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| author | Richard Henderson <richard.henderson@linaro.org> | 2024-05-02 09:55:22 -0700 |
|---|---|---|
| committer | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2024-05-05 21:02:48 +0100 |
| commit | 1cde1a2a89e7c6ac1c8240b09f9b3d066cd01270 (patch) | |
| tree | f06099a79bdb5d8b87c71273d54041dd38753151 | |
| parent | 7c420a4d7c080002018af20aed56ceb0bf81ad43 (diff) | |
| download | focaccia-qemu-1cde1a2a89e7c6ac1c8240b09f9b3d066cd01270.tar.gz focaccia-qemu-1cde1a2a89e7c6ac1c8240b09f9b3d066cd01270.zip | |
linux-user/sparc: Add more hwcap bits for sparc64
Supply HWCAP_SPARC_V8PLUS, HWCAP_SPARC_MUL32, HWCAP_SPARC_DIV32, HWCAP_SPARC_POPC, HWCAP_SPARC_FSMULD, HWCAP_SPARC_VIS, HWCAP_SPARC_VIS2. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240502165528.244004-2-richard.henderson@linaro.org> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
| -rw-r--r-- | linux-user/elfload.c | 48 |
1 files changed, 34 insertions, 14 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index f9461d2844..14f08b64a1 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -968,24 +968,44 @@ const char *elf_hwcap2_str(uint32_t bit) #endif /* TARGET_ARM */ #ifdef TARGET_SPARC -#ifdef TARGET_SPARC64 -#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \ - | HWCAP_SPARC_MULDIV | HWCAP_SPARC_V9) -#ifndef TARGET_ABI32 -#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS ) +#ifndef TARGET_SPARC64 +# define ELF_CLASS ELFCLASS32 +# define ELF_ARCH EM_SPARC +#elif defined(TARGET_ABI32) +# define ELF_CLASS ELFCLASS32 +# define elf_check_arch(x) ((x) == EM_SPARC32PLUS || (x) == EM_SPARC) #else -#define elf_check_arch(x) ( (x) == EM_SPARC32PLUS || (x) == EM_SPARC ) +# define ELF_CLASS ELFCLASS64 +# define ELF_ARCH EM_SPARCV9 #endif -#define ELF_CLASS ELFCLASS64 -#define ELF_ARCH EM_SPARCV9 -#else -#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | HWCAP_SPARC_SWAP \ - | HWCAP_SPARC_MULDIV) -#define ELF_CLASS ELFCLASS32 -#define ELF_ARCH EM_SPARC -#endif /* TARGET_SPARC64 */ +#include "elf.h" + +#define ELF_HWCAP get_elf_hwcap() + +static uint32_t get_elf_hwcap(void) +{ + /* There are not many sparc32 hwcap bits -- we have all of them. */ + uint32_t r = HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | + HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV; + +#ifdef TARGET_SPARC64 + CPUSPARCState *env = cpu_env(thread_cpu); + uint32_t features = env->def.features; + + r |= HWCAP_SPARC_V9 | HWCAP_SPARC_V8PLUS; + /* 32x32 multiply and divide are efficient. */ + r |= HWCAP_SPARC_MUL32 | HWCAP_SPARC_DIV32; + /* We don't have an internal feature bit for this. */ + r |= HWCAP_SPARC_POPC; + r |= features & CPU_FEATURE_FSMULD ? HWCAP_SPARC_FSMULD : 0; + r |= features & CPU_FEATURE_VIS1 ? HWCAP_SPARC_VIS : 0; + r |= features & CPU_FEATURE_VIS2 ? HWCAP_SPARC_VIS2 : 0; +#endif + + return r; +} static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop) |