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2005-11-19 Randolph Chung <tausq@debian.org>

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* hppa-hpux-tdep.c (hppa_hpux_sigtramp_frame_unwind_cache): Use
	HPPA_HPUX_SS_* constants.  Ensure "off" is large enough to hold
	64-bit offset.  Set proper signal context offset for 64-bit
	programs.  Set pc properly for signal frames.
This commit is contained in:
Randolph Chung 2005-11-19 12:55:55 +00:00
parent 765697c9ec
commit 27b08a0cb4
2 changed files with 43 additions and 27 deletions
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7
gdb/ChangeLog
View file

@ -1,3 +1,10 @@
2005-11-19 Randolph Chung <tausq@debian.org>
* hppa-hpux-tdep.c (hppa_hpux_sigtramp_frame_unwind_cache): Use
HPPA_HPUX_SS_* constants. Ensure "off" is large enough to hold
64-bit offset. Set proper signal context offset for 64-bit
programs. Set pc properly for signal frames.
2005-11-19 Randolph Chung <tausq@debian.org>
* hppa-hpux-tdep.c (hppa_hpux_sigtramp_unwind_sniffer): Rely on the

63
gdb/hppa-hpux-tdep.c
View file

@ -49,6 +49,26 @@
#define IS_32BIT_TARGET(_gdbarch) \
((gdbarch_tdep (_gdbarch))->bytes_per_address == 4)
/* Bit in the `ss_flag' member of `struct save_state' that indicates
that the 64-bit register values are live. From
<machine/save_state.h>. */
#define HPPA_HPUX_SS_WIDEREGS 0x40
/* Offsets of various parts of `struct save_state'. From
<machine/save_state.h>. */
#define HPPA_HPUX_SS_FLAGS_OFFSET 0
#define HPPA_HPUX_SS_NARROW_OFFSET 4
#define HPPA_HPUX_SS_FPBLOCK_OFFSET 256
#define HPPA_HPUX_SS_WIDE_OFFSET 640
/* The size of `struct save_state. */
#define HPPA_HPUX_SAVE_STATE_SIZE 1152
/* The size of `struct pa89_save_state', which corresponds to PA-RISC
1.1, the lowest common denominator that we support. */
#define HPPA_HPUX_PA89_SAVE_STATE_SIZE 512
/* Forward declarations. */
extern void _initialize_hppa_hpux_tdep (void);
extern initialize_file_ftype _initialize_hppa_hpux_tdep;
@ -1158,8 +1178,8 @@ hppa_hpux_sigtramp_frame_unwind_cache (struct frame_info *next_frame,
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
struct hppa_hpux_sigtramp_unwind_cache *info;
unsigned int flag;
CORE_ADDR sp, scptr;
int i, incr, off, szoff;
CORE_ADDR sp, scptr, off;
int i, incr, szoff;
if (*this_cache)
return *this_cache;
@ -1170,25 +1190,29 @@ hppa_hpux_sigtramp_frame_unwind_cache (struct frame_info *next_frame,
sp = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
scptr = sp - 1352;
if (IS_32BIT_TARGET (gdbarch))
scptr = sp - 1352;
else
scptr = sp - 1520;
off = scptr;
/* See /usr/include/machine/save_state.h for the structure of the save_state_t
structure. */
flag = read_memory_unsigned_integer(scptr, 4);
if (!(flag & 0x40))
flag = read_memory_unsigned_integer(scptr + HPPA_HPUX_SS_FLAGS_OFFSET, 4);
if (!(flag & HPPA_HPUX_SS_WIDEREGS))
{
/* Narrow registers. */
off = scptr + offsetof (save_state_t, ss_narrow);
off = scptr + HPPA_HPUX_SS_NARROW_OFFSET;
incr = 4;
szoff = 0;
}
else
{
/* Wide registers. */
off = scptr + offsetof (save_state_t, ss_wide) + 8;
off = scptr + HPPA_HPUX_SS_WIDE_OFFSET + 8;
incr = 8;
szoff = (tdep->bytes_per_address == 4 ? 4 : 0);
}
@ -1203,11 +1227,15 @@ hppa_hpux_sigtramp_frame_unwind_cache (struct frame_info *next_frame,
{
if (hppa_hpux_tramp_reg[i] > 0)
info->saved_regs[hppa_hpux_tramp_reg[i]].addr = off + szoff;
off += incr;
}
/* TODO: fp regs */
info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].addr =
info->saved_regs[HPPA_RP_REGNUM].addr;
info->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
return info;
@ -1760,25 +1788,6 @@ hppa_hpux_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
/* Bit in the `ss_flag' member of `struct save_state' that indicates
that the 64-bit register values are live. From
<machine/save_state.h>. */
#define HPPA_HPUX_SS_WIDEREGS 0x40
/* Offsets of various parts of `struct save_state'. From
<machine/save_state.h>. */
#define HPPA_HPUX_SS_FLAGS_OFFSET 0
#define HPPA_HPUX_SS_NARROW_OFFSET 4
#define HPPA_HPUX_SS_FPBLOCK_OFFSET 256
#define HPPA_HPUX_SS_WIDE_OFFSET 640
/* The size of `struct save_state. */
#define HPPA_HPUX_SAVE_STATE_SIZE 1152
/* The size of `struct pa89_save_state', which corresponds to PA-RISC
1.1, the lowest common denominator that we support. */
#define HPPA_HPUX_PA89_SAVE_STATE_SIZE 512
static void
hppa_hpux_supply_ss_narrow (struct regcache *regcache,
int regnum, const char *save_state)