diff options
Diffstat (limited to 'runtime/sym.h')
| -rw-r--r-- | runtime/sym.h | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/runtime/sym.h b/runtime/sym.h index 80c334fb..ca69345f 100644 --- a/runtime/sym.h +++ b/runtime/sym.h @@ -42,11 +42,13 @@ struct _stp_module { unsigned long dwarf_module_base; /* the stack unwind data for this module */ - void *unwind_data; + void *debug_frame; + void *eh_frame; void *unwind_hdr; - uint32_t unwind_data_len; + uint32_t debug_frame_len; + uint32_t eh_frame_len; uint32_t unwind_hdr_len; - uint32_t unwind_is_ehframe; /* unwind data comes from .eh_frame */ + unsigned long eh_frame_addr; /* Orig load address (offset) .eh_frame */ /* build-id information */ unsigned char *build_id_bits; unsigned long build_id_offset; @@ -59,10 +61,10 @@ struct _stp_module { static struct _stp_module *_stp_modules []; static unsigned _stp_num_modules; - -/* the number of modules in the arrays */ - -static unsigned long _stp_kretprobe_trampoline = 0; +/* Used in the unwinder to special case unwinding through kretprobes. */ +/* Initialized through translator (stap-symbols.h) relative to kernel */ +/* load address, fixup by transport symbols _stp_do_relocation */ +static unsigned long _stp_kretprobe_trampoline; static unsigned long _stp_module_relocate (const char *module, const char *section, unsigned long offset); static struct _stp_module *_stp_get_unwind_info (unsigned long addr); |