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Misc NDR changes

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Force NDR on ARMv7/ARM64

Make GCC/Clang not use anything in the red zone

Compile with `-fno-omit-frame-pointer`
This commit is contained in:
Cacodemon345
2025-03-02 23:14:10 +06:00
parent f290cc0173
commit 6b55b2383a
4 changed files with 39 additions and 13 deletions
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18
src/codegen_new/codegen_backend_x86-64.c
View File

@@ -315,13 +315,19 @@ codegen_backend_init(void)
# endif
host_x86_CALL(block, (void *) x86gpf);
codegen_exit_rout = &codeblock[block_current].data[block_pos];
#ifdef _WIN64
host_x86_ADD64_REG_IMM(block, REG_RSP, 0x38);
#else
host_x86_ADD64_REG_IMM(block, REG_RSP, 0x48);
#endif
host_x86_POP(block, REG_R15);
host_x86_POP(block, REG_R14);
host_x86_POP(block, REG_R13);
host_x86_POP(block, REG_R12);
#ifdef _WIN64
host_x86_POP(block, REG_RDI);
host_x86_POP(block, REG_RSI);
#endif
host_x86_POP(block, REG_RBP);
host_x86_POP(block, REG_RDX);
host_x86_RET(block);
@@ -346,13 +352,19 @@ codegen_backend_prologue(codeblock_t *block)
block_pos = BLOCK_START; /*Entry code*/
host_x86_PUSH(block, REG_RBX);
host_x86_PUSH(block, REG_RBP);
#ifdef _WIN64
host_x86_PUSH(block, REG_RSI);
host_x86_PUSH(block, REG_RDI);
#endif
host_x86_PUSH(block, REG_R12);
host_x86_PUSH(block, REG_R13);
host_x86_PUSH(block, REG_R14);
host_x86_PUSH(block, REG_R15);
#ifdef _WIN64
host_x86_SUB64_REG_IMM(block, REG_RSP, 0x38);
#else
host_x86_SUB64_REG_IMM(block, REG_RSP, 0x48);
#endif
host_x86_MOV64_REG_IMM(block, REG_RBP, ((uintptr_t) &cpu_state) + 128);
if (block->flags & CODEBLOCK_HAS_FPU) {
host_x86_MOV32_REG_ABS(block, REG_EAX, &cpu_state.TOP);
@@ -366,13 +378,19 @@ codegen_backend_prologue(codeblock_t *block)
void
codegen_backend_epilogue(codeblock_t *block)
{
#ifdef _WIN64
host_x86_ADD64_REG_IMM(block, REG_RSP, 0x38);
#else
host_x86_ADD64_REG_IMM(block, REG_RSP, 0x48);
#endif
host_x86_POP(block, REG_R15);
host_x86_POP(block, REG_R14);
host_x86_POP(block, REG_R13);
host_x86_POP(block, REG_R12);
#ifdef _WIN64
host_x86_POP(block, REG_RDI);
host_x86_POP(block, REG_RSI);
#endif
host_x86_POP(block, REG_RBP);
host_x86_POP(block, REG_RDX);
host_x86_RET(block);

