glibc/sysdeps/aarch64/Makefile

long-double-fcts = yes

ifeq ($(subdir),elf)
sysdep-dl-routines += tlsdesc dl-tlsdesc
gen-as-const-headers += dl-link.sym
endif

ifeq ($(subdir),csu)
gen-as-const-headers += tlsdesc.sym
endif

ifeq ($(subdir),gmon)
CFLAGS-mcount.c += -mgeneral-regs-only
endif
AArch64 Port 2012-11-09 18:53:51 +01:00			`long-double-fcts = yes`

			`ifeq ($(subdir),elf)`
			`sysdep-dl-routines += tlsdesc dl-tlsdesc`
			`gen-as-const-headers += dl-link.sym`
			`endif`

			`ifeq ($(subdir),csu)`
			`gen-as-const-headers += tlsdesc.sym`
			`endif`
[AArch64] Fix libc internal asm profiling code When glibc is built with --enable-profile, the ENTRY of asm functions includes CALL_MCOUNT for profiling. (matters for binaries static linked against libc_p.a.) CALL_MCOUNT did not save/restore argument registers around the _mcount call so it clobbered them. (it is enough to only save/restore the arguments passed to a given asm function, but that would be too many asm changes so it is simpler to always save all argument registers in this macro.) float args are not saved: mcount does not clobber the float regs and currently no asm function takes float arguments anyway. [BZ #18707] * sysdeps/aarch64/Makefile (CFLAGS-mcount.c): Add -mgeneral-regs-only. * sysdeps/aarch64/sysdep.h (CALL_MCOUNT): Save argument registers. 2016-07-11 10:46:08 +02:00
			`ifeq ($(subdir),gmon)`
			`CFLAGS-mcount.c += -mgeneral-regs-only`
			`endif`