Fixup and polish chibicc some more

Fixes #433
This commit is contained in:
Justine Tunney 2022-06-20 04:32:25 -07:00
parent a988896048
commit f317a47cd8
15 changed files with 315 additions and 253 deletions

View file

@ -285,7 +285,7 @@ static void CouldNotAllocateRegister(AsmOperand *op, const char *kind) {
static void PickAsmRegisters(Asm *a) {
int i, j, m, pick, regset, xmmset, x87sts;
regset = 0b1111111111000111; // exclude bx,sp,bp
regset = 0b1111111111001111; // exclude bx,sp,bp
xmmset = 0b1111111111111111;
x87sts = 0b0000000011111111;
regset ^= regset & a->regclob; // don't allocate from clobber list

View file

@ -1,6 +1,7 @@
#include "libc/calls/calls.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/ucontext.h"
#include "libc/intrin/kprintf.h"
#include "libc/runtime/gc.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/x/x.h"
@ -264,9 +265,9 @@ static void parse_args(int argc, char **argv) {
} else if (!strncmp(argv[i], "-x", 2)) {
opt_x = parse_opt_x(argv[i] + 2);
} else if (startswith(argv[i], "-Wa")) {
strarray_push_comma(&as_extra_args, argv[i]);
strarray_push_comma(&as_extra_args, argv[i] + 3);
} else if (startswith(argv[i], "-Wl")) {
strarray_push_comma(&ld_extra_args, argv[i]);
strarray_push_comma(&ld_extra_args, argv[i] + 3);
} else if (!strcmp(argv[i], "-Xassembler")) {
strarray_push(&as_extra_args, argv[++i]);
} else if (!strcmp(argv[i], "-Xlinker")) {
@ -447,8 +448,7 @@ static bool run_subprocess(char **argv) {
_Exit(1);
}
// Wait for the child process to finish.
do
rc = wait(&ws);
do rc = wait(&ws);
while (rc == -1 && errno == EINTR);
return WIFEXITED(ws) && WEXITSTATUS(ws) == 0;
}
@ -657,27 +657,28 @@ static void run_linker(StringArray *inputs, char *output) {
if (!ld || !*ld) ld = "ld";
StringArray arr = {0};
strarray_push(&arr, ld);
strarray_push(&arr, "-o");
strarray_push(&arr, output);
strarray_push(&arr, "-m");
strarray_push(&arr, "elf_x86_64");
strarray_push(&arr, "-z");
strarray_push(&arr, "max-page-size=0x1000");
strarray_push(&arr, "-static");
strarray_push(&arr, "-nostdlib");
strarray_push(&arr, "--gc-sections");
strarray_push(&arr, "--build-id=none");
strarray_push(&arr, "--no-dynamic-linker");
strarray_push(&arr, xasprintf("-Ttext-segment=%#x", IMAGE_BASE_VIRTUAL));
strarray_push(&arr, "-T");
strarray_push(&arr, LDS);
strarray_push(&arr, APE);
strarray_push(&arr, CRT);
/* strarray_push(&arr, "-T"); */
/* strarray_push(&arr, LDS); */
/* strarray_push(&arr, APE); */
/* strarray_push(&arr, CRT); */
for (int i = 0; i < ld_extra_args.len; i++) {
strarray_push(&arr, ld_extra_args.data[i]);
}
for (int i = 0; i < inputs->len; i++) {
strarray_push(&arr, inputs->data[i]);
}
strarray_push(&arr, "-o");
strarray_push(&arr, output);
handle_exit(run_subprocess(arr.data));
}

