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Yao Qi ef713951c5 [arm] Fix displaced stepping for thumb alu reg instruction
Recent patch series "V2 All-stop on top of non-stop" causes a SIGSEGV
in the test case,

> -PASS: gdb.base/info-shared.exp: continue to breakpoint: library function #4
> +FAIL: gdb.base/info-shared.exp: continue to breakpoint: library function #4
>
> continue^M
> Continuing.^M
> ^M
> Program received signal SIGSEGV, Segmentation fault.^M
> 0x40021564 in ?? () gdb/testsuite/gdb.base/info-shared-solib1.so^M
> (gdb) FAIL: gdb.base/info-shared.exp: continue to breakpoint: library function #4

and an ARM displaced stepping bug is exposed.  It can be reproduced by
the modified gdb.arch/arm-disp-step.exp as below,

continue^M
Continuing.^M
^M
Program received signal SIGSEGV, Segmentation fault.^M
0xa713cfcc in ?? ()^M
(gdb) FAIL: gdb.arch/arm-disp-step.exp: continue to breakpoint: continue to test_add_rn_pc_end

This patch is to fix it.

gdb:

2015-04-10  Yao Qi  <yao.qi@linaro.org>

	* arm-tdep.c (install_alu_reg): Update comment.
	(thumb_copy_alu_reg): Remove local variable rn.  Update
	debugging message.  Use r2 instead of r1 in the modified
	instruction.

gdb/testsuite:

2015-04-10  Yao Qi  <yao.qi@linaro.org>

	* gdb.arch/arm-disp-step.S (main): Call test_add_rn_pc.
	(test_add_rn_pc): New function.
	* gdb.arch/arm-disp-step.exp (test_add_rn_pc): New proc.
	(top level): Invoke test_add_rn_pc.
2015-04-10 10:33:01 +01:00
bfd Automatic date update in version.in 2015-04-10 00:00:08 +00:00
binutils Properly check --compress-debug-sections=XXX 2015-04-09 10:56:28 -07:00
config Set zlibdir/zlibinc with top_builddir/top_srcdir 2015-04-02 05:43:07 -07:00
cpu
elfcpp Add chdr_size, Chdr, Chdr_write and Chdr_data 2015-04-08 10:29:40 -07:00
etc
gas Add documentation about the interation of the ARM assembler's -EB option and the linker's --be8 option. 2015-04-10 08:26:07 +01:00
gdb [arm] Fix displaced stepping for thumb alu reg instruction 2015-04-10 10:33:01 +01:00
gold Allow gold to resolve defined TLS symbols in a PIE link. 2015-04-09 15:47:37 -07:00
gprof
include Add support to the RX toolchain to restrict the use of string instructions. 2015-04-09 12:48:37 +01:00
intl
ld Correct setting of elf_list_options 2015-04-10 18:22:50 +09:30
libdecnumber
libiberty
opcodes x86: Use individual prefix control for each opcode. 2015-04-06 19:33:01 +03:00
readline
sim sim: move sim-engine.o/sim-hrw.o to the common list 2015-04-06 23:56:47 -04:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
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