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OpenCloudOS-Kernel/arch/parisc/kernel/vmlinux.lds.S

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Kernel link layout for various "sections"
*
* Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
* Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org>
* Copyright (C) 2000 John Marvin <jsm at parisc-linux.org>
* Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
* Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
* Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
* Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
*/
/*
* Put page table entries (swapper_pg_dir) as the first thing in .bss. This
* will ensure that it has .bss alignment (PAGE_SIZE).
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*/
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
#define BSS_FIRST_SECTIONS *(.data..vm0.pmd) \
*(.data..vm0.pgd) \
*(.data..vm0.pte)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm-generic/vmlinux.lds.h>
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* needed for the processor specific cache alignment size */
#include <asm/cache.h>
#include <asm/page.h>
[PARISC] Further work for multiple page sizes More work towards supporing multiple page sizes on 64-bit. Convert some assumptions that 64bit uses 3 level page tables into testing PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups to assembler. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-04-21 04:40:23 +08:00
#include <asm/asm-offsets.h>
parisc: Fix linker script breakage. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-09-28 06:39:47 +08:00
#include <asm/thread_info.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* ld script to make hppa Linux kernel */
#ifndef CONFIG_64BIT
OUTPUT_FORMAT("elf32-hppa-linux")
OUTPUT_ARCH(hppa)
#else
OUTPUT_FORMAT("elf64-hppa-linux")
OUTPUT_ARCH(hppa:hppa2.0w)
#endif
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
ENTRY(parisc_kernel_start)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#ifndef CONFIG_64BIT
jiffies = jiffies_64 + 4;
#else
jiffies = jiffies_64;
#endif
SECTIONS
{
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
. = KERNEL_BINARY_TEXT_START;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
__init_begin = .;
HEAD_TEXT_SECTION
INIT_TEXT_SECTION(8)
. = ALIGN(PAGE_SIZE);
INIT_DATA_SECTION(PAGE_SIZE)
/* we have to discard exit text and such at runtime, not link time */
.exit.text :
{
EXIT_TEXT
}
.exit.data :
{
EXIT_DATA
}
PERCPU_SECTION(8)
. = ALIGN(PAGE_SIZE);
__init_end = .;
/* freed after init ends here */
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
_text = .; /* Text and read-only data */
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
_stext = .;
.text ALIGN(PAGE_SIZE) : {
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
parisc: add ftrace (function and graph tracer) functionality This patch adds the ftrace debugging functionality to the parisc kernel. It will currently only work with 64bit kernels, because the gcc options -pg and -ffunction-sections can't be enabled at the same time and -ffunction-sections is still needed to be able to link 32bit kernels. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-02-09 07:43:36 +08:00
KPROBES_TEXT
IRQENTRY_TEXT
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
*(.text.do_softirq)
*(.text.sys_exit)
*(.text.do_sigaltstack)
*(.text.do_fork)
*(.text.*)
*(.fixup)
*(.lock.text) /* out-of-line lock text */
*(.gnu.warning)
[PARISC] fix boot failure on 32-bit systems caused by branch stubs placed before .text In certain configurations, the resulting kernel becomes too large to boot because the linker places the long branch stubs for the merged .text section at the very start of the image. As a result, the initial transfer of control jumps to an unexpected location. Fix this by placing the head text in a separate section so the stubs for .text are not at the start of the image. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-05-17 22:34:34 +08:00
}
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
. = ALIGN(PAGE_SIZE);
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
_etext = .;
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
/* End of text section */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extable, core_kernel_data(): Make sure all archs define _sdata A new utility function (core_kernel_data()) is used to determine if a passed in address is part of core kernel data or not. It may or may not return true for RO data, but this utility must work for RW data. Thus both _sdata and _edata must be defined and continuous, without .init sections that may later be freed and replaced by volatile memory (memory that can be freed). This utility function is used to determine if data is safe from ever being freed. Thus it should return true for all RW global data that is not in a module or has been allocated, or false otherwise. Also change core_kernel_data() back to the more precise _sdata condition and document the function. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Hirokazu Takata <takata@linux-m32r.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: JamesE.J.Bottomley <jejb@parisc-linux.org> Link: http://lkml.kernel.org/r/1305855298.1465.19.camel@gandalf.stny.rr.com Signed-off-by: Ingo Molnar <mingo@elte.hu> ---- arch/alpha/kernel/vmlinux.lds.S | 1 + arch/m32r/kernel/vmlinux.lds.S | 1 + arch/m68k/kernel/vmlinux-std.lds | 2 ++ arch/m68k/kernel/vmlinux-sun3.lds | 1 + arch/mips/kernel/vmlinux.lds.S | 1 + arch/parisc/kernel/vmlinux.lds.S | 3 +++ kernel/extable.c | 12 +++++++++++- 7 files changed, 20 insertions(+), 1 deletion(-)
2011-05-20 09:34:58 +08:00
/* Start of data section */
_sdata = .;
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
RO_DATA_SECTION(8)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
#ifdef CONFIG_64BIT
. = ALIGN(16);
/* Linkage tables */
.opd : {
*(.opd)
} PROVIDE (__gp = .);
.plt : {
*(.plt)
}
.dlt : {
*(.dlt)
}
#endif
[PARISC] Add NOTES section Bisected bizarre kernel-space nullptr dereference in udev to commit 18991197b4b588255ccabf472ebc84db7b66a19c, adding the NOTES section fixes it. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2007-08-27 11:28:34 +08:00
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* unwind info */
.PARISC.unwind : {
__start___unwind = .;
*(.PARISC.unwind)
__stop___unwind = .;
}
[PARISC] Further work for multiple page sizes More work towards supporing multiple page sizes on 64-bit. Convert some assumptions that 64bit uses 3 level page tables into testing PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups to assembler. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2006-04-21 04:40:23 +08:00
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
/* writeable */
/* Make sure this is page aligned so
