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da98603597
This PR is a blend of several kernel bumps authored by ldir taken from his
staging tree w/ some further adjustments made by me and update_kernel.sh
Summary:
Deleted upstreamed patches:
generic:
742-v5.5-net-sfp-add-support-for-module-quirks.patch
743-v5.5-net-sfp-add-some-quirks-for-GPON-modules.patch
bcm63xx:
022-v5.8-mtd-rawnand-brcmnand-correctly-verify-erased-pages.patch
024-v5.8-mtd-rawnand-brcmnand-fix-CS0-layout.patch
mediatek:
0402-net-ethernet-mtk_eth_soc-Always-call-mtk_gmac0_rgmii.patch
Deleted patches applied differently upstream:
generic:
641-sch_cake-fix-IP-protocol-handling-in-the-presence-of.patch
Manually merged patches:
generic:
395-v5.8-net-sch_cake-Take-advantage-of-skb-hash-where-appropriate.patch
bcm27xx:
950-0132-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch
layerscape:
701-net-0231-enetc-Use-DT-protocol-information-to-set-up-the-port.patch
Build system: x86_64
Build-tested: ath79/generic, bcm27xx/bcm2708, bcm27xx/bcm2711,
imx6, mvebu/cortexa9, sunxi/a53
Run-tested: Netgear R7800 (ipq806x)
No dmesg regressions, everything functional
Signed-off-by: John Audia <graysky@archlinux.us>
Tested-By: Lucian Cristian <Lucian.cristian@gmail.com> [mvebu]
Tested-By: Curtis Deptuck <curtdept@me.com> [x86/64]
[do not remove 395-v5.8-net-sch_cake-Take-advantage-... patch,
adjust and refresh patches, adjust commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Tested-By: John Audia <graysky@archlinux.us> [ipq806x]
110 lines
3.5 KiB
Diff
110 lines
3.5 KiB
Diff
From b14784e7883390c20ed3ff904892255404a5914b Mon Sep 17 00:00:00 2001
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From: Felix Fietkau <nbd@nbd.name>
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Date: Fri, 7 Jul 2017 17:05:53 +0200
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Subject: add an optional config option for stripping all unnecessary symbol exports from the kernel image
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lede-commit: bb5a40c64b7c4f4848509fa0a6625055fc9e66cc
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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include/asm-generic/vmlinux.lds.h | 18 +++++++++++++++---
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include/linux/export.h | 9 ++++++++-
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scripts/Makefile.build | 2 +-
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3 files changed, 24 insertions(+), 5 deletions(-)
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--- a/include/asm-generic/vmlinux.lds.h
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+++ b/include/asm-generic/vmlinux.lds.h
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@@ -54,6 +54,16 @@
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#define LOAD_OFFSET 0
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#endif
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+#ifndef SYMTAB_KEEP
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+#define SYMTAB_KEEP KEEP(*(SORT(___ksymtab+*)))
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+#define SYMTAB_KEEP_GPL KEEP(*(SORT(___ksymtab_gpl+*)))
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+#endif
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+
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+#ifndef SYMTAB_DISCARD
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+#define SYMTAB_DISCARD
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+#define SYMTAB_DISCARD_GPL
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+#endif
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+
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/* Align . to a 8 byte boundary equals to maximum function alignment. */
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#define ALIGN_FUNCTION() . = ALIGN(8)
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@@ -406,14 +416,14 @@
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/* Kernel symbol table: Normal symbols */ \
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__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
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__start___ksymtab = .; \
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- KEEP(*(SORT(___ksymtab+*))) \
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+ SYMTAB_KEEP \
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__stop___ksymtab = .; \
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} \
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\
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/* Kernel symbol table: GPL-only symbols */ \
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__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
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__start___ksymtab_gpl = .; \
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- KEEP(*(SORT(___ksymtab_gpl+*))) \
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+ SYMTAB_KEEP_GPL \
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__stop___ksymtab_gpl = .; \
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} \
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\
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@@ -475,7 +485,7 @@
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\
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/* Kernel symbol table: strings */ \
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__ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
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- *(__ksymtab_strings) \
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+ *(__ksymtab_strings+*) \
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} \
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\
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/* __*init sections */ \
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@@ -884,6 +894,8 @@
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EXIT_TEXT \
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EXIT_DATA \
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EXIT_CALL \
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+ SYMTAB_DISCARD \
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+ SYMTAB_DISCARD_GPL \
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*(.discard) \
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*(.discard.*) \
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*(.modinfo) \
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--- a/include/linux/export.h
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+++ b/include/linux/export.h
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@@ -98,18 +98,26 @@ struct kernel_symbol {
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#else
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+#ifdef MODULE
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+#define __EXPORT_SUFFIX(sym)
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+#else
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+#define __EXPORT_SUFFIX(sym) "+" #sym
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+#endif
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+
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#define ___export_symbol_common(sym, sec) \
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extern typeof(sym) sym; \
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__CRC_SYMBOL(sym, sec); \
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static const char __kstrtab_##sym[] \
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- __attribute__((section("__ksymtab_strings"), used, aligned(1))) \
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+ __attribute__((section("__ksymtab_strings" \
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+ __EXPORT_SUFFIX(sym)), used, aligned(1))) \
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= #sym \
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/* For every exported symbol, place a struct in the __ksymtab section */
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#define ___EXPORT_SYMBOL_NS(sym, sec, ns) \
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___export_symbol_common(sym, sec); \
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static const char __kstrtabns_##sym[] \
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- __attribute__((section("__ksymtab_strings"), used, aligned(1))) \
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+ __attribute__((section("__ksymtab_strings" \
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+ __EXPORT_SUFFIX(sym)), used, aligned(1))) \
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= #ns; \
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__KSYMTAB_ENTRY_NS(sym, sec)
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--- a/scripts/Makefile.build
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+++ b/scripts/Makefile.build
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@@ -353,7 +353,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(
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# Linker scripts preprocessor (.lds.S -> .lds)
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# ---------------------------------------------------------------------------
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quiet_cmd_cpp_lds_S = LDS $@
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- cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
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+ cmd_cpp_lds_S = $(CPP) $(EXTRA_LDSFLAGS) $(cpp_flags) -P -U$(ARCH) \
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-D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
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$(obj)/%.lds: $(src)/%.lds.S FORCE
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