From: "Luis R. Rodriguez" <mcgrof@kernel.org>
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Subject: [RFC v3 06/13] ranges.h: add helpers to build and identify Linux section ranges
Date: Fri, 22 Jul 2016 21:24:40 +0000 [thread overview]
Message-ID: <1469222687-1600-7-git-send-email-mcgrof@kernel.org> (raw)
In-Reply-To: <1469222687-1600-1-git-send-email-mcgrof@kernel.org>
Section ranges are on one of the types of custom sections
types used in Linux. This provides a series of helpers for
defining them and using them. Most importantly this also
enables us to avoid modifying the linker script when we
add new section range.
It turns out a lot of custom sections are actually section ranges,
and these are typically spelled out in their architecture specific
asm/sections.h file -- we anable architectures to override what asm
is used for section ranges but start by defult trusting the asm-generic
version all around.
v3: new in this series, uses copyleft-next
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
arch/alpha/include/asm/ranges.h | 6 ++++
arch/arc/include/asm/ranges.h | 6 ++++
arch/arm/include/asm/ranges.h | 6 ++++
arch/arm64/include/asm/ranges.h | 6 ++++
arch/avr32/include/asm/ranges.h | 6 ++++
arch/blackfin/include/asm/ranges.h | 6 ++++
arch/c6x/include/asm/ranges.h | 6 ++++
arch/cris/include/asm/ranges.h | 6 ++++
arch/frv/include/asm/ranges.h | 6 ++++
arch/h8300/include/asm/ranges.h | 6 ++++
arch/hexagon/include/asm/ranges.h | 6 ++++
arch/ia64/include/asm/ranges.h | 6 ++++
arch/m32r/include/asm/ranges.h | 6 ++++
arch/m68k/include/asm/ranges.h | 6 ++++
arch/metag/include/asm/ranges.h | 6 ++++
arch/microblaze/include/asm/ranges.h | 6 ++++
arch/mips/include/asm/ranges.h | 6 ++++
arch/mn10300/include/asm/ranges.h | 6 ++++
arch/nios2/include/asm/ranges.h | 6 ++++
arch/openrisc/include/asm/ranges.h | 6 ++++
arch/parisc/include/asm/ranges.h | 6 ++++
arch/powerpc/include/asm/ranges.h | 6 ++++
arch/s390/include/asm/ranges.h | 6 ++++
arch/score/include/asm/ranges.h | 6 ++++
arch/sh/include/asm/ranges.h | 6 ++++
arch/sparc/include/asm/ranges.h | 6 ++++
arch/tile/include/asm/ranges.h | 6 ++++
arch/um/include/asm/ranges.h | 6 ++++
arch/unicore32/include/asm/ranges.h | 6 ++++
arch/x86/include/asm/ranges.h | 6 ++++
arch/xtensa/include/asm/ranges.h | 6 ++++
include/asm-generic/ranges.h | 70 ++++++++++++++++++++++++++++++++++++
include/linux/ranges.h | 54 ++++++++++++++++++++++++++++
33 files changed, 310 insertions(+)
create mode 100644 arch/alpha/include/asm/ranges.h
create mode 100644 arch/arc/include/asm/ranges.h
create mode 100644 arch/arm/include/asm/ranges.h
create mode 100644 arch/arm64/include/asm/ranges.h
create mode 100644 arch/avr32/include/asm/ranges.h
create mode 100644 arch/blackfin/include/asm/ranges.h
create mode 100644 arch/c6x/include/asm/ranges.h
create mode 100644 arch/cris/include/asm/ranges.h
create mode 100644 arch/frv/include/asm/ranges.h
create mode 100644 arch/h8300/include/asm/ranges.h
create mode 100644 arch/hexagon/include/asm/ranges.h
create mode 100644 arch/ia64/include/asm/ranges.h
create mode 100644 arch/m32r/include/asm/ranges.h
create mode 100644 arch/m68k/include/asm/ranges.h
create mode 100644 arch/metag/include/asm/ranges.h
create mode 100644 arch/microblaze/include/asm/ranges.h
create mode 100644 arch/mips/include/asm/ranges.h
create mode 100644 arch/mn10300/include/asm/ranges.h
create mode 100644 arch/nios2/include/asm/ranges.h
create mode 100644 arch/openrisc/include/asm/ranges.h
create mode 100644 arch/parisc/include/asm/ranges.h
create mode 100644 arch/powerpc/include/asm/ranges.h
create mode 100644 arch/s390/include/asm/ranges.h
create mode 100644 arch/score/include/asm/ranges.h
create mode 100644 arch/sh/include/asm/ranges.h
create mode 100644 arch/sparc/include/asm/ranges.h
create mode 100644 arch/tile/include/asm/ranges.h
create mode 100644 arch/um/include/asm/ranges.h
create mode 100644 arch/unicore32/include/asm/ranges.h
create mode 100644 arch/x86/include/asm/ranges.h
create mode 100644 arch/xtensa/include/asm/ranges.h
create mode 100644 include/asm-generic/ranges.h
create mode 100644 include/linux/ranges.h
diff --git a/arch/alpha/include/asm/ranges.h b/arch/alpha/include/asm/ranges.h
new file mode 100644
index 000000000000..b7bc4107bc75
--- /dev/null
+++ b/arch/alpha/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ALPHA_RANGES_H
+#define _ASM_ALPHA_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ALPHA_RANGES_H */
diff --git a/arch/arc/include/asm/ranges.h b/arch/arc/include/asm/ranges.h
new file mode 100644
index 000000000000..a761243bf79f
--- /dev/null
+++ b/arch/arc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARC_RANGES_H
+#define _ASM_ARC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARC_RANGES_H */
diff --git a/arch/arm/include/asm/ranges.h b/arch/arm/include/asm/ranges.h
new file mode 100644
index 000000000000..fb059e205f90
--- /dev/null
+++ b/arch/arm/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM_RANGES_H
+#define _ASM_ARM_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARM_RANGES_H */
diff --git a/arch/arm64/include/asm/ranges.h b/arch/arm64/include/asm/ranges.h
new file mode 100644
index 000000000000..0e0b52cc8d41
--- /dev/null
+++ b/arch/arm64/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM64_RANGES_H
+#define _ASM_ARM64_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARM64_RANGES_H */
diff --git a/arch/avr32/include/asm/ranges.h b/arch/avr32/include/asm/ranges.h
new file mode 100644
index 000000000000..0f50a1af03e1
--- /dev/null
+++ b/arch/avr32/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_AVR32_RANGES_H
+#define _ASM_AVR32_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_AVR32_RANGES_H */
diff --git a/arch/blackfin/include/asm/ranges.h b/arch/blackfin/include/asm/ranges.h
new file mode 100644
index 000000000000..e1d133639a45
--- /dev/null
+++ b/arch/blackfin/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_BLACKFIN_RANGES_H
+#define _ASM_BLACKFIN_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_BLACKFIN_RANGES_H */
diff --git a/arch/c6x/include/asm/ranges.h b/arch/c6x/include/asm/ranges.h
new file mode 100644
index 000000000000..0e8e6e149d55
--- /dev/null
+++ b/arch/c6x/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_C6X_RANGES_H
+#define _ASM_C6X_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_C6X_RANGES_H */
diff --git a/arch/cris/include/asm/ranges.h b/arch/cris/include/asm/ranges.h
new file mode 100644
index 000000000000..8567f55ae4ea
--- /dev/null
+++ b/arch/cris/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_CRIS_RANGES_H
+#define _ASM_CRIS_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_CRIS_RANGES_H */
diff --git a/arch/frv/include/asm/ranges.h b/arch/frv/include/asm/ranges.h
new file mode 100644
index 000000000000..f11a6f0fb0bd
--- /dev/null
+++ b/arch/frv/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_FRV_RANGES_H
+#define _ASM_FRV_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_FRV_RANGES_H */
diff --git a/arch/h8300/include/asm/ranges.h b/arch/h8300/include/asm/ranges.h
new file mode 100644
index 000000000000..ab08bd6bd067
--- /dev/null
+++ b/arch/h8300/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_H8300_RANGES_H
+#define _ASM_H8300_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_H8300_RANGES_H */
diff --git a/arch/hexagon/include/asm/ranges.h b/arch/hexagon/include/asm/ranges.h
new file mode 100644
index 000000000000..56e5241abc6b
--- /dev/null
+++ b/arch/hexagon/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_HEXAGON_RANGES_H
+#define _ASM_HEXAGON_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_HEXAGON_RANGES_H */
diff --git a/arch/ia64/include/asm/ranges.h b/arch/ia64/include/asm/ranges.h
new file mode 100644
index 000000000000..4e69cbcfd0e7
--- /dev/null
+++ b/arch/ia64/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_IA64_RANGES_H
