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| Unix Archive - Old | 1989-10-03 | 76.2 KB |
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This file was processed as: Unix Archive - Old
(archive/unixArchiveOld).
This format is not currently supported by dexvert.
| Confidence | Program | Detection | Match Type | Support
|
|---|
| 1%
| dexvert
| Unix Archive - Old (archive/unixArchiveOld)
| magic
| Unsupported |
| 1%
| dexvert
| System V 64-bit library (executable/systemV64BitLibrary)
| ext
| Unsupported |
| 1%
| dexvert
| COFF Library (other/coffLibrary)
| ext
| Unsupported |
| 100%
| file
| old 16-bit-int little-endian archive
| default
| |
| 99%
| file
| Microsoft x.out archive
| default (weak)
| |
| 98%
| file
| data
| default
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hex view+--------+-------------------------+-------------------------+--------+--------+
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|00001a70| 73 65 64 20 75 70 2e 20 | 20 4d 61 6e 69 70 75 6c |sed up. | Manipul|
|00001a80| 61 74 65 20 66 72 65 65 | 20 6c 69 73 74 2e 20 2a |ate free| list. *|
|00001a90| 2f 0a 09 09 64 65 6c 5f | 73 6c 6f 74 28 70 72 65 |/...del_|slot(pre|
|00001aa0| 76 5f 70 74 72 2c 20 68 | 70 29 3b 0a 09 09 72 65 |v_ptr, h|p);...re|
|00001ab0| 74 75 72 6e 28 6f 6c 64 | 5f 62 61 73 65 29 3b 0a |turn(old|_base);.|
|00001ac0| 09 7d 0a 0a 09 70 72 65 | 76 5f 70 74 72 20 3d 20 |.}...pre|v_ptr = |
|00001ad0| 68 70 3b 0a 09 68 70 20 | 3d 20 68 70 2d 3e 68 5f |hp;..hp |= hp->h_|
|00001ae0| 6e 65 78 74 3b 0a 20 20 | 7d 0a 20 20 72 65 74 75 |next;. |}. retu|
|00001af0| 72 6e 28 4e 4f 5f 4d 45 | 4d 29 3b 0a 7d 0a 0a 0a |rn(NO_ME|M);.}...|
|00001b00| 2f 2a 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |/*======|========|
|00001b10| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001b20| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001b30| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001b40| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 2a 0a 20 |========|=====*. |
|00001b50| 2a 09 09 09 09 66 72 65 | 65 5f 6d 65 6d 09 09 09 |*....fre|e_mem...|
|00001b60| 09 20 20 20 20 20 2a 0a | 20 2a 3d 3d 3d 3d 3d 3d |. *.| *======|
|00001b70| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001b80| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001b90| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001ba0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00001bb0| 3d 3d 3d 3d 3d 2a 2f 0a | 50 55 42 4c 49 43 20 66 |=====*/.|PUBLIC f|
|00001bc0| 72 65 65 5f 6d 65 6d 28 | 62 61 73 65 2c 20 63 6c |ree_mem(|base, cl|
|00001bd0| 69 63 6b 73 29 0a 70 68 | 79 73 5f 63 6c 69 63 6b |icks).ph|ys_click|
|00001be0| 73 20 62 61 73 65 3b 09 | 09 2f 2a 20 62 61 73 65 |s base;.|./* base|
|00001bf0| 20 61 64 64 72 65 73 73 | 20 6f 66 20 62 6c 6f 63 | address| of bloc|
|00001c00| 6b 20 74 6f 20 66 72 65 | 65 20 2a 2f 0a 70 68 79 |k to fre|e */.phy|
|00001c10| 73 5f 63 6c 69 63 6b 73 | 20 63 6c 69 63 6b 73 3b |s_clicks| clicks;|
|00001c20| 09 09 2f 2a 20 6e 75 6d | 62 65 72 20 6f 66 20 63 |../* num|ber of c|
|00001c30| 6c 69 63 6b 73 20 74 6f | 20 66 72 65 65 20 2a 2f |licks to| free */|
|00001c40| 0a 7b 0a 2f 2a 20 52 65 | 74 75 72 6e 20 61 20 62 |.{./* Re|turn a b|
|00001c50| 6c 6f 63 6b 20 6f 66 20 | 66 72 65 65 20 6d 65 6d |lock of |free mem|
|00001c60| 6f 72 79 20 74 6f 20 74 | 68 65 20 68 6f 6c 65 20 |ory to t|he hole |
|00001c70| 6c 69 73 74 2e 20 20 54 | 68 65 20 70 61 72 61 6d |list. T|he param|
|00001c80| 65 74 65 72 73 20 74 65 | 6c 6c 20 77 68 65 72 65 |eters te|ll where|
|00001c90| 0a 20 2a 20 74 68 65 20 | 62 6c 6f 63 6b 20 73 74 |. * the |block st|
|00001ca0| 61 72 74 73 20 69 6e 20 | 70 68 79 73 69 63 61 6c |arts in |physical|
|00001cb0| 20 6d 65 6d 6f 72 79 20 | 61 6e 64 20 68 6f 77 20 | memory |and how |
|00001cc0| 62 69 67 20 69 74 20 69 | 73 2e 20 20 54 68 65 20 |big it i|s. The |
|00001cd0| 62 6c 6f 63 6b 20 69 73 | 20 61 64 64 65 64 0a 20 |block is| added. |
|00001ce0| 2a 20 74 6f 20 74 68 65 | 20 68 6f 6c 65 20 6c 69 |* to the| hole li|
|00001cf0| 73 74 2e 20 20 49 66 20 | 69 74 20 69 73 20 63 6f |st. If |it is co|
|00001d00| 6e 74 69 67 75 6f 75 73 | 20 77 69 74 68 20 61 6e |ntiguous| with an|
