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[PATCH] m32r: fix and update for gcc-4.0

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Fix and update for gcc-4.0.

- arch/m32r/kernel/signal.c:
  Change type of the 8th parameter of sys_rt_sigsuspend() from
  'struct pt_regs' to 'struct pt_regs *'.
  This functions make use of the 'regs' parameter to return status value,
  but gcc-4.0 optimizes and removes it as a dead code.
  Functions, sys_sigaltstack() and sys_rt_sigreturn(), have also modified.

- arch/m32r/lib/usercopy.c, include/asm-m32r/uaccess.h:
  Add early-clobber constraints('&') to output values of asm statements;
  these constraints seems to be required for gcc-4.0 register assignment.

Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hirokazu Takata 2006-02-24 13:03:51 -08:00 • committed by Linus Torvalds
commit 6ced13cdca
3 changed files with 16 additions and 20 deletions
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8
include/asm-m32r/uaccess.h
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@ -328,7 +328,7 @@ extern void __put_user_bad(void);
" .long 1b,4b\n" \
" .long 2b,4b\n" \
".previous" \
: "=r"(err) \
: "=&r"(err) \
: "r"(x), "r"(addr), "i"(-EFAULT), "0"(err) \
: "r14", "memory")
@ -353,7 +353,7 @@ extern void __put_user_bad(void);
" .long 1b,4b\n" \
" .long 2b,4b\n" \
".previous" \
: "=r"(err) \
: "=&r"(err) \
: "r"(x), "r"(addr), "i"(-EFAULT), "0"(err) \
: "r14", "memory")
#else
@ -398,7 +398,7 @@ struct __large_struct { unsigned long buf[100]; };
" .balign 4\n" \
" .long 1b,3b\n" \
".previous" \
: "=r"(err) \
: "=&r"(err) \
: "r"(x), "r"(addr), "i"(-EFAULT), "0"(err) \
: "r14", "memory")
@ -442,7 +442,7 @@ do { \
" .balign 4\n" \
" .long 1b,3b\n" \
".previous" \
: "=r"(err), "=&r"(x) \
: "=&r"(err), "=&r"(x) \
: "r"(addr), "i"(-EFAULT), "0"(err) \
: "r14", "memory")