| Message ID | 7ed11e02b0db005231f5c6baa299761f3aa04f6f.1304024417.git.bengardiner@nanometrics.ca |
|---|---|
| State | Accepted |
| Commit | 7124015adad59dea5e72103f63531f3367c6df80 |
| Headers | show |
Hello Ben, Ben Gardiner wrote: > When your emulator is connected at reset (or is used to load u-boot) > it is possible to get the relocation address from the gd->relocaddr > since gd is always in r8 (on ARM) it is addressable before the > gdb has remapped symbols. > > Document this alternate method in-line with the original method > written by Heiko Schocher. > > Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> > CC: Heiko Schocher <hs@denx.de> > CC: Wolfgang Denk <wd@denx.de> > > --- > Changes since V2: > * add gd->relocaddr as a secondary method of obtaining the symbol-file > gdb argument > Changes since V1: > * update to reflect proposed changes to existing debug instructions: > renumber steps, remove note about -DDEBUG > --- > doc/README.arm-relocation | 8 ++++++++ > 1 files changed, 8 insertions(+), 0 deletions(-) Thanks! Acked-by: Heiko Schocher <hs@denx.de> bye, Heiko
Dear Ben Gardiner, In message <7ed11e02b0db005231f5c6baa299761f3aa04f6f.1304024417.git.bengardiner@nanometrics.ca> you wrote: > When your emulator is connected at reset (or is used to load u-boot) > it is possible to get the relocation address from the gd->relocaddr > since gd is always in r8 (on ARM) it is addressable before the > gdb has remapped symbols. > > Document this alternate method in-line with the original method > written by Heiko Schocher. > > Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> > CC: Heiko Schocher <hs@denx.de> > CC: Wolfgang Denk <wd@denx.de> > > --- > Changes since V2: > * add gd->relocaddr as a secondary method of obtaining the symbol-file > gdb argument > Changes since V1: > * update to reflect proposed changes to existing debug instructions: > renumber steps, remove note about -DDEBUG > --- > doc/README.arm-relocation | 8 ++++++++ > 1 files changed, 8 insertions(+), 0 deletions(-) Applied, thanks. Best regards, Wolfgang Denk
diff --git a/doc/README.arm-relocation b/doc/README.arm-relocation index 8bfb500..45f5ea7 100644 --- a/doc/README.arm-relocation +++ b/doc/README.arm-relocation @@ -164,6 +164,7 @@ Program received signal SIGSTOP, Stopped (signal). add-symbol-file u-boot 0x8ff08000 ^^^^^^^^^^ get this address from u-boot bdinfo command + or get it from gd->relocaddr in gdb => bdinfo rch_number = XXXXXXXXXX @@ -182,4 +183,11 @@ irq_sp = XXXXXXXXXX sp start = XXXXXXXXXX FB base = XXXXXXXXXX +or interrupt execution by any means and re-load the symbols at the location +specified by gd->relocaddr -- this is only valid after board_init_f. + +(gdb) set $s = gd->relocaddr +(gdb) symbol-file +(gdb) add-symbol-file u-boot $s + Now you can use gdb as usual :-)
When your emulator is connected at reset (or is used to load u-boot) it is possible to get the relocation address from the gd->relocaddr since gd is always in r8 (on ARM) it is addressable before the gdb has remapped symbols. Document this alternate method in-line with the original method written by Heiko Schocher. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> CC: Heiko Schocher <hs@denx.de> CC: Wolfgang Denk <wd@denx.de> --- Changes since V2: * add gd->relocaddr as a secondary method of obtaining the symbol-file gdb argument Changes since V1: * update to reflect proposed changes to existing debug instructions: renumber steps, remove note about -DDEBUG --- doc/README.arm-relocation | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)