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linux-user/i386: Add vdso

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Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1267
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson
2021-07-01 12:07:44 -07:00
parent 2fa536d107
commit a1367443ba
8 changed files with 271 additions and 2 deletions
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19
linux-user/elfload.c
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@ -305,12 +305,27 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUX86State *en
(*regs)[15] = tswapreg(env->regs[R_ESP]);
(*regs)[16] = tswapreg(env->segs[R_SS].selector & 0xffff);
}
#endif
/*
* i386 is the only target which supplies AT_SYSINFO for the vdso.
* All others only supply AT_SYSINFO_EHDR.
*/
#define DLINFO_ARCH_ITEMS (vdso_info != NULL)
#define ARCH_DLINFO \
do { \
if (vdso_info) { \
NEW_AUX_ENT(AT_SYSINFO, vdso_info->entry); \
} \
} while (0)
#define VDSO_HEADER "vdso.c.inc"
#endif /* TARGET_X86_64 */
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE 4096
#endif
#endif /* TARGET_I386 */
#ifdef TARGET_ARM