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authorSam Ravnborg <sam@ravnborg.org>2008-01-24 23:12:37 +0300
committerSam Ravnborg <sam@ravnborg.org>2008-01-29 01:21:18 +0300
commit588ccd732ba2d32db8228802ef9283b583d3395f (patch)
tree435ad4432c165190d70b82f8392c37b375679b53 /scripts/Makefile.modpost
parentf5eaa323eb6819d2f737ead42464efccaf2b98b9 (diff)
downloadlinux-588ccd732ba2d32db8228802ef9283b583d3395f.tar.xz
kbuild: add verbose option to Section mismatch reporting in modpost
If the config option CONFIG_SECTION_MISMATCH is not set and we see a Section mismatch present the following to the user: modpost: Found 1 section mismatch(es). To see additional details select "Enable full Section mismatch analysis" in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH). If the option CONFIG_SECTION_MISMATCH is selected then be verbose in the Section mismatch reporting from mdopost. Sample outputs: WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr The function discover_ebda() references the variable __initdata ebda_addr. This is often because discover_ebda lacks a __initdata annotation or the annotation of ebda_addr is wrong. WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit() The variable pci_serial_quirks references the function __devexit pci_plx9050_exit() If the reference is valid then annotate the variable with __exit* (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu() The symbol arch_register_cpu is exported and annotated __cpuinit Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/Makefile.modpost')
-rw-r--r--scripts/Makefile.modpost1
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index d988f5d21e3d..65e707e1ffc3 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -62,6 +62,7 @@ modpost = scripts/mod/modpost \
$(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \
$(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \
$(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
+ $(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \
$(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w)
quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules