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runtime: use register ABI for race detector functions

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runtime.raceread/racewrite/racewriterange are functions that are
called from compiler instrumented code, follwoing ABIInternal.
They are assembly functions defined as ABIInternal in the runtime,
in order to avoid wrappers because they need to get the caller's
PC. This CL makes them to use the actual internal ABI.

Change-Id: Id91d73cf257f7b11a858958d85c38c4aa904d9c3
Reviewed-on: https://go-review.googlesource.com/c/go/+/307812
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Cherry Zhang 2021-04-05 20:26:11 -04:00
parent 7da8490cbb
commit 0a510478b0
1 changed files with 13 additions and 0 deletions
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13
src/runtime/race_amd64.s
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@ -44,7 +44,11 @@
// Defined as ABIInternal so as to avoid introducing a wrapper,
// which would render runtime.getcallerpc ineffective.
TEXT runtime·raceread<ABIInternal>(SB), NOSPLIT, $0-8
#ifdef GOEXPERIMENT_REGABI_ARGS
MOVQ AX, RARG1
#else
MOVQ addr+0(FP), RARG1
#endif
MOVQ (SP), RARG2
// void __tsan_read(ThreadState *thr, void *addr, void *pc);
MOVQ $__tsan_read(SB), AX
@ -70,7 +74,11 @@ TEXT runtime·racereadpc(SB), NOSPLIT, $0-24
// Defined as ABIInternal so as to avoid introducing a wrapper,
// which would render runtime.getcallerpc ineffective.
TEXT runtime·racewrite<ABIInternal>(SB), NOSPLIT, $0-8
#ifdef GOEXPERIMENT_REGABI_ARGS
MOVQ AX, RARG1
#else
MOVQ addr+0(FP), RARG1
#endif
MOVQ (SP), RARG2
// void __tsan_write(ThreadState *thr, void *addr, void *pc);
MOVQ $__tsan_write(SB), AX
@ -121,8 +129,13 @@ TEXT runtime·racereadrangepc1(SB), NOSPLIT, $0-24
// Defined as ABIInternal so as to avoid introducing a wrapper,
// which would render runtime.getcallerpc ineffective.
TEXT runtime·racewriterange<ABIInternal>(SB), NOSPLIT, $0-16
#ifdef GOEXPERIMENT_REGABI_ARGS
MOVQ AX, RARG1
MOVQ BX, RARG2
#else
MOVQ addr+0(FP), RARG1
MOVQ size+8(FP), RARG2
#endif
MOVQ (SP), RARG3
// void __tsan_write_range(ThreadState *thr, void *addr, uintptr size, void *pc);
MOVQ $__tsan_write_range(SB), AX