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* alpha-tdep.h (struct gdbarch_tdep): Add members `sc_pc_offset',

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`sc_regs_offset' and `sc_fpregs_offset'.
* alpha-tdep.c (SIGFRAME_PC_OFF, SIGFRAME_REGSAVE_OFF,
SIGFRAME_FPREGSAVE_OFF): Remove defines.
(alpha_sigtramp_register_address): Rewrite to use new members of
`struct gdbarch_tdep'.
(alpha_gdbarch_init): Initialize new members of struct
gdbarch_tdep'.
* alphafbsd-tdep.c (alphafbsd_use_struct_convention): Use
ALPHA_REGISTER_SIZE instead of DEPRECATED_REGISTER_SIZE.
(alphafbsd_sigtramp_start, alphafbsd_sigtramp_end): Nre variables.
(alphafbsd_pc_in_sigtramp): Implement.
(alphafbsd_sigtramp_offset): New function.
(alphafbsd_sigcontext_addr): New function.
(alphafbsd_init_abi): Initialize signal trampoline related members
of `struct gdbarch_tdep'.
(_initialize_alphafbsd_tdep): Add prototype.
This commit is contained in:
Mark Kettenis
2003-07-11 21:49:04 +00:00
parent ba292e4cc0
commit 138e7be507
4 changed files with 80 additions and 19 deletions
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29
gdb/alpha-tdep.c
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@@ -753,24 +753,20 @@ alpha_sigtramp_frame_unwind_cache (struct frame_info *next_frame,
return info;
}
/* Return the address of REGNO in a sigtramp frame. Since this is all
arithmetic, it doesn't seem worthwhile to cache it. */
#ifndef SIGFRAME_PC_OFF
#define SIGFRAME_PC_OFF (2 * 8)
#define SIGFRAME_REGSAVE_OFF (4 * 8)
#define SIGFRAME_FPREGSAVE_OFF (SIGFRAME_REGSAVE_OFF + 32 * 8 + 8)
#endif
/* Return the address of REGNUM in a sigtramp frame. Since this is
all arithmetic, it doesn't seem worthwhile to cache it. */
static CORE_ADDR
alpha_sigtramp_register_address (CORE_ADDR sigcontext_addr, unsigned int regno)
alpha_sigtramp_register_address (CORE_ADDR sigcontext_addr, int regnum)
{
if (regno < 32)
return sigcontext_addr + SIGFRAME_REGSAVE_OFF + regno * 8;
if (regno >= ALPHA_FP0_REGNUM && regno < ALPHA_FP0_REGNUM + 32)
return sigcontext_addr + SIGFRAME_FPREGSAVE_OFF + regno * 8;
if (regno == ALPHA_PC_REGNUM)
return sigcontext_addr + SIGFRAME_PC_OFF;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (regnum >= 0 && regnum < 32)
return sigcontext_addr + tdep->sc_regs_offset + regnum * 8;
else if (regnum >= ALPHA_FP0_REGNUM && regnum < ALPHA_FP0_REGNUM + 32)
return sigcontext_addr + tdep->sc_fpregs_offset + regnum * 8;
else if (regnum == ALPHA_PC_REGNUM)
return sigcontext_addr + tdep->sc_pc_offset;
return 0;
}
@@ -1495,6 +1491,9 @@ alpha_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
tdep->dynamic_sigtramp_offset = NULL;
tdep->sigcontext_addr = NULL;
tdep->sc_pc_offset = 2 * 8;
tdep->sc_regs_offset = 4 * 8;
tdep->sc_fpregs_offset = tdep->sc_regs_offset + 32 * 8 + 8;
tdep->jb_pc = -1; /* longjmp support not enabled by default */