* sparc-linux-tdep.c (sparc32_linux_sigframe_init): New function.
(sparc32_linux_sigframe, sparc32_linux_rt_sigframe): New tramp_frames. (sparc_linux_sigtramp_start, sparc32_linux_sigtramp_start, sparc32_linux_rt_sigtramp_start, sparc32_linux_sigtramp_p, sparc32_linux_sigtramp_frame_cache, sparc32_linux_sigtramp_frame_this_id, sparc32_linux_sigtramp_frame_prev_register, sparc32_linux_sigtramp_frame_unwind, sparc32_linux_sigtramp_frame_sniffer): Delete. (sparc32_linux_init_abi): Register new tramp unwinders. Kill register of old sigtramp sniffer. * sparc64-linux-tdep.c (sparc64_linux_sigframe_init): New function. (sparc64_linux_rt_sigframe): New tramp frame. (sparc64_linux_sigtramp_start, sparc64_linux_sigtramp_p, sparc64_linux_sigtramp_frame_cache, sparc64_linux_sigtramp_frame_this_id, sparc64_linux_sigtramp_frame_prev_register, sparc64_linux_sigtramp_frame_unwind, sparc64_linux_sigtramp_frame_sniffer): Delete. (sparc64_linux_init_abi): Register new tramp unwinders. Kill register of old sigtramp sniffer. Makefile.in (sparc64-linux-tdep.o): Update dependencies. (sparc-linux-tdep.o): Likewise.
This commit is contained in:
David S. Miller
parent
401e7faf6a
commit
81f726abf0
@ -1,3 +1,30 @@
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2005-04-21 David S. Miller <davem@davemloft.net>
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* sparc-linux-tdep.c (sparc32_linux_sigframe_init): New function.
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(sparc32_linux_sigframe, sparc32_linux_rt_sigframe): New tramp_frames.
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(sparc_linux_sigtramp_start, sparc32_linux_sigtramp_start,
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sparc32_linux_rt_sigtramp_start, sparc32_linux_sigtramp_p,
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sparc32_linux_sigtramp_frame_cache,
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sparc32_linux_sigtramp_frame_this_id,
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sparc32_linux_sigtramp_frame_prev_register,
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sparc32_linux_sigtramp_frame_unwind,
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sparc32_linux_sigtramp_frame_sniffer): Delete.
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(sparc32_linux_init_abi): Register new tramp unwinders. Kill
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register of old sigtramp sniffer.
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* sparc64-linux-tdep.c (sparc64_linux_sigframe_init): New
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function.
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(sparc64_linux_rt_sigframe): New tramp frame.
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(sparc64_linux_sigtramp_start, sparc64_linux_sigtramp_p,
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sparc64_linux_sigtramp_frame_cache,
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sparc64_linux_sigtramp_frame_this_id,
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sparc64_linux_sigtramp_frame_prev_register,
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sparc64_linux_sigtramp_frame_unwind,
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sparc64_linux_sigtramp_frame_sniffer): Delete.
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(sparc64_linux_init_abi): Register new tramp unwinders. Kill
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register of old sigtramp sniffer.
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Makefile.in (sparc64-linux-tdep.o): Update dependencies.
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(sparc-linux-tdep.o): Likewise.
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2005-04-21 Mark Kettenis <kettenis@gnu.org>
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* ser-base.c: Include "gdb_string.h".