24
src/codegen_new/codegen_backend_x86-64_ops.c
View File

@@ -848,11 +848,11 @@ host_x86_MOV16_REG_BASE_OFFSET(codeblock_t *block, int dst_reg, int base_reg, in
if (offset >= -128 && offset <= 127) {
if (base_reg == REG_RSP) {
codegen_alloc_bytes(block, 5);
codegen_addbyte(block, 0x66);
codegen_addbyte(block, 0x66); /* MOV dst_reg, [RSP + offset] */
codegen_addbyte4(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), 0x24, offset);
} else {
codegen_alloc_bytes(block, 4);
codegen_addbyte4(block, 0x66, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset);
codegen_addbyte4(block, 0x66, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset); /* MOV dst_reg, [base_reg + offset] */
}
} else
fatal("MOV16_REG_BASE_OFFSET - offset %i\n", offset);
@@ -866,10 +866,10 @@ host_x86_MOV32_REG_BASE_OFFSET(codeblock_t *block, int dst_reg, int base_reg, in
if (offset >= -128 && offset <= 127) {
if (base_reg == REG_RSP) {
codegen_alloc_bytes(block, 4);
codegen_addbyte4(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), 0x24, offset);
codegen_addbyte4(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), 0x24, offset); /* MOV dst_reg, [RSP + offset] */
} else {
codegen_alloc_bytes(block, 3);
codegen_addbyte3(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset);
codegen_addbyte3(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset); /* MOV dst_reg, [base_reg + offset] */
}
} else
fatal("MOV32_REG_BASE_OFFSET - offset %i\n", offset);
@@ -883,11 +883,11 @@ host_x86_MOV64_REG_BASE_OFFSET(codeblock_t *block, int dst_reg, int base_reg, in
if (offset >= -128 && offset <= 127) {
if (base_reg == REG_RSP) {
codegen_alloc_bytes(block, 5);
codegen_addbyte(block, 0x48);
codegen_addbyte(block, 0x48); /* MOV dst_reg, [RSP + offset] */
codegen_addbyte4(block, 0x8b, 0x40 | base_reg | (dst_reg << 3), 0x24, offset);
} else {
codegen_alloc_bytes(block, 4);
codegen_addbyte4(block, 0x48, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset);
codegen_addbyte4(block, 0x48, 0x8b, 0x40 | base_reg | (dst_reg << 3), offset); /* MOV dst_reg, [base_reg + offset] */
}
} else
fatal("MOV32_REG_BASE_OFFSET - offset %i\n", offset);
@@ -901,11 +901,11 @@ host_x86_MOV32_BASE_OFFSET_REG(codeblock_t *block, int base_reg, int offset, int
if (offset >= -128 && offset <= 127) {
if (base_reg == REG_RSP) {
codegen_alloc_bytes(block, 4);
codegen_alloc_bytes(block, 4); /* MOV [RSP + offset], src_reg*/
codegen_addbyte4(block, 0x89, 0x40 | base_reg | (src_reg << 3), 0x24, offset);
} else {
codegen_alloc_bytes(block, 3);
codegen_addbyte3(block, 0x89, 0x40 | base_reg | (src_reg << 3), offset);
codegen_addbyte3(block, 0x89, 0x40 | base_reg | (src_reg << 3), offset); /* MOV [base_reg + offset], src_reg*/
}
} else
fatal("MOV32_BASE_OFFSET_REG - offset %i\n", offset);
@@ -919,11 +919,11 @@ host_x86_MOV64_BASE_OFFSET_REG(codeblock_t *block, int base_reg, int offset, int
if (offset >= -128 && offset <= 127) {
if (base_reg == REG_RSP) {
codegen_alloc_bytes(block, 5);
codegen_addbyte(block, 0x48);
codegen_addbyte(block, 0x48); /* MOV [RSP + offset], src_reg*/
codegen_addbyte4(block, 0x89, 0x40 | base_reg | (src_reg << 3), 0x24, offset);
} else {
codegen_alloc_bytes(block, 4);
codegen_addbyte4(block, 0x48, 0x89, 0x40 | base_reg | (src_reg << 3), offset);
codegen_addbyte4(block, 0x48, 0x89, 0x40 | base_reg | (src_reg << 3), offset); /* MOV [base_reg + offset], src_reg*/
}
} else
fatal("MOV64_BASE_OFFSET_REG - offset %i\n", offset);
@@ -938,11 +938,11 @@ host_x86_MOV32_BASE_OFFSET_IMM(codeblock_t *block, int base_reg, int offset, uin
if (offset >= -128 && offset <= 127) {
if (base_reg == REG_RSP) {
codegen_alloc_bytes(block, 8);
codegen_addbyte4(block, 0xc7, 0x40 | base_reg, 0x24, offset);
codegen_addbyte4(block, 0xc7, 0x40 | base_reg, 0x24, offset); /* MOV [RSP + offset], imm_data */
codegen_addlong(block, imm_data);
} else {
codegen_alloc_bytes(block, 7);
codegen_addbyte3(block, 0xc7, 0x40 | base_reg, offset);
codegen_addbyte3(block, 0xc7, 0x40 | base_reg, offset); /* MOV [base_reg + offset], src_reg*/
codegen_addlong(block, imm_data);
}
} else