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2006-06-10kbuild: modpost build fixAndrew Morton1-1/+2
scripts/mod/modpost.c: In function `check_license': scripts/mod/modpost.c:1094: parse error before `const' scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function) scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once scripts/mod/modpost.c:1095: for each function it appears in.) Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-06-09kbuild: check license compatibility when building modulesSam Ravnborg1-2/+69
Modules that uses GPL symbols can no longer be build with kbuild, the build will fail during the modpost step. When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol then warn during modpost so author are actually notified. The actual license compatibility check is shared with the kernel to make sure it is in sync. Patch originally from: Andreas Gruenbacher <[email protected]> and Ram Pai <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-06-09kbuild: export-type enhancement to modpost.cRam Pai1-16/+77
This patch provides the ability to identify the export-type of each exported symbols in Module.symvers. NOTE: It updates the Module.symvers file with the additional information as shown below. 0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL 0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL Signed-off-by: Andreas Gruenbacher <[email protected]> Signed-off-by: Ram Pai <[email protected]> Signed-off-by: Avantika Mathur <[email protected]> Signed-off-by: Valdis Kletnieks <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-06-08kbuild: fix false section mismatch with ARCH=um buildSam Ravnborg1-0/+2
Ignoring references to .init.text, .exit.text from the .plt section brought the false positives down to two warnings for a defconfig build of ARCH=um on x86_64. Signed-off-by: Sam Ravnborg <[email protected]>
2006-06-08kbuild: ignore smp_locks section warnings from init/exit codeRandy Dunlap1-0/+2
Add ".smp_locks" section to whitelist as being safe from init and exit sections. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-05-21[PATCH] kbuild: fix modpost segfault for 64bit mipsel kernelAtsushi Nemoto1-4/+27
Here is an updated r_info layout fix. Please apply "check SHT_REL sections" patch before this. 64bit mips has different r_info layout. This patch fixes modpost segfault for 64bit little endian mips kernel. Signed-off-by: Atsushi Nemoto <[email protected]> Cc: Sam Ravnborg <[email protected]> Cc: Ralf Baechle <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-05-21[PATCH] kbuild: check SHT_REL sectionsAtsushi Nemoto1-19/+46
I found that modpost can not detect section mismatch on mips and i386. On mips64, the modpost (with r_info layout fix) can detect it. The current modpst only checks SHT_RELA section but I suppose SHT_REL section should be checked also. This patch does not contain r_info layout fix. I'll post an updated r_info layout fix on next mail. Check SHT_REL sections as like as SHT_RELA sections to detect section mismatch. Signed-off-by: Atsushi Nemoto <[email protected]> Cc: Sam Ravnborg <[email protected]> Cc: Ralf Baechle <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-05-08Revert "kbuild: fix modpost segfault for 64bit mipsel kernel"Linus Torvalds1-9/+2
This reverts commit c8d8b837ebe4b4f11e1b0c4a2bdc358c697692ed, which caused problems for the x86 build. Quoth Sam: "It was discussed on mips list but apparently the fix was bogus. I will not have time to look into it so mips can carry this local fix until we get a proper fix in mainline." Signed-off-by: Linus Torvalds <[email protected]>
2006-04-30kbuild modpost - relax driver data nameRandy Dunlap1-3/+3
Relax driver data name from *_driver to *driver. This fixes the 26 section mismatch warnings in drivers/ide/pci. Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-04-30kbuild: fix modpost segfault for 64bit mipsel kernelAtsushi Nemoto1-2/+9
64bit mips has different r_info layout. This patch fixes modpost segfault for 64bit little endian mips kernel. Signed-off-by: Atsushi Nemoto <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-04-15kbuild: fix false section mismatch warningsSam Ravnborg1-4/+9
Darren Jenkins <[email protected]> pointed out a number of false positives where we referenced variables from a _driver variable. Fix it by check for that pattern and ignore it. Randy.Dunlap <[email protected]> pointed out a similar set of warnings for a number of scsi drivers. In scsi world they misname their variables *_template or *_sht so add these to list of variables that may have references to .init.text with no warning. Randy.Dunlap <[email protected]> also pointed out a scsi driver with many references to .exit.text from .rodata. This is compiler generated references and we already ignore these for .init.text, so ignore them for .exit.text also. Signed-off-by: Sam Ravnborg <[email protected]>
2006-04-11kbuild: fix NULL dereference in scripts/mod/modpost.cEric Sesterhenn1-1/+1
before is NULL in this case, concluding from the surrounding code it seems that after is the right one to use. Signed-off-by: Eric Sesterhenn <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-03-25Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds1-136/+562