+#define _ASM_IA64_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_IA64_RANGES_H */
diff --git a/arch/m32r/include/asm/ranges.h b/arch/m32r/include/asm/ranges.h
new file mode 100644
index 000000000000..dd33a0b94de4
--- /dev/null
+++ b/arch/m32r/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_M32R_RANGES_H
+#define _ASM_M32R_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_M32R_RANGES_H */
diff --git a/arch/m68k/include/asm/ranges.h b/arch/m68k/include/asm/ranges.h
new file mode 100644
index 000000000000..292a00baa73e
--- /dev/null
+++ b/arch/m68k/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_M68K_RANGES_H
+#define _ASM_M68K_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_M68K_RANGES_H */
diff --git a/arch/metag/include/asm/ranges.h b/arch/metag/include/asm/ranges.h
new file mode 100644
index 000000000000..42a77c098c85
--- /dev/null
+++ b/arch/metag/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_METAG_RANGES_H
+#define _ASM_METAG_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_METAG_RANGES_H */
diff --git a/arch/microblaze/include/asm/ranges.h b/arch/microblaze/include/asm/ranges.h
new file mode 100644
index 000000000000..48d58e38f1e1
--- /dev/null
+++ b/arch/microblaze/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_RANGES_H
+#define _ASM_MICROBLAZE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MICROBLAZE_RANGES_H */
diff --git a/arch/mips/include/asm/ranges.h b/arch/mips/include/asm/ranges.h
new file mode 100644
index 000000000000..675a55cd3719
--- /dev/null
+++ b/arch/mips/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MIPS_RANGES_H
+#define _ASM_MIPS_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MIPS_RANGES_H */
diff --git a/arch/mn10300/include/asm/ranges.h b/arch/mn10300/include/asm/ranges.h
new file mode 100644
index 000000000000..fb7f43a3c19d
--- /dev/null
+++ b/arch/mn10300/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MN10300_RANGES_H
+#define _ASM_MN10300_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MN10300_RANGES_H */
diff --git a/arch/nios2/include/asm/ranges.h b/arch/nios2/include/asm/ranges.h
new file mode 100644
index 000000000000..ab1991981c0f
--- /dev/null
+++ b/arch/nios2/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_NIOS2_RANGES_H
+#define _ASM_NIOS2_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_NIOS2_RANGES_H */
diff --git a/arch/openrisc/include/asm/ranges.h b/arch/openrisc/include/asm/ranges.h
new file mode 100644
index 000000000000..a64be842983f
--- /dev/null
+++ b/arch/openrisc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_OPENRISC_RANGES_H
+#define _ASM_OPENRISC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_OPENRISC_RANGES_H */
diff --git a/arch/parisc/include/asm/ranges.h b/arch/parisc/include/asm/ranges.h
new file mode 100644
index 000000000000..dd6b5c215941
--- /dev/null
+++ b/arch/parisc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_PARISC_RANGES_H
+#define _ASM_PARISC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_PARISC_RANGES_H */
diff --git a/arch/powerpc/include/asm/ranges.h b/arch/powerpc/include/asm/ranges.h
new file mode 100644
index 000000000000..240c51a210d4
--- /dev/null
+++ b/arch/powerpc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_POWERPC_RANGES_H
+#define _ASM_POWERPC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_POWERPC_RANGES_H */
diff --git a/arch/s390/include/asm/ranges.h b/arch/s390/include/asm/ranges.h
new file mode 100644
index 000000000000..d4788451f176
--- /dev/null
+++ b/arch/s390/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_S390_RANGES_H
+#define _ASM_S390_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_S390_RANGES_H */
diff --git a/arch/score/include/asm/ranges.h b/arch/score/include/asm/ranges.h
new file mode 100644
index 000000000000..d67f859eeda3
--- /dev/null
+++ b/arch/score/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_RANGES_H
+#define _ASM_SCORE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SCORE_RANGES_H */
diff --git a/arch/sh/include/asm/ranges.h b/arch/sh/include/asm/ranges.h
new file mode 100644
index 000000000000..99df0b65f40a
--- /dev/null
+++ b/arch/sh/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SH_RANGES_H
+#define _ASM_SH_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SH_RANGES_H */
diff --git a/arch/sparc/include/asm/ranges.h b/arch/sparc/include/asm/ranges.h
new file mode 100644
index 000000000000..8ff4765ccd9b
--- /dev/null
+++ b/arch/sparc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SPARC_RANGES_H
+#define _ASM_SPARC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SPARC_RANGES_H */
diff --git a/arch/tile/include/asm/ranges.h b/arch/tile/include/asm/ranges.h
new file mode 100644
index 000000000000..ceda3fb075e0
--- /dev/null
+++ b/arch/tile/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_TILE_RANGES_H
+#define _ASM_TILE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_TILE_RANGES_H */
diff --git a/arch/um/include/asm/ranges.h b/arch/um/include/asm/ranges.h
new file mode 100644
index 000000000000..7c9c20e47879
--- /dev/null
+++ b/arch/um/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_RANGES_H
+#define _ASM_UM_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_UM_RANGES_H */
diff --git a/arch/unicore32/include/asm/ranges.h b/arch/unicore32/include/asm/ranges.h
new file mode 100644
index 000000000000..92526340d73c
--- /dev/null
+++ b/arch/unicore32/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UNICORE32_RANGES_H
+#define _ASM_UNICORE32_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_UNICORE32_RANGES_H */
diff --git a/arch/x86/include/asm/ranges.h b/arch/x86/include/asm/ranges.h
new file mode 100644
index 000000000000..4a0c824d4082
--- /dev/null
+++ b/arch/x86/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_X86_RANGES_H
+#define _ASM_X86_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_X86_RANGES_H */
diff --git a/arch/xtensa/include/asm/ranges.h b/arch/xtensa/include/asm/ranges.h
new file mode 100644
index 000000000000..c7360d1c9c85
--- /dev/null
+++ b/arch/xtensa/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_XTENSA_RANGES_H
+#define _ASM_XTENSA_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_XTENSA_RANGES_H */
diff --git a/include/asm-generic/ranges.h b/include/asm-generic/ranges.h
new file mode 100644
index 000000000000..0d54c632f714
--- /dev/null
+++ b/include/asm-generic/ranges.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_GENERIC_RANGES_H_
+#define _ASM_GENERIC_RANGES_H_
+/*
+ * Copyright (C) 2016 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#ifdef __KERNEL__
+# include <asm/sections.h>
+#endif /* __KERNEL__ */
+
+#define SECTION_TYPE_RANGES rng
+
+#define SECTION_RNG(section, name) \
+ SECTION_TYPE(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY)
+
+#define SECTION_RNG_LEVEL(section, name, level) \
+ SECTION_TYPE(section, SECTION_TYPE_RANGES, name, level)
+
+#define SECTION_RANGE_ALL(section) \
+ SECTION_TYPE_ALL(section,SECTION_TYPE_RANGES)
+
+#ifndef section_rng
+# define section_rng(section, name, flags) \
+ section_type(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags)
+#endif
+
+#ifndef section_rng_asmtype
+# define section_rng_asmtype(section, name, flags, asmtype) \
+ section_type_asmtype(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags, asmtype)
+#endif
+
+#ifndef section_rng_level
+# define section_rng_level(section, name, level, flags) \
+ section_type(section, SECTION_TYPE_RANGES, name, level, flags)
+#endif
+
+#ifndef push_section_rng
+# define push_section_rng(section, name, flags) \
+ push_section_type(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags)
+#endif
+
+#ifndef push_section_rng_level
+# define push_section_rng_level(section, name, level, flags) \
+ push_section_type(section, SECTION_TYPE_RANGES, name, \
