File crash-gdb-7.6-ppc64le.patch of Package crash.4081
From: Ulrich Weigand <uweigand@de.ibm.com>
References: ppc64le enablement
Patch-mainline: not yet
Signed-off-by: Ulrich Weigand <uweigand@de.ibm.com>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
---
gdb/auxv.c | 1
gdb/configure.host | 4
gdb/configure.tgt | 2
gdb/doublest.c | 49 +-
gdb/gdbarch.c | 33 +
gdb/gdbarch.h | 6
gdb/gdbarch.sh | 1
gdb/gdbtypes.c | 4
gdb/infrun.c | 4
gdb/ppc-linux-tdep.c | 60 ++-
gdb/ppc-sysv-tdep.c | 534 ++++++++++++++++++++++++---
gdb/ppc-tdep.h | 11
gdb/ppc64-tdep.c | 2
gdb/rs6000-tdep.c | 43 +-
gdb/symtab.c | 2
gdb/testsuite/gdb.arch/altivec-regs.exp | 2
gdb/testsuite/gdb.arch/powerpc-d128-regs.exp | 2
gdb/testsuite/gdb.arch/vsx-regs.exp | 39 +
gdb/testsuite/gdb.base/sigbpt.exp | 2
gdb/testsuite/gdb.base/step-bt.exp | 2
include/elf/common.h | 1
include/elf/ppc64.h | 54 ++
22 files changed, 752 insertions(+), 106 deletions(-)
--- a/gdb/ppc64-tdep.c
+++ b/gdb/ppc64-tdep.c
@@ -289,7 +289,7 @@ static struct ppc_insn_pattern ppc64_sta
static struct ppc_insn_pattern ppc64_standard_linkage7[] =
{
/* std r2, 24(r1) <optional> */
- { -1, insn_ds (62, 2, 1, 40, 0), 1 },
+ { -1, insn_ds (62, 2, 1, 24, 0), 1 },
/* ld r12, <any>(r2) */
{ insn_ds (-1, -1, -1, 0, -1), insn_ds (58, 12, 2, 0, 0), 0 },
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -48,6 +48,7 @@
#include "elf-bfd.h"
#include "elf/ppc.h"
+#include "elf/ppc64.h"
#include "solib-svr4.h"
#include "ppc-tdep.h"
@@ -2672,10 +2673,10 @@ dfp_pseudo_register_read (struct gdbarch
else
{
status = regcache_raw_read (regcache, tdep->ppc_fp0_regnum +
- 2 * reg_index + 1, buffer + 8);
+ 2 * reg_index + 1, buffer);
if (status == REG_VALID)
status = regcache_raw_read (regcache, tdep->ppc_fp0_regnum +
- 2 * reg_index, buffer);
+ 2 * reg_index, buffer + 8);
}
return status;
@@ -2701,9 +2702,9 @@ dfp_pseudo_register_write (struct gdbarc
else
{
regcache_raw_write (regcache, tdep->ppc_fp0_regnum +
- 2 * reg_index + 1, buffer + 8);
+ 2 * reg_index + 1, buffer);
regcache_raw_write (regcache, tdep->ppc_fp0_regnum +
- 2 * reg_index, buffer);
+ 2 * reg_index, buffer + 8);
}
}
@@ -2781,7 +2782,8 @@ efpr_pseudo_register_read (struct gdbarc
int reg_index = reg_nr - tdep->ppc_efpr0_regnum;
/* Read the portion that overlaps the VMX register. */
- return regcache_raw_read_part (regcache, tdep->ppc_vr0_regnum + reg_index, 0,
+ int offset = gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG ? 0 : 8;
+ return regcache_raw_read_part (regcache, tdep->ppc_vr0_regnum + reg_index, offset,
register_size (gdbarch, reg_nr), buffer);
}
@@ -2794,7 +2796,8 @@ efpr_pseudo_register_write (struct gdbar
int reg_index = reg_nr - tdep->ppc_efpr0_regnum;
/* Write the portion that overlaps the VMX register. */
- regcache_raw_write_part (regcache, tdep->ppc_vr0_regnum + reg_index, 0,
+ int offset = gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG ? 0 : 8;
+ regcache_raw_write_part (regcache, tdep->ppc_vr0_regnum + reg_index, offset,
register_size (gdbarch, reg_nr), buffer);
}
@@ -3550,6 +3553,7 @@ rs6000_gdbarch_init (struct gdbarch_info
enum auto_boolean soft_float_flag = powerpc_soft_float_global;
int soft_float;
enum powerpc_vector_abi vector_abi = powerpc_vector_abi_global;
+ enum powerpc_elf_abi elf_abi = POWERPC_ELF_AUTO;
int have_fpu = 1, have_spe = 0, have_mq = 0, have_altivec = 0, have_dfp = 0,
have_vsx = 0;
int tdesc_wordsize = -1;
@@ -3856,6 +3860,21 @@ rs6000_gdbarch_init (struct gdbarch_info
}
#ifdef HAVE_ELF
+ if (from_elf_exec)
+ {
+ switch (elf_elfheader (info.abfd)->e_flags & EF_PPC64_ABI)
+ {
+ case 1:
+ elf_abi = POWERPC_ELF_V1;
+ break;
+ case 2:
+ elf_abi = POWERPC_ELF_V2;
+ break;
+ default:
+ break;
+ }
+ }
+
if (soft_float_flag == AUTO_BOOLEAN_AUTO && from_elf_exec)
{
switch (bfd_elf_get_obj_attr_int (info.abfd, OBJ_ATTR_GNU,
@@ -3892,6 +3911,15 @@ rs6000_gdbarch_init (struct gdbarch_info
}
#endif
+ /* Default to ELFv2 ABI on 64-bit little-endian, and ELFv1 otherwise. */
+ if (elf_abi == POWERPC_ELF_AUTO)
+ {
+ if (wordsize == 8 && info.byte_order == BFD_ENDIAN_LITTLE)
+ elf_abi = POWERPC_ELF_V2;
+ else
+ elf_abi = POWERPC_ELF_V1;
+ }
+
if (soft_float_flag == AUTO_BOOLEAN_TRUE)
soft_float = 1;
else if (soft_float_flag == AUTO_BOOLEAN_FALSE)
@@ -3934,6 +3962,8 @@ rs6000_gdbarch_init (struct gdbarch_info
meaningful, because 64-bit CPUs can run in 32-bit mode. So, perform
separate word size check. */
tdep = gdbarch_tdep (arches->gdbarch);
+ if (tdep && tdep->elf_abi != elf_abi)
+ continue;
if (tdep && tdep->soft_float != soft_float)
continue;
if (tdep && tdep->vector_abi != vector_abi)
@@ -3956,6 +3986,7 @@ rs6000_gdbarch_init (struct gdbarch_info
tdep = XCALLOC (1, struct gdbarch_tdep);
tdep->wordsize = wordsize;
+ tdep->elf_abi = elf_abi;
tdep->soft_float = soft_float;
tdep->vector_abi = vector_abi;
--- a/gdb/auxv.c
+++ b/gdb/auxv.c
@@ -441,6 +441,7 @@ fprint_target_auxv (struct ui_file *file
TAG (AT_IGNOREPPC, _("Entry should be ignored"), dec);
TAG (AT_BASE_PLATFORM, _("String identifying base platform"), str);
TAG (AT_RANDOM, _("Address of 16 random bytes"), hex);
+ TAG (AT_HWCAP2, _("Extension of AT_HWCAP"), hex);
TAG (AT_EXECFN, _("File name of executable"), str);
TAG (AT_SECURE, _("Boolean, was exec setuid-like?"), dec);
TAG (AT_SYSINFO, _("Special system info/entry points"), hex);
--- a/gdb/configure.host
+++ b/gdb/configure.host
@@ -129,18 +129,18 @@ mips64*-*-openbsd*) gdb_host=obsd64 ;;
powerpc-*-aix* | rs6000-*-*)
gdb_host=aix ;;
powerpc*-*-freebsd*) gdb_host=fbsd ;;
-powerpc-*-linux*) gdb_host=linux ;;
powerpc-*-netbsd* | powerpc-*-knetbsd*-gnu)
gdb_host=nbsd ;;
powerpc-*-openbsd*) gdb_host=obsd ;;
-powerpc64-*-linux*) gdb_host=ppc64-linux
+powerpc64*-*-linux*) gdb_host=ppc64-linux
