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relocations

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Signed-off-by: lizzie <lizzie@eden-emu.dev>
This commit is contained in:
lizzie 2025-11-03 00:23:06 +00:00
parent abd7477350
commit 94f1c94fb8
4 changed files with 257 additions and 137 deletions
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184
externals/powah/tests.cpp vendored
View file

@ -2,16 +2,19 @@
// SPDX-License-Identifier: GPL-3.0-or-later
#include <catch2/catch_test_macros.hpp>
#include <sys/mman.h>
#include "powah_emit.hpp"
#define EB32(X) __bswap32(X)
TEST_CASE("ppc64: addi", "[ppc64]") {
std::vector<uint32_t> data(64);
powah::Context ctx(data.data(), data.size());
ctx.ADDI(powah::R2, powah::R2, 0);
ctx.ADDIS(powah::R2, powah::R12, 0);
REQUIRE(data[0] == 0x00004238);
REQUIRE(data[1] == 0x00004c3c);
REQUIRE(data[0] == EB32(0x00004238));
REQUIRE(data[1] == EB32(0x00004c3c));
}
TEST_CASE("ppc64: std/mr", "[ppc64]") {
@ -24,12 +27,12 @@ TEST_CASE("ppc64: std/mr", "[ppc64]") {
ctx.MR(powah::R30, powah::R3);
ctx.RLDICR(powah::R4, powah::R5, 25, 6);
ctx.STD(powah::R28, powah::R1, 160);
REQUIRE(data[0] == 0x900041fb);
REQUIRE(data[1] == 0x78239a7c);
REQUIRE(data[2] == 0xb000c1fb);
REQUIRE(data[3] == 0x781b7e7c);
REQUIRE(data[4] == 0x84c9a478);
REQUIRE(data[5] == 0xa00081fb);
REQUIRE(data[0] == EB32(0x900041fb));
REQUIRE(data[1] == EB32(0x78239a7c));
REQUIRE(data[2] == EB32(0xb000c1fb));
REQUIRE(data[3] == EB32(0x781b7e7c));
REQUIRE(data[4] == EB32(0x84c9a478));
REQUIRE(data[5] == EB32(0xa00081fb));
}
TEST_CASE("ppc64: sldi", "[ppc64]") {
@ -37,7 +40,7 @@ TEST_CASE("ppc64: sldi", "[ppc64]") {
powah::Context ctx(data.data(), data.size());
ctx.SLDI(powah::R3, powah::R5, 37);
REQUIRE(data[0] == 0x862ea378);
REQUIRE(data[0] == EB32(0x862ea378));
}
TEST_CASE("ppc64: rldicr", "[ppc64]") {
@ -48,11 +51,11 @@ TEST_CASE("ppc64: rldicr", "[ppc64]") {
ctx.RLDICR(powah::R1, powah::R1, 0, 1);
ctx.RLDICR(powah::R1, powah::R1, 1, 1);
ctx.RLDICR(powah::R1, powah::R1, 31, 31);
REQUIRE(data[0] == 0x04002178);
REQUIRE(data[1] == 0x04082178);
REQUIRE(data[2] == 0x44002178);
REQUIRE(data[3] == 0x44082178);
REQUIRE(data[4] == 0xc4ff2178);
REQUIRE(data[0] == EB32(0x04002178));
REQUIRE(data[1] == EB32(0x04082178));
REQUIRE(data[2] == EB32(0x44002178));
REQUIRE(data[3] == EB32(0x44082178));
REQUIRE(data[4] == EB32(0xc4ff2178));
}
TEST_CASE("ppc64: mr/or/std", "[ppc64]") {
@ -67,15 +70,15 @@ TEST_CASE("ppc64: mr/or/std", "[ppc64]") {
ctx.OR(powah::R3, powah::R3, powah::R26);
ctx.STD(powah::R3, powah::R1, 56);
ctx.MR(powah::R3, powah::R30);
REQUIRE(data[0] == 0x783bfb7c);
REQUIRE(data[1] == 0x7833dd7c);
REQUIRE(data[2] == 0x7823637c);
