commit 2376944b9e5c0364b9fb473e4d8dabca31b57167 Author: Stefan Liebler Date: Wed Apr 13 14:36:09 2022 +0200 S390: Add new s390 platform z16. The new IBM z16 is added to platform string array. The macro _DL_PLATFORMS_COUNT is incremented. _dl_hwcaps_subdir is extended by "z16" if HWCAP_S390_VXRS_PDE2 is set. HWCAP_S390_NNPA is not tested in _dl_hwcaps_subdirs_active as those instructions may be replaced or removed in future. tst-glibc-hwcaps.c is extended in order to test z16 via new marker5. A fatal glibc error is dumped if glibc was build with architecture level set for z16, but run on an older machine. (See dl-hwcap-check.h) Reworked for RHEL 8.7.0 diff -Nrup a/elf/Makefile b/elf/Makefile --- a/elf/Makefile 2022-05-16 21:48:11.267916411 -0400 +++ b/elf/Makefile 2022-05-16 21:48:56.106095151 -0400 @@ -347,7 +347,8 @@ modules-names = testobj1 testobj2 testob libmarkermod2-1 libmarkermod2-2 \ libmarkermod3-1 libmarkermod3-2 libmarkermod3-3 \ libmarkermod4-1 libmarkermod4-2 libmarkermod4-3 libmarkermod4-4 \ - tst-tls20mod-bad tst-tls21mod \ + libmarkermod5-1 libmarkermod5-2 libmarkermod5-3 libmarkermod5-4 \ + libmarkermod5-5 tst-tls20mod-bad tst-tls21mod \ # Most modules build with _ISOMAC defined, but those filtered out # depend on internal headers. @@ -1782,6 +1783,7 @@ LDFLAGS-libmarkermod1-1.so += -Wl,-sonam LDFLAGS-libmarkermod2-1.so += -Wl,-soname,libmarkermod2.so LDFLAGS-libmarkermod3-1.so += -Wl,-soname,libmarkermod3.so LDFLAGS-libmarkermod4-1.so += -Wl,-soname,libmarkermod4.so +LDFLAGS-libmarkermod5-1.so += -Wl,-soname,libmarkermod5.so $(objpfx)libmarkermod%.os : markermodMARKER-VALUE.c $(compile-command.c) \ -DMARKER=marker$(firstword $(subst -, ,$*)) \ @@ -1794,6 +1796,8 @@ $(objpfx)libmarkermod3.so: $(objpfx)libm cp $< $@ $(objpfx)libmarkermod4.so: $(objpfx)libmarkermod4-1.so cp $< $@ +$(objpfx)libmarkermod5.so: $(objpfx)libmarkermod5-1.so + cp $< $@ # tst-glibc-hwcaps-prepend checks that --glibc-hwcaps-prepend is # preferred over auto-detected subdirectories. diff -Nrup a/elf/tst-glibc-hwcaps-cache.script b/elf/tst-glibc-hwcaps-cache.script --- a/elf/tst-glibc-hwcaps-cache.script 2022-05-16 21:48:11.053915558 -0400 +++ b/elf/tst-glibc-hwcaps-cache.script 2022-05-16 21:48:56.107095155 -0400 @@ -4,6 +4,7 @@ cp $B/elf/libmarkermod2-1.so $L/libmarkermod2.so cp $B/elf/libmarkermod3-1.so $L/libmarkermod3.so cp $B/elf/libmarkermod4-1.so $L/libmarkermod4.so +cp $B/elf/libmarkermod5-1.so $L/libmarkermod5.so mkdirp 0770 $L/glibc-hwcaps/power9 cp $B/elf/libmarkermod2-2.so $L/glibc-hwcaps/power9/libmarkermod2.so @@ -20,6 +21,11 @@ mkdirp 0770 $L/glibc-hwcaps/z15 cp $B/elf/libmarkermod4-2.so $L/glibc-hwcaps/z13/libmarkermod4.so cp $B/elf/libmarkermod4-3.so $L/glibc-hwcaps/z14/libmarkermod4.so cp $B/elf/libmarkermod4-4.so $L/glibc-hwcaps/z15/libmarkermod4.so +mkdirp 0770 $L/glibc-hwcaps/z16 +cp $B/elf/libmarkermod5-2.so $L/glibc-hwcaps/z13/libmarkermod5.so +cp $B/elf/libmarkermod5-3.so $L/glibc-hwcaps/z14/libmarkermod5.so +cp $B/elf/libmarkermod5-4.so $L/glibc-hwcaps/z15/libmarkermod5.so +cp $B/elf/libmarkermod5-5.so $L/glibc-hwcaps/z16/libmarkermod5.so mkdirp 0770 $L/glibc-hwcaps/x86-64-v2 cp $B/elf/libmarkermod2-2.so $L/glibc-hwcaps/x86-64-v2/libmarkermod2.so diff -Nrup a/sysdeps/s390/dl-procinfo.c b/sysdeps/s390/dl-procinfo.c --- a/sysdeps/s390/dl-procinfo.c 2022-05-16 21:48:11.250916343 -0400 +++ b/sysdeps/s390/dl-procinfo.c 2022-05-16 21:48:56.107095155 -0400 @@ -64,11 +64,12 @@ PROCINFO_CLASS const char _dl_s390_cap_f #if !defined PROCINFO_DECL && defined SHARED ._dl_s390_platforms #else -PROCINFO_CLASS const char _dl_s390_platforms[10][7] +PROCINFO_CLASS const char _dl_s390_platforms[11][7] #endif #ifndef PROCINFO_DECL = { - "g5", "z900", "z990", "z9-109", "z10", "z196", "zEC12", "z13", "z14", "z15" + "g5", "z900", "z990", "z9-109", "z10", "z196", "zEC12", "z13", "z14", "z15", + "z16" } #endif #if !defined SHARED || defined PROCINFO_DECL diff -Nrup a/sysdeps/s390/dl-procinfo.h b/sysdeps/s390/dl-procinfo.h --- a/sysdeps/s390/dl-procinfo.h 2022-05-16 21:48:11.250916343 -0400 +++ b/sysdeps/s390/dl-procinfo.h 2022-05-16 21:48:56.107095155 -0400 @@ -23,7 +23,7 @@ #define _DL_HWCAP_COUNT 23 -#define _DL_PLATFORMS_COUNT 10 +#define _DL_PLATFORMS_COUNT 11 /* The kernel provides up to 32 capability bits with elf_hwcap. */ #define _DL_FIRST_PLATFORM 32 diff -Nrup a/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c b/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c --- a/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c 2022-05-16 21:48:11.053915558 -0400 +++ b/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c 2022-05-16 21:58:02.840301911 -0400 @@ -19,8 +19,8 @@ #include #include -const char _dl_hwcaps_subdirs[] = "z15:z14:z13"; -enum { subdirs_count = 3 }; /* Number of components in _dl_hwcaps_subdirs. */ +const char _dl_hwcaps_subdirs[] = "z16:z15:z14:z13"; +enum { subdirs_count = 4 }; /* Number of components in _dl_hwcaps_subdirs. */ uint32_t _dl_hwcaps_subdirs_active (void) @@ -50,5 +50,12 @@ _dl_hwcaps_subdirs_active (void) return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); ++active; + /* z16. + Note: We do not list HWCAP_S390_NNPA here as, according to the Principles of + Operation, those instructions may be replaced or removed in future. */ + if (!