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By default, "unwind-libunwind-local.c" gets SP/IP register number according to the host platform, for remote unwind, we should use register number for target platform. Fix this by define LIBUNWIND_ARCH_REG_SP/IP in the wrapper file of x86_32 platform. Signed-off-by: He Kuang <hekuang@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1466578626-92406-3-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/*
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* This file setups defines to compile arch specific binary from the
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* generic one.
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*
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* The function 'LIBUNWIND__ARCH_REG_ID' name is set according to arch
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* name and the defination of this function is included directly from
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* 'arch/x86/util/unwind-libunwind.c', to make sure that this function
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* is defined no matter what arch the host is.
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*
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* Finally, the arch specific unwind methods are exported which will
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* be assigned to each x86 thread.
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*/
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#define REMOTE_UNWIND_LIBUNWIND
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/* Define arch specific functions & regs for libunwind, should be
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* defined before including "unwind.h"
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*/
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#define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__x86_reg_id(regnum)
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#define LIBUNWIND__ARCH_REG_IP PERF_REG_X86_IP
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#define LIBUNWIND__ARCH_REG_SP PERF_REG_X86_SP
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#include "unwind.h"
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#include "debug.h"
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#include "libunwind-x86.h"
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#include <../../../../arch/x86/include/uapi/asm/perf_regs.h>
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/* HAVE_ARCH_X86_64_SUPPORT is used in'arch/x86/util/unwind-libunwind.c'
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* for x86_32, we undef it to compile code for x86_32 only.
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*/
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#undef HAVE_ARCH_X86_64_SUPPORT
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#include "../../arch/x86/util/unwind-libunwind.c"
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/* Explicitly define NO_LIBUNWIND_DEBUG_FRAME, because non-ARM has no
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* dwarf_find_debug_frame() function.
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*/
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#ifndef NO_LIBUNWIND_DEBUG_FRAME
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#define NO_LIBUNWIND_DEBUG_FRAME
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#endif
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#include "util/unwind-libunwind-local.c"
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struct unwind_libunwind_ops *
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x86_32_unwind_libunwind_ops = &_unwind_libunwind_ops;
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