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@ -2567,7 +2567,7 @@ sparc64-linux-nat.o: sparc64-linux-nat.c $(defs_h) $(sparc64_tdep_h) \
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$(sparc_nat_h)
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sparc64-linux-tdep.o: sparc64-linux-tdep.c $(defs_h) $(frame_h) \
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$(frame_unwind_h) $(gdbarch_h) $(osabi_h) $(solib_svr4_h) \
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$(symtab_h) $(trad_frame_h) $(gdb_assert_h) $(gdb_string_h) \
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$(symtab_h) $(trad_frame_h) \
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$(sparc64_tdep_h)
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sparc64-nat.o: sparc64-nat.c $(defs_h) $(gdbarch_h) $(sparc64_tdep_h) \
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$(sparc_nat_h)
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@ -2590,8 +2590,8 @@ sparc64-tdep.o: sparc64-tdep.c $(defs_h) $(arch_utils_h) $(floatformat_h) \
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$(sparc64_tdep_h)
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sparc-linux-tdep.o: sparc-linux-tdep.c $(defs_h) $(floatformat_h) $(frame_h) \
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$(frame_unwind_h) $(gdbarch_h) $(gdbcore_h) $(osabi_h) $(regcache_h) \
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$(solib_svr4_h) $(symtab_h) $(trad_frame_h) $(gdb_assert_h) \
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$(gdb_string_h) $(sparc_tdep_h)
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$(solib_svr4_h) $(symtab_h) $(trad_frame_h) \
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$(sparc_tdep_h)
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sparc-nat.o: sparc-nat.c $(defs_h) $(inferior_h) $(regcache_h) $(target_h) \
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$(gdb_assert_h) $(gdb_string_h) $(gdb_wait_h) $(sparc_tdep_h) \
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$(sparc_nat_h) $(inf_ptrace_h)
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@ -23,6 +23,7 @@
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#include "floatformat.h"
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#include "frame.h"
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#include "frame-unwind.h"
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#include "tramp-frame.h"
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#include "gdbarch.h"
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#include "gdbcore.h"
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#include "osabi.h"
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@ -31,12 +32,9 @@
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#include "symtab.h"
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#include "trad-frame.h"
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include "sparc-tdep.h"
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/* Recognizing signal handler frames. */
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/* Signal trampoline support. */
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/* GNU/Linux has two flavors of signals. Normal signal handlers, and
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"realtime" (RT) signals. The RT signals can provide additional
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@ -69,195 +67,86 @@
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/* The instruction sequence for RT signals is
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mov __NR_rt_sigreturn, %g1 ! hex: 0x82102065
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ta {0x10,0x6d} ! hex: 0x91d02010 or 0x91d0206d
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ta {0x10,0x6d} ! hex: 0x91d02010
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The effect is to call the system call rt_sigreturn. The trap number
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is variable based upon whether this is a 32-bit or 64-bit sparc binary.
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The effect is to call the system call rt_sigreturn.
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Note that 64-bit binaries only use this RT signal return method. */
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#define LINUX32_RT_SIGTRAMP_INSN0 0x82102065
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#define LINUX32_RT_SIGTRAMP_INSN1 0x91d02010
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/* If PC is in a sigtramp routine consisting of the instructions INSN0
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and INSN1, return the address of the start of the routine.
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Otherwise, return 0. */
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static void sparc32_linux_sigframe_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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CORE_ADDR
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sparc_linux_sigtramp_start (struct frame_info *next_frame,
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ULONGEST insn0, ULONGEST insn1)
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static const struct tramp_frame sparc32_linux_sigframe = {
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SIGTRAMP_FRAME,
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4,
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{
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{ LINUX32_SIGTRAMP_INSN0, -1 },
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{ LINUX32_SIGTRAMP_INSN1, -1 },
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{ TRAMP_SENTINEL_INSN, -1 }
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},
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sparc32_linux_sigframe_init
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};
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static const struct tramp_frame sparc32_linux_rt_sigframe = {
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SIGTRAMP_FRAME,
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4,
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{
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{ LINUX32_RT_SIGTRAMP_INSN0, -1 },