# Support 'pseudo-native' debugging on the Cell BE
if test "${target_cpu}" = "spu"; then
gdb_host=spu-linux
gdb_native=yes
fi
;;
+powerpc*-*-linux*) gdb_host=linux ;;
s390*-*-*) gdb_host=s390 ;;
--- a/gdb/configure.tgt
+++ b/gdb/configure.tgt
@@ -421,7 +421,7 @@ powerpc-*-aix* | rs6000-*-*)
ppc-sysv-tdep.o solib-svr4.o \
ravenscar-thread.o ppc-ravenscar-thread.o"
;;
-powerpc-*-linux* | powerpc64-*-linux*)
+powerpc*-*-linux*)
# Target: PowerPC running Linux
gdb_target_obs="rs6000-tdep.o ppc-linux-tdep.o ppc-sysv-tdep.o \
ppc64-tdep.o solib-svr4.o solib-spu.o \
--- a/gdb/doublest.c
+++ b/gdb/doublest.c
@@ -190,7 +190,8 @@ convert_floatformat_to_doublest (const s
{
double dto;
- floatformat_to_double (fmt, from, &dto);
+ floatformat_to_double (fmt->split_half ? fmt->split_half : fmt,
+ from, &dto);
*to = (DOUBLEST) dto;
return;
}
@@ -561,6 +562,11 @@ floatformat_is_negative (const struct fl
gdb_assert (fmt->totalsize
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
+ /* An IBM long double (a two element array of double) always takes the
+ sign of the first double. */
+ if (fmt->split_half)
+ fmt = fmt->split_half;
+
order = floatformat_normalize_byteorder (fmt, uval, newfrom);
if (order != fmt->byteorder)
@@ -587,6 +593,13 @@ floatformat_classify (const struct float
gdb_assert (fmt->totalsize
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
+ /* An IBM long double (a two element array of double) can be classified
+ by looking at the first double. inf and nan are specified as
+ ignoring the second double. zero and subnormal will always have
+ the second double 0.0 if the long double is correctly rounded. */
+ if (fmt->split_half)
+ fmt = fmt->split_half;
+
order = floatformat_normalize_byteorder (fmt, uval, newfrom);
if (order != fmt->byteorder)
@@ -669,6 +682,16 @@ floatformat_mantissa (const struct float
gdb_assert (fmt->totalsize
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
+ /* For IBM long double (a two element array of double), return the
+ mantissa of the first double. The problem with returning the
+ actual mantissa from both doubles is that there can be an
+ arbitrary number of implied 0's or 1's between the mantissas
+ of the first and second double. In any case, this function
+ is only used for dumping out nans, and a nan is specified to
+ ignore the value in the second double. */
+ if (fmt->split_half)
+ fmt = fmt->split_half;
+
order = floatformat_normalize_byteorder (fmt, uval, newfrom);
if (order != fmt->byteorder)
@@ -926,27 +949,3 @@ convert_typed_floating (const void *from
floatformat_from_doublest (to_fmt, &d, to);
}
}
-
-const struct floatformat *floatformat_ieee_single[BFD_ENDIAN_UNKNOWN];
-const struct floatformat *floatformat_ieee_double[BFD_ENDIAN_UNKNOWN];
-const struct floatformat *floatformat_ieee_quad[BFD_ENDIAN_UNKNOWN];
-const struct floatformat *floatformat_arm_ext[BFD_ENDIAN_UNKNOWN];
-const struct floatformat *floatformat_ia64_spill[BFD_ENDIAN_UNKNOWN];
-
-extern void _initialize_doublest (void);
-
-extern void
-_initialize_doublest (void)
-{
- floatformat_ieee_single[BFD_ENDIAN_LITTLE] = &floatformat_ieee_single_little;
- floatformat_ieee_single[BFD_ENDIAN_BIG] = &floatformat_ieee_single_big;
- floatformat_ieee_double[BFD_ENDIAN_LITTLE] = &floatformat_ieee_double_little;
- floatformat_ieee_double[BFD_ENDIAN_BIG] = &floatformat_ieee_double_big;
- floatformat_arm_ext[BFD_ENDIAN_LITTLE]
- = &floatformat_arm_ext_littlebyte_bigword;
- floatformat_arm_ext[BFD_ENDIAN_BIG] = &floatformat_arm_ext_big;
- floatformat_ia64_spill[BFD_ENDIAN_LITTLE] = &floatformat_ia64_spill_little;
- floatformat_ia64_spill[BFD_ENDIAN_BIG] = &floatformat_ia64_spill_big;
- floatformat_ieee_quad[BFD_ENDIAN_LITTLE] = &floatformat_ia64_quad_little;
- floatformat_ieee_quad[BFD_ENDIAN_BIG] = &floatformat_ia64_quad_big;
-}
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -200,6 +200,7 @@ struct gdbarch
gdbarch_return_in_first_hidden_param_p_ftype *return_in_first_hidden_param_p;
gdbarch_skip_prologue_ftype *skip_prologue;
gdbarch_skip_main_prologue_ftype *skip_main_prologue;
+ gdbarch_skip_entrypoint_ftype *skip_entrypoint;
gdbarch_inner_than_ftype *inner_than;
gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc;
gdbarch_remote_breakpoint_from_pc_ftype *remote_breakpoint_from_pc;
@@ -371,6 +372,7 @@ struct gdbarch startup_gdbarch =
default_return_in_first_hidden_param_p, /* return_in_first_hidden_param_p */
0, /* skip_prologue */
0, /* skip_main_prologue */
+ 0, /* skip_entrypoint */
0, /* inner_than */
0, /* breakpoint_from_pc */
default_remote_breakpoint_from_pc, /* remote_breakpoint_from_pc */
@@ -672,6 +674,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
if (gdbarch->skip_prologue == 0)
fprintf_unfiltered (log, "\n\tskip_prologue");
/* Skip verify of skip_main_prologue, has predicate. */
+ /* Skip verify of skip_entrypoint, has predicate. */
if (gdbarch->inner_than == 0)
fprintf_unfiltered (log, "\n\tinner_than");
if (gdbarch->breakpoint_from_pc == 0)
@@ -1285,6 +1288,12 @@ gdbarch_dump (struct gdbarch *gdbarch, s
"gdbarch_dump: single_step_through_delay = <%s>\n",
host_address_to_string (gdbarch->single_step_through_delay));
fprintf_unfiltered (file,
+ "gdbarch_dump: gdbarch_skip_entrypoint_p() = %d\n",
+ gdbarch_skip_entrypoint_p (gdbarch));
+ fprintf_unfiltered (file,
+ "gdbarch_dump: skip_entrypoint = <%s>\n",
+ host_address_to_string (gdbarch->skip_entrypoint));
+ fprintf_unfiltered (file,
"gdbarch_dump: gdbarch_skip_main_prologue_p() = %d\n",
gdbarch_skip_main_prologue_p (gdbarch));
fprintf_unfiltered (file,
@@ -2635,6 +2644,30 @@ set_gdbarch_skip_main_prologue (struct g
}
int
+gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch)
+{
