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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.
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/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│ vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi │
Initial import
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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.
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
Initial import
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│ │
Change license
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│ 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
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╚─────────────────────────────────────────────────────────────────────────────*/
Remove more nonstandard stuff from cosmopolitan.h Fixes #61
2021-02-28 23:42:35 -08:00
#include "libc/macros.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 09:19:00 -08:00
.privileged
Initial import
2020-06-15 07:18:57 -07:00
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 09:19:00 -08:00
ftrace_hook:
Get LIBC_RUNTIME and LIBC_CALLS building on aarch64
2023-05-09 01:56:56 -07:00
#ifdef __x86_64__
Remove some legacy cruft Function trace logs will report stack usage accurately. It won't include the argv/environ block. Our clone() polyfill is now simpler and does not use as much stack memory. Function call tracing on x86 is now faster too
2025-01-02 18:44:07 -08:00
// save argument registers
// we save %rax because __gc() takes it as an argument.
// we save %r10 because it's used as a syscall argument.
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
Make improvements - Fix unused local variable errors - Remove yoinks from sigaction() header - Add nox87 and aarch64 to github actions - Fix cosmocc -fportcosmo in linking mode - It's now possible to build `make m=llvm o/llvm/libc`
2023-07-10 04:29:46 -07:00
cmpl $0,__ftrace(%rip)
Remove superfluous RET instructions
2023-06-06 19:46:56 -07:00
jle 1f
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 09:19:00 -08:00
mov %rsp,%rbp
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
and $-16,%rsp
Remove some legacy cruft Function trace logs will report stack usage accurately. It won't include the argv/environ block. Our clone() polyfill is now simpler and does not use as much stack memory. Function call tracing on x86 is now faster too
2025-01-02 18:44:07 -08:00
sub $128,%rsp
movdqu %xmm0,-0x80(%rbp)
movdqu %xmm1,-0x70(%rbp)
movdqu %xmm2,-0x60(%rbp)
movdqu %xmm3,-0x50(%rbp)
movdqu %xmm4,-0x40(%rbp)
movdqu %xmm5,-0x30(%rbp)
movdqu %xmm6,-0x20(%rbp)
movdqu %xmm7,-0x10(%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 09:19:00 -08:00
push %rax
Fix alignment of ftrace hook
2023-07-09 16:52:08 -07:00
push %rcx
push %rdx
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 09:19:00 -08:00
push %rdi
push %rsi
push %r8
push %r9
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
push %r10
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.
2021-07-11 23:17:47 -07:00
call ftracer
Remove some legacy cruft Function trace logs will report stack usage accurately. It won't include the argv/environ block. Our clone() polyfill is now simpler and does not use as much stack memory. Function call tracing on x86 is now faster too
2025-01-02 18:44:07 -08:00
movdqu -0x80(%rbp),%xmm0
movdqu -0x70(%rbp),%xmm1
movdqu -0x60(%rbp),%xmm2
movdqu -0x50(%rbp),%xmm3
movdqu -0x40(%rbp),%xmm4
movdqu -0x30(%rbp),%xmm5
movdqu -0x20(%rbp),%xmm6
movdqu -0x10(%rbp),%xmm7
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
pop %r10
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 09:19:00 -08:00
pop %r9
pop %r8
pop %rsi
pop %rdi
Fix alignment of ftrace hook
2023-07-09 16:52:08 -07:00
pop %rdx
pop %rcx
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 09:19:00 -08:00
pop %rax
Have function tracer save all registers
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leave
Remove superfluous RET instructions
2023-06-06 19:46:56 -07:00
1: ret
Get LIBC_RUNTIME and LIBC_CALLS building on aarch64
2023-05-09 01:56:56 -07:00
#elif defined(__aarch64__)
Make fixes and improvements - Fix handling of precision in hex float formatting - Enhance the cocmd interpreter for system() and popen() - Manually ran the Lua unit tests, which are now passing - Let stdio i/o operations happen when file is in error state - We're now saving and restoring xmm in ftrace out of paranoia
2023-07-09 05:11:25 -07:00
stp x29,x30,[sp,-384]!
Get --ftrace working on aarch64 This change implements a new approach to function call logging, that's based on the GCC flag: -fpatchable-function-entry. Read the commentary in build/config.mk to learn how it works.
