bump to modernc.org/sqlite v1.29.7 (#2850)

vendor/modernc.org/memory/AUTHORS

@@ -8,6 +8,7 @@
 #
 # Please keep the list sorted.
 
-Jan Mercl <0xjnml@gmail.com>
-Steffen Butzer <steffen(dot)butzer@outlook.com>
 Gleb Sakhnov <gleb.sakhnov@gmail.com>
+Jan Mercl <0xjnml@gmail.com>
+Scot C Bontrager <scot@indievisible.org>
+Steffen Butzer <steffen(dot)butzer@outlook.com>

vendor/modernc.org/memory/CONTRIBUTORS

@@ -7,7 +7,8 @@
 # Please keep the list sorted.
 
 Anup Kodlekere <anup.kodlekere@ibm.com>
+Gleb Sakhnov <gleb.sakhnov@gmail.com>
 Jan Mercl <0xjnml@gmail.com>
+Scot C Bontrager <scot@indievisible.org>
 Steffen Butzer <steffen(dot)butzer@outlook.com>
 ZHU Zijia <piggynl@outlook.com>
-Gleb Sakhnov <gleb.sakhnov@gmail.com>

vendor/modernc.org/memory/builder.json

@@ -0,0 +1,6 @@
+{
+	"autogen": "none",
+	"autotag": "darwin/(amd64|arm64)|freebsd/(amd64|arm64)|linux/(386|amd64|arm|arm64|loong64|ppc64le|riscv64|s390x)|openbsd/amd64|windows/(amd64|arm64)",
+	"autoupdate": "darwin/(amd64|arm64)|freebsd/(amd64|arm64)|linux/(386|amd64|arm|arm64|loong64|ppc64le|riscv64|s390x)|openbsd/amd64|windows/(amd64|arm64)",
+	"test": "darwin/(amd64|arm64)|freebsd/(amd64|arm64)|linux/(386|amd64|arm|arm64|loong64|ppc64le|riscv64|s390x)|openbsd/amd64|windows/(amd64|arm64)"
+}

vendor/modernc.org/memory/mmap_openbsd.go

@@ -1,19 +1,97 @@
-// Copyright 2017 The Memory Authors. All rights reserved.
+// Copyright 2011 Evan Shaw. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE-MMAP-GO file.
+
+// Modifications (c) 2024 The Memory Authors.
+// Copyright 2024 The Memory Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build 386 || amd64 || arm64
-// +build 386 amd64 arm64
+//go:build openbsd && (386 || amd64 || arm64)
 
 package memory
 
 import (
-	_ "unsafe"
+	"fmt"
+	"os"
+	"sync"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
 )
 
-// Function syscall.mmap for darwin and openbsd calls internal/abi.FuncPCABI0,
-// which is implemented as a compile intrinsic so the code cannot be reused.
-// Using go:linkname directive to link mmapSyscall to syscall.mmap
+// track what can be unmapped
+var allocmap map[uintptr][]byte
+var m sync.Mutex
 
-//go:linkname mmapSyscall syscall.mmap
-func mmapSyscall(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
+const pageSizeLog = 20
+
+var (
+	osPageMask = osPageSize - 1
+	osPageSize = os.Getpagesize()
+)
+
+func init() {
+	allocmap = make(map[uintptr][]byte)
+}
+
+func unmap(addr uintptr, size int) error {
+	if trace {
+		fmt.Fprintf(os.Stderr, "unmap %#x\n", addr)
+	}
+
+	a, ok := allocmap[addr]
+	if !ok {
+		if trace {
+			fmt.Fprintf(os.Stderr, "unmap %#x: not found\n", addr)
+		}
+		// panic("unmap called on unknown mapping")
+		return nil
+	}
+
+	if err := unix.Munmap(a); err != nil {
+		if trace {
+			fmt.Fprintf(os.Stderr, "unmap: %s\n", err.Error())
+		}
+		// panic(err.Error())
+		return err
+	}
+
+	m.Lock()
+	delete(allocmap, addr)
+	m.Unlock()
+
+	return nil
+}
+
+func mmap(size int) (uintptr, int, error) {
+	roundsize := roundup(size, osPageSize) + pageSize
+
+	b, err := unix.Mmap(-1, 0, roundsize, unix.PROT_READ|unix.PROT_WRITE, unix.MAP_PRIVATE|unix.MAP_ANON)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	p := uintptr(unsafe.Pointer(&b[0]))
+
+	if trace {
+		fmt.Fprintf(os.Stderr, "mmap actual @%#x size: %#x\n", p, roundsize)
+	}
+
+	// waste all the space until the next page
+	r := (p + uintptr(pageSize)) &^ uintptr(pageMask)
+	nsize := (roundsize) - int((r - p))
+	if nsize < size {
+		panic("didn't allocate enough to meet initial request!")
+	}
+
+	if trace {
+		fmt.Fprintf(os.Stderr, "mmap page-rounded @%#x size: %#x\n", r, nsize)
+	}
+
+	m.Lock()
+	allocmap[r] = b
+	m.Unlock()
+
+	return r, nsize, nil
+}

vendor/modernc.org/memory/mmap_unix.go

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE-MMAP-GO file.
 
-//go:build darwin || dragonfly || freebsd || linux || openbsd || (solaris && !illumos) || netbsd
-// +build darwin dragonfly freebsd linux openbsd solaris,!illumos netbsd
+//go:build darwin || dragonfly || freebsd || linux || (solaris && !illumos) || netbsd
+// +build darwin dragonfly freebsd linux solaris,!illumos netbsd
 
 // Modifications (c) 2017 The Memory Authors.
 
@@ -33,6 +33,7 @@ func unmap(addr uintptr, size int) error {
 // pageSize aligned.
 func mmap(size int) (uintptr, int, error) {
 	size = roundup(size, osPageSize)
+
 	// The actual mmap syscall varies by architecture. mmapSyscall provides same
 	// functionality as the unexported funtion syscall.mmap and is declared in
 	// mmap_*_*.go and mmap_fallback.go. To add support for a new architecture,