Hello, I am looking for the symbol CR4_FEATURES_ADDR which must be gone in one of the last kernel revision. Now how I do use pickaxe to track any changes that involve my missing symbol? Or is there a better way to track that change down?
Thomas
threads / discuss / 4400
Using pickaxe to track changed symbol CR4_FEATURES_ADDR
Subject: Using pickaxe to track changed symbol CR4_FEATURES_ADDR
Andreas EricssonRe: Using pickaxe to track changed symbol CR4_FEATURES_ADDR
Thomas Glanzmann wrote:
Show 6 quoted lines
> Hello, > I am looking for the symbol CR4_FEATURES_ADDR which must be gone in one > of the last kernel revision. Now how I do use pickaxe to track any > changes that involve my missing symbol? Or is there a better way to > track that change down? >
$ git whatchanged -S'CR4_FEATURES_ADDR'
last time I checked, but that was 10 days and an immense amount of cheap turkish alcohol ago so it's quite possible that I'm wrong.
-- Andreas Ericsson andreas.ericsson@op5.se OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231
Junio C HamanoRe: Using pickaxe to track changed symbol CR4_FEATURES_ADDR
Thomas Glanzmann <sithglan@stud.uni-erlangen.de> writes:
> I am looking for the symbol CR4_FEATURES_ADDR which must be gone in one > of the last kernel revision. Now how I do use pickaxe to track any > changes that involve my missing symbol? Or is there a better way to > track that change down?
None of the major recent versions seem to have the symbol.
: gitster; git grep -e CR4_FEATURES_ADDR \
v2.6.12-rc2 v2.6.12 v2.6.13 v2.6.14 v2.6.15 \
v2.6.16and I did not get any google hits for "CR4_FEATURES_ADDR". Are you spelling it right?
Re: Using pickaxe to track changed symbol CR4_FEATURES_ADDR
On Mon, 05 Jun 2006 13:03:34 -0700 Junio C Hamano wrote:
Show 15 quoted lines
> Thomas Glanzmann <sithglan@stud.uni-erlangen.de> writes: > > > I am looking for the symbol CR4_FEATURES_ADDR which must be gone in one > > of the last kernel revision. Now how I do use pickaxe to track any > > changes that involve my missing symbol? Or is there a better way to > > track that change down? > > None of the major recent versions seem to have the symbol. > > : gitster; git grep -e CR4_FEATURES_ADDR \ > v2.6.12-rc2 v2.6.12 v2.6.13 v2.6.14 v2.6.15 \ > v2.6.16 > > and I did not get any google hits for "CR4_FEATURES_ADDR". Are > you spelling it right?
include/asm-i386/processor.h has names like:
/* * Intel CPU features in CR4 */ #define X86_CR4_VME 0x0001 /* enable vm86 extensions */ #define X86_CR4_PVI 0x0002 /* virtual interrupts flag enable */ #define X86_CR4_TSD 0x0004 /* disable time stamp at ipl 3 */ #define X86_CR4_DE 0x0008 /* enable debugging extensions */ #define X86_CR4_PSE 0x0010 /* enable page size extensions */ #define X86_CR4_PAE 0x0020 /* enable physical address extensions */ #define X86_CR4_MCE 0x0040 /* Machine check enable */ #define X86_CR4_PGE 0x0080 /* enable global pages */ #define X86_CR4_PCE 0x0100 /* enable performance counters at ipl 3 */ #define X86_CR4_OSFXSR 0x0200 /* enable fast FPU save and restore */ #define X86_CR4_OSXMMEXCPT 0x0400 /* enable unmasked SSE exceptions */
extern unsigned long mmu_cr4_features;
static inline void set_in_cr4 (unsigned long mask)
{
unsigned cr4;
mmu_cr4_features |= mask;
cr4 = read_cr4();
cr4 |= mask;
write_cr4(cr4);
}static inline void clear_in_cr4 (unsigned long mask)
{
unsigned cr4;
mmu_cr4_features &= ~mask;
cr4 = read_cr4();
cr4 &= ~mask;
write_cr4(cr4);
}but nothing exactly like you asked about.
--- ~Randy
Re: Using pickaxe to track changed symbol CR4_FEATURES_ADDR
Hello Randy, I confused it. CR4_FEATURES_ADDR was in the glue code of parallels binary only modules, but it sounded like a a MMU definition. Thanks a lot. That was why my pickaxe did not work out in the first place. However I have a workaround for the damn build problem.
See http://wwwcip.informatik.uni-erlangen.de/~sithglan/parallels/
Thanks,
Thomas