+ level, flags)
+#endif
+
+#if defined(__ASSEMBLER__) || defined(__ASSEMBLY__)
+
+# ifndef DECLARE_SECTION_RANGE
+# define DECLARE_SECTION_RANGE(section, name) \
+ push_section_rng_level(section, name,,) ; \
+ .globl name ; \
+name: ; \
+ .popsection \
+ \
+ push_section_rng_level(section, name, ~,) ; \
+ .popsection
+# endif
+
+#endif /* defined(__ASSEMBLER__) || defined(__ASSEMBLY__) */
+
+#endif /* _ASM_GENERIC_RANGES_H_ */
diff --git a/include/linux/ranges.h b/include/linux/ranges.h
new file mode 100644
index 000000000000..1146c7225096
--- /dev/null
+++ b/include/linux/ranges.h
@@ -0,0 +1,54 @@
+#ifndef _LINUX_RANGES_H
+#define _LINUX_RANGES_H
+/*
+ * Linux section ranges
+ *
+ * Copyright (C) 2016 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#ifdef __KERNEL__
+#include <linux/sections.h>
+# include <asm/ranges.h>
+#endif /* __KERNEL__ */
+
+#ifndef __ASSEMBLY__
+
+#define SECTION_ADDR_IN_RANGE(name, addr) \
+ (addr >= (unsigned long) LINUX_SECTION_START(name) && \
+ addr < (unsigned long) LINUX_SECTION_END(name))
+
+#define DECLARE_SECTION_RANGE(name) \
+ DECLARE_LINUX_SECTION_RO(char, name)
+
+#define SECTION_RANGE_BEGIN(name, __section) \
+ const __typeof__(name[0]) \
+ __attribute__((used, \
+ weak, \
+ __aligned__(LINUX_SECTION_ALIGNMENT(name)),\
+ section(SECTION_RNG_LEVEL(__section, name, ))))
+
+#define SECTION_RANGE_END(name, __section) \
+ const __typeof__(name[0]) \
+ __attribute__((used, \
+ __aligned__(LINUX_SECTION_ALIGNMENT(name)),\
+ section(SECTION_RNG_LEVEL(__section, name, ~))))
+
+#define DEFINE_SECTION_RANGE(name, section) \
+ DECLARE_LINUX_SECTION_RO(char, name); \
+ SECTION_RANGE_BEGIN(name, section) VMLINUX_SYMBOL(name)[0] = {};\
+ SECTION_RANGE_END(name, section) VMLINUX_SYMBOL(name##__end)[0] = {};
+
+#define __LINUX_RANGE(section, name) \
+ __attribute__((__aligned__(LINUX_SECTION_ALIGNMENT(name)), \
+ __section__(SECTION_RNG(section, name))))
+
+#define __LINUX_RANGE_ORDER(section, name, level) \
+ __attribute__((__aligned__(LINUX_SECTION_ALIGNMENT(name)), \
+ __section__(SECTION_RNG_LEVEL(section, name, level))))
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _LINUX_RANGES_H */
--
2.8.4
WARNING: multiple messages have this Message-ID (diff)
From: "Luis R. Rodriguez" <mcgrof@kernel.org>
To: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, linux@arm.linux.org.uk, mhiramat@kernel.org,
masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com,
heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com,
anil.s.keshavamurthy@intel.com, davem@davemloft.net,
realmz6@gmail.com
Cc: x86@kernel.org, luto@amacapital.net, keescook@chromium.org,
torvalds@linux-foundation.org, gregkh@linuxfoundation.org,
rusty@rustcorp.com.au, gnomes@lxorguk.ukuu.org.uk,
alan@linux.intel.com, dwmw2@infradead.org, arnd@arndb.de,
ming.lei@canonical.com, linux-arch@vger.kernel.org,
benh@kernel.crashing.org, ananth@in.ibm.com, pebolle@tiscali.nl,
fontana@sharpeleven.org, ciaran.farrell@suse.com,
christopher.denicolo@suse.com, david.vrabel@citrix.com,
konrad.wilk@oracle.com, mcb30@ipxe.org, jgross@suse.com,
andrew.cooper3@citrix.com, andriy.shevchenko@linux.intel.com,
paul.gortmaker@windriver.com, xen-devel@lists.xensource.com,
ak@linux.intel.com, pali.rohar@gmail.com, dvhart@infradead.org,
platform-driver-x86@vger.kernel.org, mmarek@suse.com,
linux@rasmusvillemoes.dk, jkosina@suse.cz, korea.drzix@gmail.com,
linux-kbuild@vger.kernel.org, tony.luck@intel.com,
akpm@linux-foun
Subject: [RFC v3 06/13] ranges.h: add helpers to build and identify Linux section ranges
Date: Fri, 22 Jul 2016 14:24:40 -0700 [thread overview]
Message-ID: <1469222687-1600-7-git-send-email-mcgrof@kernel.org> (raw)
In-Reply-To: <1469222687-1600-1-git-send-email-mcgrof@kernel.org>
Section ranges are on one of the types of custom sections
types used in Linux. This provides a series of helpers for
defining them and using them. Most importantly this also
enables us to avoid modifying the linker script when we
add new section range.
It turns out a lot of custom sections are actually section ranges,
and these are typically spelled out in their architecture specific
asm/sections.h file -- we anable architectures to override what asm
is used for section ranges but start by defult trusting the asm-generic
version all around.
v3: new in this series, uses copyleft-next
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
arch/alpha/include/asm/ranges.h | 6 ++++
arch/arc/include/asm/ranges.h | 6 ++++
arch/arm/include/asm/ranges.h | 6 ++++
arch/arm64/include/asm/ranges.h | 6 ++++
arch/avr32/include/asm/ranges.h | 6 ++++
arch/blackfin/include/asm/ranges.h | 6 ++++
arch/c6x/include/asm/ranges.h | 6 ++++
arch/cris/include/asm/ranges.h | 6 ++++
arch/frv/include/asm/ranges.h | 6 ++++
arch/h8300/include/asm/ranges.h | 6 ++++
arch/hexagon/include/asm/ranges.h | 6 ++++
arch/ia64/include/asm/ranges.h | 6 ++++
arch/m32r/include/asm/ranges.h | 6 ++++
arch/m68k/include/asm/ranges.h | 6 ++++
arch/metag/include/asm/ranges.h | 6 ++++
arch/microblaze/include/asm/ranges.h | 6 ++++
arch/mips/include/asm/ranges.h | 6 ++++
arch/mn10300/include/asm/ranges.h | 6 ++++
arch/nios2/include/asm/ranges.h | 6 ++++
arch/openrisc/include/asm/ranges.h | 6 ++++
arch/parisc/include/asm/ranges.h | 6 ++++
arch/powerpc/include/asm/ranges.h | 6 ++++
arch/s390/include/asm/ranges.h | 6 ++++
arch/score/include/asm/ranges.h | 6 ++++
arch/sh/include/asm/ranges.h | 6 ++++
arch/sparc/include/asm/ranges.h | 6 ++++
arch/tile/include/asm/ranges.h | 6 ++++
arch/um/include/asm/ranges.h | 6 ++++
arch/unicore32/include/asm/ranges.h | 6 ++++
arch/x86/include/asm/ranges.h | 6 ++++
arch/xtensa/include/asm/ranges.h | 6 ++++
include/asm-generic/ranges.h | 70 ++++++++++++++++++++++++++++++++++++
include/linux/ranges.h | 54 ++++++++++++++++++++++++++++
33 files changed, 310 insertions(+)
create mode 100644 arch/alpha/include/asm/ranges.h
create mode 100644 arch/arc/include/asm/ranges.h
create mode 100644 arch/arm/include/asm/ranges.h
create mode 100644 arch/arm64/include/asm/ranges.h
create mode 100644 arch/avr32/include/asm/ranges.h
create mode 100644 arch/blackfin/include/asm/ranges.h
create mode 100644 arch/c6x/include/asm/ranges.h
create mode 100644 arch/cris/include/asm/ranges.h
create mode 100644 arch/frv/include/asm/ranges.h
create mode 100644 arch/h8300/include/asm/ranges.h
create mode 100644 arch/hexagon/include/asm/ranges.h
create mode 100644 arch/ia64/include/asm/ranges.h
create mode 100644 arch/m32r/include/asm/ranges.h
create mode 100644 arch/m68k/include/asm/ranges.h
create mode 100644 arch/metag/include/asm/ranges.h
create mode 100644 arch/microblaze/include/asm/ranges.h
create mode 100644 arch/mips/include/asm/ranges.h
create mode 100644 arch/mn10300/include/asm/ranges.h
create mode 100644 arch/nios2/include/asm/ranges.h
create mode 100644 arch/openrisc/include/asm/ranges.h
create mode 100644 arch/parisc/include/asm/ranges.h
create mode 100644 arch/powerpc/include/asm/ranges.h
create mode 100644 arch/s390/include/asm/ranges.h
create mode 100644 arch/score/include/asm/ranges.h
create mode 100644 arch/sh/include/asm/ranges.h
create mode 100644 arch/sparc/include/asm/ranges.h
create mode 100644 arch/tile/include/asm/ranges.h
create mode 100644 arch/um/include/asm/ranges.h
create mode 100644 arch/unicore32/include/asm/ranges.h
create mode 100644 arch/x86/include/asm/ranges.h
create mode 100644 arch/xtensa/include/asm/ranges.h
create mode 100644 include/asm-generic/ranges.h
create mode 100644 include/linux/ranges.h
diff --git a/arch/alpha/include/asm/ranges.h b/arch/alpha/include/asm/ranges.h
new file mode 100644
index 000000000000..b7bc4107bc75
--- /dev/null
+++ b/arch/alpha/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ALPHA_RANGES_H
+#define _ASM_ALPHA_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ALPHA_RANGES_H */