(GLRO (dl_hwcap) & HWCAP_S390_VXRS_PDE2)) + return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); + ++active; + return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); } diff -Nrup a/sysdeps/s390/s390-64/Makefile b/sysdeps/s390/s390-64/Makefile --- a/sysdeps/s390/s390-64/Makefile 2022-05-16 21:48:11.053915558 -0400 +++ b/sysdeps/s390/s390-64/Makefile 2022-05-16 21:54:08.832355745 -0400 @@ -7,8 +7,11 @@ CFLAGS-rtld.c += -Wno-uninitialized -Wno CFLAGS-dl-load.c += -Wno-unused CFLAGS-dl-reloc.c += -Wno-unused -$(objpfx)tst-glibc-hwcaps: $(objpfx)libmarkermod2-1.so \ - $(objpfx)libmarkermod3-1.so $(objpfx)libmarkermod4-1.so +$(objpfx)tst-glibc-hwcaps: \ + $(objpfx)libmarkermod2-1.so \ + $(objpfx)libmarkermod3-1.so \ + $(objpfx)libmarkermod4-1.so \ + $(objpfx)libmarkermod5-1.so $(objpfx)tst-glibc-hwcaps.out: \ $(objpfx)libmarkermod2.so \ $(objpfx)glibc-hwcaps/z13/libmarkermod2.so \ @@ -19,6 +22,11 @@ $(objpfx)tst-glibc-hwcaps.out: \ $(objpfx)glibc-hwcaps/z13/libmarkermod4.so \ $(objpfx)glibc-hwcaps/z14/libmarkermod4.so \ $(objpfx)glibc-hwcaps/z15/libmarkermod4.so \ + $(objpfx)libmarkermod5.so \ + $(objpfx)glibc-hwcaps/z13/libmarkermod5.so \ + $(objpfx)glibc-hwcaps/z14/libmarkermod5.so \ + $(objpfx)glibc-hwcaps/z15/libmarkermod5.so \ + $(objpfx)glibc-hwcaps/z16/libmarkermod5.so $(objpfx)glibc-hwcaps/z13/libmarkermod2.so: $(objpfx)libmarkermod2-2.so $(make-target-directory) @@ -38,6 +46,18 @@ $(objpfx)glibc-hwcaps/z14/libmarkermod4. $(objpfx)glibc-hwcaps/z15/libmarkermod4.so: $(objpfx)libmarkermod4-4.so $(make-target-directory) cp $< $@ +$(objpfx)glibc-hwcaps/z13/libmarkermod5.so: $(objpfx)libmarkermod5-2.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z14/libmarkermod5.so: $(objpfx)libmarkermod5-3.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z15/libmarkermod5.so: $(objpfx)libmarkermod5-4.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z16/libmarkermod5.so: $(objpfx)libmarkermod5-5.so + $(make-target-directory) + cp $< $@ ifeq (no,$(build-hardcoded-path-in-tests)) # This is an ld.so.cache test, and RPATH/RUNPATH in the executable diff -Nrup a/sysdeps/s390/s390-64/tst-glibc-hwcaps.c b/sysdeps/s390/s390-64/tst-glibc-hwcaps.c --- a/sysdeps/s390/s390-64/tst-glibc-hwcaps.c 2022-05-16 21:48:11.053915558 -0400 +++ b/sysdeps/s390/s390-64/tst-glibc-hwcaps.c 2022-05-16 21:48:56.107095155 -0400 @@ -25,6 +25,7 @@ extern int marker2 (void); extern int marker3 (void); extern int marker4 (void); +extern int marker5 (void); /* Return the arch level, 10 for the baseline libmarkermod*.so's. */ static int @@ -63,9 +64,13 @@ compute_level (void) return 12; if (strcmp (platform, "z15") == 0) return 13; + if (strcmp (platform, "z16") == 0) + return 14; printf ("warning: unrecognized AT_PLATFORM value: %s\n", platform); /* Assume that the new platform supports z15. */ return 13; + /* Assume that the new platform supports z16. */ + return 14; } static int @@ -76,6 +81,7 @@ do_test (void) TEST_COMPARE (marker2 (), MIN (level - 9, 2)); TEST_COMPARE (marker3 (), MIN (level - 9, 3)); TEST_COMPARE (marker4 (), MIN (level - 9, 4)); + TEST_COMPARE (marker5 (), MIN (level - 9, 5)); return 0; }