mirror of
https://github.com/golang/go
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7bb38f6e47
We're allocating TLS storage for m0 anyway, so might as well use it. Change-Id: I7dc20bbea5320c8ab8a367f18a9540706751e771 Reviewed-on: https://go-review.googlesource.com/16890 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
36 lines
895 B
ArmAsm
36 lines
895 B
ArmAsm
#include "go_asm.h"
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#include "textflag.h"
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TEXT _rt0_ppc64le_linux(SB),NOSPLIT,$0
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BR _main<>(SB)
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TEXT _main<>(SB),NOSPLIT,$-8
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// In a statically linked binary, the stack contains argc,
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// argv as argc string pointers followed by a NULL, envv as a
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// sequence of string pointers followed by a NULL, and auxv.
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// There is no TLS base pointer.
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//
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// In a dynamically linked binary, r3 contains argc, r4
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// contains argv, r5 contains envp, r6 contains auxv, and r13
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// contains the TLS pointer.
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//
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// Figure out which case this is by looking at r4: if it's 0,
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// we're statically linked; otherwise we're dynamically
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// linked.
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CMP R0, R4
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BNE dlink
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// Statically linked
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MOVD 0(R1), R3 // argc
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ADD $8, R1, R4 // argv
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MOVD $runtime·m0+m_tls(SB), R13 // TLS
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ADD $0x7000, R13
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dlink:
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BR main(SB)
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TEXT main(SB),NOSPLIT,$-8
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MOVD $runtime·rt0_go(SB), R12
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MOVD R12, CTR
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BR (CTR)
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