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commit 93fda28693f0d9060b0aa71eeacaacfe9f16896e
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Author: H.J. Lu <hjl.tools@gmail.com>
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Date: Thu Dec 3 15:02:44 2020 -0800
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x86: Adjust tst-cpu-features-supports.c for GCC 11
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Check HAS_CPU_FEATURE instead of CPU_FEATURE_USABLE for FSGSBASE, IBT,
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LM, SHSTK and XSAVES since FSGSBASE requires kernel support, IBT/SHSTK/LM
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require OS support and XSAVES is supervisor-mode only.
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diff --git a/sysdeps/x86/tst-cpu-features-supports.c b/sysdeps/x86/tst-cpu-features-supports.c
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index bf881b531f4bc2ed..287cf01fbdfaeda1 100644
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--- a/sysdeps/x86/tst-cpu-features-supports.c
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+++ b/sysdeps/x86/tst-cpu-features-supports.c
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@@ -40,6 +40,11 @@ check_supports (int supports, int usable, const char *supports_name,
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#define CHECK_SUPPORTS(str, name) \
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check_supports (__builtin_cpu_supports (#str), \
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CPU_FEATURE_USABLE (name), \
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+ #str, "CPU_FEATURE_USABLE (" #name ")");
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+
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+#define CHECK_CPU_SUPPORTS(str, name) \
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+ check_supports (__builtin_cpu_supports (#str), \
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+ HAS_CPU_FEATURE (name), \
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#str, "HAS_CPU_FEATURE (" #name ")");
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static int
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@@ -118,7 +123,7 @@ do_test (int argc, char **argv)
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fails += CHECK_SUPPORTS (fma4, FMA4);
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#endif
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#if __GNUC_PREREQ (11, 0)
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- fails += CHECK_SUPPORTS (fsgsbase, FSGSBASE);
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+ fails += CHECK_CPU_SUPPORTS (fsgsbase, FSGSBASE);
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fails += CHECK_SUPPORTS (fxsave, FXSR);
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#endif
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#if __GNUC_PREREQ (8, 0)
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@@ -126,9 +131,9 @@ do_test (int argc, char **argv)
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#endif
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#if __GNUC_PREREQ (11, 0)
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fails += CHECK_SUPPORTS (hle, HLE);
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- fails += CHECK_SUPPORTS (ibt, IBT);
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+ fails += CHECK_CPU_SUPPORTS (ibt, IBT);
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fails += CHECK_SUPPORTS (lahf_lm, LAHF64_SAHF64);
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- fails += CHECK_SUPPORTS (lm, LM);
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+ fails += CHECK_CPU_SUPPORTS (lm, LM);
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fails += CHECK_SUPPORTS (lwp, LWP);
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fails += CHECK_SUPPORTS (lzcnt, LZCNT);
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#endif
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@@ -150,7 +155,7 @@ do_test (int argc, char **argv)
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fails += CHECK_SUPPORTS (rtm, RTM);
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fails += CHECK_SUPPORTS (serialize, SERIALIZE);
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fails += CHECK_SUPPORTS (sha, SHA);
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- fails += CHECK_SUPPORTS (shstk, SHSTK);
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+ fails += CHECK_CPU_SUPPORTS (shstk, SHSTK);
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#endif
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fails += CHECK_SUPPORTS (sse, SSE);
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fails += CHECK_SUPPORTS (sse2, SSE2);
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@@ -180,7 +185,7 @@ do_test (int argc, char **argv)
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fails += CHECK_SUPPORTS (xsave, XSAVE);
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fails += CHECK_SUPPORTS (xsavec, XSAVEC);
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fails += CHECK_SUPPORTS (xsaveopt, XSAVEOPT);
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- fails += CHECK_SUPPORTS (xsaves, XSAVES);
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+ fails += CHECK_CPU_SUPPORTS (xsaves, XSAVES);
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#endif
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printf ("%d differences between __builtin_cpu_supports and glibc code.\n",
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