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| author | Petter Rodhelind <petter.rodhelind@gmail.com> | 2020-01-14 11:41:08 +0100 |
|---|---|---|
| committer | Petter Rodhelind <petter.rodhelind@gmail.com> | 2020-01-14 11:41:08 +0100 |
| commit | 02d7aa8915f9c3a3288dab01f321eb94ba219e3b (patch) | |
| tree | f053238978479e408a2b83571443e132f30586ab /src/libmach/dwarfcfa.c | |
| parent | c0c9d8f883dfd3a7f5a74499d91bb95884b15873 (diff) | |
| parent | 3d1382b98a502d0c34d5ba2c462396acc515016e (diff) | |
| download | plan9port-02d7aa8915f9c3a3288dab01f321eb94ba219e3b.tar.gz plan9port-02d7aa8915f9c3a3288dab01f321eb94ba219e3b.tar.bz2 plan9port-02d7aa8915f9c3a3288dab01f321eb94ba219e3b.zip | |
Merge remote-tracking branch 'upstream/master'
Diffstat (limited to 'src/libmach/dwarfcfa.c')
| -rw-r--r-- | src/libmach/dwarfcfa.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/src/libmach/dwarfcfa.c b/src/libmach/dwarfcfa.c index 4980c2cf..ee303009 100644 --- a/src/libmach/dwarfcfa.c +++ b/src/libmach/dwarfcfa.c @@ -1,11 +1,11 @@ /* * Dwarf call frame unwinding. * - * The call frame unwinding values are encoded using a state machine - * like the pc<->line mapping, but it's a different machine. - * The expressions to generate the old values are similar in function to the + * The call frame unwinding values are encoded using a state machine + * like the pc<->line mapping, but it's a different machine. + * The expressions to generate the old values are similar in function to the * ``dwarf expressions'' used for locations in the code, but of course not - * the same encoding. + * the same encoding. */ #include <u.h> #include <libc.h> @@ -97,7 +97,7 @@ out: /* * XXX This turns out to be much more expensive than the actual * running of the machine in dexec. It probably makes sense to - * cache the last 10 or so fde's we've found, since stack traces + * cache the last 10 or so fde's we've found, since stack traces * will keep asking for the same info over and over. */ static int @@ -167,7 +167,7 @@ findfde(Dwarf *d, ulong pc, State *s, DwarfBuf *fde) } werrstr("cannot find call frame information for pc 0x%lux", pc); return -1; - + } static int @@ -209,7 +209,7 @@ dexec(DwarfBuf *b, State *s, int locstop) if(locstop) return 0; continue; - + case 2: /* offset rule */ arg1 = c&0x3F; arg2 = dwarfget128(b); @@ -331,12 +331,12 @@ dexec(DwarfBuf *b, State *s, int locstop) s->cfa->offset = arg2; continue; - case 0x0D: /* def cfa register */ + case 0x0D: /* def cfa register */ arg1 = dwarfget128(b); if(trace) fprint(2, "cfa reg r%ld\n", arg1); if(s->cfa->type != RuleRegOff){ werrstr("change CFA register but CFA not in register+offset form"); - return -1; + return -1; } if(checkreg(s, arg1) < 0) return -1; @@ -390,6 +390,5 @@ dexec(DwarfBuf *b, State *s, int locstop) return -1; } } - /* not reached */ + /* not reached */ } - |