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[mips] convert over =v to =r for the inline assembly.

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Later gcc and clang have deprecated =v (which maps to a specific temp
register) and instead we should just use =r to have the assembler
(hopefully!) save/restore things appropriately after choosing
a register.

Tested:

* AR9344 SoC, with userreg support
* AR9331 SoC, with no userreg support

Sponsored by:	Sponsored by: DARPA, AFRL (MIPS TLS user register work)
This commit is contained in:
Adrian Chadd 2016-08-14 19:04:37 +00:00
parent 4a2ea55b11
commit cb916ce754
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=304096
1 changed files with 2 additions and 2 deletions
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4
lib/libthr/arch/mips/include/pthread_md.h
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@ -84,7 +84,7 @@ _tcb_get(void)
".set\tmips64r2\n\t"
"rdhwr\t%0, $29\n\t"
".set\tpop"
: "=v" (_rv));
: "=r" (_rv));
/*
* XXXSS See 'git show c6be4f4d2d1b71c04de5d3bbb6933ce2dbcdb317'
@ -106,7 +106,7 @@ _tcb_get(void)
".set\tmips32r2\n\t"
"rdhwr\t%0, $29\n\t"
".set\tpop"
: "=v" (_rv));
: "=r" (_rv));
/*
* XXXSS See 'git show c6be4f4d2d1b71c04de5d3bbb6933ce2dbcdb317'