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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
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@@ -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);