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-rw-r--r--debuggerd/Android.mk34
-rw-r--r--debuggerd/arm/crashglue.S40
-rw-r--r--debuggerd/arm/machine.cpp25
-rw-r--r--debuggerd/arm/vfp.S43
-rw-r--r--debuggerd/arm64/crashglue.S38
-rw-r--r--debuggerd/arm64/machine.cpp7
-rw-r--r--debuggerd/arm64/vfp.S42
-rw-r--r--debuggerd/vfp-crasher.c7
8 files changed, 75 insertions, 161 deletions
diff --git a/debuggerd/Android.mk b/debuggerd/Android.mk
index e4d7ecc..191e283 100644
--- a/debuggerd/Android.mk
+++ b/debuggerd/Android.mk
@@ -22,13 +22,6 @@ LOCAL_CPPFLAGS := \
-Wunused \
-Werror \
-ifeq ($(ARCH_ARM_HAVE_VFP),true)
-LOCAL_CFLAGS_arm += -DWITH_VFP
-endif # ARCH_ARM_HAVE_VFP
-ifeq ($(ARCH_ARM_HAVE_VFP_D32),true)
-LOCAL_CFLAGS_arm += -DWITH_VFP_D32
-endif # ARCH_ARM_HAVE_VFP_D32
-
LOCAL_SHARED_LIBRARIES := \
libbacktrace \
libcutils \
@@ -65,30 +58,3 @@ LOCAL_MODULE_STEM_64 := crasher64
LOCAL_MULTILIB := both
include $(BUILD_EXECUTABLE)
-
-include $(CLEAR_VARS)
-
-ifeq ($(ARCH_ARM_HAVE_VFP),true)
-LOCAL_MODULE_TARGET_ARCH += arm
-LOCAL_SRC_FILES_arm := arm/vfp.S
-LOCAL_CFLAGS_arm += -DWITH_VFP
-ifeq ($(ARCH_ARM_HAVE_VFP_D32),true)
-LOCAL_CFLAGS_arm += -DWITH_VFP_D32
-endif # ARCH_ARM_HAVE_VFP_D32
-endif # ARCH_ARM_HAVE_VFP == true
-LOCAL_CFLAGS += -Werror
-
-LOCAL_SRC_FILES_arm64 := arm64/vfp.S
-LOCAL_MODULE_TARGET_ARCH += arm64
-
-LOCAL_SRC_FILES := vfp-crasher.c
-LOCAL_MODULE := vfp-crasher
-LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
-LOCAL_MODULE_TAGS := optional
-LOCAL_SHARED_LIBRARIES := libcutils liblog libc
-
-LOCAL_MODULE_STEM_32 := vfp-crasher
-LOCAL_MODULE_STEM_64 := vfp-crasher64
-LOCAL_MULTILIB := both
-
-include $(BUILD_EXECUTABLE)
diff --git a/debuggerd/arm/crashglue.S b/debuggerd/arm/crashglue.S
index eb9d0e3..8649056 100644
--- a/debuggerd/arm/crashglue.S
+++ b/debuggerd/arm/crashglue.S
@@ -1,8 +1,5 @@
.globl crash1
.type crash1, %function
-.globl crashnostack
-.type crashnostack, %function
-
crash1:
ldr r0, =0xa5a50000
ldr r1, =0xa5a50001
@@ -18,11 +15,46 @@ crash1:
ldr r11, =0xa5a50011
ldr r12, =0xa5a50012
+
+ fconstd d0, #0
+ fconstd d1, #1
+ fconstd d2, #2
+ fconstd d3, #3
+ fconstd d4, #4
+ fconstd d5, #5
+ fconstd d6, #6
+ fconstd d7, #7
+ fconstd d8, #8
+ fconstd d9, #9
+ fconstd d10, #10
+ fconstd d11, #11
+ fconstd d12, #12
+ fconstd d13, #13
+ fconstd d14, #14
+ fconstd d15, #15
+ fconstd d16, #16
+ fconstd d17, #17
+ fconstd d18, #18
+ fconstd d19, #19
+ fconstd d20, #20
+ fconstd d21, #21
+ fconstd d22, #22
+ fconstd d23, #23
+ fconstd d24, #24
+ fconstd d25, #25
+ fconstd d26, #26
+ fconstd d27, #27
+ fconstd d28, #28
+ fconstd d29, #29
+ fconstd d30, #30
+ fconstd d31, #31
+
mov lr, #0
ldr lr, [lr]
b .