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{ LINUX32_RT_SIGTRAMP_INSN1, -1 },
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{ TRAMP_SENTINEL_INSN, -1 }
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},
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sparc32_linux_sigframe_init
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};
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static void
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sparc32_linux_sigframe_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 pc = frame_pc_unwind (next_frame);
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ULONGEST word0, word1;
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unsigned char buf[8]; /* Two instructions. */
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/* We only recognize a signal trampoline if PC is at the start of
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one of the instructions. We optimize for finding the PC at the
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start of the instruction sequence, as will be the case when the
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trampoline is not the first frame on the stack. We assume that
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in the case where the PC is not at the start of the instruction
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sequence, there will be a few trailing readable bytes on the
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stack. */
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if (!safe_frame_unwind_memory (next_frame, pc, buf, sizeof buf))
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return 0;
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word0 = extract_unsigned_integer (buf, 4);
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if (word0 != insn0)
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{
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if (word0 != insn1)
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return 0;
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pc -= 4;
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if (!safe_frame_unwind_memory (next_frame, pc, buf, sizeof buf))
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return 0;
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word0 = extract_unsigned_integer (buf, 4);
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}
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word1 = extract_unsigned_integer (buf + 4, 4);
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if (word0 != insn0 || word1 != insn1)
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return 0;
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return pc;
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}
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static CORE_ADDR
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sparc32_linux_sigtramp_start (struct frame_info *next_frame)
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{
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return sparc_linux_sigtramp_start (next_frame, LINUX32_SIGTRAMP_INSN0,
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LINUX32_SIGTRAMP_INSN1);
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}
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static CORE_ADDR
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sparc32_linux_rt_sigtramp_start (struct frame_info *next_frame)
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{
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return sparc_linux_sigtramp_start (next_frame, LINUX32_RT_SIGTRAMP_INSN0,
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LINUX32_RT_SIGTRAMP_INSN1);
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}
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static int
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sparc32_linux_sigtramp_p (struct frame_info *next_frame)
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{
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CORE_ADDR pc = frame_pc_unwind (next_frame);
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char *name;
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find_pc_partial_function (pc, &name, NULL, NULL);
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/* If we have NAME, we can optimize the search. The trampolines are
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named __sigreturn_stub and __rt_sigreturn_stub. However, they
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aren't dynamically exported from the shared C library, so the
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trampoline may appear to be part of the preceding function. This
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should always be sigaction, __sigaction, or __libc_sigaction (all
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aliases to the same function). */
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if (name == NULL || strstr (name, "sigaction") != NULL)
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return (sparc32_linux_sigtramp_start (next_frame) != 0
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|| sparc32_linux_rt_sigtramp_start (next_frame) != 0);
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return (strcmp ("__sigreturn_stub", name) == 0
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|| strcmp ("__rt_sigreturn_stub", name) == 0);
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}
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static struct sparc_frame_cache *
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sparc32_linux_sigtramp_frame_cache (struct frame_info *next_frame,
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void **this_cache)
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{
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struct sparc_frame_cache *cache;
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CORE_ADDR sigcontext_addr, addr;
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CORE_ADDR base, addr;
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int regnum;
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if (*this_cache)