diff --git a/arch/arc/include/asm/ranges.h b/arch/arc/include/asm/ranges.h
new file mode 100644
index 000000000000..a761243bf79f
--- /dev/null
+++ b/arch/arc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARC_RANGES_H
+#define _ASM_ARC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARC_RANGES_H */
diff --git a/arch/arm/include/asm/ranges.h b/arch/arm/include/asm/ranges.h
new file mode 100644
index 000000000000..fb059e205f90
--- /dev/null
+++ b/arch/arm/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM_RANGES_H
+#define _ASM_ARM_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARM_RANGES_H */
diff --git a/arch/arm64/include/asm/ranges.h b/arch/arm64/include/asm/ranges.h
new file mode 100644
index 000000000000..0e0b52cc8d41
--- /dev/null
+++ b/arch/arm64/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM64_RANGES_H
+#define _ASM_ARM64_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARM64_RANGES_H */
diff --git a/arch/avr32/include/asm/ranges.h b/arch/avr32/include/asm/ranges.h
new file mode 100644
index 000000000000..0f50a1af03e1
--- /dev/null
+++ b/arch/avr32/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_AVR32_RANGES_H
+#define _ASM_AVR32_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_AVR32_RANGES_H */
diff --git a/arch/blackfin/include/asm/ranges.h b/arch/blackfin/include/asm/ranges.h
new file mode 100644
index 000000000000..e1d133639a45
--- /dev/null
+++ b/arch/blackfin/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_BLACKFIN_RANGES_H
+#define _ASM_BLACKFIN_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_BLACKFIN_RANGES_H */
diff --git a/arch/c6x/include/asm/ranges.h b/arch/c6x/include/asm/ranges.h
new file mode 100644
index 000000000000..0e8e6e149d55
--- /dev/null
+++ b/arch/c6x/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_C6X_RANGES_H
+#define _ASM_C6X_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_C6X_RANGES_H */
diff --git a/arch/cris/include/asm/ranges.h b/arch/cris/include/asm/ranges.h
new file mode 100644
index 000000000000..8567f55ae4ea
--- /dev/null
+++ b/arch/cris/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_CRIS_RANGES_H
+#define _ASM_CRIS_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_CRIS_RANGES_H */
diff --git a/arch/frv/include/asm/ranges.h b/arch/frv/include/asm/ranges.h
new file mode 100644
index 000000000000..f11a6f0fb0bd
--- /dev/null
+++ b/arch/frv/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_FRV_RANGES_H
+#define _ASM_FRV_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_FRV_RANGES_H */
diff --git a/arch/h8300/include/asm/ranges.h b/arch/h8300/include/asm/ranges.h
new file mode 100644
index 000000000000..ab08bd6bd067
--- /dev/null
+++ b/arch/h8300/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_H8300_RANGES_H
+#define _ASM_H8300_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_H8300_RANGES_H */
diff --git a/arch/hexagon/include/asm/ranges.h b/arch/hexagon/include/asm/ranges.h
new file mode 100644
index 000000000000..56e5241abc6b
--- /dev/null
+++ b/arch/hexagon/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_HEXAGON_RANGES_H
+#define _ASM_HEXAGON_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_HEXAGON_RANGES_H */
diff --git a/arch/ia64/include/asm/ranges.h b/arch/ia64/include/asm/ranges.h
new file mode 100644
index 000000000000..4e69cbcfd0e7
--- /dev/null
+++ b/arch/ia64/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_IA64_RANGES_H
+#define _ASM_IA64_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_IA64_RANGES_H */
diff --git a/arch/m32r/include/asm/ranges.h b/arch/m32r/include/asm/ranges.h
new file mode 100644
index 000000000000..dd33a0b94de4
--- /dev/null
+++ b/arch/m32r/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_M32R_RANGES_H
+#define _ASM_M32R_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_M32R_RANGES_H */
diff --git a/arch/m68k/include/asm/ranges.h b/arch/m68k/include/asm/ranges.h
new file mode 100644
index 000000000000..292a00baa73e
--- /dev/null
+++ b/arch/m68k/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_M68K_RANGES_H
+#define _ASM_M68K_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_M68K_RANGES_H */
diff --git a/arch/metag/include/asm/ranges.h b/arch/metag/include/asm/ranges.h
new file mode 100644
index 000000000000..42a77c098c85
--- /dev/null
+++ b/arch/metag/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_METAG_RANGES_H
+#define _ASM_METAG_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_METAG_RANGES_H */
diff --git a/arch/microblaze/include/asm/ranges.h b/arch/microblaze/include/asm/ranges.h
new file mode 100644
index 000000000000..48d58e38f1e1
--- /dev/null
+++ b/arch/microblaze/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_RANGES_H
+#define _ASM_MICROBLAZE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MICROBLAZE_RANGES_H */
diff --git a/arch/mips/include/asm/ranges.h b/arch/mips/include/asm/ranges.h
new file mode 100644
index 000000000000..675a55cd3719
--- /dev/null
+++ b/arch/mips/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MIPS_RANGES_H
+#define _ASM_MIPS_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MIPS_RANGES_H */
diff --git a/arch/mn10300/include/asm/ranges.h b/arch/mn10300/include/asm/ranges.h
new file mode 100644
index 000000000000..fb7f43a3c19d
--- /dev/null
+++ b/arch/mn10300/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MN10300_RANGES_H
+#define _ASM_MN10300_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MN10300_RANGES_H */
diff --git a/arch/nios2/include/asm/ranges.h b/arch/nios2/include/asm/ranges.h
new file mode 100644
index 000000000000..ab1991981c0f
--- /dev/null
+++ b/arch/nios2/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_NIOS2_RANGES_H
+#define _ASM_NIOS2_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_NIOS2_RANGES_H */
diff --git a/arch/openrisc/include/asm/ranges.h b/arch/openrisc/include/asm/ranges.h
new file mode 100644
index 000000000000..a64be842983f
--- /dev/null
+++ b/arch/openrisc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_OPENRISC_RANGES_H
+#define _ASM_OPENRISC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_OPENRISC_RANGES_H */
diff --git a/arch/parisc/include/asm/ranges.h b/arch/parisc/include/asm/ranges.h
new file mode 100644
index 000000000000..dd6b5c215941
--- /dev/null
+++ b/arch/parisc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_PARISC_RANGES_H
+#define _ASM_PARISC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_PARISC_RANGES_H */
diff --git a/arch/powerpc/include/asm/ranges.h b/arch/powerpc/include/asm/ranges.h
new file mode 100644
index 000000000000..240c51a210d4
--- /dev/null
+++ b/arch/powerpc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_POWERPC_RANGES_H
+#define _ASM_POWERPC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_POWERPC_RANGES_H */
diff --git a/arch/s390/include/asm/ranges.h b/arch/s390/include/asm/ranges.h
new file mode 100644
index 000000000000..d4788451f176
--- /dev/null
+++ b/arch/s390/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_S390_RANGES_H
+#define _ASM_S390_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_S390_RANGES_H */
diff --git a/arch/score/include/asm/ranges.h b/arch/score/include/asm/ranges.h
new file mode 100644
index 000000000000..d67f859eeda3
--- /dev/null
+++ b/arch/score/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_RANGES_H
+#define _ASM_SCORE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SCORE_RANGES_H */
diff --git a/arch/sh/include/asm/ranges.h b/arch/sh/include/asm/ranges.h
new file mode 100644
index 000000000000..99df0b65f40a
--- /dev/null
+++ b/arch/sh/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SH_RANGES_H
+#define _ASM_SH_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SH_RANGES_H */
diff --git a/arch/sparc/include/asm/ranges.h b/arch/sparc/include/asm/ranges.h
new file mode 100644
index 000000000000..8ff4765ccd9b
--- /dev/null
