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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2017-04-17 10:00:35 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2017-06-07 11:11:37 +0530
commitea9b0ecbf0e7b6e8281047624efbe1b2cbb6d487 (patch)
tree59984b1e6f5bc7e5f66a349e69359fd33090393a /scripts
parent44330b6d32904fdc8b6835a112e0ba0aee9f4ef3 (diff)
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tunables: Add LD_HWCAP_MASK to tunables
Add LD_HWCAP_MASK to tunables in preparation of it being removed from rtld.c. This allows us to read LD_HWCAP_MASK much earlier so that it can influence IFUNC resolution in aarch64. This patch does not actually do anything other than read the LD_HWCAP_MASK variable and add the tunables way to set the LD_HWCAP_MASK, i.e. via the glibc.tune.hwcap_mask tunable. In a follow-up patch, the _dl_hwcap_mask will be replaced with glibc.tune.hwcap_mask to complete the transition. * elf/dl-tunables.list: Add glibc.tune.hwcap_mask. * scripts/gen-tunables.awk: Include dl-procinfo.h. * manual/tunables.texi: Document glibc.tune.hwcap_mask.
Diffstat (limited to 'scripts')
-rw-r--r--scripts/gen-tunables.awk1
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/gen-tunables.awk b/scripts/gen-tunables.awk
index b10b00e..93e5aff 100644
--- a/scripts/gen-tunables.awk
+++ b/scripts/gen-tunables.awk
@@ -134,6 +134,7 @@ END {
print "# error \"Do not include this file directly.\""
print "# error \"Include tunables.h instead.\""
print "#endif"
+ print "#include <dl-procinfo.h>\n"
# Now, the enum names
print "\ntypedef enum"