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return *this_cache;
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cache = sparc32_frame_cache (next_frame, this_cache);
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gdb_assert (cache == *this_cache);
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/* ??? What about signal trampolines that aren't frameless? */
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regnum = SPARC_SP_REGNUM;
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cache->base = frame_unwind_register_unsigned (next_frame, regnum);
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regnum = SPARC_O1_REGNUM;
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sigcontext_addr = frame_unwind_register_unsigned (next_frame, regnum);
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addr = sparc32_linux_sigtramp_start (next_frame);
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if (addr == 0)
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{
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/* If this is a RT signal trampoline, adjust SIGCONTEXT_ADDR
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accordingly. */
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addr = sparc32_linux_rt_sigtramp_start (next_frame);
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if (addr)
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sigcontext_addr += 128;
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else
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addr = frame_func_unwind (next_frame);
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}
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cache->pc = addr;
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cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
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base = frame_unwind_register_unsigned (next_frame, SPARC_O1_REGNUM);
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if (self == &sparc32_linux_rt_sigframe)
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base += 128;
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/* Offsets from <bits/sigcontext.h> */
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cache->saved_regs[SPARC32_PSR_REGNUM].addr = sigcontext_addr + 0;
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cache->saved_regs[SPARC32_PC_REGNUM].addr = sigcontext_addr + 4;
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cache->saved_regs[SPARC32_NPC_REGNUM].addr = sigcontext_addr + 8;
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cache->saved_regs[SPARC32_Y_REGNUM].addr = sigcontext_addr + 12;
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trad_frame_set_reg_addr (this_cache, SPARC32_PSR_REGNUM, base + 0x00);
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trad_frame_set_reg_addr (this_cache, SPARC32_PC_REGNUM, base + 0x04);
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trad_frame_set_reg_addr (this_cache, SPARC32_NPC_REGNUM, base + 0x08);
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trad_frame_set_reg_addr (this_cache, SPARC32_Y_REGNUM, base + 0x0c);
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/* Since %g0 is always zero, keep the identity encoding. */
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for (regnum = SPARC_G1_REGNUM, addr = sigcontext_addr + 20;
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regnum <= SPARC_O7_REGNUM; regnum++, addr += 4)
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cache->saved_regs[regnum].addr = addr;
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addr = base + 0x14;
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for (regnum = SPARC_G1_REGNUM; regnum <= SPARC_O7_REGNUM; regnum++)
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{
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trad_frame_set_reg_addr (this_cache, regnum, addr);
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addr += 4;
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}
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for (regnum = SPARC_L0_REGNUM, addr = cache->base;
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regnum <= SPARC_I7_REGNUM; regnum++, addr += 4)
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cache->saved_regs[regnum].addr = addr;
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return cache;
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base = addr = frame_unwind_register_unsigned (next_frame, SPARC_SP_REGNUM);
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for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
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{
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trad_frame_set_reg_addr (this_cache, regnum, addr);
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addr += 4;
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}
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trad_frame_set_id (this_cache, frame_id_build (base, func));
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}
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static void
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sparc32_linux_sigtramp_frame_this_id (struct frame_info *next_frame,
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void **this_cache,
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struct frame_id *this_id)
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{
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struct sparc_frame_cache *cache =
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sparc32_linux_sigtramp_frame_cache (next_frame, this_cache);
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(*this_id) = frame_id_build (cache->base, cache->pc);
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}
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static void
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sparc32_linux_sigtramp_frame_prev_register (struct frame_info *next_frame,
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void **this_cache,
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int regnum, int *optimizedp,
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enum lval_type *lvalp,