+++ b/arch/sparc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SPARC_RANGES_H
+#define _ASM_SPARC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SPARC_RANGES_H */
diff --git a/arch/tile/include/asm/ranges.h b/arch/tile/include/asm/ranges.h
new file mode 100644
index 000000000000..ceda3fb075e0
--- /dev/null
+++ b/arch/tile/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_TILE_RANGES_H
+#define _ASM_TILE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_TILE_RANGES_H */
diff --git a/arch/um/include/asm/ranges.h b/arch/um/include/asm/ranges.h
new file mode 100644
index 000000000000..7c9c20e47879
--- /dev/null
+++ b/arch/um/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_RANGES_H
+#define _ASM_UM_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_UM_RANGES_H */
diff --git a/arch/unicore32/include/asm/ranges.h b/arch/unicore32/include/asm/ranges.h
new file mode 100644
index 000000000000..92526340d73c
--- /dev/null
+++ b/arch/unicore32/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UNICORE32_RANGES_H
+#define _ASM_UNICORE32_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_UNICORE32_RANGES_H */
diff --git a/arch/x86/include/asm/ranges.h b/arch/x86/include/asm/ranges.h
new file mode 100644
index 000000000000..4a0c824d4082
--- /dev/null
+++ b/arch/x86/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_X86_RANGES_H
+#define _ASM_X86_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_X86_RANGES_H */
diff --git a/arch/xtensa/include/asm/ranges.h b/arch/xtensa/include/asm/ranges.h
new file mode 100644
index 000000000000..c7360d1c9c85
--- /dev/null
+++ b/arch/xtensa/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_XTENSA_RANGES_H
+#define _ASM_XTENSA_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_XTENSA_RANGES_H */
diff --git a/include/asm-generic/ranges.h b/include/asm-generic/ranges.h
new file mode 100644
index 000000000000..0d54c632f714
--- /dev/null
+++ b/include/asm-generic/ranges.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_GENERIC_RANGES_H_
+#define _ASM_GENERIC_RANGES_H_
+/*
+ * Copyright (C) 2016 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#ifdef __KERNEL__
+# include <asm/sections.h>
+#endif /* __KERNEL__ */
+
+#define SECTION_TYPE_RANGES rng
+
+#define SECTION_RNG(section, name) \
+ SECTION_TYPE(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY)
+
+#define SECTION_RNG_LEVEL(section, name, level) \
+ SECTION_TYPE(section, SECTION_TYPE_RANGES, name, level)
+
+#define SECTION_RANGE_ALL(section) \
+ SECTION_TYPE_ALL(section,SECTION_TYPE_RANGES)
+
+#ifndef section_rng
+# define section_rng(section, name, flags) \
+ section_type(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags)
+#endif
+
+#ifndef section_rng_asmtype
+# define section_rng_asmtype(section, name, flags, asmtype) \
+ section_type_asmtype(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags, asmtype)
+#endif
+
+#ifndef section_rng_level
+# define section_rng_level(section, name, level, flags) \
+ section_type(section, SECTION_TYPE_RANGES, name, level, flags)
+#endif
+
+#ifndef push_section_rng
+# define push_section_rng(section, name, flags) \
+ push_section_type(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags)
+#endif
+
+#ifndef push_section_rng_level
+# define push_section_rng_level(section, name, level, flags) \
+ push_section_type(section, SECTION_TYPE_RANGES, name, \
+ level, flags)
+#endif
+
+#if defined(__ASSEMBLER__) || defined(__ASSEMBLY__)
+
+# ifndef DECLARE_SECTION_RANGE
+# define DECLARE_SECTION_RANGE(section, name) \
+ push_section_rng_level(section, name,,) ; \
+ .globl name ; \
+name: ; \
+ .popsection \
+ \
+ push_section_rng_level(section, name, ~,) ; \
+ .popsection
+# endif
+
+#endif /* defined(__ASSEMBLER__) || defined(__ASSEMBLY__) */
+
+#endif /* _ASM_GENERIC_RANGES_H_ */
diff --git a/include/linux/ranges.h b/include/linux/ranges.h
new file mode 100644
index 000000000000..1146c7225096
--- /dev/null
+++ b/include/linux/ranges.h
@@ -0,0 +1,54 @@
+#ifndef _LINUX_RANGES_H
+#define _LINUX_RANGES_H
+/*
+ * Linux section ranges
+ *
+ * Copyright (C) 2016 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#ifdef __KERNEL__
+#include <linux/sections.h>
+# include <asm/ranges.h>
+#endif /* __KERNEL__ */
+
+#ifndef __ASSEMBLY__
+
+#define SECTION_ADDR_IN_RANGE(name, addr) \
+ (addr >= (unsigned long) LINUX_SECTION_START(name) && \
+ addr < (unsigned long) LINUX_SECTION_END(name))
+
+#define DECLARE_SECTION_RANGE(name) \
+ DECLARE_LINUX_SECTION_RO(char, name)
+
+#define SECTION_RANGE_BEGIN(name, __section) \
+ const __typeof__(name[0]) \
+ __attribute__((used, \
+ weak, \
+ __aligned__(LINUX_SECTION_ALIGNMENT(name)),\
+ section(SECTION_RNG_LEVEL(__section, name, ))))
+
+#define SECTION_RANGE_END(name, __section) \
+ const __typeof__(name[0]) \
+ __attribute__((used, \
+ __aligned__(LINUX_SECTION_ALIGNMENT(name)),\
+ section(SECTION_RNG_LEVEL(__section, name, ~))))
+
+#define DEFINE_SECTION_RANGE(name, section) \
+ DECLARE_LINUX_SECTION_RO(char, name); \
+ SECTION_RANGE_BEGIN(name, section) VMLINUX_SYMBOL(name)[0] = {};\
+ SECTION_RANGE_END(name, section) VMLINUX_SYMBOL(name##__end)[0] = {};
+
+#define __LINUX_RANGE(section, name) \
+ __attribute__((__aligned__(LINUX_SECTION_ALIGNMENT(name)), \
+ __section__(SECTION_RNG(section, name))))
+
+#define __LINUX_RANGE_ORDER(section, name, level) \
+ __attribute__((__aligned__(LINUX_SECTION_ALIGNMENT(name)), \
+ __section__(SECTION_RNG_LEVEL(section, name, level))))
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _LINUX_RANGES_H */
--
2.8.4
WARNING: multiple messages have this Message-ID (diff)
From: "Luis R. Rodriguez" <mcgrof@kernel.org>
To: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, linux@arm.linux.org.uk, mhiramat@kernel.org,
masami.hiramatsu.pt@hitachi.com, jbaron@akamai.com,
heiko.carstens@de.ibm.com, ananth@linux.vnet.ibm.com,
anil.s.keshavamurthy@intel.com, davem@davemloft.net,
realmz6@gmail.com
Cc: x86@kernel.org, luto@amacapital.net, keescook@chromium.org,
torvalds@linux-foundation.org, gregkh@linuxfoundation.org,
rusty@rustcorp.com.au, gnomes@lxorguk.ukuu.org.uk,
alan@linux.intel.com, dwmw2@infradead.org, arnd@arndb.de,
ming.lei@canonical.com, linux-arch@vger.kernel.org,
benh@kernel.crashing.org, ananth@in.ibm.com, pebolle@tiscali.nl,
fontana@sharpeleven.org, ciaran.farrell@suse.com,
christopher.denicolo@suse.com, david.vrabel@citrix.com,
konrad.wilk@oracle.com, mcb30@ipxe.org, jgross@suse.com,
andrew.cooper3@citrix.com, andriy.shevchenko@linux.intel.com,
paul.gortmaker@windriver.com, xen-devel@lists.xensource.com,
ak@linux.intel.com, pali.rohar@gmail.com, dvhart@infradead.org,
platform-driver-x86@vger.kernel.org, mmarek@suse.com,
linux@rasmusvillemoes.dk, jkosina@suse.cz, korea.drzix@gmail.com,
linux-kbuild@vger.kernel.org, tony.luck@intel.com,
akpm@linux-foundation.org, linux-ia64@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, catalin.marinas@arm.com,
will.deacon@arm.com, rostedt@goodmis.org, jpoimboe@redhat.com,
"Luis R. Rodriguez" <mcgrof@kernel.org>
Subject: [RFC v3 06/13] ranges.h: add helpers to build and identify Linux section ranges
Date: Fri, 22 Jul 2016 14:24:40 -0700 [thread overview]
Message-ID: <1469222687-1600-7-git-send-email-mcgrof@kernel.org> (raw)
In-Reply-To: <1469222687-1600-1-git-send-email-mcgrof@kernel.org>
Section ranges are on one of the types of custom sections
types used in Linux. This provides a series of helpers for
defining them and using them. Most importantly this also
enables us to avoid modifying the linker script when we
add new section range.
It turns out a lot of custom sections are actually section ranges,
and these are typically spelled out in their architecture specific
asm/sections.h file -- we anable architectures to override what asm
is used for section ranges but start by defult trusting the asm-generic
version all around.
