8dc2499aa6
gotools/ * Makefile.am (go_cmd_cgo_files): Add ast_go118.go (check-go-tool): Copy golang.org/x/tools directories. * Makefile.in: Regenerate. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/384695
34 lines
1.3 KiB
Go
34 lines
1.3 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package sys
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import (
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"internal/goarch"
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"internal/goos"
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)
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// AIX requires a larger stack for syscalls.
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const StackGuardMultiplier = StackGuardMultiplierDefault*(1-goos.IsAix) + 2*goos.IsAix
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// DefaultPhysPageSize is the default physical page size.
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const DefaultPhysPageSize = goarch.DefaultPhysPageSize
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// PCQuantum is the minimal unit for a program counter (1 on x86, 4 on most other systems).
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// The various PC tables record PC deltas pre-divided by PCQuantum.
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const PCQuantum = goarch.PCQuantum
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// Int64Align is the required alignment for a 64-bit integer (4 on 32-bit systems, 8 on 64-bit).
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const Int64Align = goarch.PtrSize
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// MinFrameSize is the size of the system-reserved words at the bottom
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// of a frame (just above the architectural stack pointer).
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// It is zero on x86 and PtrSize on most non-x86 (LR-based) systems.
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// On PowerPC it is larger, to cover three more reserved words:
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// the compiler word, the link editor word, and the TOC save word.
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const MinFrameSize = goarch.MinFrameSize
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// StackAlign is the required alignment of the SP register.
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// The stack must be at least word aligned, but some architectures require more.
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const StackAlign = goarch.StackAlign
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