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| author | David Daney <ddaney@caviumnetworks.com> | 2010-01-28 16:52:12 -0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-02-27 12:53:20 +0100 |
| commit | 874fd3b5acc20f2a464409045aef3b2288069787 (patch) | |
| tree | 667316d08ee5b5b4be99e75dca7bcf9ff315503a /arch/mips | |
| parent | 3b839070f11295735ce8d9ef580c5eb23417aabf (diff) | |
| download | linux-3.10-874fd3b5acc20f2a464409045aef3b2288069787.tar.gz linux-3.10-874fd3b5acc20f2a464409045aef3b2288069787.tar.bz2 linux-3.10-874fd3b5acc20f2a464409045aef3b2288069787.zip | |
MIPS: Allow the auxv's elf_platform entry to be set.
The userspace runtime linker uses the elf_platform to find the libraries
optimized for the current CPU archecture variant. First we need to allow it
to be set to something other than NULL. Follow-on patches will set some
values for specific CPUs.
GLIBC already does the right thing. The kernel just needs to supply good
data.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/891/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/elf.h | 14 | ||||
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 1 |
2 files changed, 8 insertions, 7 deletions
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h index 7a6a35dbe52..e53d7bed5cd 100644 --- a/arch/mips/include/asm/elf.h +++ b/arch/mips/include/asm/elf.h @@ -334,14 +334,14 @@ extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); #define ELF_HWCAP (0) -/* This yields a string that ld.so will use to load implementation - specific libraries for optimization. This is more specific in - intent than poking at uname or /proc/cpuinfo. - - For the moment, we have only optimizations for the Intel generations, - but that could change... */ +/* + * This yields a string that ld.so will use to load implementation + * specific libraries for optimization. This is more specific in + * intent than poking at uname or /proc/cpuinfo. + */ -#define ELF_PLATFORM (NULL) +#define ELF_PLATFORM __elf_platform +extern const char *__elf_platform; /* * See comments in asm-alpha/elf.h, this is the same thing diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 1773544e3db..494e8ab48d6 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -926,6 +926,7 @@ static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu) } const char *__cpu_name[NR_CPUS]; +const char *__elf_platform; __cpuinit void cpu_probe(void) { |