user/sven/linux.git/scripts/gcc-version.sh, branch v4.4.243

kbuild: Make scripts executable

2014-08-20T14:03:45Z

The Makefiles call the respective interpreter explicitly, but this makes it easier to use the scripts manually. Signed-off-by: Michal Marek

kbuild: Fix gcc -x syntax

2012-10-03T07:03:24Z

The correct syntax for gcc -x is "gcc -x assembler", not "gcc -xassembler". Even though the latter happens to work, the former is what is documented in the manual page and thus what gcc wrappers such as icecream do expect. This isn't a cosmetic change. The missing space prevents icecream from recognizing compilation tasks it can't handle, leading to silent kernel miscompilations. Besides me, credits go to Michael Matz and Dirk Mueller for investigating the miscompilation issue and tracking it down to this incorrect -x parameter syntax. Signed-off-by: Jean Delvare Acked-by: Ingo Molnar Cc: stable@vger.kernel.org Cc: Bernhard Walle Cc: Michal Marek Cc: Ralf Baechle Signed-off-by: Michal Marek

Remove bashisms from scripts

2009-06-09T20:37:54Z

The '-e' option to echo and brace expansion are not guaranteed to be supported by a POSIX-compliant /bin/sh (e.g. dash) Signed-off-by: dann frazier Signed-off-by: Andrew Morton Signed-off-by: Sam Ravnborg

kbuild: fix buglet in gcc-version.sh

2008-01-28T22:14:36Z

Greg Schafer reported: ==== $make mrproper scripts/gcc-version.sh: [[: command not found This is on a very old host with an ancient bash as /bin/sh. But I have CONFIG_SHELL set and pointing to a modern bash. Something is wrong. This doesn't happen with 2.6.23 ==== Fixed using a more common string equality test. Signed-off-by: Sam Ravnborg Cc: Greg Schafer Cc: Jesper Juhl

kbuild: improve scripts/gcc-version.sh output a bit when called without args

2007-10-12T19:15:30Z

Currently, if you call scripts/gcc-version.sh without arguments it will generate this output : $ sh scripts/gcc-version.sh scripts/gcc-version.sh: line 12: [: =: unary operator expected scripts/gcc-version.sh: line 16: -E: command not found scripts/gcc-version.sh: line 17: -E: command not found 0000 Not too pretty. I believe this is an improvement : $ sh scripts/gcc-version.sh Error: No compiler specified. Usage: scripts/gcc-version.sh Signed-off-by: Jesper Juhl Signed-off-by: Sam Ravnborg

kbuild: New 'cc-fullversion' macro

2007-07-16T19:15:47Z

Prints a six-digit string including the GCC patchlevel. Also fix the 'usage' comment for cc-version. Signed-off-by: Segher Boessenkool Signed-off-by: Sam Ravnborg

[PATCH] Add CONFIG for -mregparm=3

2004-02-19T00:37:55Z

From: Andi Kleen , me. Using -mregparm=3 shrinks the kernel further: (compiled with gcc 3.4, without -funit-at-a-time, using the later and together with -Os shrinks .text even more, making over 700KB difference) 4129346 708629 207240 5045215 4cfbdf vmlinux 3892905 708629 207240 4808774 496046 vmlinux-regparm This one helps even more, >236KB .text difference. Clearly worth the effort. This patch adds an option to use -mregparm=3 while compiling the kernel. I did an LTP run and it showed no additional failures over an non regparm kernel. According to some gcc developers it should be safe to use in all gccs that are still supports (2.95 and up) I didn't make it the default because it will break all binary only modules (although they can be fixed by adding a wrapper that calls them with "asmlinkage"). Actually it may be a good idea to make this default with 2.7.1 or somesuch. We add new kbuild infrastructure: the command scripts/gcc-version.sh $(CC) will print out the version of gcc in a canonical 4-digit form suitable for performing numerical tests against. DESC arch/i386/Makefile,scripts/gcc-version.sh,Makefile small fixes EDESC From: Serge Belyshev <33554432@mtu-net.ru> arch/i386/Makefile: * omitted $(KBUILD_SRC)/ in script call. scripts/gcc-version.sh: * GNU tail no longer supports 'tail -1' syntax. We should consider adding -fweb option: vanilla: $ size vmlinux text data bss dec hex filename 3056270 526780 386056 3969106 3c9052 vmlinux with -fweb: $ size vmlinux text data bss dec hex filename 3049523 526780 386056 3962359 3c75f7 vmlinux Also note 0.1 ... 1.0% speedup in various benchmarks. This option is not enabled by default at -O2 because it (like -fomit-frame-pointer) makes debugging impossible.