Rename from vdso_image_info to avoid a symbol clash.
Define HAVE_VDSO_IMAGE_INFO to signal the external definition exists.
Provide fallback versions for other targets.
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
linux-user/arm/target_elf.h | 1 +
linux-user/loader.h | 12 +++++++++++
linux-user/arm/elfload.c | 20 ++++++++++++++++++
linux-user/elfload.c | 41 ++++++++-----------------------------
4 files changed, 42 insertions(+), 32 deletions(-)
diff --git a/linux-user/arm/target_elf.h b/linux-user/arm/target_elf.h
index 5f81a43efb..19fdfa2f2c 100644
--- a/linux-user/arm/target_elf.h
+++ b/linux-user/arm/target_elf.h
@@ -14,6 +14,7 @@
#define HAVE_ELF_HWCAP2 1
#define HAVE_ELF_PLATFORM 1
#define HAVE_ELF_CORE_DUMP 1
+#define HAVE_VDSO_IMAGE_INFO 1
#define HI_COMMPAGE ((intptr_t)0xffff0f00u)
diff --git a/linux-user/loader.h b/linux-user/loader.h
index c3b8f92e23..2175dd4e0a 100644
--- a/linux-user/loader.h
+++ b/linux-user/loader.h
@@ -110,4 +110,16 @@ bool init_guest_commpage(void);
struct target_elf_gregset_t;
void elf_core_copy_regs(struct target_elf_gregset_t *, const CPUArchState *);
+typedef struct {
+ const uint8_t *image;
+ const uint32_t *relocs;
+ unsigned image_size;
+ unsigned reloc_count;
+ unsigned sigreturn_ofs;
+ unsigned rt_sigreturn_ofs;
+} VdsoImageInfo;
+
+/* Note that both Elf32_Word and Elf64_Word are uint32_t. */
+const VdsoImageInfo *get_vdso_image_info(uint32_t elf_flags);
+
#endif /* LINUX_USER_LOADER_H */
diff --git a/linux-user/arm/elfload.c b/linux-user/arm/elfload.c
index a3f14af691..7e804d82a3 100644
--- a/linux-user/arm/elfload.c
+++ b/linux-user/arm/elfload.c
@@ -7,6 +7,7 @@
#include "target_elf.h"
#include "target/arm/cpu-features.h"
#include "target_elf.h"
+#include "elf.h"
const char *get_elf_cpu_model(uint32_t eflags)
@@ -255,3 +256,22 @@ void elf_core_copy_regs(target_elf_gregset_t *r, const
CPUARMState *env)
r->pt.cpsr = tswapal(cpsr_read((CPUARMState *)env));
r->pt.orig_r0 = tswapal(env->regs[0]);
}
+
+#if TARGET_BIG_ENDIAN
+# include "vdso-be8.c.inc"
+# include "vdso-be32.c.inc"
+#else
+# include "vdso-le.c.inc"
+#endif
+
+const VdsoImageInfo *get_vdso_image_info(uint32_t elf_flags)
+{
+#if TARGET_BIG_ENDIAN
+ return (EF_ARM_EABI_VERSION(elf_flags) >= EF_ARM_EABI_VER4
+ && (elf_flags & EF_ARM_BE8)
+ ? &vdso_be8_image_info
+ : &vdso_be32_image_info);
+#else
+ return &vdso_image_info;
+#endif
+}
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 81bf05f581..aed390ebb3 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -40,15 +40,6 @@
#define TARGET_ARCH_HAS_SIGTRAMP_PAGE 0
#endif
-typedef struct {
- const uint8_t *image;
- const uint32_t *relocs;
- unsigned image_size;
- unsigned reloc_count;
- unsigned sigreturn_ofs;
- unsigned rt_sigreturn_ofs;
-} VdsoImageInfo;
-
#define ELF_OSABI ELFOSABI_SYSV
/* from personality.h */
@@ -191,23 +182,6 @@ typedef abi_int target_pid_t;
#define ELF_EXEC_PAGESIZE 4096
-#if TARGET_BIG_ENDIAN
-#include "elf.h"
-#include "vdso-be8.c.inc"
-#include "vdso-be32.c.inc"
-
-static const VdsoImageInfo *vdso_image_info(uint32_t elf_flags)
-{
- return (EF_ARM_EABI_VERSION(elf_flags) >= EF_ARM_EABI_VER4
- && (elf_flags & EF_ARM_BE8)
- ? &vdso_be8_image_info
- : &vdso_be32_image_info);
-}
-#define vdso_image_info vdso_image_info
-#else
-# define VDSO_HEADER "vdso-le.c.inc"
-#endif
-
#else
/* 64 bit ARM definitions */
@@ -1973,14 +1947,17 @@ static void load_elf_interp(const char *filename,
struct image_info *info,
load_elf_image(filename, &src, info, &ehdr, NULL);
}
-#ifndef vdso_image_info
+#ifndef HAVE_VDSO_IMAGE_INFO
+const VdsoImageInfo *get_vdso_image_info(uint32_t elf_flags)
+{
#ifdef VDSO_HEADER
#include VDSO_HEADER
-#define vdso_image_info(flags) &vdso_image_info
+ return &vdso_image_info;
#else
-#define vdso_image_info(flags) NULL
-#endif /* VDSO_HEADER */
-#endif /* vdso_image_info */
+ return NULL;
+#endif
+}
+#endif /* HAVE_VDSO_IMAGE_INFO */
static void load_elf_vdso(struct image_info *info, const VdsoImageInfo *vdso)
{
@@ -2311,7 +2288,7 @@ int load_elf_binary(struct linux_binprm *bprm, struct
image_info *info)
* Load a vdso if available, which will amongst other things contain the
* signal trampolines. Otherwise, allocate a separate page for them.
*/
- const VdsoImageInfo *vdso = vdso_image_info(info->elf_flags);
+ const VdsoImageInfo *vdso = get_vdso_image_info(info->elf_flags);
if (vdso) {
load_elf_vdso(&vdso_info, vdso);
info->vdso = vdso_info.load_bias;
--
2.43.0