2023-06-05 23:35:31 -07:00
mov x29,sp
stp x0,x1,[sp,16]
Make improvements - You can now run `make -j8 toolchain` on Windows - You can now run `make -j` on MacOS ARM64 and BSD OSes - You can now use our Emacs dev environment on MacOS/Windows - Fix bug where the x16 register was being corrupted by --ftrace - The programs under build/bootstrap/ are updated as fat binaries - The Makefile now explains how to download cosmocc-0.0.12 toolchain - The build scripts under bin/ now support "cosmo" branded toolchains - stat() now goes faster on Windows (shaves 100ms off `make` latency) - Code cleanup and added review on the Windows signal checking code - posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs - Landlock Make now favors posix_spawn() on non-Linux/OpenBSD - posix_spawn() now has better --strace logging on Windows - fstatat() can now avoid EACCES in more cases on Windows - fchmod() can now change the readonly bit on Windows
2023-10-14 20:57:15 -07:00
adrp x0,__ftrace
ldr w0,[x0,#:lo12:__ftrace]
cmp w0,0
ble 1f
Get --ftrace working on aarch64 This change implements a new approach to function call logging, that's based on the GCC flag: -fpatchable-function-entry. Read the commentary in build/config.mk to learn how it works.
2023-06-05 23:35:31 -07:00
stp x2,x3,[sp,32]
stp x4,x5,[sp,48]
stp x6,x7,[sp,64]
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
stp x8,x9,[sp,80]
stp x10,x11,[sp,96]
stp x12,x13,[sp,112]
stp x14,x15,[sp,128]
Make improvements - You can now run `make -j8 toolchain` on Windows - You can now run `make -j` on MacOS ARM64 and BSD OSes - You can now use our Emacs dev environment on MacOS/Windows - Fix bug where the x16 register was being corrupted by --ftrace - The programs under build/bootstrap/ are updated as fat binaries - The Makefile now explains how to download cosmocc-0.0.12 toolchain - The build scripts under bin/ now support "cosmo" branded toolchains - stat() now goes faster on Windows (shaves 100ms off `make` latency) - Code cleanup and added review on the Windows signal checking code - posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs - Landlock Make now favors posix_spawn() on non-Linux/OpenBSD - posix_spawn() now has better --strace logging on Windows - fstatat() can now avoid EACCES in more cases on Windows - fchmod() can now change the readonly bit on Windows
2023-10-14 20:57:15 -07:00
stp x16,x19,[sp,160]
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
stp x20,x21,[sp,176]
stp x22,x23,[sp,192]
stp x24,x25,[sp,208]
stp x26,x27,[sp,224]
Make improvements - You can now run `make -j8 toolchain` on Windows - You can now run `make -j` on MacOS ARM64 and BSD OSes - You can now use our Emacs dev environment on MacOS/Windows - Fix bug where the x16 register was being corrupted by --ftrace - The programs under build/bootstrap/ are updated as fat binaries - The Makefile now explains how to download cosmocc-0.0.12 toolchain - The build scripts under bin/ now support "cosmo" branded toolchains - stat() now goes faster on Windows (shaves 100ms off `make` latency) - Code cleanup and added review on the Windows signal checking code - posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs - Landlock Make now favors posix_spawn() on non-Linux/OpenBSD - posix_spawn() now has better --strace logging on Windows - fstatat() can now avoid EACCES in more cases on Windows - fchmod() can now change the readonly bit on Windows
2023-10-14 20:57:15 -07:00
stp x17,x28,[sp,240]
Make fixes and improvements - Fix handling of precision in hex float formatting - Enhance the cocmd interpreter for system() and popen() - Manually ran the Lua unit tests, which are now passing - Let stdio i/o operations happen when file is in error state - We're now saving and restoring xmm in ftrace out of paranoia
2023-07-09 05:11:25 -07:00
stp q0,q1,[sp,256]
stp q2,q3,[sp,288]
stp q4,q5,[sp,320]
stp q6,q7,[sp,352]
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
Get LIBC_RUNTIME and LIBC_CALLS building on aarch64
2023-05-09 01:56:56 -07:00
bl ftracer
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
