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SUSE:SLE-15:Update
glibc.13450
s390-elision-enable-envvar.patch
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File s390-elision-enable-envvar.patch of Package glibc.13450
Index: glibc-2.25/sysdeps/unix/sysv/linux/s390/elision-conf.c =================================================================== --- glibc-2.25.orig/sysdeps/unix/sysv/linux/s390/elision-conf.c +++ glibc-2.25/sysdeps/unix/sysv/linux/s390/elision-conf.c @@ -21,6 +21,7 @@ #include <elision-conf.h> #include <unistd.h> #include <dl-procinfo.h> +#include <string.h> /* Reasonable initial tuning values, may be revised in the future. This is a conservative initial value. */ @@ -64,7 +65,17 @@ elision_init (int argc __attribute__ ((u When false elision is never attempted. */ int elision_available = (GLRO (dl_hwcap) & HWCAP_S390_TE) ? 1 : 0; - __pthread_force_elision = __libc_enable_secure ? 0 : elision_available; + /* Scan the environment and conditionally enable TLE. */ + if (elision_available != 0 && __libc_enable_secure == 0) + { + for ( ; *environ != NULL; environ++) + if (**environ == 'G' + && strcmp (*environ, "GLIBC_ELISION_ENABLE=yes") == 0) + { + __pthread_force_elision = elision_available; + break; + } + } } #ifdef SHARED
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