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Merge "Add riscv64 support for debuggerd/crasher" am: 5a6834b441

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Original change: https://android-review.googlesource.com/c/platform/system/core/+/2251619

Change-Id: If85eaf41c06e734903a859c87f2d78fac40ef2ad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Elliott Hughes 2022-10-13 16:51:13 +00:00 • committed by Automerger Merge Worker
commit ae266da509
3 changed files with 50 additions and 0 deletions
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3
debuggerd/crasher/Android.bp
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@ -27,6 +27,9 @@ cc_defaults {
arm64: {
srcs: ["arm64/crashglue.S"],
},
riscv64: {
srcs: ["riscv64/crashglue.S"],
},
x86: {
srcs: ["x86/crashglue.S"],
},

2
debuggerd/crasher/crasher.cpp
View file

@ -303,6 +303,8 @@ noinline int do_action(const char* arg) {
__asm__ volatile(".word 0xe7f0def0\n");
#elif defined(__i386__) || defined(__x86_64__)
__asm__ volatile("ud2\n");
#elif defined(__riscv)
__asm__ volatile("unimp\n");
#else
#error
#endif

45
debuggerd/crasher/riscv64/crashglue.S Normal file
View file

@ -0,0 +1,45 @@
.globl crash1
.globl crashnostack
crash1:
li x0,0xdead0000+0
li x1,0xdead0000+1
li x2,0xdead0000+2
li x3,0xdead0000+3
li x4,0xdead0000+4
li x5,0xdead0000+5
li x6,0xdead0000+6
li x7,0xdead0000+7
li x8,0xdead0000+8
li x9,0xdead0000+9
li x10,0xdead0000+10
li x11,0xdead0000+11
li x12,0xdead0000+12
li x13,0xdead0000+13
li x14,0xdead0000+14
li x15,0xdead0000+15
li x16,0xdead0000+16
li x17,0xdead0000+17
li x18,0xdead0000+18
li x19,0xdead0000+19
li x20,0xdead0000+20
li x21,0xdead0000+21
li x22,0xdead0000+22
li x23,0xdead0000+23
li x24,0xdead0000+24
li x25,0xdead0000+25
li x26,0xdead0000+26
li x27,0xdead0000+27
li x28,0xdead0000+28
# don't trash the stack otherwise the signal handler won't run
#li $29,0xdead0000+29
li x30,0xdead0000+30
li x31,0xdead0000+31
j .
crashnostack:
li sp, 0
j .