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unix: export sizeof consts

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Export the sizeof(Ptr|Short|Int|Long|LongLong) consts. This allows users
to get this information (e.g. for alignment purposes) without using cgo
or generating these constants themselves.

Change-Id: I8640482bf67b89c2f2b6e9a116ba7bc268f8135a
Reviewed-on: https://go-review.googlesource.com/c/139617
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser
2018-10-04 14:53:25 +00:00
committed by Tobias Klauser
parent af653ce8b7
commit 8469e31483
41 changed files with 216 additions and 216 deletions
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unix/syscall_linux.go
+13 -13
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@@ -1122,7 +1122,7 @@ func ptracePeek(req int, pid int, addr uintptr, out []byte) (count int, err erro
// The ptrace syscall differs from glibc's ptrace.
// Peeks returns the word in *data, not as the return value.
var buf [sizeofPtr]byte
var buf [SizeofPtr]byte
// Leading edge. PEEKTEXT/PEEKDATA don't require aligned
// access (PEEKUSER warns that it might), but if we don't
@@ -1130,12 +1130,12 @@ func ptracePeek(req int, pid int, addr uintptr, out []byte) (count int, err erro
// boundary and not get the bytes leading up to the page
// boundary.
n := 0
if addr%sizeofPtr != 0 {
err = ptrace(req, pid, addr-addr%sizeofPtr, uintptr(unsafe.Pointer(&buf[0])))
if addr%SizeofPtr != 0 {
err = ptrace(req, pid, addr-addr%SizeofPtr, uintptr(unsafe.Pointer(&buf[0])))
if err != nil {
return 0, err
}
n += copy(out, buf[addr%sizeofPtr:])
n += copy(out, buf[addr%SizeofPtr:])
out = out[n:]
}
@@ -1173,15 +1173,15 @@ func ptracePoke(pokeReq int, peekReq int, pid int, addr uintptr, data []byte) (c
// Leading edge.
n := 0
if addr%sizeofPtr != 0 {
var buf [sizeofPtr]byte
err = ptrace(peekReq, pid, addr-addr%sizeofPtr, uintptr(unsafe.Pointer(&buf[0])))
if addr%SizeofPtr != 0 {
var buf [SizeofPtr]byte
err = ptrace(peekReq, pid, addr-addr%SizeofPtr, uintptr(unsafe.Pointer(&buf[0])))
if err != nil {
return 0, err
}
n += copy(buf[addr%sizeofPtr:], data)
n += copy(buf[addr%SizeofPtr:], data)
word := *((*uintptr)(unsafe.Pointer(&buf[0])))
err = ptrace(pokeReq, pid, addr-addr%sizeofPtr, word)
err = ptrace(pokeReq, pid, addr-addr%SizeofPtr, word)
if err != nil {
return 0, err
}
@@ -1189,19 +1189,19 @@ func ptracePoke(pokeReq int, peekReq int, pid int, addr uintptr, data []byte) (c
}
// Interior.
for len(data) > sizeofPtr {
for len(data) > SizeofPtr {
word := *((*uintptr)(unsafe.Pointer(&data[0])))
err = ptrace(pokeReq, pid, addr+uintptr(n), word)
if err != nil {
return n, err
}
n += sizeofPtr
data = data[sizeofPtr:]
n += SizeofPtr
data = data[SizeofPtr:]
}
// Trailing edge.
if len(data) > 0 {
var buf [sizeofPtr]byte
var buf [SizeofPtr]byte
err = ptrace(peekReq, pid, addr+uintptr(n), uintptr(unsafe.Pointer(&buf[0])))
if err != nil {
return n, err