diff options
Diffstat (limited to 'dwarf_wrappers.cxx')
-rw-r--r-- | dwarf_wrappers.cxx | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/dwarf_wrappers.cxx b/dwarf_wrappers.cxx index d7183dc3..0cb3cc0f 100644 --- a/dwarf_wrappers.cxx +++ b/dwarf_wrappers.cxx @@ -47,15 +47,46 @@ void dwfl_assert(const std::string& desc, bool condition) } -// Helper for dealing with selected portions of libdwfl in a more readable -// fashion, and with specific cleanup / checking / logging options. +#if !_ELFUTILS_PREREQ(0, 143) +// Elfutils prior to 0.143 didn't use attr_integrate when looking up the +// decl_file or decl_line, so the attributes would sometimes be missed. For +// those old versions, we define custom implementations to do the integration. const char * -dwarf_diename_integrate (Dwarf_Die *die) +dwarf_decl_file_integrate (Dwarf_Die *die) { Dwarf_Attribute attr_mem; - return dwarf_formstring (dwarf_attr_integrate (die, DW_AT_name, &attr_mem)); + Dwarf_Sword idx = 0; + if (dwarf_formsdata (dwarf_attr_integrate (die, DW_AT_decl_file, &attr_mem), + &idx) != 0 + || idx == 0) + return NULL; + + Dwarf_Die cudie; + Dwarf_Files *files = NULL; + if (dwarf_getsrcfiles (dwarf_diecu (die, &cudie, NULL, NULL), + &files, NULL) != 0) + return NULL; + + return dwarf_filesrc(files, idx, NULL, NULL); } +int +dwarf_decl_line_integrate (Dwarf_Die *die, int *linep) +{ + Dwarf_Attribute attr_mem; + Dwarf_Sword line; + + int res = dwarf_formsdata (dwarf_attr_integrate + (die, DW_AT_decl_line, &attr_mem), + &line); + if (res == 0) + *linep = line; + + return res; +} + +#endif // !_ELFUTILS_PREREQ(0, 143) + /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |