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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-04-28 10:05:25 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-05-18 06:15:02 -0700 |
| commit | 674ea88294bfb8d89878a0ebbbcec38a85e118a5 (patch) | |
| tree | 35c81a44dc6e7eea5f406bbba208dec19f2114a7 /sysdeps/x86/dl-procruntime.c | |
| parent | cbfc16122e9c4948b3a17224aeb5f8b70f02417d (diff) | |
| download | glibc-674ea88294bfb8d89878a0ebbbcec38a85e118a5.tar.gz glibc-674ea88294bfb8d89878a0ebbbcec38a85e118a5.tar.xz glibc-674ea88294bfb8d89878a0ebbbcec38a85e118a5.zip | |
x86: Move CET control to _dl_x86_feature_control [BZ #25887]
1. Include <dl-procruntime.c> to get architecture specific initializer in rtld_global. 2. Change _dl_x86_feature_1[2] to _dl_x86_feature_1. 3. Add _dl_x86_feature_control after _dl_x86_feature_1, which is a struct of 2 bitfields for IBT and SHSTK control This fixes [BZ #25887].
Diffstat (limited to 'sysdeps/x86/dl-procruntime.c')
| -rw-r--r-- | sysdeps/x86/dl-procruntime.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sysdeps/x86/dl-procruntime.c b/sysdeps/x86/dl-procruntime.c index 5e39a38133..2c3e97952b 100644 --- a/sysdeps/x86/dl-procruntime.c +++ b/sysdeps/x86/dl-procruntime.c @@ -47,7 +47,27 @@ # if !defined PROCINFO_DECL && defined SHARED ._dl_x86_feature_1 # else -PROCINFO_CLASS unsigned int _dl_x86_feature_1[2] +PROCINFO_CLASS unsigned int _dl_x86_feature_1 +# endif +# ifndef PROCINFO_DECL += 0 +# endif +# if !defined SHARED || defined PROCINFO_DECL +; +# else +, +# endif + +# if !defined PROCINFO_DECL && defined SHARED + ._dl_x86_feature_control +# else +PROCINFO_CLASS struct dl_x86_feature_control _dl_x86_feature_control +# endif +# ifndef PROCINFO_DECL += { + .ibt = cet_elf_property, + .shstk = cet_elf_property + } # endif # if !defined SHARED || defined PROCINFO_DECL ; |