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

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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>
This commit is contained in:
Franck Bui-Huu 2006-09-29 11:08:59 +02:00 committed by Ralf Baechle
parent 8ccb3dcd1f
commit 0e90f49b11
1 changed files with 1 additions and 2 deletions
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3
include/asm-mips/ptrace.h
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@ -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