Make fixes and improvements - Fix handling of precision in hex float formatting - Enhance the cocmd interpreter for system() and popen() - Manually ran the Lua unit tests, which are now passing - Let stdio i/o operations happen when file is in error state - We're now saving and restoring xmm in ftrace out of paranoia
2023-07-09 05:11:25 -07:00
ldp q6,q7,[sp,352]
Make improvements - You can now run `make -j8 toolchain` on Windows - You can now run `make -j` on MacOS ARM64 and BSD OSes - You can now use our Emacs dev environment on MacOS/Windows - Fix bug where the x16 register was being corrupted by --ftrace - The programs under build/bootstrap/ are updated as fat binaries - The Makefile now explains how to download cosmocc-0.0.12 toolchain - The build scripts under bin/ now support "cosmo" branded toolchains - stat() now goes faster on Windows (shaves 100ms off `make` latency) - Code cleanup and added review on the Windows signal checking code - posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs - Landlock Make now favors posix_spawn() on non-Linux/OpenBSD - posix_spawn() now has better --strace logging on Windows - fstatat() can now avoid EACCES in more cases on Windows - fchmod() can now change the readonly bit on Windows
2023-10-14 20:57:15 -07:00
ldp q4,q5,[sp,320]
ldp q2,q3,[sp,288]
ldp q0,q1,[sp,256]
ldp x17,x28,[sp,240]
ldp x26,x27,[sp,224]
ldp x24,x25,[sp,208]
ldp x22,x23,[sp,192]
ldp x20,x21,[sp,176]
ldp x16,x19,[sp,160]
ldp x14,x15,[sp,128]
ldp x12,x13,[sp,112]
ldp x10,x11,[sp,96]
ldp x8,x9,[sp,80]
ldp x6,x7,[sp,64]
ldp x4,x5,[sp,48]
ldp x2,x3,[sp,32]
Have function tracer save all registers
2023-07-08 12:04:44 -07:00
Make improvements - You can now run `make -j8 toolchain` on Windows - You can now run `make -j` on MacOS ARM64 and BSD OSes - You can now use our Emacs dev environment on MacOS/Windows - Fix bug where the x16 register was being corrupted by --ftrace - The programs under build/bootstrap/ are updated as fat binaries - The Makefile now explains how to download cosmocc-0.0.12 toolchain - The build scripts under bin/ now support "cosmo" branded toolchains - stat() now goes faster on Windows (shaves 100ms off `make` latency) - Code cleanup and added review on the Windows signal checking code - posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs - Landlock Make now favors posix_spawn() on non-Linux/OpenBSD - posix_spawn() now has better --strace logging on Windows - fstatat() can now avoid EACCES in more cases on Windows - fchmod() can now change the readonly bit on Windows
2023-10-14 20:57:15 -07:00
1: ldp x0,x1,[sp,16]
Make fixes and improvements - Fix handling of precision in hex float formatting - Enhance the cocmd interpreter for system() and popen() - Manually ran the Lua unit tests, which are now passing - Let stdio i/o operations happen when file is in error state - We're now saving and restoring xmm in ftrace out of paranoia
2023-07-09 05:11:25 -07:00
ldp x29,x30,[sp],384
Make improvements - You can now run `make -j8 toolchain` on Windows - You can now run `make -j` on MacOS ARM64 and BSD OSes - You can now use our Emacs dev environment on MacOS/Windows - Fix bug where the x16 register was being corrupted by --ftrace - The programs under build/bootstrap/ are updated as fat binaries - The Makefile now explains how to download cosmocc-0.0.12 toolchain - The build scripts under bin/ now support "cosmo" branded toolchains - stat() now goes faster on Windows (shaves 100ms off `make` latency) - Code cleanup and added review on the Windows signal checking code - posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs - Landlock Make now favors posix_spawn() on non-Linux/OpenBSD - posix_spawn() now has better --strace logging on Windows - fstatat() can now avoid EACCES in more cases on Windows - fchmod() can now change the readonly bit on Windows
2023-10-14 20:57:15 -07:00
ret
Get LIBC_RUNTIME and LIBC_CALLS building on aarch64
2023-05-09 01:56:56 -07:00
#endif /* __x86_64__ */
Incorporate more small improvements
2023-07-23 10:57:18 -07:00
.endfn ftrace_hook,globl,hidden
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