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[PowerPC] Fix VSX registers in linux core files

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The functions used by the VSX regset to collect and supply registers
from core files where incorrect. This patch changes the regset to use
the standard regset collect/supply functions to fix this. The native
target is also changed to use the same regset.

gdb/ChangeLog:
2018-05-22  Pedro Franco de Carvalho  <pedromfc@linux.vnet.ibm.com>

	* ppc-linux-tdep.c (ppc_linux_vsxregset): New function.
	(ppc32_linux_vsxregmap): New global.
	(ppc32_linux_vsxregset): Initialize with ppc32_linux_vsxregmap,
	regcache_supply_regset, and regcache_collect_regset.
	* ppc-linux-tdep.h (ppc_linux_vsxregset): Declare.
	* ppc-linux-nat.c (supply_vsxregset, fill_vsxregset): Remove.
	(fetch_vsx_register, store_vsx_register): Remove.
	(fetch_vsx_registers): Add regno parameter. Get regset using
	ppc_linux_vsxregset. Use regset to supply registers.
	(store_vsx_registers): Add regno parameter. Get regset using
	ppc_linux_vsxregset. Use regset to collect registers.
	(fetch_register): Call fetch_vsx_registers instead of
	fetch_vsx_register.
	(store_register): Call store_vsx_registers instead of
	store_vsx_register.
	(fetch_ppc_registers): Call fetch_vsx_registers with -1 for the
	new regno parameter.
	(store_ppc_registers): Call store_vsx_registers with -1 for the
	new regno parameter.
	* rs6000-tdep.c (ppc_vsx_support_p, ppc_supply_vsxreget)
	(ppc_collect_vsxregset): Remove.

gdb/testsuite/ChangeLog:
2018-05-22  Pedro Franco de Carvalho  <pedromfc@linux.vnet.ibm.com>

	* gdb.arch/powerpc-vsx-gcore.exp: New file.
This commit is contained in:
Pedro Franco de Carvalho
2018-05-22 11:09:05 -03:00
parent 1d75a65809
commit 2c3305f6b0
7 changed files with 149 additions and 168 deletions
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1
gdb/ppc-linux-tdep.h
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@ -30,6 +30,7 @@ const struct regset *ppc_linux_fpregset (void);
/* Get the vector regset that matches the target byte order. */
const struct regset *ppc_linux_vrregset (struct gdbarch *gdbarch);
const struct regset *ppc_linux_vsxregset (void);
/* Extra register number constants. The Linux kernel stores a
"trap" code and the original value of r3 into special "registers";