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| author | Srdjan Petrovic <spetrovic@google.com> | 2015-04-17 17:27:07 -0700 |
|---|---|---|
| committer | David Crawshaw <crawshaw@golang.org> | 2015-04-22 16:28:57 +0000 |
| commit | ca9128f18fe75878ba2d5e0df09ae755c085f72a (patch) | |
| tree | 14dc3f65d05c3425c251282b91b1fe1be2079895 /src/runtime/sys_linux_arm64.s | |
| parent | 3f91a017f8f67cb9a744cf5d0a8b5db34a95808d (diff) | |
| download | go-ca9128f18fe75878ba2d5e0df09ae755c085f72a.tar.xz | |
runtime: merge clone0 and clone
We initially added clone0 to handle the case when G or M don't exist, but
it turns out that we could have just modified clone. (It also helps that
the function we're invoking in clone0 no longer needs arguments.)
As a side-effect, newosproc0 is now supported on all linux archs.
Change-Id: Ie603af75d8f164310fc16446052d83743961f3ca
Reviewed-on: https://go-review.googlesource.com/9164
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Diffstat (limited to 'src/runtime/sys_linux_arm64.s')
| -rw-r--r-- | src/runtime/sys_linux_arm64.s | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/src/runtime/sys_linux_arm64.s b/src/runtime/sys_linux_arm64.s index 52b34e8f41..ea8520c51d 100644 --- a/src/runtime/sys_linux_arm64.s +++ b/src/runtime/sys_linux_arm64.s @@ -333,14 +333,19 @@ child: MOVD $0, R0 MOVD R0, (R0) // crash - // Initialize m->procid to Linux tid good: + // Initialize m->procid to Linux tid MOVD $SYS_gettid, R8 SVC - MOVD -24(RSP), R12 - MOVD -16(RSP), R11 - MOVD -8(RSP), R10 + MOVD -24(RSP), R12 // fn + MOVD -16(RSP), R11 // g + MOVD -8(RSP), R10 // m + + CMP $0, R10 + BEQ nog + CMP $0, R11 + BEQ nog MOVD R0, m_procid(R10) @@ -351,6 +356,7 @@ good: MOVD R11, g //CALL runtime·stackcheck(SB) +nog: // Call fn MOVD R12, R0 BL (R0) @@ -362,13 +368,6 @@ again: SVC B again // keep exiting -// int32 clone0(int32 flags, void *stack, void* fn, void* fnarg); -TEXT runtime·clone0(SB),NOSPLIT,$0 - // TODO(spetrovic): Implement this method. - MOVW $-1, R0 - MOVW R0, ret+32(FP) - RET - TEXT runtime·sigaltstack(SB),NOSPLIT,$-8 MOVD new+0(FP), R0 MOVD old+8(FP), R1 |