Commit 0e90f49b authored Sep 29, 2006 by Franck Bui-Huu Committed by Ralf Baechle Oct 03, 2006

[MIPS] Let gcc align 'struct pt_regs' on 8 bytes boundary



The stack pointer in MIPS/gcc should always 8 bytes aligned on
entry to any routines. Therefore pt_regs structure must be
aligned to 8-byte boundary too.

Instead of creating dummy fields to achieve this alignment, this
patch let gcc doing it. Therefore 'smtc_pad' field can be safely
removed.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent 8ccb3dcd

include/asm-mips/ptrace.h

+1 −2

Original line number	Diff line number	Diff line
		@@ -44,9 +44,8 @@ struct pt_regs {
		unsigned long cp0_epc;
		#ifdef CONFIG_MIPS_MT_SMTC
		unsigned long cp0_tcstatus;
		unsigned long smtc_pad;
		#endif /* CONFIG_MIPS_MT_SMTC */
		};
		} __attribute__ ((aligned (8)));

		/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
		#define PTRACE_GETREGS 12