Merge "resolved conflicts for merge of a6405e9d to jb-mr1-dev" into jb-mr1-dev (2bf953a9) · Commits · e / os / android_system_core

libcorkscrew/arch-arm/backtrace-arm.c

+23 −11

Original line number	Diff line number	Diff line
		@@ -62,21 +62,19 @@
		#include <sys/exec_elf.h>
		#include <cutils/log.h>

		#if !defined(__BIONIC_HAVE_UCONTEXT_T)
		/* Old versions of the Android <signal.h> didn't define ucontext_t. */
		#include <asm/sigcontext.h> /* Ensure 'struct sigcontext' is defined. */

		/* Machine context at the time a signal was raised. */
		typedef struct ucontext {
		uint32_t uc_flags;
		struct ucontext* uc_link;
		stack_t uc_stack;
		struct sigcontext {
		uint32_t trap_no;
		uint32_t error_code;
		uint32_t oldmask;
		uint32_t gregs[16];
		uint32_t arm_cpsr;
		uint32_t fault_address;
		} uc_mcontext;
		struct sigcontext uc_mcontext;
		uint32_t uc_sigmask;
		} ucontext_t;
		#endif /* !__BIONIC_HAVE_UCONTEXT_T */

		/* Unwind state. */
		typedef struct {
		@@ -560,9 +558,23 @@ ssize_t unwind_backtrace_signal_arch(siginfo_t* siginfo, void* sigcontext,
		const ucontext_t* uc = (const ucontext_t*)sigcontext;

		unwind_state_t state;
		for (int i = 0; i < 16; i++) {
		state.gregs[i] = uc->uc_mcontext.gregs[i];
		}

		state.gregs[0] = uc->uc_mcontext.arm_r0;
		state.gregs[1] = uc->uc_mcontext.arm_r1;
		state.gregs[2] = uc->uc_mcontext.arm_r2;
		state.gregs[3] = uc->uc_mcontext.arm_r3;
		state.gregs[4] = uc->uc_mcontext.arm_r4;
		state.gregs[5] = uc->uc_mcontext.arm_r5;
		state.gregs[6] = uc->uc_mcontext.arm_r6;
		state.gregs[7] = uc->uc_mcontext.arm_r7;
		state.gregs[8] = uc->uc_mcontext.arm_r8;
		state.gregs[9] = uc->uc_mcontext.arm_r9;
		state.gregs[10] = uc->uc_mcontext.arm_r10;
		state.gregs[11] = uc->uc_mcontext.arm_fp;
		state.gregs[12] = uc->uc_mcontext.arm_ip;
		state.gregs[13] = uc->uc_mcontext.arm_sp;
		state.gregs[14] = uc->uc_mcontext.arm_lr;
		state.gregs[15] = uc->uc_mcontext.arm_pc;

		memory_t memory;
		init_memory(&memory, map_info_list);

libcorkscrew/arch-x86/backtrace-x86.c

+34 −8

Original line number	Diff line number	Diff line
		@@ -35,18 +35,50 @@

		#if defined(__BIONIC__)

		#if defined(__BIONIC_HAVE_UCONTEXT_T)

		// Bionic offers the Linux kernel headers.
		#include <asm/sigcontext.h>
		#include <asm/ucontext.h>
		typedef struct ucontext ucontext_t;

		#else
		#else /* __BIONIC_HAVE_UCONTEXT_T */

		/* Old versions of the Android <signal.h> didn't define ucontext_t. */

		typedef struct {
		uint32_t gregs[32];
		void* fpregs;
		uint32_t oldmask;
		uint32_t cr2;
		} mcontext_t;

		enum {
		REG_GS = 0, REG_FS, REG_ES, REG_DS,
		REG_EDI, REG_ESI, REG_EBP, REG_ESP,
		REG_EBX, REG_EDX, REG_ECX, REG_EAX,
		REG_TRAPNO, REG_ERR, REG_EIP, REG_CS,
		REG_EFL, REG_UESP, REG_SS
		};

		/* Machine context at the time a signal was raised. */
		typedef struct ucontext {
		uint32_t uc_flags;
		struct ucontext* uc_link;
		stack_t uc_stack;
		mcontext_t uc_mcontext;
		uint32_t uc_sigmask;
		} ucontext_t;

		#endif /* __BIONIC_HAVE_UCONTEXT_T */

		#else /* __BIONIC__ */

		// glibc has its own renaming of the Linux kernel's structures.
		#define __USE_GNU // For REG_EBP, REG_ESP, and REG_EIP.
		#include <ucontext.h>

		#endif
		#endif /* __ BIONIC__ */

		/* Unwind state. */
		typedef struct {
		@@ -96,15 +128,9 @@ ssize_t unwind_backtrace_signal_arch(siginfo_t* siginfo __attribute__((unused)),
		const ucontext_t* uc = (const ucontext_t*)sigcontext;

		unwind_state_t state;
		#if defined(__BIONIC__)
		state.ebp = uc->uc_mcontext.ebp;
		state.esp = uc->uc_mcontext.esp;
		state.eip = uc->uc_mcontext.eip;
		#else
		state.ebp = uc->uc_mcontext.gregs[REG_EBP];
		state.esp = uc->uc_mcontext.gregs[REG_ESP];
		state.eip = uc->uc_mcontext.gregs[REG_EIP];
		#endif

		memory_t memory;
		init_memory(&memory, map_info_list);