v3: new in this series, uses copyleft-next
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
arch/alpha/include/asm/ranges.h | 6 ++++
arch/arc/include/asm/ranges.h | 6 ++++
arch/arm/include/asm/ranges.h | 6 ++++
arch/arm64/include/asm/ranges.h | 6 ++++
arch/avr32/include/asm/ranges.h | 6 ++++
arch/blackfin/include/asm/ranges.h | 6 ++++
arch/c6x/include/asm/ranges.h | 6 ++++
arch/cris/include/asm/ranges.h | 6 ++++
arch/frv/include/asm/ranges.h | 6 ++++
arch/h8300/include/asm/ranges.h | 6 ++++
arch/hexagon/include/asm/ranges.h | 6 ++++
arch/ia64/include/asm/ranges.h | 6 ++++
arch/m32r/include/asm/ranges.h | 6 ++++
arch/m68k/include/asm/ranges.h | 6 ++++
arch/metag/include/asm/ranges.h | 6 ++++
arch/microblaze/include/asm/ranges.h | 6 ++++
arch/mips/include/asm/ranges.h | 6 ++++
arch/mn10300/include/asm/ranges.h | 6 ++++
arch/nios2/include/asm/ranges.h | 6 ++++
arch/openrisc/include/asm/ranges.h | 6 ++++
arch/parisc/include/asm/ranges.h | 6 ++++
arch/powerpc/include/asm/ranges.h | 6 ++++
arch/s390/include/asm/ranges.h | 6 ++++
arch/score/include/asm/ranges.h | 6 ++++
arch/sh/include/asm/ranges.h | 6 ++++
arch/sparc/include/asm/ranges.h | 6 ++++
arch/tile/include/asm/ranges.h | 6 ++++
arch/um/include/asm/ranges.h | 6 ++++
arch/unicore32/include/asm/ranges.h | 6 ++++
arch/x86/include/asm/ranges.h | 6 ++++
arch/xtensa/include/asm/ranges.h | 6 ++++
include/asm-generic/ranges.h | 70 ++++++++++++++++++++++++++++++++++++
include/linux/ranges.h | 54 ++++++++++++++++++++++++++++
33 files changed, 310 insertions(+)
create mode 100644 arch/alpha/include/asm/ranges.h
create mode 100644 arch/arc/include/asm/ranges.h
create mode 100644 arch/arm/include/asm/ranges.h
create mode 100644 arch/arm64/include/asm/ranges.h
create mode 100644 arch/avr32/include/asm/ranges.h
create mode 100644 arch/blackfin/include/asm/ranges.h
create mode 100644 arch/c6x/include/asm/ranges.h
create mode 100644 arch/cris/include/asm/ranges.h
create mode 100644 arch/frv/include/asm/ranges.h
create mode 100644 arch/h8300/include/asm/ranges.h
create mode 100644 arch/hexagon/include/asm/ranges.h
create mode 100644 arch/ia64/include/asm/ranges.h
create mode 100644 arch/m32r/include/asm/ranges.h
create mode 100644 arch/m68k/include/asm/ranges.h
create mode 100644 arch/metag/include/asm/ranges.h
create mode 100644 arch/microblaze/include/asm/ranges.h
create mode 100644 arch/mips/include/asm/ranges.h
create mode 100644 arch/mn10300/include/asm/ranges.h
create mode 100644 arch/nios2/include/asm/ranges.h
create mode 100644 arch/openrisc/include/asm/ranges.h
create mode 100644 arch/parisc/include/asm/ranges.h
create mode 100644 arch/powerpc/include/asm/ranges.h
create mode 100644 arch/s390/include/asm/ranges.h
create mode 100644 arch/score/include/asm/ranges.h
create mode 100644 arch/sh/include/asm/ranges.h
create mode 100644 arch/sparc/include/asm/ranges.h
create mode 100644 arch/tile/include/asm/ranges.h
create mode 100644 arch/um/include/asm/ranges.h
create mode 100644 arch/unicore32/include/asm/ranges.h
create mode 100644 arch/x86/include/asm/ranges.h
create mode 100644 arch/xtensa/include/asm/ranges.h
create mode 100644 include/asm-generic/ranges.h
create mode 100644 include/linux/ranges.h
diff --git a/arch/alpha/include/asm/ranges.h b/arch/alpha/include/asm/ranges.h
new file mode 100644
index 000000000000..b7bc4107bc75
--- /dev/null
+++ b/arch/alpha/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ALPHA_RANGES_H
+#define _ASM_ALPHA_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ALPHA_RANGES_H */
diff --git a/arch/arc/include/asm/ranges.h b/arch/arc/include/asm/ranges.h
new file mode 100644
index 000000000000..a761243bf79f
--- /dev/null
+++ b/arch/arc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARC_RANGES_H
+#define _ASM_ARC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARC_RANGES_H */
diff --git a/arch/arm/include/asm/ranges.h b/arch/arm/include/asm/ranges.h
new file mode 100644
index 000000000000..fb059e205f90
--- /dev/null
+++ b/arch/arm/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM_RANGES_H
+#define _ASM_ARM_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARM_RANGES_H */
diff --git a/arch/arm64/include/asm/ranges.h b/arch/arm64/include/asm/ranges.h
new file mode 100644
index 000000000000..0e0b52cc8d41
--- /dev/null
+++ b/arch/arm64/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_ARM64_RANGES_H
+#define _ASM_ARM64_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_ARM64_RANGES_H */
diff --git a/arch/avr32/include/asm/ranges.h b/arch/avr32/include/asm/ranges.h
new file mode 100644
index 000000000000..0f50a1af03e1
--- /dev/null
+++ b/arch/avr32/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_AVR32_RANGES_H
+#define _ASM_AVR32_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_AVR32_RANGES_H */
diff --git a/arch/blackfin/include/asm/ranges.h b/arch/blackfin/include/asm/ranges.h
new file mode 100644
index 000000000000..e1d133639a45
--- /dev/null
+++ b/arch/blackfin/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_BLACKFIN_RANGES_H
+#define _ASM_BLACKFIN_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_BLACKFIN_RANGES_H */
diff --git a/arch/c6x/include/asm/ranges.h b/arch/c6x/include/asm/ranges.h
new file mode 100644
index 000000000000..0e8e6e149d55
--- /dev/null
+++ b/arch/c6x/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_C6X_RANGES_H
+#define _ASM_C6X_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_C6X_RANGES_H */
diff --git a/arch/cris/include/asm/ranges.h b/arch/cris/include/asm/ranges.h
new file mode 100644
index 000000000000..8567f55ae4ea
--- /dev/null
+++ b/arch/cris/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_CRIS_RANGES_H
+#define _ASM_CRIS_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_CRIS_RANGES_H */
diff --git a/arch/frv/include/asm/ranges.h b/arch/frv/include/asm/ranges.h
new file mode 100644
index 000000000000..f11a6f0fb0bd
--- /dev/null
+++ b/arch/frv/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_FRV_RANGES_H
+#define _ASM_FRV_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_FRV_RANGES_H */
diff --git a/arch/h8300/include/asm/ranges.h b/arch/h8300/include/asm/ranges.h
new file mode 100644
index 000000000000..ab08bd6bd067
--- /dev/null
+++ b/arch/h8300/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_H8300_RANGES_H
+#define _ASM_H8300_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_H8300_RANGES_H */
diff --git a/arch/hexagon/include/asm/ranges.h b/arch/hexagon/include/asm/ranges.h
new file mode 100644
index 000000000000..56e5241abc6b
--- /dev/null
+++ b/arch/hexagon/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_HEXAGON_RANGES_H
+#define _ASM_HEXAGON_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_HEXAGON_RANGES_H */
diff --git a/arch/ia64/include/asm/ranges.h b/arch/ia64/include/asm/ranges.h
new file mode 100644
index 000000000000..4e69cbcfd0e7
--- /dev/null
+++ b/arch/ia64/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_IA64_RANGES_H
+#define _ASM_IA64_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_IA64_RANGES_H */
diff --git a/arch/m32r/include/asm/ranges.h b/arch/m32r/include/asm/ranges.h
new file mode 100644
index 000000000000..dd33a0b94de4
--- /dev/null
+++ b/arch/m32r/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_M32R_RANGES_H
+#define _ASM_M32R_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_M32R_RANGES_H */
diff --git a/arch/m68k/include/asm/ranges.h b/arch/m68k/include/asm/ranges.h
new file mode 100644
index 000000000000..292a00baa73e
--- /dev/null
+++ b/arch/m68k/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_M68K_RANGES_H
+#define _ASM_M68K_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_M68K_RANGES_H */
diff --git a/arch/metag/include/asm/ranges.h b/arch/metag/include/asm/ranges.h
new file mode 100644
index 000000000000..42a77c098c85
--- /dev/null
