meta-openembedded/meta-oe/recipes-support/liburing/liburing/0001-tests-fix-portability-issue-when-using-__NR_mmap-sys.patch

From 2d3940163e14d183fddc4d8b24cc1d3865bba0b3 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 5 May 2021 09:36:36 -0700
Subject: [PATCH] tests: fix portability issue when using __NR_mmap syscall

On some architectures e.g. ARM and RISCV32, __NR_mmap does not exist and
libc will then use NR_mmap2 to implement mmap() API, therefore use
system C library mmap() API instead of calling the syscall directly

Upstream-Status: Partial Backport [https://github.com/axboe/liburing/commit/808b6c72ab753bda0c300b5683cfd31750d1d49b]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 test/double-poll-crash.c   | 6 +++---
 test/sqpoll-disable-exit.c | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/test/double-poll-crash.c b/test/double-poll-crash.c
index 1a219c7..6e08285 100644
--- a/test/double-poll-crash.c
+++ b/test/double-poll-crash.c
@@ -150,9 +150,9 @@ int main(int argc, char *argv[])
   if (argc > 1)
     return 0;
 
-  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
-  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
-  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
+  mmap((void *) 0x1ffff000, (size_t) 0x1000, PROT_NONE, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
+  mmap((void *) 0x20000000, (size_t) 0x1000000,  PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
+  mmap((void *) 0x21000000, (size_t) 0x1000, PROT_NONE, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
   intptr_t res = 0;
   *(uint32_t*)0x20000484 = 0;
   *(uint32_t*)0x20000488 = 0;
diff --git a/test/sqpoll-disable-exit.c b/test/sqpoll-disable-exit.c
index d4e17f8..a0d00cc 100644
--- a/test/sqpoll-disable-exit.c
+++ b/test/sqpoll-disable-exit.c
@@ -223,9 +223,9 @@ void execute_one(void)
 }
 int main(void)
 {
-  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
-  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
-  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
+  mmap((void *) 0x1ffff000, (size_t) 0x1000, PROT_NONE, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
+  mmap((void *) 0x20000000, (size_t) 0x1000000,  PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
+  mmap((void *) 0x21000000, (size_t) 0x1000, PROT_NONE, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
   loop();
   return 0;
 }
-- 
2.31.1