mirror of git://sourceware.org/git/glibc.git
41f67ccbe9
This patch enables the option to influence hwcaps and stfle bits used by the s390 specific ifunc-resolvers. The currently x86-specific tunable glibc.cpu.hwcaps is also used on s390x to achieve the task. In addition the user can also set a CPU arch-level like z13 instead of single HWCAP and STFLE features. Note that the tunable only handles the features which are really used in the IFUNC-resolvers. All others are ignored as the values are only used inside glibc. Thus we can influence: - HWCAP_S390_VXRS (z13) - HWCAP_S390_VXRS_EXT (z14) - HWCAP_S390_VXRS_EXT2 (z15) - STFLE_MIE3 (z15) The influenced hwcap/stfle-bits are stored in the s390-specific cpu_features struct which also contains reserved fields for future usage. The ifunc-resolvers and users of stfle bits are adjusted to use the information from cpu_features struct. On 31bit, the ELF_MACHINE_IRELATIVE macro is now also defined. Otherwise the new ifunc-resolvers segfaults as they depend on the not yet processed_rtld_global_ro@GLIBC_PRIVATE relocation. |
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| .. | ||
| bits | ||
| fpu | ||
| s390-32 | ||
| s390-64 | ||
| sys | ||
| Implies | ||
| Makefile | ||
| Versions | ||
| configure | ||
| configure.ac | ||
| dl-cache.h | ||
| dl-procinfo.h | ||
| elision-conf.c | ||
| elision-conf.h | ||
| elision-lock.c | ||
| elision-timed.c | ||
| elision-trylock.c | ||
| elision-unlock.c | ||
| htm.h | ||
| ipc_priv.h | ||
| jmp-unwind.c | ||
| kernel-features.h | ||
| kernel_sigaction.h | ||
| ldconfig.h | ||
| ldd-rewrite.sed | ||
| libpthread-compat.c | ||
| localplt.data | ||
| longjmp_chk.c | ||
| mmap_call.h | ||
| nldbl-abi.h | ||
| readelflib.c | ||
| rt-sysdep.S | ||
| sa_len.c | ||
| sigcontextinfo.h | ||
| sysconf.c | ||
| sysdep.h | ||
| tst-ptrace-singleblock.c | ||
| ucontext_i.sym | ||
| xstatver.h | ||