diff options
| author | Michael Neuling <mikey@neuling.org> | 2013-04-17 19:33:11 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-04-26 08:08:16 +0200 |
| commit | 2171364d1a92d0a101b455315de7a92efb566008 (patch) | |
| tree | f9950115c41fc580b106d6c836ca567bb9af9b35 /fs | |
| parent | powerpc/powernv: Fix missing Kconfig dependency for MSIs (diff) | |
| download | linux-2171364d1a92d0a101b455315de7a92efb566008.tar.xz linux-2171364d1a92d0a101b455315de7a92efb566008.zip | |
powerpc: Add HWCAP2 aux entry
We are currently out of free bits in AT_HWCAP. With POWER8, we have
several hardware features that we need to advertise.
Tested on POWER and x86.
Signed-off-by: Michael Neuling <michael@neuling.org>
Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/binfmt_elf.c | 3 | ||||
| -rw-r--r-- | fs/binfmt_elf_fdpic.c | 8 |
2 files changed, 7 insertions, 4 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 86af964c2425..f1c64a27257e 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -240,6 +240,9 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec, NEW_AUX_ENT(AT_EGID, from_kgid_munged(cred->user_ns, cred->egid)); NEW_AUX_ENT(AT_SECURE, security_bprm_secureexec(bprm)); NEW_AUX_ENT(AT_RANDOM, (elf_addr_t)(unsigned long)u_rand_bytes); +#ifdef ELF_HWCAP2 + NEW_AUX_ENT(AT_HWCAP2, ELF_HWCAP2); +#endif NEW_AUX_ENT(AT_EXECFN, bprm->exec); if (k_platform) { NEW_AUX_ENT(AT_PLATFORM, diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 9c13e023e2b7..bf2381d00132 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -483,7 +483,6 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, size_t platform_len = 0, len; char *k_platform, *k_base_platform; char __user *u_platform, *u_base_platform, *p; - long hwcap; int loop; int nr; /* reset for each csp adjustment */ @@ -502,8 +501,6 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, return -EFAULT; #endif - hwcap = ELF_HWCAP; - /* * If this architecture has a platform capability string, copy it * to userspace. In some cases (Sparc), this info is impossible @@ -617,7 +614,10 @@ static int create_elf_fdpic_tables(struct linux_binprm *bprm, nr = 0; csp -= DLINFO_ITEMS * 2 * sizeof(unsigned long); - NEW_AUX_ENT(AT_HWCAP, hwcap); + NEW_AUX_ENT(AT_HWCAP, ELF_HWCAP); +#ifdef ELF_HWCAP2 + NEW_AUX_ENT(AT_HWCAP2, ELF_HWCAP2); +#endif NEW_AUX_ENT(AT_PAGESZ, PAGE_SIZE); NEW_AUX_ENT(AT_CLKTCK, CLOCKS_PER_SEC); NEW_AUX_ENT(AT_PHDR, exec_params->ph_addr); |