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gold: Place .note.gnu.property section before other note sections

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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.
This commit is contained in:
H.J. Lu
2021-10-25 08:42:24 -07:00
parent a4b0231e17
commit f85dcfc3af
2 changed files with 9 additions and 3 deletions
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3
gold/layout.cc
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@ -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,

9
gold/layout.h
View File

@ -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