Correct dl_iterate_phdr address

The base should be zero so that p_vaddr + dlpi_addr = p_vaddr

1 files changed, 0 insertions, 57 deletions

diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index fcc1e62489..5c25b4369c 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -1041,63 +1041,6 @@ pub fn uname(uts: *utsname) usize {
     return syscall1(SYS_uname, @ptrToInt(uts));
 }
 
-// XXX: This should be weak
-extern const __ehdr_start: elf.Ehdr;
-
-pub fn dl_iterate_phdr(comptime T: type, callback: extern fn (info: *dl_phdr_info, size: usize, data: ?*T) i32, data: ?*T) isize {
-    if (builtin.link_libc) {
-        return std.c.dl_iterate_phdr(@ptrCast(std.c.dl_iterate_phdr_callback, callback), @ptrCast(?*c_void, data));
-    }
-
-    const elf_base = @ptrToInt(&__ehdr_start);
-    const n_phdr = __ehdr_start.e_phnum;
-    const phdrs = (@intToPtr([*]elf.Phdr, elf_base + __ehdr_start.e_phoff))[0..n_phdr];
-
-    var it = dl.linkmap_iterator(phdrs) catch return 0;
-
-    // The executable has no dynamic link segment, create a single entry for
-    // the whole ELF image
-    if (it.end()) {
-        var info = dl_phdr_info{
-            .dlpi_addr = elf_base,
-            .dlpi_name = "/proc/self/exe",
-            .dlpi_phdr = @intToPtr([*]elf.Phdr, elf_base + __ehdr_start.e_phoff),
-            .dlpi_phnum = __ehdr_start.e_phnum,
-        };
-
-        return callback(&info, @sizeOf(dl_phdr_info), data);
-    }
-
-    // Last return value from the callback function
-    var last_r: isize = 0;
-    while (it.next()) |entry| {
-        var dlpi_phdr: usize = undefined;
-        var dlpi_phnum: u16 = undefined;
-
-        if (entry.l_addr != 0) {
-            const elf_header = @intToPtr(*elf.Ehdr, entry.l_addr);
-            dlpi_phdr = entry.l_addr + elf_header.e_phoff;
-            dlpi_phnum = elf_header.e_phnum;
-        } else {
-            // This is the running ELF image
-            dlpi_phdr = elf_base + __ehdr_start.e_phoff;
-            dlpi_phnum = __ehdr_start.e_phnum;
-        }
-
-        var info = dl_phdr_info{
-            .dlpi_addr = entry.l_addr,
-            .dlpi_name = entry.l_name,
-            .dlpi_phdr = @intToPtr([*]elf.Phdr, dlpi_phdr),
-            .dlpi_phnum = dlpi_phnum,
-        };
-
-        last_r = callback(&info, @sizeOf(dl_phdr_info), data);
-        if (last_r != 0) break;
-    }
-
-    return last_r;
-}
-
 pub fn io_uring_setup(entries: u32, p: *io_uring_params) usize {
     return syscall2(SYS_io_uring_setup, entries, @ptrToInt(p));
 }