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https://git.kernel.org/pub/scm/libs/libcap/libcap.git
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c5a06aea03
The refactored libpsx code does not operate at the pthread abstraction. We still need the --wrap linkage to force libpsx to be linked into the binary if the binary makes no explicit calls to libpsx functions. But we should no longer need it in cases where the code calls psx_syscall[36](). This is a step towards addressing: https://bugzilla.kernel.org/show_bug.cgi?id=219456 Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
36 lines
1.3 KiB
Go
36 lines
1.3 KiB
Go
//go:build linux && !cgo && go1.16
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// +build linux,!cgo,go1.16
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package psx // import "kernel.org/pub/linux/libs/security/libcap/psx"
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import "syscall"
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// Documentation for these functions are provided in the psx_cgo.go
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// file.
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//go:uintptrescapes
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// Syscall3 performs a 3 argument syscall. Syscall3 differs from
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// syscall.[Raw]Syscall() insofar as it is simultaneously executed on
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// every thread of the combined Go and CGo runtimes. It works
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// differently depending on whether CGO_ENABLED is 1 or 0 at compile
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// time.
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//
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// If CGO_ENABLED=1 it uses the libpsx function C.psx_syscall3().
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//
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// If CGO_ENABLED=0 it redirects to the go1.16+
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// syscall.AllThreadsSyscall() function.
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func Syscall3(syscallnr, arg1, arg2, arg3 uintptr) (uintptr, uintptr, syscall.Errno) {
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return syscall.AllThreadsSyscall(syscallnr, arg1, arg2, arg3)
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}
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//go:uintptrescapes
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// Syscall6 performs a 6 argument syscall on every thread of the
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// combined Go and CGo runtimes. Other than the number of syscall
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// arguments, its behavior is identical to that of Syscall3() - see
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// above for the full documentation.
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func Syscall6(syscallnr, arg1, arg2, arg3, arg4, arg5, arg6 uintptr) (uintptr, uintptr, syscall.Errno) {
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return syscall.AllThreadsSyscall6(syscallnr, arg1, arg2, arg3, arg4, arg5, arg6)
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}
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