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runtime: remove redundant empty function call from Breakpoint on arm

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CL 18964 included an extra patch (sorry, my first experience of
git-codereview) which defined the conventional breakpoint instruction
used by Plan 9 on arm, but also introduced a benign but unneeded
call to runtime.emptyfunc.  This CL removes the redundant call again.

This completes the series of CLs which add support for Plan 9 on arm.

Change-Id: Id293cfd40557c9d79b4b6cb164ed7ed49295b178
Reviewed-on: https://go-review.googlesource.com/19010
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Richard Miller 2016-01-27 19:10:11 +00:00 committed by Brad Fitzpatrick
parent 01ca4da0ef
commit d326a96419
1 changed files with 0 additions and 1 deletions
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src/runtime/asm_arm.s
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@ -81,7 +81,6 @@ DATA runtime·mainPC+0(SB)/4,$runtime·main(SB)
GLOBL runtime·mainPC(SB),RODATA,$4
TEXT runtime·breakpoint(SB),NOSPLIT,$0-0
BL runtime·emptyfunc(SB) // force R14 save for traceback
// gdb won't skip this breakpoint instruction automatically,
// so you must manually "set $pc+=4" to skip it and continue.
#ifdef GOOS_nacl