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* linux-nat.c (linux_nat_do_thread_registers): Use section size

Browse source 
from gdbarch_core_regset_sections also for .reg if present.

	* amd64-linux-tdep.c (amd64_linux_regset_sections): Fix incorrect
	section size for .reg.
	* ppc-linux-tdep.c (ppc_linux_vsx_regset_sections): Likewise.
	(ppc_linux_vmx_regset_sections): Likewise.
	(ppc_linux_fp_regset_sections): Likewise.
	(ppc64_linux_vsx_regset_sections): New variable.
	(ppc64_linux_vmx_regset_sections): Likewise.
	(ppc64_linux_fp_regset_sections): Likewise.
	(ppc_linux_init_abi): Install core_regset_section lists appropriate
	for current word size.
This commit is contained in:
Ulrich Weigand 2010-07-07 12:28:32 +00:00
parent 9176f4dfdc
commit 2f2241f146
4 changed files with 98 additions and 43 deletions
Download patch file Download diff file Expand all files Collapse all files

16
gdb/ChangeLog
View file

@ -1,3 +1,19 @@
2010-07-07 Ulrich Weigand <uweigand@de.ibm.com>
* linux-nat.c (linux_nat_do_thread_registers): Use section size
from gdbarch_core_regset_sections also for .reg if present.
* amd64-linux-tdep.c (amd64_linux_regset_sections): Fix incorrect
section size for .reg.
* ppc-linux-tdep.c (ppc_linux_vsx_regset_sections): Likewise.
(ppc_linux_vmx_regset_sections): Likewise.
(ppc_linux_fp_regset_sections): Likewise.
(ppc64_linux_vsx_regset_sections): New variable.
(ppc64_linux_vmx_regset_sections): Likewise.
(ppc64_linux_fp_regset_sections): Likewise.
(ppc_linux_init_abi): Install core_regset_section lists appropriate
for current word size.
2010-07-06 Joel Brobecker <brobecker@adacore.com>
* server.c (myresume): Make static.

2
gdb/amd64-linux-tdep.c
View file

@ -52,7 +52,7 @@
/* Supported register note sections. */
static struct core_regset_section amd64_linux_regset_sections[] =
{
{ ".reg", 144, "general-purpose" },
{ ".reg", 27 * 8, "general-purpose" },
{ ".reg2", 512, "floating-point" },
{ ".reg-xstate", I386_XSTATE_MAX_SIZE, "XSAVE extended state" },
{ NULL, 0 }

57
gdb/linux-nat.c
View file

@ -4134,8 +4134,6 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
char *note_data, int *note_size,
enum target_signal stop_signal)
{
gdb_gregset_t gregs;
gdb_fpregset_t fpregs;
unsigned long lwp = ptid_get_lwp (ptid);
struct gdbarch *gdbarch = target_gdbarch;
struct regcache *regcache = get_thread_arch_regcache (ptid, gdbarch);
@ -4153,21 +4151,6 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
core_regset_p = gdbarch_regset_from_core_section_p (gdbarch);
sect_list = gdbarch_core_regset_sections (gdbarch);
if (core_regset_p
&& (regset = gdbarch_regset_from_core_section (gdbarch, ".reg",
sizeof (gregs))) != NULL
&& regset->collect_regset != NULL)
regset->collect_regset (regset, regcache, -1,
&gregs, sizeof (gregs));
else
fill_gregset (regcache, &gregs, -1);
note_data = (char *) elfcore_write_prstatus (obfd,
note_data,
note_size,
lwp,
stop_signal, &gregs);
/* The loop below uses the new struct core_regset_section, which stores
the supported section names and sizes for the core file. Note that
note PRSTATUS needs to be treated specially. But the other notes are
@ -4175,12 +4158,6 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
if (core_regset_p && sect_list != NULL)
while (sect_list->sect_name != NULL)
{
/* .reg was already handled above. */
if (strcmp (sect_list->sect_name, ".reg") == 0)
{
sect_list++;
continue;
}
regset = gdbarch_regset_from_core_section (gdbarch,
sect_list->sect_name,
sect_list->size);
@ -4188,12 +4165,16 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
gdb_regset = xmalloc (sect_list->size);
regset->collect_regset (regset, regcache, -1,
gdb_regset, sect_list->size);
note_data = (char *) elfcore_write_register_note (obfd,
note_data,
note_size,
sect_list->sect_name,
gdb_regset,
sect_list->size);
if (strcmp (sect_list->sect_name, ".reg") == 0)
note_data = (char *) elfcore_write_prstatus
(obfd, note_data, note_size,
lwp, stop_signal, gdb_regset);
else
note_data = (char *) elfcore_write_register_note
(obfd, note_data, note_size,
sect_list->sect_name, gdb_regset,
sect_list->size);
xfree (gdb_regset);
sect_list++;
}
@ -4203,6 +4184,24 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
the new support, the code below should be deleted. */
else
{
gdb_gregset_t gregs;
gdb_fpregset_t fpregs;
if (core_regset_p
&& (regset = gdbarch_regset_from_core_section (gdbarch, ".reg",
sizeof (gregs))) != NULL
&& regset->collect_regset != NULL)
regset->collect_regset (regset, regcache, -1,
&gregs, sizeof (gregs));
else
fill_gregset (regcache, &gregs, -1);
note_data = (char *) elfcore_write_prstatus (obfd,
note_data,
note_size,
lwp,
stop_signal, &gregs);
if (core_regset_p
&& (regset = gdbarch_regset_from_core_section (gdbarch, ".reg2",
sizeof (fpregs))) != NULL

