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um: Add an internal header shared among the user code

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Move relevant declarations to this header. This will address
below -Wmissing-prototypes warnings:

arch/um/os-Linux/elf_aux.c:26:13: warning: no previous prototype for ‘scan_elf_aux’ [-Wmissing-prototypes]
arch/um/os-Linux/mem.c:213:13: warning: no previous prototype for ‘check_tmpexec’ [-Wmissing-prototypes]
arch/um/os-Linux/skas/process.c:107:6: warning: no previous prototype for ‘wait_stub_done’ [-Wmissing-prototypes]

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Tiwei Bie 2024-04-23 20:58:56 +08:00 committed by Richard Weinberger
parent 6a85e34c4d
commit 847d3abc6a
7 changed files with 26 additions and 6 deletions
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1
arch/um/os-Linux/elf_aux.c
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@ -13,6 +13,7 @@
#include <init.h> #include <init.h>
#include <elf_user.h> #include <elf_user.h>
#include <mem_user.h> #include <mem_user.h>
#include "internal.h"
typedef Elf32_auxv_t elf_auxv_t; typedef Elf32_auxv_t elf_auxv_t;

20
arch/um/os-Linux/internal.h Normal file
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@ -0,0 +1,20 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __UM_OS_LINUX_INTERNAL_H
#define __UM_OS_LINUX_INTERNAL_H
/*
* elf_aux.c
*/
void scan_elf_aux(char **envp);
/*
* mem.c
*/
void check_tmpexec(void);
/*
* skas/process.c
*/
void wait_stub_done(int pid);
#endif /* __UM_OS_LINUX_INTERNAL_H */

3
arch/um/os-Linux/main.c
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@ -16,6 +16,7 @@
#include <kern_util.h> #include <kern_util.h>
#include <os.h> #include <os.h>
#include <um_malloc.h> #include <um_malloc.h>
#include "internal.h"
#define PGD_BOUND (4 * 1024 * 1024) #define PGD_BOUND (4 * 1024 * 1024)
#define STACKSIZE (8 * 1024 * 1024) #define STACKSIZE (8 * 1024 * 1024)
@ -102,8 +103,6 @@ static void setup_env_path(void)
} }
} }
extern void scan_elf_aux( char **envp);
int __init main(int argc, char **argv, char **envp) int __init main(int argc, char **argv, char **envp)
{ {
char **new_argv; char **new_argv;

1
arch/um/os-Linux/mem.c
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@ -17,6 +17,7 @@
#include <init.h> #include <init.h>
#include <kern_util.h> #include <kern_util.h>
#include <os.h> #include <os.h>
#include "internal.h"
/* /*
* kasan_map_memory - maps memory from @start with a size of @len. * kasan_map_memory - maps memory from @start with a size of @len.

3
arch/um/os-Linux/skas/mem.c
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@ -17,11 +17,10 @@
#include <skas.h> #include <skas.h>
#include <sysdep/ptrace.h> #include <sysdep/ptrace.h>
#include <sysdep/stub.h> #include <sysdep/stub.h>
#include "../internal.h"
extern char batch_syscall_stub[], __syscall_stub_start[]; extern char batch_syscall_stub[], __syscall_stub_start[];
extern void wait_stub_done(int pid);
static inline unsigned long *check_init_stack(struct mm_id * mm_idp, static inline unsigned long *check_init_stack(struct mm_id * mm_idp,
unsigned long *stack) unsigned long *stack)
{ {

1
arch/um/os-Linux/skas/process.c
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@ -23,6 +23,7 @@
#include <skas.h> #include <skas.h>
#include <sysdep/stub.h> #include <sysdep/stub.h>
#include <linux/threads.h> #include <linux/threads.h>
#include "../internal.h"
int is_skas_winch(int pid, int fd, void *data) int is_skas_winch(int pid, int fd, void *data)
{ {

3
arch/um/os-Linux/start_up.c
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@ -25,6 +25,7 @@
#include <ptrace_user.h> #include <ptrace_user.h>
#include <registers.h> #include <registers.h>
#include <skas.h> #include <skas.h>
#include "internal.h"
static void ptrace_child(void) static void ptrace_child(void)
{ {
@ -222,8 +223,6 @@ static void __init check_ptrace(void)
check_sysemu(); check_sysemu();
} }
extern void check_tmpexec(void);
static void __init check_coredump_limit(void) static void __init check_coredump_limit(void)
{ {
struct rlimit lim; struct rlimit lim;