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Introduce current_lwp_ptid

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This commit introduces a new function, current_lwp_ptid, that
shared Linux code can use to obtain the ptid of the current
lightweight process.

gdb/ChangeLog:

	* nat/linux-nat.h (current_lwp_ptid): New declaration.
	* linux-nat.c (current_lwp_ptid): New function.
	* x86-linux-nat.c: Include nat/linux-nat.h.
	(x86_linux_dr_get_addr): Use current_lwp_ptid.
	(x86_linux_dr_get_control): Likewise.
	(x86_linux_dr_get_status): Likewise.
	(x86_linux_dr_set_control): Likewise.
	(x86_linux_dr_set_addr): Likewise.

gdb/gdbserver/ChangeLog:

	* linux-low.c (current_lwp_ptid): New function.
	* linux-x86-low.c: Include nat/linux-nat.h.
	(x86_dr_low_get_addr): Use current_lwp_ptid.
	(x86_dr_low_get_control): Likewise.
	(x86_dr_low_get_status): Likewise.
This commit is contained in:
Gary Benson
2015-03-24 14:05:43 +00:00
parent 1563054901
commit 7b6690874f
7 changed files with 53 additions and 14 deletions
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7
gdb/nat/linux-nat.h
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@@ -25,4 +25,11 @@
instead SIGTRAP with bit 7 set. */
#define SYSCALL_SIGTRAP (SIGTRAP | 0x80)
/* Return the ptid of the current lightweight process. With NPTL
threads and LWPs map 1:1, so this is equivalent to returning the
ptid of the current thread. This function must be provided by
the client. */
extern ptid_t current_lwp_ptid (void);
#endif /* LINUX_NAT_H */