This patch was taken from NixOS
https://raw.githubusercontent.com/Mindavi/nixpkgs/1a737743a829746e48f4869ac517ff29c23c9d09/pkgs/tools/security/afl/qemu-patches/syscall-glibc2_30.diff
It is based on an unmerged patch against american-fuzzy-lop and was
never merged upstream because the author was unable to sign Google's CLA.
Based on https://github.com/google/AFL/commit/6c917e3d63a2a0685d58c3518524f9615b001893.patch

--- qemu-2.10.0-clean/linux-user/syscall.c	2020-03-12 18:47:47.898592169 +0100
+++ qemu-2.10.0/linux-user/syscall.c	2020-03-13 09:13:42.461809699 +0100
@@ -34,6 +34,7 @@
 #include <sys/resource.h>
 #include <sys/swap.h>
 #include <linux/capability.h>
+#include <linux/sockios.h> // https://lkml.org/lkml/2019/6/3/988
 #include <sched.h>
 #include <sys/timex.h>
 #ifdef __ia64__
@@ -256,7 +257,9 @@ static type name (type1 arg1,type2 arg2,
 #endif
 
 #ifdef __NR_gettid
-_syscall0(int, gettid)
+// taken from https://patchwork.kernel.org/patch/10862231/
+#define __NR_sys_gettid __NR_gettid
+_syscall0(int, sys_gettid)
 #else
 /* This is a replacement for the host gettid() and must return a host
    errno. */
@@ -6219,7 +6222,7 @@ 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);
@@ -6363,9 +6366,9 @@ static int do_fork(CPUArchState *env, un
                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);
@@ -11402,7 +11405,7 @@ abi_long do_syscall(void *cpu_env, int n
         break;
 #endif
     case TARGET_NR_gettid:
-        ret = get_errno(gettid());
+        ret = get_errno(sys_gettid());
         break;
 #ifdef TARGET_NR_readahead
     case TARGET_NR_readahead:
m</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/system/image.scm?id=78d946b01162fbe986c6768800e8cfd6e70e67e5&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2024-05-22 11:15:29 +0800'>2024-05-22</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=e5078ff3210f4a9863b641a60430b2cb3c9c15ee'>image: Raise error when use both grub-efi* bootloader and not gpt image.</a><span class='msg-avail'>...</span></td><td>Zheng Junjie</td></tr>
<tr><td><span title='2024-02-10 23:21:07 +0100'>2024-02-10</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=9edbb2d7a40c9da7583a1046e39b87633459f656'>services: Add ‘virtual-build-machine’ service.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2024-01-17 11:17:59 +0100'>2024-01-17</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=21989dd57dac338899574d3ee7f093d633e31e33'>image: Consider grub-efi-removable-bootloader to be EFI bootloader.</a><span class='msg-avail'>...</span></td><td>Tomas Volf</td></tr>
<tr><td><span title='2024-01-08 21:22:44 +0300'>2024-01-08</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=519e1e3eb88ec532fc83ebb742d9919269b57c87'>scripts: system: Build layered images.</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2023-12-02 12:25:45 +0100'>2023-12-02</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=b0715d7cd2a74bc231751f8afc9dffb2047501ac'>gnu: Use ‘libc-utf8-locales-for-target’.</a><span class='msg-avail'>...</span></td><td>Janneke Nieuwenhuizen</td></tr>
<tr><td><span title='2023-10-01 22:18:52 +0200'>2023-10-01</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=dfaeaae9c7e7283b99ad10aef3e61402e9820bc7'>image: Product hybrid qcow2 images.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2023-09-20 09:38:40 +0200'>2023-09-20</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=6bd17a0806ad32d1493ac51a7443276f719c4224'>image: Do not allow BIOS bootloader and GPT.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2023-09-20 09:38:36 +0200'>2023-09-20</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=e5ed1712da049b1c3dcf01e0a7e02e48a8aff012'>image: Introduce the mbr-hybrid-raw image type.</a><span class='msg-avail'>...</span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2023-08-25 14:24:21 +0200'>2023-08-25</span></td><td><a href='/guix/commit/gnu/system/image.scm?id=d57cab764122af69d52d8cc9c843456044e5d7bc'>image: Add mbr-raw-image-type and use by default.</a><span class='msg-avail'>...</span></td><td>Josselin Poiret</td></tr>