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CORE_ADDR *addrp,
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int *realnump, void *valuep)
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{
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struct sparc_frame_cache *cache =
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sparc32_linux_sigtramp_frame_cache (next_frame, this_cache);
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trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
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optimizedp, lvalp, addrp, realnump, valuep);
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}
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static const struct frame_unwind sparc32_linux_sigtramp_frame_unwind =
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{
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SIGTRAMP_FRAME,
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sparc32_linux_sigtramp_frame_this_id,
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sparc32_linux_sigtramp_frame_prev_register
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};
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static const struct frame_unwind *
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sparc32_linux_sigtramp_frame_sniffer (struct frame_info *next_frame)
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{
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if (sparc32_linux_sigtramp_p (next_frame))
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return &sparc32_linux_sigtramp_frame_unwind;
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return NULL;
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}
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static void
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sparc32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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tramp_frame_prepend_unwinder (gdbarch, &sparc32_linux_sigframe);
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tramp_frame_prepend_unwinder (gdbarch, &sparc32_linux_rt_sigframe);
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/* GNU/Linux is very similar to Solaris ... */
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sparc32_sol2_init_abi (info, gdbarch);
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@ -268,8 +157,6 @@ sparc32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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set_gdbarch_long_double_bit (gdbarch, 64);
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set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
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frame_unwind_append_sniffer (gdbarch, sparc32_linux_sigtramp_frame_sniffer);
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/* Enable TLS support. */
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set_gdbarch_fetch_tls_load_module_address (gdbarch,
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svr4_fetch_objfile_link_map);
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@ -22,15 +22,13 @@
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#include "defs.h"
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#include "frame.h"
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#include "frame-unwind.h"
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#include "tramp-frame.h"
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#include "gdbarch.h"
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#include "osabi.h"
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#include "solib-svr4.h"
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#include "symtab.h"
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#include "trad-frame.h"
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include "sparc64-tdep.h"
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/* The instruction sequence for RT signals is
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@ -43,162 +41,62 @@
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#define LINUX64_RT_SIGTRAMP_INSN0 0x82102065
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#define LINUX64_RT_SIGTRAMP_INSN1 0x91d0206d
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/* If PC is in a sigtramp routine consisting of the instructions
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LINUX64_RT_SIGTRAMP_INSN0 and LINUX64_RT_SIGTRAMP_INSN1, return
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the address of the start of the routine. Otherwise, return 0. */
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static CORE_ADDR
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sparc64_linux_sigtramp_start (struct frame_info *next_frame)
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static void sparc64_linux_sigframe_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 sparc64_linux_rt_sigframe = {
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SIGTRAMP_FRAME,
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4,
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{
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{ LINUX64_RT_SIGTRAMP_INSN0, -1 },
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{ LINUX64_RT_SIGTRAMP_INSN1, -1 },
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{ TRAMP_SENTINEL_INSN, -1 }
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},
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sparc64_linux_sigframe_init
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};
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static void
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sparc64_linux_sigframe_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 pc = frame_pc_unwind (next_frame);
|
||||
ULONGEST word0, word1;
|
||||
unsigned char buf[8]; /* Two instructions. */
|
||||
|
||||
/* We only recognize a signal trampoline if PC is at the start of
|
||||
one of the instructions. We optimize for finding the PC at the
|
||||
start of the instruction sequence, as will be the case when the
|
||||
trampoline is not the first frame on the stack. We assume that
|
||||
in the case where the PC is not at the start of the instruction
|
||||
sequence, there will be a few trailing readable bytes on the