66
gdb/ppc-linux-tdep.c
View file

@ -516,7 +516,7 @@ ppc64_standard_linkage1_target (struct frame_info *frame,
static struct core_regset_section ppc_linux_vsx_regset_sections[] =
{
{ ".reg", 268, "general-purpose" },
{ ".reg", 48 * 4, "general-purpose" },
{ ".reg2", 264, "floating-point" },
{ ".reg-ppc-vmx", 544, "ppc Altivec" },
{ ".reg-ppc-vsx", 256, "POWER7 VSX" },
@ -525,7 +525,7 @@ static struct core_regset_section ppc_linux_vsx_regset_sections[] =
static struct core_regset_section ppc_linux_vmx_regset_sections[] =
{
{ ".reg", 268, "general-purpose" },
{ ".reg", 48 * 4, "general-purpose" },
{ ".reg2", 264, "floating-point" },
{ ".reg-ppc-vmx", 544, "ppc Altivec" },
{ NULL, 0}
@ -533,7 +533,31 @@ static struct core_regset_section ppc_linux_vmx_regset_sections[] =
static struct core_regset_section ppc_linux_fp_regset_sections[] =
{
{ ".reg", 268, "general-purpose" },
{ ".reg", 48 * 4, "general-purpose" },
{ ".reg2", 264, "floating-point" },
{ NULL, 0}
};
static struct core_regset_section ppc64_linux_vsx_regset_sections[] =
{
{ ".reg", 48 * 8, "general-purpose" },
{ ".reg2", 264, "floating-point" },
{ ".reg-ppc-vmx", 544, "ppc Altivec" },
{ ".reg-ppc-vsx", 256, "POWER7 VSX" },
{ NULL, 0}
};
static struct core_regset_section ppc64_linux_vmx_regset_sections[] =
{
{ ".reg", 48 * 8, "general-purpose" },
{ ".reg2", 264, "floating-point" },
{ ".reg-ppc-vmx", 544, "ppc Altivec" },
{ NULL, 0}
};
static struct core_regset_section ppc64_linux_fp_regset_sections[] =
{
{ ".reg", 48 * 8, "general-purpose" },
{ ".reg2", 264, "floating-point" },
{ NULL, 0}
};
@ -1507,6 +1531,19 @@ ppc_linux_init_abi (struct gdbarch_info info,
set_gdbarch_gcore_bfd_target (gdbarch, "elf32-powerpcle");
else
set_gdbarch_gcore_bfd_target (gdbarch, "elf32-powerpc");
/* Supported register sections. */
if (tdesc_find_feature (info.target_desc,
"org.gnu.gdb.power.vsx"))
set_gdbarch_core_regset_sections (gdbarch,
ppc_linux_vsx_regset_sections);
else if (tdesc_find_feature (info.target_desc,
"org.gnu.gdb.power.altivec"))
set_gdbarch_core_regset_sections (gdbarch,
ppc_linux_vmx_regset_sections);
else
set_gdbarch_core_regset_sections (gdbarch,
ppc_linux_fp_regset_sections);
}
if (tdep->wordsize == 8)
@ -1533,20 +1570,23 @@ ppc_linux_init_abi (struct gdbarch_info info,
set_gdbarch_gcore_bfd_target (gdbarch, "elf64-powerpcle");
else
set_gdbarch_gcore_bfd_target (gdbarch, "elf64-powerpc");
/* Supported register sections. */
if (tdesc_find_feature (info.target_desc,
"org.gnu.gdb.power.vsx"))
set_gdbarch_core_regset_sections (gdbarch,
ppc64_linux_vsx_regset_sections);
else if (tdesc_find_feature (info.target_desc,
"org.gnu.gdb.power.altivec"))
set_gdbarch_core_regset_sections (gdbarch,
ppc64_linux_vmx_regset_sections);
else
set_gdbarch_core_regset_sections (gdbarch,
ppc64_linux_fp_regset_sections);
}
set_gdbarch_regset_from_core_section (gdbarch, ppc_linux_regset_from_core_section);
set_gdbarch_core_read_description (gdbarch, ppc_linux_core_read_description);
/* Supported register sections. */
if (tdesc_find_feature (info.target_desc,
"org.gnu.gdb.power.vsx"))
set_gdbarch_core_regset_sections (gdbarch, ppc_linux_vsx_regset_sections);
else if (tdesc_find_feature (info.target_desc,
"org.gnu.gdb.power.altivec"))
set_gdbarch_core_regset_sections (gdbarch, ppc_linux_vmx_regset_sections);
else
set_gdbarch_core_regset_sections (gdbarch, ppc_linux_fp_regset_sections);
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);