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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2017-05-31 06:38:32 +0530 |
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| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2017-05-31 06:38:33 +0530 |
| commit | 4158ba082c641f407009363b186b4c85f8a01a35 (patch) | |
| tree | fcce87f0eaeed4b2c2e76f68fcc41a73f2c63b29 /ChangeLog | |
| parent | 2e0bbbfbf95fc9e22692e93658a6fbdd2d4554da (diff) | |
| download | glibc-4158ba082c641f407009363b186b4c85f8a01a35.tar.gz glibc-4158ba082c641f407009363b186b4c85f8a01a35.tar.xz glibc-4158ba082c641f407009363b186b4c85f8a01a35.zip | |
Delay initialization of CPU features struct in static binaries
Allow the CPU features structure set up to be overridden by tunables by delaying it to until after tunables are initialized. The initialization is already delayed in dynamically linked glibc, it is only in static binaries that the initialization is set early to allow it to influence IFUNC relocations that happen in libc-start. It is a bit too early however and there is a good place between tunables initialization and IFUNC relocations where this can be done. Verified that this does not regress the testsuite. * csu/libc-start.c [!ARCH_INIT_CPU_FEATURES]: Define ARCH_INIT_CPU_FEATURES. (LIBC_START_MAIN): Call it. * sysdeps/unix/sysv/linux/aarch64/libc-start.c (__libc_start_main): Remove. (ARCH_INIT_CPU_FEATURES): New macro. * sysdeps/x86/libc-start.c (__libc_start_main): Remove. (ARCH_INIT_CPU_FEATURES): New macro.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 876244a00a..859f582c3a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,14 @@ +2017-05-31 Siddhesh Poyarekar <siddhesh@sourceware.org> + + * csu/libc-start.c [!ARCH_INIT_CPU_FEATURES]: Define + ARCH_INIT_CPU_FEATURES. + (LIBC_START_MAIN): Call it. + * sysdeps/unix/sysv/linux/aarch64/libc-start.c + (__libc_start_main): Remove. + (ARCH_INIT_CPU_FEATURES): New macro. + * sysdeps/x86/libc-start.c (__libc_start_main): Remove. + (ARCH_INIT_CPU_FEATURES): New macro. + 2017-05-30 Dennis Wölfing <denniswoelfing@gmx.de> Rüdiger Sonderfeld <ruediger@c-plusplus.de> |