lkml.org 
[lkml]   [2021]   [Sep]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.19 022/293] powerpc/boot: Delete unneeded .globl _zimage_start
Date
From: Fangrui Song <maskray@google.com>

commit 968339fad422a58312f67718691b717dac45c399 upstream.

.globl sets the symbol binding to STB_GLOBAL while .weak sets the
binding to STB_WEAK. GNU as let .weak override .globl since
binutils-gdb 5ca547dc2399a0a5d9f20626d4bf5547c3ccfddd (1996). Clang
integrated assembler let the last win but it may error in the future.

Since it is a convention that only one binding directive is used, just
delete .globl.

Fixes: ee9d21b3b358 ("powerpc/boot: Ensure _zimage_start is a weak symbol")
Signed-off-by: Fangrui Song <maskray@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200325164257.170229-1-maskray@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/powerpc/boot/crt0.S | 3 ---
1 file changed, 3 deletions(-)

--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -49,9 +49,6 @@ p_end: .long _end
p_pstack: .long _platform_stack_top
#endif

- .globl _zimage_start
- /* Clang appears to require the .weak directive to be after the symbol
- * is defined. See https://bugs.llvm.org/show_bug.cgi?id=38921 */
.weak _zimage_start
_zimage_start:
.globl _zimage_start_lib

\
 
 \ /
  Last update: 2021-09-20 19:35    [W:1.152 / U:1.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site