|00001d10| 20 65 78 69 73 74 69 6e | 67 20 68 6f 6c 65 20 6f | existin|g hole o|
|00001d20| 6e 20 65 69 74 68 65 72 | 20 65 6e 64 2c 0a 20 2a |n either| end,. *|
|00001d30| 20 69 74 20 69 73 20 6d | 65 72 67 65 64 20 77 69 | it is m|erged wi|
|00001d40| 74 68 20 74 68 65 20 68 | 6f 6c 65 20 6f 72 20 68 |th the h|ole or h|
|00001d50| 6f 6c 65 73 2e 0a 20 2a | 2f 0a 0a 20 20 72 65 67 |oles.. *|/.. reg|
|00001d60| 69 73 74 65 72 20 73 74 | 72 75 63 74 20 68 6f 6c |ister st|ruct hol|
|00001d70| 65 20 2a 68 70 2c 20 2a | 6e 65 77 5f 70 74 72 2c |e *hp, *|new_ptr,|
|00001d80| 20 2a 70 72 65 76 5f 70 | 74 72 3b 0a 0a 20 20 69 | *prev_p|tr;.. i|
|00001d90| 66 20 28 20 28 6e 65 77 | 5f 70 74 72 20 3d 20 66 |f ( (new|_ptr = f|
|00001da0| 72 65 65 5f 73 6c 6f 74 | 73 29 20 3d 3d 20 4e 49 |ree_slot|s) == NI|
|00001db0| 4c 5f 48 4f 4c 45 29 20 | 70 61 6e 69 63 28 22 48 |L_HOLE) |panic("H|
|00001dc0| 6f 6c 65 20 74 61 62 6c | 65 20 66 75 6c 6c 22 2c |ole tabl|e full",|
|00001dd0| 20 4e 4f 5f 4e 55 4d 29 | 3b 0a 20 20 6e 65 77 5f | NO_NUM)|;. new_|
|00001de0| 70 74 72 2d 3e 68 5f 62 | 61 73 65 20 3d 20 62 61 |ptr->h_b|ase = ba|
|00001df0| 73 65 3b 0a 20 20 6e 65 | 77 5f 70 74 72 2d 3e 68 |se;. ne|w_ptr->h|
|00001e00| 5f 6c 65 6e 20 3d 20 63 | 6c 69 63 6b 73 3b 0a 20 |_len = c|licks;. |
|00001e10| 20 66 72 65 65 5f 73 6c | 6f 74 73 20 3d 20 6e 65 | free_sl|ots = ne|
|00001e20| 77 5f 70 74 72 2d 3e 68 | 5f 6e 65 78 74 3b 0a 20 |w_ptr->h|_next;. |
|00001e30| 20 68 70 20 3d 20 68 6f | 6c 65 5f 68 65 61 64 3b | hp = ho|le_head;|
|00001e40| 0a 0a 20 20 2f 2a 20 49 | 66 20 74 68 69 73 20 62 |.. /* I|f this b|
|00001e50| 6c 6f 63 6b 27 73 20 61 | 64 64 72 65 73 73 20 69 |lock's a|ddress i|
|00001e60| 73 20 6e 75 6d 65 72 69 | 63 61 6c 6c 79 20 6c 65 |s numeri|cally le|
|00001e70| 73 73 20 74 68 61 6e 20 | 74 68 65 20 6c 6f 77 65 |ss than |the lowe|
|00001e80| 73 74 20 68 6f 6c 65 20 | 63 75 72 72 65 6e 74 6c |st hole |currentl|
|00001e90| 79 0a 20 20 20 2a 20 61 | 76 61 69 6c 61 62 6c 65 |y. * a|vailable|
|00001ea0| 2c 20 6f 72 20 69 66 20 | 6e 6f 20 68 6f 6c 65 73 |, or if |no holes|
|00001eb0| 20 61 72 65 20 63 75 72 | 72 65 6e 74 6c 79 20 61 | are cur|rently a|
|00001ec0| 76 61 69 6c 61 62 6c 65 | 2c 20 70 75 74 20 74 68 |vailable|, put th|
|00001ed0| 69 73 20 68 6f 6c 65 20 | 6f 6e 20 74 68 65 0a 20 |is hole |on the. |
|00001ee0| 20 20 2a 20 66 72 6f 6e | 74 20 6f 66 20 74 68 65 | * fron|t of the|
|00001ef0| 20 68 6f 6c 65 20 6c 69 | 73 74 2e 0a 20 20 20 2a | hole li|st.. *|
|00001f00| 2f 0a 20 20 69 66 20 28 | 68 70 20 3d 3d 20 4e 49 |/. if (|hp == NI|
|00001f10| 4c 5f 48 4f 4c 45 20 7c | 7c 20 62 61 73 65 20 3c |L_HOLE ||| base <|
|00001f20| 3d 20 68 70 2d 3e 68 5f | 62 61 73 65 29 20 7b 0a |= hp->h_|base) {.|
|00001f30| 09 2f 2a 20 42 6c 6f 63 | 6b 20 74 6f 20 62 65 20 |./* Bloc|k to be |
|00001f40| 66 72 65 65 64 20 67 6f | 65 73 20 6f 6e 20 66 72 |freed go|es on fr|
|00001f50| 6f 6e 74 20 6f 66 20 74 | 68 65 20 68 6f 6c 65 20 |ont of t|he hole |
|00001f60| 6c 69 73 74 2e 20 2a 2f | 0a 09 6e 65 77 5f 70 74 |list. */|..new_pt|
|00001f70| 72 2d 3e 68 5f 6e 65 78 | 74 20 3d 20 68 70 3b 0a |r->h_nex|t = hp;.|
|00001f80| 09 68 6f 6c 65 5f 68 65 | 61 64 20 3d 20 6e 65 77 |.hole_he|ad = new|
|00001f90| 5f 70 74 72 3b 0a 09 6d | 65 72 67 65 28 6e 65 77 |_ptr;..m|erge(new|
|00001fa0| 5f 70 74 72 29 3b 0a 09 | 72 65 74 75 72 6e 3b 0a |_ptr);..|return;.|
|00001fb0| 20 20 7d 0a 0a 20 20 2f | 2a 20 42 6c 6f 63 6b 20 | }.. /|* Block |
|00001fc0| 74 6f 20 62 65 20 72 65 | 74 75 72 6e 65 64 20 64 |to be re|turned d|
|00001fd0| 6f 65 73 20 6e 6f 74 20 | 67 6f 20 6f 6e 20 66 72 |oes not |go on fr|
|00001fe0| 6f 6e 74 20 6f 66 20 68 | 6f 6c 65 20 6c 69 73 74 |ont of h|ole list|
|00001ff0| 2e 20 2a 2f 0a 20 20 77 | 68 69 6c 65 20 28 68 70 |. */. w|hile (hp|
|00002000| 20 21 3d 20 4e 49 4c 5f | 48 4f 4c 45 20 26 26 20 | != NIL_|HOLE && |
|00002010| 62 61 73 65 20 3e 20 68 | 70 2d 3e 68 5f 62 61 73 |base > h|p->h_bas|
|00002020| 65 29 20 7b 0a 09 70 72 | 65 76 5f 70 74 72 20 3d |e) {..pr|ev_ptr =|
|00002030| 20 68 70 3b 0a 09 68 70 | 20 3d 20 68 70 2d 3e 68 | hp;..hp| = hp->h|
|00002040| 5f 6e 65 78 74 3b 0a 20 | 20 7d 0a 0a 20 20 2f 2a |_next;. | }.. /*|
