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| author | Steven Bosscher <steven@gcc.gnu.org> | 2010-05-07 21:37:43 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2010-05-07 21:37:43 +0000 |
| commit | c082f9f3173cf8cfa7b57107ffb6c6999f4872dc (patch) | |
| tree | b036b0c810fc469ae0e5ec3f6d1436e32e0ef493 /gcc/doc | |
| parent | 18bc5398c1526d6a852b2f18152ebcfe6b706dcf (diff) | |
| download | gcc-c082f9f3173cf8cfa7b57107ffb6c6999f4872dc.zip gcc-c082f9f3173cf8cfa7b57107ffb6c6999f4872dc.tar.gz gcc-c082f9f3173cf8cfa7b57107ffb6c6999f4872dc.tar.bz2 | |
configure.ac (--enable-lto): Add x86_64-apple-darwin* as a platform that supports LTO.
ChangeLog:
* configure.ac (--enable-lto): Add x86_64-apple-darwin* as
a platform that supports LTO.
* configure: Regenerate.
gcc/ChangeLog:
* config.gcc (i[34567]86-*-darwin*, x86_64-*-darwin*): Add
lto-macho as lto_binary_reader.
* target.h (struct gcc_target): New hooks lto_start and lto_end.
* target-def.h (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Define.
* cgraphunit.c (ipa_passes): Wrap LTO assembler output generation
in lto_start and lto_end calls.
(is_elf_or_coff): Rename to maybe_lto_object_file. Add Mach-O
magic numbers.
(scan_prog_file): Update is_elf_or_coff call.
* doc/tm.text (TARGET_ASM_LTO_START, TARGET_ASM_LTO_END): Document.
* collect2.c (main): Fix enum comparison.
* config/darwin-protos.h (darwin_asm_lto_start, darwin_asm_lto_end):
Add prototypes.
* darwin9.h (LINK_COMMAND_SPEC): Pass -flto and -fwhopr to the linker.
* darwin.h (LINK_COMMAND_SPEC): Likewise. Define TARGET_ASM_LTO_START
and TARGET_ASM_LTO_END.
* darwin.c: Include obstack.h and lto-streamer.h.
(lto_section_names_offset, lto_section_names_obstack,
lto_asm_out_file, lto_asm_out_name, saved_asm_out_file): New static
global variables.
(LTO_SEGMENT_NAME, LTO_NAMES_SECTION): New defines.
(darwin_asm_lto_start): New function. Redirect output to asm_out_file
to a temporary file.
(darwin_asm_lto_end): New function. Restore asm_out_file.
(darwin_asm_named_section): For LTO sections, replace the name with
the offset of the section name in a string table, and build this
table.
(darwin_file_start): Initialize global vars for LTO support.
(darwin_file_end): If output to asm_out_file was redirected, append it
to the proper asm_out_file here. Add the section names section.
lto/ChangeLog:
* lto.h (struct lto_file_struct): Document offset member.
* lto-endian.h: New file.
* lto-macho.h: New file.
* lto-macho.c: New file.
* Make-lang.in: Add rule for lto-macho.o.
From-SVN: r159173
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 7eb49d6..96fc62c 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -7184,6 +7184,18 @@ need to do other things in that hook, have your hook function call this function. @end deftypefun +@deftypefn {Target Hook} void TARGET_ASM_LTO_START (void) +Output to @code{asm_out_file} any text which the assembler expects +to find at the start of an LTO section. The default is to output +nothing. +@end deftypefn + +@deftypefn {Target Hook} void TARGET_ASM_LTO_END (void) +Output to @code{asm_out_file} any text which the assembler expects +to find at the end of an LTO section. The default is to output +nothing. +@end deftypefn + @deftypefn {Target Hook} void TARGET_ASM_CODE_END (void) Output to @code{asm_out_file} any text which is needed before emitting unwind info and debug info at the end of a file. Some targets emit |