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From: Joel Stanley <joel@jms.id.au>
To: linuxppc-dev@lists.ozlabs.org
Cc: Stephen Rothwell <sfr@canb.auug.org.au>, Alan Modra <amodra@gmail.com>
Subject: [PATCH v3 2/3] powerpc: Discard dynsym section for !PPC32
Date: Tue, 11 Dec 2018 08:58:53 +1030	[thread overview]
Message-ID: <20181210222854.21156-3-joel@jms.id.au> (raw)
In-Reply-To: <20181210222854.21156-1-joel@jms.id.au>

Alan Modra <amodra@gmail.com> explains:

 > Likely you could discard .interp > and .dynstr too, and .dynsym when
 > !CONFIG_PPC32.

Discarding of interp and dynstr happened in a previous patch. The dynsym
cleanup was a bit less straightforward, so it gets it's own patch.

Signed-off-by: Joel Stanley <joel@jms.id.au>
---
See https://lore.kernel.org/lkml/CACPK8Xft3n5KkpTjN3=7_VUCXHFcK7mxvZm2Rrqu7tppcBoyOg@mail.gmail.com/T/#m58532c86cf0c7b4fb01cc1fe724e48d4c7d8e4a7

v3: Move dynstr hunk to patch 1 (it was incorrectly left in this patch)
---
 arch/powerpc/kernel/vmlinux.lds.S | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 779b8b3075a1..2c93a420f456 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -266,13 +266,13 @@ SECTIONS
 	}
 #ifdef CONFIG_RELOCATABLE
 	. = ALIGN(8);
+#ifdef CONFIG_PPC32
 	.dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET)
 	{
-#ifdef CONFIG_PPC32
 		__dynamic_symtab = .;
-#endif
 		*(.dynsym)
 	}
+#endif
 	.dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET)
 	{
 		__dynamic_start = .;
@@ -388,5 +388,8 @@ SECTIONS
 		*(.hash .gnu.hash)
 		*(.interp)
 		*(.dynstr)
+#ifndef CONFIG_PPC32
+		*(.dynsym)
+#endif
 	}
 }
-- 
2.19.1


  parent reply	other threads:[~2018-12-10 22:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-10 22:28 [PATCH v3 0/3] powerpc: Add to linker script discards Joel Stanley
2018-12-10 22:28 ` [PATCH v3 1/3] powerpc: Discard more sections in linker script Joel Stanley
2018-12-20 11:18   ` Michael Ellerman
2018-12-10 22:28 ` Joel Stanley [this message]
2018-12-20 11:20   ` [PATCH v3 2/3] powerpc: Discard dynsym section for !PPC32 Michael Ellerman
2018-12-10 22:28 ` [PATCH v3 3/3] powerpc: Discard .branch_lt section Joel Stanley

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