+ gdb_assert (gdbarch != NULL);
+ return gdbarch->skip_entrypoint != NULL;
+}
+
+CORE_ADDR
+gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip)
+{
+ gdb_assert (gdbarch != NULL);
+ gdb_assert (gdbarch->skip_entrypoint != NULL);
+ if (gdbarch_debug >= 2)
+ fprintf_unfiltered (gdb_stdlog, "gdbarch_skip_entrypoint called\n");
+ return gdbarch->skip_entrypoint (gdbarch, ip);
+}
+
+void
+set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch,
+ gdbarch_skip_entrypoint_ftype skip_entrypoint)
+{
+ gdbarch->skip_entrypoint = skip_entrypoint;
+}
+
+int
gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs)
{
gdb_assert (gdbarch != NULL);
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -487,6 +487,12 @@ typedef CORE_ADDR (gdbarch_skip_main_pro
extern CORE_ADDR gdbarch_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
extern void set_gdbarch_skip_main_prologue (struct gdbarch *gdbarch, gdbarch_skip_main_prologue_ftype *skip_main_prologue);
+extern int gdbarch_skip_entrypoint_p (struct gdbarch *gdbarch);
+
+typedef CORE_ADDR (gdbarch_skip_entrypoint_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
+extern CORE_ADDR gdbarch_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR ip);
+extern void set_gdbarch_skip_entrypoint (struct gdbarch *gdbarch, gdbarch_skip_entrypoint_ftype *skip_entrypoint);
+
typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -527,6 +527,7 @@ m:int:return_in_first_hidden_param_p:str
m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
+M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip
f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
# Return the adjusted address and kind to use for Z0/Z1 packets.
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -107,8 +107,8 @@ const struct floatformat *floatformats_v
&floatformat_vax_d
};
const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = {
- &floatformat_ibm_long_double,
- &floatformat_ibm_long_double
+ &floatformat_ibm_long_double_big,
+ &floatformat_ibm_long_double_little
};
/* Should opaque types be resolved? */
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -3139,6 +3139,10 @@ fill_in_stop_func (struct gdbarch *gdbar
ecs->stop_func_start
+= gdbarch_deprecated_function_start_offset (gdbarch);
+ if (gdbarch_skip_entrypoint_p (gdbarch))
+ ecs->stop_func_start = gdbarch_skip_entrypoint (gdbarch,
+ ecs->stop_func_start);
+
ecs->stop_func_filled_in = 1;
}
}
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -44,6 +44,7 @@
#include "observer.h"
#include "auxv.h"
#include "elf/common.h"
+#include "elf/ppc64.h"
#include "exceptions.h"
#include "arch-utils.h"
#include "spu-tdep.h"
@@ -876,6 +877,43 @@ ppc_linux_core_read_description (struct
}
}
+/* If the ELF symbol has a local entry point, use it as SYMBOL_VALUE_ADDRESS
+ for the msymbol. This matches the DWARF function start if present. */
+
+static void
+ppc_elfv2_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
+{
+ elf_symbol_type *elf_sym = (elf_symbol_type *)sym;
+ switch (PPC64_LOCAL_ENTRY_OFFSET (elf_sym->internal_elf_sym.st_other))
+ {
+ default:
+ break;
+ case 8:
+ MSYMBOL_TARGET_FLAG_1 (msym) = 1;
+ break;
+ }
+}
+
+static CORE_ADDR
+ppc_elfv2_skip_entrypoint (struct gdbarch *gdbarch, CORE_ADDR pc)
+{
+ struct bound_minimal_symbol fun;
+ int local_entry_offset = 0;
+
+ fun = lookup_minimal_symbol_by_pc (pc);
+ if (fun.minsym == NULL)
+ return pc;
+
+ if (MSYMBOL_TARGET_FLAG_1 (fun.minsym))
+ local_entry_offset = 8;
+
+ if (SYMBOL_VALUE_ADDRESS (fun.minsym) <= pc
+ && pc < SYMBOL_VALUE_ADDRESS (fun.minsym) + local_entry_offset)
+ return SYMBOL_VALUE_ADDRESS (fun.minsym) + local_entry_offset;
+
+ return pc;
+}
+
/* Implementation of `gdbarch_stap_is_single_operand', as defined in
gdbarch.h. */
@@ -1332,13 +1370,23 @@ ppc_linux_init_abi (struct gdbarch_info
if (tdep->wordsize == 8)
{
- /* Handle PPC GNU/Linux 64-bit function pointers (which are really
- function descriptors). */
- set_gdbarch_convert_from_func_ptr_addr
- (gdbarch, ppc64_convert_from_func_ptr_addr);
+ if (tdep->elf_abi == POWERPC_ELF_V1)
+ {
+ /* Handle PPC GNU/Linux 64-bit function pointers (which are really
+ function descriptors). */
+ set_gdbarch_convert_from_func_ptr_addr
+ (gdbarch, ppc64_convert_from_func_ptr_addr);
- set_gdbarch_elf_make_msymbol_special (gdbarch,
- ppc64_elf_make_msymbol_special);
+ set_gdbarch_elf_make_msymbol_special
+ (gdbarch, ppc64_elf_make_msymbol_special);
+ }
+ else
+ {
+ set_gdbarch_elf_make_msymbol_special
+ (gdbarch, ppc_elfv2_elf_make_msymbol_special);
+
+ set_gdbarch_skip_entrypoint (gdbarch, ppc_elfv2_skip_entrypoint);
+ }
/* Shared library handling. */
set_gdbarch_skip_trampoline_code (gdbarch, ppc64_skip_trampoline_code);
--- a/gdb/ppc-sysv-tdep.c
+++ b/gdb/ppc-sysv-tdep.c
@@ -610,42 +610,48 @@ ppc_sysv_abi_push_dummy_call (struct gdb
}
/* Handle the return-value conventions for Decimal Floating Point values
- in both ppc32 and ppc64, which are the same. */
-static int
+ in both ppc32 and ppc64, which are the same. INDEX specifies which
+ part of a multi-part return value is to be handled. */
+static void
get_decimal_float_return_value (struct gdbarch *gdbarch, struct type *valtype,
struct regcache *regcache, gdb_byte *readbuf,
- const gdb_byte *writebuf)
+ const gdb_byte *writebuf, int index)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ int offset = index * TYPE_LENGTH (valtype);
gdb_assert (TYPE_CODE (valtype) == TYPE_CODE_DECFLOAT);
/* 32-bit and 64-bit decimal floats in f1. */
if (TYPE_LENGTH (valtype) <= 8)
{
+ int regnum = tdep->ppc_fp0_regnum + 1 + index;
+
if (writebuf != NULL)
{
gdb_byte regval[MAX_REGISTER_SIZE];
const gdb_byte *p;
/* 32-bit decimal float is right aligned in the doubleword. */
- if (TYPE_LENGTH (valtype) == 4)