+++ b/arch/metag/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_METAG_RANGES_H
+#define _ASM_METAG_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_METAG_RANGES_H */
diff --git a/arch/microblaze/include/asm/ranges.h b/arch/microblaze/include/asm/ranges.h
new file mode 100644
index 000000000000..48d58e38f1e1
--- /dev/null
+++ b/arch/microblaze/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MICROBLAZE_RANGES_H
+#define _ASM_MICROBLAZE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MICROBLAZE_RANGES_H */
diff --git a/arch/mips/include/asm/ranges.h b/arch/mips/include/asm/ranges.h
new file mode 100644
index 000000000000..675a55cd3719
--- /dev/null
+++ b/arch/mips/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MIPS_RANGES_H
+#define _ASM_MIPS_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MIPS_RANGES_H */
diff --git a/arch/mn10300/include/asm/ranges.h b/arch/mn10300/include/asm/ranges.h
new file mode 100644
index 000000000000..fb7f43a3c19d
--- /dev/null
+++ b/arch/mn10300/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_MN10300_RANGES_H
+#define _ASM_MN10300_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_MN10300_RANGES_H */
diff --git a/arch/nios2/include/asm/ranges.h b/arch/nios2/include/asm/ranges.h
new file mode 100644
index 000000000000..ab1991981c0f
--- /dev/null
+++ b/arch/nios2/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_NIOS2_RANGES_H
+#define _ASM_NIOS2_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_NIOS2_RANGES_H */
diff --git a/arch/openrisc/include/asm/ranges.h b/arch/openrisc/include/asm/ranges.h
new file mode 100644
index 000000000000..a64be842983f
--- /dev/null
+++ b/arch/openrisc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_OPENRISC_RANGES_H
+#define _ASM_OPENRISC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_OPENRISC_RANGES_H */
diff --git a/arch/parisc/include/asm/ranges.h b/arch/parisc/include/asm/ranges.h
new file mode 100644
index 000000000000..dd6b5c215941
--- /dev/null
+++ b/arch/parisc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_PARISC_RANGES_H
+#define _ASM_PARISC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_PARISC_RANGES_H */
diff --git a/arch/powerpc/include/asm/ranges.h b/arch/powerpc/include/asm/ranges.h
new file mode 100644
index 000000000000..240c51a210d4
--- /dev/null
+++ b/arch/powerpc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_POWERPC_RANGES_H
+#define _ASM_POWERPC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_POWERPC_RANGES_H */
diff --git a/arch/s390/include/asm/ranges.h b/arch/s390/include/asm/ranges.h
new file mode 100644
index 000000000000..d4788451f176
--- /dev/null
+++ b/arch/s390/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_S390_RANGES_H
+#define _ASM_S390_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_S390_RANGES_H */
diff --git a/arch/score/include/asm/ranges.h b/arch/score/include/asm/ranges.h
new file mode 100644
index 000000000000..d67f859eeda3
--- /dev/null
+++ b/arch/score/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_RANGES_H
+#define _ASM_SCORE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SCORE_RANGES_H */
diff --git a/arch/sh/include/asm/ranges.h b/arch/sh/include/asm/ranges.h
new file mode 100644
index 000000000000..99df0b65f40a
--- /dev/null
+++ b/arch/sh/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SH_RANGES_H
+#define _ASM_SH_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SH_RANGES_H */
diff --git a/arch/sparc/include/asm/ranges.h b/arch/sparc/include/asm/ranges.h
new file mode 100644
index 000000000000..8ff4765ccd9b
--- /dev/null
+++ b/arch/sparc/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SPARC_RANGES_H
+#define _ASM_SPARC_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_SPARC_RANGES_H */
diff --git a/arch/tile/include/asm/ranges.h b/arch/tile/include/asm/ranges.h
new file mode 100644
index 000000000000..ceda3fb075e0
--- /dev/null
+++ b/arch/tile/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_TILE_RANGES_H
+#define _ASM_TILE_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_TILE_RANGES_H */
diff --git a/arch/um/include/asm/ranges.h b/arch/um/include/asm/ranges.h
new file mode 100644
index 000000000000..7c9c20e47879
--- /dev/null
+++ b/arch/um/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_RANGES_H
+#define _ASM_UM_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_UM_RANGES_H */
diff --git a/arch/unicore32/include/asm/ranges.h b/arch/unicore32/include/asm/ranges.h
new file mode 100644
index 000000000000..92526340d73c
--- /dev/null
+++ b/arch/unicore32/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UNICORE32_RANGES_H
+#define _ASM_UNICORE32_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_UNICORE32_RANGES_H */
diff --git a/arch/x86/include/asm/ranges.h b/arch/x86/include/asm/ranges.h
new file mode 100644
index 000000000000..4a0c824d4082
--- /dev/null
+++ b/arch/x86/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_X86_RANGES_H
+#define _ASM_X86_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_X86_RANGES_H */
diff --git a/arch/xtensa/include/asm/ranges.h b/arch/xtensa/include/asm/ranges.h
new file mode 100644
index 000000000000..c7360d1c9c85
--- /dev/null
+++ b/arch/xtensa/include/asm/ranges.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_XTENSA_RANGES_H
+#define _ASM_XTENSA_RANGES_H
+
+#include <asm-generic/ranges.h>
+
+#endif /* _ASM_XTENSA_RANGES_H */
diff --git a/include/asm-generic/ranges.h b/include/asm-generic/ranges.h
new file mode 100644
index 000000000000..0d54c632f714
--- /dev/null
+++ b/include/asm-generic/ranges.h
@@ -0,0 +1,70 @@
+#ifndef _ASM_GENERIC_RANGES_H_
+#define _ASM_GENERIC_RANGES_H_
+/*
+ * Copyright (C) 2016 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#ifdef __KERNEL__
+# include <asm/sections.h>
+#endif /* __KERNEL__ */
+
+#define SECTION_TYPE_RANGES rng
+
+#define SECTION_RNG(section, name) \
+ SECTION_TYPE(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY)
+
+#define SECTION_RNG_LEVEL(section, name, level) \
+ SECTION_TYPE(section, SECTION_TYPE_RANGES, name, level)
+
+#define SECTION_RANGE_ALL(section) \
+ SECTION_TYPE_ALL(section,SECTION_TYPE_RANGES)
+
+#ifndef section_rng
+# define section_rng(section, name, flags) \
+ section_type(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags)
+#endif
+
+#ifndef section_rng_asmtype
+# define section_rng_asmtype(section, name, flags, asmtype) \
+ section_type_asmtype(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags, asmtype)
+#endif
+
+#ifndef section_rng_level
+# define section_rng_level(section, name, level, flags) \
+ section_type(section, SECTION_TYPE_RANGES, name, level, flags)
+#endif
+
+#ifndef push_section_rng
+# define push_section_rng(section, name, flags) \
+ push_section_type(section, SECTION_TYPE_RANGES, name, \
+ SECTION_ORDER_ANY, flags)
+#endif
+
+#ifndef push_section_rng_level
+# define push_section_rng_level(section, name, level, flags) \
+ push_section_type(section, SECTION_TYPE_RANGES, name, \
+ level, flags)
+#endif
+
+#if defined(__ASSEMBLER__) || defined(__ASSEMBLY__)
+
+# ifndef DECLARE_SECTION_RANGE
+# define DECLARE_SECTION_RANGE(section, name) \
+ push_section_rng_level(section, name,,) ; \
+ .globl name ; \
+name: ; \
+ .popsection \
+ \
+ push_section_rng_level(section, name, ~,) ; \
+ .popsection
+# endif
+
+#endif /* defined(__ASSEMBLER__) || defined(__ASSEMBLY__) */
+
+#endif /* _ASM_GENERIC_RANGES_H_ */
diff --git a/include/linux/ranges.h b/include/linux/ranges.h
new file mode 100644
index 000000000000..1146c7225096
--- /dev/null
+++ b/include/linux/ranges.h
@@ -0,0 +1,54 @@
+#ifndef _LINUX_RANGES_H
+#define _LINUX_RANGES_H
+/*
+ * Linux section ranges
+ *
+ * Copyright (C) 2016 Luis R. Rodriguez <mcgrof@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of copyleft-next (version 0.3.1 or later) as published
+ * at http://copyleft-next.org/.
