lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/lib/mlibc/options/elf/include/link.h b/lib/mlibc/options/elf/include/link.h
new file mode 100644
index 0000000..65d54b9
--- /dev/null
+++ b/lib/mlibc/options/elf/include/link.h
@@ -0,0 +1,58 @@
+#ifndef _LINK_H
+#define _LINK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <elf.h>
+#include <stddef.h>
+    
+#if defined(__x86_64__) || defined(__aarch64__) \
+	|| (defined(__riscv) && __riscv_xlen == 64)
+#	define ElfW(type) Elf64_ ## type
+#elif defined(__i386__)
+#	define ElfW(type) Elf32_ ## type
+#else
+# 	error Unknown architecture
+#endif
+    
+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 {
+	Elf64_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;
+	Elf64_Addr r_brk;
+	enum { RT_CONSISTENT, RT_ADD, RT_DELETE } r_state;
+	Elf64_Addr r_ldbase;
+};
+
+#ifndef __MLIBC_ABI_ONLY
+
+int dl_iterate_phdr(int (*callback)(struct dl_phdr_info*, size_t, void*), void* data);
+
+extern ElfW(Dyn) _DYNAMIC[];
+
+#endif /* !__MLIBC_ABI_ONLY */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _LINK_H