darkkirb/old-cross-binutils
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Set unknown_syscall differently on arm linux

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Currently, we use 123456789 as unknown or illegal syscall number, and
expect program return ENOSYS.  Although 123456789 is an illegal syscall
number on arm linux, kernel sends SIGILL rather than returns -ENOSYS.
However, arm linux kernel returns -ENOSYS if syscall number is within
0xf0001..0xf07ff, so we can use 0xf07ff for unknown_syscall in test.

gdb/testsuite:

2016-06-29  Yao Qi  <yao.qi@linaro.org>

	* gdb.base/catch-syscall.c [__arm__]: Set unknown_syscall to
	0x0f07ff.
This commit is contained in:
Yao Qi 2016-06-29 14:51:41 +01:00
parent 042c94de56
commit 28244707d9
2 changed files with 13 additions and 0 deletions
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5
gdb/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-06-29 Yao Qi <yao.qi@linaro.org>
* gdb.base/catch-syscall.c [__arm__]: Set unknown_syscall to
0x0f07ff.
2016-06-28 Yao Qi <yao.qi@linaro.org>
* gdb.base/catch-syscall.exp: Remove check on isnative and target

8
gdb/testsuite/gdb.base/catch-syscall.c
View file

@ -28,7 +28,15 @@ int pipe_syscall = SYS_pipe;
int pipe2_syscall = SYS_pipe2;
#endif
int write_syscall = SYS_write;
#if defined(__arm__)
/* Although 123456789 is an illegal syscall umber on arm linux, kernel
sends SIGILL rather than returns -ENOSYS. However, arm linux kernel
returns -ENOSYS if syscall number is within 0xf0001..0xf07ff, so we
can use 0xf07ff for unknown_syscall in test. */
int unknown_syscall = 0x0f07ff;
#else
int unknown_syscall = 123456789;
#endif
int exit_group_syscall = SYS_exit_group;
/* Set by the test when it wants execve. */