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elf: test large alignment of funcs in DSO

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This commit is contained in:
Jakub Konka 2023-10-06 23:13:32 +02:00
parent 031e12b963
commit 11bdfe1179
1 changed files with 48 additions and 0 deletions
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48
test/link/elf.zig
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@ -42,6 +42,7 @@ pub fn build(b: *Build) void {
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 }));
}
fn testCommonSymbols(b: *Build, opts: Options) *Step {
@ -325,6 +326,53 @@ fn testGcSections(b: *Build, opts: Options) *Step {
return test_step;
}
fn testLargeAlignmentDso(b: *Build, opts: Options) *Step {
const test_step = addTestStep(b, "large-alignment-dso", opts);
const dso = addSharedLibrary(b, opts);
addCSourceBytes(dso,
\\#include <stdio.h>
\\#include <stdint.h>
\\void hello() __attribute__((aligned(32768), section(".hello")));
\\void world() __attribute__((aligned(32768), section(".world")));
\\void hello() {
\\ printf("Hello");
\\}
\\void world() {
\\ printf(" world");
\\}
\\void greet() {
\\ hello();
\\ world();
\\}
, &.{"-fPIC"});
dso.link_function_sections = true;
dso.is_linking_libc = true;
const check = dso.checkObject();
check.checkInSymtab();
check.checkExtract("{addr1} {size1} {shndx1} FUNC GLOBAL DEFAULT hello");
check.checkInSymtab();
check.checkExtract("{addr2} {size2} {shndx2} FUNC GLOBAL DEFAULT world");
check.checkComputeCompare("addr1 16 %", .{ .op = .eq, .value = .{ .literal = 0 } });
check.checkComputeCompare("addr2 16 %", .{ .op = .eq, .value = .{ .literal = 0 } });
test_step.dependOn(&check.step);
const exe = addExecutable(b, opts);
addCSourceBytes(exe,
\\void greet();
\\int main() { greet(); }
, &.{});
exe.linkLibrary(dso);
exe.is_linking_libc = true;
const run = addRunArtifact(exe);
run.expectStdOutEqual("Hello world");
test_step.dependOn(&run.step);
return test_step;
}
fn testLinkingC(b: *Build, opts: Options) *Step {
const test_step = addTestStep(b, "linking-c", opts);