riscv64: add freestanding port

master
Ariadne Conill 2020-12-06 13:08:31 +00:00
parent 50bb9432c8
commit 0c6077854a
3 changed files with 50 additions and 2 deletions

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@ -24,7 +24,7 @@ Adding support for new architectures is easy, but you need to know assembly lang
| mips64 | ✓ | | |
| ppc | ✓ | ✓ | |
| ppc64 | ✓ | ✓ | |
| riscv64 | ✓ | | |
| riscv64 | ✓ | | |
| s390x | ✓ | | ✓ |
| x86 | ✓ | | ✓ |
| x86_64 | ✓ | | ✓ |

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@ -0,0 +1,48 @@
#ifndef LIBUCONTEXT_BITS_H
#define LIBUCONTEXT_BITS_H
typedef unsigned long libucontext_greg_t;
typedef unsigned long libucontext__riscv_mc_gp_state[32];
struct libucontext__riscv_mc_f_ext_state {
unsigned int __f[32];
unsigned int __fcsr;
};
struct libucontext__riscv_mc_d_ext_state {
unsigned long long __f[32];
unsigned int __fcsr;
};
struct libucontext__riscv_mc_q_ext_state {
unsigned long long __f[64] __attribute__((aligned(16)));
unsigned int __fcsr;
unsigned int __reserved[3];
};
union libucontext__riscv_mc_fp_state {
struct libucontext__riscv_mc_f_ext_state __f;
struct libucontext__riscv_mc_d_ext_state __d;
struct libucontext__riscv_mc_q_ext_state __q;
};
typedef struct libucontext_mcontext {
libucontext__riscv_mc_gp_state __gregs;
union libucontext__riscv_mc_fp_state __fpregs;
} libucontext_mcontext_t;
typedef struct {
void *ss_sp;
int ss_flags;
size_t ss_size;
} libucontext_stack_t;
typedef struct libucontext_ucontext {
unsigned long uc_flags;
struct libucontext_ucontext *uc_link;
libucontext_stack_t uc_stack;
unsigned char __pad[128];
libucontext_mcontext_t uc_mcontext;
} libucontext_ucontext_t;
#endif

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@ -23,7 +23,7 @@ extern void libucontext_trampoline(void);
void
libucontext_makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
libucontext_makecontext(libucontext_ucontext_t *ucp, void (*func)(void), int argc, ...)
{
libucontext_greg_t *sp, *regp;
va_list va;