52
third_party/xed/x86.h vendored
View file

@ -202,31 +202,33 @@ struct XedDecodedInst {
struct XedOperands op;
};
forceinline void xed_operands_set_mode(struct XedOperands *p, int mmode) {
p->realmode = false;
switch (mmode) {
default:
case XED_MACHINE_MODE_LONG_64:
p->mode = XED_MODE_LONG;
return;
case XED_MACHINE_MODE_LEGACY_32:
case XED_MACHINE_MODE_LONG_COMPAT_32:
p->mode = XED_MODE_LEGACY;
break;
case XED_MACHINE_MODE_REAL:
p->realmode = true;
p->mode = XED_MODE_REAL;
break;
case XED_MACHINE_MODE_UNREAL:
p->realmode = true;
p->mode = XED_MODE_LEGACY;
break;
case XED_MACHINE_MODE_LEGACY_16:
case XED_MACHINE_MODE_LONG_COMPAT_16:
p->mode = XED_MODE_REAL;
break;
}
}
#define xed_operands_set_mode(p, machine_mode) \
do { \
struct XedOperands *__p = p; \
__p->realmode = false; \
switch (machine_mode) { \
default: \
case XED_MACHINE_MODE_LONG_64: \
__p->mode = XED_MODE_LONG; \
break; \
case XED_MACHINE_MODE_LEGACY_32: \
case XED_MACHINE_MODE_LONG_COMPAT_32: \
__p->mode = XED_MODE_LEGACY; \
break; \
case XED_MACHINE_MODE_REAL: \
__p->realmode = true; \
__p->mode = XED_MODE_REAL; \
break; \
case XED_MACHINE_MODE_UNREAL: \
__p->realmode = true; \
__p->mode = XED_MODE_LEGACY; \
break; \
case XED_MACHINE_MODE_LEGACY_16: \
case XED_MACHINE_MODE_LONG_COMPAT_16: \
__p->mode = XED_MODE_REAL; \
break; \
} \
} while (0)
extern const char kXedErrorNames[];
extern const uint8_t kXedEamode[2][3];

View file

@ -211,42 +211,44 @@ struct XedChipFeatures {
uint64_t f[3];
};
forceinline void xed_set_chip_modes(struct XedDecodedInst *d, int chip) {
switch (chip) {
case XED_CHIP_INVALID:
break;
case XED_CHIP_I86:
case XED_CHIP_I86FP:
case XED_CHIP_I186:
case XED_CHIP_I186FP:
case XED_CHIP_I286REAL:
case XED_CHIP_I286:
case XED_CHIP_I2186FP:
case XED_CHIP_I386REAL:
case XED_CHIP_I386:
case XED_CHIP_I386FP:
case XED_CHIP_I486REAL:
case XED_CHIP_I486:
case XED_CHIP_QUARK:
case XED_CHIP_PENTIUM:
case XED_CHIP_PENTIUMREAL:
case XED_CHIP_PENTIUMMMX:
case XED_CHIP_PENTIUMMMXREAL:
d->op.mode_first_prefix = 1;
break;
default:
break;
}
switch (chip) {
case XED_CHIP_INVALID:
case XED_CHIP_ALL:
case XED_CHIP_AMD:
break;
default:
d->op.is_intel_specific = 1;
break;
}
}
#define xed_set_chip_modes(d, chip) \
do { \
struct XedDecodedInst *__d = d; \
switch (chip) { \
case XED_CHIP_INVALID: \
break; \
case XED_CHIP_I86: \
case XED_CHIP_I86FP: \
case XED_CHIP_I186: \
case XED_CHIP_I186FP: \
case XED_CHIP_I286REAL: \
case XED_CHIP_I286: \
case XED_CHIP_I2186FP: \
case XED_CHIP_I386REAL: \
case XED_CHIP_I386: \
case XED_CHIP_I386FP: \
case XED_CHIP_I486REAL: \
case XED_CHIP_I486: \
case XED_CHIP_QUARK: \
case XED_CHIP_PENTIUM: \
case XED_CHIP_PENTIUMREAL: \
case XED_CHIP_PENTIUMMMX: \
case XED_CHIP_PENTIUMMMXREAL: \
__d->op.mode_first_prefix = 1; \
break; \
default: \
break; \
} \
switch (chip) { \
case XED_CHIP_INVALID: \
case XED_CHIP_ALL: \
case XED_CHIP_AMD: \
break; \
default: \
__d->op.is_intel_specific = 1; \
break; \
} \
} while (0)
extern const uint64_t kXedChipFeatures[XED_CHIP_LAST][3];