-
+.globl crashnostack
+.type crashnostack, %function
crashnostack:
mov sp, #0
mov r0, #0
diff --git a/debuggerd/arm/machine.cpp b/debuggerd/arm/machine.cpp
index 839d47a..8270066 100644
--- a/debuggerd/arm/machine.cpp
+++ b/debuggerd/arm/machine.cpp
@@ -27,21 +27,8 @@
#include "../utility.h"
#include "../machine.h"
-// enable to dump memory pointed to by every register
-#define DUMP_MEMORY_FOR_ALL_REGISTERS 1
-
-#ifdef WITH_VFP
-#ifdef WITH_VFP_D32
-#define NUM_VFP_REGS 32
-#else
-#define NUM_VFP_REGS 16
-#endif
-#endif
-
-// If configured to do so, dump memory around *all* registers
-// for the crashing thread.
void dump_memory_and_code(log_t* log, pid_t tid) {
- struct pt_regs regs;
+ pt_regs regs;
if (ptrace(PTRACE_GETREGS, tid, 0, &regs)) {
return;
}
@@ -73,7 +60,7 @@ void dump_memory_and_code(log_t* log, pid_t tid) {
}
void dump_registers(log_t* log, pid_t tid) {
- struct pt_regs r;
+ pt_regs r;
if (ptrace(PTRACE_GETREGS, tid, 0, &r)) {
_LOG(log, logtype::REGISTERS, "cannot get registers: %s\n", strerror(errno));
return;
@@ -93,19 +80,15 @@ void dump_registers(log_t* log, pid_t tid) {
static_cast<uint32_t>(r.ARM_lr), static_cast<uint32_t>(r.ARM_pc),
static_cast<uint32_t>(r.ARM_cpsr));
-#ifdef WITH_VFP
- struct user_vfp vfp_regs;
- int i;
-
+ user_vfp vfp_regs;
if (ptrace(PTRACE_GETVFPREGS, tid, 0, &vfp_regs)) {
_LOG(log, logtype::REGISTERS, "cannot get registers: %s\n", strerror(errno));
return;
}
- for (i = 0; i < NUM_VFP_REGS; i += 2) {
+ for (size_t i = 0; i < 32; i += 2) {
_LOG(log, logtype::REGISTERS, " d%-2d %016llx d%-2d %016llx\n",
i, vfp_regs.fpregs[i], i+1, vfp_regs.fpregs[i+1]);
}
_LOG(log, logtype::REGISTERS, " scr %08lx\n", vfp_regs.fpscr);
-#endif
}
diff --git a/debuggerd/arm/vfp.S b/debuggerd/arm/vfp.S
deleted file mode 100644
index 9744f6f..0000000
--- a/debuggerd/arm/vfp.S
+++ /dev/null
@@ -1,43 +0,0 @@
- .text
- .align 2
- .global crash
- .type crash, %function
-crash:
- fconstd d0, #0
- fconstd d1, #1
- fconstd d2, #2
- fconstd d3, #3
- fconstd d4, #4
- fconstd d5, #5
- fconstd d6, #6
- fconstd d7, #7
- fconstd d8, #8
- fconstd d9, #9
- fconstd d10, #10
- fconstd d11, #11
- fconstd d12, #12
- fconstd d13, #13
- fconstd d14, #14
- fconstd d15, #15
-#ifdef WITH_VFP_D32
- fconstd d16, #16
- fconstd d17, #17
- fconstd d18, #18
- fconstd d19, #19
- fconstd d20, #20
- fconstd d21, #21
- fconstd d22, #22
- fconstd d23, #23
- fconstd d24, #24
- fconstd d25, #25
- fconstd d26, #26
- fconstd d27, #27
- fconstd d28, #28
- fconstd d29, #29
- fconstd d30, #30
- fconstd d31, #31
-#endif
- mov r0, #0
- str r0, [r0]
- bx lr
-
diff --git a/debuggerd/arm64/crashglue.S b/debuggerd/arm64/crashglue.S
index b06b67c..e58b542 100644
--- a/debuggerd/arm64/crashglue.S
+++ b/debuggerd/arm64/crashglue.S
@@ -1,8 +1,5 @@
.globl crash1
.type crash1, %function
-.globl crashnostack
-.type crashnostack, %function
-
crash1:
ldr x0, =0xa5a50000
ldr x1, =0xa5a50001
@@ -35,11 +32,46 @@ crash1:
ldr x28, =0xa5a50028
ldr x29, =0xa5a50029
+ fmov d0, -1.0 // -1 is more convincing than 0.
