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Make progress towards aarch64 build
This commit is contained in:
Justine Tunney
parent
08ff26c817
commit
ca2860947f
15428 changed files with 25694 additions and 23138 deletions
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@ -13,20 +13,20 @@
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#define TRUE 1
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#define FALSE 0
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#define IS2POW(X) (!((X) & ((X)-1)))
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#define ROUNDUP(X, K) (((X) + (K)-1) & -(K))
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#define ROUNDDOWN(X, K) ((X) & -(K))
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#define IS2POW(X) (!((X) & ((X)-1)))
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#define ROUNDUP(X, K) (((X) + (K)-1) & -(K))
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#define ROUNDDOWN(X, K) ((X) & -(K))
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#ifndef __ASSEMBLER__
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#define ABS(X) ((X) >= 0 ? (X) : -(X))
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#define MIN(X, Y) ((Y) > (X) ? (X) : (Y))
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#define MAX(X, Y) ((Y) < (X) ? (X) : (Y))
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#define ABS(X) ((X) >= 0 ? (X) : -(X))
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#define MIN(X, Y) ((Y) > (X) ? (X) : (Y))
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#define MAX(X, Y) ((Y) < (X) ? (X) : (Y))
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#else
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// The GNU assembler does not grok the ?: ternary operator; furthermore,
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// boolean expressions yield -1 and 0 for "true" and "false", not 1 and 0.
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#define __MAPBOOL(P) (!!(P) / (!!(P) + !(P)))
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#define __IFELSE(P, X, Y) (__MAPBOOL(P) * (X) + __MAPBOOL(!(P)) * (Y))
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#define MIN(X, Y) (__IFELSE((Y) > (X), (X), (Y)))
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#define MAX(X, Y) (__IFELSE((Y) < (X), (X), (Y)))
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#define __MAPBOOL(P) (!!(P) / (!!(P) + !(P)))
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#define __IFELSE(P, X, Y) (__MAPBOOL(P) * (X) + __MAPBOOL(!(P)) * (Y))
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#define MIN(X, Y) (__IFELSE((Y) > (X), (X), (Y)))
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#define MAX(X, Y) (__IFELSE((Y) < (X), (X), (Y)))
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#endif
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#define PASTE(A, B) __PASTE(A, B)
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#define STRINGIFY(A) __STRINGIFY(A)
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@ -43,9 +43,31 @@
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#ifdef __ASSEMBLER__
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// clang-format off
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#if __MNO_VZEROUPPER__ + 0
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#define vzeroupper
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#endif
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// Ends function definition.
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// @cost saves 1-3 lines of code
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.macro .endfn name:req bnd vis
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.size "\name",.-"\name"
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.type "\name",@function
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.ifnb \bnd
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.\bnd "\name"
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.endif
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.ifnb \vis
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.\vis "\name"
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.endif
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.endm
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// Ends variable definition.
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// @cost saves 1-3 lines of code
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.macro .endobj name:req bnd vis
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.size "\name",.-"\name"
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.type "\name",@object
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.ifnb \bnd
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.\bnd "\name"
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.endif
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.ifnb \vis
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.\vis "\name"
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.endif
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.endm
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// Shorthand notation for widely-acknowledged sections.
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.macro .rodata
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@ -77,7 +99,7 @@
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.endm
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.macro .text.modernity
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.section .text.modernity,"ax",@progbits
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.align 16
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.balign 16
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.endm
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.macro .text.antiquity
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.section .text.antiquity,"ax",@progbits
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@ -95,6 +117,51 @@
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.section .text.windows,"ax",@progbits
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.endm
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// Mergeable NUL-terminated UTF-8 string constant section.
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//
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// @note linker de-dupes C strings here across whole compile
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// @note therefore item/values are reordered w.r.t. link order
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// @note therefore no section relative addressing
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.macro .rodata.str1.1
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.section .rodata.str1.1,"aMS",@progbits,1
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.align 1
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.endm
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// Locates unreferenced code invulnerable to --gc-sections.
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.macro .keep.text
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.section .keep.text,"ax",@progbits
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.endm
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// Flags code as only allowed for testing purposes.
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.macro .testonly
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.section .test,"ax",@progbits
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.endm
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// Makes code runnable while code morphing.
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.macro .privileged
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.section .privileged,"ax",@progbits
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.endm
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// Pulls unrelated module into linkage.
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//
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// In order for this technique to work with --gc-sections, another
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// module somewhere might want to weakly reference whats yoinked.
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.macro .yoink symbol:req
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.section .yoink
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#ifdef __x86_64__
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nopl "\symbol"(%rip)
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#elif defined(__aarch64__)
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b "\symbol"
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#endif
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.previous
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.endm
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#ifdef __x86_64__
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#if __MNO_VZEROUPPER__ + 0
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#define vzeroupper
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#endif
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// Mergeable numeric constant sections.
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//
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// @note linker de-dupes item/values across whole compile
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@ -129,31 +196,6 @@
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.align 4
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.endm
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// Mergeable NUL-terminated UTF-8 string constant section.
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//
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// @note linker de-dupes C strings here across whole compile
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// @note therefore item/values are reordered w.r.t. link order
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// @note therefore no section relative addressing
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.macro .rodata.str1.1
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.section .rodata.str1.1,"aMS",@progbits,1
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.align 1
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.endm
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// Locates unreferenced code invulnerable to --gc-sections.
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.macro .keep.text
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.section .keep.text,"ax",@progbits
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.endm
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// Flags code as only allowed for testing purposes.
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.macro .testonly
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.section .test,"ax",@progbits
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.endm
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// Makes code runnable while code morphing.
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.macro .privileged
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.section .privileged,"ax",@progbits
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.endm
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// Loads address of errno into %rcx
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.macro .errno
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call __errno_location
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@ -197,32 +239,6 @@
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.weak \canonical
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.endm
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// Ends function definition.
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// @cost saves 1-3 lines of code
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.macro .endfn name:req bnd vis
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.size "\name",.-"\name"
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.type "\name",@function
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.ifnb \bnd
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.\bnd "\name"
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.endif
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.ifnb \vis
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.\vis "\name"
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.endif
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.endm
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// Ends variable definition.
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// @cost saves 1-3 lines of code
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.macro .endobj name:req bnd vis
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.size "\name",.-"\name"
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.type "\name",@object
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.ifnb \bnd
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.\bnd "\name"
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.endif
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.ifnb \vis
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.\vis "\name"
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.endif
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.endm
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// LOOP Instruction Replacement.
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.macro .loop label:req
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.byte 0x83
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@ -341,16 +357,6 @@
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.byte 0x0f,0x1f,0x40,0x00
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.endm
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// Pulls unrelated module into linkage.
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//
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// In order for this technique to work with --gc-sections, another
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// module somewhere might want to weakly reference whats yoinked.
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.macro .yoink symbol:req
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.section .yoink
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nopl "\symbol"(%rip)
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.previous
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.endm
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// Calls Windows function.
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//
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// @param cx,dx,r8,r9,stack
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@ -542,6 +548,14 @@
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#endif
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.endm
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#else
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.macro .underrun
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.endm
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.macro .overrun
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.endm
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// clang-format on
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#endif /* __x86_64__ */
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#endif /* __ASSEMBLER__ */
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#endif /* COSMOPOLITAN_LIBC_MACROS_H_ */
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