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authorSam Ravnborg <sam@ravnborg.org>2007-06-11 15:52:04 -0400
committerSam Ravnborg <sam@ravnborg.org>2007-06-11 15:52:04 -0400
commit2648a53acf16a837e11836203aadb219bd951a1e (patch)
treedd96f97cb7e978b39ffe43f104a2b4f902e14fcc /scripts/mod/modpost.c
parent845a2fdcbd5bc5b9f652201ee95c825827a1d521 (diff)
kbuild: fix sh64 section mismatch problems
There's a special .cranges section that is almost always generated, with data being moved to the appropriate section by the linker at a later stage. To give a bit of background, sh64 has both a native SHmedia instruction set (32-bit instructions) and SHcompact (which is compatability with normal SH -- 16-bit, a massively reduced register set, etc.). code ranges are emitted when we're using the 32-bit ABI, but not the 64-bit one. It is a special staging section used solely by binutils where code with different flags get placed (more specifically differing flags for input and output sections), before being lazily merged by the linker. The closest I've been able to find to documentation is: http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/emultempl/sh64elf.em?rev=1.10&content-type=text/x-cvsweb-markup&cvsroot=src It's an array of 8-byte Elf32_CRange structure given in http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/elf32-sh64.h?rev=1.4&content-type=text/x-cvsweb-markup&cvsroot=src that describes for which ISA a range is used. Silence the warnings by allowing references from .init.text to .cranges. The following warnings are fixed: WARNING: init/built-in.o(.cranges+0x0): Section mismatch: reference to .init.text: WARNING: init/built-in.o(.cranges+0xa): Section mismatch: reference to .init.text: WARNING: init/built-in.o(.cranges+0x14): Section mismatch: reference to .init.text: WARNING: init/built-in.o(.cranges+0x1e): Section mismatch: reference to .init.text: WARNING: init/built-in.o(.cranges+0x28): Section mismatch: reference to .init.text: WARNING: init/built-in.o(.cranges+0x32): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x50): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x5a): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x64): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0xfa): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x104): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x10e): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x14a): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x154): Section mismatch: reference to .init.text: WARNING: kernel/built-in.o(.cranges+0x15e): Section mismatch: reference to .init.text: WARNING: mm/built-in.o(.cranges+0x6e): Section mismatch: reference to .init.text: WARNING: mm/built-in.o(.cranges+0x78): Section mismatch: reference to .init.text: WARNING: mm/built-in.o(.cranges+0x82): Section mismatch: reference to .init.text: WARNING: mm/built-in.o(.cranges+0xaa): Section mismatch: reference to .init.text: WARNING: fs/built-in.o(.cranges+0x136): Section mismatch: reference to .init.text: WARNING: fs/built-in.o(.cranges+0x140): Section mismatch: reference to .init.text: WARNING: fs/built-in.o(.cranges+0x14a): Section mismatch: reference to .init.text: WARNING: fs/built-in.o(.cranges+0x168): Section mismatch: reference to .init.text: WARNING: fs/built-in.o(.cranges+0x1f4): Section mismatch: reference to .init.text: WARNING: fs/built-in.o(.cranges+0x1fe): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x302): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x30c): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x316): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x3a2): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x3ac): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x4ce): Section mismatch: reference to .init.text: WARNING: net/built-in.o(.cranges+0x4d8): Section mismatch: reference to .init.text: Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: Kaz Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/mod/modpost.c')
-rw-r--r--scripts/mod/modpost.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 8e5610d428c5..3645e980da71 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1052,6 +1052,7 @@ static int init_section_ref_ok(const char *name)
1052 ".plt", /* seen on ARCH=um build on x86_64. Harmless */ 1052 ".plt", /* seen on ARCH=um build on x86_64. Harmless */
1053 "__ftr_fixup", /* powerpc cpu feature fixup */ 1053 "__ftr_fixup", /* powerpc cpu feature fixup */
1054 "__fw_ftr_fixup", /* powerpc firmware feature fixup */ 1054 "__fw_ftr_fixup", /* powerpc firmware feature fixup */
1055 ".cranges", /* used by sh64 */
1055 NULL 1056 NULL
1056 }; 1057 };
1057 /* Start of section names */ 1058 /* Start of section names */
@@ -1132,6 +1133,7 @@ static int exit_section_ref_ok(const char *name)
1132 ".fixup", 1133 ".fixup",
1133 ".smp_locks", 1134 ".smp_locks",
1134 ".plt", /* seen on ARCH=um build on x86_64. Harmless */ 1135 ".plt", /* seen on ARCH=um build on x86_64. Harmless */
1136 ".cranges", /* used by sh64 */
1135 NULL 1137 NULL
1136 }; 1138 };
1137 /* Start of section names */ 1139 /* Start of section names */