From 001d1885f0012dbedef44bd828f91ba048029261 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 8 Apr 2019 13:20:41 -0600 Subject: sandbox: Improve debugging in initcall_run_list() At present if one of the initcalls fails on sandbox the address printing is not help, e.g.: initcall sequence 0000557678967c80 failed at call 00005576709dfe1f (err=-96) This is because U-Boot gets relocated high into memory and the relocation offset (gd->reloc_off) does not work correctly for sandbox. Add support for finding the base address of the text region (at least on Linux) and use that to set the relocation offset. This makes the output better: initcall sequence 0000560775957c80 failed at call 0000000000048134 (err=-96) Then you use can use grep to see which init call failed, e.g.: $ grep 0000000000048134 u-boot.map stdio_add_devices Of course another option is to run it with a debugger such as gdb: $ gdb u-boot ... (gdb) br initcall.h:41 Breakpoint 1 at 0x4db9d: initcall.h:41. (2 locations) Note that two locations are reported, since this function is used in both board_init_f() and board_init_r(). (gdb) r Starting program: /tmp/b/sandbox/u-boot [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". U-Boot 2018.09-00264-ge0c2ba9814-dirty (Sep 22 2018 - 12:21:46 -0600) DRAM: 128 MiB MMC: Breakpoint 1, initcall_run_list (init_sequence=0x5555559619e0 ) at /scratch/sglass/cosarm/src/third_party/u-boot/files/include/initcall.h:41 41 printf("initcall sequence %p failed at call %p (err=%d)\n", (gdb) print *init_fnc_ptr $1 = (const init_fnc_t) 0x55555559c114 (gdb) Signed-off-by: Simon Glass --- include/initcall.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include/initcall.h') diff --git a/include/initcall.h b/include/initcall.h index 3ac01aa2cd..a38c83efa4 100644 --- a/include/initcall.h +++ b/include/initcall.h @@ -22,13 +22,17 @@ static inline int initcall_run_list(const init_fnc_t init_sequence[]) unsigned long reloc_ofs = 0; int ret; - if (gd->flags & GD_FLG_RELOC) + /* + * Sandbox is relocated by the OS, so symbols always appear at + * the relocated address. + */ + if (IS_ENABLED(CONFIG_SANDBOX) || (gd->flags & GD_FLG_RELOC)) reloc_ofs = gd->reloc_off; #ifdef CONFIG_EFI_APP reloc_ofs = (unsigned long)image_base; #endif debug("initcall: %p", (char *)*init_fnc_ptr - reloc_ofs); - if (gd->flags & GD_FLG_RELOC) + if (reloc_ofs) debug(" (relocated to %p)\n", (char *)*init_fnc_ptr); else debug("\n"); -- cgit v1.2.1