glibc/sysdeps/arm/Makefile
Wilco Dijkstra ca3a382ea3 Enable unwind info in libc-start.c and backtrace.c
Add unwind info to __libc_start_main so that unwinding continues one
extra level to _start.  Similarly add unwind info to backtrace.
Given many targets require this, do this in a general way.

	* csu/Makefile: Add -funwind-tables to libc-start.c.
	* debug/Makefile: Add -funwind-tables to backtrace.c.
	* sysdeps/aarch64/Makefile: Remove CFLAGS-backtrace.c.
	* sysdeps/arm/Makefile: Likewise.
	* sysdeps/i386/Makefile: Likewise.
	* sysdeps/m68k/Makefile: Likewise.
	* sysdeps/mips/Makefile: Likewise.
	* sysdeps/nios2/Makefile: Likewise.
	* sysdeps/sh/Makefile: Likewise.
	* sysdeps/sparc/Makefile: Likewise.
2017-09-19 15:07:58 +01:00

71 lines
2.3 KiB
Makefile

gnulib-arch = $(elf-objpfx)libgcc-stubs.a
static-gnulib-arch = $(elf-objpfx)libgcc-stubs.a
# All supported build tools support TLS descriptors, but the OS may not.
ifndef have-arm-tls-desc
have-arm-tls-desc = yes
endif
ifeq ($(subdir),elf)
sysdep-dl-routines += tlsdesc dl-tlsdesc
sysdep_routines += aeabi_unwind_cpp_pr1 find_exidx
sysdep-rtld-routines += aeabi_unwind_cpp_pr1
shared-only-routines += aeabi_unwind_cpp_pr1
$(objpfx)libgcc-stubs.a: $(objpfx)aeabi_unwind_cpp_pr1.os
$(build-extra-lib)
lib-noranlib: $(objpfx)libgcc-stubs.a
ifeq ($(build-shared),yes)
ifeq ($(have-arm-tls-desc),yes)
tests += tst-armtlsdescloc tst-armtlsdescextnow tst-armtlsdescextlazy
modules-names += tst-armtlsdesclocmod
modules-names += tst-armtlsdescextlazymod tst-armtlsdescextnowmod
CPPFLAGS-tst-armtlsdescextnowmod.c += -Dstatic=
CPPFLAGS-tst-armtlsdescextlazymod.c += -Dstatic=
CFLAGS-tst-armtlsdesclocmod.c += -mtls-dialect=gnu2
CFLAGS-tst-armtlsdescextnowmod.c += -mtls-dialect=gnu2
CFLAGS-tst-armtlsdescextlazymod.c += -mtls-dialect=gnu2
LDFLAGS-tst-armtlsdescextnowmod.so += -Wl,-z,now
tst-armtlsdescloc-ENV = LD_BIND_NOW=1
tst-armtlsdescextnow-ENV = LD_BIND_NOW=1
tst-armtlsdescextlazy-ENV = LD_BIND_NOW=1
$(objpfx)tst-armtlsdescloc: $(objpfx)tst-armtlsdesclocmod.so
$(objpfx)tst-armtlsdescextnow: $(objpfx)tst-armtlsdescextnowmod.so
$(objpfx)tst-armtlsdescextlazy: $(objpfx)tst-armtlsdescextlazymod.so
endif
endif
endif
ifeq ($(subdir),csu)
# get offset to rtld_global._dl_hwcap
gen-as-const-headers += rtld-global-offsets.sym tlsdesc.sym
aeabi_constants = aeabi_lcsts aeabi_sighandlers aeabi_math
aeabi_routines = aeabi_assert aeabi_localeconv aeabi_errno_addr \
aeabi_mb_cur_max aeabi_atexit aeabi_memclr aeabi_memcpy \
aeabi_memmove aeabi_memset \
aeabi_read_tp libc-aeabi_read_tp
sysdep_routines += $(aeabi_constants) $(aeabi_routines)
static-only-routines += $(aeabi_constants) aeabi_read_tp
shared-only-routines += libc-aeabi_read_tp
sysdep_routines += arm-unwind-resume
shared-only-routines += arm-unwind-resume
endif
ifeq ($(subdir),gmon)
sysdep_routines += arm-mcount
endif
ifeq ($(subdir),rt)
librt-sysdep_routines += rt-aeabi_unwind_cpp_pr1 rt-arm-unwind-resume
librt-shared-only-routines += rt-aeabi_unwind_cpp_pr1 rt-arm-unwind-resume
endif
ifeq ($(subdir),nptl)
libpthread-sysdep_routines += pt-arm-unwind-resume
libpthread-shared-only-routines += pt-arm-unwind-resume
endif