+ */
+#ifdef __KERNEL__
+#include <linux/sections.h>
+# include <asm/ranges.h>
+#endif /* __KERNEL__ */
+
+#ifndef __ASSEMBLY__
+
+#define SECTION_ADDR_IN_RANGE(name, addr) \
+ (addr >= (unsigned long) LINUX_SECTION_START(name) && \
+ addr < (unsigned long) LINUX_SECTION_END(name))
+
+#define DECLARE_SECTION_RANGE(name) \
+ DECLARE_LINUX_SECTION_RO(char, name)
+
+#define SECTION_RANGE_BEGIN(name, __section) \
+ const __typeof__(name[0]) \
+ __attribute__((used, \
+ weak, \
+ __aligned__(LINUX_SECTION_ALIGNMENT(name)),\
+ section(SECTION_RNG_LEVEL(__section, name, ))))
+
+#define SECTION_RANGE_END(name, __section) \
+ const __typeof__(name[0]) \
+ __attribute__((used, \
+ __aligned__(LINUX_SECTION_ALIGNMENT(name)),\
+ section(SECTION_RNG_LEVEL(__section, name, ~))))
+
+#define DEFINE_SECTION_RANGE(name, section) \
+ DECLARE_LINUX_SECTION_RO(char, name); \
+ SECTION_RANGE_BEGIN(name, section) VMLINUX_SYMBOL(name)[0] = {};\
+ SECTION_RANGE_END(name, section) VMLINUX_SYMBOL(name##__end)[0] = {};
+
+#define __LINUX_RANGE(section, name) \
+ __attribute__((__aligned__(LINUX_SECTION_ALIGNMENT(name)), \
+ __section__(SECTION_RNG(section, name))))
+
+#define __LINUX_RANGE_ORDER(section, name, level) \
+ __attribute__((__aligned__(LINUX_SECTION_ALIGNMENT(name)), \
+ __section__(SECTION_RNG_LEVEL(section, name, level))))
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _LINUX_RANGES_H */
--
2.8.4
next prev parent reply other threads:[~2016-07-22 21:24 UTC|newest]
Thread overview: 176+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-22 21:24 [RFC v3 00/13] linux: generalize sections, ranges and linker tables Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 01/13] x86: remove LTO_REFERENCE_INITCALL() Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 02/13] dell-smo8800: include uaccess.h Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:31 ` Pali Rohár
2016-07-22 21:31 ` Pali Rohár
2016-07-22 21:31 ` Pali Rohár
2016-07-22 21:24 ` [RFC v3 03/13] scripts/module-common.lds: enable generation Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 04/13] sections.h: guard against asm and linker script Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 05/13] sections.h: add sections header to collect all section info Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:37 ` James Hogan
2016-07-22 21:37 ` James Hogan
2016-07-22 21:37 ` James Hogan
2016-07-22 21:41 ` Luis R. Rodriguez
2016-07-22 21:41 ` Luis R. Rodriguez
2016-07-22 21:41 ` Luis R. Rodriguez
2016-07-29 17:28 ` Steven Rostedt
2016-07-29 17:28 ` Steven Rostedt
2016-07-29 17:28 ` Steven Rostedt
2016-07-22 21:24 ` Luis R. Rodriguez [this message]
2016-07-22 21:24 ` [RFC v3 06/13] ranges.h: add helpers to build and identify Linux section ranges Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 07/13] tables.h: add linker table support Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-25 15:30 ` Masami Hiramatsu
2016-07-25 15:30 ` Masami Hiramatsu
2016-07-25 15:30 ` Masami Hiramatsu
2016-07-27 23:02 ` Luis R. Rodriguez
2016-07-27 23:02 ` Luis R. Rodriguez
2016-07-27 23:02 ` Luis R. Rodriguez
2016-07-28 17:08 ` H. Peter Anvin
2016-07-28 17:08 ` H. Peter Anvin
2016-07-28 17:08 ` H. Peter Anvin
2016-07-28 17:08 ` H. Peter Anvin
2016-07-28 17:08 ` H. Peter Anvin
2016-07-29 10:06 ` Borislav Petkov
2016-07-29 10:06 ` Borislav Petkov
2016-07-29 10:06 ` Borislav Petkov
2016-08-08 15:05 ` Luis R. Rodriguez
2016-08-08 15:05 ` Luis R. Rodriguez
2016-08-08 15:05 ` Luis R. Rodriguez
2016-08-09 3:55 ` Borislav Petkov
2016-08-09 3:55 ` Borislav Petkov
2016-08-09 3:55 ` Borislav Petkov
2016-08-12 3:51 ` Luis R. Rodriguez
2016-08-12 3:51 ` Luis R. Rodriguez
2016-08-12 3:51 ` Luis R. Rodriguez
2016-08-12 5:23 ` Borislav Petkov
2016-08-12 5:23 ` Borislav Petkov
2016-08-12 5:23 ` Borislav Petkov
2016-08-12 6:50 ` Luis R. Rodriguez
2016-08-12 6:50 ` Luis R. Rodriguez
2016-08-12 6:50 ` Luis R. Rodriguez
2016-08-12 7:25 ` Borislav Petkov
2016-08-12 7:25 ` Borislav Petkov
2016-08-12 7:25 ` Borislav Petkov
2016-08-12 15:28 ` Luis R. Rodriguez
2016-08-12 15:28 ` Luis R. Rodriguez
2016-08-12 15:28 ` Luis R. Rodriguez
2016-08-12 15:51 ` Borislav Petkov
2016-08-12 15:51 ` Borislav Petkov
2016-08-12 15:51 ` Borislav Petkov
2016-08-12 17:04 ` Luis R. Rodriguez
2016-08-12 17:04 ` Luis R. Rodriguez
2016-08-12 17:04 ` Luis R. Rodriguez
2016-08-12 17:35 ` Borislav Petkov
2016-08-12 17:35 ` Borislav Petkov
2016-08-12 17:35 ` Borislav Petkov
2016-08-12 18:16 ` Kees Cook
2016-08-12 20:23 ` Greg KH
2016-08-12 20:23 ` Greg KH
2016-08-12 20:23 ` Greg KH
2016-08-12 20:46 ` Jiri Kosina
2016-08-12 20:46 ` Jiri Kosina
2016-08-12 20:46 ` Jiri Kosina
2016-08-12 22:00 ` Luis R. Rodriguez
2016-08-12 22:00 ` Luis R. Rodriguez
2016-08-12 22:00 ` Luis R. Rodriguez
2016-08-13 10:46 ` Greg KH
2016-08-13 10:46 ` Greg KH
2016-08-13 10:46 ` Greg KH
2016-08-13 17:54 ` Luis R. Rodriguez
2016-08-13 17:54 ` Luis R. Rodriguez
2016-08-13 17:54 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 08/13] firmware/Makefile: force recompilation if makefile changes Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 09/13] firmware: port built-in section to linker table Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 10/13] jump_label: port __jump_table to linker tables Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:49 ` Josh Poimboeuf
2016-07-22 21:49 ` Josh Poimboeuf
2016-07-22 21:49 ` Josh Poimboeuf
2016-07-22 22:26 ` Luis R. Rodriguez
2016-07-22 22:26 ` Luis R. Rodriguez
2016-07-22 22:26 ` Luis R. Rodriguez
2016-07-22 22:55 ` Josh Poimboeuf
2016-07-22 22:55 ` Josh Poimboeuf
2016-07-22 22:55 ` Josh Poimboeuf
2016-07-27 22:55 ` Luis R. Rodriguez
2016-07-27 22:55 ` Luis R. Rodriguez
2016-07-27 22:55 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 11/13] dynamic_debug: port to use " Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 12/13] kprobes: port .kprobes.text to section range Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-25 15:19 ` Masami Hiramatsu
2016-07-25 15:19 ` Masami Hiramatsu
2016-07-25 15:19 ` Masami Hiramatsu
2016-07-27 22:40 ` Luis R. Rodriguez
2016-07-27 22:40 ` Luis R. Rodriguez
2016-07-27 22:40 ` Luis R. Rodriguez
2016-07-22 21:24 ` [RFC v3 13/13] kprobes: port blacklist kprobes to linker table Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-22 21:24 ` Luis R. Rodriguez
2016-07-25 15:27 ` Masami Hiramatsu
2016-07-25 15:27 ` Masami Hiramatsu
2016-07-25 15:27 ` Masami Hiramatsu
2016-07-27 23:00 ` Luis R. Rodriguez
2016-07-27 23:00 ` Luis R. Rodriguez
2016-07-27 23:00 ` Luis R. Rodriguez
2016-07-25 13:32 ` [RFC v3 00/13] linux: generalize sections, ranges and linker tables Masami Hiramatsu
2016-07-25 13:32 ` Masami Hiramatsu
2016-07-25 13:32 ` Masami Hiramatsu
2016-07-25 13:55 ` Richard Fontana
2016-07-25 13:55 ` Richard Fontana
2016-07-25 13:55 ` Richard Fontana
2016-07-27 22:46 ` Luis R. Rodriguez
2016-07-27 22:46 ` Luis R. Rodriguez
2016-07-27 22:46 ` Luis R. Rodriguez
2016-07-27 22:27 ` Luis R. Rodriguez
2016-08-09 14:24 ` One Thousand Gnomes
2016-08-09 14:24 ` One Thousand Gnomes
2016-08-09 14:24 ` One Thousand Gnomes
2016-08-09 16:09 ` James Bottomley
2016-08-09 16:09 ` James Bottomley
2016-08-09 16:09 ` James Bottomley
2016-08-10 4:51 ` Andy Lutomirski
2016-08-10 4:51 ` Andy Lutomirski
2016-08-15 20:15 ` Alan Cox
2016-08-15 20:15 ` Alan Cox
2016-08-15 21:00 ` Steven Rostedt
2016-08-15 21:00 ` Steven Rostedt
2016-08-15 21:00 ` Steven Rostedt
2016-08-15 22:40 ` James Bottomley
2016-08-15 22:40 ` James Bottomley
2016-08-15 22:40 ` James Bottomley
2016-08-15 22:44 ` James Bottomley
2016-08-15 22:44 ` James Bottomley
2016-08-15 22:44 ` James Bottomley
2016-08-10 17:03 ` Luis R. Rodriguez
2016-08-10 17:03 ` Luis R. Rodriguez
2016-08-10 17:03 ` Luis R. Rodriguez
2016-08-09 16:48 ` Richard Fontana
2016-08-09 16:48 ` Richard Fontana
2016-08-09 16:48 ` Richard Fontana
2016-08-09 16:52 ` Richard Fontana
2016-08-09 16:52 ` Richard Fontana
2016-08-09 16:52 ` Richard Fontana
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