* that we can properly leave these
* as writable
*/
. = ALIGN(PAGE_SIZE);
data_start = .;
EXCEPTION_TABLE(8)
parisc: fix unwind with recent gcc versions kernel unwinding is broken with gcc >= 4.x. Part of the problem is that binutils seems very sensitive to where the unwind information is stored. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-11-29 04:33:11 +08:00
NOTES
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* Data */
parisc: add kernel stack overflow check Add the CONFIG_DEBUG_STACKOVERFLOW config option to enable checks to detect kernel stack overflows. Stack overflows can not be detected reliable since we do not want to introduce too much overhead. Instead, during irq processing in do_cpu_irq_mask() we check kernel stack usage of the interrupted kernel process. Kernel threads can be easily detected by checking the value of space register 7 (sr7) which is zero when running inside the kernel. Since THREAD_SIZE is 16k and PAGE_SIZE is 4k, reduce the alignment of the init thread to the lower value (PAGE_SIZE) in the kernel vmlinux.ld.S linker script. Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-08 03:28:52 +08:00
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* PA-RISC locks requires 16-byte alignment */
. = ALIGN(16);
Rename .data.lock_aligned to .data..lock_aligned. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-02-20 08:03:55 +08:00
.data..lock_aligned : {
*(.data..lock_aligned)
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* End of data section */
_edata = .;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* BSS */
parisc: fix kernel memory layout in vmlinux.ld.S When building a 64bit kernel sometimes functions in the .init section were not able to reach the standard kernel function. Main reason for this problem is, that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus the distance gets too big for short calls. One option to avoid this is to use the -mlong-calls compiler option, but this increases the binary size and introduces a performance penalty. Instead, with this patch we just lay out the binary differently. Init code is stored first, followed by text, R/O and finally R/W data. This means, that init and text code is now much closer to each other, which is sufficient to reach each other by short calls. Signed-off-by: Helge Deller <deller@gmx.de>
2013-12-01 05:07:51 +08:00
BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 8)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
_end = . ;
define new percpu interface for shared data per cpu data section contains two types of data. One set which is exclusively accessed by the local cpu and the other set which is per cpu, but also shared by remote cpus. In the current kernel, these two sets are not clearely separated out. This can potentially cause the same data cacheline shared between the two sets of data, which will result in unnecessary bouncing of the cacheline between cpus. One way to fix the problem is to cacheline align the remotely accessed per cpu data, both at the beginning and at the end. Because of the padding at both ends, this will likely cause some memory wastage and also the interface to achieve this is not clean. This patch: Moves the remotely accessed per cpu data (which is currently marked as ____cacheline_aligned_in_smp) into a different section, where all the data elements are cacheline aligned. And as such, this differentiates the local only data and remotely accessed data cleanly. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Christoph Lameter <clameter@sgi.com> Cc: <linux-arch@vger.kernel.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 16:48:12 +08:00
linker script: unify usage of discard definition Discarded sections in different archs share some commonality but have considerable differences. This led to linker script for each arch implementing its own /DISCARD/ definition, which makes maintaining tedious and adding new entries error-prone. This patch makes all linker scripts to move discard definitions to the end of the linker script and use the common DISCARDS macro. As ld uses the first matching section definition, archs can include default discarded sections by including them earlier in the linker script. ia64 is notable because it first throws away some ia64 specific subsections and then include the rest of the sections into the final image, so those sections must be discarded before the inclusion. defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64, alpha, sparc, sparc64 and s390. Michal Simek tested microblaze. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Michal Simek <monstr@monstr.eu> Cc: linux-arch@vger.kernel.org Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Tony Luck <tony.luck@intel.com>
2009-07-09 10:27:40 +08:00
STABS_DEBUG
.note 0 : { *(.note) }
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* Sections to be discarded */
linker script: unify usage of discard definition Discarded sections in different archs share some commonality but have considerable differences. This led to linker script for each arch implementing its own /DISCARD/ definition, which makes maintaining tedious and adding new entries error-prone. This patch makes all linker scripts to move discard definitions to the end of the linker script and use the common DISCARDS macro. As ld uses the first matching section definition, archs can include default discarded sections by including them earlier in the linker script. ia64 is notable because it first throws away some ia64 specific subsections and then include the rest of the sections into the final image, so those sections must be discarded before the inclusion. defconfig compile tested for x86, x86-64, powerpc, powerpc64, ia64, alpha, sparc, sparc64 and s390. Michal Simek tested microblaze. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Michal Simek <monstr@monstr.eu> Cc: linux-arch@vger.kernel.org Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Tony Luck <tony.luck@intel.com>
2009-07-09 10:27:40 +08:00
DISCARDS
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/DISCARD/ : {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#ifdef CONFIG_64BIT
[PARISC] Beautify parisc vmlinux.lds.S Introduce a consistent layout of vmlinux. The same layout has been introduced for most architectures. And the same time move a few label definitions inside the curly brackets so they are assigned the correct starting address. Before a ld inserted alignment would have casued the label to pint before the actual start of the section. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18 15:04:25 +08:00
/* temporary hack until binutils is fixed to not emit these
* for static binaries
*/
*(.interp)
*(.dynsym)
*(.dynstr)
*(.dynamic)
*(.hash)
*(.gnu.hash)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#endif
}
}