* master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild: (46 commits) kbuild: remove obsoleted scripts/reference_* files kbuild: fix make help & make *pkg kconfig: fix time ordering of writes to .kconfig.d and include/linux/autoconf.h Kconfig: remove the CONFIG_CC_ALIGN_* options kbuild: add -fverbose-asm to i386 Makefile kbuild: clean-up genksyms kbuild: Lindent genksyms.c kbuild: fix genksyms build error kbuild: in makefile.txt note that Makefile is preferred name for kbuild files kbuild: replace PHONY with FORCE kbuild: Fix bug in crc symbol generating of kernel and modules kbuild: change kbuild to not rely on incorrect GNU make behavior kbuild: when warning symbols exported twice now tell user this is the problem kbuild: fix make dir/file.xx when asm symlink is missing kbuild: in the section mismatch check try harder to find symbols kbuild: fix section mismatch check for unwind on IA64 kbuild: kill false positives from section mismatch warnings for powerpc kbuild: kill trailing whitespace in modpost & friends kbuild: small update of allnoconfig description kbuild: make namespace.pl CROSS_COMPILE happy ... Trivial conflict in arch/ppc/boot/Makefile manually fixed up
2006-03-17[PATCH] kbuild: fix buffer overflow in modpostSam Ravnborg1-7/+2
Jiri Benc <[email protected]> reported that modpost would stop with SIGABRT if used with long filepaths. The error looked like: > Building modules, stage 2. > MODPOST > *** glibc detected *** scripts/mod/modpost: realloc(): invalid next size: +0x0809f588 *** > [...] Fix this by allocating at least the required memory + SZ bytes each time. Before we sometimes ended up allocating too little memory resuting in the glibc detected bug above. Based on patch originally submitted by: Jiri Benc <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-08kbuild: Fix bug in crc symbol generating of kernel and modulesLuke Yang1-2/+2
The scripts/genksyms/genksyms.c uses hardcoded "__crc_" prefix for crc symbols in kernel and modules. The prefix should be replaced by "MODULE_SYMBOL_PREFIX##__crc_" otherwise there will be warnings when MODULE_SYMBOL_PREFIX is not NULL. I am sorry my last patch for this issue is actually wrong. I revert it in this patch. Signed-off-by: Luke Yang <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-03-05kbuild: when warning symbols exported twice now tell user this is the problemSam Ravnborg1-1/+1
Warning now looks like this: WARNING: vmlinux: 'strcpy' exported twice. Previous export was in vmlinux Which gives much better hint how to fix it. Signed-off-by: Sam Ravnborg <[email protected]>
2006-03-05kbuild: in the section mismatch check try harder to find symbolsSam Ravnborg1-1/+16
When searching for symbols the only check performed was if offset equals st_value. Adding an additional check to see if st_name points t a valid name made us sort out a few more false positives and let us report more correct names in warnings. Signed-off-by: Sam Ravnborg <[email protected]>
2006-03-05kbuild: fix section mismatch check for unwind on IA64Sam Ravnborg1-2/+2
Parameters to strstr() was reversed. Signed-off-by: Sam Ravnborg <[email protected]>
2006-03-05kbuild: kill false positives from section mismatch warnings for powerpcSam Ravnborg1-2/+7
Building an allmodconfig kernel for ppc64 revealed a number of false positives - originally reported by Andrew Morton. This patch removes most if not all false positives for ppc64: Section .opd The .opd section contains function descriptors at least for ppc64. So ignore it for .init.text (was ignored for .exit.text). See description of function descriptors here: http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi-1.7.html Section .toc1 ppc64 places some static variables in .toc1 - ignore the. Section __bug_tabe BUG() and friends uses __bug_table. Ignore warnings from that section. Module parameters are placed in .data.rel for ppc64, for adjust pattern to match on section named .data* Tested with gcc: 3.4.0 and binutils 2.15.90.0.3 Signed-off-by: Sam Ravnborg <[email protected]>
2006-03-03kbuild: kill trailing whitespace in modpost & friendsSam Ravnborg1-35/+35
Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-26kbuild: whitelist false section mismatch warningsSam Ravnborg1-0/+89
In several cases the section mismatch check triggered false warnings. Following patch introduce a whitelist to 'false positives' are not warned of. Two types of patterns are recognised: 1) Typical case when a module parameter is _initdata 2) When a function pointer is assigned to a driver structure In both patterns we rely on the actual name of the variable assigned Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-26kbuild: Add copyright to modpost.cSam Ravnborg1-1/+1
It seems popular to protect your work with copyright, so I decided to do so for modpost which I patch a great deal atm. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-22kbuild: do not warn when unwind sections references .init/.exit sectionsSam Ravnborg1-1/+17
Andrew Morton reported a number of false positives for ia64 - like these: WARNING: drivers/acpi/button.o - Section mismatch: reference to .init.text: from .IA_64.unwind.init.text after '' (at offset 0x0) WARNING: drivers/acpi/button.o - Section mismatch: reference to .exit.text: from .IA_64.unwind.exit.text after '' (at offset 0x0) WARNING: drivers/acpi/processor.o - Section mismatch: reference to .init.text: from .IA_64.unwind after '' (at offset 0x1e8) They are all false positives - or at least the .c code looks OK. It is not known why sometimes a section name is appended and sometimes not. Fix is to accept references from all sections that includes "unwind." in the name. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-22kbuild: fix modpost compile with older gcc[email protected]1-3/+3
