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[GDBserver] Use regcache_read_pc in install_software_single_step_breakpoints

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In install_software_single_step_breakpoints, we've got the regcache
of current_thread, so we don't have to bother get_pc to get pc,
instead we can get pc from regcache directly.  Note that the callers
of install_software_single_step_breakpoints have already switched
current_thread to LWP.

Since the pc is got from regcache_read_pc, in the next patch, we can
get pc inside the implementation of *the_low_target.get_next_pcs and
stop passing pc to *the_low_target.get_next_pcs.

gdb/gdbserver:

2016-01-26  Yao Qi  <yao.qi@linaro.org>

	* linux-low.c (install_software_single_step_breakpoints): Call
	regcache_read_pc instead of get_pc.
This commit is contained in:
Yao Qi 2016-01-26 14:08:26 +00:00
parent 8b20733984
commit d80209703e
2 changed files with 7 additions and 1 deletions
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5
gdb/gdbserver/ChangeLog
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@ -1,3 +1,8 @@
2016-01-26 Yao Qi <yao.qi@linaro.org>
* linux-low.c (install_software_single_step_breakpoints): Call
regcache_read_pc instead of get_pc.
2016-01-26 Yao Qi <yao.qi@linaro.org>
* remote-utils.c (remote_close) [!USE_WIN32API]: Ignore SIGIO.

3
gdb/gdbserver/linux-low.c
View File

@ -4103,7 +4103,8 @@ install_software_single_step_breakpoints (struct lwp_info *lwp)
VEC (CORE_ADDR) *next_pcs = NULL;
struct cleanup *old_chain = make_cleanup (VEC_cleanup (CORE_ADDR), &next_pcs);
pc = get_pc (lwp);
pc = regcache_read_pc (regcache);
next_pcs = (*the_low_target.get_next_pcs) (pc, regcache);
for (i = 0; VEC_iterate (CORE_ADDR, next_pcs, i, pc); ++i)