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authorPeter Maydell <peter.maydell@linaro.org>2016-06-06 19:58:18 +0100
committerRiku Voipio <riku.voipio@linaro.org>2016-06-08 12:06:57 +0300
commit7dcdaeafe07dd87079c4e073bced4cfc8bf5fdf3 (patch)
tree13676af7bd6175a7f3f9670e3e757c72ca946e75 /linux-user
parent8efb2ed5ec192f7e83c5e48753e695d5cbc161b2 (diff)
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linux-user: Make target_strerror() return 'const char *'
Make target_strerror() return 'const char *' rather than just 'char *'; this will allow us to return constant strings from it for some special cases. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/qemu.h2
-rw-r--r--linux-user/strace.c4
-rw-r--r--linux-user/syscall.c2
3 files changed, 4 insertions, 4 deletions
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 6bd7b3223a..56f29c35b5 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -195,7 +195,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
extern THREAD CPUState *thread_cpu;
void cpu_loop(CPUArchState *env);
-char *target_strerror(int err);
+const char *target_strerror(int err);
int get_osversion(void);
void init_qemu_uname_release(void);
void fork_start(void);
diff --git a/linux-user/strace.c b/linux-user/strace.c
index 0810c85fbd..c5980a128c 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -281,7 +281,7 @@ print_ipc(const struct syscallname *name,
static void
print_syscall_ret_addr(const struct syscallname *name, abi_long ret)
{
- char *errstr = NULL;
+ const char *errstr = NULL;
if (ret < 0) {
errstr = target_strerror(-ret);
@@ -1594,7 +1594,7 @@ void
print_syscall_ret(int num, abi_long ret)
{
int i;
- char *errstr = NULL;
+ const char *errstr = NULL;
for(i=0;i<nsyscalls;i++)
if( scnames[i].nr == num ) {
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 7b7bae6fda..262c645d3c 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -630,7 +630,7 @@ static inline int is_error(abi_long ret)
return (abi_ulong)ret >= (abi_ulong)(-4096);
}
-char *target_strerror(int err)
+const char *target_strerror(int err)
{
if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
return NULL;