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| author | bde <bde@FreeBSD.org> | 2001-08-13 13:22:50 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 2001-08-13 13:22:50 +0000 |
| commit | 2921a0c6f2f53f032fdfa53eeea25429cdf5fccd (patch) | |
| tree | 875ba947acd69d4e0f8e235d8fb57a608cc570b2 /sys/i386 | |
| parent | bde6e6cc5a5b4bbb6ac0c999b4d6b5c4a798fb53 (diff) | |
| download | FreeBSD-src-2921a0c6f2f53f032fdfa53eeea25429cdf5fccd.zip FreeBSD-src-2921a0c6f2f53f032fdfa53eeea25429cdf5fccd.tar.gz | |
Use interrupt gates instead of trap gates for breakpoint and trace
traps, so that ddb can keep control (almost) no matter how it is
entered. This breaks time-critical interrupts while the system is
stopped in ddb, but I haven't noticed any significant problems except
that applications become confused about the time. Lost time will be
adjusted for later. Anyway, the half-baked disabling of interrupts in
Debugger() gives the same problems for the usual way of entering ddb.
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/i386/machdep.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index 31b954a..724eb4a 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -1888,9 +1888,9 @@ init386(first) for (x = 0; x < NIDT; x++) setidt(x, &IDTVEC(rsvd), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); setidt(0, &IDTVEC(div), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); - setidt(1, &IDTVEC(dbg), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); + setidt(1, &IDTVEC(dbg), SDT_SYS386IGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); setidt(2, &IDTVEC(nmi), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); - setidt(3, &IDTVEC(bpt), SDT_SYS386TGT, SEL_UPL, GSEL(GCODE_SEL, SEL_KPL)); + setidt(3, &IDTVEC(bpt), SDT_SYS386IGT, SEL_UPL, GSEL(GCODE_SEL, SEL_KPL)); setidt(4, &IDTVEC(ofl), SDT_SYS386TGT, SEL_UPL, GSEL(GCODE_SEL, SEL_KPL)); setidt(5, &IDTVEC(bnd), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); setidt(6, &IDTVEC(ill), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL)); |