+ if (TYPE_LENGTH (valtype) == 4
+ && gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
{
- memcpy (regval + 4, writebuf, 4);
+ memcpy (regval + 4, writebuf + offset, 4);
p = regval;
}
else
- p = writebuf;
+ p = writebuf + offset;
- regcache_cooked_write (regcache, tdep->ppc_fp0_regnum + 1, p);
+ regcache_cooked_write (regcache, regnum, p);
}
if (readbuf != NULL)
{
- regcache_cooked_read (regcache, tdep->ppc_fp0_regnum + 1, readbuf);
+ regcache_cooked_read (regcache, regnum, readbuf);
/* Left align 32-bit decimal float. */
- if (TYPE_LENGTH (valtype) == 4)
- memcpy (readbuf, readbuf + 4, 4);
+ if (TYPE_LENGTH (valtype) == 4
+ && gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ memcpy (readbuf + offset, readbuf + offset + 4, 4);
}
}
/* 128-bit decimal floats in f2,f3. */
@@ -653,24 +659,27 @@ get_decimal_float_return_value (struct g
{
if (writebuf != NULL || readbuf != NULL)
{
- int i;
+ int i, regnum;
for (i = 0; i < 2; i++)
{
+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
+ regnum = tdep->ppc_fp0_regnum + 2 + i + 2 * index;
+ else
+ regnum = tdep->ppc_fp0_regnum + 3 - i + 2 * index;
+
if (writebuf != NULL)
- regcache_cooked_write (regcache, tdep->ppc_fp0_regnum + 2 + i,
- writebuf + i * 8);
+ regcache_cooked_write (regcache, regnum,
+ writebuf + offset + i * 8);
if (readbuf != NULL)
- regcache_cooked_read (regcache, tdep->ppc_fp0_regnum + 2 + i,
- readbuf + i * 8);
+ regcache_cooked_read (regcache, regnum,
+ readbuf + offset + i * 8);
}
}
}
else
/* Can't happen. */
internal_error (__FILE__, __LINE__, _("Unknown decimal float size."));
-
- return RETURN_VALUE_REGISTER_CONVENTION;
}
/* Handle the return-value conventions specified by the SysV 32-bit
@@ -802,8 +811,11 @@ do_ppc_sysv_return_value (struct gdbarch
return RETURN_VALUE_REGISTER_CONVENTION;
}
if (TYPE_CODE (type) == TYPE_CODE_DECFLOAT && !tdep->soft_float)
- return get_decimal_float_return_value (gdbarch, type, regcache, readbuf,
- writebuf);
+ {
+ get_decimal_float_return_value (gdbarch, type, regcache,
+ readbuf, writebuf, 0);
+ return RETURN_VALUE_REGISTER_CONVENTION;
+ }
else if ((TYPE_CODE (type) == TYPE_CODE_INT
|| TYPE_CODE (type) == TYPE_CODE_CHAR
|| TYPE_CODE (type) == TYPE_CODE_BOOL
@@ -1102,6 +1114,156 @@ convert_code_addr_to_desc_addr (CORE_ADD
return 1;
}
+/* Walk down the type tree of TYPE counting consecutive base elements.
+ If *FIELD_TYPE is NULL, then set it to the first valid floating point
+ or vector type. If a non-floating point or vector type is found, or
+ if a floating point or vector type that doesn't match a non-NULL
+ *FIELD_TYPE is found, then return -1, otherwise return the count in the
+ sub-tree. */
+
+static LONGEST
+ppc64_aggregate_candidate (struct type *type,
+ struct type **field_type)
+{
+ type = check_typedef (type);
+
+ switch (TYPE_CODE (type))
+ {
+ case TYPE_CODE_FLT:
+ case TYPE_CODE_DECFLOAT:
+ if (!*field_type)
+ *field_type = type;
+ if (TYPE_CODE (*field_type) == TYPE_CODE (type)
+ && TYPE_LENGTH (*field_type) == TYPE_LENGTH (type))
+ return 1;
+ break;
+
+ case TYPE_CODE_COMPLEX:
+ type = TYPE_TARGET_TYPE (type);
+ if (TYPE_CODE (type) == TYPE_CODE_FLT
+ || TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
+ {
+ if (!*field_type)
+ *field_type = type;
+ if (TYPE_CODE (*field_type) == TYPE_CODE (type)
+ && TYPE_LENGTH (*field_type) == TYPE_LENGTH (type))
+ return 2;
+ }
+ break;
+
+ case TYPE_CODE_ARRAY:
+ if (TYPE_VECTOR (type))
+ {
+ if (!*field_type)
+ *field_type = type;
+ if (TYPE_CODE (*field_type) == TYPE_CODE (type)
+ && TYPE_LENGTH (*field_type) == TYPE_LENGTH (type))
+ return 1;
+ }
+ else
+ {
+ LONGEST count, low_bound, high_bound;
+
+ count = ppc64_aggregate_candidate
+ (TYPE_TARGET_TYPE (type), field_type);
+ if (count == -1)
+ return -1;
+
+ if (!get_array_bounds (type, &low_bound, &high_bound))
+ return -1;
+ count *= high_bound - low_bound;
+
+ /* There must be no padding. */
+ if (count == 0)
+ return TYPE_LENGTH (type) == 0 ? 0 : -1;
+ else if (TYPE_LENGTH (type) != count * TYPE_LENGTH (*field_type))
+ return -1;
+
+ return count;
+ }
+ break;
+
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ {
+ LONGEST count = 0;
+ int i;
+
+ for (i = 0; i < TYPE_NFIELDS (type); i++)
+ {
+ LONGEST sub_count;
+
+ if (field_is_static (&TYPE_FIELD (type, i)))
+ continue;
+
+ sub_count = ppc64_aggregate_candidate
+ (TYPE_FIELD_TYPE (type, i), field_type);
+ if (sub_count == -1)
+ return -1;
+
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
+ count += sub_count;
+ else
+ count = max (count, sub_count);
+ }
+
+ /* There must be no padding. */
+ if (count == 0)
+ return TYPE_LENGTH (type) == 0 ? 0 : -1;
+ else if (TYPE_LENGTH (type) != count * TYPE_LENGTH (*field_type))
+ return -1;
+
+ return count;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return -1;
+}
+
+/* If an argument of type TYPE is a homogeneous float or vector aggregate
+ that shall be passed in FP/vector registers according to the ELFv2 ABI,
+ return the homogeneous element type in *ELT_TYPE and the number of
+ elements in *N_ELTS, and return non-zero. Otherwise, return zero. */
+
+static int
+ppc64_elfv2_abi_homogeneous_aggregate (struct type *type,
+ struct type **elt_type, int *n_elts)
+{
+ /* Complex types at the top level are treated separately. However,
+ complex types can be elements of homogeneous aggregates. */
+ if (TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION
+ || (TYPE_CODE (type) == TYPE_CODE_ARRAY && !TYPE_VECTOR (type)))
+ {
+ struct type *field_type = NULL;
+ LONGEST field_count = ppc64_aggregate_candidate (type, &field_type);
+
+ if (field_count > 0)
+ {
+ int n_regs = ((TYPE_CODE (field_type) == TYPE_CODE_FLT
+ || TYPE_CODE (field_type) == TYPE_CODE_DECFLOAT)?
