cosmopolitan/tool/build/lib/throw.c
Justine Tunney 39bf41f4eb Make numerous improvements
- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands
2021-09-28 01:52:34 -07:00

69 lines
3.4 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ 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. │
│ │
│ 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/log/check.h"
#include "libc/log/log.h"
#include "libc/nexgen32e/vendor.internal.h"
#include "libc/runtime/gc.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "tool/build/lib/address.h"
#include "tool/build/lib/endian.h"
#include "tool/build/lib/throw.h"
static bool IsHaltingInitialized(struct Machine *m) {
jmp_buf zb;
bzero(zb, sizeof(zb));
return memcmp(m->onhalt, zb, sizeof(m->onhalt)) != 0;
}
void HaltMachine(struct Machine *m, int code) {
CHECK(IsHaltingInitialized(m));
_gclongjmp(m->onhalt, code);
}
void ThrowDivideError(struct Machine *m) {
HaltMachine(m, kMachineDivideError);
}
void ThrowSegmentationFault(struct Machine *m, int64_t va) {
m->faultaddr = va;
if (m->xedd) m->ip -= m->xedd->length;
WARNF("%s%s ADDR %012lx IP %012lx AX %lx CX %lx DX %lx BX %lx SP %lx "
"BP %lx SI %lx DI %lx R8 %lx R9 %lx R10 %lx R11 %lx R12 %lx R13 %lx "
"R14 %lx R15 %lx",
"SEGMENTATION FAULT", IsGenuineCosmo() ? " SIMULATED" : "", va, m->ip,
Read64(m->ax), Read64(m->cx), Read64(m->dx), Read64(m->bx),
Read64(m->sp), Read64(m->bp), Read64(m->si), Read64(m->di),
Read64(m->r8), Read64(m->r9), Read64(m->r10), Read64(m->r11),
Read64(m->r12), Read64(m->r13), Read64(m->r14), Read64(m->r15));
HaltMachine(m, kMachineSegmentationFault);
}
void ThrowProtectionFault(struct Machine *m) {
HaltMachine(m, kMachineProtectionFault);
}
void OpUd(struct Machine *m, uint32_t rde) {
if (m->xedd) m->ip -= m->xedd->length;
HaltMachine(m, kMachineUndefinedInstruction);
}
void OpHlt(struct Machine *m, uint32_t rde) {
HaltMachine(m, kMachineHalt);
}