From: Anton Blanchard <anton@samba.org>
To: benh@kernel.crashing.org, paulus@samba.org,
rusty@rustcorp.com.au, ulrich.weigand@de.ibm.com,
amodra@gmail.com, mikey@neuling.org, mjw@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 25/33] powerpc: module: handle MODVERSION for .TOC.
Date: Tue, 25 Mar 2014 22:44:31 +1100 [thread overview]
Message-ID: <1395747879-5948-26-git-send-email-anton@samba.org> (raw)
In-Reply-To: <1395747879-5948-1-git-send-email-anton@samba.org>
From: Rusty Russell <rusty@rustcorp.com.au>
For the ELFv2 ABI, powerpc introduces a magic symbol ".TOC.". If we
don't create a CRC for it (minus the leading ".", since we strip that)
we get a modpost warning about missing CRC and the CRC array seems to
be displaced by 1 so other CRCs mismatch too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
arch/powerpc/kernel/misc_64.S | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index b80fafb..4e314b9 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -637,6 +637,15 @@ _GLOBAL(kexec_sequence)
#ifdef CONFIG_MODULES
#if defined(_CALL_ELF) && _CALL_ELF == 2
+
+#ifdef CONFIG_MODVERSIONS
+.weak __crc_TOC.
+.section "___kcrctab+TOC.","a"
+.globl __kcrctab_TOC.
+__kcrctab_TOC.:
+ .llong __crc_TOC.
+#endif
+
/*
* Export a fake .TOC. since both modpost and depmod will complain otherwise.
* Both modpost and depmod strip the leading . so we do the same here.
--
1.8.3.2
next prev parent reply other threads:[~2014-03-25 11:44 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-25 11:44 [PATCH 00/33] Build ppc64le kernel using ABIv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 01/33] powerpc: No need to use dot symbols when branching to a function Anton Blanchard
2014-03-25 11:44 ` [PATCH 02/33] powerpc: Remove superflous function descriptors in assembly only code Anton Blanchard
2014-03-25 11:44 ` [PATCH 03/33] powerpc: Don't use a function descriptor for system call table Anton Blanchard
2014-03-25 11:44 ` [PATCH 04/33] powerpc: Remove some unnecessary uses of _GLOBAL() and _STATIC() Anton Blanchard
2014-03-25 11:44 ` [PATCH 05/33] powerpc: Remove _INIT_GLOBAL(), _STATIC() and _INIT_STATIC() Anton Blanchard
2014-03-25 11:44 ` [PATCH 06/33] powerpc: Remove dot symbol usage in exception macros Anton Blanchard
2014-03-25 11:44 ` [PATCH 07/33] powerpc: Create DOTSYM to wrap dot symbol usage Anton Blanchard
2014-03-25 11:44 ` [PATCH 08/33] powerpc: Remove function descriptors and dot symbols on new ABI Anton Blanchard
2014-03-25 11:44 ` [PATCH 09/33] powerpc: ABIv2 function calls must place target address in r12 Anton Blanchard
2014-03-25 11:44 ` [PATCH 10/33] powerpc: Ignore TOC relocations Anton Blanchard
2014-03-26 9:36 ` Alan Modra
2014-04-22 22:02 ` Anton Blanchard
2014-03-25 11:44 ` [PATCH 11/33] powerpc: Add ABIv2 support to ppc_function_entry Anton Blanchard
2014-03-25 11:44 ` [PATCH 12/33] powerpc: Use ppc_function_entry instead of open coding it Anton Blanchard
2014-03-25 11:44 ` [PATCH 13/33] powerpc: Fix branch patching code for ABIv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 14/33] powerpc: Fix kernel thread creation on ABIv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 15/33] powerpc: Fix ABIv2 issues with stack offsets in assembly code Anton Blanchard
2014-03-26 10:04 ` Alan Modra
2014-03-26 10:06 ` Alan Modra
2014-04-01 13:54 ` Philippe Bergheaud
2014-03-25 11:44 ` [PATCH 16/33] powerpc: Fix unsafe accesses to parameter area in ELFv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 17/33] powerpc/tm: Use STK_PARAM Anton Blanchard
2014-03-25 11:44 ` [PATCH 18/33] powerpc/tm: Fix GOT save offset for ABIv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 19/33] powerpc/tracing: TRACE_WITH_FRAME_BUFFER creates invalid stack frames Anton Blanchard
2014-03-25 11:44 ` [PATCH 20/33] powerpc: Fix SMP issues with ppc64le ABIv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 21/33] powerpc: Fix ABIv2 issue with dereference_function_descriptor Anton Blanchard
2014-03-25 11:44 ` [PATCH 22/33] powerpc: make module stub code endian independent Anton Blanchard
2014-03-25 11:44 ` [PATCH 23/33] powerpc: modules implement R_PPC64_TOCSAVE relocation Anton Blanchard
2014-03-25 11:44 ` [PATCH 24/33] powerpc: EXPORT_SYMBOL(.TOC.) Anton Blanchard
2014-03-25 11:44 ` Anton Blanchard [this message]
2014-03-25 11:44 ` [PATCH 26/33] powerpc: Fix up TOC. for modules Anton Blanchard
2014-03-25 11:44 ` [PATCH 27/33] powerpc: Handle new ELFv2 module relocations Anton Blanchard
2014-03-26 10:28 ` Alan Modra
2014-03-25 11:44 ` [PATCH 28/33] powerpc: modules: comment about de-dotifying symbols when using the ELFv2 ABI Anton Blanchard
2014-03-25 11:44 ` [PATCH 29/33] powerpc: modules: change r2 save/restore offset for " Anton Blanchard
2014-03-25 11:44 ` [PATCH 30/33] powerpc: modules: use r12 for stub jump address Anton Blanchard
2014-03-25 11:44 ` [PATCH 31/33] powerpc: modules: skip r2 setup for ELFv2 Anton Blanchard
2014-03-25 11:44 ` [PATCH 32/33] powerpc: modules: implement stubs for ELFv2 ABI Anton Blanchard
2014-03-25 11:44 ` [PATCH 33/33] powerpc: Build little endian ppc64 kernel with ABIv2 Anton Blanchard
2014-03-25 13:18 ` [PATCH 00/33] Build ppc64le kernel using ABIv2 Ulrich Weigand
2014-03-26 11:20 ` Anton Blanchard
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