Minix/minix
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

use linker to align fpu state save area

Browse Source
This commit is contained in:
Ben Gras
2012-04-19 15:06:47 +02:00
parent 093c949274
commit a149be43fc
11 changed files with 45 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/arch/i386/include/archtypes.h
View File

@@ -26,19 +26,10 @@ typedef struct segframe {
reg_t p_ldt_sel; /* selector in gdt with ldt base and limit */
reg_t p_cr3; /* page table root */
u32_t *p_cr3_v;
char *fpu_state;
struct segdesc_s p_ldt[LDT_SIZE]; /* CS, DS and remote */
} segframe_t;
/* fpu_state_s is used in kernel proc table.
* Any changes in this structure requires changes in sconst.h,
* since this structure is used in proc structure. */
struct fpu_state_s {
union fpu_state_u *fpu_save_area_p; /* 16-aligned fpu_save_area */
/* fpu_image includes 512 bytes of image itself and
* additional 15 bytes required for manual 16-byte alignment. */
char fpu_image[527];
};
#define INMEMORY(p) (!p->p_seg.p_cr3 || get_cpulocal_var(ptproc) == p)
typedef u32_t atomic_t; /* access to an aligned 32bit value is atomic on i386 */