|00002050| 20 57 65 20 66 6f 75 6e | 64 20 77 68 65 72 65 20 | We foun|d where |
|00002060| 69 74 20 67 6f 65 73 2e | 20 20 49 6e 73 65 72 74 |it goes.| Insert|
|00002070| 20 62 6c 6f 63 6b 20 61 | 66 74 65 72 20 27 70 72 | block a|fter 'pr|
|00002080| 65 76 5f 70 74 72 27 2e | 20 2a 2f 0a 20 20 6e 65 |ev_ptr'.| */. ne|
|00002090| 77 5f 70 74 72 2d 3e 68 | 5f 6e 65 78 74 20 3d 20 |w_ptr->h|_next = |
|000020a0| 70 72 65 76 5f 70 74 72 | 2d 3e 68 5f 6e 65 78 74 |prev_ptr|->h_next|
|000020b0| 3b 0a 20 20 70 72 65 76 | 5f 70 74 72 2d 3e 68 5f |;. prev|_ptr->h_|
|000020c0| 6e 65 78 74 20 3d 20 6e | 65 77 5f 70 74 72 3b 0a |next = n|ew_ptr;.|
|000020d0| 20 20 6d 65 72 67 65 28 | 70 72 65 76 5f 70 74 72 | merge(|prev_ptr|
|000020e0| 29 3b 09 09 2f 2a 20 73 | 65 71 75 65 6e 63 65 20 |);../* s|equence |
|000020f0| 69 73 20 27 70 72 65 76 | 5f 70 74 72 27 2c 20 27 |is 'prev|_ptr', '|
|00002100| 6e 65 77 5f 70 74 72 27 | 2c 20 27 68 70 27 20 2a |new_ptr'|, 'hp' *|
|00002110| 2f 0a 7d 0a 0a 0a 2f 2a | 3d 3d 3d 3d 3d 3d 3d 3d |/.}.../*|========|
|00002120| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002130| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002140| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002150| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002160| 3d 3d 3d 2a 0a 20 2a 09 | 09 09 09 64 65 6c 5f 73 |===*. *.|...del_s|
|00002170| 6c 6f 74 09 09 09 09 20 | 20 20 20 20 2a 0a 20 2a |lot.... | *. *|
|00002180| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002190| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000021a0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000021b0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000021c0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 2a 2f 0a 50 52 |========|===*/.PR|
|000021d0| 49 56 41 54 45 20 64 65 | 6c 5f 73 6c 6f 74 28 70 |IVATE de|l_slot(p|
|000021e0| 72 65 76 5f 70 74 72 2c | 20 68 70 29 0a 72 65 67 |rev_ptr,| hp).reg|
|000021f0| 69 73 74 65 72 20 73 74 | 72 75 63 74 20 68 6f 6c |ister st|ruct hol|
|00002200| 65 20 2a 70 72 65 76 5f | 70 74 72 3b 09 2f 2a 20 |e *prev_|ptr;./* |
|00002210| 70 6f 69 6e 74 65 72 20 | 74 6f 20 68 6f 6c 65 20 |pointer |to hole |
|00002220| 65 6e 74 72 79 20 6a 75 | 73 74 20 61 68 65 61 64 |entry ju|st ahead|
|00002230| 20 6f 66 20 27 68 70 27 | 20 2a 2f 0a 72 65 67 69 | of 'hp'| */.regi|
|00002240| 73 74 65 72 20 73 74 72 | 75 63 74 20 68 6f 6c 65 |ster str|uct hole|
|00002250| 20 2a 68 70 3b 09 2f 2a | 20 70 6f 69 6e 74 65 72 | *hp;./*| pointer|
|00002260| 20 74 6f 20 68 6f 6c 65 | 20 65 6e 74 72 79 20 74 | to hole| entry t|
|00002270| 6f 20 62 65 20 72 65 6d | 6f 76 65 64 20 2a 2f 0a |o be rem|oved */.|
|00002280| 7b 0a 2f 2a 20 52 65 6d | 6f 76 65 20 61 6e 20 65 |{./* Rem|ove an e|
|00002290| 6e 74 72 79 20 66 72 6f | 6d 20 74 68 65 20 68 6f |ntry fro|m the ho|
|000022a0| 6c 65 20 6c 69 73 74 2e | 20 20 54 68 69 73 20 70 |le list.| This p|
|000022b0| 72 6f 63 65 64 75 72 65 | 20 69 73 20 63 61 6c 6c |rocedure| is call|
|000022c0| 65 64 20 77 68 65 6e 20 | 61 0a 20 2a 20 72 65 71 |ed when |a. * req|
|000022d0| 75 65 73 74 20 74 6f 20 | 61 6c 6c 6f 63 61 74 65 |uest to |allocate|
|000022e0| 20 6d 65 6d 6f 72 79 20 | 72 65 6d 6f 76 65 73 20 | memory |removes |
|000022f0| 61 20 68 6f 6c 65 20 69 | 6e 20 69 74 73 20 65 6e |a hole i|n its en|
|00002300| 74 69 72 65 74 79 2c 20 | 74 68 75 73 20 72 65 64 |tirety, |thus red|
|00002310| 75 63 69 6e 67 0a 20 2a | 20 74 68 65 20 6e 75 6d |ucing. *| the num|
|00002320| 62 65 72 73 20 6f 66 20 | 68 6f 6c 65 73 20 69 6e |bers of |holes in|
|00002330| 20 6d 65 6d 6f 72 79 2c | 20 61 6e 64 20 72 65 71 | memory,| and req|
|00002340| 75 69 72 69 6e 67 20 74 | 68 65 20 65 6c 69 6d 69 |uiring t|he elimi|
|00002350| 6e 61 74 69 6f 6e 20 6f | 66 20 6f 6e 65 0a 20 2a |nation o|f one. *|
|00002360| 20 65 6e 74 72 79 20 69 | 6e 20 74 68 65 20 68 6f | entry i|n the ho|
|00002370| 6c 65 20 6c 69 73 74 2e | 0a 20 2a 2f 0a 0a 20 20 |le list.|. */.. |
|00002380| 69 66 20 28 68 70 20 3d | 3d 20 68 6f 6c 65 5f 68 |if (hp =|= hole_h|
|00002390| 65 61 64 29 0a 09 68 6f | 6c 65 5f 68 65 61 64 20 |ead)..ho|le_head |
|000023a0| 3d 20 68 70 2d 3e 68 5f | 6e 65 78 74 3b 0a 20 20 |= hp->h_|next;. |
