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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-10-25 08:42:24 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-10-26 16:24:24 -0700 |
| commit | f85dcfc3af9cf7c2859241253f1d37b1133abea2 (patch) | |
| tree | e1ccd878a523c3cfd340abcd5b12e7f952acf8fa /gold | |
| parent | a4b0231e179607e47b1cdf1fe15c5dc25e482fad (diff) | |
| download | gdb-f85dcfc3af9cf7c2859241253f1d37b1133abea2.zip gdb-f85dcfc3af9cf7c2859241253f1d37b1133abea2.tar.gz gdb-f85dcfc3af9cf7c2859241253f1d37b1133abea2.tar.bz2 | |
gold: Place .note.gnu.property section before other note sections
Place the .note.gnu.property section before all other note sections to
avoid being placed between other note sections with different alignments.
PR gold/28494
* layout.cc (Layout::create_note): Set order to ORDER_PROPERTY_NOTE
for the .note.gnu.property section.
* layout.h (Output_section_order): Add ORDER_PROPERTY_NOTE.
Diffstat (limited to 'gold')
| -rw-r--r-- | gold/layout.cc | 3 | ||||
| -rw-r--r-- | gold/layout.h | 9 |
2 files changed, 9 insertions, 3 deletions
diff --git a/gold/layout.cc b/gold/layout.cc index a27cb07..38e9bce 100644 --- a/gold/layout.cc +++ b/gold/layout.cc @@ -3245,7 +3245,8 @@ Layout::create_note(const char* name, int note_type, if (allocate) { flags = elfcpp::SHF_ALLOC; - order = ORDER_RO_NOTE; + order = (note_type == elfcpp::NT_GNU_PROPERTY_TYPE_0 + ? ORDER_PROPERTY_NOTE : ORDER_RO_NOTE); } Output_section* os = this->choose_output_section(NULL, section_name, elfcpp::SHT_NOTE, diff --git a/gold/layout.h b/gold/layout.h index 0b37800..05c3171 100644 --- a/gold/layout.h +++ b/gold/layout.h @@ -399,8 +399,13 @@ enum Output_section_order // linker can pick it up quickly. ORDER_INTERP, - // Loadable read-only note sections come next so that the PT_NOTE - // segment is on the first page of the executable. + // The .note.gnu.property section comes next so that the PT_NOTE + // segment is on the first page of the executable and it won't be + // placed between other note sections with different alignments. + ORDER_PROPERTY_NOTE, + + // Loadable read-only note sections come after the .note.gnu.property + // section. ORDER_RO_NOTE, // Put read-only sections used by the dynamic linker early in the |