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| author | Regia König | 2022-08-08 14:39:17 +0200 |
|---|---|---|
| committer | Regia König | 2022-08-08 14:39:17 +0200 |
| commit | 241dbe4e78b4286aa2fc2b7df345c6bedaa6fa33 (patch) | |
| tree | ccafb71e0044f498a00d76cf98d6e8d9d57eb9be /test_code/ovmf_with_gdb_16_5_2022.txt | |
| parent | More detailed documantation on gdb with ovmf (diff) | |
| download | memtest86-241dbe4e78b4286aa2fc2b7df345c6bedaa6fa33.tar.gz memtest86-241dbe4e78b4286aa2fc2b7df345c6bedaa6fa33.tar.xz memtest86-241dbe4e78b4286aa2fc2b7df345c6bedaa6fa33.zip | |
last changes
Diffstat (limited to 'test_code/ovmf_with_gdb_16_5_2022.txt')
| -rw-r--r-- | test_code/ovmf_with_gdb_16_5_2022.txt | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/test_code/ovmf_with_gdb_16_5_2022.txt b/test_code/ovmf_with_gdb_16_5_2022.txt index 5062c35..c5b8b7a 100644 --- a/test_code/ovmf_with_gdb_16_5_2022.txt +++ b/test_code/ovmf_with_gdb_16_5_2022.txt @@ -92,12 +92,34 @@ add-symbol-file edk2/Build/OvmfX64/DEBUG_GCC5/X64/DxeCore.debug 0x7ea8240 add-symbol-file edk2/Build/OvmfX64/DEBUG_GCC5/X64/DevicePathDxe.debug 0x7b8f240 Now we are ready. +$ less debug.log +... +The 0th FV start address is 0x0000082000 +... +Loading PEIM at 0x0000082BFC0 + Entry Point = 0x0000082F40A PcdPeim.efi +... + $ make debug Let’s place a breakpoint at BootServices->HandleProtocol(). (gdb) source gdbscript -q +. +. +. +add symbol table from file "/home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/UsbBusDxe.debug" at + .text_addr = 0x6c85240 +add symbol table from file "/home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/UsbKbDxe.debug" at + .text_addr = 0x6cb3240 +add symbol table from file "/home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/UsbMassStorageDxe.debug" at + .text_addr = 0x6c6d240 +add symbol table from file "/home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/QemuVideoDxe.debug" at + .text_addr = 0x6c66240 +add symbol table from file "/home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/VirtioGpuDxe.debug" at + .text_addr = 0x6c60240 +add symbol table from file "/home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/Shell.debug" at + .text_addr = 0x64f5240 (gdb) info functions CoreHandleProtocol All functions matching regular expression "CoreHandleProtocol": @@ -108,6 +130,13 @@ EFI_STATUS CoreHandleProtocol(EFI_HANDLE, EFI_GUID *, void **); Symbol "CoreHandleProtocol" is a function at address 0x7ea4aa9. (gdb) b CoreHandleProtocol + +(gdb) info symbol 0x82F40A +_ModuleEntryPoint in section .text of /home/koenigr/Memtest/git/edk2/Build/OvmfX64/DEBUG_GCC5/X64/PcdPeim.debug + +(gdb) b *0x82F40A +Breakpoint 2 at 0x82f40a: file /home/koenigr/Memtest/git/edk2/MdePkg/Library/PeimEntryPoint/PeimEntryPoint.c, line 33. + (gdb) target remote localhost:1234 Remote debugging using localhost:1234 warning: No executable has been specified and target does not support @@ -115,8 +144,11 @@ determining executable automatically. Try using the "file" command. 0x000000000000fff0 in ?? () (gdb) c + The debugger stops, and we can do source code level debug. +!!!!!!!!!!!!!!!!!!!!!!!!!!! DOES NOT WORK !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! + ┌──/home/akira/src/ovmf-debug/edk2/MdeModulePkg/Core/Dxe/Hand/Handle.c──────┐ │933 CoreHandleProtocol ( │ │934 IN EFI_HANDLE UserHandle, │ |