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Add support for MADV_GUARD_{INSTALL,REMOVE}. #3999

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Merged
khuey merged 1 commit into from
Aug 1, 2025
Merged

Add support for MADV_GUARD_{INSTALL,REMOVE}. #3999

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6 changes: 6 additions & 0 deletions src/kernel_supplement.h
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Original file line number Diff line number Diff line change
Expand Up @@ -281,6 +281,12 @@ struct rr_input_mask {
#ifndef MADV_COLLAPSE
#define MADV_COLLAPSE 25
#endif
#ifndef MADV_GUARD_INSTALL
#define MADV_GUARD_INSTALL 102
#endif
#ifndef MADV_GUARD_REMOVE
#define MADV_GUARD_REMOVE 103
#endif

#ifndef BUS_MCEERR_AR
#define BUS_MCEERR_AR 4
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4 changes: 4 additions & 0 deletions src/record_syscall.cc
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Expand Up @@ -5245,6 +5245,10 @@ static Switchable rec_prepare_syscall_arch(RecordTask* t,
t->set_regs(r);
break;
}
case MADV_GUARD_INSTALL:
case MADV_GUARD_REMOVE:
syscall_state.emulate_result(-EINVAL);
break;
default:
syscall_state.expect_errno = EINVAL;
break;
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2 changes: 2 additions & 0 deletions src/test/madvise_misc.c
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Expand Up @@ -29,6 +29,8 @@ int main(void) {
DO_MADVISE(MADV_POPULATE_READ);
DO_MADVISE(MADV_POPULATE_WRITE);
DO_MADVISE(MADV_COLLAPSE);
DO_MADVISE(MADV_GUARD_INSTALL);
DO_MADVISE(MADV_GUARD_REMOVE);

atomic_puts("EXIT-SUCCESS");

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6 changes: 6 additions & 0 deletions src/test/util.h
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Expand Up @@ -497,6 +497,12 @@ struct open_how {
#ifndef MADV_COLLAPSE
#define MADV_COLLAPSE 25
#endif
#ifndef MADV_GUARD_INSTALL
#define MADV_GUARD_INSTALL 102
#endif
#ifndef MADV_GUARD_REMOVE
#define MADV_GUARD_REMOVE 103
#endif

#ifndef F_OFD_GETLK
#define F_OFD_GETLK 36
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