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January 2021

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[Git][cmucl/cmucl][master] 2 commits: Remove PAGE_WRITE_PROTECT_CLEARED and MASK.
by Raymond Toy 02 Jan '21

02 Jan '21

Raymond Toy pushed to branch master at cmucl / cmucl Commits: 51f730c2 by Raymond Toy at 2021-01-02T14:11:17-08:00 Remove PAGE_WRITE_PROTECT_CLEARED and MASK. This macro and mask is only used once to set the bit (near line 498). It's not read anywhere, so remove it. Addresses #89. - - - - - c60c50da by Raymond Toy at 2021-01-02T22:35:29+00:00 Merge branch 'issue-89-remove-page-write-protect-cleared' into 'master' Remove PAGE_WRITE_PROTECT_CLEARED and MASK. See merge request cmucl/cmucl!57 - - - - - 2 changed files: - src/lisp/gencgc.c - src/lisp/gencgc.h Changes: ===================================== src/lisp/gencgc.c ===================================== @@ -495,7 +495,6 @@ gc_write_barrier(void *addr) /* Un-protect the page */ os_protect((os_vm_address_t) page_address(page_index), GC_PAGE_SIZE, OS_VM_PROT_ALL); page_table[page_index].flags &= ~PAGE_WRITE_PROTECTED_MASK; - page_table[page_index].flags |= PAGE_WRITE_PROTECT_CLEARED_MASK; return 1; } ===================================== src/lisp/gencgc.h ===================================== @@ -45,16 +45,6 @@ int gc_write_barrier(void *); #define PAGE_WRITE_PROTECTED(page) \ (page_table[page].flags & PAGE_WRITE_PROTECTED_MASK) -/* - * This flag is set when the above write protect flag is clear by the - * sigbus handler. This is useful for re-scavenging pages that are - * written during a GC. - */ - -#define PAGE_WRITE_PROTECT_CLEARED_MASK 0x00000020 -#define PAGE_WRITE_PROTECT_CLEARED(page) \ - (page_table[page].flags & PAGE_WRITE_PROTECT_CLEARED_MASK) - /* * Page allocated flag: 0 for a free page; 1 when allocated. If * the page is free then the following slots are invalid - well View it on GitLab: https://gitlab.common-lisp.net/cmucl/cmucl/-/compare/d1b59ff32243a8243c55f1… -- View it on GitLab: https://gitlab.common-lisp.net/cmucl/cmucl/-/compare/d1b59ff32243a8243c55f1… You're receiving this email because of your account on gitlab.common-lisp.net.

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[Git][cmucl/cmucl] Pushed new branch issue-89-remove-page-write-protect-cleared
by Raymond Toy 02 Jan '21

02 Jan '21

Raymond Toy pushed new branch issue-89-remove-page-write-protect-cleared at cmucl / cmucl -- View it on GitLab: https://gitlab.common-lisp.net/cmucl/cmucl/-/tree/issue-89-remove-page-writ… You're receiving this email because of your account on gitlab.common-lisp.net.

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