link.h: Import from musl

Copied as is from the official musl git mirror
git://git.musl-libc.org/musl, commit 6fcb440d.

Signed-off-by: Costin Lupu <costin.lupu@cs.pub.ro>
Reviewed-by: Charalampos Mainas <charalampos.mainas@neclab.eu>

diff --git a/musl-imported/arch/generic/bits/link.h b/musl-imported/arch/generic/bits/link.h
new file mode 100644 (file)
index 0000000..4a94d8f
--- /dev/null
+++ b/musl-imported/arch/generic/bits/link.h
@@ -0,0 +1 @@
+typedef uint32_t Elf_Symndx;

diff --git a/musl-imported/include/link.h b/musl-imported/include/link.h
new file mode 100644 (file)
index 0000000..8150185
--- /dev/null
+++ b/musl-imported/include/link.h
@@ -0,0 +1,53 @@
+#ifndef _LINK_H
+#define _LINK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <elf.h>
+#define __NEED_size_t
+#define __NEED_uint32_t
+#include <bits/alltypes.h>
+
+#if UINTPTR_MAX > 0xffffffff
+#define ElfW(type) Elf64_ ## type
+#else
+#define ElfW(type) Elf32_ ## type
+#endif
+
+#include <bits/link.h>
+
+struct dl_phdr_info {
+       ElfW(Addr) dlpi_addr;
+       const char *dlpi_name;
+       const ElfW(Phdr) *dlpi_phdr;
+       ElfW(Half) dlpi_phnum;
+       unsigned long long int dlpi_adds;
+       unsigned long long int dlpi_subs;
+       size_t dlpi_tls_modid;
+       void *dlpi_tls_data;
+};
+
+struct link_map {
+       ElfW(Addr) l_addr;
+       char *l_name;
+       ElfW(Dyn) *l_ld;
+       struct link_map *l_next, *l_prev;
+};
+
+struct r_debug {
+       int r_version;
+       struct link_map *r_map;
+       ElfW(Addr) r_brk;
+       enum { RT_CONSISTENT, RT_ADD, RT_DELETE } r_state;
+       ElfW(Addr) r_ldbase;
+};
+
+int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *), void *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif