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Add am33 linux signal frame support.
This commit is contained in:
Kevin Buettner
parent
e92e42f575
commit
f9ec92b6cb
@ -1,3 +1,23 @@
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2006-02-28 Kevin Buettner <kevinb@redhat.com>
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* Makefile.in (mn10300-linux-tdep.o): Update dependencies.
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* mn10300-linux-tdep.c (frame.h, trad-frame.h, tramp-frame.h):
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Include.
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(am33_linux_sigframe_cache_init): New function.
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(am33_linux_sigframe, am33_linux_rt_sigframe): New signal frame
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descriptions.
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(AM33_SIGCONTEXT_D0, AM33_SIGCONTEXT_D1, AM33_SIGCONTEXT_D2)
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(AM33_SIGCONTEXT_D3, AM33_SIGCONTEXT_A0, AM33_SIGCONTEXT_A1)
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(AM33_SIGCONTEXT_A2, AM33_SIGCONTEXT_A3, AM33_SIGCONTEXT_E0)
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(AM33_SIGCONTEXT_E1, AM33_SIGCONTEXT_E2, AM33_SIGCONTEXT_E3)
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(AM33_SIGCONTEXT_E4, AM33_SIGCONTEXT_E5, AM33_SIGCONTEXT_E6)
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(AM33_SIGCONTEXT_E7, AM33_SIGCONTEXT_LAR, AM33_SIGCONTEXT_LIR)
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(AM33_SIGCONTEXT_MDR, AM33_SIGCONTEXT_MCVF, AM33_SIGCONTEXT_MCRL)
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(AM33_SIGCONTEXT_MCRH, AM33_SIGCONTEXT_MDRQ, AM33_SIGCONTEXT_SP)
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(AM33_SIGCONTEXT_EPSW, AM33_SIGCONTEXT_PC, AM33_SIGCONTEXT_FPUCONTEXT):
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New constants.
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(am33_linux_init_osabi): Register signal frame unwinders.
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2006-02-28 Kevin Buettner <kevinb@redhat.com>
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* mn10300-tdep.c (mn10300_analyze_prologue): Implement backtrack
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@ -2326,7 +2326,8 @@ mipsv4-nat.o: mipsv4-nat.c $(defs_h) $(inferior_h) $(gdbcore_h) $(target_h) \
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$(regcache_h) $(gregset_h)
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mn10300-linux-tdep.o: mn10300-linux-tdep.c $(defs_h) $(gdbcore_h) \
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$(gdb_string_h) $(regcache_h) $(mn10300_tdep_h) $(gdb_assert_h) \
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$(bfd_h) $(elf_bfd_h) $(osabi_h) $(regset_h) $(solib_svr4_h)
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$(bfd_h) $(elf_bfd_h) $(osabi_h) $(regset_h) $(solib_svr4_h) \
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$(frame_h) $(trad_frame_h) $(tramp_frame_h)
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mn10300-tdep.o: mn10300-tdep.c $(defs_h) $(arch_utils_h) $(dis_asm_h) \
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$(gdbtypes_h) $(regcache_h) $(gdb_string_h) $(gdb_assert_h) \
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$(frame_h) $(frame_unwind_h) $(frame_base_h) $(trad_frame_h) \
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@ -30,6 +30,9 @@
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#include "osabi.h"
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#include "regset.h"
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#include "solib-svr4.h"
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#include "frame.h"
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#include "trad-frame.h"
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#include "tramp-frame.h"
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#include <stdlib.h>
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@ -467,7 +470,240 @@ am33_regset_from_core_section (struct gdbarch *gdbarch,
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am33_supply_gregset_method,
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am33_collect_gregset_method);
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}
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static void
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am33_linux_sigframe_cache_init (const struct tramp_frame *self,
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struct frame_info *next_frame,
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struct trad_frame_cache *this_cache,
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CORE_ADDR func);
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static const struct tramp_frame am33_linux_sigframe = {
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SIGTRAMP_FRAME,
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1,
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{
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/* mov 119,d0 */
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{ 0x2c, -1 },
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{ 0x77, -1 },
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{ 0x00, -1 },
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/* syscall 0 */
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{ 0xf0, -1 },
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{ 0xe0, -1 },
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{ TRAMP_SENTINEL_INSN, -1 }
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},
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am33_linux_sigframe_cache_init
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};
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static const struct tramp_frame am33_linux_rt_sigframe = {
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SIGTRAMP_FRAME,
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1,
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{
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/* mov 173,d0 */
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{ 0x2c, -1 },
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{ 0xad, -1 },
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{ 0x00, -1 },
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/* syscall 0 */
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{ 0xf0, -1 },
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{ 0xe0, -1 },
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{ TRAMP_SENTINEL_INSN, -1 }
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},
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am33_linux_sigframe_cache_init
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};
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/* Relevant struct definitions for signal handling...
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From arch/mn10300/kernel/sigframe.h:
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struct sigframe
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{
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void (*pretcode)(void);
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int sig;
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struct sigcontext sc;
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struct fpucontext fpuctx;
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unsigned long extramask[_NSIG_WORDS-1];
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char retcode[8];
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};
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struct rt_sigframe
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{
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void (*pretcode)(void);
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int sig;
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struct siginfo *pinfo;
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void *puc;
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struct siginfo info;
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struct ucontext uc;
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struct fpucontext fpuctx;
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char retcode[8];
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};
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From include/asm-mn10300/ucontext.h:
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struct ucontext {
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unsigned long uc_flags;
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struct ucontext *uc_link;
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stack_t uc_stack;
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struct sigcontext uc_mcontext;
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sigset_t uc_sigmask;
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};
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From include/asm-mn10300/sigcontext.h:
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struct fpucontext {
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unsigned long fs[32];
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unsigned long fpcr;
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};
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struct sigcontext {
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unsigned long d0;
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unsigned long d1;
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unsigned long d2;
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unsigned long d3;
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unsigned long a0;
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unsigned long a1;
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unsigned long a2;
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unsigned long a3;
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unsigned long e0;
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unsigned long e1;
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unsigned long e2;
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unsigned long e3;
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unsigned long e4;
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unsigned long e5;
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unsigned long e6;
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unsigned long e7;
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unsigned long lar;
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unsigned long lir;
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unsigned long mdr;
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unsigned long mcvf;
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unsigned long mcrl;
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unsigned long mcrh;
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unsigned long mdrq;
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unsigned long sp;
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unsigned long epsw;
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unsigned long pc;
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struct fpucontext *fpucontext;
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unsigned long oldmask;
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}; */
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#define AM33_SIGCONTEXT_D0 0
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#define AM33_SIGCONTEXT_D1 4
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#define AM33_SIGCONTEXT_D2 8
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#define AM33_SIGCONTEXT_D3 12
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#define AM33_SIGCONTEXT_A0 16
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#define AM33_SIGCONTEXT_A1 20
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#define AM33_SIGCONTEXT_A2 24
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#define AM33_SIGCONTEXT_A3 28
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#define AM33_SIGCONTEXT_E0 32
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#define AM33_SIGCONTEXT_E1 36
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#define AM33_SIGCONTEXT_E2 40
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#define AM33_SIGCONTEXT_E3 44
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#define AM33_SIGCONTEXT_E4 48
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#define AM33_SIGCONTEXT_E5 52
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#define AM33_SIGCONTEXT_E6 56
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#define AM33_SIGCONTEXT_E7 60
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#define AM33_SIGCONTEXT_LAR 64
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#define AM33_SIGCONTEXT_LIR 68
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#define AM33_SIGCONTEXT_MDR 72
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#define AM33_SIGCONTEXT_MCVF 76
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#define AM33_SIGCONTEXT_MCRL 80
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#define AM33_SIGCONTEXT_MCRH 84
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#define AM33_SIGCONTEXT_MDRQ 88
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#define AM33_SIGCONTEXT_SP 92
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#define AM33_SIGCONTEXT_EPSW 96
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#define AM33_SIGCONTEXT_PC 100
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#define AM33_SIGCONTEXT_FPUCONTEXT 104
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static void
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am33_linux_sigframe_cache_init (const struct tramp_frame *self,
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struct frame_info *next_frame,
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struct trad_frame_cache *this_cache,
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CORE_ADDR func)
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{
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CORE_ADDR sc_base, fpubase;
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int i;
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sc_base = frame_unwind_register_unsigned (next_frame, E_SP_REGNUM);
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if (self == &am33_linux_sigframe)
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{
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sc_base += 8;
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}
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else
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{
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sc_base += 12;
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sc_base = get_frame_memory_unsigned (next_frame, sc_base, 4);
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sc_base += 20;
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}
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trad_frame_set_reg_addr (this_cache, E_D0_REGNUM,
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sc_base + AM33_SIGCONTEXT_D0);
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trad_frame_set_reg_addr (this_cache, E_D1_REGNUM,
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sc_base + AM33_SIGCONTEXT_D1);
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trad_frame_set_reg_addr (this_cache, E_D2_REGNUM,
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sc_base + AM33_SIGCONTEXT_D2);
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trad_frame_set_reg_addr (this_cache, E_D3_REGNUM,
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sc_base + AM33_SIGCONTEXT_D3);
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trad_frame_set_reg_addr (this_cache, E_A0_REGNUM,
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sc_base + AM33_SIGCONTEXT_A0);
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trad_frame_set_reg_addr (this_cache, E_A1_REGNUM,
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sc_base + AM33_SIGCONTEXT_A1);
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trad_frame_set_reg_addr (this_cache, E_A2_REGNUM,
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sc_base + AM33_SIGCONTEXT_A2);
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trad_frame_set_reg_addr (this_cache, E_A3_REGNUM,
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sc_base + AM33_SIGCONTEXT_A3);
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trad_frame_set_reg_addr (this_cache, E_E0_REGNUM,
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sc_base + AM33_SIGCONTEXT_E0);
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trad_frame_set_reg_addr (this_cache, E_E1_REGNUM,
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sc_base + AM33_SIGCONTEXT_E1);
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trad_frame_set_reg_addr (this_cache, E_E2_REGNUM,
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sc_base + AM33_SIGCONTEXT_E2);
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trad_frame_set_reg_addr (this_cache, E_E3_REGNUM,
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sc_base + AM33_SIGCONTEXT_E3);
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trad_frame_set_reg_addr (this_cache, E_E4_REGNUM,
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sc_base + AM33_SIGCONTEXT_E4);
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trad_frame_set_reg_addr (this_cache, E_E5_REGNUM,
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sc_base + AM33_SIGCONTEXT_E5);
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trad_frame_set_reg_addr (this_cache, E_E6_REGNUM,
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sc_base + AM33_SIGCONTEXT_E6);
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trad_frame_set_reg_addr (this_cache, E_E7_REGNUM,
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sc_base + AM33_SIGCONTEXT_E7);
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trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM,
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sc_base + AM33_SIGCONTEXT_LAR);
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trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM,
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sc_base + AM33_SIGCONTEXT_LIR);
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trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM,
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sc_base + AM33_SIGCONTEXT_MDR);
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trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM,
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sc_base + AM33_SIGCONTEXT_MCVF);
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trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM,
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sc_base + AM33_SIGCONTEXT_MCRL);
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trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM,
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sc_base + AM33_SIGCONTEXT_MDRQ);
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trad_frame_set_reg_addr (this_cache, E_SP_REGNUM,
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sc_base + AM33_SIGCONTEXT_SP);
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trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM,
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sc_base + AM33_SIGCONTEXT_EPSW);
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trad_frame_set_reg_addr (this_cache, E_PC_REGNUM,
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sc_base + AM33_SIGCONTEXT_PC);
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fpubase = get_frame_memory_unsigned (next_frame,
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sc_base + AM33_SIGCONTEXT_FPUCONTEXT, 4);
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if (fpubase)
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{
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for (i = 0; i < 32; i++)
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{
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trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i,
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fpubase + 4 * i);
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}
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trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32);
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}
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trad_frame_set_id (this_cache, frame_id_build (sc_base, func));
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}
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/* AM33 Linux osabi has been recognized.
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Now's our chance to register our corefile handling. */
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@ -478,6 +714,9 @@ am33_linux_init_osabi (struct gdbarch_info gdbinfo, struct gdbarch *gdbarch)
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am33_regset_from_core_section);
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set_solib_svr4_fetch_link_map_offsets
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(gdbarch, svr4_ilp32_fetch_link_map_offsets);
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tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe);
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tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe);
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}
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void
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