From: Peter Chubb <peterc@gelato.unsw.edu.au> Date: Fri, 10 Aug 2007 20:01:10 +0000 (-0700) Subject: fix compilation with gcc 4.2 X-Git-Tag: MMI-PSA29.97-13-9~40805 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cd5bfea278987ebfe60f3ff92a01696b17c4f978;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git fix compilation with gcc 4.2 gcc-4.2 is a lot more picky about its symbol handling. EXPORT_SYMBOL no longer works on symbols that are undefined or defined with static scope. For example, with CONFIG_PROFILE off, I see: kernel/profile.c:206: error: __ksymtab_profile_event_unregister causes a section type conflict kernel/profile.c:205: error: __ksymtab_profile_event_register causes a section type conflict This patch moves the EXPORTs inside the #ifdef CONFIG_PROFILE, so we only try to export symbols that are defined. Also, in kernel/kprobes.c there's an EXPORT_SYMBOL_GPL() for jprobes_return, which if CONFIG_JPROBES is undefined is a static inline and gives the same error. And in drivers/acpi/resources/rsxface.c, there's an ACPI_EXPORT_SYMBOPL() for a static symbol. If it's static, it's not accessible from outside the compilation unit, so should bot be exported. These three changes allow building a zx1_defconfig kernel with gcc 4.2 on IA64. [akpm@linux-foundation.org: export jpobe_return properly] Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c index f63813a358c5..4c3fd4cdaf73 100644 --- a/drivers/acpi/resources/rsxface.c +++ b/drivers/acpi/resources/rsxface.c @@ -474,8 +474,6 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context) return (AE_CTRL_TERMINATE); } -ACPI_EXPORT_SYMBOL(acpi_rs_match_vendor_resource) - /******************************************************************************* * * FUNCTION: acpi_walk_resources diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 3e9f513a728d..4b8a4493c541 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1063,6 +1063,11 @@ EXPORT_SYMBOL_GPL(register_kprobe); EXPORT_SYMBOL_GPL(unregister_kprobe); EXPORT_SYMBOL_GPL(register_jprobe); EXPORT_SYMBOL_GPL(unregister_jprobe); +#ifdef CONFIG_KPROBES EXPORT_SYMBOL_GPL(jprobe_return); +#endif + +#ifdef CONFIG_KPROBES EXPORT_SYMBOL_GPL(register_kretprobe); EXPORT_SYMBOL_GPL(unregister_kretprobe); +#endif diff --git a/kernel/profile.c b/kernel/profile.c index 5b20fe977bed..cb1e37d2dac3 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -199,11 +199,11 @@ EXPORT_SYMBOL_GPL(register_timer_hook); EXPORT_SYMBOL_GPL(unregister_timer_hook); EXPORT_SYMBOL_GPL(task_handoff_register); EXPORT_SYMBOL_GPL(task_handoff_unregister); +EXPORT_SYMBOL_GPL(profile_event_register); +EXPORT_SYMBOL_GPL(profile_event_unregister); #endif /* CONFIG_PROFILING */ -EXPORT_SYMBOL_GPL(profile_event_register); -EXPORT_SYMBOL_GPL(profile_event_unregister); #ifdef CONFIG_SMP /*