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toolchain: add hidden symbol for PIE support

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uClibc-ng does not support PIE for some architectures as
arc and m68k. It isn't implemented in the static linking case, too.
With musl toolchains you might have static PIE support with little
patching of gcc. Static linking for GNU libc isn't enabled in
buildroot. Fixup any package using special treatment of PIE.
(grep -ir pie package/*/*.mk)

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas: use positive logic.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Waldemar Brodkorb
2016-07-11 16:35:14 +02:00
committed by Thomas Petazzoni
parent 58b573c252
commit 3c93901bcd
13 changed files with 18 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
toolchain/Config.in
View File

@@ -15,9 +15,11 @@ config BR2_TOOLCHAIN_USES_GLIBC
select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
select BR2_TOOLCHAIN_HAS_THREADS_NPTL
select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
select BR2_TOOLCHAIN_SUPPORTS_PIE
config BR2_TOOLCHAIN_USES_UCLIBC
bool
select BR2_TOOLCHAIN_SUPPORTS_PIE if !BR2_arc && !BR2_m68k && !BR2_STATIC_LIBS
config BR2_TOOLCHAIN_USES_MUSL
bool
@@ -26,6 +28,7 @@ config BR2_TOOLCHAIN_USES_MUSL
select BR2_TOOLCHAIN_HAS_THREADS
select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
select BR2_TOOLCHAIN_HAS_THREADS_NPTL
select BR2_TOOLCHAIN_SUPPORTS_PIE
choice
prompt "Toolchain type"

3
toolchain/toolchain-common.in
View File

@@ -39,6 +39,9 @@ config BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
config BR2_TOOLCHAIN_HAS_SSP
bool
config BR2_TOOLCHAIN_SUPPORTS_PIE
bool
config BR2_ENABLE_LOCALE_PURGE
bool "Purge unwanted locales"
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