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linux-user/riscv: Add vdso

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Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-06 15:49:50 -07:00
parent c7bc2a8fb1
commit 468c1bb5ca
10 changed files with 303 additions and 0 deletions
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8
linux-user/riscv/signal.c
View file

@ -21,6 +21,7 @@
#include "user-internals.h"
#include "signal-common.h"
#include "linux-user/trace.h"
#include "vdso-asmoffset.h"
/* Signal handler invocation must be transparent for the code being
interrupted. Complete CPU (hart) state is saved on entry and restored
@ -37,6 +38,8 @@ struct target_sigcontext {
uint32_t fcsr;
}; /* cf. riscv-linux:arch/riscv/include/uapi/asm/ptrace.h */
QEMU_BUILD_BUG_ON(offsetof(struct target_sigcontext, fpr) != offsetof_freg0);
struct target_ucontext {
abi_ulong uc_flags;
abi_ptr uc_link;
@ -51,6 +54,11 @@ struct target_rt_sigframe {
struct target_ucontext uc;
};
QEMU_BUILD_BUG_ON(sizeof(struct target_rt_sigframe)
!= sizeof_rt_sigframe);
QEMU_BUILD_BUG_ON(offsetof(struct target_rt_sigframe, uc.uc_mcontext)
!= offsetof_uc_mcontext);
static abi_ulong get_sigframe(struct target_sigaction *ka,
CPURISCVState *regs, size_t framesize)
{