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pc64: set error code and trap fields in Ureg* on syscalls

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This commit is contained in:
aiju 2017-06-12 17:09:11 +00:00
parent 48c5da7a64
commit 1cfa405d0a
1 changed files with 3 additions and 1 deletions
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4
sys/src/9/pc64/l.s
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@ -722,8 +722,10 @@ TEXT syscallentry(SB), 1, $-4
PUSHQ R11 /* old flags */
PUSHQ $UESEL /* old code segment */
PUSHQ CX /* old ip */
PUSHQ $0 /* error code */
PUSHQ $64 /* trap number (VectorSYSCALL) */
SUBQ $(8 + 23*8-5*8), SP /* arg + sizeof(Ureg)-pushed */
SUBQ $(8 + 23*8-7*8), SP /* arg + sizeof(Ureg)-pushed */
MOVQ RMACH, (15*8)(SP) /* old r15 */
MOVQ RUSER, (14*8)(SP) /* old r14 */