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| author | Jim Keniston <jkenisto@us.ibm.com> | 2009-03-11 14:42:29 -0700 |
|---|---|---|
| committer | Jim Keniston <jkenisto@us.ibm.com> | 2009-03-11 14:42:29 -0700 |
| commit | d8b7418ba4cf2bf2571f66a42517b9bced1b9132 (patch) | |
| tree | 13719747eb5f0fedb4e5fd4b467dd4b8587d4b96 /runtime/uprobes/uprobes_x86.c | |
| parent | e248aea9a04dd0d3c4e066afdca52176aaf9a536 (diff) | |
| download | systemtap-steved-d8b7418ba4cf2bf2571f66a42517b9bced1b9132.tar.gz systemtap-steved-d8b7418ba4cf2bf2571f66a42517b9bced1b9132.tar.xz systemtap-steved-d8b7418ba4cf2bf2571f66a42517b9bced1b9132.zip | |
Don't reject opcode 0x9b -- fwait, which is also the first byte of
pseudo-instructions like fclex, finit, fstsw, and fstcw.
Do reject opcode 0x82 in 64-bit mode.
Diffstat (limited to 'runtime/uprobes/uprobes_x86.c')
| -rw-r--r-- | runtime/uprobes/uprobes_x86.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/runtime/uprobes/uprobes_x86.c b/runtime/uprobes/uprobes_x86.c index e3bdf8ff..404c9518 100644 --- a/runtime/uprobes/uprobes_x86.c +++ b/runtime/uprobes/uprobes_x86.c @@ -45,8 +45,8 @@ static const unsigned long long good_insns_64[256 / 64] = { W(0x50, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 50 */ W(0x60, 0,0,0,1,1,1,0,0,1,1,1,1,0,0,0,0)| /* 60 */ W(0x70, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1), /* 70 */ - W(0x80, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 80 */ - W(0x90, 1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1)| /* 90 */ + W(0x80, 1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 80 */ + W(0x90, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 90 */ W(0xa0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* a0 */ W(0xb0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1), /* b0 */ W(0xc0, 1,1,1,1,0,0,1,1,1,1,1,1,0,0,0,0)| /* c0 */ @@ -71,7 +71,7 @@ static const unsigned long long good_insns_32[256 / 64] = { W(0x60, 1,1,1,0,1,1,0,0,1,1,1,1,0,0,0,0)| /* 60 */ W(0x70, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1), /* 70 */ W(0x80, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 80 */ - W(0x90, 1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1)| /* 90 */ + W(0x90, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* 90 */ W(0xa0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)| /* a0 */ W(0xb0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1), /* b0 */ W(0xc0, 1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0)| /* c0 */ @@ -119,7 +119,7 @@ static const unsigned long long good_2byte_insns[256 / 64] = { * 0f - lar, lsl, syscall, clts, sysret, sysenter, sysexit, invd, wbinvd, ud2 * * invalid opcodes in 64-bit mode: - * 06, 0e, 16, 1e, 27, 2f, 37, 3f, 60-62, c4-c5, d4-d5 + * 06, 0e, 16, 1e, 27, 2f, 37, 3f, 60-62, 82, c4-c5, d4-d5 * * 63 - we support this opcode in x86_64 but not in i386. * opcodes we may need to refine support for: @@ -141,7 +141,6 @@ static const unsigned long long good_2byte_insns[256 / 64] = { * 26, 2e, 36, 3e - es:, cs:, ss:, ds: segment prefixes -- * but 64 and 65 (fs: and gs:) seems to be used, so we support them. * 67 - addr16 prefix - * 9b - wait/fwait * ce - into * f0 - lock prefix */ |