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Make improvements
- Emulator can now test the αcτµαlly pδrταblε εxεcµταblε bootloader - Whipped up a webserver named redbean. It services 150k requests per second on a single core. Bundling assets inside zip enables extremely fast serving for two reasons. The first is that zip central directory lookups go faster than stat() system calls. The second is that both zip and gzip content-encoding use DEFLATE, therefore, compressed responses can be served via the sendfile() system call which does an in-kernel copy directly from the zip executable structure. Also note that red bean zip executables can be deployed easily to all platforms, since these native executables work on Linux, Mac, BSD, and Windows. - Address sanitizer now works very well
This commit is contained in:
Justine Tunney
parent
7327c345f9
commit
416fd86676
230 changed files with 9835 additions and 5682 deletions
157
third_party/xed/x86.h
vendored
157
third_party/xed/x86.h
vendored
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@ -23,16 +23,9 @@
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#define XED_MODE_LEGACY 1
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#define XED_MODE_LONG 2
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#define XED_SEG_CS 1
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#define XED_SEG_DS 2
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#define XED_SEG_ES 3
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#define XED_SEG_FS 4
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#define XED_SEG_GS 5
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#define XED_SEG_SS 6
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#define XED_HINT_NTAKEN 1
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#define XED_HINT_TAKEN 2
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#define XED_HINT_ALTER 3
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#define XED_HINT_NTAKEN 2
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#define XED_HINT_TAKEN 4
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#define XED_HINT_ALTER 6
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#define xed_modrm_mod(M) (((M)&0xff) >> 6)
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#define xed_modrm_reg(M) (((M)&0b00111000) >> 3)
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@ -46,15 +39,14 @@
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COSMOPOLITAN_C_START_
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enum XedMachineMode {
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XED_MACHINE_MODE_INVALID,
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XED_MACHINE_MODE_LONG_64,
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XED_MACHINE_MODE_LONG_COMPAT_32,
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XED_MACHINE_MODE_LONG_COMPAT_16,
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XED_MACHINE_MODE_LEGACY_32,
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XED_MACHINE_MODE_LEGACY_16,
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XED_MACHINE_MODE_REAL,
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XED_MACHINE_MODE_UNREAL,
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XED_MACHINE_MODE_LAST
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XED_MACHINE_MODE_REAL = XED_MODE_REAL,
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XED_MACHINE_MODE_LEGACY_32 = XED_MODE_LEGACY,
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XED_MACHINE_MODE_LONG_64 = XED_MODE_LONG,
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XED_MACHINE_MODE_UNREAL = 1 << 2 | XED_MODE_REAL,
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XED_MACHINE_MODE_LEGACY_16 = 2 << 2 | XED_MODE_REAL,
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XED_MACHINE_MODE_LONG_COMPAT_16 = 3 << 2 | XED_MODE_REAL,
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XED_MACHINE_MODE_LONG_COMPAT_32 = 4 << 2 | XED_MODE_LEGACY,
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XED_MACHINE_MODE_LAST,
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};
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enum XedError {
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@ -319,54 +311,40 @@ struct XedChipFeatures {
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};
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struct XedOperands { /*
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┌rep
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│ ┌log₂𝑏
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│ │ ┌rexx
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│ │ │┌index
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│ │ ││ ┌mod
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│ │ ││ │ ┌rexb
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│ │ ││ │ │┌base
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│ │ ││ │ ││ ┌asz
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│ │ ││ │ ││ │┌rex REGISTER
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│ │ ││ │ ││ ││┌rexb DISPATCH
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│ │ ││ │ ││ │││┌srm ENCODING
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│ │ ││ │ ││ ││││ ┌rexw
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│ │ ││ │ ││ ││││ │┌rex
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│ │ ││ │ ││ ││││ ││┌rexb
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│ │ ││ │ ││ ││││ │││┌rm
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│ │ ││ │ ││ ││││ ││││ ┌osz
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│ │ ││ │ ││ ││││ ││││ │┌rex
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│ │ ││ │ ││ ││││ ││││ ││┌rexr
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│ │ ││ │ ││ ││││ ││││ │││┌reg
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│ │2││ │2││ ││││ ││││ ││││
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│ │8││24│2││18││││12││││ 6││││ 0
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├┐├┐│├─┐├┐│├─┐│││├─┐│││├─┐│││├─┐
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0b00000000000000000000000000000000*/
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┌rep
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│ ┌log₂𝑏
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│ │ ┌mode
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│ │ │ ┌eamode
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│ │ │ │ ┌mod
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│ │ │ │ │
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│ │ │ │ │ ┌sego
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│ │ │ │ │ │
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│ │ │ │ │ │ ┌rex REGISTER
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│ │ │ │ │ │ │┌rexb DISPATCH
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│ │ │ │ │ │ ││┌srm ENCODING
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│ │ │ │ │ │ │││ ┌rex
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│ │ │ │ │ │ │││ │┌rexb
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│ │ │ │ │ │ │││ ││┌rm
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│ │ │ │ │ │ │││ │││ ┌rexw
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│ │ │ │ │ │ │││ │││ │┌osz
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│ │ │ │ │ │ │││ │││ ││┌rex
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│ │ │ │ │ │ │││ │││ │││┌rexr
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│ │ │ │ │ │ │││ │││ ││││┌reg
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│3│2│2│2│2 │ │││ │││ │││││
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│0│8│6│4│2 │18 │││12│││ 7│││││ 0
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├┐├┐├┐├┐├┐ ├─┐ ││├─┐││├─┐││││├─┐
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00000000000000000000000000000000*/
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uint32_t rde;
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bool rexw : 1; // rex.w or rex.wb or etc. 64-bit override
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bool rexb : 1; // rex.b or rex.wb or etc. see modrm table
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bool rexr : 1; // rex.r or rex.wr or etc. see modrm table
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bool rex : 1; // any rex prefix including rex
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bool rexx : 1; // rex.x or rex.wx or etc. see sib table
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bool rexrr : 1; // evex
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bool asz : 1; // address size override
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bool osz : 1; // operand size override prefix
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bool out_of_bytes : 1;
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bool is_intel_specific : 1;
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bool ild_f2 : 1;
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bool ild_f3 : 1;