+ (TYPE_LENGTH (field_type) + 7) >> 3 : 1);
+
+ /* The ELFv2 ABI allows homogeneous aggregates to occupy
+ up to 8 registers. */
+ if (field_count * n_regs <= 8)
+ {
+ if (elt_type)
+ *elt_type = field_type;
+ if (n_elts)
+ *n_elts = (int) field_count;
+ return 1;
+ }
+ }
+ }
+
+ return 0;
+}
+
/* Push a float in either registers, or in the stack. Using the ppc 64 bit
SysV ABI.
@@ -1143,6 +1305,8 @@ ppc64_sysv_abi_push_float (struct gdbarc
/* Write value in the stack's parameter save area. */
write_memory (gparam, p, 8);
+ if (greg <= 10)
+ regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + greg, p);
/* Floats and Doubles go in f1 .. f13. They also consume a left aligned
GREG, and can end up in memory. */
@@ -1154,8 +1318,6 @@ ppc64_sysv_abi_push_float (struct gdbarc
convert_typed_floating (val, type, regval, regtype);
regcache_cooked_write (regcache, tdep->ppc_fp0_regnum + freg, regval);
}
- if (greg <= 10)
- regcache_cooked_write (regcache, tdep->ppc_gp0_regnum + greg, regval);
}
else
{
@@ -1268,9 +1430,13 @@ ppc64_sysv_abi_push_dummy_call (struct g
to their corresponding regions. */
refparam = align_down (sp - refparam_size, 16);
gparam = align_down (refparam - gparam_size, 16);
- /* Add in space for the TOC, link editor double word,
- compiler double word, LR save area, CR save area. */
- sp = align_down (gparam - 48, 16);
+ /* Add in space for the TOC, link editor double word (v1 only),
+ compiler double word (v1 only), LR save area, CR save area,
+ and backchain. */
+ if (tdep->elf_abi == POWERPC_ELF_V1)
+ sp = align_down (gparam - 48, 16);
+ else
+ sp = align_down (gparam - 32, 16);
}
/* If the function is returning a `struct', then there is an
@@ -1375,7 +1541,8 @@ ppc64_sysv_abi_push_dummy_call (struct g
/* 32-bit decimal floats are right aligned in the
doubleword. */
- if (TYPE_LENGTH (type) == 4)
+ if (TYPE_LENGTH (type) == 4
+ && byte_order == BFD_ENDIAN_BIG)
{
memcpy (regval + 4, val, 4);
p = regval;
@@ -1407,10 +1574,21 @@ ppc64_sysv_abi_push_dummy_call (struct g
{
/* Make sure freg is even. */
freg += freg & 1;
- regcache_cooked_write (regcache,
- tdep->ppc_fp0_regnum + freg, val);
- regcache_cooked_write (regcache,
- tdep->ppc_fp0_regnum + freg + 1, val + 8);
+
+ if (byte_order == BFD_ENDIAN_BIG)
+ {
+ regcache_cooked_write (regcache,
+ tdep->ppc_fp0_regnum + freg, val);
+ regcache_cooked_write (regcache,
+ tdep->ppc_fp0_regnum + freg + 1, val + 8);
+ }
+ else
+ {
+ regcache_cooked_write (regcache,
+ tdep->ppc_fp0_regnum + freg + 1, val);
+ regcache_cooked_write (regcache,
+ tdep->ppc_fp0_regnum + freg, val + 8);
+ }
}
write_memory (gparam, val, TYPE_LENGTH (type));
@@ -1587,8 +1765,9 @@ ppc64_sysv_abi_push_dummy_call (struct g
ULONGEST word = unpack_long (type, val);
/* Convert any function code addresses into
descriptors. */
- if (TYPE_CODE (type) == TYPE_CODE_PTR
- || TYPE_CODE (type) == TYPE_CODE_REF)
+ if (tdep->elf_abi == POWERPC_ELF_V1
+ && (TYPE_CODE (type) == TYPE_CODE_PTR
+ || TYPE_CODE (type) == TYPE_CODE_REF))
{
struct type *target_type;
target_type = check_typedef (TYPE_TARGET_TYPE (type));
@@ -1613,6 +1792,9 @@ ppc64_sysv_abi_push_dummy_call (struct g
}
else
{
+ struct type *elt_type;
+ int n_elts;
+
int byte;
for (byte = 0; byte < TYPE_LENGTH (type);
byte += tdep->wordsize)
@@ -1630,7 +1812,7 @@ ppc64_sysv_abi_push_dummy_call (struct g
versions before 3.4 implemented this
incorrectly; see
<http://gcc.gnu.org/gcc-3.4/powerpc-abi.html>. */
- if (byte == 0)
+ if (byte_order == BFD_ENDIAN_BIG && byte == 0)
memcpy (regval + tdep->wordsize - len,
val + byte, len);
else
@@ -1649,7 +1831,7 @@ ppc64_sysv_abi_push_dummy_call (struct g
value to memory. Fortunately, doing this
simplifies the code. */
int len = TYPE_LENGTH (type);
- if (len < tdep->wordsize)
+ if (byte_order == BFD_ENDIAN_BIG && len < tdep->wordsize)
write_memory (gparam + tdep->wordsize - len, val, len);
else
write_memory (gparam, val, len);
@@ -1705,6 +1887,132 @@ ppc64_sysv_abi_push_dummy_call (struct g
}
}
}
+ /* In the ELFv2 ABI, homogeneous floating-point or vector
+ aggregates are passed in registers. */
+ if (tdep->elf_abi == POWERPC_ELF_V2
+ && ppc64_elfv2_abi_homogeneous_aggregate (type,
+ &elt_type, &n_elts))
+ {
+ int i;
+ for (i = 0; i < n_elts; i++)
+ {
+ const gdb_byte *elt_val
+ = val + i * TYPE_LENGTH (elt_type);
+
+ switch (TYPE_CODE (elt_type))
+ {
+ case TYPE_CODE_FLT:
+ if (TYPE_LENGTH (elt_type) <= 8)
+ {
+ if (write_pass && freg <= 13)
+ {
+ int fregnum = tdep->ppc_fp0_regnum + freg;
+ gdb_byte regval[MAX_REGISTER_SIZE];
+ struct type *regtype
+ = register_type (gdbarch, fregnum);
+ convert_typed_floating (elt_val, elt_type,
+ regval, regtype);
+ regcache_cooked_write (regcache,
+ fregnum, regval);
+ }
+ freg++;
+ }
+ else if (TYPE_LENGTH (elt_type) == 16
+ && (gdbarch_long_double_format (gdbarch)
+ == floatformats_ibm_long_double))
+ {
+ if (write_pass && freg <= 13)
+ {
+ int fregnum = tdep->ppc_fp0_regnum + freg;
+ regcache_cooked_write (regcache,
+ fregnum, elt_val);
+ if (freg <= 12)
+ regcache_cooked_write (regcache,
+ fregnum + 1,
+ elt_val + 8);
+ }
+ freg += 2;
+ }
+ break;
+
+ case TYPE_CODE_DECFLOAT:
+ if (TYPE_LENGTH (elt_type) <= 8)
+ {
+ if (write_pass && freg <= 13)
+ {
+ int fregnum = tdep->ppc_fp0_regnum + freg;
+ gdb_byte regval[MAX_REGISTER_SIZE];
