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From 9d9f97ca5d1ceba66677bf406c9b31027dc1f22e Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Fri, 19 Aug 2016 13:54:46 +0200
Subject: [PATCH] libgcc: fix DWARF compilation with FDPIC targets
The build of unwind-dw2-fde-dip.c currently fails for FDPIC targets with
the following error:
libgcc/unwind-dw2-fde-dip.c:167:31: error: storage size of 'load_base' isn't known
struct elf32_fdpic_loadaddr load_base;
This patch addresses that by defining load_base with the appropriate
type on FDPIC targets. It has been tested on FRV and Blackfin.
Fixes PR gcc/68468.
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
libgcc/ChangeLog | 5 +++++
libgcc/unwind-dw2-fde-dip.c | 8 ++++++--
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 36c0194..2e78d20 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-08-19 Waldemar Brodkorb <wbx@openadk.org>
+
+ PR gcc/68468
+ * libgcc/unwind-dw2-fde-dip.c: fix build on FDPIC targets.
+
2016-08-19 Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
PR gcc/74748
diff --git a/libgcc/unwind-dw2-fde-dip.c b/libgcc/unwind-dw2-fde-dip.c
index f7a1c3f..801bce8 100644
--- a/libgcc/unwind-dw2-fde-dip.c
+++ b/libgcc/unwind-dw2-fde-dip.c
@@ -124,7 +124,11 @@ static struct frame_hdr_cache_element
{
_Unwind_Ptr pc_low;
_Unwind_Ptr pc_high;
+#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__
+ struct elf32_fdpic_loadaddr load_base;
+#else
_Unwind_Ptr load_base;
+#endif
const ElfW(Phdr) *p_eh_frame_hdr;
const ElfW(Phdr) *p_dynamic;
struct frame_hdr_cache_element *link;
@@ -163,7 +167,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr;
const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic;
long n, match;
-#ifdef __FRV_FDPIC__
+#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__
struct elf32_fdpic_loadaddr load_base;
#else
_Unwind_Ptr load_base;
@@ -347,7 +351,7 @@ _Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
break;
}
}
-# elif defined __FRV_FDPIC__ && defined __linux__
+# elif (defined __FRV_FDPIC__ || defined __BFIN_FDPIC__) && defined __linux__
data->dbase = load_base.got_value;
# else
# error What is DW_EH_PE_datarel base on this platform?
--
2.7.4
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