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bool has_modrm : 1;
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bool has_sib : 1;
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bool realmode : 1;
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bool amd3dnow : 1;
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uint8_t max_bytes;
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union {
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uint8_t opcode;
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uint8_t srm : 3;
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struct {
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union {
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uint8_t opcode;
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uint8_t srm : 3;
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};
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uint8_t map : 4; // enum XedIldMap
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};
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uint16_t dispatch;
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};
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uint8_t map : 4; // enum XedIldMap
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uint8_t rep : 2; // 0, 2 (0xf2 repnz), 3 (0xf3 rep/repe)
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uint8_t hint : 2; // static branch prediction
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union {
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uint8_t sib;
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struct {
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@ -375,6 +353,24 @@ struct XedOperands { /*
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uint8_t scale : 2;
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};
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};
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bool osz : 1; // operand size override prefix
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bool rexw : 1; // rex.w or rex.wb or etc. 64-bit override
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bool rexb : 1; // rex.b or rex.wb or etc. see modrm table
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bool rexr : 1; // rex.r or rex.wr or etc. see modrm table
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bool rex : 1; // any rex prefix including rex
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bool rexx : 1; // rex.x or rex.wx or etc. see sib table
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bool rexrr : 1; // evex
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bool asz : 1; // address size override
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int64_t disp; // displacement(%xxx) sign-extended
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uint64_t uimm0; // $immediate sign-extended
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bool out_of_bytes : 1;
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bool is_intel_specific : 1;
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bool ild_f2 : 1;
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bool ild_f3 : 1;
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bool has_sib : 1;
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bool realmode : 1;
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bool amd3dnow : 1;
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bool lock : 1;
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union {
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uint8_t modrm; // selects address register
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struct {
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@ -383,17 +379,17 @@ struct XedOperands { /*
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uint8_t mod : 2;
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};
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};
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uint8_t max_bytes;
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uint8_t rep : 2; // 0, 2 (0xf2 repnz), 3 (0xf3 rep/repe)
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uint8_t has_modrm : 2;
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bool imm_signed : 1; // internal
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uint8_t seg_ovd : 3; // XED_SEG_xx
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uint8_t error : 5; // enum XedError
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uint8_t mode : 3; // real,legacy,long
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bool lock : 1; // prefix
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bool imm_signed : 1; // internal
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int64_t disp; // displacement(%xxx) sign-extended
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uint64_t uimm0; // $immediate sign-extended
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uint8_t mode : 2; // real,legacy,long
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uint8_t hint : 3; // static branch prediction
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uint8_t uimm1; // enter $x,$y
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uint8_t disp_width; // in bits
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uint8_t imm_width; // in bits
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uint8_t ild_seg; // internal see seg_ovd
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uint8_t mode_first_prefix; // see xed_set_chip_modes()
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uint8_t nrexes;
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uint8_t nprefixes;
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@ -419,36 +415,35 @@ struct XedOperands { /*
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};
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struct XedDecodedInst {
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struct XedOperands op;
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uint8_t bytes[16];
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unsigned char length;
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} aligned(16);
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uint8_t bytes[15];
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struct XedOperands op;
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};
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forceinline void xed_operands_set_mode(struct XedOperands *p,
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enum XedMachineMode mmode) {
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p->realmode = false;
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switch (mmode) {
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default:
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case XED_MACHINE_MODE_LONG_64:
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p->mode = 2;
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p->mode = XED_MODE_LONG;
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return;
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case XED_MACHINE_MODE_LEGACY_32:
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case XED_MACHINE_MODE_LONG_COMPAT_32:
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p->mode = 1;
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p->mode = XED_MODE_LEGACY;
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break;
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case XED_MACHINE_MODE_REAL:
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p->realmode = true;
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p->mode = 0;
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p->mode = XED_MODE_REAL;
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break;
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case XED_MACHINE_MODE_UNREAL:
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p->realmode = 1;
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p->mode = 1;
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p->realmode = true;
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p->mode = XED_MODE_LEGACY;
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break;
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case XED_MACHINE_MODE_LEGACY_16:
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case XED_MACHINE_MODE_LONG_COMPAT_16:
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p->mode = 0;
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p->mode = XED_MODE_REAL;
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break;
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default:
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unreachable;
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}
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}
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