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Date: Wed, 09 May 2012 09:49:34 +0100
From: "Jan Beulich" <JBeulich@...e.com>
To: "Michal Marek" <mmarek@...e.cz>
Cc: <linux-kbuild@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/5, resend] kbuild: move some .pci_fixup_* sections
into .init
.pci_fixup_final is only used from .init.text, and hence can (along
with the respective handler functions) reside in .init.*.
Several other .pci_fixup_* sections are needed only during boot and
suspend/resume, and can therefore be moved into .init.* if
!CONFIG_PM.
While generally section mismatch checking is being turned on by this
patch for all of .pci_fixup_*, for .pci_fixup_header it is being
suppressed for the moment as it caused way too much fallout.
Theoretically all respective handlers must get their __init/__devinit
removed, as this gets processed from a non-__init, non-__devinit
function.
Signed-off-by: Jan Beulich <jbeulich@...e.com>
---
include/asm-generic/vmlinux.lds.h | 45 ++++++++++++++++++++------------------
scripts/mod/modpost.c | 11 +++++----
2 files changed, 31 insertions(+), 25 deletions(-)
--- 3.4-rc6/include/asm-generic/vmlinux.lds.h
+++ 3.4-rc6-pci-fixup-sections/include/asm-generic/vmlinux.lds.h
@@ -98,6 +98,19 @@
#define MEM_DISCARD(sec) *(.mem##sec)
#endif
+#define PCI_FIXUPS(what) \
+ VMLINUX_SYMBOL(__start_pci_fixups_##what) = .; \
+ *(.pci_fixup_##what) \
+ VMLINUX_SYMBOL(__end_pci_fixups_##what) = .;
+
+#ifdef CONFIG_PM
+#define PCI_FIXUPS_PM_KEEP PCI_FIXUPS
+#define PCI_FIXUPS_PM_DISCARD(what)
+#else
+#define PCI_FIXUPS_PM_KEEP(what)
+#define PCI_FIXUPS_PM_DISCARD PCI_FIXUPS
+#endif
+
#ifdef CONFIG_FTRACE_MCOUNT_RECORD
#define MCOUNT_REC() . = ALIGN(8); \
VMLINUX_SYMBOL(__start_mcount_loc) = .; \
@@ -234,27 +247,12 @@
\
/* PCI quirks */ \
.pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
- *(.pci_fixup_early) \
- VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
- *(.pci_fixup_header) \
- VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
- *(.pci_fixup_final) \
- VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
- *(.pci_fixup_enable) \
- VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
- *(.pci_fixup_resume) \
- VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \
- *(.pci_fixup_resume_early) \
- VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \
- *(.pci_fixup_suspend) \
- VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \
+ PCI_FIXUPS(early) \
+ PCI_FIXUPS(header) \
+ PCI_FIXUPS(enable) \
+ PCI_FIXUPS_PM_KEEP(resume) \
+ PCI_FIXUPS_PM_KEEP(resume_early) \
+ PCI_FIXUPS_PM_KEEP(suspend) \
} \
\
/* Built-in firmware blobs */ \
@@ -486,6 +484,11 @@
CPU_DISCARD(init.data) \
MEM_DISCARD(init.data) \
KERNEL_CTORS() \
+ . = ALIGN(16); \
+ PCI_FIXUPS(final) \
+ PCI_FIXUPS_PM_DISCARD(resume) \
+ PCI_FIXUPS_PM_DISCARD(resume_early) \
+ PCI_FIXUPS_PM_DISCARD(suspend) \
*(.init.rodata) \
MCOUNT_REC() \
FTRACE_EVENTS() \
--- 3.4-rc6/scripts/mod/modpost.c
+++ 3.4-rc6-pci-fixup-sections/scripts/mod/modpost.c
@@ -853,7 +853,8 @@ static void check_section(const char *mo
#define ALL_INIT_DATA_SECTIONS \
".init.setup$", ".init.rodata$", \
".devinit.rodata$", ".cpuinit.rodata$", ".meminit.rodata$", \
- ".init.data$", ".devinit.data$", ".cpuinit.data$", ".meminit.data$"
+ ".init.data$", ".devinit.data$", ".cpuinit.data$", ".meminit.data$", \
+ ".pci_fixup_final$", ".pci_fixup_suspend*", ".pci_fixup_resume*"
#define ALL_EXIT_DATA_SECTIONS \
".exit.data$", ".devexit.data$", ".cpuexit.data$", ".memexit.data$"
@@ -870,11 +871,13 @@ static void check_section(const char *mo
#define ALL_INIT_SECTIONS INIT_SECTIONS, ALL_XXXINIT_SECTIONS
#define ALL_EXIT_SECTIONS EXIT_SECTIONS, ALL_XXXEXIT_SECTIONS
-#define DATA_SECTIONS ".data$", ".data.rel$"
+#define DATA_SECTIONS ".data$", ".data.rel$", ".pci_fixup$", \
+ ".pci_fixup_early$", ".pci_fixup_enable$"/*, ".pci_fixup_header$"*/
#define TEXT_SECTIONS ".text$"
-#define INIT_SECTIONS ".init.*"
-#define DEV_INIT_SECTIONS ".devinit.*"
+#define INIT_SECTIONS ".init.*", ".pci_fixup_final$"
+#define DEV_INIT_SECTIONS ".devinit.*", \
+ ".pci_fixup_suspend*", ".pci_fixup_resume*"
#define CPU_INIT_SECTIONS ".cpuinit.*"
#define MEM_INIT_SECTIONS ".meminit.*"
--
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