buildroot/package/libunwind, branch 2016.02

libunwind: fix C library dependency

2016-02-01T18:32:42+00:00

The libunwind package currently dependency on glibc *or* uclibc snapshot. However, we are going to remove the support for uclibc snapshot, and uClibc-ng has equivalent functionality as uclibc snapshot. Moreover, musl is also capable of building libunwind for certain architectures. Therefore, this commit reworks the architecture dependencies of libunwind, to make it available on all architectures for which it is supported, depending on the capabilities of the different C libraries, and the implementation of libunwind on each architecture. On some architectures, libunwind uses the C library *context() functions, which are not provided by musl at all, and not provided by uClibc on all architectures. But on some other architectures, libunwind does not use the C library *context() functions, which explains why it can be built with musl on such architectures. Signed-off-by: Thomas Petazzoni Signed-off-by: Peter Korsgaard

libunwind: add hash file

2015-07-28T20:32:57+00:00

Signed-off-by: Gustavo Zacarias Signed-off-by: Thomas Petazzoni

libunwind: fix comment dependencies

2014-11-16T23:22:47+00:00

Comment should be shown when no threads OR not uclibc-snapshot / glibc, not AND. Signed-off-by: Peter Korsgaard

package/libunwind: link to libgcc_s, not libgcc

2014-11-16T23:11:51+00:00

Backport a fix from upstream to link against libgcc_s instead of libgcc. Fixes ltrace build failures: http://autobuild.buildroot.net/results/a0c/a0c132f8cdea2c34ceff27606764a60c2853f644/ http://autobuild.buildroot.net/results/67f/67fbd04d6ae187861fa1bf84d3df1877c7be6fb2/ http://autobuild.buildroot.net/results/0ca/0ca564101b870e5953acb66ac832ce9e23198392/ ... Signed-off-by: "Yann E. MORIN" Signed-off-by: Peter Korsgaard

libunwind: depend on libatomic_ops when available

2014-05-16T14:11:20+00:00

Signed-off-by: Baruch Siach Acked-by: Thomas Petazzoni Signed-off-by: Peter Korsgaard

libunwind: add patch to fix behavior for ARM < v6

2014-05-14T07:24:53+00:00

Since libatomic_ops does not implement real atomic operations for ARMv4 and ARMv5, libunwind must define AO_REQUIRE_CAS do indicate it requires compare-and-swap operations, even if not available as real atomic operations for the current architecture. In this case, libatomic_ops will rely on emulated atomic operations, which also require linking against libatomic_ops, which was until now not done by libunwind. This fixes the mysterious ltrace build issue: http://autobuild.buildroot.org/results/e1b/e1b330abfa2d80f3f30bc3359428ea429c690eb8/ Signed-off-by: Thomas Petazzoni Cc: Baruch Siach Signed-off-by: Peter Korsgaard

libunwind: needs set/getcontext, which only got added to uClibc post-0.9.33

2014-04-06T22:35:46+00:00

Fixes http://autobuild.buildroot.net/results/3e8/3e8670ab1454118baf1e4a5ca632d45963ba3781/ Signed-off-by: Peter Korsgaard

Config.in files: add missing dependencies to toolchain option comments

2013-11-10T22:59:57+00:00

When a package A depends on config option B and toolchain option C, then the comment that is given when C is not fulfilled should also depend on B. For example: config BR2_PACKAGE_A depends on BR2_B depends on BR2_LARGEFILE depends on BR2_WCHAR comment "A needs a toolchain w/ largefile, wchar" depends on !BR2_LARGEFILE || !BR2_WCHAR This comment should actually be: comment "A needs a toolchain w/ largefile, wchar" depends on BR2_B depends on !BR2_LARGEFILE || !BR2_WCHAR or if possible (typically when B is a package config option declared in that same Config.in file): if BR2_B comment "A needs a toolchain w/ largefile, wchar" depends on !BR2_LARGEFILE || !BR2_WCHAR [other config options depending on B] endif Otherwise, the comment would be visible even though the other dependencies are not met. This patch adds such missing dependencies, and changes existing such dependencies from depends on BR2_BASE_DEP && !BR2_TOOLCHAIN_USES_GLIBC to depends on BR2_BASE_DEP depends on !BR2_TOOLCHAIN_USES_GLIBC so that (positive) base dependencies are separate from the (negative) toolchain dependencies. This strategy makes it easier to write such comments (because one can simply copy the base dependency from the actual package config option), but also avoids complex and long boolean expressions. Signed-off-by: Thomas De Schampheleire Acked-by: Arnout Vandecappelle (Essensium/Mind) (untested) Signed-off-by: Peter Korsgaard

Config.in files: unify comments of toolchain option dependencies

2013-10-14T20:45:57+00:00

This patch lines up the comments in Config.in files that clarify which toolchain options the package depends on. Signed-off-by: Thomas De Schampheleire Signed-off-by: Peter Korsgaard

libunwind: needs threads

2013-09-10T19:52:36+00:00

Fixes: http://autobuild.buildroot.net/results/39a/39a32d323252e3d986fd9290108db7a496d429d9/ Signed-off-by: Gustavo Zacarias Signed-off-by: Peter Korsgaard