crti.asm: Change _bss_start to __bss_start.
2007-04-04 Chen Liqin <liqin@sunnorth.com.cn>
* config/score/crti.asm: Change _bss_start to __bss_start.
* config/score/score.h (CONDITIONAL_REGISTER_USAGE): Added.
(OUTGOING_REG_PARM_STACK_SPACE) update.
* config/score/score.opt: add options to make backend support
score5, score5u, score7 and score7d.
* config/score/score.md: Likewise.
* config/score/misc.md: Likewise.
* config/score/mac.md: Likewise.
* doc/invoke.texi: Likewise.
* doc/md.texi: update constraints define.
From-SVN: r123490