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darwin: Silence syscall deprecated declaration warning

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This patch silences this warning:

/Users/simark/src/binutils-gdb/gdb/darwin-nat.c:839:10: error: 'syscall' is deprecated: first deprecated in macOS 10.12 - syscall(2) is unsupported; please switch to a supported interface. For SYS_kdebug_trace use kdebug_signpost(). [-Werror,-Wdeprecated-declarations]
          res = syscall (SYS___pthread_kill, thread->gdb_port, nsignal);
                ^
/usr/include/unistd.h:745:6: note: 'syscall' has been explicitly marked deprecated here
int      syscall(int, ...);
         ^

The comment of the new pthread_kill function explains why we use the
syscall function directly.

include/ChangeLog:

	* diagnostics.h (DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS):
	Define for clang.

gdb/ChangeLog:

	* darwin-nat.c (darwin_pthread_kill): New function.
	(darwin_resume_thread): Use darwin_pthread_kill.
This commit is contained in:
Simon Marchi
2018-07-05 21:50:12 -04:00
parent bb11866d6a
commit 6821842f15
4 changed files with 34 additions and 7 deletions
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6
include/diagnostics.h
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@ -35,6 +35,8 @@
#if defined (__clang__) /* clang */
# define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move")
# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \
DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations")
# define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
DIAGNOSTIC_IGNORE ("-Wdeprecated-register")
# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \
@ -56,6 +58,10 @@
# define DIAGNOSTIC_IGNORE_SELF_MOVE
#endif
#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
#endif
#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
# define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
#endif