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Create ELF aliases for identical symbols

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This change greatly reduces the number of modules that need to be
compiled. The only issue right now is that sometimes when viewing
symbol table entries, the aliased symbol is chosen.
This commit is contained in:
Justine Tunney 2023-06-06 03:30:37 -07:00
parent e1b83399bd
commit b8a6a989c0
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GPG key ID: BE714B4575D6E328
191 changed files with 414 additions and 2190 deletions
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15
libc/intrin/fenv.S
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@ -39,7 +39,9 @@
// - `FE_INEXACT`
// - `FE_ALL_EXCEPT` (all of the above)
// @return 0 on success, or nonzero on error
.ftrace1
feclearexcept:
.ftrace2
#ifdef __x86_64__
// maintain exceptions in the sse mxcsr, clear x87 exceptions
mov %edi,%ecx
@ -79,6 +81,7 @@ feclearexcept:
// volatile double x = 0, y = 1 / x;
// assert(fetestexcept(FE_ALL_EXCEPT) == FE_DIVBYZERO);
//
.ftrace1
// @param excepts may bitwise-or the following:
// - `FE_INVALID`
// - `FE_DIVBYZERO`
@ -88,7 +91,9 @@ feclearexcept:
// - `FE_ALL_EXCEPT` (all of the above)
// @return mask of which exception status codes are currently set,
// or zero if there aren't any floating point exceptions
.ftrace1
fetestexcept:
.ftrace2
#ifdef __x86_64__
and $0x3f,%edi
push %rax
@ -106,7 +111,9 @@ fetestexcept:
#endif
.endfn fetestexcept,globl
.ftrace1
feraiseexcept:
.ftrace2
#ifdef __x86_64__
and $0x3f,%edi
stmxcsr -8(%rsp)
@ -124,7 +131,9 @@ feraiseexcept:
#endif
.endfn feraiseexcept,globl
.ftrace1
__fesetround:
.ftrace2
#ifdef __x86_64__
push %rax
xor %eax,%eax
@ -150,7 +159,9 @@ __fesetround:
#endif
.endfn __fesetround,globl,hidden
.ftrace1
fegetround:
.ftrace2
#ifdef __x86_64__
push %rax
stmxcsr (%rsp)
@ -165,7 +176,9 @@ fegetround:
#endif
.endfn fegetround,globl
.ftrace1
fegetenv:
.ftrace2
#ifdef __x86_64__
xor %eax,%eax
fnstenv (%rdi)
@ -180,7 +193,9 @@ fegetenv:
#endif
.endfn fegetenv,globl
.ftrace1
fesetenv:
.ftrace2
#ifdef __x86_64__
xor %eax,%eax
inc %rdi