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[mips64] Support for mips n64

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Adding remaining mips n64 support including stackwalker.

BUG=None
TEST=manually tested on Linux/Android
R=vapier@chromium.org

Review URL: https://codereview.chromium.org/1418453011 .
This commit is contained in:
Mike Frysinger 2016-02-06 18:58:39 -05:00
parent c199f5b122
commit 76c51742c9
19 changed files with 1176 additions and 140 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/processor/stackwalker_mips_unittest.cc
View file

@ -145,6 +145,7 @@ class StackwalkerMIPSFixture {
class SanityCheck: public StackwalkerMIPSFixture, public Test { };
TEST_F(SanityCheck, NoResolver) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
stack_section.start() = 0x80000000;
stack_section.D32(0).D32(0x0);
RegionFromSection();
@ -173,6 +174,7 @@ TEST_F(SanityCheck, NoResolver) {
class GetContextFrame: public StackwalkerMIPSFixture, public Test { };
TEST_F(GetContextFrame, Simple) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
stack_section.start() = 0x80000000;
stack_section.D32(0).D32(0x0);
RegionFromSection();
@ -199,6 +201,7 @@ TEST_F(GetContextFrame, Simple) {
// The stackwalker should be able to produce the context frame even
// without stack memory present.
TEST_F(GetContextFrame, NoStackMemory) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
raw_context.epc = 0x00400020;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
@ -222,6 +225,7 @@ TEST_F(GetContextFrame, NoStackMemory) {
class GetCallerFrame: public StackwalkerMIPSFixture, public Test { };
TEST_F(GetCallerFrame, ScanWithoutSymbols) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
// When the stack walker resorts to scanning the stack,
// only addresses located within loaded modules are
// considered valid return addresses.
@ -298,6 +302,7 @@ TEST_F(GetCallerFrame, ScanWithoutSymbols) {
}
TEST_F(GetCallerFrame, ScanWithFunctionSymbols) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
// During stack scanning, if a potential return address
// is located within a loaded module that has symbols,
// it is only considered a valid return address if it
@ -366,6 +371,7 @@ TEST_F(GetCallerFrame, ScanWithFunctionSymbols) {
}
TEST_F(GetCallerFrame, CheckStackFrameSizeLimit) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
// If the stackwalker resorts to stack scanning, it will scan only
// 1024 bytes of stack which correspondes to maximum size of stack frame.
stack_section.start() = 0x80000000;
@ -437,6 +443,7 @@ TEST_F(GetCallerFrame, CheckStackFrameSizeLimit) {
// Test that set_max_frames_scanned prevents using stack scanning
// to find caller frames.
TEST_F(GetCallerFrame, ScanningNotAllowed) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
// When the stack walker resorts to scanning the stack,
// only fixed number of frames are allowed to be scanned out from stack
stack_section.start() = 0x80000000;
@ -646,6 +653,7 @@ class CFI: public CFIFixture, public Test { };
// TODO(gordanac): add CFI tests
TEST_F(CFI, At4004) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
Label frame1_sp = expected.iregs[MD_CONTEXT_MIPS_REG_SP];
stack_section
// frame0
@ -660,6 +668,7 @@ TEST_F(CFI, At4004) {
// Check that we reject rules that would cause the stack pointer to
// move in the wrong direction.
TEST_F(CFI, RejectBackwards) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
raw_context.epc = 0x40005000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = 0x00405510;
@ -679,6 +688,7 @@ TEST_F(CFI, RejectBackwards) {
// Check that we reject rules whose expressions' evaluation fails.
TEST_F(CFI, RejectBadExpressions) {
raw_context.context_flags = raw_context.context_flags | MD_CONTEXT_MIPS_FULL;
raw_context.epc = 0x00407000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_SP] = 0x80000000;
raw_context.iregs[MD_CONTEXT_MIPS_REG_RA] = 0x00405510;