add gitlab issues in toml format

1 files changed, 61 insertions, 0 deletions

diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/1760.toml b/gitlab/issues/target_missing/host_missing/accel_missing/1760.toml
new file mode 100644
index 00000000..44aa5113
--- /dev/null
+++ b/gitlab/issues/target_missing/host_missing/accel_missing/1760.toml
@@ -0,0 +1,61 @@
+id = 1760
+title = "qemu8-i386 gets wrong arguments for 32-bit old mmap syscall (_NR_mmap = 90)"
+state = "closed"
+created_at = "2023-07-12T18:40:17.467Z"
+closed_at = "2023-08-05T21:22:39.184Z"
+labels = []
+url = "https://gitlab.com/qemu-project/qemu/-/issues/1760"
+host-os = "Fedora 36"
+host-arch = "x86_64"
+qemu-version = "commit fcb237e64f9d026c03d635579c7b288d0008a6e5 (HEAD -> master, origin/master, origin/HEAD)"
+guest-os = "Fedora 36"
+guest-arch = "i686"
+description = """qemu8-i386 does not decode syscall arguments correctly for system call _NR_mmap = 90 on i386.
+```
+$ strace ./oldmmap
+execve("./oldmmap", ["./oldmmap"], 0x7fff46ba6d40 /* 61 vars */) = 0
+[ Process PID=405233 runs in 32 bit mode. ]
+mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xf7fa7000
+exit(5)                                 = ?
++++ exited with 5 +++
+
+$ build/qemu-i386 -strace ./oldmmap
+405254 mmap(0x40800058,0,PROT_NONE,0,0,0) = 0x3fffb000
+405254 exit(5)
+```"""
+reproduce = """1. gcc -m32 -o oldmmap -nostartfiles -nostdlib oldmmap.S  # build 32-bit executable
+2. strace ./oldmmap  # run under strace
+3. build/qemu-i386 -strace ./oldmmap  # run under "qemu-i386 -strace"
+4. Notice that qemu-i386 did not report the same arguments to the _NR_map syscall as /usr/bin/strace did."""
+additional = """```
+$ cat oldmmap.S
+MAP_FIXED=     0x10
+MAP_PRIVATE=   0x02
+MAP_ANONYMOUS= 0x20
+
+PROT_READ=      1
+PROT_WRITE=     2
+PROT_EXEC=      4
+
+_NR_exit = 1
+_NR_mmap = 90  // oldmmap: %ebx -> array of 6 arguments
+
+    .globl _start
+_start:
+    push $0  // offset
+    push $-1  // fd
+    push $MAP_PRIVATE|MAP_ANONYMOUS  // flags
+    push $PROT_READ|PROT_WRITE  // protection
+    push $2<<12  // length
+    push $0  // addr (kernel chooses)
+    mov %esp,%ebx
+    mov $_NR_mmap,%eax
+    int $0x80
+    nop
+
+    mov $5,%ebx
+    mov $_NR_exit,%eax
+    int $0x80
+    hlt
+$ 
+```"""