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authorRichard Henderson <richard.henderson@linaro.org>2023-08-16 10:54:57 -0700
committerRichard Henderson <richard.henderson@linaro.org>2023-10-30 13:41:56 -0700
commit5d94c2ffa813d07678c59dea516be5153f85cb2f (patch)
treed58163c11712fa6a351a9d19826383c9efd01f27
parentb63c6b97f8f5d357f383d8227316733c758c7ddd (diff)
linux-user: Show vdso address in /proc/pid/maps
Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
-rw-r--r--linux-user/elfload.c1
-rw-r--r--linux-user/qemu.h1
-rw-r--r--linux-user/syscall.c2
3 files changed, 4 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index a1583883fa..46832358b0 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -3919,6 +3919,7 @@ int load_elf_binary(struct linux_binprm *bprm, struct image_info *info)
const VdsoImageInfo *vdso = vdso_image_info();
if (vdso) {
load_elf_vdso(&vdso_info, vdso);
+ info->vdso = vdso_info.load_bias;
} else if (TARGET_ARCH_HAS_SIGTRAMP_PAGE) {
abi_long tramp_page = target_mmap(0, TARGET_PAGE_SIZE,
PROT_READ | PROT_WRITE,
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 12f638336a..4de9ec783f 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -32,6 +32,7 @@ struct image_info {
abi_ulong brk;
abi_ulong start_stack;
abi_ulong stack_limit;
+ abi_ulong vdso;
abi_ulong entry;
abi_ulong code_offset;
abi_ulong data_offset;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index d49cd314a2..65ac3ac796 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -7992,6 +7992,8 @@ static void open_self_maps_4(const struct open_self_maps_data *d,
path = "[stack]";
} else if (start == info->brk) {
path = "[heap]";
+ } else if (start == info->vdso) {
+ path = "[vdso]";
}
/* Except null device (MAP_ANON), adjust offset for this fragment. */