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linux-user/elfload: Introduce elf_hwcap_str() on s390x 

It is required for implementing /proc/cpuinfo emulation.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230605113950.1169228-4-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Ilya Leoshkevich 2023-06-05 13:39:49 +02:00 committed by Thomas Huth
parent e1b819c804
commit e19807bee3
2 changed files with 28 additions and 0 deletions
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27
linux-user/elfload.c
View File

@ -1605,6 +1605,33 @@ uint32_t get_elf_hwcap(void)
return hwcap;
}
const char *elf_hwcap_str(uint32_t bit)
{
static const char *hwcap_str[] = {
[HWCAP_S390_ESAN3] = "esan3",
[HWCAP_S390_ZARCH] = "zarch",
[HWCAP_S390_STFLE] = "stfle",
[HWCAP_S390_MSA] = "msa",
[HWCAP_S390_LDISP] = "ldisp",
[HWCAP_S390_EIMM] = "eimm",
[HWCAP_S390_DFP] = "dfp",
[HWCAP_S390_HPAGE] = "edat",
[HWCAP_S390_ETF3EH] = "etf3eh",
[HWCAP_S390_HIGH_GPRS] = "highgprs",
[HWCAP_S390_TE] = "te",
[HWCAP_S390_VXRS] = "vx",
[HWCAP_S390_VXRS_BCD] = "vxd",
[HWCAP_S390_VXRS_EXT] = "vxe",
[HWCAP_S390_GS] = "gs",
[HWCAP_S390_VXRS_EXT2] = "vxe2",
[HWCAP_S390_VXRS_PDE] = "vxp",
[HWCAP_S390_SORT] = "sort",
[HWCAP_S390_DFLT] = "dflt",
};
return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL;
}
static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
{
regs->psw.addr = infop->entry;

1
linux-user/loader.h
View File

@ -58,6 +58,7 @@ extern unsigned long guest_stack_size;
#ifdef TARGET_S390X
uint32_t get_elf_hwcap(void);
const char *elf_hwcap_str(uint32_t bit);
#endif
#endif /* LINUX_USER_LOADER_H */