diff options
Diffstat (limited to 'libdwfl/libdwflP.h')
| -rw-r--r-- | libdwfl/libdwflP.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/libdwfl/libdwflP.h b/libdwfl/libdwflP.h index 7d5f795c..31e6e190 100644 --- a/libdwfl/libdwflP.h +++ b/libdwfl/libdwflP.h @@ -1,5 +1,5 @@ /* Internal definitions for libdwfl. - Copyright (C) 2005-2015 Red Hat, Inc. + Copyright (C) 2005-2015, 2018 Red Hat, Inc. This file is part of elfutils. This file is free software; you can redistribute it and/or modify @@ -190,6 +190,8 @@ struct Dwfl_Module Elf_Data *symxndxdata; /* Data in the extended section index table. */ Elf_Data *aux_symxndxdata; /* Data in the extended auxiliary table. */ + char *elfdir; /* The dir where we found the main Elf. */ + Dwarf *dw; /* libdw handle for its debugging info. */ Dwarf *alt; /* Dwarf used for dwarf_setalt, or NULL. */ int alt_fd; /* descriptor, only valid when alt != NULL. */ @@ -401,6 +403,14 @@ struct dwfl_arange size_t arange; /* Index in Dwarf_Aranges. */ }; +#define __LIBDWFL_REMOTE_MEM_CACHE_SIZE 4096 +/* Structure for caching remote memory reads as used by __libdwfl_pid_arg. */ +struct __libdwfl_remote_mem_cache +{ + Dwarf_Addr addr; /* Remote address. */ + Dwarf_Off len; /* Zero if cleared, otherwise likely 4K. */ + unsigned char buf[__LIBDWFL_REMOTE_MEM_CACHE_SIZE]; /* The actual cache. */ +}; /* Structure used for keeping track of ptrace attaching a thread. Shared by linux-pid-attach and linux-proc-maps. If it has been setup @@ -411,6 +421,10 @@ struct __libdwfl_pid_arg DIR *dir; /* Elf for /proc/PID/exe. Set to NULL if it couldn't be opened. */ Elf *elf; + /* Remote memory cache, NULL if there is no memory cached. + Should be cleared on detachment (because that makes the thread + runnable and the cache invalid). */ + struct __libdwfl_remote_mem_cache *mem_cache; /* fd for /proc/PID/exe. Set to -1 if it couldn't be opened. */ int elf_fd; /* It is 0 if not used. */ @@ -449,15 +463,6 @@ extern const char *__libdwfl_getsym (Dwfl_Module *mod, int ndx, GElf_Sym *sym, bool *resolved, bool adjust_st_value) internal_function; -/* Internal wrapper for old dwfl_module_addrsym and new dwfl_module_addrinfo. - adjust_st_value set to true returns adjusted SYM st_value, set to false - it will not adjust SYM at all, but does match against resolved values. */ -extern const char *__libdwfl_addrsym (Dwfl_Module *mod, GElf_Addr addr, - GElf_Off *off, GElf_Sym *sym, - GElf_Word *shndxp, Elf **elfp, - Dwarf_Addr *bias, - bool adjust_st_value) internal_function; - extern void __libdwfl_module_free (Dwfl_Module *mod) internal_function; /* Find the main ELF file, update MOD->elferr and/or MOD->main.elf. */ |