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cosmopolitan/libc/runtime/ftrace-hook.S

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Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
Initial import
2020-06-15 14:18:57 +00:00
╞══════════════════════════════════════════════════════════════════════════════╡
Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
Initial import
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│ │
Change license
2020-12-28 01:18:44 +00:00
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
Initial import
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│ │
Change license
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
Initial import
2020-06-15 14:18:57 +00:00
╚─────────────────────────────────────────────────────────────────────────────*/
Remove more nonstandard stuff from cosmopolitan.h Fixes #61
2021-03-01 07:42:35 +00:00
#include "libc/macros.internal.h"
Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
.privileged
Initial import
2020-06-15 14:18:57 +00:00
Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
ftrace_hook:
Get LIBC_RUNTIME and LIBC_CALLS building on aarch64
2023-05-09 08:56:56 +00:00
#ifdef __x86_64__
Make some systemic improvements - add vdso dump utility - tests now log stack usage - rename g_ftrace to __ftrace - make internal spinlocks go faster - add conformant c11 atomics library - function tracing now logs stack usage - make function call tracing thread safe - add -X unsecure (no ssl) mode to redbean - munmap() has more consistent behavior now - pacify fsync() calls on python unit tests - make --strace flag work better in redbean - start minimizing and documenting compiler flags
2022-05-18 23:41:29 +00:00
cmp $0,__ftrace(%rip)
Introduce --strace flag for system call tracing This is similar to the --ftrace (c function call trace) flag, except it's less noisy since it only logs system calls to stderr. Having this flag is valuable because (1) system call tracing tells us a lot about the behavior of complex programs and (2) it's usually very hard to get system call tracing on various operating systems, e.g. strace, ktrace, dtruss, truss, nttrace, etc. Especially on Apple platforms where even with the special boot trick, debuggers still aren't guaranteed to work. make -j8 o//examples o//examples/hello.com --strace This is enabled by default in MODE=, MODE=opt, and MODE=dbg. In MODE=dbg extra information will be printed. make -j8 MODE=dbg o/dbg/examples o/dbg/examples/hello.com --strace |& less This change also changes: - Rename IsText() → _istext() - Rename IsUtf8() → _isutf8() - Fix madvise() on Windows NT - Fix empty string case of inet_ntop() - vfork() wrapper now saves and restores errno - Update xsigaction() to yoink syscall support
2022-03-19 01:07:28 +00:00
jg 1f
Make SSL handshakes much faster This change boosts SSL handshake performance from 2,627 to ~10,000 per second which is the same level of performance as NGINX at establishing secure connections. That's impressive if we consider that redbean is a forking frontend application server. This was accomplished by: 1. Enabling either SSL session caching or SSL tickets. We choose to use tickets since they reduce network round trips too and that's a more important metric than wrk'ing localhost. 2. Fixing mbedtls_mpi_sub_abs() which is the most frequently called function. It's called about 12,000 times during an SSL handshake since it's the basis of most arithmetic operations like addition and for some strange reason it was designed to make two needless copies in addition to calling malloc and free. That's now fixed. 3. Improving TLS output buffering during the SSL handshake only, so that only a single is write and read system call is needed until blocking on the ping pong. redbean will now do a better job wiping sensitive memory from a child process as soon as it's not needed. The nice thing about fork is it's much faster than reverse proxying so the goal is to use the different address spaces along with setuid() to minimize the risk that a server key will be compromised in the event that application code is hacked.