|000023b0| 65 6c 73 65 0a 09 70 72 | 65 76 5f 70 74 72 2d 3e |else..pr|ev_ptr->|
|000023c0| 68 5f 6e 65 78 74 20 3d | 20 68 70 2d 3e 68 5f 6e |h_next =| hp->h_n|
|000023d0| 65 78 74 3b 0a 0a 20 20 | 68 70 2d 3e 68 5f 6e 65 |ext;.. |hp->h_ne|
|000023e0| 78 74 20 3d 20 66 72 65 | 65 5f 73 6c 6f 74 73 3b |xt = fre|e_slots;|
|000023f0| 0a 20 20 66 72 65 65 5f | 73 6c 6f 74 73 20 3d 20 |. free_|slots = |
|00002400| 68 70 3b 0a 7d 0a 0a 0a | 2f 2a 3d 3d 3d 3d 3d 3d |hp;.}...|/*======|
|00002410| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002420| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002430| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002440| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002450| 3d 3d 3d 3d 3d 2a 0a 20 | 2a 09 09 09 09 6d 65 72 |=====*. |*....mer|
|00002460| 67 65 09 09 09 09 09 20 | 20 20 20 20 2a 0a 20 2a |ge..... | *. *|
|00002470| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002480| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00002490| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000024a0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000024b0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 2a 2f 0a 50 52 |========|===*/.PR|
|000024c0| 49 56 41 54 45 20 6d 65 | 72 67 65 28 68 70 29 0a |IVATE me|rge(hp).|
|000024d0| 72 65 67 69 73 74 65 72 | 20 73 74 72 75 63 74 20 |register| struct |
|000024e0| 68 6f 6c 65 20 2a 68 70 | 3b 09 2f 2a 20 70 74 72 |hole *hp|;./* ptr|
|000024f0| 20 74 6f 20 68 6f 6c 65 | 20 74 6f 20 6d 65 72 67 | to hole| to merg|
|00002500| 65 20 77 69 74 68 20 69 | 74 73 20 73 75 63 63 65 |e with i|ts succe|
|00002510| 73 73 6f 72 73 20 2a 2f | 0a 7b 0a 2f 2a 20 43 68 |ssors */|.{./* Ch|
|00002520| 65 63 6b 20 66 6f 72 20 | 63 6f 6e 74 69 67 75 6f |eck for |contiguo|
|00002530| 75 73 20 68 6f 6c 65 73 | 20 61 6e 64 20 6d 65 72 |us holes| and mer|
|00002540| 67 65 20 61 6e 79 20 66 | 6f 75 6e 64 2e 20 20 43 |ge any f|ound. C|
|00002550| 6f 6e 74 69 67 75 6f 75 | 73 20 68 6f 6c 65 73 20 |ontiguou|s holes |
|00002560| 63 61 6e 20 6f 63 63 75 | 72 0a 20 2a 20 77 68 65 |can occu|r. * whe|
|00002570| 6e 20 61 20 62 6c 6f 63 | 6b 20 6f 66 20 6d 65 6d |n a bloc|k of mem|
|00002580| 6f 72 79 20 69 73 20 66 | 72 65 65 64 2c 20 61 6e |ory is f|reed, an|
|00002590| 64 20 69 74 20 68 61 70 | 70 65 6e 73 20 74 6f 20 |d it hap|pens to |
|000025a0| 61 62 75 74 20 61 6e 6f | 74 68 65 72 20 68 6f 6c |abut ano|ther hol|
|000025b0| 65 20 6f 6e 0a 20 2a 20 | 65 69 74 68 65 72 20 6f |e on. * |either o|
|000025c0| 72 20 62 6f 74 68 20 65 | 6e 64 73 2e 20 20 54 68 |r both e|nds. Th|
|000025d0| 65 20 70 6f 69 6e 74 65 | 72 20 27 68 70 27 20 70 |e pointe|r 'hp' p|
|000025e0| 6f 69 6e 74 73 20 74 6f | 20 74 68 65 20 66 69 72 |oints to| the fir|
|000025f0| 73 74 20 6f 66 20 61 20 | 73 65 72 69 65 73 20 6f |st of a |series o|
|00002600| 66 0a 20 2a 20 74 68 72 | 65 65 20 68 6f 6c 65 73 |f. * thr|ee holes|
|00002610| 20 74 68 61 74 20 63 61 | 6e 20 70 6f 74 65 6e 74 | that ca|n potent|
|00002620| 69 61 6c 6c 79 20 61 6c | 6c 20 62 65 20 6d 65 72 |ially al|l be mer|
|00002630| 67 65 64 20 74 6f 67 65 | 74 68 65 72 2e 0a 20 2a |ged toge|ther.. *|
|00002640| 2f 0a 0a 20 20 72 65 67 | 69 73 74 65 72 20 73 74 |/.. reg|ister st|
|00002650| 72 75 63 74 20 68 6f 6c | 65 20 2a 6e 65 78 74 5f |ruct hol|e *next_|
|00002660| 70 74 72 3b 0a 0a 20 20 | 2f 2a 20 49 66 20 27 68 |ptr;.. |/* If 'h|
|00002670| 70 27 20 70 6f 69 6e 74 | 73 20 74 6f 20 74 68 65 |p' point|s to the|
|00002680| 20 6c 61 73 74 20 68 6f | 6c 65 2c 20 6e 6f 20 6d | last ho|le, no m|
|00002690| 65 72 67 69 6e 67 20 69 | 73 20 70 6f 73 73 69 62 |erging i|s possib|
|000026a0| 6c 65 2e 20 20 49 66 20 | 69 74 20 64 6f 65 73 20 |le. If |it does |
|000026b0| 6e 6f 74 2c 0a 20 20 20 | 2a 20 74 72 79 20 74 6f |not,. |* try to|
|000026c0| 20 61 62 73 6f 72 62 20 | 69 74 73 20 73 75 63 63 | absorb |its succ|
|000026d0| 65 73 73 6f 72 20 69 6e | 74 6f 20 69 74 20 61 6e |essor in|to it an|
|000026e0| 64 20 66 72 65 65 20 74 | 68 65 20 73 75 63 63 65 |d free t|he succe|
|000026f0| 73 73 6f 72 27 73 20 74 | 61 62 6c 65 20 65 6e 74 |ssor's t|able ent|
|00002700| 72 79 2e 0a 20 20 20 2a | 2f 0a 20 20 69 66 20 28 |ry.. *|/. if (|
|00002710| 20 28 6e 65 78 74 5f 70 | 74 72 20 3d 20 68 70 2d | (next_p|tr = hp-|
|00002720| 3e 68 5f 6e 65 78 74 29 | 20 3d 3d 20 4e 49 4c 5f |>h_next)| == NIL_|
|00002730| 48 4f 4c 45 29 20 72 65 | 74 75 72 6e 3b 0a 20 20 |HOLE) re|turn;. |
|00002740| 69 66 20 28 68 70 2d 3e | 68 5f 62 61 73 65 20 2b |if (hp->|h_base +|
|00002750| 20 68 70 2d 3e 68 5f 6c | 65 6e 20 3d 3d 20 6e 65 | hp->h_l|en == ne|
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|00003460| 20 20 20 20 20 20 32 09 | 2f 2a 20 66 6c 61 67 20 | 2.|/* flag |
|00003470| 76 61 6c 75 65 20 77 68 | 65 6e 20 73 74 61 63 6b |value wh|en stack|
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|00003490| 0a 0a 2f 2a 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |../*====|========|
|000034a0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000034b0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000034c0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000034d0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 2a |========|=======*|
|000034e0| 0a 20 2a 09 09 09 09 64 | 6f 5f 62 72 6b 20 20 09 |. *....d|o_brk .|
|000034f0| 09 09 09 20 20 20 20 20 | 2a 0a 20 2a 3d 3d 3d 3d |... |*. *====|
|00003500| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003510| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003520| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003530| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003540| 3d 3d 3d 3d 3d 3d 3d 2a | 2f 0a 50 55 42 4c 49 43 |=======*|/.PUBLIC|
|00003550| 20 69 6e 74 20 64 6f 5f | 62 72 6b 28 29 0a 7b 0a | int do_|brk().{.|
|00003560| 2f 2a 20 50 65 72 66 6f | 72 6d 20 74 68 65 20 62 |/* Perfo|rm the b|
|00003570| 72 6b 28 61 64 64 72 29 | 20 73 79 73 74 65 6d 20 |rk(addr)| system |
|00003580| 63 61 6c 6c 2e 0a 20 2a | 0a 20 2a 20 54 68 65 20 |call.. *|. * The |
|00003590| 63 61 6c 6c 20 69 73 20 | 63 6f 6d 70 6c 69 63 61 |call is |complica|
|000035a0| 74 65 64 20 62 79 20 74 | 68 65 20 66 61 63 74 20 |ted by t|he fact |
|000035b0| 74 68 61 74 20 6f 6e 20 | 73 6f 6d 65 20 6d 61 63 |that on |some mac|
|000035c0| 68 69 6e 65 73 20 28 65 | 2e 67 2e 2c 20 38 30 38 |hines (e|.g., 808|
|000035d0| 38 29 2c 0a 20 2a 20 74 | 68 65 20 73 74 61 63 6b |8),. * t|he stack|
|000035e0| 20 70 6f 69 6e 74 65 72 | 20 63 61 6e 20 67 72 6f | pointer| can gro|
|000035f0| 77 20 62 65 79 6f 6e 64 | 20 74 68 65 20 62 61 73 |w beyond| the bas|
|00003600| 65 20 6f 66 20 74 68 65 | 20 73 74 61 63 6b 20 73 |e of the| stack s|
|00003610| 65 67 6d 65 6e 74 20 77 | 69 74 68 6f 75 74 0a 20 |egment w|ithout. |
|00003620| 2a 20 61 6e 79 62 6f 64 | 79 20 6e 6f 74 69 63 69 |* anybod|y notici|
|00003630| 6e 67 20 69 74 2e 0a 20 | 2a 20 54 68 65 20 70 61 |ng it.. |* The pa|
|00003640| 72 61 6d 65 74 65 72 2c | 20 27 61 64 64 72 27 20 |rameter,| 'addr' |
|00003650| 69 73 20 74 68 65 20 6e | 65 77 20 76 69 72 74 75 |is the n|ew virtu|
|00003660| 61 6c 20 61 64 64 72 65 | 73 73 20 69 6e 20 44 20 |al addre|ss in D |
|00003670| 73 70 61 63 65 2e 0a 20 | 2a 2f 0a 0a 20 20 72 65 |space.. |*/.. re|
|00003680| 67 69 73 74 65 72 20 73 | 74 72 75 63 74 20 6d 70 |gister s|truct mp|
|00003690| 72 6f 63 20 2a 72 6d 70 | 3b 0a 20 20 69 6e 74 20 |roc *rmp|;. int |
|000036a0| 72 3b 0a 20 20 76 69 72 | 5f 62 79 74 65 73 20 76 |r;. vir|_bytes v|
|000036b0| 2c 20 6e 65 77 5f 73 70 | 3b 0a 20 20 76 69 72 5f |, new_sp|;. vir_|
|000036c0| 63 6c 69 63 6b 73 20 6e | 65 77 5f 63 6c 69 63 6b |clicks n|ew_click|
|000036d0| 73 3b 0a 0a 20 20 72 6d | 70 20 3d 20 6d 70 3b 0a |s;.. rm|p = mp;.|
|000036e0| 20 20 76 20 3d 20 28 76 | 69 72 5f 62 79 74 65 73 | v = (v|ir_bytes|
|000036f0| 29 20 61 64 64 72 3b 0a | 20 20 6e 65 77 5f 63 6c |) addr;.| new_cl|
|00003700| 69 63 6b 73 20 3d 20 28 | 76 69 72 5f 63 6c 69 63 |icks = (|vir_clic|
|00003710| 6b 73 29 20 28 20 28 28 | 6c 6f 6e 67 29 20 76 20 |ks) ( ((|long) v |
|00003720| 2b 20 43 4c 49 43 4b 5f | 53 49 5a 45 20 2d 20 31 |+ CLICK_|SIZE - 1|
|00003730| 29 20 3e 3e 20 43 4c 49 | 43 4b 5f 53 48 49 46 54 |) >> CLI|CK_SHIFT|
|00003740| 29 3b 0a 20 20 69 66 20 | 28 6e 65 77 5f 63 6c 69 |);. if |(new_cli|
|00003750| 63 6b 73 20 3c 20 72 6d | 70 2d 3e 6d 70 5f 73 65 |cks < rm|p->mp_se|
|00003760| 67 5b 44 5d 2e 6d 65 6d | 5f 76 69 72 29 20 7b 0a |g[D].mem|_vir) {.|
|00003770| 09 72 65 73 5f 70 74 72 | 20 3d 20 28 63 68 61 72 |.res_ptr| = (char|
|00003780| 20 2a 29 20 2d 31 3b 0a | 09 72 65 74 75 72 6e 28 | *) -1;.|.return(|
|00003790| 45 4e 4f 4d 45 4d 29 3b | 0a 20 20 7d 0a 20 20 6e |ENOMEM);|. }. n|
|000037a0| 65 77 5f 63 6c 69 63 6b | 73 20 2d 3d 20 72 6d 70 |ew_click|s -= rmp|
|000037b0| 2d 3e 6d 70 5f 73 65 67 | 5b 44 5d 2e 6d 65 6d 5f |->mp_seg|[D].mem_|
|000037c0| 76 69 72 3b 0a 20 20 73 | 79 73 5f 67 65 74 73 70 |vir;. s|ys_getsp|
|000037d0| 28 77 68 6f 2c 20 26 6e | 65 77 5f 73 70 29 3b 09 |(who, &n|ew_sp);.|
|000037e0| 2f 2a 20 61 73 6b 20 6b | 65 72 6e 65 6c 20 66 6f |/* ask k|ernel fo|
|000037f0| 72 20 63 75 72 72 65 6e | 74 20 73 70 20 76 61 6c |r curren|t sp val|
|00003800| 75 65 20 2a 2f 0a 20 20 | 72 20 3d 20 61 64 6a 75 |ue */. |r = adju|
|00003810| 73 74 28 72 6d 70 2c 20 | 6e 65 77 5f 63 6c 69 63 |st(rmp, |new_clic|
|00003820| 6b 73 2c 20 6e 65 77 5f | 73 70 29 3b 0a 20 20 72 |ks, new_|sp);. r|
|00003830| 65 73 5f 70 74 72 20 3d | 20 28 72 20 3d 3d 20 4f |es_ptr =| (r == O|
|00003840| 4b 20 3f 20 61 64 64 72 | 20 3a 20 28 63 68 61 72 |K ? addr| : (char|
|00003850| 20 2a 29 20 2d 31 29 3b | 0a 20 20 72 65 74 75 72 | *) -1);|. retur|
|00003860| 6e 28 72 29 3b 09 09 09 | 2f 2a 20 72 65 74 75 72 |n(r);...|/* retur|
|00003870| 6e 20 6e 65 77 20 61 64 | 64 72 65 73 73 20 6f 72 |n new ad|dress or|
|00003880| 20 2d 31 20 2a 2f 0a 7d | 0a 0a 0a 2f 2a 3d 3d 3d | -1 */.}|.../*===|
|00003890| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000038a0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000038b0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000038c0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000038d0| 3d 3d 3d 3d 3d 3d 3d 3d | 2a 0a 20 2a 09 09 09 09 |========|*. *....|
|000038e0| 61 64 6a 75 73 74 20 20 | 09 09 09 09 20 20 20 20 |adjust |.... |
|000038f0| 20 2a 0a 20 2a 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d | *. *===|========|
|00003900| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003910| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003920| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003930| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00003940| 2a 2f 0a 50 55 42 4c 49 | 43 20 69 6e 74 20 61 64 |*/.PUBLI|C int ad|
|00003950| 6a 75 73 74 28 72 6d 70 | 2c 20 64 61 74 61 5f 63 |just(rmp|, data_c|
|00003960| 6c 69 63 6b 73 2c 20 73 | 70 29 0a 72 65 67 69 73 |licks, s|p).regis|
|00003970| 74 65 72 20 73 74 72 75 | 63 74 20 6d 70 72 6f 63 |ter stru|ct mproc|
|00003980| 20 2a 72 6d 70 3b 09 2f | 2a 20 77 68 6f 73 65 20 | *rmp;./|* whose |
|00003990| 6d 65 6d 6f 72 79 20 69 | 73 20 62 65 69 6e 67 20 |memory i|s being |
|000039a0| 61 64 6a 75 73 74 65 64 | 3f 20 2a 2f 0a 76 69 72 |adjusted|? */.vir|
|000039b0| 5f 63 6c 69 63 6b 73 20 | 64 61 74 61 5f 63 6c 69 |_clicks |data_cli|
|000039c0| 63 6b 73 3b 09 09 2f 2a | 20 68 6f 77 20 62 69 67 |cks;../*| how big|
|000039d0| 20 69 73 20 64 61 74 61 | 20 73 65 67 6d 65 6e 74 | is data| segment|
|000039e0| 20 74 6f 20 62 65 63 6f | 6d 65 3f 20 2a 2f 0a 76 | to beco|me? */.v|
|000039f0| 69 72 5f 62 79 74 65 73 | 20 73 70 3b 09 09 09 2f |ir_bytes| sp;.../|
|00003a00| 2a 20 6e 65 77 20 76 61 | 6c 75 65 20 6f 66 20 73 |* new va|lue of s|
|00003a10| 70 20 2a 2f 0a 7b 0a 2f | 2a 20 53 65 65 20 69 66 |p */.{./|* See if|
|00003a20| 20 64 61 74 61 20 61 6e | 64 20 73 74 61 63 6b 20 | data an|d stack |
|00003a30| 73 65 67 6d 65 6e 74 73 | 20 63 61 6e 20 63 6f 65 |segments| can coe|
|00003a40| 78 69 73 74 2c 20 61 64 | 6a 75 73 74 69 6e 67 20 |xist, ad|justing |
|00003a50| 74 68 65 6d 20 69 66 20 | 6e 65 65 64 20 62 65 2e |them if |need be.|
|00003a60| 0a 20 2a 20 4d 65 6d 6f | 72 79 20 69 73 20 6e 65 |. * Memo|ry is ne|
|00003a70| 76 65 72 20 61 6c 6c 6f | 63 61 74 65 64 20 6f 72 |ver allo|cated or|
|00003a80| 20 66 72 65 65 64 2e 20 | 20 49 6e 73 74 65 61 64 | freed. | Instead|
|00003a90| 20 69 74 20 69 73 20 61 | 64 64 65 64 20 6f 72 20 | it is a|dded or |
|00003aa0| 72 65 6d 6f 76 65 64 20 | 66 72 6f 6d 20 74 68 65 |removed |from the|
|00003ab0| 0a 20 2a 20 67 61 70 20 | 62 65 74 77 65 65 6e 20 |. * gap |between |
|00003ac0| 64 61 74 61 20 73 65 67 | 6d 65 6e 74 20 61 6e 64 |data seg|ment and|
|00003ad0| 20 73 74 61 63 6b 20 73 | 65 67 6d 65 6e 74 2e 20 | stack s|egment. |
|00003ae0| 20 49 66 20 74 68 65 20 | 67 61 70 20 73 69 7a 65 | If the |gap size|
|00003af0| 20 62 65 63 6f 6d 65 73 | 0a 20 2a 20 6e 65 67 61 | becomes|. * nega|
|00003b00| 74 69 76 65 2c 20 74 68 | 65 20 61 64 6a 75 73 74 |tive, th|e adjust|
|00003b10| 6d 65 6e 74 20 6f 66 20 | 64 61 74 61 20 6f 72 20 |ment of |data or |
|00003b20| 73 74 61 63 6b 20 66 61 | 69 6c 73 20 61 6e 64 20 |stack fa|ils and |
|00003b30| 45 4e 4f 4d 45 4d 20 69 | 73 20 72 65 74 75 72 6e |ENOMEM i|s return|
|00003b40| 65 64 2e 0a 20 2a 2f 0a | 0a 20 20 72 65 67 69 73 |ed.. */.|. regis|
|00003b50| 74 65 72 20 73 74 72 75 | 63 74 20 6d 65 6d 5f 6d |ter stru|ct mem_m|
|00003b60| 61 70 20 2a 6d 65 6d 5f | 73 70 2c 20 2a 6d 65 6d |ap *mem_|sp, *mem|
|00003b70| 5f 64 70 3b 0a 20 20 76 | 69 72 5f 63 6c 69 63 6b |_dp;. v|ir_click|
|00003b80| 73 20 73 70 5f 63 6c 69 | 63 6b 2c 20 67 61 70 5f |s sp_cli|ck, gap_|
|00003b90| 62 61 73 65 2c 20 6c 6f | 77 65 72 2c 20 6f 6c 64 |base, lo|wer, old|
|00003ba0| 5f 63 6c 69 63 6b 73 3b | 0a 20 20 69 6e 74 20 63 |_clicks;|. int c|
|00003bb0| 68 61 6e 67 65 64 2c 20 | 72 2c 20 66 74 3b 0a 20 |hanged, |r, ft;. |
|00003bc0| 20 6c 6f 6e 67 20 62 61 | 73 65 5f 6f 66 5f 73 74 | long ba|se_of_st|
|00003bd0| 61 63 6b 2c 20 64 65 6c | 74 61 3b 09 2f 2a 20 6c |ack, del|ta;./* l|
|00003be0| 6f 6e 67 73 20 61 76 6f | 69 64 20 63 65 72 74 61 |ongs avo|id certa|
|00003bf0| 69 6e 20 70 72 6f 62 6c | 65 6d 73 20 2a 2f 0a 0a |in probl|ems */..|
|00003c00| 20 20 6d 65 6d 5f 64 70 | 20 3d 20 26 72 6d 70 2d | mem_dp| = &rmp-|
|00003c10| 3e 6d 70 5f 73 65 67 5b | 44 5d 3b 09 2f 2a 20 70 |>mp_seg[|D];./* p|
|00003c20| 6f 69 6e 74 65 72 20 74 | 6f 20 64 61 74 61 20 73 |ointer t|o data s|
|00003c30| 65 67 6d 65 6e 74 20 6d | 61 70 20 2a 2f 0a 20 20 |egment m|ap */. |
|00003c40| 6d 65 6d 5f 73 70 20 3d | 20 26 72 6d 70 2d 3e 6d |mem_sp =| &rmp->m|
|00003c50| 70 5f 73 65 67 5b 53 5d | 3b 09 2f 2a 20 70 6f 69 |p_seg[S]|;./* poi|
|00003c60| 6e 74 65 72 20 74 6f 20 | 73 74 61 63 6b 20 73 65 |nter to |stack se|
|00003c70| 67 6d 65 6e 74 20 6d 61 | 70 20 2a 2f 0a 20 20 63 |gment ma|p */. c|
|00003c80| 68 61 6e 67 65 64 20 3d | 20 30 3b 09 09 09 2f 2a |hanged =| 0;.../*|
|00003c90| 20 73 65 74 20 77 68 65 | 6e 20 65 69 74 68 65 72 | set whe|n either|
|00003ca0| 20 73 65 67 6d 65 6e 74 | 20 63 68 61 6e 67 65 64 | segment| changed|
|00003cb0| 20 2a 2f 0a 0a 20 20 2f | 2a 20 53 65 65 20 69 66 | */.. /|* See if|
|00003cc0| 20 73 74 61 63 6b 20 73 | 69 7a 65 20 68 61 73 20 | stack s|ize has |
|00003cd0| 67 6f 6e 65 20 6e 65 67 | 61 74 69 76 65 20 28 69 |gone neg|ative (i|
|00003ce0| 2e 65 2e 2c 20 73 70 20 | 74 6f 6f 20 63 6c 6f 73 |.e., sp |too clos|
|00003cf0| 65 20 74 6f 20 30 78 46 | 46 46 46 2e 2e 2e 29 20 |e to 0xF|FFF...) |
|00003d00| 2a 2f 0a 20 20 62 61 73 | 65 5f 6f 66 5f 73 74 61 |*/. bas|e_of_sta|
|00003d10| 63 6b 20 3d 20 28 6c 6f | 6e 67 29 20 6d 65 6d 5f |ck = (lo|ng) mem_|
|00003d20| 73 70 2d 3e 6d 65 6d 5f | 76 69 72 20 2b 20 28 6c |sp->mem_|vir + (l|
|00003d30| 6f 6e 67 29 20 6d 65 6d | 5f 73 70 2d 3e 6d 65 6d |ong) mem|_sp->mem|
|00003d40| 5f 6c 65 6e 3b 0a 20 20 | 73 70 5f 63 6c 69 63 6b |_len;. |sp_click|
|00003d50| 20 3d 20 73 70 20 3e 3e | 20 43 4c 49 43 4b 5f 53 | = sp >>| CLICK_S|
|00003d60| 48 49 46 54 3b 09 2f 2a | 20 63 6c 69 63 6b 20 63 |HIFT;./*| click c|
|00003d70| 6f 6e 74 61 69 6e 69 6e | 67 20 73 70 20 2a 2f 0a |ontainin|g sp */.|
|00003d80| 20 20 69 66 20 28 73 70 | 5f 63 6c 69 63 6b 20 3e | if (sp|_click >|
|00003d90| 3d 20 62 61 73 65 5f 6f | 66 5f 73 74 61 63 6b 29 |= base_o|f_stack)|
|00003da0| 20 72 65 74 75 72 6e 28 | 45 4e 4f 4d 45 4d 29 3b | return(|ENOMEM);|
|00003db0| 09 2f 2a 20 73 70 20 74 | 6f 6f 20 68 69 67 68 20 |./* sp t|oo high |
|00003dc0| 2a 2f 0a 0a 20 20 2f 2a | 20 43 6f 6d 70 75 74 65 |*/.. /*| Compute|
|00003dd0| 20 73 69 7a 65 20 6f 66 | 20 67 61 70 20 62 65 74 | size of| gap bet|
|00003de0| 77 65 65 6e 20 73 74 61 | 63 6b 20 61 6e 64 20 64 |ween sta|ck and d|
