Messages in this thread | | | Date | Sun, 15 Oct 2006 23:33:41 -0700 | From | Andrew Morton <> | Subject | Re: [build bug] x86_64, -git: Error: unknown pseudo-op: `.cfi_signal_frame' |
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On Mon, 16 Oct 2006 08:10:37 +0200 Ingo Molnar <mingo@elte.hu> wrote:
> > using latest -git i'm getting this build bug on gcc 3.4: > > arch/x86_64/kernel/entry.S: Assembler messages: > arch/x86_64/kernel/entry.S:157: Error: unknown pseudo-op: `.cfi_signal_frame' > arch/x86_64/kernel/entry.S:215: Error: unknown pseudo-op: `.cfi_signal_frame' > arch/x86_64/kernel/entry.S:333: Error: unknown pseudo-op: `.cfi_signal_frame' > arch/x86_64/kernel/entry.S:548: Error: unknown pseudo-op: `.cfi_signal_frame' > > gcc version 3.4.0 20040129 (Red Hat Linux 3.4.0-0.3) > > using gcc 4.1 it doesnt happen > > gcc version 4.1.1 20060525 (Red Hat 4.1.1-1) > > this is caused by the following commit: > > commit adf1423698f00d00b267f7dca8231340ce7d65ef > Author: Jan Beulich <jbeulich@novell.com> > Date: Tue Sep 26 10:52:41 2006 +0200 > > reverting that patch solves the build problem and the resulting kernel > builds and boots fine. >
That patch has obvious copy-n-paste errors:
i386:
cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+# is .cfi_signal_frame supported too? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
So that won't work.
x86_64 appears to get it right:
cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
+# is .cfi_signal_frame supported too? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
Later,
+#ifdef CONFIG_AS_CFI_SIGNAL_FRAME +#define CFI_SIGNAL_FRAME .cfi_signal_frame +#else +#define CFI_SIGNAL_FRAME +#endif
but it's obviously not working. Wanna debug it a bit? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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