|
||||
stack. */
|
||||
|
||||
if (!safe_frame_unwind_memory (next_frame, pc, buf, sizeof buf))
|
||||
return 0;
|
||||
|
||||
word0 = extract_unsigned_integer (buf, 4);
|
||||
if (word0 != LINUX64_RT_SIGTRAMP_INSN0)
|
||||
{
|
||||
if (word0 != LINUX64_RT_SIGTRAMP_INSN1)
|
||||
return 0;
|
||||
|
||||
pc -= 4;
|
||||
if (!safe_frame_unwind_memory (next_frame, pc, buf, sizeof buf))
|
||||
return 0;
|
||||
|
||||
word0 = extract_unsigned_integer (buf, 4);
|
||||
}
|
||||
|
||||
word1 = extract_unsigned_integer (buf + 4, 4);
|
||||
if (word0 != LINUX64_RT_SIGTRAMP_INSN0
|
||||
|| word1 != LINUX64_RT_SIGTRAMP_INSN1)
|
||||
return 0;
|
||||
|
||||
return pc;
|
||||
}
|
||||
|
||||
static int
|
||||
sparc64_linux_sigtramp_p (struct frame_info *next_frame)
|
||||
{
|
||||
CORE_ADDR pc = frame_pc_unwind (next_frame);
|
||||
char *name;
|
||||
|
||||
find_pc_partial_function (pc, &name, NULL, NULL);
|
||||
|
||||
/* If we have NAME, we can optimize the search. The trampolines is
|
||||
named __rt_sigreturn_stub. However, is isn't dynamically exported
|
||||
from the shared C library, so the trampoline may appear to be part
|
||||
of the preceding function. This should always be sigaction,
|
||||
__sigaction, or __libc_sigaction (all aliases to the same function). */
|
||||
if (name == NULL || strstr (name, "sigaction") != NULL)
|
||||
return (sparc64_linux_sigtramp_start (next_frame) != 0);
|
||||
|
||||
return (strcmp ("__rt_sigreturn_stub", name) == 0);
|
||||
}
|
||||
|
||||
static struct sparc_frame_cache *
|
||||
sparc64_linux_sigtramp_frame_cache (struct frame_info *next_frame,
|
||||
void **this_cache)
|
||||
{
|
||||
struct sparc_frame_cache *cache;
|
||||
CORE_ADDR sigcontext_addr, addr;
|
||||
CORE_ADDR base, addr;
|
||||
int regnum;
|
||||
|
||||
if (*this_cache)
|
||||
return *this_cache;
|
||||
|
||||
cache = sparc_frame_cache (next_frame, this_cache);
|
||||
gdb_assert (cache == *this_cache);
|
||||
|
||||
regnum = SPARC_SP_REGNUM;
|
||||
cache->base = frame_unwind_register_unsigned (next_frame, regnum);
|
||||
if (cache->base & 1)
|
||||
cache->base += BIAS;
|
||||
|
||||
regnum = SPARC_O1_REGNUM;
|
||||
sigcontext_addr = frame_unwind_register_unsigned (next_frame, regnum);
|
||||
|
||||
/* If this is a RT signal trampoline, adjust SIGCONTEXT_ADDR
|
||||
accordingly. */
|
||||
addr = sparc64_linux_sigtramp_start (next_frame);
|
||||
if (addr)
|
||||
sigcontext_addr += 128;
|
||||
else
|
||||
addr = frame_func_unwind (next_frame);
|
||||
|
||||
cache->pc = addr;
|
||||
|
||||
cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
|
||||
base = frame_unwind_register_unsigned (next_frame, SPARC_O1_REGNUM);
|
||||
base += 128;
|
||||
|
||||
/* Offsets from <bits/sigcontext.h> */
|
||||
|
||||
/* Since %g0 is always zero, keep the identity encoding. */
|
||||
for (addr = sigcontext_addr + 8, regnum = SPARC_G1_REGNUM;
|
||||
regnum <= SPARC_O7_REGNUM; regnum++, addr += 8)
|
||||
cache->saved_regs[regnum].addr = addr;
|
||||
addr = base + 0x08;
|
||||
for (regnum = SPARC_G1_REGNUM; regnum <= SPARC_O7_REGNUM; regnum++)
|
||||
{
|
||||
trad_frame_set_reg_addr (this_cache, regnum, addr);
|
||||
addr += 8;
|
||||
}
|
||||
|
||||
cache->saved_regs[SPARC64_STATE_REGNUM].addr = addr + 0;
|
||||
cache->saved_regs[SPARC64_PC_REGNUM].addr = addr + 8;
|
||||
cache->saved_regs[SPARC64_NPC_REGNUM].addr = addr + 16;
|
||||
cache->saved_regs[SPARC64_Y_REGNUM].addr = addr + 24;
|
||||
cache->saved_regs[SPARC64_FPRS_REGNUM].addr = addr + 28;
|
||||
trad_frame_set_reg_addr (this_cache, SPARC64_STATE_REGNUM, addr + 0x00);
|
||||
trad_frame_set_reg_addr (this_cache, SPARC64_PC_REGNUM, addr + 0x08);
|
||||
trad_frame_set_reg_addr (this_cache, SPARC64_NPC_REGNUM, addr + 0x10);
|
||||
trad_frame_set_reg_addr (this_cache, SPARC64_Y_REGNUM, addr + 0x18);
|
||||
trad_frame_set_reg_addr (this_cache, SPARC64_FPRS_REGNUM, addr + 0x1c);
|
||||
|
||||
for (regnum = SPARC_L0_REGNUM, addr = cache->base;
|
||||
regnum <= SPARC_I7_REGNUM; regnum++, addr += 8)
|
||||
cache->saved_regs[regnum].addr = addr;
|
||||
addr = frame_unwind_register_unsigned (next_frame, SPARC_SP_REGNUM);
|
||||
if (addr & 1)
|
||||
addr += BIAS;
|
||||
|
||||
return cache;
|
||||
}
|
||||
|
||||
static void
|
||||
sparc64_linux_sigtramp_frame_this_id (struct frame_info *next_frame,
|
||||
void **this_cache,
|
||||
struct frame_id *this_id)
|
||||
{
|
||||
struct sparc_frame_cache *cache =
|
||||
sparc64_linux_sigtramp_frame_cache (next_frame, this_cache);
|
||||
|
||||
(*this_id) = frame_id_build (cache->base, cache->pc);
|
||||
}
|
||||
|
||||
static void
|
||||
sparc64_linux_sigtramp_frame_prev_register (struct frame_info *next_frame,
|
||||
void **this_cache,
|
||||
int regnum, int *optimizedp,
|
||||
enum lval_type *lvalp,
|
||||
CORE_ADDR *addrp,
|
||||
int *realnump, void *valuep)
|
||||
{
|
||||
struct sparc_frame_cache *cache =
|
||||
sparc64_linux_sigtramp_frame_cache (next_frame, this_cache);
|
||||
|
||||
trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
|
||||
optimizedp, lvalp, addrp, realnump, valuep);
|
||||
}
|
||||
|
||||
static const struct frame_unwind sparc64_linux_sigtramp_frame_unwind =
|
||||
{
|
||||
SIGTRAMP_FRAME,
|
||||
sparc64_linux_sigtramp_frame_this_id,
|
||||
sparc64_linux_sigtramp_frame_prev_register
|
||||
};
|
||||
|
||||
static const struct frame_unwind *
|
||||
sparc64_linux_sigtramp_frame_sniffer (struct frame_info *next_frame)
|
||||
{
|
||||
if (sparc64_linux_sigtramp_p (next_frame))
|
||||
return &sparc64_linux_sigtramp_frame_unwind;
|
||||
|
||||
return NULL;
|
||||
base = addr;
|
||||
for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
|
||||
{
|
||||
trad_frame_set_reg_addr (this_cache, regnum, addr);
|
||||
addr += 8;
|
||||
}
|
||||
trad_frame_set_id (this_cache, frame_id_build (base, func));
|
||||
}
|
||||
|
||||
static void
|
||||
@ -206,7 +104,7 @@ sparc64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
||||
{
|
||||
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
||||
|
||||
frame_unwind_append_sniffer (gdbarch, sparc64_linux_sigtramp_frame_sniffer);
|
||||
tramp_frame_prepend_unwinder (gdbarch, &sparc64_linux_rt_sigframe);
|
||||
|
||||
/* GNU/Linux is very similar to Solaris ... */
|
||||
sparc64_sol2_init_abi (info, gdbarch);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user