|00003df0| 61 74 61 20 73 65 67 6d | 65 6e 74 73 2e 20 2a 2f |ata segm|ents. */|
|00003e00| 0a 20 20 64 65 6c 74 61 | 20 3d 20 28 6c 6f 6e 67 |. delta| = (long|
|00003e10| 29 20 6d 65 6d 5f 73 70 | 2d 3e 6d 65 6d 5f 76 69 |) mem_sp|->mem_vi|
|00003e20| 72 20 2d 20 28 6c 6f 6e | 67 29 20 73 70 5f 63 6c |r - (lon|g) sp_cl|
|00003e30| 69 63 6b 3b 0a 20 20 6c | 6f 77 65 72 20 3d 20 28 |ick;. l|ower = (|
|00003e40| 64 65 6c 74 61 20 3e 20 | 30 20 3f 20 73 70 5f 63 |delta > |0 ? sp_c|
|00003e50| 6c 69 63 6b 20 3a 20 6d | 65 6d 5f 73 70 2d 3e 6d |lick : m|em_sp->m|
|00003e60| 65 6d 5f 76 69 72 29 3b | 0a 20 20 67 61 70 5f 62 |em_vir);|. gap_b|
|00003e70| 61 73 65 20 3d 20 6d 65 | 6d 5f 64 70 2d 3e 6d 65 |ase = me|m_dp->me|
|00003e80| 6d 5f 76 69 72 20 2b 20 | 64 61 74 61 5f 63 6c 69 |m_vir + |data_cli|
|00003e90| 63 6b 73 3b 0a 20 20 69 | 66 20 28 6c 6f 77 65 72 |cks;. i|f (lower|
|00003ea0| 20 3c 20 67 61 70 5f 62 | 61 73 65 29 20 72 65 74 | < gap_b|ase) ret|
|00003eb0| 75 72 6e 28 45 4e 4f 4d | 45 4d 29 3b 09 2f 2a 20 |urn(ENOM|EM);./* |
|00003ec0| 64 61 74 61 20 61 6e 64 | 20 73 74 61 63 6b 20 63 |data and| stack c|
|00003ed0| 6f 6c 6c 69 64 65 64 20 | 2a 2f 0a 0a 20 20 2f 2a |ollided |*/.. /*|
|00003ee0| 20 55 70 64 61 74 65 20 | 64 61 74 61 20 6c 65 6e | Update |data len|
|00003ef0| 67 74 68 20 28 62 75 74 | 20 6e 6f 74 20 64 61 74 |gth (but| not dat|
|00003f00| 61 20 6f 72 67 69 6e 29 | 20 6f 6e 20 62 65 68 61 |a orgin)| on beha|
|00003f10| 6c 66 20 6f 66 20 62 72 | 6b 28 29 20 73 79 73 74 |lf of br|k() syst|
|00003f20| 65 6d 20 63 61 6c 6c 2e | 20 2a 2f 0a 20 20 6f 6c |em call.| */. ol|
|00003f30| 64 5f 63 6c 69 63 6b 73 | 20 3d 20 6d 65 6d 5f 64 |d_clicks| = mem_d|
|00003f40| 70 2d 3e 6d 65 6d 5f 6c | 65 6e 3b 0a 20 20 69 66 |p->mem_l|en;. if|
|00003f50| 20 28 64 61 74 61 5f 63 | 6c 69 63 6b 73 20 21 3d | (data_c|licks !=|
|00003f60| 20 6d 65 6d 5f 64 70 2d | 3e 6d 65 6d 5f 6c 65 6e | mem_dp-|>mem_len|
|00003f70| 29 20 7b 0a 09 6d 65 6d | 5f 64 70 2d 3e 6d 65 6d |) {..mem|_dp->mem|
|00003f80| 5f 6c 65 6e 20 3d 20 64 | 61 74 61 5f 63 6c 69 63 |_len = d|ata_clic|
|00003f90| 6b 73 3b 0a 09 63 68 61 | 6e 67 65 64 20 7c 3d 20 |ks;..cha|nged |= |
|00003fa0| 44 41 54 41 5f 43 48 41 | 4e 47 45 44 3b 0a 20 20 |DATA_CHA|NGED;. |
|00003fb0| 7d 0a 0a 20 20 2f 2a 20 | 55 70 64 61 74 65 20 73 |}.. /* |Update s|
|00003fc0| 74 61 63 6b 20 6c 65 6e | 67 74 68 20 61 6e 64 20 |tack len|gth and |
|00003fd0| 6f 72 69 67 69 6e 20 64 | 75 65 20 74 6f 20 63 68 |origin d|ue to ch|
|00003fe0| 61 6e 67 65 20 69 6e 20 | 73 74 61 63 6b 20 70 6f |ange in |stack po|
|00003ff0| 69 6e 74 65 72 2e 20 2a | 2f 0a 20 20 69 66 20 28 |inter. *|/. if (|
|00004000| 64 65 6c 74 61 20 3e 20 | 30 29 20 7b 0a 09 6d 65 |delta > |0) {..me|
|00004010| 6d 5f 73 70 2d 3e 6d 65 | 6d 5f 76 69 72 20 2d 3d |m_sp->me|m_vir -=|
|00004020| 20 64 65 6c 74 61 3b 0a | 09 6d 65 6d 5f 73 70 2d | delta;.|.mem_sp-|
|00004030| 3e 6d 65 6d 5f 70 68 79 | 73 20 2d 3d 20 64 65 6c |>mem_phy|s -= del|
|00004040| 74 61 3b 0a 09 6d 65 6d | 5f 73 70 2d 3e 6d 65 6d |ta;..mem|_sp->mem|
|00004050| 5f 6c 65 6e 20 2b 3d 20 | 64 65 6c 74 61 3b 0a 09 |_len += |delta;..|
|00004060| 63 68 61 6e 67 65 64 20 | 7c 3d 20 53 54 41 43 4b |changed ||= STACK|
|00004070| 5f 43 48 41 4e 47 45 44 | 3b 0a 20 20 7d 0a 0a 20 |_CHANGED|;. }.. |
|00004080| 20 2f 2a 20 44 6f 20 74 | 68 65 20 6e 65 77 20 64 | /* Do t|he new d|
|00004090| 61 74 61 20 61 6e 64 20 | 73 74 61 63 6b 20 73 65 |ata and |stack se|
|000040a0| 67 6d 65 6e 74 20 73 69 | 7a 65 73 20 66 69 74 20 |gment si|zes fit |
|000040b0| 69 6e 20 74 68 65 20 61 | 64 64 72 65 73 73 20 73 |in the a|ddress s|
|000040c0| 70 61 63 65 3f 20 2a 2f | 0a 20 20 66 74 20 3d 20 |pace? */|. ft = |
|000040d0| 28 72 6d 70 2d 3e 6d 70 | 5f 66 6c 61 67 73 20 26 |(rmp->mp|_flags &|
|000040e0| 20 53 45 50 41 52 41 54 | 45 29 3b 0a 20 20 72 20 | SEPARAT|E);. r |
|000040f0| 3d 20 73 69 7a 65 5f 6f | 6b 28 66 74 2c 20 72 6d |= size_o|k(ft, rm|
|00004100| 70 2d 3e 6d 70 5f 73 65 | 67 5b 54 5d 2e 6d 65 6d |p->mp_se|g[T].mem|
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+--------+-------------------------+-------------------------+--------+--------+
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