Module: wine Branch: master Commit: c74f41e46db51277976f0e95ee46625e9c127f3f URL: https://gitlab.winehq.org/wine/wine/-/commit/c74f41e46db51277976f0e95ee46625...
Author: Alexandre Julliard julliard@winehq.org Date: Mon Nov 20 13:53:45 2023 +0100
ntdll: Connect syscall frames across user callbacks on ARM64.
---
dlls/ntdll/unix/dwarf.h | 12 ++++++++++++ dlls/ntdll/unix/signal_arm64.c | 35 +++++++++++++++++++++++++++++++++-- 2 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/dlls/ntdll/unix/dwarf.h b/dlls/ntdll/unix/dwarf.h index 88c6991747f..ef9eabb1d53 100644 --- a/dlls/ntdll/unix/dwarf.h +++ b/dlls/ntdll/unix/dwarf.h @@ -1050,7 +1050,19 @@ static void apply_frame_state( CONTEXT *context, struct frame_state *state,
#elif defined(__aarch64__)
+#define DW_OP_x19 DW_OP_breg19 +#define DW_OP_x20 DW_OP_breg20 +#define DW_OP_x21 DW_OP_breg21 +#define DW_OP_x22 DW_OP_breg22 +#define DW_OP_x23 DW_OP_breg23 +#define DW_OP_x24 DW_OP_breg24 +#define DW_OP_x25 DW_OP_breg25 +#define DW_OP_x26 DW_OP_breg26 +#define DW_OP_x27 DW_OP_breg27 #define DW_OP_x28 DW_OP_breg28 +#define DW_OP_x29 DW_OP_breg29 +#define DW_OP_x30 DW_OP_breg30 +#define DW_OP_sp DW_OP_breg31
#define DW_REG_x19 19 #define DW_REG_x20 20 diff --git a/dlls/ntdll/unix/signal_arm64.c b/dlls/ntdll/unix/signal_arm64.c index 37a2f9b1d3b..4eda6d2eb88 100644 --- a/dlls/ntdll/unix/signal_arm64.c +++ b/dlls/ntdll/unix/signal_arm64.c @@ -1790,8 +1790,23 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher, "stp q26, q27, [x10, #0x2d0]\n\t" "stp q28, q29, [x10, #0x2f0]\n\t" "stp q30, q31, [x10, #0x310]\n\t" + "mov x22, x10\n\t" /* switch to kernel stack */ "mov sp, x10\n\t" + /* we're now on the kernel stack, stitch unwind info with previous frame */ + __ASM_CFI_CFA_IS_AT2(x22, 0x98, 0x02) /* frame->syscall_cfa */ + __ASM_CFI(".cfi_offset 29, -0xc0\n\t") + __ASM_CFI(".cfi_offset 30, -0xb8\n\t") + __ASM_CFI(".cfi_offset 19, -0xb0\n\t") + __ASM_CFI(".cfi_offset 20, -0xa8\n\t") + __ASM_CFI(".cfi_offset 21, -0xa0\n\t") + __ASM_CFI(".cfi_offset 22, -0x98\n\t") + __ASM_CFI(".cfi_offset 23, -0x90\n\t") + __ASM_CFI(".cfi_offset 24, -0x88\n\t") + __ASM_CFI(".cfi_offset 25, -0x80\n\t") + __ASM_CFI(".cfi_offset 26, -0x78\n\t") + __ASM_CFI(".cfi_offset 27, -0x70\n\t") + __ASM_CFI(".cfi_offset 28, -0x68\n\t") "and x20, x8, #0xfff\n\t" /* syscall number */ "ubfx x21, x8, #12, #2\n\t" /* syscall table number */ "adr x16, " __ASM_NAME("KeServiceDescriptorTable") "\n\t" @@ -1799,7 +1814,6 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher, "ldr x16, [x21, #16]\n\t" /* table->ServiceLimit */ "cmp x20, x16\n\t" "bcs 4f\n\t" - "mov x22, sp\n\t" "ldr x16, [x21, #24]\n\t" /* table->ArgumentTable */ "ldrb w9, [x16, x20]\n\t" "subs x9, x9, #64\n\t" @@ -1815,6 +1829,7 @@ __ASM_GLOBAL_FUNC( __wine_syscall_dispatcher, "ldr x16, [x16, x20, lsl 3]\n\t" "blr x16\n\t" "mov sp, x22\n" + __ASM_CFI_CFA_IS_AT2(sp, 0x98, 0x02) /* frame->syscall_cfa */ __ASM_LOCAL_LABEL("__wine_syscall_dispatcher_return") ":\n\t" "ldr w16, [sp, #0x10c]\n\t" /* frame->restore_flags */ "tbz x16, #1, 2f\n\t" /* CONTEXT_INTEGER */ @@ -1894,14 +1909,30 @@ __ASM_GLOBAL_FUNC( __wine_unix_call_dispatcher, "stp x30, x9, [x10, #0xf0]\n\t" "mrs x9, NZCV\n\t" "stp x30, x9, [x10, #0x100]\n\t" + "mov x19, x10\n\t" /* switch to kernel stack */ "mov sp, x10\n\t" + /* we're now on the kernel stack, stitch unwind info with previous frame */ + __ASM_CFI_CFA_IS_AT2(x19, 0x98, 0x02) /* frame->syscall_cfa */ + __ASM_CFI(".cfi_offset 29, -0xc0\n\t") + __ASM_CFI(".cfi_offset 30, -0xb8\n\t") + __ASM_CFI(".cfi_offset 19, -0xb0\n\t") + __ASM_CFI(".cfi_offset 20, -0xa8\n\t") + __ASM_CFI(".cfi_offset 21, -0xa0\n\t") + __ASM_CFI(".cfi_offset 22, -0x98\n\t") + __ASM_CFI(".cfi_offset 23, -0x90\n\t") + __ASM_CFI(".cfi_offset 24, -0x88\n\t") + __ASM_CFI(".cfi_offset 25, -0x80\n\t") + __ASM_CFI(".cfi_offset 26, -0x78\n\t") + __ASM_CFI(".cfi_offset 27, -0x70\n\t") + __ASM_CFI(".cfi_offset 28, -0x68\n\t") "ldr x16, [x0, x1, lsl 3]\n\t" "mov x0, x2\n\t" /* args */ "blr x16\n\t" "ldr w16, [sp, #0x10c]\n\t" /* frame->restore_flags */ "cbnz w16, " __ASM_LOCAL_LABEL("__wine_syscall_dispatcher_return") "\n\t" - "ldr x18, [sp, #0x90]\n\t" + __ASM_CFI_CFA_IS_AT2(sp, 0x98, 0x02) /* frame->syscall_cfa */ + "ldp x18, x19, [sp, #0x90]\n\t" "ldp x16, x17, [sp, #0xf8]\n\t" /* switch to user stack */ "mov sp, x16\n\t"
-
Alexandre Julliard