The kernel now requires that CC be 3.1.0 or higher. But we shouldn't place that requirement upon HOSTCC unless we really need to. Fixes my ia64 problem. Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: include symbol names in section mismatch warningsSam Ravnborg1-17/+47
Try to look up the symbol that is referenced. Include the symbol name in the warning message. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: fix segfault in modpostSam Ravnborg1-1/+1
Do not try to look up section name until we know it is not a special section. Otherwise we will address outside legal space and segfault. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: check for section mismatch during modpost stageSam Ravnborg1-0/+258
Section mismatch is identified as references to .init* sections from non .init sections. And likewise references to .exit.* sections outside .exit sections. .init.* sections are discarded after a module is initialized and references to .init.* sections are oops candidates. .exit.* sections are discarded when a module is built-in and thus references to .exit are also oops candidates. The checks were possible to do using 'make buildcheck' which called the two perl scripts: reference_discarded.pl and reference_init.pl. This patch just moves the same functionality inside modpost and the scripts are then obsoleted. They will though be kept for a while so users can do double checks - but note that some .o files are skipped by the perl scripts so result is not 1:1. All credit for the concept goes to Keith Owens who implemented the original perl scrips - this patch just moves it to modpost. Compared to the perl script the implmentation in modpost will be run for each kernel build - thus catching the error much sooner, but the downside is that the individual .o file are not always identified. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: warn about duplicate exported symbolsSam Ravnborg1-3/+13
In modpost introduce a check for symbols exported twice. This check caught only one victim (inet_bind_bucket_create) for which a patch is already sent to netdev. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: improved modversioning support for external modulesSam Ravnborg1-50/+73
With following patch a second option is enabled to obtain symbol information from a second external module when a external module is build. The recommended approach is to use a common kbuild file but that may be impractical in certain cases. With this patch one can copy over a Module.symvers from one external module to make symbols (and symbol versions) available for another external module. Updated documentation in Documentation/kbuild/modules.txt Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: apply CodingStyle to modpost.cSam Ravnborg1-70/+54
Just some light CodingStyle updates - no functional changes. Signed-off-by: Sam Ravnborg <[email protected]>
2006-02-19kbuild: use warn()/fatal() consistent in modpostSam Ravnborg1-10/+6
modpost.c provides warn() and fatal() - so use them all over the place. Signed-off-by: Sam Ravnborg <[email protected]>
2005-12-26kbuild: set correct KBUILD_MODNAME when using well known kernel symbols as ↵Ustyugov Roman1-2/+1
module names This patch fixes a problem when we use well known kernel symbols as module names. For example, if module source name is current.c, idle_stack.c or etc., we have a bad KBUILD_MODNAME value. For example, KBUILD_MODNAME will be "get_current()" instead of "current", or "(init_thread_union.stack)" instead of "idle_task". The trick is to define a stringify macro on the commandline - named KBUILD_STR for namespace reasons - and then to stringify the module name. There are a few uses of KBUILD_MODNAME throughout the tree but the usage is for debug and will not be harmed by this change so left untouched for now. While at it KBUILD_BASENAME was changed too. Any spinlock usage in the unix module would have created wrong section names without it. Usage in spinlock.h fixed so it no longer stringify KBUILD_BASENAME. Original patch from Ustyogov Roman - all bugs introduced by me. Signed-off-by: Sam Ravnborg <[email protected]>
2005-12-25kbuild: Fix crc-error warning on modulesLuke Yang1-2/+2
This is the patch for the following issue: In include/linux/module.h, "__crc_" and "__ksymtab_" are hard coded to be the prefix for some kinds of symbols (CRC symbol and ksymtab section). But in script /mod/modpost.c, MODULE_SYMBOL_PREFIX##"__crc_" is used as the prefix to search CRC symbols. So if an architecture (such as h8300 or Blackfin) defines MODULE_SYMBOL_PREFIX as not NULL ("_"), modpost will always warn about "no invalid crc". And it is the same with KSYMTAB_PFX. Signed-off-by: Luke Yang <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
2005-09-11[SPARC]: Fix dot-symbol exporting for good.Al Viro1-0/+6
From: Al Viro <[email protected]> Instead of playing all of these hand-coded assembler aliasing games, just translate symbol names in the name space ".sym" to "_Sym" at module load time. Signed-off-by: David S. Miller <[email protected]>
2005-08-19[SPARC]: Deal with glibc changing macro names in modpost.cBen Colline1-2/+7
GLIBC 2.3.4 and later changed the STT_REGISTER macro to STT_SPARC_REGISTER, so we need to cope with that somehow. Original patch from fabbione, reposted by Ben Collins. Signed-off-by: David S. Miller <[email protected]>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+797
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!
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