Messages in this thread Patch in this message | | | Date | Tue, 8 May 2012 15:20:49 -0700 | From | "tip-bot for H. Peter Anvin" <> | Subject | [tip:x86/trampoline] x86, realmode: Add .text64 section, make barrier symbols absolute |
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Commit-ID: 487f50ffeb142d8f86fff6e43a8852ce3d46c173 Gitweb: http://git.kernel.org/tip/487f50ffeb142d8f86fff6e43a8852ce3d46c173 Author: H. Peter Anvin <hpa@linux.intel.com> AuthorDate: Tue, 8 May 2012 21:22:32 +0300 Committer: H. Peter Anvin <hpa@linux.intel.com> CommitDate: Tue, 8 May 2012 11:47:18 -0700
x86, realmode: Add .text64 section, make barrier symbols absolute
Add a .text64 section. The purpose of this is to keep 16-, 32- and 64-bit code segregated into separate sections, mainly to keep disassembly sane.
Move barrier symbols out of sections to avoid the "symbol in empty section" problem in some versions of GNU ld.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1336501366-28617-10-git-send-email-jarkko.sakkinen@intel.com --- arch/x86/realmode/rm/realmode.lds.S | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/x86/realmode/rm/realmode.lds.S b/arch/x86/realmode/rm/realmode.lds.S index 91b83ea..4d4afca 100644 --- a/arch/x86/realmode/rm/realmode.lds.S +++ b/arch/x86/realmode/rm/realmode.lds.S @@ -32,8 +32,8 @@ SECTIONS } . = ALIGN(PAGE_SIZE); + pa_text_start = .; .text : { - pa_text_start = .; *(.text) *(.text.*) } @@ -41,9 +41,14 @@ SECTIONS .text32 : { *(.text32) *(.text32.*) - pa_ro_end = .; } + .text64 : { + *(.text64) + *(.text64.*) + } + pa_ro_end = .; + . = ALIGN(PAGE_SIZE); .data : { *(.data) @@ -59,8 +64,8 @@ SECTIONS . = ALIGN(4); .signature : { *(.signature) - pa_end = .; } + pa_end = .; /DISCARD/ : { *(.note*)
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