Commit c940735c4d
Changed files (1)
test
link
test/link/elf.zig
@@ -31,6 +31,7 @@ pub fn build(b: *Build) void {
// elf_step.dependOn(testLinkingZig(b, .{ .use_llvm = false }));
// Exercise linker with LLVM backend
+ elf_step.dependOn(testAbsSymbols(b, .{ .target = musl_target }));
elf_step.dependOn(testCommonSymbols(b, .{ .target = musl_target }));
elf_step.dependOn(testCommonSymbolsInArchive(b, .{ .target = musl_target }));
elf_step.dependOn(testEmptyObject(b, .{ .target = musl_target }));
@@ -41,6 +42,7 @@ pub fn build(b: *Build) void {
elf_step.dependOn(testTlsStatic(b, .{ .target = musl_target }));
elf_step.dependOn(testAsNeeded(b, .{ .target = glibc_target, .dynamic_linker = dynamic_linker }));
+ elf_step.dependOn(testCanonicalPlt(b, .{ .target = glibc_target, .dynamic_linker = dynamic_linker }));
elf_step.dependOn(testDsoPlt(b, .{ .target = glibc_target, .dynamic_linker = dynamic_linker }));
elf_step.dependOn(testDsoUndef(b, .{ .target = glibc_target, .dynamic_linker = dynamic_linker }));
elf_step.dependOn(testLargeAlignmentDso(b, .{ .target = glibc_target, .dynamic_linker = dynamic_linker }));
@@ -50,6 +52,46 @@ pub fn build(b: *Build) void {
}
}
+fn testAbsSymbols(b: *Build, opts: Options) *Step {
+ const test_step = addTestStep(b, "abs-symbols", opts);
+
+ const obj = addObject(b, "obj", opts);
+ addAsmSourceBytes(obj,
+ \\.globl foo
+ \\foo = 0x800008
+ );
+
+ const exe = addExecutable(b, "test", opts);
+ addCSourceBytes(exe,
+ \\#include <signal.h>
+ \\#include <stdio.h>
+ \\#include <stdlib.h>
+ \\#include <ucontext.h>
+ \\#include <assert.h>
+ \\void handler(int signum, siginfo_t *info, void *ptr) {
+ \\ assert((size_t)info->si_addr == 0x800008);
+ \\ exit(0);
+ \\}
+ \\extern int foo;
+ \\int main() {
+ \\ struct sigaction act;
+ \\ act.sa_flags = SA_SIGINFO | SA_RESETHAND;
+ \\ act.sa_sigaction = handler;
+ \\ sigemptyset(&act.sa_mask);
+ \\ sigaction(SIGSEGV, &act, 0);
+ \\ foo = 5;
+ \\ return 0;
+ \\}
+ , &.{});
+ exe.addObject(obj);
+ exe.linkLibC();
+
+ const run = addRunArtifact(exe);
+ test_step.dependOn(&run.step);
+
+ return test_step;
+}
+
fn testAsNeeded(b: *Build, opts: Options) *Step {
const test_step = addTestStep(b, "as-needed", opts);
@@ -62,7 +104,7 @@ fn testAsNeeded(b: *Build, opts: Options) *Step {
\\ return 0;
\\}
, &.{});
- main_o.is_linking_libc = true;
+ main_o.linkLibC();
const libfoo = addSharedLibrary(b, "foo", opts);
addCSourceBytes(libfoo, "int foo() { return 42; }", &.{"-fPIC"});
@@ -88,7 +130,7 @@ fn testAsNeeded(b: *Build, opts: Options) *Step {
exe.linkSystemLibrary2("baz", .{ .needed = true });
exe.addLibraryPath(libbaz.getEmittedBinDirectory());
exe.addRPath(libbaz.getEmittedBinDirectory());
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("42\n");
@@ -114,7 +156,7 @@ fn testAsNeeded(b: *Build, opts: Options) *Step {
exe.linkSystemLibrary2("baz", .{ .needed = false });
exe.addLibraryPath(libbaz.getEmittedBinDirectory());
exe.addRPath(libbaz.getEmittedBinDirectory());
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("42\n");
@@ -132,6 +174,54 @@ fn testAsNeeded(b: *Build, opts: Options) *Step {
return test_step;
}
+fn testCanonicalPlt(b: *Build, opts: Options) *Step {
+ const test_step = addTestStep(b, "canonical-plt", opts);
+
+ const dso = addSharedLibrary(b, "a", opts);
+ addCSourceBytes(dso,
+ \\void *foo() {
+ \\ return foo;
+ \\}
+ \\void *bar() {
+ \\ return bar;
+ \\}
+ , &.{"-fPIC"});
+
+ const b_o = addObject(b, "obj", opts);
+ addCSourceBytes(b_o,
+ \\void *bar();
+ \\void *baz() {
+ \\ return bar;
+ \\}
+ , &.{"-fPIC"});
+
+ const main_o = addObject(b, "main", opts);
+ addCSourceBytes(main_o,
+ \\#include <assert.h>
+ \\void *foo();
+ \\void *bar();
+ \\void *baz();
+ \\int main() {
+ \\ assert(foo == foo());
+ \\ assert(bar == bar());
+ \\ assert(bar == baz());
+ \\}
+ , &.{"-fno-PIC"});
+ main_o.linkLibC();
+
+ const exe = addExecutable(b, "main", opts);
+ exe.addObject(main_o);
+ exe.addObject(b_o);
+ exe.linkLibrary(dso);
+ exe.linkLibC();
+ exe.pie = false;
+
+ const run = addRunArtifact(exe);
+ test_step.dependOn(&run.step);
+
+ return test_step;
+}
+
fn testCommonSymbols(b: *Build, opts: Options) *Step {
const test_step = addTestStep(b, "common-symbols", opts);