+ const gdb_byte *p;
+
+ /* 32-bit decimal floats are right aligned
+ in the doubleword. */
+ if (TYPE_LENGTH (elt_type) == 4
+ && byte_order == BFD_ENDIAN_BIG)
+ {
+ memcpy (regval + 4, elt_val, 4);
+ p = regval;
+ }
+ else
+ p = elt_val;
+
+ regcache_cooked_write (regcache, fregnum, p);
+ }
+ freg++;
+ }
+ else if (TYPE_LENGTH (elt_type) == 16)
+ {
+ /* Make sure freg is even. */
+ freg += freg & 1;
+
+ if (write_pass && freg <= 12)
+ {
+ int fregnum = tdep->ppc_fp0_regnum + freg;
+ if (byte_order == BFD_ENDIAN_BIG)
+ {
+ regcache_cooked_write (regcache,
+ fregnum,
+ elt_val);
+ regcache_cooked_write (regcache,
+ fregnum + 1,
+ elt_val + 8);
+ }
+ else
+ {
+ regcache_cooked_write (regcache,
+ fregnum + 1,
+ elt_val);
+ regcache_cooked_write (regcache,
+ fregnum,
+ elt_val + 8);
+ }
+ }
+ freg += 2;
+ }
+ break;
+
+ case TYPE_CODE_ARRAY:
+ gdb_assert (TYPE_VECTOR (type));
+
+ if (tdep->vector_abi == POWERPC_VEC_ALTIVEC
+ && TYPE_LENGTH (elt_type) == 16)
+ {
+ if (write_pass && vreg <= 13)
+ {
+ int vregnum = tdep->ppc_vr0_regnum + vreg;
+ regcache_cooked_write (regcache,
+ vregnum, elt_val);
+ }
+ vreg++;
+ }
+ break;
+
+ default:
+ internal_error (__FILE__, __LINE__,
+ _("Unknown element type."));
+ break;
+ }
+ }
+ }
/* Always consume parameter stack space. */
gparam = align_up (gparam + TYPE_LENGTH (type), tdep->wordsize);
}
@@ -1733,24 +2041,31 @@ ppc64_sysv_abi_push_dummy_call (struct g
breakpoint. */
regcache_cooked_write_signed (regcache, tdep->ppc_lr_regnum, bp_addr);
- /* Use the func_addr to find the descriptor, and use that to find
- the TOC. If we're calling via a function pointer, the pointer
- itself identifies the descriptor. */
- {
- struct type *ftype = check_typedef (value_type (function));
- CORE_ADDR desc_addr = value_as_address (function);
-
- if (TYPE_CODE (ftype) == TYPE_CODE_PTR
- || convert_code_addr_to_desc_addr (func_addr, &desc_addr))
- {
- /* The TOC is the second double word in the descriptor. */
- CORE_ADDR toc =
- read_memory_unsigned_integer (desc_addr + tdep->wordsize,
- tdep->wordsize, byte_order);
- regcache_cooked_write_unsigned (regcache,
- tdep->ppc_gp0_regnum + 2, toc);
- }
- }
+ /* In the ELFv1 ABI, use the func_addr to find the descriptor, and use
+ that to find the TOC. If we're calling via a function pointer,
+ the pointer itself identifies the descriptor. */
+ if (tdep->elf_abi == POWERPC_ELF_V1)
+ {
+ struct type *ftype = check_typedef (value_type (function));
+ CORE_ADDR desc_addr = value_as_address (function);
+
+ if (TYPE_CODE (ftype) == TYPE_CODE_PTR
+ || convert_code_addr_to_desc_addr (func_addr, &desc_addr))
+ {
+ /* The TOC is the second double word in the descriptor. */
+ CORE_ADDR toc =
+ read_memory_unsigned_integer (desc_addr + tdep->wordsize,
+ tdep->wordsize, byte_order);
+ regcache_cooked_write_unsigned (regcache,
+ tdep->ppc_gp0_regnum + 2, toc);
+ }
+ }
+
+ /* In the ELFv2 ABI, we need to pass the target address in r12 since
+ we may be calling a global entry point. */
+ if (tdep->elf_abi == POWERPC_ELF_V2)
+ regcache_cooked_write_unsigned (regcache,
+ tdep->ppc_gp0_regnum + 12, func_addr);
return sp;
}
@@ -1775,6 +2090,8 @@ ppc64_sysv_abi_return_value (struct gdba
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct type *func_type = function ? value_type (function) : NULL;
int opencl_abi = func_type? ppc_sysv_use_opencl_abi (func_type) : 0;
+ struct type *elt_type;
+ int n_elts;
/* This function exists to support a calling convention that
requires floating-point registers. It shouldn't be used on
@@ -1799,8 +2116,11 @@ ppc64_sysv_abi_return_value (struct gdba
return RETURN_VALUE_REGISTER_CONVENTION;
}
if (TYPE_CODE (valtype) == TYPE_CODE_DECFLOAT)
- return get_decimal_float_return_value (gdbarch, valtype, regcache, readbuf,
- writebuf);
+ {
+ get_decimal_float_return_value (gdbarch, valtype, regcache,
+ readbuf, writebuf, 0);
+ return RETURN_VALUE_REGISTER_CONVENTION;
+ }
/* Integers in r3. */
if ((TYPE_CODE (valtype) == TYPE_CODE_INT
|| TYPE_CODE (valtype) == TYPE_CODE_ENUM
@@ -2019,6 +2339,114 @@ ppc64_sysv_abi_return_value (struct gdba
}
}
return RETURN_VALUE_REGISTER_CONVENTION;
+ }
+ /* In the ELFv2 ABI, homogeneous floating-point or vector
+ aggregates are returned in registers. */
+ if (tdep->elf_abi == POWERPC_ELF_V2
+ && ppc64_elfv2_abi_homogeneous_aggregate (valtype, &elt_type, &n_elts))
+ {
+ int i;
+ for (i = 0; i < n_elts; i++)
+ {
+ int offset = i * TYPE_LENGTH (elt_type);
+
+ switch (TYPE_CODE (elt_type))
+ {
+ case TYPE_CODE_FLT:
+ if (TYPE_LENGTH (elt_type) <= 8)
+ {
+ int regnum = tdep->ppc_fp0_regnum + 1 + i;
+ gdb_byte regval[MAX_REGISTER_SIZE];
+ struct type *regtype = register_type (gdbarch, regnum);
+ if (writebuf != NULL)
+ {
+ convert_typed_floating (writebuf + offset, elt_type,
+ regval, regtype);
+ regcache_cooked_write (regcache, regnum, regval);
+ }
+ if (readbuf != NULL)
+ {
+ regcache_cooked_read (regcache, regnum, regval);
+ convert_typed_floating (regval, regtype,
+ readbuf + offset, elt_type);
+ }
+ }
+ else
+ {
+ int j, nregs = (TYPE_LENGTH (elt_type) + 7) / 8;
+ for (j = 0; j < nregs; j++)
+ {
+ int regnum = tdep->ppc_fp0_regnum + 1 + nregs * i + j;
+
+ if (writebuf != NULL)
+ regcache_cooked_write (regcache, regnum,
+ writebuf + offset + j * 8);