REQUIRE(data[3] == 0x78e3847f);
REQUIRE(data[4] == 0x820b014d);
REQUIRE(data[5] == 0x782bb97c);
REQUIRE(data[6] == 0x78d3637c);
REQUIRE(data[7] == 0x380061f8);
REQUIRE(data[8] == 0x78f3c37f);
REQUIRE(data[0] == EB32(0x783bfb7c));
REQUIRE(data[1] == EB32(0x7833dd7c));
REQUIRE(data[2] == EB32(0x7823637c));
REQUIRE(data[3] == EB32(0x78e3847f));
REQUIRE(data[4] == EB32(0x820b014d));
REQUIRE(data[5] == EB32(0x782bb97c));
REQUIRE(data[6] == EB32(0x78d3637c));
REQUIRE(data[7] == EB32(0x380061f8));
REQUIRE(data[8] == EB32(0x78f3c37f));
}
TEST_CASE("ppc64: ld/crand+addi", "[ppc64]") {
@ -93,18 +96,18 @@ TEST_CASE("ppc64: ld/crand+addi", "[ppc64]") {
ctx.ADDI(powah::R5, powah::R5, 1);
ctx.STD(powah::R26, powah::R1, 72);
ctx.STD(powah::R5, powah::R30, 1984);
REQUIRE(data[0] == 0x480081e8);
REQUIRE(data[1] == 0x5000a180);
REQUIRE(data[2] == 0x024a8a4e);
REQUIRE(data[3] == 0x0400c438);
REQUIRE(data[4] == 0xc807a474);
REQUIRE(data[5] == 0xc007bee8);
REQUIRE(data[6] == 0x54006188);
REQUIRE(data[7] == 0x0002da78);
REQUIRE(data[8] == 0x50008190);
REQUIRE(data[9] == 0x0100a538);
REQUIRE(data[10] == 0x480041fb);
REQUIRE(data[11] == 0xc007bef8);
REQUIRE(data[0] == EB32(0x480081e8));
REQUIRE(data[1] == EB32(0x5000a180));
REQUIRE(data[2] == EB32(0x024a8a4e));
REQUIRE(data[3] == EB32(0x0400c438));
REQUIRE(data[4] == EB32(0xc807a474));
REQUIRE(data[5] == EB32(0xc007bee8));
REQUIRE(data[6] == EB32(0x54006188));
REQUIRE(data[7] == EB32(0x0002da78));
REQUIRE(data[8] == EB32(0x50008190));
REQUIRE(data[9] == EB32(0x0100a538));
REQUIRE(data[10] == EB32(0x480041fb));
REQUIRE(data[11] == EB32(0xc007bef8));
}
TEST_CASE("ppc64: rotldi", "[ppc64]") {
@ -123,17 +126,102 @@ TEST_CASE("ppc64: rotldi", "[ppc64]") {
ctx.RLDIMI(powah::R4, powah::R5, 48, 8);
ctx.RLDIMI(powah::R4, powah::R3, 56, 0);
ctx.MR(powah::R3, powah::R4);
REQUIRE(data[0] == 0x00806578);
REQUIRE(data[1] == 0x00406478);
REQUIRE(data[2] == 0x2c44a478);
REQUIRE(data[3] == 0x00c06578);
REQUIRE(data[4] == 0x2c82a478);
REQUIRE(data[5] == 0x02006578);
REQUIRE(data[6] == 0x2cc0a478);
REQUIRE(data[7] == 0x02806578);
REQUIRE(data[8] == 0x0e44a478);
REQUIRE(data[9] == 0x02c06578);
REQUIRE(data[10] == 0x0e82a478);
REQUIRE(data[11] == 0x0ec06478);
REQUIRE(data[12] == 0x7823837c);
REQUIRE(data[0] == EB32(0x00806578));
REQUIRE(data[1] == EB32(0x00406478));
REQUIRE(data[2] == EB32(0x2c44a478));
REQUIRE(data[3] == EB32(0x00c06578));
REQUIRE(data[4] == EB32(0x2c82a478));
REQUIRE(data[5] == EB32(0x02006578));
REQUIRE(data[6] == EB32(0x2cc0a478));
REQUIRE(data[7] == EB32(0x02806578));
REQUIRE(data[8] == EB32(0x0e44a478));
REQUIRE(data[9] == EB32(0x02c06578));
REQUIRE(data[10] == EB32(0x0e82a478));
