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authorPeter Maydell <peter.maydell@linaro.org>2019-04-09 10:02:30 +0100
committerPeter Maydell <peter.maydell@linaro.org>2019-04-09 10:02:30 +0100
commit248987f92cfda8305d6d44ced23e173e62a8bc0e (patch)
tree5fd40ea0a37052072d212b4ac4e927ed3744e331
parent7fe1427b5723583f55c753d5c75e23c93cc9a7e8 (diff)
parent71ba74f67eaca21b0cc9d96f534ad3b9a7161400 (diff)
Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-4.0-pull-request' into staging
fix gettid() clash with new glibc # gpg: Signature made Mon 08 Apr 2019 20:36:06 BST # gpg: using RSA key F30C38BD3F2FBE3C # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/linux-user-for-4.0-pull-request: linux-user: rename gettid() to sys_gettid() to avoid clash with glibc linux-user: assume __NR_gettid always exists Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--linux-user/syscall.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 208fd1813d..96cd4bf86d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -249,15 +249,8 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
#define TARGET_NR__llseek TARGET_NR_llseek
#endif
-#ifdef __NR_gettid
-_syscall0(int, gettid)
-#else
-/* This is a replacement for the host gettid() and must return a host
- errno. */
-static int gettid(void) {
- return -ENOSYS;
-}
-#endif
+#define __NR_sys_gettid __NR_gettid
+_syscall0(int, sys_gettid)
/* For the 64-bit guest on 32-bit host case we must emulate
* getdents using getdents64, because otherwise the host
@@ -5442,7 +5435,7 @@ static void *clone_func(void *arg)
cpu = ENV_GET_CPU(env);
thread_cpu = cpu;
ts = (TaskState *)cpu->opaque;
- info->tid = gettid();
+ info->tid = sys_gettid();
task_settid(ts);
if (info->child_tidptr)
put_user_u32(info->tid, info->child_tidptr);
@@ -5587,9 +5580,9 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
mapping. We can't repeat the spinlock hack used above because
the child process gets its own copy of the lock. */
if (flags & CLONE_CHILD_SETTID)
- put_user_u32(gettid(), child_tidptr);
+ put_user_u32(sys_gettid(), child_tidptr);
if (flags & CLONE_PARENT_SETTID)
- put_user_u32(gettid(), parent_tidptr);
+ put_user_u32(sys_gettid(), parent_tidptr);
ts = (TaskState *)cpu->opaque;
if (flags & CLONE_SETTLS)
cpu_set_tls (env, newtls);
@@ -10629,7 +10622,7 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
return TARGET_PAGE_SIZE;
#endif
case TARGET_NR_gettid:
- return get_errno(gettid());
+ return get_errno(sys_gettid());
#ifdef TARGET_NR_readahead
case TARGET_NR_readahead:
#if TARGET_ABI_BITS == 32