+ if (readbuf != NULL)
+ regcache_cooked_read (regcache, regnum,
+ readbuf + offset + j * 8);
+ }
+ }
+ break;
+
+ case TYPE_CODE_DECFLOAT:
+ get_decimal_float_return_value (gdbarch, elt_type, regcache,
+ readbuf, writebuf, i);
+ break;
+
+ case TYPE_CODE_ARRAY:
+ {
+ int regnum = tdep->ppc_vr0_regnum + 2 + i;
+ gdb_assert (TYPE_VECTOR (elt_type));
+
+ if (writebuf != NULL)
+ regcache_cooked_write (regcache, regnum, writebuf + offset);
+ if (readbuf != NULL)
+ regcache_cooked_read (regcache, regnum, readbuf + offset);
+ }
+ break;
+ }
+ }
+ return RETURN_VALUE_REGISTER_CONVENTION;
+ }
+ /* In the ELFv2 ABI, aggregate types of up to 16 bytes are
+ returned in registers r3:r4. */
+ if (tdep->elf_abi == POWERPC_ELF_V2
+ && TYPE_LENGTH (valtype) <= 16
+ && (TYPE_CODE (valtype) == TYPE_CODE_STRUCT
+ || TYPE_CODE (valtype) == TYPE_CODE_UNION
+ || (TYPE_CODE (valtype) == TYPE_CODE_ARRAY && !TYPE_VECTOR (valtype))))
+ {
+ int n_regs = (TYPE_LENGTH (valtype) + tdep->wordsize - 1) / tdep->wordsize;
+ int i;
+
+ for (i = 0; i < n_regs; i++)
+ {
+ gdb_byte regval[MAX_REGISTER_SIZE];
+ int regnum = tdep->ppc_gp0_regnum + 3 + i;
+ int offset = i * tdep->wordsize;
+ int len = TYPE_LENGTH (valtype) - offset;
+ if (len > tdep->wordsize)
+ len = tdep->wordsize;
+
+ if (writebuf != NULL)
+ {
+ memset (regval, 0, sizeof regval);
+ if (byte_order == BFD_ENDIAN_BIG && offset == 0)
+ memcpy (regval + tdep->wordsize - len, writebuf, len);
+ else
+ memcpy (regval, writebuf + offset, len);
+ regcache_cooked_write (regcache, regnum, regval);
+ }
+ if (readbuf != NULL)
+ {
+ regcache_cooked_read (regcache, regnum, regval);
+ if (byte_order == BFD_ENDIAN_BIG && offset == 0)
+ memcpy (readbuf, regval + tdep->wordsize - len, len);
+ else
+ memcpy (readbuf + offset, regval, len);
+ }
+ }
+ return RETURN_VALUE_REGISTER_CONVENTION;
}
return RETURN_VALUE_STRUCT_CONVENTION;
}
--- a/gdb/ppc-tdep.h
+++ b/gdb/ppc-tdep.h
@@ -182,6 +182,15 @@ extern void ppc_collect_vsxregset (const
/* Private data that this module attaches to struct gdbarch. */
+/* ELF ABI version used by the inferior. */
+enum powerpc_elf_abi
+{
+ POWERPC_ELF_AUTO,
+ POWERPC_ELF_V1,
+ POWERPC_ELF_V2,
+ POWERPC_ELF_LAST
+};
+
/* Vector ABI used by the inferior. */
enum powerpc_vector_abi
{
@@ -197,6 +206,8 @@ struct gdbarch_tdep
int wordsize; /* Size in bytes of fixed-point word. */
int soft_float; /* Avoid FP registers for arguments? */
+ enum powerpc_elf_abi elf_abi; /* ELF ABI version. */
+
/* How to pass vector arguments. Never set to AUTO or LAST. */
enum powerpc_vector_abi vector_abi;
--- a/gdb/symtab.c
+++ b/gdb/symtab.c
@@ -2881,6 +2881,8 @@ skip_prologue_sal (struct symtab_and_lin
/* Skip "first line" of function (which is actually its prologue). */
pc += gdbarch_deprecated_function_start_offset (gdbarch);
+ if (gdbarch_skip_entrypoint_p (gdbarch))
+ pc = gdbarch_skip_entrypoint (gdbarch, pc);
if (skip)
pc = gdbarch_skip_prologue (gdbarch, pc);
--- a/gdb/testsuite/gdb.arch/altivec-regs.exp
+++ b/gdb/testsuite/gdb.arch/altivec-regs.exp
@@ -118,7 +118,7 @@ gdb_test "info reg vscr" "vscr.*0x1\t1"
if {$endianness == "big"} {
set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .0, 1, 0, 1, 0, 1, 0, 1., v16_int8 = .0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1.."
} else {
- set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .1, 0, 1, 0, 1, 0, 1, 0., v16_int8 = .1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.."
+ set decimal_vector ".uint128 = 0x00000001000000010000000100000001, v4_float = .1.*e-45, 1.*e-45, 1.*e-45, 1.*e-45., v4_int32 = .1, 1, 1, 1., v8_int16 = .1, 0, 1, 0, 1, 0, 1, 0., v16_int8 = .1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0.."
}
for {set i 0} {$i < 32} {incr i 1} {
--- a/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
+++ b/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
@@ -20,7 +20,7 @@
# Testcase for ppc decimal128 pseudo-registers.
-if ![istarget "powerpc64-*"] then {
+if ![istarget "powerpc64*-*"] then {
verbose "Skipping powerpc Decimal128 pseudo-registers testcase."
return
}
--- a/gdb/testsuite/gdb.arch/vsx-regs.exp
+++ b/gdb/testsuite/gdb.arch/vsx-regs.exp
@@ -58,19 +58,46 @@ if ![runto_main] then {
gdb_suppress_tests
}
+send_gdb "show endian\n"
+set endianness ""
+gdb_expect {
+ -re "(The target endianness is set automatically .currently )(big|little)( endian.*)$gdb_prompt $" {
+ pass "endianness"
+ set endianness $expect_out(2,string)
+ }
+ -re ".*$gdb_prompt $" {
+ fail "couldn't get endianness"
+ }
+ timeout { fail "(timeout) endianness" }
+}
+
# Data sets used throughout the test
-set vector_register1 ".uint128 = 0x3ff4cccccccccccc0000000000000000, v2_double = .0x1, 0x0., v4_float = .0x1, 0xf99999a0, 0x0, 0x0., v4_int32 = .0x3ff4cccc, 0xcccccccc, 0x0, 0x0., v8_int16 = .0x3ff4, 0xcccc, 0xcccc, 0xcccc, 0x0, 0x0, 0x0, 0x0., v16_int8 = .0x3f, 0xf4, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0.."
+if {$endianness == "big"} {
+ set vector_register1 ".uint128 = 0x3ff4cccccccccccc0000000000000000, v2_double = .0x1, 0x0., v4_float = .0x1, 0xf99999a0, 0x0, 0x0., v4_int32 = .0x3ff4cccc, 0xcccccccc, 0x0, 0x0., v8_int16 = .0x3ff4, 0xcccc, 0xcccc, 0xcccc, 0x0, 0x0, 0x0, 0x0., v16_int8 = .0x3f, 0xf4, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0.."
