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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2008-12-25 13:38:35 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-12-25 13:38:54 +0100
commitfc5243d98ac2575ad14a974b3c097e9ba874c03d (patch)
tree014f2b61180433799a438e1e2022636f0b8c6a7b
parenta114a9d69d1362546b9dda651028acb311ddb7af (diff)
downloadop-kernel-dev-fc5243d98ac2575ad14a974b3c097e9ba874c03d.zip
op-kernel-dev-fc5243d98ac2575ad14a974b3c097e9ba874c03d.tar.gz
[S390] arch_setup_additional_pages arguments
arch_setup_additional_pages currently gets two arguments, the binary format descripton and an indication if the process uses an executable stack or not. The second argument is not used by anybody, it could be removed without replacement. What actually does make sense is to pass an indication if the process uses the elf interpreter or not. The glibc code will not use anything from the vdso if the process does not use the dynamic linker, so for statically linked binaries the architecture backend can choose not to map the vdso. Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r--arch/powerpc/include/asm/elf.h2
-rw-r--r--arch/powerpc/kernel/vdso.c3
-rw-r--r--arch/sh/include/asm/elf.h2
-rw-r--r--arch/sh/kernel/vsyscall/vsyscall.c3
-rw-r--r--arch/x86/include/asm/elf.h2
-rw-r--r--arch/x86/vdso/vdso32-setup.c2
-rw-r--r--arch/x86/vdso/vma.c2
-rw-r--r--fs/binfmt_elf.c2
8 files changed, 8 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index d812929..cd46f02 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -267,7 +267,7 @@ extern int ucache_bsize;
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
- int executable_stack);
+ int uses_interp);
#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
#endif /* __KERNEL__ */
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 65639a4..f7ec7d0 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -184,8 +184,7 @@ static void dump_vdso_pages(struct vm_area_struct * vma)
* This is called from binfmt_elf, we create the special vma for the
* vDSO and insert it into the mm struct tree
*/
-int arch_setup_additional_pages(struct linux_binprm *bprm,
- int executable_stack)
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
struct mm_struct *mm = current->mm;
struct page **vdso_pagelist;
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h
index 9eb9036..9381397 100644
--- a/arch/sh/include/asm/elf.h
+++ b/arch/sh/include/asm/elf.h
@@ -204,7 +204,7 @@ do { \
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
- int executable_stack);
+ int uses_interp);
extern unsigned int vdso_enabled;
extern void __kernel_vsyscall;
diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c
index 95f4de0..3f7e415 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.c
+++ b/arch/sh/kernel/vsyscall/vsyscall.c
@@ -59,8 +59,7 @@ int __init vsyscall_init(void)
}
/* Setup a VMA at program startup for the vsyscall page */
-int arch_setup_additional_pages(struct linux_binprm *bprm,
- int executable_stack)
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
struct mm_struct *mm = current->mm;
unsigned long addr;
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 40ca1be..f51a3dd 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -325,7 +325,7 @@ struct linux_binprm;
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
- int executable_stack);
+ int uses_interp);
extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
#define compat_arch_setup_additional_pages syscall32_setup_pages
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 513f330..1241f11 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -310,7 +310,7 @@ int __init sysenter_setup(void)
}
/* Setup a VMA at program startup for the vsyscall page */
-int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
struct mm_struct *mm = current->mm;
unsigned long addr;
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index 257ba4a..9c98cc6 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -98,7 +98,7 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
/* Setup a VMA at program startup for the vsyscall page.
Not called for compat tasks */
-int arch_setup_additional_pages(struct linux_binprm *bprm, int exstack)
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
struct mm_struct *mm = current->mm;
unsigned long addr;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 8fcfa39..95a76ff 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -949,7 +949,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
set_binfmt(&elf_format);
#ifdef ARCH_HAS_SETUP_ADDITIONAL_PAGES
- retval = arch_setup_additional_pages(bprm, executable_stack);
+ retval = arch_setup_additional_pages(bprm, !!elf_interpreter);
if (retval < 0) {
send_sig(SIGKILL, current, 0);
goto out;
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