diff options
| -rw-r--r-- | include/elf.h | 1 | ||||
| -rw-r--r-- | linux-user/elfload.c | 30 |
2 files changed, 30 insertions, 1 deletions
diff --git a/include/elf.h b/include/elf.h index 667af6fc63..1599ab22d8 100644 --- a/include/elf.h +++ b/include/elf.h @@ -254,6 +254,7 @@ typedef int64_t Elf64_Sxword; #define AT_SECURE 23 /* boolean, was exec suid-like? */ #define AT_BASE_PLATFORM 24 /* string identifying real platforms */ #define AT_RANDOM 25 /* address of 16 random bytes */ +#define AT_HWCAP2 26 /* extension of AT_HWCAP */ #define AT_EXECFN 31 /* filename of the executable */ #define AT_SYSINFO 32 /* address of kernel entry point */ #define AT_SYSINFO_EHDR 33 /* address of kernel vdso */ diff --git a/linux-user/elfload.c b/linux-user/elfload.c index ad07c43e75..995f999768 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -20,6 +20,7 @@ #undef ARCH_DLINFO #undef ELF_PLATFORM #undef ELF_HWCAP +#undef ELF_HWCAP2 #undef ELF_CLASS #undef ELF_DATA #undef ELF_ARCH @@ -353,6 +354,14 @@ enum ARM_HWCAP_ARM_EVTSTRM = 1 << 21, }; +enum { + ARM_HWCAP2_ARM_AES = 1 << 0, + ARM_HWCAP2_ARM_PMULL = 1 << 1, + ARM_HWCAP2_ARM_SHA1 = 1 << 2, + ARM_HWCAP2_ARM_SHA2 = 1 << 3, + ARM_HWCAP2_ARM_CRC32 = 1 << 4, +}; + /* The commpage only exists for 32 bit kernels */ #define TARGET_HAS_VALIDATE_GUEST_SPACE @@ -416,6 +425,7 @@ static int validate_guest_space(unsigned long guest_base, } #define ELF_HWCAP get_elf_hwcap() +#define ELF_HWCAP2 get_elf_hwcap2() static uint32_t get_elf_hwcap(void) { @@ -448,11 +458,22 @@ static uint32_t get_elf_hwcap(void) */ GET_FEATURE(ARM_FEATURE_VFP3, ARM_HWCAP_ARM_VFPD32); GET_FEATURE(ARM_FEATURE_LPAE, ARM_HWCAP_ARM_LPAE); -#undef GET_FEATURE return hwcaps; } +static uint32_t get_elf_hwcap2(void) +{ + ARMCPU *cpu = ARM_CPU(thread_cpu); + uint32_t hwcaps = 0; + + GET_FEATURE(ARM_FEATURE_V8_AES, ARM_HWCAP2_ARM_AES); + GET_FEATURE(ARM_FEATURE_CRC, ARM_HWCAP2_ARM_CRC32); + return hwcaps; +} + +#undef GET_FEATURE + #else /* 64 bit ARM definitions */ #define ELF_START_MMAP 0x80000000 @@ -1486,6 +1507,9 @@ static abi_ulong create_elf_tables(abi_ulong p, int argc, int envc, #ifdef DLINFO_ARCH_ITEMS size += DLINFO_ARCH_ITEMS * 2; #endif +#ifdef ELF_HWCAP2 + size += 2; +#endif size += envc + argc + 2; size += 1; /* argc itself */ size *= n; @@ -1519,6 +1543,10 @@ static abi_ulong create_elf_tables(abi_ulong p, int argc, int envc, NEW_AUX_ENT(AT_CLKTCK, (abi_ulong) sysconf(_SC_CLK_TCK)); NEW_AUX_ENT(AT_RANDOM, (abi_ulong) u_rand_bytes); +#ifdef ELF_HWCAP2 + NEW_AUX_ENT(AT_HWCAP2, (abi_ulong) ELF_HWCAP2); +#endif + if (k_platform) NEW_AUX_ENT(AT_PLATFORM, u_platform); #ifdef ARCH_DLINFO |