diff options
| author | Gustavo Romero <gromero@linux.vnet.ibm.com> | 2017-07-20 17:49:02 -0400 |
|---|---|---|
| committer | Mark Wielaard <mark@klomp.org> | 2017-07-25 12:20:42 +0200 |
| commit | 55a471f5fe44945414af243613d4590c4e7cd8d1 (patch) | |
| tree | 54e51962b2d00e9bb61a7fc3123f15a7fefb58fa /backends | |
| parent | 55cb7dfa7e9afb3660b21e51434641c7287baf11 (diff) | |
ppc64: Add HTM SPRs support to readelf
Since POWER8, PowerPC 64 supports Hardware Transactional Memory, which has
three special purpose registers associated to it: tfhar, tfiar, and texasr.
This commit add HTM SPRs set as known note type so it's possible to use
'readelf --notes' to inspect the HTM SPRs in a coredump file generated in
such a machines.
Signed-off-by: Gustavo Romero <gromero@linux.vnet.ibm.com>
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/ChangeLog | 8 | ||||
| -rw-r--r-- | backends/ppc_corenote.c | 13 | ||||
| -rw-r--r-- | backends/ppc_regs.c | 10 |
3 files changed, 28 insertions, 3 deletions
diff --git a/backends/ChangeLog b/backends/ChangeLog index 88b9764a..83710c19 100644 --- a/backends/ChangeLog +++ b/backends/ChangeLog @@ -1,4 +1,10 @@ -2017-08-20 Mark Wielaard <mark@klomp.org> +2017-07-19 Gustavo Romero <gromero@linux.vnet.ibm.com> + + * ppc_corenote.c: Add offsets for ppc64 HTM SPRs: thfar, tfiar, + and texasr. + * ppc_regs.c: Add names for ppc64 HTM SPRs mappings. + +2017-07-20 Mark Wielaard <mark@klomp.org> * aarch64_init.c (aarch64_init): Hook data_marker_symbol. * aarch64_symbol.c (aarch64_data_marker_symbol): New function. diff --git a/backends/ppc_corenote.c b/backends/ppc_corenote.c index 9ac88712..2b4ada7a 100644 --- a/backends/ppc_corenote.c +++ b/backends/ppc_corenote.c @@ -94,9 +94,20 @@ static const Ebl_Register_Location spe_regs[] = { .offset = 34 * 4, .regno = 612, .count = 1, .bits = 32 } }; +static const Ebl_Register_Location tm_spr_regs[] = + { + /* tfhar */ + { .offset = 0, .regno = 114, .count = 1, .bits = 64 }, + /* texasr */ + { .offset = 8, .regno = 116, .count = 1, .bits = 64 }, + /* tfiar */ + { .offset = 16, .regno = 115, .count = 1, .bits = 64 } + }; + #define EXTRA_NOTES \ EXTRA_REGSET (NT_PPC_VMX, 34 * 16, altivec_regs) \ - EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs) + EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs) \ + EXTRA_REGSET (NT_PPC_TM_SPR, 3 * 8, tm_spr_regs) #if BITS == 32 # define ULONG uint32_t diff --git a/backends/ppc_regs.c b/backends/ppc_regs.c index bcf4f7a3..c2d50118 100644 --- a/backends/ppc_regs.c +++ b/backends/ppc_regs.c @@ -149,7 +149,15 @@ ppc_register_info (Ebl *ebl __attribute__ ((unused)), namelen = 4; break; - case 110 ... 117: + case 114: + return stpcpy (name, "tfhar") + 1 - name; + case 115: + return stpcpy (name, "tfiar") + 1 - name; + case 116: + return stpcpy (name, "texasr") + 1 - name; + + case 110 ... 113: + case 117: case 120 ... 121: case 123 ... 199: name[0] = 's'; |