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Add live reindexing to redbean when zip changes

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This commit is contained in:
Justine Tunney 2021-05-02 11:50:43 -07:00
parent 84001a246c
commit daa32d27d4
2 changed files with 68 additions and 31 deletions
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8
libc/runtime/openexecutable.S
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@ -40,9 +40,7 @@ OpenExecutable:
pushq MAP_ANONYMOUS(%rip) # -0x28(%rbp)
pushq MAP_PRIVATE(%rip) # -0x30(%rbp)
pushq MAP_FIXED(%rip) # -0x38(%rbp)
pushq MAP_SHARED(%rip) # -0x40(%rbp)
pushq __NR_mprotect(%rip) # -0x48(%rbp)
pushq __NR_mprotect(%rip) # -0x50(%rbp)
pushq __NR_mprotect(%rip) # -0x40(%rbp)
push %rbx # code buffer
push %r12 # data buffer
push %r14 # filename
@ -98,7 +96,7 @@ OpenExecutable:
rep movsb
// Change protection.
mov -0x48(%rbp),%eax # __NR_mprotect
mov -0x40(%rbp),%eax # __NR_mprotect
mov %rbx,%rdi
mov $PAGESIZE,%esi
mov $PROT_READ|PROT_EXEC,%edx
@ -133,7 +131,7 @@ OpenExecutable:
mov $ape_rom_filesz,%esi
mov $PROT_READ|PROT_EXEC,%edx
mov -0x38(%rbp),%r10d # MAP_FIXED
or -0x40(%rbp),%r10d # MAP_SHARED
or -0x30(%rbp),%r10d # MAP_PRIVATE
mov %r15d,%r8d
mov $ape_rom_offset,%r9d
push %r9 # openbsd:pad