ddbe3eec59
This quietens warnings and actually fixes a bug. The unwind tables would come out wrong without -32, causing pthread cancellation during them to crash in the gcc runtime. The problem seems to only happen with newer binutils (it doesn't happen with 2.16.91.0.2 but happens wit 2.16.91.0.5) Thanks to David Altobelli <david.altobelli@hp.com> and Brian Baker <Brian.B@hp.com> for test case and initial analysis. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
32 lines
975 B
Makefile
32 lines
975 B
Makefile
#
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# Makefile for the ia32 kernel emulation subsystem.
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#
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obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
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ia32_binfmt.o fpu32.o ptrace32.o syscall32.o syscall32_syscall.o \
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mmap32.o
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sysv-$(CONFIG_SYSVIPC) := ipc32.o
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obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
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obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
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$(obj)/syscall32_syscall.o: \
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$(foreach F,sysenter syscall,$(obj)/vsyscall-$F.so)
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# Teach kbuild about targets
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targets := $(foreach F,sysenter syscall,vsyscall-$F.o vsyscall-$F.so)
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# The DSO images are built using a special linker script
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quiet_cmd_syscall = SYSCALL $@
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cmd_syscall = $(CC) -m32 -nostdlib -shared -s \
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-Wl,-soname=linux-gate.so.1 -o $@ \
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-Wl,-T,$(filter-out FORCE,$^)
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$(obj)/vsyscall-sysenter.so $(obj)/vsyscall-syscall.so: \
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$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
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$(call if_changed,syscall)
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AFLAGS_vsyscall-sysenter.o = -m32 -Wa,-32
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AFLAGS_vsyscall-syscall.o = -m32 -Wa,-32
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