undefined reference to `gettid' error

[akb2020]

I am getting 4 such errors when I run make after teh cmake command.

../qemu/riscv64-linux-user/linux-user/syscall.o: In function `clone_func':
/esesc/emul/qemu_riscv/linux-user/syscall.c:6359: undefined reference to `gettid'

Same error in function do_syscall line 11759, do_fork in lines 6508 and 6510.

Please tell me how to solve these errors.

[renau]

We have a patch in the internal repo. Mostly it is a change in libc

…

On Tue, Feb 18, 2020, 11:34 PM akb2020 ***@***.***> wrote: I am getting 4 such errors when I run make after teh cmake command. ../qemu/riscv64-linux-user/linux-user/syscall.o: In function `clone_func': /esesc/emul/qemu_riscv/linux-user/syscall.c:6359: undefined reference to `gettid' Same error in function do_syscall line 11759, do_fork in lines 6508 and 6510. Please tell me how to solve these errors. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#51?email_source=notifications&email_token=ABNIKNUSENEUS4ZRKRH3FTLRDTOHXA5CNFSM4KXTRGRKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4IORNHRQ>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABNIKNT47C7K3WLISBGPDYDRDTOHXANCNFSM4KXTRGRA> .

[akb2020]

I could not understand your answer. Please tell me what I need to do to solve these errors.

[renau]

There is an internal patch that address this, but still not pushed to esesc. You can apply this:

+++ b/emul/qemu_riscv/linux-user/syscall.c
@@ -256,17 +256,10 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
 #define TARGET_NR__llseek TARGET_NR_llseek
 #endif
 
-#ifdef __NR_gettid
-#ifndef SYS_gettid
-_syscall0(int, gettid)
-#endif
-#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)
+
 

[ShiXiongC]

在cmh命令后运行make时，出现4个此类错误。

../qemu/riscv64-linux-user/linux-user/syscall.o: In function `clone_func':
/esesc/emul/qemu_riscv/linux-user/syscall.c:6359: undefined reference to `gettid'

函数do_syscall行11759，do_fork行6508和6510中的错误相同。

请告诉我如何解决这些错误。

you can use syscall(__NR_gettid) to replaec gettid()