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author | Alan Modra <amodra@gmail.com> | 2013-02-27 23:11:56 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2013-02-27 23:11:56 +0000 |
commit | 9d5781f8a245086dcdd3cd8fcddcd5b19c3a1e49 (patch) | |
tree | e53d7aa78570b4f92a31db6d49bb0e0a31374b61 /gold/ehframe.h | |
parent | 71091f23fd90c0f1d04a0471ec561f07120b702c (diff) | |
download | gdb-9d5781f8a245086dcdd3cd8fcddcd5b19c3a1e49.zip gdb-9d5781f8a245086dcdd3cd8fcddcd5b19c3a1e49.tar.gz gdb-9d5781f8a245086dcdd3cd8fcddcd5b19c3a1e49.tar.bz2 |
* target.h (Target::plt_fde_location, do_plt_fde_location): Declare.
* target.cc (Target::do_plt_fde_location): New function.
* ehframe.h (class FDE): Add post_map field to u_.from_linker,
accessor function, and constructor param.
(struct Post_fde, Post_fdes): Declare.
(Cie::write): Add post_fdes param.
* ehframe.cc (Fde::write): Use plt_fde_location.
(struct Post_fde): Define.
(Cie::write): Stash FDEs added post merge mapping.
(Eh_frame::add_ehframe_for_plt): Assert no new CIEs after mapping.
Adjust Fde constructor call. Bump final_data_size_ for post map FDEs.
(Eh_frame::do_sized_write): Arrange to write post map FDES after
other FDEs.
* powerpc.cc (Target_powerpc::do_plt_fde_location): New function.
(Target_powerpc::has_glink): New function.
(Target_powerpc::do_relax): Add eh_frame info for stubs.
(struct Eh_cie, eh_frame_cie, glink_eh_frame_fde_64,
glink_eh_frame_fde_32, default_fde): New data.
(Stub_table::eh_frame_added_): New var.
(Stub_table::find_long_branch_entry, stub_address, stub_offset):
Make const.
(Stub_table::add_eh_frame): New function.
(Output_data_glink::add_eh_frame): New function.
(Target_powerpc::make_glink_section): Call add_eh_frame.
Diffstat (limited to 'gold/ehframe.h')
-rw-r--r-- | gold/ehframe.h | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/gold/ehframe.h b/gold/ehframe.h index c3f82e9..de7c109 100644 --- a/gold/ehframe.h +++ b/gold/ehframe.h @@ -174,10 +174,14 @@ class Fde } // Create an FDE associated with a PLT. - Fde(Output_data* plt, const unsigned char* contents, size_t length) + Fde(Output_data* plt, const unsigned char* contents, size_t length, + bool post_map) : object_(NULL), contents_(reinterpret_cast<const char*>(contents), length) - { this->u_.from_linker.plt = plt; } + { + this->u_.from_linker.plt = plt; + this->u_.from_linker.post_map = post_map; + } // Return the length of this FDE. Add 4 for the length and 4 for // the offset to the CIE. @@ -196,6 +200,11 @@ class Fde output_offset); } + // Return whether this FDE was added after merge mapping. + bool + post_map() + { return this->object_ == NULL && this->u_.from_linker.post_map; } + // Write the FDE to OVIEW starting at OFFSET. FDE_ENCODING is the // encoding, from the CIE. Round up the bytes to ADDRALIGN if // necessary. ADDRESS is the virtual address of OVIEW. Record the @@ -229,12 +238,19 @@ class Fde // The only linker generated FDEs are for PLT sections, and this // points to the PLT section. Output_data* plt; + // Set if the FDE was added after merge mapping. + bool post_map; } from_linker; } u_; // FDE data. std::string contents_; }; +// FDEs stashed for later processing. + +struct Post_fde; +typedef std::vector<Post_fde*> Post_fdes; + // This class holds a CIE. class Cie @@ -284,14 +300,16 @@ class Cie set_output_offset(section_offset_type output_offset, unsigned int addralign, Merge_map*); - // Write the CIE to OVIEW starting at OFFSET. EH_FRAME_HDR is the - // exception frame header for FDE recording. Round up the bytes to - // ADDRALIGN. ADDRESS is the virtual address of OVIEW. Return the - // new offset. + // Write the CIE to OVIEW starting at OFFSET. Round up the bytes to + // ADDRALIGN. ADDRESS is the virtual address of OVIEW. + // EH_FRAME_HDR is the exception frame header for FDE recording. + // POST_FDES stashes FDEs created after mappings were done, for later + // writing. Return the new offset. template<int size, bool big_endian> section_offset_type write(unsigned char* oview, section_offset_type offset, uint64_t address, - unsigned int addralign, Eh_frame_hdr* eh_frame_hdr); + unsigned int addralign, Eh_frame_hdr* eh_frame_hdr, + Post_fdes* post_fdes); friend bool operator<(const Cie&, const Cie&); friend bool operator==(const Cie&, const Cie&); |