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gdbserver: xtensa: support THREADPTR register

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Provide aceess to the THREADPTR register to remote gdb.

gdb/gdbserver/
2017-03-27  Max Filippov  <jcmvbkbc@gmail.com>

	* linux-xtensa-low.c (regnum::R_THREADPTR): New enum member.
	(xtensa_fill_gregset): Call collect_register_by_name for
	threadptr register.
	(xtensa_store_gregset): Call supply_register_by_name for
	threadptr register.
This commit is contained in:
Max Filippov
2016-11-18 16:08:48 -08:00
parent f74f865e50
commit a12e714b77
2 changed files with 19 additions and 0 deletions
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8
gdb/gdbserver/ChangeLog
View File

@ -1,3 +1,11 @@
2017-03-27 Max Filippov <jcmvbkbc@gmail.com>
* linux-xtensa-low.c (regnum::R_THREADPTR): New enum member.
(xtensa_fill_gregset): Call collect_register_by_name for
threadptr register.
(xtensa_store_gregset): Call supply_register_by_name for
threadptr register.
2017-03-27 Max Filippov <jcmvbkbc@gmail.com> 2017-03-27 Max Filippov <jcmvbkbc@gmail.com>
* linux-xtensa-low.c (xtensa_fill_gregset): Call collect_register * linux-xtensa-low.c (xtensa_fill_gregset): Call collect_register

11
gdb/gdbserver/linux-xtensa-low.c
View File

@ -36,6 +36,7 @@ enum regnum {
R_LBEG, R_LEND, R_LCOUNT, R_LBEG, R_LEND, R_LCOUNT,
R_SAR, R_SAR,
R_WS, R_WB, R_WS, R_WB,
R_THREADPTR,
R_A0 = 64 R_A0 = 64
}; };
@ -86,6 +87,11 @@ xtensa_fill_gregset (struct regcache *regcache, void *buf)
collect_register_by_name (regcache, "ps", (char*)&rset[R_PS]); collect_register_by_name (regcache, "ps", (char*)&rset[R_PS]);
collect_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]); collect_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]);
collect_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]); collect_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]);
#if XCHAL_HAVE_THREADPTR
collect_register_by_name (regcache, "threadptr",
(char *) &rset[R_THREADPTR]);
#endif
} }
static void static void
@ -135,6 +141,11 @@ xtensa_store_gregset (struct regcache *regcache, const void *buf)
supply_register_by_name (regcache, "ps", (char*)&rset[R_PS]); supply_register_by_name (regcache, "ps", (char*)&rset[R_PS]);
supply_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]); supply_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]);
supply_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]); supply_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]);
#if XCHAL_HAVE_THREADPTR
supply_register_by_name (regcache, "threadptr",
(char *) &rset[R_THREADPTR]);
#endif
} }
/* Xtensa GNU/Linux PTRACE interface includes extended register set. */ /* Xtensa GNU/Linux PTRACE interface includes extended register set. */