dlfcn: add RTLD_DEFAULT macro value (#135)

Closes #134

---------

Signed-off-by: Eliott Bouhana <eliott.bouhana@datadoghq.com>

3 files · +16 -8

M dlfcn_darwin.go +5 -4


@@ -6,10 +6,11 @@ package purego
6	6		// Source for constants: https://opensource.apple.com/source/dyld/dyld-360.14/include/dlfcn.h.auto.html
7	7
8	8		const (
9		-	RTLD_LAZY = 0x1 // Relocations are performed at an implementation-dependent time.
10		-	RTLD_NOW = 0x2 // Relocations are performed when the object is loaded.
11		-	RTLD_LOCAL = 0x4 // All symbols are not made available for relocation processing by other modules.
12		-	RTLD_GLOBAL = 0x8 // All symbols are available for relocation processing of other modules.
	9	+	RTLD_DEFAULT = ^uintptr(0) - 1 // Pseudo-handle for dlsym so search for any loaded symbol
	10	+	RTLD_LAZY = 0x1 // Relocations are performed at an implementation-dependent time.
	11	+	RTLD_NOW = 0x2 // Relocations are performed when the object is loaded.
	12	+	RTLD_LOCAL = 0x4 // All symbols are not made available for relocation processing by other modules.
	13	+	RTLD_GLOBAL = 0x8 // All symbols are available for relocation processing of other modules.
13	14		)
14	15
15	16		//go:cgo_import_dynamic purego_dlopen dlopen "/usr/lib/libSystem.B.dylib"


@@ -6,10 +6,11 @@ package purego
6		// Source for constants: https://opensource.apple.com/source/dyld/dyld-360.14/include/dlfcn.h.auto.html	6		// Source for constants: https://opensource.apple.com/source/dyld/dyld-360.14/include/dlfcn.h.auto.html
7			7
8		const (	8		const (
9	-	RTLD_LAZY = 0x1 // Relocations are performed at an implementation-dependent time.	9	+	RTLD_DEFAULT = ^uintptr(0) - 1 // Pseudo-handle for dlsym so search for any loaded symbol
10	-	RTLD_NOW = 0x2 // Relocations are performed when the object is loaded.	10	+	RTLD_LAZY = 0x1 // Relocations are performed at an implementation-dependent time.
11	-	RTLD_LOCAL = 0x4 // All symbols are not made available for relocation processing by other modules.	11	+	RTLD_NOW = 0x2 // Relocations are performed when the object is loaded.
12	-	RTLD_GLOBAL = 0x8 // All symbols are available for relocation processing of other modules.	12	+	RTLD_LOCAL = 0x4 // All symbols are not made available for relocation processing by other modules.
			13	+	RTLD_GLOBAL = 0x8 // All symbols are available for relocation processing of other modules.
13		)	14		)
14			15
15		//go:cgo_import_dynamic purego_dlopen dlopen "/usr/lib/libSystem.B.dylib"	16		//go:cgo_import_dynamic purego_dlopen dlopen "/usr/lib/libSystem.B.dylib"

M dlfcn_linux.go +5 -4


@@ -6,8 +6,9 @@ package purego
6	6		// Source for constants: https://codebrowser.dev/glibc/glibc/bits/dlfcn.h.html
7	7
8	8		const (
9		-	RTLD_LAZY = 0x00001 // Relocations are performed at an implementation-dependent time.
10		-	RTLD_NOW = 0x00002 // Relocations are performed when the object is loaded.
11		-	RTLD_LOCAL = 0x00000 // All symbols are not made available for relocation processing by other modules.
12		-	RTLD_GLOBAL = 0x00100 // All symbols are available for relocation processing of other modules.
	9	+	RTLD_DEFAULT = 0x00000 // Pseudo-handle for dlsym so search for any loaded symbol
	10	+	RTLD_LAZY = 0x00001 // Relocations are performed at an implementation-dependent time.
	11	+	RTLD_NOW = 0x00002 // Relocations are performed when the object is loaded.
	12	+	RTLD_LOCAL = 0x00000 // All symbols are not made available for relocation processing by other modules.
	13	+	RTLD_GLOBAL = 0x00100 // All symbols are available for relocation processing of other modules.
13	14		)


@@ -6,8 +6,9 @@ package purego
6		// Source for constants: https://codebrowser.dev/glibc/glibc/bits/dlfcn.h.html	6		// Source for constants: https://codebrowser.dev/glibc/glibc/bits/dlfcn.h.html
7			7
8		const (	8		const (
9	-	RTLD_LAZY = 0x00001 // Relocations are performed at an implementation-dependent time.	9	+	RTLD_DEFAULT = 0x00000 // Pseudo-handle for dlsym so search for any loaded symbol
10	-	RTLD_NOW = 0x00002 // Relocations are performed when the object is loaded.	10	+	RTLD_LAZY = 0x00001 // Relocations are performed at an implementation-dependent time.
11	-	RTLD_LOCAL = 0x00000 // All symbols are not made available for relocation processing by other modules.	11	+	RTLD_NOW = 0x00002 // Relocations are performed when the object is loaded.
12	-	RTLD_GLOBAL = 0x00100 // All symbols are available for relocation processing of other modules.	12	+	RTLD_LOCAL = 0x00000 // All symbols are not made available for relocation processing by other modules.
			13	+	RTLD_GLOBAL = 0x00100 // All symbols are available for relocation processing of other modules.
13		)	14		)

M dlfcn_test.go +6 -0


@@ -18,6 +18,12 @@ import (
18	18		"github.com/ebitengine/purego"
19	19		)
20	20
	21	+	func TestSimpleDlsym(t *testing.T) {
	22	+	if _, err := purego.Dlsym(purego.RTLD_DEFAULT, "dlsym"); err != nil {
	23	+	t.Errorf("Dlsym with RTLD_DEFAULT failed: %v", err)
	24	+	}
	25	+	}
	26	+
21	27		func TestNestedDlopenCall(t *testing.T) {
22	28		libFileName := filepath.Join(t.TempDir(), "libdlnested.so")
23	29		t.Logf("Build %v", libFileName)


@@ -18,6 +18,12 @@ import (
18	"github.com/ebitengine/purego"	18		"github.com/ebitengine/purego"
19	)	19		)
20		20
		21	+	func TestSimpleDlsym(t *testing.T) {
		22	+	if _, err := purego.Dlsym(purego.RTLD_DEFAULT, "dlsym"); err != nil {
		23	+	t.Errorf("Dlsym with RTLD_DEFAULT failed: %v", err)
		24	+	}
		25	+	}
		26	+
21	func TestNestedDlopenCall(t *testing.T) {	27		func TestNestedDlopenCall(t *testing.T) {
22	libFileName := filepath.Join(t.TempDir(), "libdlnested.so")	28		libFileName := filepath.Join(t.TempDir(), "libdlnested.so")
23	t.Logf("Build %v", libFileName)	29		t.Logf("Build %v", libFileName)