+ fmov d1, 1.0
+ fmov d2, 2.0
+ fmov d3, 3.0
+ fmov d4, 4.0
+ fmov d5, 5.0
+ fmov d6, 6.0
+ fmov d7, 7.0
+ fmov d8, 8.0
+ fmov d9, 9.0
+ fmov d10, 10.0
+ fmov d11, 11.0
+ fmov d12, 12.0
+ fmov d13, 13.0
+ fmov d14, 14.0
+ fmov d15, 15.0
+ fmov d16, 16.0
+ fmov d17, 17.0
+ fmov d18, 18.0
+ fmov d19, 19.0
+ fmov d20, 20.0
+ fmov d21, 21.0
+ fmov d22, 22.0
+ fmov d23, 23.0
+ fmov d24, 24.0
+ fmov d25, 25.0
+ fmov d26, 26.0
+ fmov d27, 27.0
+ fmov d28, 28.0
+ fmov d29, 29.0
+ fmov d30, 30.0
+ fmov d31, 31.0
+
mov x30, xzr
ldr x30, [x30]
b .
+.globl crashnostack
+.type crashnostack, %function
crashnostack:
mov x0, xzr
add sp, x0, xzr
diff --git a/debuggerd/arm64/machine.cpp b/debuggerd/arm64/machine.cpp
index 48308c3..ec664bd 100644
--- a/debuggerd/arm64/machine.cpp
+++ b/debuggerd/arm64/machine.cpp
@@ -30,13 +30,6 @@
#include "../utility.h"
#include "../machine.h"
-/* enable to dump memory pointed to by every register */
-#define DUMP_MEMORY_FOR_ALL_REGISTERS 1
-
-/*
- * If configured to do so, dump memory around *all* registers
- * for the crashing thread.
- */
void dump_memory_and_code(log_t* log, pid_t tid) {
struct user_pt_regs regs;
struct iovec io;
diff --git a/debuggerd/arm64/vfp.S b/debuggerd/arm64/vfp.S
deleted file mode 100644
index bf12c22..0000000
--- a/debuggerd/arm64/vfp.S
+++ /dev/null
@@ -1,42 +0,0 @@
- .text
- .align 2
- .global crash
- .type crash, %function
-crash:
- fmov d0, XZR
- fmov d1, 1.0
- fmov d2, 2.0
- fmov d3, 3.0
- fmov d4, 4.0
- fmov d5, 5.0
- fmov d6, 6.0
- fmov d7, 7.0
- fmov d8, 8.0
- fmov d9, 9.0
- fmov d10, 10.0
- fmov d11, 11.0
- fmov d12, 12.0
- fmov d13, 13.0
- fmov d14, 14.0
- fmov d15, 15.0
- fmov d16, 16.0
- fmov d17, 17.0
- fmov d18, 18.0
- fmov d19, 19.0
- fmov d20, 20.0
- fmov d21, 21.0
- fmov d22, 22.0
- fmov d23, 23.0
- fmov d24, 24.0
- fmov d25, 25.0
- fmov d26, 26.0
- fmov d27, 27.0
- fmov d28, 28.0
- fmov d29, 29.0
- fmov d30, 30.0
- fmov d31, 31.0
-
- mov x0, xzr
- str x0, [x0]
- br x30
-
diff --git a/debuggerd/vfp-crasher.c b/debuggerd/vfp-crasher.c
deleted file mode 100644
index 7a19cdd..0000000
--- a/debuggerd/vfp-crasher.c
+++ /dev/null
@@ -1,7 +0,0 @@
-int main()
-{
- extern void crash(void);
-
- crash();
- return 0;
-}
generated by cgit v1.1 at 2024-12-25 02:24:51 +0000