REQUIRE(data[11] == EB32(0x0ec06478));
REQUIRE(data[12] == EB32(0x7823837c));
}
#if 1 //&& defined(ARCHITECTURE_ppc64)
/*
0: d619637c mullw 3, 3, 3
4: 20006378 clrldi 3, 3, 32
8: 2000804e blr
*/
TEST_CASE("ppc64: live-exec square", "[ppc64]") {
uint32_t* data = (uint32_t*)mmap(nullptr, 4096, PROT_WRITE | PROT_READ | PROT_EXEC, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
REQUIRE(data != nullptr);
powah::Context ctx((void*)data, 4096);
ctx.MULLW(powah::R3, powah::R3, powah::R3);
ctx.CLRLDI(powah::R3, powah::R3, 32);
ctx.BLR();
REQUIRE(data[0] == EB32(0xd619637c));
REQUIRE(data[1] == EB32(0x20006378));
REQUIRE(data[2] == EB32(0x2000804e));
auto* fn = (int (*)(int))data;
REQUIRE(fn(4) == 4 * 4);
REQUIRE(fn(8) == 8 * 8);
munmap((void*)data, 4096);
}
/*
int f(int a, int b, int c) {
a += (a > b) ? b - 0xffff : c + 402, b += 2, c &= b*c;
return a * a + b ^ c & b;
}
*/
TEST_CASE("ppc64: live-exec xoralu", "[ppc64]") {
uint32_t* data = (uint32_t*)mmap(nullptr, 4096, PROT_WRITE | PROT_READ | PROT_EXEC, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
REQUIRE(data != nullptr);
powah::Context ctx((void*)data, 4096);
powah::Label l_2 = ctx.DefineLabel();
powah::Label l_3 = ctx.DefineLabel();
ctx.CMPW(powah::R3, powah::R4);
ctx.BGT(powah::CR0, l_2);
ctx.ADDI(powah::R6, powah::R5, 402);
ctx.B(l_3);
ctx.LABEL(l_2);
ctx.ADDI(powah::R6, powah::R4, 1);
ctx.ADDIS(powah::R6, powah::R6, -1);
ctx.LABEL(l_3);
ctx.ADDI(powah::R4, powah::R4, 2);
ctx.ADD(powah::R3, powah::R6, powah::R3);
ctx.MULLW(powah::R6, powah::R4, powah::R5);
ctx.MULLW(powah::R3, powah::R3, powah::R3);
ctx.AND(powah::R5, powah::R5, powah::R6);
ctx.ADD(powah::R3, powah::R3, powah::R4);
ctx.AND(powah::R4, powah::R5, powah::R4);
ctx.XOR(powah::R3, powah::R3, powah::R4);
ctx.EXTSW(powah::R3, powah::R3);
ctx.BLR();
ctx.ApplyRelocs();
REQUIRE(data[0] == EB32(0x0020037c));
REQUIRE(data[1] == EB32(0x0c008141));
REQUIRE(data[2] == EB32(0x9201c538));
REQUIRE(data[3] == EB32(0x0c000048));
REQUIRE(data[4] == EB32(0x0100c438));
REQUIRE(data[5] == EB32(0xffffc63c));
REQUIRE(data[6] == EB32(0x02008438));
REQUIRE(data[7] == EB32(0x141a667c));
REQUIRE(data[8] == EB32(0xd629c47c));
REQUIRE(data[9] == EB32(0xd619637c));
REQUIRE(data[10] == EB32(0x3830a57c));
REQUIRE(data[11] == EB32(0x1422637c));
REQUIRE(data[12] == EB32(0x3820a47c));
REQUIRE(data[13] == EB32(0x7822637c));
REQUIRE(data[14] == EB32(0xb407637c));
REQUIRE(data[15] == EB32(0x2000804e));
auto const orig = [](int a, int b, int c) {
a += (a > b) ? b - 0xffff : c + 402, b += 2, c &= b*c;
return a * a + b ^ c & b;
};
auto* fn = (int (*)(int, int, int))data;
REQUIRE(fn(0, 1, 2) == orig(0, 1, 2));
munmap((void*)data, 4096);
}
#endif