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-rw-r--r--elf/dl-support.c2
-rw-r--r--elf/elf.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/elf/dl-support.c b/elf/dl-support.c
index efeddb6fe1..1e547d3b4d 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -127,6 +127,8 @@ size_t _dl_phnum;
#ifdef NEED_DL_SYSINFO
/* Needed for improved syscall handling on at least x86/Linux. */
uintptr_t _dl_sysinfo = DL_SYSINFO_DEFAULT;
+/* Address of the unwind info for the vsyscall page. */
+uintptr_t _dl_sysinfo_eh_frame;
#endif
/* During the program run we must not modify the global data of
diff --git a/elf/elf.h b/elf/elf.h
index 4a1f0fb4e0..69adde46ed 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -949,6 +949,7 @@ typedef struct
/* Pointer to the global system page used for system calls and other
nice things. */
#define AT_SYSINFO 32
+#define AT_SYSINFO_EH_FRAME 33
/* Note section contents. Each entry in the note section begins with