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bsd-user: Create setup_sigframe_arch to setup sigframe context

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Define setup_sigframe_arch whose job it is to setup the mcontext for the
sigframe. Implement for x86 to just call mcontext.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2022-01-19 11:46:05 -07:00
parent 4550c661bf
commit 2373a62ae9
3 changed files with 29 additions and 0 deletions
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3
bsd-user/freebsd/target_os_signal.h
View File

@ -4,6 +4,9 @@
#include "target_os_siginfo.h"
#include "target_arch_signal.h"
abi_long setup_sigframe_arch(CPUArchState *env, abi_ulong frame_addr,
struct target_sigframe *frame, int flags);
/* Compare to sys/signal.h */
#define TARGET_SIGHUP 1 /* hangup */
#define TARGET_SIGINT 2 /* interrupt */

13
bsd-user/i386/signal.c
View File

@ -32,6 +32,19 @@ abi_long set_sigtramp_args(CPUX86State *env, int sig,
return 0;
}
/*
* Compare to i386/i386/exec_machdep.c sendsig()
* Assumes that the memory is locked if frame points to user memory.
*/
abi_long setup_sigframe_arch(CPUX86State *env, abi_ulong frame_addr,
struct target_sigframe *frame, int flags)
{
target_mcontext_t *mcp = &frame->sf_uc.uc_mcontext;
get_mcontext(env, mcp, flags);
return 0;
}
/* Compare to i386/i386/machdep.c get_mcontext() */
abi_long get_mcontext(CPUX86State *regs, target_mcontext_t *mcp, int flags)
{

13
bsd-user/x86_64/signal.c
View File

@ -30,6 +30,19 @@ abi_long set_sigtramp_args(CPUX86State *regs,
return 0;
}
/*
* Compare to amd64/amd64/exec_machdep.c sendsig()
* Assumes that the memory is locked if frame points to user memory.
*/
abi_long setup_sigframe_arch(CPUX86State *env, abi_ulong frame_addr,
struct target_sigframe *frame, int flags)
{
target_mcontext_t *mcp = &frame->sf_uc.uc_mcontext;
get_mcontext(env, mcp, flags);
return 0;
}
/* Compare to amd64/amd64/machdep.c get_mcontext() */
abi_long get_mcontext(CPUX86State *regs,
target_mcontext_t *mcp, int flags)