@@ -150,7 +240,7 @@ fn testCommonSymbols(b: *Build, opts: Options) *Step {
\\ printf("%d %d %d\n", foo, bar, baz);
\\}
, &.{"-fcommon"});
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("0 5 42\n");
@@ -173,7 +263,7 @@ fn testCommonSymbolsInArchive(b: *Build, opts: Options) *Step {
\\ printf("%d %d %d %d\n", foo, bar, baz, two ? two() : -1);
\\}
, &.{"-fcommon"});
- a_o.is_linking_libc = true;
+ a_o.linkLibC();
const b_o = addObject(b, "b", opts);
addCSourceBytes(b_o, "int foo = 5;", &.{"-fcommon"});
@@ -196,7 +286,7 @@ fn testCommonSymbolsInArchive(b: *Build, opts: Options) *Step {
const exe = addExecutable(b, "test", opts);
exe.addObject(a_o);
exe.linkLibrary(lib);
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("5 0 0 -1\n");
@@ -218,7 +308,7 @@ fn testCommonSymbolsInArchive(b: *Build, opts: Options) *Step {
const exe = addExecutable(b, "test", opts);
exe.addObject(a_o);
exe.linkLibrary(lib);
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("5 0 7 2\n");
@@ -245,7 +335,7 @@ fn testDsoPlt(b: *Build, opts: Options) *Step {
\\ real_hello();
\\}
, &.{"-fPIC"});
- dso.is_linking_libc = true;
+ dso.linkLibC();
const exe = addExecutable(b, "test", opts);
addCSourceBytes(exe,
@@ -259,7 +349,7 @@ fn testDsoPlt(b: *Build, opts: Options) *Step {
\\}
, &.{});
exe.linkLibrary(dso);
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("Hello WORLD\n");
@@ -277,7 +367,7 @@ fn testDsoUndef(b: *Build, opts: Options) *Step {
\\int bar = 5;
\\int baz() { return foo; }
, &.{"-fPIC"});
- dso.is_linking_libc = true;
+ dso.linkLibC();
const obj = addObject(b, "obj", opts);
addCSourceBytes(obj, "int foo = 3;", &.{});
@@ -294,7 +384,7 @@ fn testDsoUndef(b: *Build, opts: Options) *Step {
\\ return bar - 5;
\\}
, &.{});
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectExitCode(0);
@@ -314,7 +404,7 @@ fn testEmptyObject(b: *Build, opts: Options) *Step {
const exe = addExecutable(b, "test", opts);
addCSourceBytes(exe, "int main() { return 0; }", &.{});
addCSourceBytes(exe, "", &.{});
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectExitCode(0);
@@ -345,15 +435,15 @@ fn testGcSections(b: *Build, opts: Options) *Step {
, &.{});
obj.link_function_sections = true;
obj.link_data_sections = true;
- obj.is_linking_libc = true;
- obj.is_linking_libcpp = true;
+ obj.linkLibC();
+ obj.linkLibCpp();
{
const exe = addExecutable(b, "test", opts);
exe.addObject(obj);
exe.link_gc_sections = false;
- exe.is_linking_libc = true;
- exe.is_linking_libcpp = true;
+ exe.linkLibC();
+ exe.linkLibCpp();
const run = addRunArtifact(exe);
run.expectStdOutEqual("1 2\n");
@@ -383,8 +473,8 @@ fn testGcSections(b: *Build, opts: Options) *Step {
const exe = addExecutable(b, "test", opts);
exe.addObject(obj);
exe.link_gc_sections = true;
- exe.is_linking_libc = true;
- exe.is_linking_libcpp = true;
+ exe.linkLibC();
+ exe.linkLibCpp();
const run = addRunArtifact(exe);
run.expectStdOutEqual("1 2\n");
@@ -434,7 +524,7 @@ fn testLargeAlignmentDso(b: *Build, opts: Options) *Step {
\\}
, &.{"-fPIC"});
dso.link_function_sections = true;
- dso.is_linking_libc = true;
+ dso.linkLibC();
const check = dso.checkObject();
check.checkInSymtab();
@@ -451,7 +541,7 @@ fn testLargeAlignmentDso(b: *Build, opts: Options) *Step {
\\int main() { greet(); }
, &.{});
exe.linkLibrary(dso);
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("Hello world");
@@ -485,7 +575,7 @@ fn testLargeAlignmentExe(b: *Build, opts: Options) *Step {
\\}
, &.{});
exe.link_function_sections = true;
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("Hello world");
@@ -514,7 +604,7 @@ fn testLinkingC(b: *Build, opts: Options) *Step {
\\ return 0;
\\}
, &.{});
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual("Hello World!\n");
@@ -543,8 +633,8 @@ fn testLinkingCpp(b: *Build, opts: Options) *Step {
\\ return 0;
\\}
, &.{});
- exe.is_linking_libc = true;
- exe.is_linking_libcpp = true;
+ exe.linkLibC();
+ exe.linkLibCpp();
const run = addRunArtifact(exe);
run.expectStdOutEqual("Hello World!\n");
@@ -606,7 +696,7 @@ fn testTlsStatic(b: *Build, opts: Options) *Step {
\\ return 0;
\\}
, &.{});
- exe.is_linking_libc = true;
+ exe.linkLibC();
const run = addRunArtifact(exe);
run.expectStdOutEqual(