mirrors/binutils-gdb
1
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-11-26 03:24:41 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

gold/

Browse Source 
* layout.cc (finalize): Define __ehdr_start symbol if applicable.
This commit is contained in:
Roland McGrath 2012-06-22 18:02:24 +00:00
parent b4a58790db
commit eabc84f484
2 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
gold/ChangeLog
View File

@ -1,3 +1,7 @@
2012-06-22 Roland McGrath <mcgrathr@google.com>
* layout.cc (finalize): Define __ehdr_start symbol if applicable.
2012-06-12 Rafael Ávila de Espíndola <respindola@mozilla.com>
* plugin.cc (Plugin::load): Handle position independent executables.

10
gold/layout.cc
View File

@ -2509,6 +2509,16 @@ Layout::finalize(const Input_objects* input_objects, Symbol_table* symtab,
while (target->may_relax()
&& target->relax(pass, input_objects, symtab, this, task));
// If there is a load segment that contains the file and program headers,
// provide a symbol __ehdr_start pointing there.
// A program can use this to examine itself robustly.
if (load_seg != NULL)
symtab->define_in_output_segment("__ehdr_start", NULL,
Symbol_table::PREDEFINED, load_seg, 0, 0,
elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
elfcpp::STV_DEFAULT, 0,
Symbol::SEGMENT_START, true);
// Set the file offsets of all the non-data sections we've seen so
// far which don't have to wait for the input sections. We need
// this in order to finalize local symbols in non-allocated