diff options
Diffstat (limited to 'sys/compat/ndis/pe_var.h')
| -rw-r--r-- | sys/compat/ndis/pe_var.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sys/compat/ndis/pe_var.h b/sys/compat/ndis/pe_var.h index d267a8c..e156f0f 100644 --- a/sys/compat/ndis/pe_var.h +++ b/sys/compat/ndis/pe_var.h @@ -422,6 +422,51 @@ typedef struct image_patch_table image_patch_table; #define __stdcall __attribute__((__stdcall__)) #endif + +/* + * This mess allows us to call a _fastcall style routine with our + * version of gcc, which lacks __attribute__((__fastcall__)). Only + * has meaning on x86; everywhere else, it's a no-op. + */ + +#ifdef __i386__ +typedef __stdcall int (*fcall)(void); +typedef __stdcall int (*fcall2)(int); +static __inline uint32_t +fastcall1(fcall f, uint32_t a) +{ + __asm__ __volatile__ ("movl %0,%%ecx" : : "r" (a)); + return(f()); +} + +static __inline uint32_t +fastcall2(fcall f, uint32_t a, uint32_t b) +{ + __asm__ __volatile__ ("movl %0,%%ecx" : : "r" (a)); + __asm__ __volatile__ ("movl %0,%%edx" : : "r" (b)); + return(f()); +} + +static __inline uint32_t +fastcall3(fcall2 f, uint32_t a, uint32_t b, uint32_t c) +{ + __asm__ __volatile__ ("movl %0,%%ecx" : : "r" (a)); + __asm__ __volatile__ ("movl %0,%%edx" : : "r" (b)); + return(f(c)); +} + +#define FASTCALL1(f, a) \ + fastcall1((fcall)(f), (uint32_t)(a)) +#define FASTCALL2(f, a, b) \ + fastcall2((fcall)(f), (uint32_t)(a), (uint32_t)(b)) +#define FASTCALL3(f, a, b, c) \ + fastcall3((fcall2)(f), (uint32_t)(a), (uint32_t)(b), (uint32_t)(c)) +#else +#define FASTCALL1(f, a) (f)((a)) +#define FASTCALL2(f, a, b) (f)((a), (b)) +#define FASTCALL3(f, a, b, c) (f)((a), (b), (c)) +#endif /* __i386__ */ + __BEGIN_DECLS extern int pe_get_dos_header(vm_offset_t, image_dos_header *); extern int pe_is_nt_image(vm_offset_t); |
