58 lines
2.3 KiB
Diff
58 lines
2.3 KiB
Diff
This patch was taken from NixOS
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https://raw.githubusercontent.com/Mindavi/nixpkgs/1a737743a829746e48f4869ac517ff29c23c9d09/pkgs/tools/security/afl/qemu-patches/syscall-glibc2_30.diff
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It is based on an unmerged patch against american-fuzzy-lop and was
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never merged upstream because the author was unable to sign Google's CLA.
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Based on https://github.com/google/AFL/commit/6c917e3d63a2a0685d58c3518524f9615b001893.patch
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--- qemu-2.10.0-clean/linux-user/syscall.c 2020-03-12 18:47:47.898592169 +0100
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+++ qemu-2.10.0/linux-user/syscall.c 2020-03-13 09:13:42.461809699 +0100
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@@ -34,6 +34,7 @@
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#include <sys/resource.h>
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#include <sys/swap.h>
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#include <linux/capability.h>
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+#include <linux/sockios.h> // https://lkml.org/lkml/2019/6/3/988
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#include <sched.h>
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#include <sys/timex.h>
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#ifdef __ia64__
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@@ -256,7 +257,9 @@ static type name (type1 arg1,type2 arg2,
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#endif
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#ifdef __NR_gettid
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-_syscall0(int, gettid)
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+// taken from https://patchwork.kernel.org/patch/10862231/
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+#define __NR_sys_gettid __NR_gettid
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+_syscall0(int, sys_gettid)
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#else
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/* This is a replacement for the host gettid() and must return a host
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errno. */
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@@ -6219,7 +6222,7 @@ static void *clone_func(void *arg)
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cpu = ENV_GET_CPU(env);
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thread_cpu = cpu;
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ts = (TaskState *)cpu->opaque;
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- info->tid = gettid();
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+ info->tid = sys_gettid();
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task_settid(ts);
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if (info->child_tidptr)
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put_user_u32(info->tid, info->child_tidptr);
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@@ -6363,9 +6366,9 @@ static int do_fork(CPUArchState *env, un
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mapping. We can't repeat the spinlock hack used above because
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the child process gets its own copy of the lock. */
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if (flags & CLONE_CHILD_SETTID)
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- put_user_u32(gettid(), child_tidptr);
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+ put_user_u32(sys_gettid(), child_tidptr);
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if (flags & CLONE_PARENT_SETTID)
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- put_user_u32(gettid(), parent_tidptr);
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+ put_user_u32(sys_gettid(), parent_tidptr);
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ts = (TaskState *)cpu->opaque;
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if (flags & CLONE_SETTLS)
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cpu_set_tls (env, newtls);
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@@ -11402,7 +11405,7 @@ abi_long do_syscall(void *cpu_env, int n
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break;
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#endif
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case TARGET_NR_gettid:
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- ret = get_errno(gettid());
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+ ret = get_errno(sys_gettid());
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break;
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#ifdef TARGET_NR_readahead
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case TARGET_NR_readahead:
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