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| author | Joel Sing <joel@sing.id.au> | 2021-01-31 04:21:47 +1100 |
|---|---|---|
| committer | Joel Sing <joel@sing.id.au> | 2021-05-09 17:05:25 +0000 |
| commit | 8ec8f6aa87569a6bc567d4a7039fc22a473b37ec (patch) | |
| tree | a1fe1f8e3b60aa55f98b0eb4be5ff5bf0253f4a1 /src/runtime/asm_arm.s | |
| parent | 5203357ebacf9f41ca5e194d953c164049172e96 (diff) | |
| download | go-8ec8f6aa87569a6bc567d4a7039fc22a473b37ec.tar.xz | |
runtime: switch openbsd/arm to pthreads
This switches openbsd/arm to thread creation via pthreads, rather than doing
direct system calls.
Update #36435
Change-Id: Ia8749e3723a9967905c33b6d93dfd9be797a486c
Reviewed-on: https://go-review.googlesource.com/c/go/+/315790
Trust: Joel Sing <joel@sing.id.au>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/runtime/asm_arm.s')
| -rw-r--r-- | src/runtime/asm_arm.s | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/runtime/asm_arm.s b/src/runtime/asm_arm.s index e779fc8f84..6d3573d68f 100644 --- a/src/runtime/asm_arm.s +++ b/src/runtime/asm_arm.s @@ -142,6 +142,11 @@ TEXT runtime·rt0_go(SB),NOSPLIT|NOFRAME|TOPFRAME,$0 BL runtime·emptyfunc(SB) // fault if stack check is wrong +#ifdef GOOS_openbsd + // Save g to TLS so that it is available from signal trampoline. + BL runtime·save_g(SB) +#endif + BL runtime·_initcgo(SB) // will clobber R0-R3 // update stackguard after _cgo_init @@ -633,9 +638,13 @@ TEXT ·cgocallback(SB),NOSPLIT,$12-12 NO_LOCAL_POINTERS // Load m and g from thread-local storage. +#ifdef GOOS_openbsd + BL runtime·load_g(SB) +#else MOVB runtime·iscgo(SB), R0 CMP $0, R0 BL.NE runtime·load_g(SB) +#endif // If g is nil, Go did not create the current thread. // Call needm to obtain one for temporary use. @@ -745,6 +754,9 @@ TEXT setg<>(SB),NOSPLIT|NOFRAME,$0-0 #ifdef GOOS_windows B runtime·save_g(SB) #else +#ifdef GOOS_openbsd + B runtime·save_g(SB) +#else MOVB runtime·iscgo(SB), R0 CMP $0, R0 B.EQ 2(PC) @@ -753,6 +765,7 @@ TEXT setg<>(SB),NOSPLIT|NOFRAME,$0-0 MOVW g, R0 RET #endif +#endif TEXT runtime·emptyfunc(SB),0,$0-0 RET |