glibc/sysdeps/powerpc/Makefile
Gabriel F. T. Gomes 9250e6610f powerpc: Fix build failures with current GCC
Since GCC commit 271500 (svn), also known as the following commit on the
git mirror:

commit 61edec870f9fdfb5df3fa4e40f28cbaede28a5b1
Author: amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Wed May 22 04:34:26 2019 +0000

    [RS6000] Don't pass -many to the assembler

glibc builds are failing when an assembly implementation does not
declare the correct '.machine' directive, or when no such directive is
declared at all.  For example, when a POWER6 instruction is used, but
'.machine power6' is not declared, the assembler will fail with an error
similar to the following:

    ../sysdeps/powerpc/powerpc64/power8/strcmp.S: Assembler messages:
     24 ../sysdeps/powerpc/powerpc64/power8/strcmp.S:55: Error: unrecognized opcode: `cmpb'

This patch adds '.machine powerN' directives where none existed, as well
as it updates '.machine power7' directives on POWER8 files, because the
minimum binutils version required to build glibc (binutils 2.25) now
provides this machine version.  It also adds '-many' to the assembler
command used to build tst-set_ppr.c.

Tested for powerpc, powerpc64, and powerpc64le, as well as with
build-many-glibcs.py for powerpc targets.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
2019-05-30 11:10:48 -03:00

60 lines
1.6 KiB
Makefile

ifeq ($(subdir),string)
CFLAGS-memcmp.c += -Wno-uninitialized
endif
ifeq ($(subdir),elf)
# extra shared linker files to link into dl-allobjs.so and libc
sysdep-dl-routines += dl-machine hwcapinfo
sysdep_routines += dl-machine hwcapinfo
# extra shared linker files to link only into dl-allobjs.so
sysdep-rtld-routines += dl-machine hwcapinfo
modules-names += mod-tlsopt-powerpc
mod-tlsopt-powerpc.so-no-z-defs = yes
tests += tst-tlsopt-powerpc
$(objpfx)tst-tlsopt-powerpc: $(objpfx)mod-tlsopt-powerpc.so
ifneq (no,$(multi-arch))
tests-static += tst-tlsifunc-static
tests-internal += tst-tlsifunc-static
ifeq (yes,$(build-shared))
tests-internal += tst-tlsifunc
endif # build-shared
endif # multi-arch
endif # subdir = elf
ifeq ($(subdir),setjmp)
ifeq (yes,$(build-shared))
sysdep_routines += novmx-longjmp novmx-sigjmp
endif
endif
ifeq ($(subdir),csu)
# get offset to rtld_global._dl_hwcap and rtld_global._dl_hwcap2
gen-as-const-headers += rtld-global-offsets.sym
# get offset to __locale_struct.__ctype_tolower
gen-as-const-headers += locale-defines.sym
endif
ifeq ($(subdir),nptl)
tests-internal += test-get_hwcap test-get_hwcap-static
tests-static += test-get_hwcap-static
endif
ifeq ($(subdir),misc)
sysdep_headers += sys/platform/ppc.h
tests += test-gettimebase
tests += tst-set_ppr
# This test is expected to run and exit with EXIT_UNSUPPORTED on
# processors that do not implement the Power ISA 2.06 or greater.
# But the test makes use of instructions from Power ISA 2.06 and 2.07.
CFLAGS-tst-set_ppr.c += -Wa,-many
endif
ifeq ($(subdir),wcsmbs)
CFLAGS-wcscpy.c += -DUNROLL_NTIMES=8
CFLAGS-wcschr.c += -DUNROLL_NTIMES=8
CFLAGS-wcsrchr.c += -DUNROLL_NTIMES=8
endif