+
+ set vector_register1_vr ".uint128 = 0x3ff4cccccccccccc0000000100000001, v4_float = .0x1, 0xf99999a0, 0x0, 0x0., v4_int32 = .0x3ff4cccc, 0xcccccccc, 0x1, 0x1., v8_int16 = .0x3ff4, 0xcccc, 0xcccc, 0xcccc, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x3f, 0xf4, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
+
+ set vector_register2 "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v2_double = .0x1, 0x1., v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef., v16_int8 = .0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef.."
-set vector_register1_vr ".uint128 = 0x3ff4cccccccccccc0000000100000001, v4_float = .0x1, 0xf99999a0, 0x0, 0x0., v4_int32 = .0x3ff4cccc, 0xcccccccc, 0x1, 0x1., v8_int16 = .0x3ff4, 0xcccc, 0xcccc, 0xcccc, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x3f, 0xf4, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
+ set vector_register2_vr "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef., v16_int8 = .0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef.."
-set vector_register2 "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v2_double = .0x1, 0x1., v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef., v16_int8 = .0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef.."
+ set vector_register3 ".uint128 = 0x00000001000000010000000100000001, v2_double = .0x0, 0x0., v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
-set vector_register2_vr "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef., v16_int8 = .0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef.."
+ set vector_register3_vr ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
+} else {
+ set vector_register1 ".uint128 = 0x3ff4cccccccccccc0000000000000000, v2_double = .0x0, 0x1., v4_float = .0x0, 0x0, 0xf99999a0, 0x1., v4_int32 = .0x0, 0x0, 0xcccccccc, 0x3ff4cccc., v8_int16 = .0x0, 0x0, 0x0, 0x0, 0xcccc, 0xcccc, 0xcccc, 0x3ff4., v16_int8 = .0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xf4, 0x3f.."
-set vector_register3 ".uint128 = 0x00000001000000010000000100000001, v2_double = .0x0, 0x0., v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
+ set vector_register1_vr ".uint128 = 0x3ff4cccccccccccc0000000100000001, v4_float = .0x0, 0x0, 0xf99999a0, 0x1., v4_int32 = .0x1, 0x1, 0xcccccccc, 0x3ff4cccc., v8_int16 = .0x1, 0x0, 0x1, 0x0, 0xcccc, 0xcccc, 0xcccc, 0x3ff4., v16_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xf4, 0x3f.."
-set vector_register3_vr ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1., v16_int8 = .0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1.."
+ set vector_register2 "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v2_double = .0x1, 0x1., v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead., v16_int8 = .0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde.."
+
+ set vector_register2_vr "uint128 = 0xdeadbeefdeadbeefdeadbeefdeadbeef, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0xdeadbeef, 0xdeadbeef, 0xdeadbeef, 0xdeadbeef., v8_int16 = .0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead, 0xbeef, 0xdead., v16_int8 = .0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde, 0xef, 0xbe, 0xad, 0xde.."
+
+ set vector_register3 ".uint128 = 0x00000001000000010000000100000001, v2_double = .0x0, 0x0., v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0., v16_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.."
+
+ set vector_register3_vr ".uint128 = 0x00000001000000010000000100000001, v4_float = .0x0, 0x0, 0x0, 0x0., v4_int32 = .0x1, 0x1, 0x1, 0x1., v8_int16 = .0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0., v16_int8 = .0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0.."
+}
set float_register ".raw 0xdeadbeefdeadbeef."
--- a/gdb/testsuite/gdb.base/sigbpt.exp
+++ b/gdb/testsuite/gdb.base/sigbpt.exp
@@ -82,7 +82,7 @@ gdb_test "break keeper"
set bowler_addrs bowler
set segv_addr none
gdb_test {display/i $pc}
-gdb_test "advance *bowler" "bowler.*" "advance to the bowler"
+gdb_test "advance bowler" "bowler.*" "advance to the bowler"
set test "stepping to fault"
set signame "SIGSEGV"
gdb_test_multiple "stepi" "$test" {
--- a/gdb/testsuite/gdb.base/step-bt.exp
+++ b/gdb/testsuite/gdb.base/step-bt.exp
@@ -32,7 +32,7 @@ gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
-gdb_test "break *hello" \
+gdb_test "break hello" \
"Breakpoint.*at.* file .*$srcfile, line .*" \
"breakpoint at first instruction of hello()"
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -954,6 +954,7 @@
#define AT_BASE_PLATFORM 24 /* String identifying real platform,
may differ from AT_PLATFORM. */
#define AT_RANDOM 25 /* Address of 16 random bytes. */
+#define AT_HWCAP2 26 /* Extension of AT_HWCAP. */
#define AT_EXECFN 31 /* Filename of executable. */
/* Pointer to the global system page used for system calls and other
nice things. */
--- a/include/elf/ppc64.h
+++ b/include/elf/ppc64.h
@@ -164,6 +164,60 @@ END_RELOC_NUMBERS (R_PPC64_max)
#define IS_PPC64_TLS_RELOC(R) \
((R) >= R_PPC64_TLS && (R) <= R_PPC64_DTPREL16_HIGHESTA)
+
+/* e_flags bits specifying ABI.
+ 1 for original function descriptor using ABI,
+ 2 for revised ABI without function descriptors,
+ 0 for unspecified or not using any features affected by the differences. */
+#define EF_PPC64_ABI 3
+
+/* The ELFv2 ABI uses three bits in the symbol st_other field of a
+ function definition to specify the number of instructions between a
+ function's global entry point and local entry point.
+ The global entry point is used when it is necessary to set up the
+ toc pointer (r2) for the function. Callers must enter the global
+ entry point with r12 set to the global entry point address. On
+ return from the function, r2 may have a different value to that
+ which it had on entry.
+ The local entry point is used when r2 is known to already be valid
+ for the function. There is no requirement on r12 when using the
+ local entry point, and on return r2 will contain the same value as
+ at entry.
+ A value of zero in these bits means that the function has a single
+ entry point with no requirement on r12 or r2, and that on return r2
+ will contain the same value as at entry.
+ Values of one and seven are reserved. */
+#define STO_PPC64_LOCAL_BIT 5
+#define STO_PPC64_LOCAL_MASK (7 << STO_PPC64_LOCAL_BIT)
+
+// 3 bit other field to bytes.
+static inline unsigned int
+ppc64_decode_local_entry(unsigned int other)
+{
+ return ((1 << other) >> 2) << 2;
+}
+
+// bytes to field value.
+static inline unsigned int
+ppc64_encode_local_entry(unsigned int val)
+{
+ return (val >= 4 * 4
+ ? (val >= 8 * 4
+ ? (val >= 16 * 4 ? 6 : 5)
+ : 4)
+ : (val >= 2 * 4
+ ? 3
+ : (val >= 1 * 4 ? 2 : 0)));
+}
+
+/* st_other to number of bytes. */
+#define PPC64_LOCAL_ENTRY_OFFSET(other) \
+ ppc64_decode_local_entry (((other) & STO_PPC64_LOCAL_MASK) \
+ >> STO_PPC64_LOCAL_BIT)
+/* number of bytes to st_other. */
+#define PPC64_SET_LOCAL_ENTRY_OFFSET(val) \
+ ppc64_encode_local_entry (val) << STO_PPC64_LOCAL_BIT
+
/* Specify the start of the .glink section. */
#define DT_PPC64_GLINK DT_LOPROC
