.code16
.text
-GLOBAL(memcpy)
+SYM_FUNC_START_NOALIGN(memcpy)
pushw %si
pushw %di
movw %ax, %di
@@ -31,9 +31,9 @@ GLOBAL(memcpy)
popw %di
popw %si
retl
-ENDPROC(memcpy)
+SYM_FUNC_END(memcpy)
-GLOBAL(memset)
+SYM_FUNC_START_NOALIGN(memset)
pushw %di
movw %ax, %di
movzbl %dl, %eax
@@ -46,22 +46,22 @@ GLOBAL(memset)
rep; stosb
popw %di
retl
-ENDPROC(memset)
+SYM_FUNC_END(memset)
-GLOBAL(copy_from_fs)
+SYM_FUNC_START_NOALIGN(copy_from_fs)
pushw %ds
pushw %fs
popw %ds
calll memcpy
popw %ds
retl
-ENDPROC(copy_from_fs)
+SYM_FUNC_END(copy_from_fs)
-GLOBAL(copy_to_fs)
+SYM_FUNC_START_NOALIGN(copy_to_fs)
pushw %es
pushw %fs
popw %es
calll memcpy
popw %es
retl
-ENDPROC(copy_to_fs)
+SYM_FUNC_END(copy_to_fs)
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index 3e0edc6d2a20..b90e42eb1a62 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -23,7 +23,7 @@
/*
* void protected_mode_jump(u32 entrypoint, u32 bootparams);
*/
-GLOBAL(protected_mode_jump)
+SYM_FUNC_START_NOALIGN(protected_mode_jump)
movl %edx, %esi # Pointer to boot_params table
xorl %ebx, %ebx
@@ -44,11 +44,11 @@ GLOBAL(protected_mode_jump)
.byte 0x66, 0xea # ljmpl opcode
2: .long in_pm32 # offset
.word __BOOT_CS # segment
-ENDPROC(protected_mode_jump)
+SYM_FUNC_END(protected_mode_jump)
.code32
.section ".text32","ax"
-GLOBAL(in_pm32)
+SYM_FUNC_START_LOCAL_NOALIGN(in_pm32)
# Set up data segments for flat 32-bit mode
movl %ecx, %ds
movl %ecx, %es
@@ -74,4 +74,4 @@ GLOBAL(in_pm32)
lldt %cx
jmpl *%eax # Jump to the 32-bit entrypoint
-ENDPROC(in_pm32)
+SYM_FUNC_END(in_pm32)
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 80b620c824eb..48e71043b99c 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -50,8 +50,7 @@ L3_START_KERNEL = pud_index(__START_KERNEL_map)
.text
__HEAD
.code64
- .globl startup_64
-startup_64:
+SYM_CODE_START_NOALIGN(startup_64)
UNWIND_HINT_EMPTY
/*
* At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
@@ -91,6 +90,8 @@ startup_64:
/* Form the CR3 value being sure to include the CR3 modifier */
addq $(early_top_pgt - __START_KERNEL_map), %rax
jmp 1f
+SYM_CODE_END(startup_64)
+
ENTRY(secondary_startup_64)
UNWIND_HINT_EMPTY
/*
--
2.16.3
next prev parent reply other threads:[~2018-05-10 8:06 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-10 8:06 [PATCH -resend 00/27] New macros for assembler symbols Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 01/27] linkage: new " Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-14 3:04 ` Randy Dunlap
2018-05-14 3:04 ` Randy Dunlap
2018-05-14 12:54 ` Jiri Slaby
2018-05-14 12:54 ` Jiri Slaby
2018-05-14 8:03 ` Ingo Molnar
2018-05-14 8:03 ` Ingo Molnar
2018-05-10 8:06 ` [PATCH -resend 02/27] x86: assembly, use SYM_DATA for data Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-14 8:05 ` Ingo Molnar
2018-05-14 8:05 ` Ingo Molnar
2018-05-15 6:39 ` Ingo Molnar
2018-05-15 6:39 ` Ingo Molnar
2018-05-18 9:17 ` Jiri Slaby
2018-05-18 9:17 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 03/27] x86: assembly, annotate relocate_kernel Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 04/27] x86: entry, annotate THUNKs Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 05/27] x86: assembly, annotate local pseudo-functions Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 06/27] x86: crypto, annotate local functions Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 07/27] x86: boot, " Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 08/27] x86: assembly, annotate aliases Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 09/27] x86: entry, annotate interrupt symbols properly Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 10/27] x86: head, annotate data appropriatelly Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 11/27] x86: boot, " Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 12/27] x86: um, " Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 13/27] x86: xen-pvh, " Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 14/27] x86: purgatory, start using annotations Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby [this message]
2018-05-10 8:06 ` [PATCH -resend 15/27] x86: assembly, do not annotate functions by GLOBAL Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 16/27] x86: assembly, use SYM_CODE_INNER_LABEL instead of GLOBAL Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 17/27] x86: realmode, use SYM_DATA_* " Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 18/27] x86: assembly, remove GLOBAL macro Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 19/27] x86: assembly, make some functions local Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 20/27] x86: ftrace, mark function_hook as function Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 21/27] x86_64: assembly, add ENDs to some functions and relabel with SYM_CODE_* Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 22/27] x86_64: assembly, change all ENTRY+END to SYM_CODE_* Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 23/27] x86_64: assembly, change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 24/27] x86_32: assembly, add ENDs to some functions and relabel with SYM_CODE_* Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 25/27] x86_32: assembly, change all ENTRY+END to SYM_CODE_* Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 26/27] x86_32: assembly, change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-10 8:06 ` [PATCH -resend 27/27] x86: assembly, replace WEAK uses Jiri Slaby
2018-05-10 8:06 ` Jiri Slaby
2018-05-14 8:10 ` [PATCH -resend 00/27] New macros for assembler symbols Ingo Molnar
2018-05-14 8:10 ` Ingo Molnar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180510080644.19752-16-jslaby@suse.cz \
--to=jslaby@suse.cz \
--cc=hpa@zytor.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).