Test 25, 28 and 40 fail on Debian Jessie and Buster

[elboulangero]

The following tests fail on Debian Jessie (8) and Debian Buster (10). All tests pass on Debian Stretch (9).

The following tests FAILED:
	 25 - fork_logging (Failed)
	 28 - hook_clone (Failed)
	 40 - syscall_format_logging (Failed)

Note that the failure in the last test could be related to the commit I submitted to fix the build
bb10939

However this test already failed on Debian Buster before this commit, so... Maybe not related.

[marcinslusarz]

ctest --output-on-failure will tell you why it failed.

[GBuella]

#78

@elboulangero Could you try this branch:
https://github.com/GBuella/syscall_intercept/tree/syscall_format_fix

I'm still interested in what ctest --output-on-failure says about the other two, fork_logging and hook_clone.

[elboulangero]

Hi @GBuella,

here comes more details of build and test on Debian Jessie.

I've been using your branch syscall_format_fix, and the test number 40 succeeds now.

# gcc --version
gcc (Debian 4.9.2-10) 4.9.2
# dpkg -l | grep "libc-dev"
ii  libc-dev-bin                   2.19-18+deb8u10
ii  linux-libc-dev:amd64           3.16.51-2

# mkdir _build && cd _build
# cmake ..
# make
# ctest --output-on-failure

      Start 25: fork_logging
25/40 Test #25: fork_logging ...........................***Failed    0.19 sec
Executing: LD_PRELOAD=/usr/src/syscall_intercept.gbuella/_build/libsyscall_intercept.so.0.1.0
		INTERCEPT_ALL_OBJS=1
		/usr/src/syscall_intercept.gbuella/_build/test/fork_logging /usr/src/syscall_intercept.gbuella/test/fork_logging.c .log.logging .log.2.logging
//*/*

Done being busy here
//*/*

Done being busy here
[MATCHING FAILED, COMPLETE FILE (.log.logging) BELOW]
/lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = 27187
/lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27187
/lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = 5
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffc86d25910) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffc86d25910) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = 0x00007feaf8498000
/lib/x86_64-linux-gnu/libc.so.6 0xdbb9e -- read(5, 0x00007feaf8498000, 4096) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbb9e -- read(5, "/*\n * Copyright 2016-2017, Intel Corporation\n *\n * Redistribution and use in source and binary forms, with or without\n...", 4096) = 2828
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(1, 0x00007ffc86d258f0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(1, 0x00007ffc86d258f0) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = 0x00007feaf8497000
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/", 1) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/", 1) = 1
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*", 2) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*", 2) = 2
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*\n", 3) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*\n", 3) = 3
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "\n", 1) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "\n", 1) = 1
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "Done being busy here\n", 21) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "Done being busy here\n", 21) = 21
/lib/x86_64-linux-gnu/libc.so.6 0xdc1be -- close(5) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdc1be -- close(5) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xe4755 -- munmap(0x00007feaf8498000, 0x1000) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xe4755 -- munmap(0x00007feaf8498000, 0x1000) = 0

[EOF]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:1   $(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = ?
.log.logging:1         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:2   $(OPT)$(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = 0
.log.logging:2         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = 27187
.log.logging:2        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:3   $(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = $(N)
.log.logging:2         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = 27187
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:4   $(OPT)$(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = 0
.log.logging:3         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = ?
.log.logging:3        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:5   $(S) $(XX) -- wait4(-1, 0x0, 0x0, 0x0) = ?
.log.logging:3         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:6   $(OPT)$(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = 0
.log.logging:4         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007feaf84949d0, 0x0) = 0
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:7   $(OPT)$(S) $(XX) -- set_robust_list($(XX), $(N)) = ?
.log.logging:5         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27187
.log.logging:5        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:8   $(OPT)$(S) $(XX) -- set_robust_list($(XX), $(N)) = $(N)
.log.logging:5         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27187
.log.logging:5        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:9   $(S) $(XX) -- wait4(-1, 0x0, 0x0, 0x0) = $(N)
.log.logging:5         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27187
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:10  $(OPT)$(S) $(XX) -- open($(S), O_RDONLY) = ?
.log.logging:6         /lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:11  $(OPT)$(S) $(XX) -- open($(S), O_RDONLY) = $(N)
.log.logging:7         /lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = 5
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:12  $(OPT)$(S) $(XX) -- openat(AT_FDCWD, $(S), O_RDONLY) = ?
.log.logging:8         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffc86d25910) = ?
.log.logging:8        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:13  $(OPT)$(S) $(XX) -- openat(AT_FDCWD, $(S), O_RDONLY) = $(N)
.log.logging:8         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffc86d25910) = ?
.log.logging:8        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:14  $(S) $(XX) -- fstat($(N), $(XX)) = ?
.log.logging:8         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffc86d25910) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:15  $(S) $(XX) -- fstat($(N), $(XX)) = 0
.log.logging:9         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffc86d25910) = 0
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:16  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = ?
.log.logging:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.logging:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:17  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = $(N)
.log.logging:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.logging:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:18  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = ?
.log.logging:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.logging:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:19  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = $(N)
.log.logging:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.logging:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:20  $(S) $(XX) -- read($(N), $(XX), $(N)) = ?
.log.logging:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
FAIL: match.pl: /usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:20 did not match pattern
CMake Error at /usr/src/syscall_intercept.gbuella/test/check_log.cmake:82 (message):
  Log does not match! 255

      Start 28: hook_clone
28/40 Test #28: hook_clone .............................***Failed    0.17 sec
Executing: LD_PRELOAD=/usr/src/syscall_intercept.gbuella/_build/test/libhook_test_clone_preload.so
		INTERCEPT_ALL_OBJS=1
		/usr/src/syscall_intercept.gbuella/_build/test/fork_logging /usr/src/syscall_intercept.gbuella/test/fork_logging.c .log.hook_clone .log.2.hook_clone
//*/*

Done being busy here
//*/*

Done being busy here
[MATCHING FAILED, COMPLETE FILE (.log.hook_clone) BELOW]
/lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = 27201
/lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27201
/lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = 5
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffee181e3d0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffee181e3d0) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = 0x00007f66c2b57000
/lib/x86_64-linux-gnu/libc.so.6 0xdbb9e -- read(5, 0x00007f66c2b57000, 4096) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbb9e -- read(5, "/*\n * Copyright 2016-2017, Intel Corporation\n *\n * Redistribution and use in source and binary forms, with or without\n...", 4096) = 2828
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(1, 0x00007ffee181e3b0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(1, 0x00007ffee181e3b0) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = 0x00007f66c2aca000
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/", 1) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/", 1) = 1
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*", 2) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*", 2) = 2
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*\n", 3) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "/*\n", 3) = 3
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "\n", 1) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "\n", 1) = 1
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "Done being busy here\n", 21) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdbbfe -- write(1, "Done being busy here\n", 21) = 21
/lib/x86_64-linux-gnu/libc.so.6 0xdc1be -- close(5) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xdc1be -- close(5) = 0
/lib/x86_64-linux-gnu/libc.so.6 0xe4755 -- munmap(0x00007f66c2b57000, 0x1000) = ?
/lib/x86_64-linux-gnu/libc.so.6 0xe4755 -- munmap(0x00007f66c2b57000, 0x1000) = 0

[EOF]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:1   $(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = ?
.log.hook_clone:1         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:2   $(OPT)$(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = 0
.log.hook_clone:2         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = 27201
.log.hook_clone:2        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:3   $(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = $(N)
.log.hook_clone:2         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = 27201
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:4   $(OPT)$(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = 0
.log.hook_clone:3         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = ?
.log.hook_clone:3        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:5   $(S) $(XX) -- wait4(-1, 0x0, 0x0, 0x0) = ?
.log.hook_clone:3         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:6   $(OPT)$(S) $(XX) -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), $(XX), $(XX)) = 0
.log.hook_clone:4         /lib/x86_64-linux-gnu/libc.so.6 0xba012 -- clone(CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | 0x11, (null), (null), 0x00007f66c2b549d0, 0x0) = 0
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:7   $(OPT)$(S) $(XX) -- set_robust_list($(XX), $(N)) = ?
.log.hook_clone:5         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27201
.log.hook_clone:5        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:8   $(OPT)$(S) $(XX) -- set_robust_list($(XX), $(N)) = $(N)
.log.hook_clone:5         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27201
.log.hook_clone:5        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:9   $(S) $(XX) -- wait4(-1, 0x0, 0x0, 0x0) = $(N)
.log.hook_clone:5         /lib/x86_64-linux-gnu/libc.so.6 0xb9ab0 -- wait4(-1, 0x0, 0x0, 0x0) = 27201
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:10  $(OPT)$(S) $(XX) -- open($(S), O_RDONLY) = ?
.log.hook_clone:6         /lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:11  $(OPT)$(S) $(XX) -- open($(S), O_RDONLY) = $(N)
.log.hook_clone:7         /lib/x86_64-linux-gnu/libc.so.6 0xdb95e -- open("/usr/src/syscall_intercept.gbuella/test/fork_logging.c", O_RDONLY) = 5
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:12  $(OPT)$(S) $(XX) -- openat(AT_FDCWD, $(S), O_RDONLY) = ?
.log.hook_clone:8         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffee181e3d0) = ?
.log.hook_clone:8        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:13  $(OPT)$(S) $(XX) -- openat(AT_FDCWD, $(S), O_RDONLY) = $(N)
.log.hook_clone:8         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffee181e3d0) = ?
.log.hook_clone:8        [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:14  $(S) $(XX) -- fstat($(N), $(XX)) = ?
.log.hook_clone:8         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffee181e3d0) = ?
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:15  $(S) $(XX) -- fstat($(N), $(XX)) = 0
.log.hook_clone:9         /lib/x86_64-linux-gnu/libc.so.6 0xdb512 -- fstat(5, 0x00007ffee181e3d0) = 0
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:16  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = ?
.log.hook_clone:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.hook_clone:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:17  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = $(N)
.log.hook_clone:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.hook_clone:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:18  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = ?
.log.hook_clone:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.hook_clone:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:19  $(OPT)$(S) $(XX) -- mmap($(XX), $(N), $(N), $(N), $(N), $(XX)) = $(N)
.log.hook_clone:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
.log.hook_clone:10       [skipping optional line]
/usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:20  $(S) $(XX) -- read($(N), $(XX), $(N)) = ?
.log.hook_clone:10        /lib/x86_64-linux-gnu/libc.so.6 0xe4728 -- mmap((null), 0x1000, 0x3, 0x22, -1, 0x0) = ?
FAIL: match.pl: /usr/src/syscall_intercept.gbuella/test/libcintercept0.log.match:20 did not match pattern
CMake Error at /usr/src/syscall_intercept.gbuella/test/check_log.cmake:82 (message):
  Log does not match! 255

[GBuella]

I guess the matching script doesn't match "(null)" with "$(XX)".
We could add such lines to the match files as a quickfix for now:
$(OPT)$(S) $(XX) -- mmap((null), $(N), $(N), $(N), $(N), $(XX)) = ?

[marcinslusarz]

I think we should replace $(XX) with (null) wherever we expect null address.

Some time ago we used to print 0x0 instead of (null) for null pointers (see commit description of 2db5fa0 as an example). On newer distros there are no mmap calls in this workload, so we haven't noticed that in conversion to (null).