mirror of git://sourceware.org/git/glibc.git
ecce11aa07
GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA levels: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250 and -mneeded to emit GNU_PROPERTY_X86_ISA_1_NEEDED property with GNU_PROPERTY_X86_ISA_1_V[234] marker: https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13 Binutils support for GNU_PROPERTY_X86_ISA_1_V[234] marker were added by commit b0ab06937385e0ae25cebf1991787d64f439bf12 Author: H.J. Lu <hjl.tools@gmail.com> Date: Fri Oct 30 06:49:57 2020 -0700 x86: Support GNU_PROPERTY_X86_ISA_1_BASELINE marker and commit 32930e4edbc06bc6f10c435dbcc63131715df678 Author: H.J. Lu <hjl.tools@gmail.com> Date: Fri Oct 9 05:05:57 2020 -0700 x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker GNU_PROPERTY_X86_ISA_1_NEEDED property in x86 ELF binaries indicate the micro-architecture ISA level required to execute the binary. The marker must be added by programmers explicitly in one of 3 ways: 1. Pass -mneeded to GCC. 2. Add the marker in the linker inputs as this patch does. 3. Pass -z x86-64-v[234] to the linker. Add GNU_PROPERTY_X86_ISA_1_BASELINE and GNU_PROPERTY_X86_ISA_1_V[234] marker support to ld.so if binutils 2.32 or newer is used to build glibc: 1. Add GNU_PROPERTY_X86_ISA_1_BASELINE and GNU_PROPERTY_X86_ISA_1_V[234] markers to elf.h. 2. Add GNU_PROPERTY_X86_ISA_1_BASELINE and GNU_PROPERTY_X86_ISA_1_V[234] marker to abi-note.o based on the ISA level used to compile abi-note.o, assuming that the same ISA level is used to compile the whole glibc. 3. Add isa_1 to cpu_features to record the supported x86 ISA level. 4. Rename _dl_process_cet_property_note to _dl_process_property_note and add GNU_PROPERTY_X86_ISA_1_V[234] marker detection. 5. Update _rtld_main_check and _dl_open_check to check loaded objects with the incompatible ISA level. 6. Add a testcase to verify that dlopen an x86-64-v4 shared object fails on lesser platforms. 7. Use <get-isa-level.h> in dl-hwcaps-subdirs.c and tst-glibc-hwcaps.c. Tested under i686, x32 and x86-64 modes on x86-64-v2, x86-64-v3 and x86-64-v4 machines. Marked elf/tst-isa-level-1 with x86-64-v4, ran it on x86-64-v3 machine and got: [hjl@gnu-cfl-2 build-x86_64-linux]$ ./elf/tst-isa-level-1 ./elf/tst-isa-level-1: CPU ISA level is lower than required [hjl@gnu-cfl-2 build-x86_64-linux]$ |
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| .. | ||
| bits | ||
| fpu | ||
| include | ||
| nptl | ||
| sys/platform | ||
| Makeconfig | ||
| Makefile | ||
| Versions | ||
| __longjmp_cancel.S | ||
| abi-note.c | ||
| atomic-machine.h | ||
| cacheinfo.c | ||
| cacheinfo.h | ||
| cet-control.h | ||
| check-cet.awk | ||
| configure | ||
| configure.ac | ||
| cpu-features-offsets.sym | ||
| cpu-features.c | ||
| cpu-tunables.c | ||
| dl-cacheinfo.h | ||
| dl-cet.c | ||
| dl-get-cpu-features.c | ||
| dl-hwcap.h | ||
| dl-lookupcfg.h | ||
| dl-procinfo.c | ||
| dl-procinfo.h | ||
| dl-procruntime.c | ||
| dl-prop.h | ||
| dl-tunables.list | ||
| elf-initfini.h | ||
| elide.h | ||
| float128-abi.h | ||
| fpu_control.h | ||
| get-isa-level.h | ||
| hp-timing.h | ||
| init-arch.h | ||
| isa-level.c | ||
| jmp_buf-ssp.sym | ||
| ldbl2mpn.c | ||
| ldsodefs.h | ||
| libc-start.c | ||
| libc-start.h | ||
| link_map.h | ||
| linkmap.h | ||
| longjmp.c | ||
| string_private.h | ||
| sysdep.h | ||
| tininess.h | ||
| tst-cet-legacy-1.c | ||
| tst-cet-legacy-1a.c | ||
| tst-cet-legacy-2.c | ||
| tst-cet-legacy-2a.c | ||
| tst-cet-legacy-3.c | ||
| tst-cet-legacy-4.c | ||
| tst-cet-legacy-4a.c | ||
| tst-cet-legacy-4b.c | ||
| tst-cet-legacy-4c.c | ||
| tst-cet-legacy-5.c | ||
| tst-cet-legacy-5a.c | ||
| tst-cet-legacy-5b.c | ||
| tst-cet-legacy-6.c | ||
| tst-cet-legacy-6a.c | ||
| tst-cet-legacy-6b.c | ||
| tst-cet-legacy-7.c | ||
| tst-cet-legacy-8.c | ||
| tst-cet-legacy-mod-1.c | ||
| tst-cet-legacy-mod-2.c | ||
| tst-cet-legacy-mod-4.c | ||
| tst-cet-legacy-mod-5.c | ||
| tst-cet-legacy-mod-5a.c | ||
| tst-cet-legacy-mod-5b.c | ||
| tst-cet-legacy-mod-5c.c | ||
| tst-cet-legacy-mod-6.c | ||
| tst-cet-legacy-mod-6a.c | ||
| tst-cet-legacy-mod-6b.c | ||
| tst-cet-legacy-mod-6c.c | ||
| tst-cet-legacy-mod-6d.c | ||
| tst-cpu-features-cpuinfo.c | ||
| tst-cpu-features-supports.c | ||
| tst-get-cpu-features-static.c | ||
| tst-get-cpu-features.c | ||
| tst-isa-level-1.c | ||
| tst-isa-level-mod-1-baseline.c | ||
| tst-isa-level-mod-1-v2.c | ||
| tst-isa-level-mod-1-v3.c | ||
| tst-isa-level-mod-1-v4.c | ||
| tst-isa-level-mod-1.c | ||
| tst-ldbl-nonnormal-printf.c | ||