2021-07-12 06:17:47 +00:00
ret
1: push %rbp
Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
mov %rsp,%rbp
and $-16,%rsp
sub $0x80,%rsp
movaps %xmm0,0x00(%rsp)
movaps %xmm1,0x10(%rsp)
movaps %xmm2,0x20(%rsp)
movaps %xmm3,0x30(%rsp)
movaps %xmm4,0x40(%rsp)
movaps %xmm5,0x50(%rsp)
movaps %xmm6,0x60(%rsp)
movaps %xmm7,0x70(%rsp)
push %rax
push %rax
push %rdi
push %rsi
push %rdx
push %rcx
push %r8
push %r9
push %r10
push %r11
Make SSL handshakes much faster This change boosts SSL handshake performance from 2,627 to ~10,000 per second which is the same level of performance as NGINX at establishing secure connections. That's impressive if we consider that redbean is a forking frontend application server. This was accomplished by: 1. Enabling either SSL session caching or SSL tickets. We choose to use tickets since they reduce network round trips too and that's a more important metric than wrk'ing localhost. 2. Fixing mbedtls_mpi_sub_abs() which is the most frequently called function. It's called about 12,000 times during an SSL handshake since it's the basis of most arithmetic operations like addition and for some strange reason it was designed to make two needless copies in addition to calling malloc and free. That's now fixed. 3. Improving TLS output buffering during the SSL handshake only, so that only a single is write and read system call is needed until blocking on the ping pong. redbean will now do a better job wiping sensitive memory from a child process as soon as it's not needed. The nice thing about fork is it's much faster than reverse proxying so the goal is to use the different address spaces along with setuid() to minimize the risk that a server key will be compromised in the event that application code is hacked.
2021-07-12 06:17:47 +00:00
call ftracer
Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
pop %r11
pop %r10
pop %r9
pop %r8
pop %rcx
pop %rdx
pop %rsi
pop %rdi
pop %rax
pop %rax
movaps 0x00(%rsp),%xmm0
movaps 0x10(%rsp),%xmm1
movaps 0x20(%rsp),%xmm2
movaps 0x30(%rsp),%xmm3
movaps 0x40(%rsp),%xmm4
movaps 0x50(%rsp),%xmm5
movaps 0x60(%rsp),%xmm6
movaps 0x70(%rsp),%xmm7
leave
Get LIBC_RUNTIME and LIBC_CALLS building on aarch64
2023-05-09 08:56:56 +00:00
#elif defined(__aarch64__)
stp x0,x1,[sp,#-16]!
stp x2,x3,[sp,#-16]!
stp x4,x5,[sp,#-16]!
stp x6,x7,[sp,#-16]!
stp x8,x9,[sp,#-16]!
stp x10,x11,[sp,#-16]!
stp x12,x13,[sp,#-16]!
stp x14,x15,[sp,#-16]!
stp x16,x17,[sp,#-16]!
stp x18,x19,[sp,#-16]!
stp x20,x21,[sp,#-16]!
stp x22,x23,[sp,#-16]!
stp x24,x25,[sp,#-16]!
stp x26,x27,[sp,#-16]!
stp x28,x29,[sp,#-16]!
str x30,[sp,#-16]!
bl ftracer
ldr x30,[sp,#16]!
ldp x28,x29,[sp,#16]!
ldp x26,x27,[sp,#16]!
ldp x24,x25,[sp,#16]!
ldp x22,x23,[sp,#16]!
ldp x20,x21,[sp,#16]!
ldp x18,x19,[sp,#16]!
ldp x16,x17,[sp,#16]!
ldp x14,x15,[sp,#16]!
ldp x12,x13,[sp,#16]!
ldp x10,x11,[sp,#16]!
ldp x8,x9,[sp,#16]!
ldp x6,x7,[sp,#16]!
ldp x4,x5,[sp,#16]!
ldp x2,x3,[sp,#16]!
ldp x0,x1,[sp,#16]!
#endif /* __x86_64__ */
Get codebase completely working with LLVM You can now build Cosmopolitan with Clang: make -j8 MODE=llvm o/llvm/examples/hello.com The assembler and linker code is now friendly to LLVM too. So it's not needed to configure Clang to use binutils under the hood. If you love LLVM then you can now use pure LLVM.
2021-02-08 17:19:00 +00:00
ret
.endfn ftrace_hook,globl
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