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Improve signals and memory protection

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- Document sigaction()
- Simplify New Technology fork() code
- Testing and many bug fixes for mprotect()
- Distribute Intel Xed ILD in the amalgamation
- Turn Xed enums into defines to avoid DWARF bloat
- Improve polyfilling of SA_SIGINFO on BSDs and fix bugs
- setpgid(getpid(), getpid()) on Windows will ignore CTRL-C
- Work around issues relating to NT mappings being executable
- Permit automatic executable stack override via `ape_stack_pf`
This commit is contained in:
Justine Tunney 2022-04-12 22:11:00 -07:00
parent c95c9d9508
commit f684e348d4
76 changed files with 1844 additions and 1121 deletions
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5
libc/runtime/memtrack.internal.h
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@ -38,6 +38,8 @@ struct MemoryInterval {
int flags;
long offset;
long size;
bool iscow;
bool readonlyfile;
};
struct MemoryIntervals {
@ -50,12 +52,11 @@ extern hidden struct MemoryIntervals _mmi;
const char *DescribeFrame(int);
void PrintSystemMappings(int) hidden;
char *DescribeProt(int, char[hasatleast 4]);
char *DescribeMapping(int, int, char[hasatleast 8]) hidden;
bool AreMemoryIntervalsOk(const struct MemoryIntervals *) nosideeffect hidden;
void PrintMemoryIntervals(int, const struct MemoryIntervals *) hidden;
int TrackMemoryInterval(struct MemoryIntervals *, int, int, long, int, int,
long, long) hidden;
bool, bool, long, long) hidden;
int ReleaseMemoryIntervals(struct MemoryIntervals *, int, int,
void (*)(struct MemoryIntervals *, int, int)) hidden;
void ReleaseMemoryNt(struct MemoryIntervals *, int, int) hidden;